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/*
* Copyright (C) 2007 Google (Evan Stade)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <math.h>
#include <limits.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "wingdi.h"
#include "wine/unicode.h"
#define COBJMACROS
#include "objbase.h"
#include "ocidl.h"
#include "olectl.h"
#include "ole2.h"
#include "winreg.h"
#include "shlwapi.h"
#include "gdiplus.h"
#include "gdiplus_private.h"
#include "wine/debug.h"
#include "wine/list.h"
WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
/* looks-right constants */
#define ANCHOR_WIDTH (2.0)
#define MAX_ITERS (50)
static GpStatus draw_driver_string(GpGraphics *graphics, GDIPCONST UINT16 *text, INT length,
GDIPCONST GpFont *font, GDIPCONST GpStringFormat *format,
GDIPCONST GpBrush *brush, GDIPCONST PointF *positions,
INT flags, GDIPCONST GpMatrix *matrix);
/* Converts from gdiplus path point type to gdi path point type. */
static BYTE convert_path_point_type(BYTE type)
{
BYTE ret;
switch(type & PathPointTypePathTypeMask){
case PathPointTypeBezier:
ret = PT_BEZIERTO;
break;
case PathPointTypeLine:
ret = PT_LINETO;
break;
case PathPointTypeStart:
ret = PT_MOVETO;
break;
default:
ERR("Bad point type\n");
return 0;
}
if(type & PathPointTypeCloseSubpath)
ret |= PT_CLOSEFIGURE;
return ret;
}
static COLORREF get_gdi_brush_color(const GpBrush *brush)
{
ARGB argb;
switch (brush->bt)
{
case BrushTypeSolidColor:
{
const GpSolidFill *sf = (const GpSolidFill *)brush;
argb = sf->color;
break;
}
case BrushTypeHatchFill:
{
const GpHatch *hatch = (const GpHatch *)brush;
argb = hatch->forecol;
break;
}
case BrushTypeLinearGradient:
{
const GpLineGradient *line = (const GpLineGradient *)brush;
argb = line->startcolor;
break;
}
case BrushTypePathGradient:
{
const GpPathGradient *grad = (const GpPathGradient *)brush;
argb = grad->centercolor;
break;
}
default:
FIXME("unhandled brush type %d\n", brush->bt);
argb = 0;
break;
}
return ARGB2COLORREF(argb);
}
static HBITMAP create_hatch_bitmap(const GpHatch *hatch)
{
HBITMAP hbmp;
BITMAPINFOHEADER bmih;
DWORD *bits;
int x, y;
bmih.biSize = sizeof(bmih);
bmih.biWidth = 8;
bmih.biHeight = 8;
bmih.biPlanes = 1;
bmih.biBitCount = 32;
bmih.biCompression = BI_RGB;
bmih.biSizeImage = 0;
hbmp = CreateDIBSection(0, (BITMAPINFO *)&bmih, DIB_RGB_COLORS, (void **)&bits, NULL, 0);
if (hbmp)
{
const char *hatch_data;
if (get_hatch_data(hatch->hatchstyle, &hatch_data) == Ok)
{
for (y = 0; y < 8; y++)
{
for (x = 0; x < 8; x++)
{
if (hatch_data[y] & (0x80 >> x))
bits[y * 8 + x] = hatch->forecol;
else
bits[y * 8 + x] = hatch->backcol;
}
}
}
else
{
FIXME("Unimplemented hatch style %d\n", hatch->hatchstyle);
for (y = 0; y < 64; y++)
bits[y] = hatch->forecol;
}
}
return hbmp;
}
static GpStatus create_gdi_logbrush(const GpBrush *brush, LOGBRUSH *lb)
{
switch (brush->bt)
{
case BrushTypeSolidColor:
{
const GpSolidFill *sf = (const GpSolidFill *)brush;
lb->lbStyle = BS_SOLID;
lb->lbColor = ARGB2COLORREF(sf->color);
lb->lbHatch = 0;
return Ok;
}
case BrushTypeHatchFill:
{
const GpHatch *hatch = (const GpHatch *)brush;
HBITMAP hbmp;
hbmp = create_hatch_bitmap(hatch);
if (!hbmp) return OutOfMemory;
lb->lbStyle = BS_PATTERN;
lb->lbColor = 0;
lb->lbHatch = (ULONG_PTR)hbmp;
return Ok;
}
default:
FIXME("unhandled brush type %d\n", brush->bt);
lb->lbStyle = BS_SOLID;
lb->lbColor = get_gdi_brush_color(brush);
lb->lbHatch = 0;
return Ok;
}
}
static GpStatus free_gdi_logbrush(LOGBRUSH *lb)
{
switch (lb->lbStyle)
{
case BS_PATTERN:
DeleteObject((HGDIOBJ)(ULONG_PTR)lb->lbHatch);
break;
}
return Ok;
}
static HBRUSH create_gdi_brush(const GpBrush *brush)
{
LOGBRUSH lb;
HBRUSH gdibrush;
if (create_gdi_logbrush(brush, &lb) != Ok) return 0;
gdibrush = CreateBrushIndirect(&lb);
free_gdi_logbrush(&lb);
return gdibrush;
}
static INT prepare_dc(GpGraphics *graphics, GpPen *pen)
{
LOGBRUSH lb;
HPEN gdipen;
REAL width;
INT save_state, i, numdashes;
GpPointF pt[2];
DWORD dash_array[MAX_DASHLEN];
save_state = SaveDC(graphics->hdc);
EndPath(graphics->hdc);
if(pen->unit == UnitPixel){
width = pen->width;
}
else{
/* Get an estimate for the amount the pen width is affected by the world
* transform. (This is similar to what some of the wine drivers do.) */
pt[0].X = 0.0;
pt[0].Y = 0.0;
pt[1].X = 1.0;
pt[1].Y = 1.0;
GdipTransformMatrixPoints(&graphics->worldtrans, pt, 2);
width = sqrt((pt[1].X - pt[0].X) * (pt[1].X - pt[0].X) +
(pt[1].Y - pt[0].Y) * (pt[1].Y - pt[0].Y)) / sqrt(2.0);
width *= units_to_pixels(pen->width, pen->unit == UnitWorld ? graphics->unit : pen->unit, graphics->xres);
width *= graphics->scale;
}
if(pen->dash == DashStyleCustom){
numdashes = min(pen->numdashes, MAX_DASHLEN);
TRACE("dashes are: ");
for(i = 0; i < numdashes; i++){
dash_array[i] = gdip_round(width * pen->dashes[i]);
TRACE("%d, ", dash_array[i]);
}
TRACE("\n and the pen style is %x\n", pen->style);
create_gdi_logbrush(pen->brush, &lb);
gdipen = ExtCreatePen(pen->style, gdip_round(width), &lb,
numdashes, dash_array);
free_gdi_logbrush(&lb);
}
else
{
create_gdi_logbrush(pen->brush, &lb);
gdipen = ExtCreatePen(pen->style, gdip_round(width), &lb, 0, NULL);
free_gdi_logbrush(&lb);
}
SelectObject(graphics->hdc, gdipen);
return save_state;
}
static void restore_dc(GpGraphics *graphics, INT state)
{
DeleteObject(SelectObject(graphics->hdc, GetStockObject(NULL_PEN)));
RestoreDC(graphics->hdc, state);
}
/* This helper applies all the changes that the points listed in ptf need in
* order to be drawn on the device context. In the end, this should include at
* least:
* -scaling by page unit
* -applying world transformation
* -converting from float to int
* Native gdiplus uses gdi32 to do all this (via SetMapMode, SetViewportExtEx,
* SetWindowExtEx, SetWorldTransform, etc.) but we cannot because we are using
* gdi to draw, and these functions would irreparably mess with line widths.
*/
static void transform_and_round_points(GpGraphics *graphics, POINT *pti,
GpPointF *ptf, INT count)
{
REAL scale_x, scale_y;
GpMatrix matrix;
int i;
scale_x = units_to_pixels(1.0, graphics->unit, graphics->xres);
scale_y = units_to_pixels(1.0, graphics->unit, graphics->yres);
/* apply page scale */
if(graphics->unit != UnitDisplay)
{
scale_x *= graphics->scale;
scale_y *= graphics->scale;
}
matrix = graphics->worldtrans;
GdipScaleMatrix(&matrix, scale_x, scale_y, MatrixOrderAppend);
GdipTransformMatrixPoints(&matrix, ptf, count);
for(i = 0; i < count; i++){
pti[i].x = gdip_round(ptf[i].X);
pti[i].y = gdip_round(ptf[i].Y);
}
}
static void gdi_alpha_blend(GpGraphics *graphics, INT dst_x, INT dst_y, INT dst_width, INT dst_height,
HDC hdc, INT src_x, INT src_y, INT src_width, INT src_height)
{
if (GetDeviceCaps(graphics->hdc, SHADEBLENDCAPS) == SB_NONE)
{
TRACE("alpha blending not supported by device, fallback to StretchBlt\n");
StretchBlt(graphics->hdc, dst_x, dst_y, dst_width, dst_height,
hdc, src_x, src_y, src_width, src_height, SRCCOPY);
}
else
{
BLENDFUNCTION bf;
bf.BlendOp = AC_SRC_OVER;
bf.BlendFlags = 0;
bf.SourceConstantAlpha = 255;
bf.AlphaFormat = AC_SRC_ALPHA;
GdiAlphaBlend(graphics->hdc, dst_x, dst_y, dst_width, dst_height,
hdc, src_x, src_y, src_width, src_height, bf);
}
}
static GpStatus get_clip_hrgn(GpGraphics *graphics, HRGN *hrgn)
{
/* clipping region is in device coords */
return GdipGetRegionHRgn(graphics->clip, NULL, hrgn);
}
/* Draw ARGB data to the given graphics object */
static GpStatus alpha_blend_bmp_pixels(GpGraphics *graphics, INT dst_x, INT dst_y,
const BYTE *src, INT src_width, INT src_height, INT src_stride, const PixelFormat fmt)
{
GpBitmap *dst_bitmap = (GpBitmap*)graphics->image;
INT x, y;
for (y=0; y<src_height; y++)
{
for (x=0; x<src_width; x++)
{
ARGB dst_color, src_color;
src_color = ((ARGB*)(src + src_stride * y))[x];
if (!(src_color & 0xff000000))
continue;
GdipBitmapGetPixel(dst_bitmap, x+dst_x, y+dst_y, &dst_color);
if (fmt & PixelFormatPAlpha)
GdipBitmapSetPixel(dst_bitmap, x+dst_x, y+dst_y, color_over_fgpremult(dst_color, src_color));
else
GdipBitmapSetPixel(dst_bitmap, x+dst_x, y+dst_y, color_over(dst_color, src_color));
}
}
return Ok;
}
static GpStatus alpha_blend_hdc_pixels(GpGraphics *graphics, INT dst_x, INT dst_y,
const BYTE *src, INT src_width, INT src_height, INT src_stride, PixelFormat fmt)
{
HDC hdc;
HBITMAP hbitmap;
BITMAPINFOHEADER bih;
BYTE *temp_bits;
hdc = CreateCompatibleDC(0);
bih.biSize = sizeof(BITMAPINFOHEADER);
bih.biWidth = src_width;
bih.biHeight = -src_height;
bih.biPlanes = 1;
bih.biBitCount = 32;
bih.biCompression = BI_RGB;
bih.biSizeImage = 0;
bih.biXPelsPerMeter = 0;
bih.biYPelsPerMeter = 0;
bih.biClrUsed = 0;
bih.biClrImportant = 0;
hbitmap = CreateDIBSection(hdc, (BITMAPINFO*)&bih, DIB_RGB_COLORS,
(void**)&temp_bits, NULL, 0);
if (GetDeviceCaps(graphics->hdc, SHADEBLENDCAPS) == SB_NONE ||
fmt & PixelFormatPAlpha)
memcpy(temp_bits, src, src_width * src_height * 4);
else
convert_32bppARGB_to_32bppPARGB(src_width, src_height, temp_bits,
4 * src_width, src, src_stride);
SelectObject(hdc, hbitmap);
gdi_alpha_blend(graphics, dst_x, dst_y, src_width, src_height,
hdc, 0, 0, src_width, src_height);
DeleteDC(hdc);
DeleteObject(hbitmap);
return Ok;
}
static GpStatus alpha_blend_pixels_hrgn(GpGraphics *graphics, INT dst_x, INT dst_y,
const BYTE *src, INT src_width, INT src_height, INT src_stride, HRGN hregion, PixelFormat fmt)
{
GpStatus stat=Ok;
if (graphics->image && graphics->image->type == ImageTypeBitmap)
{
DWORD i;
int size;
RGNDATA *rgndata;
RECT *rects;
HRGN hrgn, visible_rgn;
hrgn = CreateRectRgn(dst_x, dst_y, dst_x + src_width, dst_y + src_height);
if (!hrgn)
return OutOfMemory;
stat = get_clip_hrgn(graphics, &visible_rgn);
if (stat != Ok)
{
DeleteObject(hrgn);
return stat;
}
if (visible_rgn)
{
CombineRgn(hrgn, hrgn, visible_rgn, RGN_AND);
DeleteObject(visible_rgn);
}
if (hregion)
CombineRgn(hrgn, hrgn, hregion, RGN_AND);
size = GetRegionData(hrgn, 0, NULL);
rgndata = heap_alloc_zero(size);
if (!rgndata)
{
DeleteObject(hrgn);
return OutOfMemory;
}
GetRegionData(hrgn, size, rgndata);
rects = (RECT*)rgndata->Buffer;
for (i=0; stat == Ok && i<rgndata->rdh.nCount; i++)
{
stat = alpha_blend_bmp_pixels(graphics, rects[i].left, rects[i].top,
&src[(rects[i].left - dst_x) * 4 + (rects[i].top - dst_y) * src_stride],
rects[i].right - rects[i].left, rects[i].bottom - rects[i].top,
src_stride, fmt);
}
heap_free(rgndata);
DeleteObject(hrgn);
return stat;
}
else if (graphics->image && graphics->image->type == ImageTypeMetafile)
{
ERR("This should not be used for metafiles; fix caller\n");
return NotImplemented;
}
else
{
HRGN hrgn;
int save;
stat = get_clip_hrgn(graphics, &hrgn);
if (stat != Ok)
return stat;
save = SaveDC(graphics->hdc);
if (hrgn)
ExtSelectClipRgn(graphics->hdc, hrgn, RGN_AND);
if (hregion)
ExtSelectClipRgn(graphics->hdc, hregion, RGN_AND);
stat = alpha_blend_hdc_pixels(graphics, dst_x, dst_y, src, src_width,
src_height, src_stride, fmt);
RestoreDC(graphics->hdc, save);
DeleteObject(hrgn);
return stat;
}
}
static GpStatus alpha_blend_pixels(GpGraphics *graphics, INT dst_x, INT dst_y,
const BYTE *src, INT src_width, INT src_height, INT src_stride, PixelFormat fmt)
{
return alpha_blend_pixels_hrgn(graphics, dst_x, dst_y, src, src_width, src_height, src_stride, NULL, fmt);
}
static ARGB blend_colors(ARGB start, ARGB end, REAL position)
{
INT start_a, end_a, final_a;
INT pos;
pos = gdip_round(position * 0xff);
start_a = ((start >> 24) & 0xff) * (pos ^ 0xff);
end_a = ((end >> 24) & 0xff) * pos;
final_a = start_a + end_a;
if (final_a < 0xff) return 0;
return (final_a / 0xff) << 24 |
((((start >> 16) & 0xff) * start_a + (((end >> 16) & 0xff) * end_a)) / final_a) << 16 |
((((start >> 8) & 0xff) * start_a + (((end >> 8) & 0xff) * end_a)) / final_a) << 8 |
(((start & 0xff) * start_a + ((end & 0xff) * end_a)) / final_a);
}
static ARGB blend_line_gradient(GpLineGradient* brush, REAL position)
{
REAL blendfac;
/* clamp to between 0.0 and 1.0, using the wrap mode */
if (brush->wrap == WrapModeTile)
{
position = fmodf(position, 1.0f);
if (position < 0.0f) position += 1.0f;
}
else /* WrapModeFlip* */
{
position = fmodf(position, 2.0f);
if (position < 0.0f) position += 2.0f;
if (position > 1.0f) position = 2.0f - position;
}
if (brush->blendcount == 1)
blendfac = position;
else
{
int i=1;
REAL left_blendpos, left_blendfac, right_blendpos, right_blendfac;
REAL range;
/* locate the blend positions surrounding this position */
while (position > brush->blendpos[i])
i++;
/* interpolate between the blend positions */
left_blendpos = brush->blendpos[i-1];
left_blendfac = brush->blendfac[i-1];
right_blendpos = brush->blendpos[i];
right_blendfac = brush->blendfac[i];
range = right_blendpos - left_blendpos;
blendfac = (left_blendfac * (right_blendpos - position) +
right_blendfac * (position - left_blendpos)) / range;
}
if (brush->pblendcount == 0)
return blend_colors(brush->startcolor, brush->endcolor, blendfac);
else
{
int i=1;
ARGB left_blendcolor, right_blendcolor;
REAL left_blendpos, right_blendpos;
/* locate the blend colors surrounding this position */
while (blendfac > brush->pblendpos[i])
i++;
/* interpolate between the blend colors */
left_blendpos = brush->pblendpos[i-1];
left_blendcolor = brush->pblendcolor[i-1];
right_blendpos = brush->pblendpos[i];
right_blendcolor = brush->pblendcolor[i];
blendfac = (blendfac - left_blendpos) / (right_blendpos - left_blendpos);
return blend_colors(left_blendcolor, right_blendcolor, blendfac);
}
}
static BOOL round_color_matrix(const ColorMatrix *matrix, int values[5][5])
{
/* Convert floating point color matrix to int[5][5], return TRUE if it's an identity */
BOOL identity = TRUE;
int i, j;
for (i=0; i<4; i++)
for (j=0; j<5; j++)
{
if (matrix->m[j][i] != (i == j ? 1.0 : 0.0))
identity = FALSE;
values[j][i] = gdip_round(matrix->m[j][i] * 256.0);
}
return identity;
}
static ARGB transform_color(ARGB color, int matrix[5][5])
{
int val[5], res[4];
int i, j;
unsigned char a, r, g, b;
val[0] = ((color >> 16) & 0xff); /* red */
val[1] = ((color >> 8) & 0xff); /* green */
val[2] = (color & 0xff); /* blue */
val[3] = ((color >> 24) & 0xff); /* alpha */
val[4] = 255; /* translation */
for (i=0; i<4; i++)
{
res[i] = 0;
for (j=0; j<5; j++)
res[i] += matrix[j][i] * val[j];
}
a = min(max(res[3] / 256, 0), 255);
r = min(max(res[0] / 256, 0), 255);
g = min(max(res[1] / 256, 0), 255);
b = min(max(res[2] / 256, 0), 255);
return (a << 24) | (r << 16) | (g << 8) | b;
}
static BOOL color_is_gray(ARGB color)
{
unsigned char r, g, b;
r = (color >> 16) & 0xff;
g = (color >> 8) & 0xff;
b = color & 0xff;
return (r == g) && (g == b);
}
/* returns preferred pixel format for the applied attributes */
PixelFormat apply_image_attributes(const GpImageAttributes *attributes, LPBYTE data,
UINT width, UINT height, INT stride, ColorAdjustType type, PixelFormat fmt)
{
UINT x, y;
INT i;
if (attributes->colorkeys[type].enabled ||
attributes->colorkeys[ColorAdjustTypeDefault].enabled)
{
const struct color_key *key;
BYTE min_blue, min_green, min_red;
BYTE max_blue, max_green, max_red;
if (!data || fmt != PixelFormat32bppARGB)
return PixelFormat32bppARGB;
if (attributes->colorkeys[type].enabled)
key = &attributes->colorkeys[type];
else
key = &attributes->colorkeys[ColorAdjustTypeDefault];
min_blue = key->low&0xff;
min_green = (key->low>>8)&0xff;
min_red = (key->low>>16)&0xff;
max_blue = key->high&0xff;
max_green = (key->high>>8)&0xff;
max_red = (key->high>>16)&0xff;
for (x=0; x<width; x++)
for (y=0; y<height; y++)
{
ARGB *src_color;
BYTE blue, green, red;
src_color = (ARGB*)(data + stride * y + sizeof(ARGB) * x);
blue = *src_color&0xff;
green = (*src_color>>8)&0xff;
red = (*src_color>>16)&0xff;
if (blue >= min_blue && green >= min_green && red >= min_red &&
blue <= max_blue && green <= max_green && red <= max_red)
*src_color = 0x00000000;
}
}
if (attributes->colorremaptables[type].enabled ||
attributes->colorremaptables[ColorAdjustTypeDefault].enabled)
{
const struct color_remap_table *table;
if (!data || fmt != PixelFormat32bppARGB)
return PixelFormat32bppARGB;
if (attributes->colorremaptables[type].enabled)
table = &attributes->colorremaptables[type];
else
table = &attributes->colorremaptables[ColorAdjustTypeDefault];
for (x=0; x<width; x++)
for (y=0; y<height; y++)
{
ARGB *src_color;
src_color = (ARGB*)(data + stride * y + sizeof(ARGB) * x);
for (i=0; i<table->mapsize; i++)
{
if (*src_color == table->colormap[i].oldColor.Argb)
{
*src_color = table->colormap[i].newColor.Argb;
break;
}
}
}
}
if (attributes->colormatrices[type].enabled ||
attributes->colormatrices[ColorAdjustTypeDefault].enabled)
{
const struct color_matrix *colormatrices;
int color_matrix[5][5];
int gray_matrix[5][5];
BOOL identity;
if (!data || fmt != PixelFormat32bppARGB)
return PixelFormat32bppARGB;
if (attributes->colormatrices[type].enabled)
colormatrices = &attributes->colormatrices[type];
else
colormatrices = &attributes->colormatrices[ColorAdjustTypeDefault];
identity = round_color_matrix(&colormatrices->colormatrix, color_matrix);
if (colormatrices->flags == ColorMatrixFlagsAltGray)
identity = (round_color_matrix(&colormatrices->graymatrix, gray_matrix) && identity);
if (!identity)
{
for (x=0; x<width; x++)
{
for (y=0; y<height; y++)
{
ARGB *src_color;
src_color = (ARGB*)(data + stride * y + sizeof(ARGB) * x);
if (colormatrices->flags == ColorMatrixFlagsDefault ||
!color_is_gray(*src_color))
{
*src_color = transform_color(*src_color, color_matrix);
}
else if (colormatrices->flags == ColorMatrixFlagsAltGray)
{
*src_color = transform_color(*src_color, gray_matrix);
}
}
}
}
}
if (attributes->gamma_enabled[type] ||
attributes->gamma_enabled[ColorAdjustTypeDefault])
{
REAL gamma;
if (!data || fmt != PixelFormat32bppARGB)
return PixelFormat32bppARGB;
if (attributes->gamma_enabled[type])
gamma = attributes->gamma[type];
else
gamma = attributes->gamma[ColorAdjustTypeDefault];
for (x=0; x<width; x++)
for (y=0; y<height; y++)
{
ARGB *src_color;
BYTE blue, green, red;
src_color = (ARGB*)(data + stride * y + sizeof(ARGB) * x);
blue = *src_color&0xff;
green = (*src_color>>8)&0xff;
red = (*src_color>>16)&0xff;
/* FIXME: We should probably use a table for this. */
blue = floorf(powf(blue / 255.0, gamma) * 255.0);
green = floorf(powf(green / 255.0, gamma) * 255.0);
red = floorf(powf(red / 255.0, gamma) * 255.0);
*src_color = (*src_color & 0xff000000) | (red << 16) | (green << 8) | blue;
}
}
return fmt;
}
/* Given a bitmap and its source rectangle, find the smallest rectangle in the
* bitmap that contains all the pixels we may need to draw it. */
static void get_bitmap_sample_size(InterpolationMode interpolation, WrapMode wrap,
GpBitmap* bitmap, REAL srcx, REAL srcy, REAL srcwidth, REAL srcheight,
GpRect *rect)
{
INT left, top, right, bottom;
switch (interpolation)
{
case InterpolationModeHighQualityBilinear:
case InterpolationModeHighQualityBicubic:
/* FIXME: Include a greater range for the prefilter? */
case InterpolationModeBicubic:
case InterpolationModeBilinear:
left = (INT)(floorf(srcx));
top = (INT)(floorf(srcy));
right = (INT)(ceilf(srcx+srcwidth));
bottom = (INT)(ceilf(srcy+srcheight));
break;
case InterpolationModeNearestNeighbor:
default:
left = gdip_round(srcx);
top = gdip_round(srcy);
right = gdip_round(srcx+srcwidth);
bottom = gdip_round(srcy+srcheight);
break;
}
if (wrap == WrapModeClamp)
{
if (left < 0)
left = 0;
if (top < 0)
top = 0;
if (right >= bitmap->width)
right = bitmap->width-1;
if (bottom >= bitmap->height)
bottom = bitmap->height-1;
if (bottom < top || right < left)
/* entirely outside image, just sample a pixel so we don't have to
* special-case this later */
left = top = right = bottom = 0;
}
else
{
/* In some cases we can make the rectangle smaller here, but the logic
* is hard to get right, and tiling suggests we're likely to use the
* entire source image. */
if (left < 0 || right >= bitmap->width)
{
left = 0;
right = bitmap->width-1;
}
if (top < 0 || bottom >= bitmap->height)
{
top = 0;
bottom = bitmap->height-1;
}
}
rect->X = left;
rect->Y = top;
rect->Width = right - left + 1;
rect->Height = bottom - top + 1;
}
static ARGB sample_bitmap_pixel(GDIPCONST GpRect *src_rect, LPBYTE bits, UINT width,
UINT height, INT x, INT y, GDIPCONST GpImageAttributes *attributes)
{
if (attributes->wrap == WrapModeClamp)
{
if (x < 0 || y < 0 || x >= width || y >= height)
return attributes->outside_color;
}
else
{
/* Tiling. Make sure co-ordinates are positive as it simplifies the math. */
if (x < 0)
x = width*2 + x % (width * 2);
if (y < 0)
y = height*2 + y % (height * 2);
if ((attributes->wrap & 1) == 1)
{
/* Flip X */
if ((x / width) % 2 == 0)
x = x % width;
else
x = width - 1 - x % width;
}
else
x = x % width;
if ((attributes->wrap & 2) == 2)
{
/* Flip Y */
if ((y / height) % 2 == 0)
y = y % height;
else
y = height - 1 - y % height;
}
else
y = y % height;
}
if (x < src_rect->X || y < src_rect->Y || x >= src_rect->X + src_rect->Width || y >= src_rect->Y + src_rect->Height)
{
ERR("out of range pixel requested\n");
return 0xffcd0084;
}
return ((DWORD*)(bits))[(x - src_rect->X) + (y - src_rect->Y) * src_rect->Width];
}
static ARGB resample_bitmap_pixel(GDIPCONST GpRect *src_rect, LPBYTE bits, UINT width,
UINT height, GpPointF *point, GDIPCONST GpImageAttributes *attributes,
InterpolationMode interpolation, PixelOffsetMode offset_mode)
{
static int fixme;
switch (interpolation)
{
default:
if (!fixme++)
FIXME("Unimplemented interpolation %i\n", interpolation);
/* fall-through */
case InterpolationModeBilinear:
{
REAL leftxf, topyf;
INT leftx, rightx, topy, bottomy;
ARGB topleft, topright, bottomleft, bottomright;
ARGB top, bottom;
float x_offset;
leftxf = floorf(point->X);
leftx = (INT)leftxf;
rightx = (INT)ceilf(point->X);
topyf = floorf(point->Y);
topy = (INT)topyf;
bottomy = (INT)ceilf(point->Y);
if (leftx == rightx && topy == bottomy)
return sample_bitmap_pixel(src_rect, bits, width, height,
leftx, topy, attributes);
topleft = sample_bitmap_pixel(src_rect, bits, width, height,
leftx, topy, attributes);
topright = sample_bitmap_pixel(src_rect, bits, width, height,
rightx, topy, attributes);
bottomleft = sample_bitmap_pixel(src_rect, bits, width, height,
leftx, bottomy, attributes);
bottomright = sample_bitmap_pixel(src_rect, bits, width, height,
rightx, bottomy, attributes);
x_offset = point->X - leftxf;
top = blend_colors(topleft, topright, x_offset);
bottom = blend_colors(bottomleft, bottomright, x_offset);
return blend_colors(top, bottom, point->Y - topyf);
}
case InterpolationModeNearestNeighbor:
{
FLOAT pixel_offset;
switch (offset_mode)
{
default:
case PixelOffsetModeNone:
case PixelOffsetModeHighSpeed:
pixel_offset = 0.5;
break;
case PixelOffsetModeHalf:
case PixelOffsetModeHighQuality:
pixel_offset = 0.0;
break;
}
return sample_bitmap_pixel(src_rect, bits, width, height,
floorf(point->X + pixel_offset), floorf(point->Y + pixel_offset), attributes);
}
}
}
static REAL intersect_line_scanline(const GpPointF *p1, const GpPointF *p2, REAL y)
{
return (p1->X - p2->X) * (p2->Y - y) / (p2->Y - p1->Y) + p2->X;
}
static BOOL brush_can_fill_path(GpBrush *brush)
{
switch (brush->bt)
{
case BrushTypeSolidColor:
return TRUE;
case BrushTypeHatchFill:
{
GpHatch *hatch = (GpHatch*)brush;
return ((hatch->forecol & 0xff000000) == 0xff000000) &&
((hatch->backcol & 0xff000000) == 0xff000000);
}
case BrushTypeLinearGradient:
case BrushTypeTextureFill:
/* Gdi32 isn't much help with these, so we should use brush_fill_pixels instead. */
default:
return FALSE;
}
}
static void brush_fill_path(GpGraphics *graphics, GpBrush* brush)
{
switch (brush->bt)
{
case BrushTypeSolidColor:
{
GpSolidFill *fill = (GpSolidFill*)brush;
HBITMAP bmp = ARGB2BMP(fill->color);
if (bmp)
{
RECT rc;
/* partially transparent fill */
SelectClipPath(graphics->hdc, RGN_AND);
if (GetClipBox(graphics->hdc, &rc) != NULLREGION)
{
HDC hdc = CreateCompatibleDC(NULL);
if (!hdc) break;
SelectObject(hdc, bmp);
gdi_alpha_blend(graphics, rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top,
hdc, 0, 0, 1, 1);
DeleteDC(hdc);
}
DeleteObject(bmp);
break;
}
/* else fall through */
}
default:
{
HBRUSH gdibrush, old_brush;
gdibrush = create_gdi_brush(brush);
if (!gdibrush) return;
old_brush = SelectObject(graphics->hdc, gdibrush);
FillPath(graphics->hdc);
SelectObject(graphics->hdc, old_brush);
DeleteObject(gdibrush);
break;
}
}
}
static BOOL brush_can_fill_pixels(GpBrush *brush)
{
switch (brush->bt)
{
case BrushTypeSolidColor:
case BrushTypeHatchFill:
case BrushTypeLinearGradient:
case BrushTypeTextureFill:
case BrushTypePathGradient:
return TRUE;
default:
return FALSE;
}
}
static GpStatus brush_fill_pixels(GpGraphics *graphics, GpBrush *brush,
DWORD *argb_pixels, GpRect *fill_area, UINT cdwStride)
{
switch (brush->bt)
{
case BrushTypeSolidColor:
{
int x, y;
GpSolidFill *fill = (GpSolidFill*)brush;
for (x=0; x<fill_area->Width; x++)
for (y=0; y<fill_area->Height; y++)
argb_pixels[x + y*cdwStride] = fill->color;
return Ok;
}
case BrushTypeHatchFill:
{
int x, y;
GpHatch *fill = (GpHatch*)brush;
const char *hatch_data;
if (get_hatch_data(fill->hatchstyle, &hatch_data) != Ok)
return NotImplemented;
for (x=0; x<fill_area->Width; x++)
for (y=0; y<fill_area->Height; y++)
{
int hx, hy;
/* FIXME: Account for the rendering origin */
hx = (x + fill_area->X) % 8;
hy = (y + fill_area->Y) % 8;
if ((hatch_data[7-hy] & (0x80 >> hx)) != 0)
argb_pixels[x + y*cdwStride] = fill->forecol;
else
argb_pixels[x + y*cdwStride] = fill->backcol;
}
return Ok;
}
case BrushTypeLinearGradient:
{
GpLineGradient *fill = (GpLineGradient*)brush;
GpPointF draw_points[3], line_points[3];
GpStatus stat;
static const GpRectF box_1 = { 0.0, 0.0, 1.0, 1.0 };
GpMatrix *world_to_gradient; /* FIXME: Store this in the brush? */
int x, y;
draw_points[0].X = fill_area->X;
draw_points[0].Y = fill_area->Y;
draw_points[1].X = fill_area->X+1;
draw_points[1].Y = fill_area->Y;
draw_points[2].X = fill_area->X;
draw_points[2].Y = fill_area->Y+1;
/* Transform the points to a co-ordinate space where X is the point's
* position in the gradient, 0.0 being the start point and 1.0 the
* end point. */
stat = GdipTransformPoints(graphics, CoordinateSpaceWorld,
CoordinateSpaceDevice, draw_points, 3);
if (stat == Ok)
{
line_points[0] = fill->startpoint;
line_points[1] = fill->endpoint;
line_points[2].X = fill->startpoint.X + (fill->startpoint.Y - fill->endpoint.Y);
line_points[2].Y = fill->startpoint.Y + (fill->endpoint.X - fill->startpoint.X);
stat = GdipCreateMatrix3(&box_1, line_points, &world_to_gradient);
}
if (stat == Ok)
{
stat = GdipInvertMatrix(world_to_gradient);
if (stat == Ok)
stat = GdipTransformMatrixPoints(world_to_gradient, draw_points, 3);
GdipDeleteMatrix(world_to_gradient);
}
if (stat == Ok)
{
REAL x_delta = draw_points[1].X - draw_points[0].X;
REAL y_delta = draw_points[2].X - draw_points[0].X;
for (y=0; y<fill_area->Height; y++)
{
for (x=0; x<fill_area->Width; x++)
{
REAL pos = draw_points[0].X + x * x_delta + y * y_delta;
argb_pixels[x + y*cdwStride] = blend_line_gradient(fill, pos);
}
}
}
return stat;
}
case BrushTypeTextureFill:
{
GpTexture *fill = (GpTexture*)brush;
GpPointF draw_points[3];
GpStatus stat;
int x, y;
GpBitmap *bitmap;
int src_stride;
GpRect src_area;
if (fill->image->type != ImageTypeBitmap)
{
FIXME("metafile texture brushes not implemented\n");
return NotImplemented;
}
bitmap = (GpBitmap*)fill->image;
src_stride = sizeof(ARGB) * bitmap->width;
src_area.X = src_area.Y = 0;
src_area.Width = bitmap->width;
src_area.Height = bitmap->height;
draw_points[0].X = fill_area->X;
draw_points[0].Y = fill_area->Y;
draw_points[1].X = fill_area->X+1;
draw_points[1].Y = fill_area->Y;
draw_points[2].X = fill_area->X;
draw_points[2].Y = fill_area->Y+1;
/* Transform the points to the co-ordinate space of the bitmap. */
stat = GdipTransformPoints(graphics, CoordinateSpaceWorld,
CoordinateSpaceDevice, draw_points, 3);
if (stat == Ok)
{
GpMatrix world_to_texture = fill->transform;
stat = GdipInvertMatrix(&world_to_texture);
if (stat == Ok)
stat = GdipTransformMatrixPoints(&world_to_texture, draw_points, 3);
}
if (stat == Ok && !fill->bitmap_bits)
{
BitmapData lockeddata;
fill->bitmap_bits = heap_alloc_zero(sizeof(ARGB) * bitmap->width * bitmap->height);
if (!fill->bitmap_bits)
stat = OutOfMemory;
if (stat == Ok)
{
lockeddata.Width = bitmap->width;
lockeddata.Height = bitmap->height;
lockeddata.Stride = src_stride;
lockeddata.PixelFormat = PixelFormat32bppARGB;
lockeddata.Scan0 = fill->bitmap_bits;
stat = GdipBitmapLockBits(bitmap, &src_area, ImageLockModeRead|ImageLockModeUserInputBuf,
PixelFormat32bppARGB, &lockeddata);
}
if (stat == Ok)
stat = GdipBitmapUnlockBits(bitmap, &lockeddata);
if (stat == Ok)
apply_image_attributes(fill->imageattributes, fill->bitmap_bits,
bitmap->width, bitmap->height,
src_stride, ColorAdjustTypeBitmap, lockeddata.PixelFormat);
if (stat != Ok)
{
heap_free(fill->bitmap_bits);
fill->bitmap_bits = NULL;
}
}
if (stat == Ok)
{
REAL x_dx = draw_points[1].X - draw_points[0].X;
REAL x_dy = draw_points[1].Y - draw_points[0].Y;
REAL y_dx = draw_points[2].X - draw_points[0].X;
REAL y_dy = draw_points[2].Y - draw_points[0].Y;
for (y=0; y<fill_area->Height; y++)
{
for (x=0; x<fill_area->Width; x++)
{
GpPointF point;
point.X = draw_points[0].X + x * x_dx + y * y_dx;
point.Y = draw_points[0].Y + y * x_dy + y * y_dy;
argb_pixels[x + y*cdwStride] = resample_bitmap_pixel(
&src_area, fill->bitmap_bits, bitmap->width, bitmap->height,
&point, fill->imageattributes, graphics->interpolation,
graphics->pixeloffset);
}
}
}
return stat;
}
case BrushTypePathGradient:
{
GpPathGradient *fill = (GpPathGradient*)brush;
GpPath *flat_path;
GpMatrix world_to_device;
GpStatus stat;
int i, figure_start=0;
GpPointF start_point, end_point, center_point;
BYTE type;
REAL min_yf, max_yf, line1_xf, line2_xf;
INT min_y, max_y, min_x, max_x;
INT x, y;
ARGB outer_color;
static BOOL transform_fixme_once;
if (fill->focus.X != 0.0 || fill->focus.Y != 0.0)
{
static int once;
if (!once++)
FIXME("path gradient focus not implemented\n");
}
if (fill->gamma)
{
static int once;
if (!once++)
FIXME("path gradient gamma correction not implemented\n");
}
if (fill->blendcount)
{
static int once;
if (!once++)
FIXME("path gradient blend not implemented\n");
}
if (fill->pblendcount)
{
static int once;
if (!once++)
FIXME("path gradient preset blend not implemented\n");
}
if (!transform_fixme_once)
{
BOOL is_identity=TRUE;
GdipIsMatrixIdentity(&fill->transform, &is_identity);
if (!is_identity)
{
FIXME("path gradient transform not implemented\n");
transform_fixme_once = TRUE;
}
}
stat = GdipClonePath(fill->path, &flat_path);
if (stat != Ok)
return stat;
stat = get_graphics_transform(graphics, CoordinateSpaceDevice,
CoordinateSpaceWorld, &world_to_device);
if (stat == Ok)
{
stat = GdipTransformPath(flat_path, &world_to_device);
if (stat == Ok)
{
center_point = fill->center;
stat = GdipTransformMatrixPoints(&world_to_device, &center_point, 1);
}
if (stat == Ok)
stat = GdipFlattenPath(flat_path, NULL, 0.5);
}
if (stat != Ok)
{
GdipDeletePath(flat_path);
return stat;
}
for (i=0; i<flat_path->pathdata.Count; i++)
{
int start_center_line=0, end_center_line=0;
BOOL seen_start = FALSE, seen_end = FALSE, seen_center = FALSE;
REAL center_distance;
ARGB start_color, end_color;
REAL dy, dx;
type = flat_path->pathdata.Types[i];
if ((type&PathPointTypePathTypeMask) == PathPointTypeStart)
figure_start = i;
start_point = flat_path->pathdata.Points[i];
start_color = fill->surroundcolors[min(i, fill->surroundcolorcount-1)];
if ((type&PathPointTypeCloseSubpath) == PathPointTypeCloseSubpath || i+1 >= flat_path->pathdata.Count)
{
end_point = flat_path->pathdata.Points[figure_start];
end_color = fill->surroundcolors[min(figure_start, fill->surroundcolorcount-1)];
}
else if ((flat_path->pathdata.Types[i+1] & PathPointTypePathTypeMask) == PathPointTypeLine)
{
end_point = flat_path->pathdata.Points[i+1];
end_color = fill->surroundcolors[min(i+1, fill->surroundcolorcount-1)];
}
else
continue;
outer_color = start_color;
min_yf = center_point.Y;
if (min_yf > start_point.Y) min_yf = start_point.Y;
if (min_yf > end_point.Y) min_yf = end_point.Y;
if (min_yf < fill_area->Y)
min_y = fill_area->Y;
else
min_y = (INT)ceil(min_yf);
max_yf = center_point.Y;
if (max_yf < start_point.Y) max_yf = start_point.Y;
if (max_yf < end_point.Y) max_yf = end_point.Y;
if (max_yf > fill_area->Y + fill_area->Height)
max_y = fill_area->Y + fill_area->Height;
else
max_y = (INT)ceil(max_yf);
dy = end_point.Y - start_point.Y;
dx = end_point.X - start_point.X;
/* This is proportional to the distance from start-end line to center point. */
center_distance = dy * (start_point.X - center_point.X) +
dx * (center_point.Y - start_point.Y);
for (y=min_y; y<max_y; y++)
{
REAL yf = (REAL)y;
if (!seen_start && yf >= start_point.Y)
{
seen_start = TRUE;
start_center_line ^= 1;
}
if (!seen_end && yf >= end_point.Y)
{
seen_end = TRUE;
end_center_line ^= 1;
}
if (!seen_center && yf >= center_point.Y)
{
seen_center = TRUE;
start_center_line ^= 1;
end_center_line ^= 1;
}
if (start_center_line)
line1_xf = intersect_line_scanline(&start_point, &center_point, yf);
else
line1_xf = intersect_line_scanline(&start_point, &end_point, yf);
if (end_center_line)
line2_xf = intersect_line_scanline(&end_point, &center_point, yf);
else
line2_xf = intersect_line_scanline(&start_point, &end_point, yf);
if (line1_xf < line2_xf)
{
min_x = (INT)ceil(line1_xf);
max_x = (INT)ceil(line2_xf);
}
else
{
min_x = (INT)ceil(line2_xf);
max_x = (INT)ceil(line1_xf);
}
if (min_x < fill_area->X)
min_x = fill_area->X;
if (max_x > fill_area->X + fill_area->Width)
max_x = fill_area->X + fill_area->Width;
for (x=min_x; x<max_x; x++)
{
REAL xf = (REAL)x;
REAL distance;
if (start_color != end_color)
{
REAL blend_amount, pdy, pdx;
pdy = yf - center_point.Y;
pdx = xf - center_point.X;
blend_amount = ( (center_point.Y - start_point.Y) * pdx + (start_point.X - center_point.X) * pdy ) / ( dy * pdx - dx * pdy );
outer_color = blend_colors(start_color, end_color, blend_amount);
}
distance = (end_point.Y - start_point.Y) * (start_point.X - xf) +
(end_point.X - start_point.X) * (yf - start_point.Y);
distance = distance / center_distance;
argb_pixels[(x-fill_area->X) + (y-fill_area->Y)*cdwStride] =
blend_colors(outer_color, fill->centercolor, distance);
}
}
}
GdipDeletePath(flat_path);
return stat;
}
default:
return NotImplemented;
}
}
/* Draws the linecap the specified color and size on the hdc. The linecap is in
* direction of the line from x1, y1 to x2, y2 and is anchored on x2, y2. Probably
* should not be called on an hdc that has a path you care about. */
static void draw_cap(GpGraphics *graphics, COLORREF color, GpLineCap cap, REAL size,
const GpCustomLineCap *custom, REAL x1, REAL y1, REAL x2, REAL y2)
{
HGDIOBJ oldbrush = NULL, oldpen = NULL;
GpMatrix matrix;
HBRUSH brush = NULL;
HPEN pen = NULL;
PointF ptf[4], *custptf = NULL;
POINT pt[4], *custpt = NULL;
BYTE *tp = NULL;
REAL theta, dsmall, dbig, dx, dy = 0.0;
INT i, count;
LOGBRUSH lb;
BOOL customstroke;
if((x1 == x2) && (y1 == y2))
return;
theta = gdiplus_atan2(y2 - y1, x2 - x1);
customstroke = (cap == LineCapCustom) && custom && (!custom->fill);
if(!customstroke){
brush = CreateSolidBrush(color);
lb.lbStyle = BS_SOLID;
lb.lbColor = color;
lb.lbHatch = 0;
pen = ExtCreatePen(PS_GEOMETRIC | PS_SOLID | PS_ENDCAP_FLAT |
PS_JOIN_MITER, 1, &lb, 0,
NULL);
oldbrush = SelectObject(graphics->hdc, brush);
oldpen = SelectObject(graphics->hdc, pen);
}
switch(cap){
case LineCapFlat:
break;
case LineCapSquare:
case LineCapSquareAnchor:
case LineCapDiamondAnchor:
size = size * (cap & LineCapNoAnchor ? ANCHOR_WIDTH : 1.0) / 2.0;
if(cap == LineCapDiamondAnchor){
dsmall = cos(theta + M_PI_2) * size;
dbig = sin(theta + M_PI_2) * size;
}
else{
dsmall = cos(theta + M_PI_4) * size;
dbig = sin(theta + M_PI_4) * size;
}
ptf[0].X = x2 - dsmall;
ptf[1].X = x2 + dbig;
ptf[0].Y = y2 - dbig;
ptf[3].Y = y2 + dsmall;
ptf[1].Y = y2 - dsmall;
ptf[2].Y = y2 + dbig;
ptf[3].X = x2 - dbig;
ptf[2].X = x2 + dsmall;
transform_and_round_points(graphics, pt, ptf, 4);
Polygon(graphics->hdc, pt, 4);
break;
case LineCapArrowAnchor:
size = size * 4.0 / sqrt(3.0);
dx = cos(M_PI / 6.0 + theta) * size;
dy = sin(M_PI / 6.0 + theta) * size;
ptf[0].X = x2 - dx;
ptf[0].Y = y2 - dy;
dx = cos(- M_PI / 6.0 + theta) * size;
dy = sin(- M_PI / 6.0 + theta) * size;
ptf[1].X = x2 - dx;
ptf[1].Y = y2 - dy;
ptf[2].X = x2;
ptf[2].Y = y2;
transform_and_round_points(graphics, pt, ptf, 3);
Polygon(graphics->hdc, pt, 3);
break;
case LineCapRoundAnchor:
dx = dy = ANCHOR_WIDTH * size / 2.0;
ptf[0].X = x2 - dx;
ptf[0].Y = y2 - dy;
ptf[1].X = x2 + dx;
ptf[1].Y = y2 + dy;
transform_and_round_points(graphics, pt, ptf, 2);
Ellipse(graphics->hdc, pt[0].x, pt[0].y, pt[1].x, pt[1].y);
break;
case LineCapTriangle:
size = size / 2.0;
dx = cos(M_PI_2 + theta) * size;
dy = sin(M_PI_2 + theta) * size;
ptf[0].X = x2 - dx;
ptf[0].Y = y2 - dy;
ptf[1].X = x2 + dx;
ptf[1].Y = y2 + dy;
dx = cos(theta) * size;
dy = sin(theta) * size;
ptf[2].X = x2 + dx;
ptf[2].Y = y2 + dy;
transform_and_round_points(graphics, pt, ptf, 3);
Polygon(graphics->hdc, pt, 3);
break;
case LineCapRound:
dx = dy = size / 2.0;
ptf[0].X = x2 - dx;
ptf[0].Y = y2 - dy;
ptf[1].X = x2 + dx;
ptf[1].Y = y2 + dy;
dx = -cos(M_PI_2 + theta) * size;
dy = -sin(M_PI_2 + theta) * size;
ptf[2].X = x2 - dx;
ptf[2].Y = y2 - dy;
ptf[3].X = x2 + dx;
ptf[3].Y = y2 + dy;
transform_and_round_points(graphics, pt, ptf, 4);
Pie(graphics->hdc, pt[0].x, pt[0].y, pt[1].x, pt[1].y, pt[2].x,
pt[2].y, pt[3].x, pt[3].y);
break;
case LineCapCustom:
if(!custom)
break;
count = custom->pathdata.Count;
custptf = heap_alloc_zero(count * sizeof(PointF));
custpt = heap_alloc_zero(count * sizeof(POINT));
tp = heap_alloc_zero(count);
if(!custptf || !custpt || !tp)
goto custend;
memcpy(custptf, custom->pathdata.Points, count * sizeof(PointF));
GdipSetMatrixElements(&matrix, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
GdipScaleMatrix(&matrix, size, size, MatrixOrderAppend);
GdipRotateMatrix(&matrix, (180.0 / M_PI) * (theta - M_PI_2),
MatrixOrderAppend);
GdipTranslateMatrix(&matrix, x2, y2, MatrixOrderAppend);
GdipTransformMatrixPoints(&matrix, custptf, count);
transform_and_round_points(graphics, custpt, custptf, count);
for(i = 0; i < count; i++)
tp[i] = convert_path_point_type(custom->pathdata.Types[i]);
if(custom->fill){
BeginPath(graphics->hdc);
PolyDraw(graphics->hdc, custpt, tp, count);
EndPath(graphics->hdc);
StrokeAndFillPath(graphics->hdc);
}
else
PolyDraw(graphics->hdc, custpt, tp, count);
custend:
heap_free(custptf);
heap_free(custpt);
heap_free(tp);
break;
default:
break;
}
if(!customstroke){
SelectObject(graphics->hdc, oldbrush);
SelectObject(graphics->hdc, oldpen);
DeleteObject(brush);
DeleteObject(pen);
}
}
/* Shortens the line by the given percent by changing x2, y2.
* If percent is > 1.0 then the line will change direction.
* If percent is negative it can lengthen the line. */
static void shorten_line_percent(REAL x1, REAL y1, REAL *x2, REAL *y2, REAL percent)
{
REAL dist, theta, dx, dy;
if((y1 == *y2) && (x1 == *x2))
return;
dist = sqrt((*x2 - x1) * (*x2 - x1) + (*y2 - y1) * (*y2 - y1)) * -percent;
theta = gdiplus_atan2((*y2 - y1), (*x2 - x1));
dx = cos(theta) * dist;
dy = sin(theta) * dist;
*x2 = *x2 + dx;
*y2 = *y2 + dy;
}
/* Shortens the line by the given amount by changing x2, y2.
* If the amount is greater than the distance, the line will become length 0.
* If the amount is negative, it can lengthen the line. */
static void shorten_line_amt(REAL x1, REAL y1, REAL *x2, REAL *y2, REAL amt)
{
REAL dx, dy, percent;
dx = *x2 - x1;
dy = *y2 - y1;
if(dx == 0 && dy == 0)
return;
percent = amt / sqrt(dx * dx + dy * dy);
if(percent >= 1.0){
*x2 = x1;
*y2 = y1;
return;
}
shorten_line_percent(x1, y1, x2, y2, percent);
}
/* Conducts a linear search to find the bezier points that will back off
* the endpoint of the curve by a distance of amt. Linear search works
* better than binary in this case because there are multiple solutions,
* and binary searches often find a bad one. I don't think this is what
* Windows does but short of rendering the bezier without GDI's help it's
* the best we can do. If rev then work from the start of the passed points
* instead of the end. */
static void shorten_bezier_amt(GpPointF * pt, REAL amt, BOOL rev)
{
GpPointF origpt[4];
REAL percent = 0.00, dx, dy, origx, origy, diff = -1.0;
INT i, first = 0, second = 1, third = 2, fourth = 3;
if(rev){
first = 3;
second = 2;
third = 1;
fourth = 0;
}
origx = pt[fourth].X;
origy = pt[fourth].Y;
memcpy(origpt, pt, sizeof(GpPointF) * 4);
for(i = 0; (i < MAX_ITERS) && (diff < amt); i++){
/* reset bezier points to original values */
memcpy(pt, origpt, sizeof(GpPointF) * 4);
/* Perform magic on bezier points. Order is important here.*/
shorten_line_percent(pt[third].X, pt[third].Y, &pt[fourth].X, &pt[fourth].Y, percent);
shorten_line_percent(pt[second].X, pt[second].Y, &pt[third].X, &pt[third].Y, percent);
shorten_line_percent(pt[third].X, pt[third].Y, &pt[fourth].X, &pt[fourth].Y, percent);
shorten_line_percent(pt[first].X, pt[first].Y, &pt[second].X, &pt[second].Y, percent);
shorten_line_percent(pt[second].X, pt[second].Y, &pt[third].X, &pt[third].Y, percent);
shorten_line_percent(pt[third].X, pt[third].Y, &pt[fourth].X, &pt[fourth].Y, percent);
dx = pt[fourth].X - origx;
dy = pt[fourth].Y - origy;
diff = sqrt(dx * dx + dy * dy);
percent += 0.0005 * amt;
}
}
/* Draws a combination of bezier curves and lines between points. */
static GpStatus draw_poly(GpGraphics *graphics, GpPen *pen, GDIPCONST GpPointF * pt,
GDIPCONST BYTE * types, INT count, BOOL caps)
{
POINT *pti = heap_alloc_zero(count * sizeof(POINT));
BYTE *tp = heap_alloc_zero(count);
GpPointF *ptcopy = heap_alloc_zero(count * sizeof(GpPointF));
INT i, j;
GpStatus status = GenericError;
if(!count){
status = Ok;
goto end;
}
if(!pti || !tp || !ptcopy){
status = OutOfMemory;
goto end;
}
for(i = 1; i < count; i++){
if((types[i] & PathPointTypePathTypeMask) == PathPointTypeBezier){
if((i + 2 >= count) || !(types[i + 1] & PathPointTypeBezier)
|| !(types[i + 2] & PathPointTypeBezier)){
ERR("Bad bezier points\n");
goto end;
}
i += 2;
}
}
memcpy(ptcopy, pt, count * sizeof(GpPointF));
/* If we are drawing caps, go through the points and adjust them accordingly,
* and draw the caps. */
if(caps){
switch(types[count - 1] & PathPointTypePathTypeMask){
case PathPointTypeBezier:
if(pen->endcap == LineCapArrowAnchor)
shorten_bezier_amt(&ptcopy[count - 4], pen->width, FALSE);
else if((pen->endcap == LineCapCustom) && pen->customend)
shorten_bezier_amt(&ptcopy[count - 4],
pen->width * pen->customend->inset, FALSE);
draw_cap(graphics, get_gdi_brush_color(pen->brush), pen->endcap, pen->width, pen->customend,
pt[count - 1].X - (ptcopy[count - 1].X - ptcopy[count - 2].X),
pt[count - 1].Y - (ptcopy[count - 1].Y - ptcopy[count - 2].Y),
pt[count - 1].X, pt[count - 1].Y);
break;
case PathPointTypeLine:
if(pen->endcap == LineCapArrowAnchor)
shorten_line_amt(ptcopy[count - 2].X, ptcopy[count - 2].Y,
&ptcopy[count - 1].X, &ptcopy[count - 1].Y,
pen->width);
else if((pen->endcap == LineCapCustom) && pen->customend)
shorten_line_amt(ptcopy[count - 2].X, ptcopy[count - 2].Y,
&ptcopy[count - 1].X, &ptcopy[count - 1].Y,
pen->customend->inset * pen->width);
draw_cap(graphics, get_gdi_brush_color(pen->brush), pen->endcap, pen->width, pen->customend,
pt[count - 2].X, pt[count - 2].Y, pt[count - 1].X,
pt[count - 1].Y);
break;
default:
ERR("Bad path last point\n");
goto end;
}
/* Find start of points */
for(j = 1; j < count && ((types[j] & PathPointTypePathTypeMask)
== PathPointTypeStart); j++);
switch(types[j] & PathPointTypePathTypeMask){
case PathPointTypeBezier:
if(pen->startcap == LineCapArrowAnchor)
shorten_bezier_amt(&ptcopy[j - 1], pen->width, TRUE);
else if((pen->startcap == LineCapCustom) && pen->customstart)
shorten_bezier_amt(&ptcopy[j - 1],
pen->width * pen->customstart->inset, TRUE);
draw_cap(graphics, get_gdi_brush_color(pen->brush), pen->startcap, pen->width, pen->customstart,
pt[j - 1].X - (ptcopy[j - 1].X - ptcopy[j].X),
pt[j - 1].Y - (ptcopy[j - 1].Y - ptcopy[j].Y),
pt[j - 1].X, pt[j - 1].Y);
break;
case PathPointTypeLine:
if(pen->startcap == LineCapArrowAnchor)
shorten_line_amt(ptcopy[j].X, ptcopy[j].Y,
&ptcopy[j - 1].X, &ptcopy[j - 1].Y,
pen->width);
else if((pen->startcap == LineCapCustom) && pen->customstart)
shorten_line_amt(ptcopy[j].X, ptcopy[j].Y,
&ptcopy[j - 1].X, &ptcopy[j - 1].Y,
pen->customstart->inset * pen->width);
draw_cap(graphics, get_gdi_brush_color(pen->brush), pen->startcap, pen->width, pen->customstart,
pt[j].X, pt[j].Y, pt[j - 1].X,
pt[j - 1].Y);
break;
default:
ERR("Bad path points\n");
goto end;
}
}
transform_and_round_points(graphics, pti, ptcopy, count);
for(i = 0; i < count; i++){
tp[i] = convert_path_point_type(types[i]);
}
PolyDraw(graphics->hdc, pti, tp, count);
status = Ok;
end:
heap_free(pti);
heap_free(ptcopy);
heap_free(tp);
return status;
}
GpStatus trace_path(GpGraphics *graphics, GpPath *path)
{
GpStatus result;
BeginPath(graphics->hdc);
result = draw_poly(graphics, NULL, path->pathdata.Points,
path->pathdata.Types, path->pathdata.Count, FALSE);
EndPath(graphics->hdc);
return result;
}
typedef enum GraphicsContainerType {
BEGIN_CONTAINER,
SAVE_GRAPHICS
} GraphicsContainerType;
typedef struct _GraphicsContainerItem {
struct list entry;
GraphicsContainer contid;
GraphicsContainerType type;
SmoothingMode smoothing;
CompositingQuality compqual;
InterpolationMode interpolation;
CompositingMode compmode;
TextRenderingHint texthint;
REAL scale;
GpUnit unit;
PixelOffsetMode pixeloffset;
UINT textcontrast;
GpMatrix worldtrans;
GpRegion* clip;
INT origin_x, origin_y;
} GraphicsContainerItem;
static GpStatus init_container(GraphicsContainerItem** container,
GDIPCONST GpGraphics* graphics, GraphicsContainerType type){
GpStatus sts;
*container = heap_alloc_zero(sizeof(GraphicsContainerItem));
if(!(*container))
return OutOfMemory;
(*container)->contid = graphics->contid + 1;
(*container)->type = type;
(*container)->smoothing = graphics->smoothing;
(*container)->compqual = graphics->compqual;
(*container)->interpolation = graphics->interpolation;
(*container)->compmode = graphics->compmode;
(*container)->texthint = graphics->texthint;
(*container)->scale = graphics->scale;
(*container)->unit = graphics->unit;
(*container)->textcontrast = graphics->textcontrast;
(*container)->pixeloffset = graphics->pixeloffset;
(*container)->origin_x = graphics->origin_x;
(*container)->origin_y = graphics->origin_y;
(*container)->worldtrans = graphics->worldtrans;
sts = GdipCloneRegion(graphics->clip, &(*container)->clip);
if(sts != Ok){
heap_free(*container);
*container = NULL;
return sts;
}
return Ok;
}
static void delete_container(GraphicsContainerItem* container)
{
GdipDeleteRegion(container->clip);
heap_free(container);
}
static GpStatus restore_container(GpGraphics* graphics,
GDIPCONST GraphicsContainerItem* container){
GpStatus sts;
GpRegion *newClip;
sts = GdipCloneRegion(container->clip, &newClip);
if(sts != Ok) return sts;
graphics->worldtrans = container->worldtrans;
GdipDeleteRegion(graphics->clip);
graphics->clip = newClip;
graphics->contid = container->contid - 1;
graphics->smoothing = container->smoothing;
graphics->compqual = container->compqual;
graphics->interpolation = container->interpolation;
graphics->compmode = container->compmode;
graphics->texthint = container->texthint;
graphics->scale = container->scale;
graphics->unit = container->unit;
graphics->textcontrast = container->textcontrast;
graphics->pixeloffset = container->pixeloffset;
graphics->origin_x = container->origin_x;
graphics->origin_y = container->origin_y;
return Ok;
}
static GpStatus get_graphics_bounds(GpGraphics* graphics, GpRectF* rect)
{
RECT wnd_rect;
GpStatus stat=Ok;
GpUnit unit;
if(graphics->hwnd) {
if(!GetClientRect(graphics->hwnd, &wnd_rect))
return GenericError;
rect->X = wnd_rect.left;
rect->Y = wnd_rect.top;
rect->Width = wnd_rect.right - wnd_rect.left;
rect->Height = wnd_rect.bottom - wnd_rect.top;
}else if (graphics->image){
stat = GdipGetImageBounds(graphics->image, rect, &unit);
if (stat == Ok && unit != UnitPixel)
FIXME("need to convert from unit %i\n", unit);
}else if (GetObjectType(graphics->hdc) == OBJ_MEMDC){
HBITMAP hbmp;
BITMAP bmp;
rect->X = 0;
rect->Y = 0;
hbmp = GetCurrentObject(graphics->hdc, OBJ_BITMAP);
if (hbmp && GetObjectW(hbmp, sizeof(bmp), &bmp))
{
rect->Width = bmp.bmWidth;
rect->Height = bmp.bmHeight;
}
else
{
/* FIXME: ??? */
rect->Width = 1;
rect->Height = 1;
}
}else{
rect->X = 0;
rect->Y = 0;
rect->Width = GetDeviceCaps(graphics->hdc, HORZRES);
rect->Height = GetDeviceCaps(graphics->hdc, VERTRES);
}
if (graphics->hdc)
{
POINT points[2];
points[0].x = rect->X;
points[0].y = rect->Y;
points[1].x = rect->X + rect->Width;
points[1].y = rect->Y + rect->Height;
DPtoLP(graphics->hdc, points, sizeof(points)/sizeof(points[0]));
rect->X = min(points[0].x, points[1].x);
rect->Y = min(points[0].y, points[1].y);
rect->Width = abs(points[1].x - points[0].x);
rect->Height = abs(points[1].y - points[0].y);
}
return stat;
}
/* on success, rgn will contain the region of the graphics object which
* is visible after clipping has been applied */
static GpStatus get_visible_clip_region(GpGraphics *graphics, GpRegion *rgn)
{
GpStatus stat;
GpRectF rectf;
GpRegion* tmp;
if((stat = get_graphics_bounds(graphics, &rectf)) != Ok)
return stat;
if((stat = GdipCreateRegion(&tmp)) != Ok)
return stat;
if((stat = GdipCombineRegionRect(tmp, &rectf, CombineModeReplace)) != Ok)
goto end;
if((stat = GdipCombineRegionRegion(tmp, graphics->clip, CombineModeIntersect)) != Ok)
goto end;
stat = GdipCombineRegionRegion(rgn, tmp, CombineModeReplace);
end:
GdipDeleteRegion(tmp);
return stat;
}
void get_log_fontW(const GpFont *font, GpGraphics *graphics, LOGFONTW *lf)
{
REAL height;
if (font->unit == UnitPixel)
{
height = units_to_pixels(font->emSize, graphics->unit, graphics->yres);
}
else
{
if (graphics->unit == UnitDisplay || graphics->unit == UnitPixel)
height = units_to_pixels(font->emSize, font->unit, graphics->xres);
else
height = units_to_pixels(font->emSize, font->unit, graphics->yres);
}
lf->lfHeight = -(height + 0.5);
lf->lfWidth = 0;
lf->lfEscapement = 0;
lf->lfOrientation = 0;
lf->lfWeight = font->otm.otmTextMetrics.tmWeight;
lf->lfItalic = font->otm.otmTextMetrics.tmItalic ? 1 : 0;
lf->lfUnderline = font->otm.otmTextMetrics.tmUnderlined ? 1 : 0;
lf->lfStrikeOut = font->otm.otmTextMetrics.tmStruckOut ? 1 : 0;
lf->lfCharSet = font->otm.otmTextMetrics.tmCharSet;
lf->lfOutPrecision = OUT_DEFAULT_PRECIS;
lf->lfClipPrecision = CLIP_DEFAULT_PRECIS;
lf->lfQuality = DEFAULT_QUALITY;
lf->lfPitchAndFamily = 0;
strcpyW(lf->lfFaceName, font->family->FamilyName);
}
static void get_font_hfont(GpGraphics *graphics, GDIPCONST GpFont *font,
GDIPCONST GpStringFormat *format, HFONT *hfont,
GDIPCONST GpMatrix *matrix)
{
HDC hdc = CreateCompatibleDC(0);
GpPointF pt[3];
REAL angle, rel_width, rel_height, font_height;
LOGFONTW lfw;
HFONT unscaled_font;
TEXTMETRICW textmet;
if (font->unit == UnitPixel || font->unit == UnitWorld)
font_height = font->emSize;
else
{
REAL unit_scale, res;
res = (graphics->unit == UnitDisplay || graphics->unit == UnitPixel) ? graphics->xres : graphics->yres;
unit_scale = units_scale(font->unit, graphics->unit, res);
font_height = font->emSize * unit_scale;
}
pt[0].X = 0.0;
pt[0].Y = 0.0;
pt[1].X = 1.0;
pt[1].Y = 0.0;
pt[2].X = 0.0;
pt[2].Y = 1.0;
if (matrix)
{
GpMatrix xform = *matrix;
GdipTransformMatrixPoints(&xform, pt, 3);
}
GdipTransformPoints(graphics, CoordinateSpaceDevice, CoordinateSpaceWorld, pt, 3);
angle = -gdiplus_atan2((pt[1].Y - pt[0].Y), (pt[1].X - pt[0].X));
rel_width = sqrt((pt[1].Y-pt[0].Y)*(pt[1].Y-pt[0].Y)+
(pt[1].X-pt[0].X)*(pt[1].X-pt[0].X));
rel_height = sqrt((pt[2].Y-pt[0].Y)*(pt[2].Y-pt[0].Y)+
(pt[2].X-pt[0].X)*(pt[2].X-pt[0].X));
get_log_fontW(font, graphics, &lfw);
lfw.lfHeight = -gdip_round(font_height * rel_height);
unscaled_font = CreateFontIndirectW(&lfw);
SelectObject(hdc, unscaled_font);
GetTextMetricsW(hdc, &textmet);
lfw.lfWidth = gdip_round(textmet.tmAveCharWidth * rel_width / rel_height);
lfw.lfEscapement = lfw.lfOrientation = gdip_round((angle / M_PI) * 1800.0);
*hfont = CreateFontIndirectW(&lfw);
DeleteDC(hdc);
DeleteObject(unscaled_font);
}
GpStatus WINGDIPAPI GdipCreateFromHDC(HDC hdc, GpGraphics **graphics)
{
TRACE("(%p, %p)\n", hdc, graphics);
return GdipCreateFromHDC2(hdc, NULL, graphics);
}
GpStatus WINGDIPAPI GdipCreateFromHDC2(HDC hdc, HANDLE hDevice, GpGraphics **graphics)
{
GpStatus retval;
HBITMAP hbitmap;
DIBSECTION dib;
TRACE("(%p, %p, %p)\n", hdc, hDevice, graphics);
if(hDevice != NULL)
FIXME("Don't know how to handle parameter hDevice\n");
if(hdc == NULL)
return OutOfMemory;
if(graphics == NULL)
return InvalidParameter;
*graphics = heap_alloc_zero(sizeof(GpGraphics));
if(!*graphics) return OutOfMemory;
GdipSetMatrixElements(&(*graphics)->worldtrans, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
if((retval = GdipCreateRegion(&(*graphics)->clip)) != Ok){
heap_free(*graphics);
return retval;
}
hbitmap = GetCurrentObject(hdc, OBJ_BITMAP);
if (hbitmap && GetObjectW(hbitmap, sizeof(dib), &dib) == sizeof(dib) &&
dib.dsBmih.biBitCount == 32 && dib.dsBmih.biCompression == BI_RGB)
{
(*graphics)->alpha_hdc = 1;
}
(*graphics)->hdc = hdc;
(*graphics)->hwnd = WindowFromDC(hdc);
(*graphics)->owndc = FALSE;
(*graphics)->smoothing = SmoothingModeDefault;
(*graphics)->compqual = CompositingQualityDefault;
(*graphics)->interpolation = InterpolationModeBilinear;
(*graphics)->pixeloffset = PixelOffsetModeDefault;
(*graphics)->compmode = CompositingModeSourceOver;
(*graphics)->unit = UnitDisplay;
(*graphics)->scale = 1.0;
(*graphics)->xres = GetDeviceCaps(hdc, LOGPIXELSX);
(*graphics)->yres = GetDeviceCaps(hdc, LOGPIXELSY);
(*graphics)->busy = FALSE;
(*graphics)->textcontrast = 4;
list_init(&(*graphics)->containers);
(*graphics)->contid = 0;
TRACE("<-- %p\n", *graphics);
return Ok;
}
GpStatus graphics_from_image(GpImage *image, GpGraphics **graphics)
{
GpStatus retval;
*graphics = heap_alloc_zero(sizeof(GpGraphics));
if(!*graphics) return OutOfMemory;
GdipSetMatrixElements(&(*graphics)->worldtrans, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
if((retval = GdipCreateRegion(&(*graphics)->clip)) != Ok){
heap_free(*graphics);
return retval;
}
(*graphics)->hdc = NULL;
(*graphics)->hwnd = NULL;
(*graphics)->owndc = FALSE;
(*graphics)->image = image;
/* We have to store the image type here because the image may be freed
* before GdipDeleteGraphics is called, and metafiles need special treatment. */
(*graphics)->image_type = image->type;
(*graphics)->smoothing = SmoothingModeDefault;
(*graphics)->compqual = CompositingQualityDefault;
(*graphics)->interpolation = InterpolationModeBilinear;
(*graphics)->pixeloffset = PixelOffsetModeDefault;
(*graphics)->compmode = CompositingModeSourceOver;
(*graphics)->unit = UnitDisplay;
(*graphics)->scale = 1.0;
(*graphics)->xres = image->xres;
(*graphics)->yres = image->yres;
(*graphics)->busy = FALSE;
(*graphics)->textcontrast = 4;
list_init(&(*graphics)->containers);
(*graphics)->contid = 0;
TRACE("<-- %p\n", *graphics);
return Ok;
}
GpStatus WINGDIPAPI GdipCreateFromHWND(HWND hwnd, GpGraphics **graphics)
{
GpStatus ret;
HDC hdc;
TRACE("(%p, %p)\n", hwnd, graphics);
hdc = GetDC(hwnd);
if((ret = GdipCreateFromHDC(hdc, graphics)) != Ok)
{
ReleaseDC(hwnd, hdc);
return ret;
}
(*graphics)->hwnd = hwnd;
(*graphics)->owndc = TRUE;
return Ok;
}
/* FIXME: no icm handling */
GpStatus WINGDIPAPI GdipCreateFromHWNDICM(HWND hwnd, GpGraphics **graphics)
{
TRACE("(%p, %p)\n", hwnd, graphics);
return GdipCreateFromHWND(hwnd, graphics);
}
GpStatus WINGDIPAPI GdipCreateStreamOnFile(GDIPCONST WCHAR * filename,
UINT access, IStream **stream)
{
DWORD dwMode;
HRESULT ret;
TRACE("(%s, %u, %p)\n", debugstr_w(filename), access, stream);
if(!stream || !filename)
return InvalidParameter;
if(access & GENERIC_WRITE)
dwMode = STGM_SHARE_DENY_WRITE | STGM_WRITE | STGM_CREATE;
else if(access & GENERIC_READ)
dwMode = STGM_SHARE_DENY_WRITE | STGM_READ | STGM_FAILIFTHERE;
else
return InvalidParameter;
ret = SHCreateStreamOnFileW(filename, dwMode, stream);
return hresult_to_status(ret);
}
GpStatus WINGDIPAPI GdipDeleteGraphics(GpGraphics *graphics)
{
GraphicsContainerItem *cont, *next;
GpStatus stat;
TRACE("(%p)\n", graphics);
if(!graphics) return InvalidParameter;
if(graphics->busy) return ObjectBusy;
if (graphics->image && graphics->image_type == ImageTypeMetafile)
{
stat = METAFILE_GraphicsDeleted((GpMetafile*)graphics->image);
if (stat != Ok)
return stat;
}
if(graphics->owndc)
ReleaseDC(graphics->hwnd, graphics->hdc);
LIST_FOR_EACH_ENTRY_SAFE(cont, next, &graphics->containers, GraphicsContainerItem, entry){
list_remove(&cont->entry);
delete_container(cont);
}
GdipDeleteRegion(graphics->clip);
/* Native returns ObjectBusy on the second free, instead of crashing as we'd
* do otherwise, but we can't have that in the test suite because it means
* accessing freed memory. */
graphics->busy = TRUE;
heap_free(graphics);
return Ok;
}
GpStatus WINGDIPAPI GdipDrawArc(GpGraphics *graphics, GpPen *pen, REAL x,
REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
{
GpStatus status;
GpPath *path;
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n", graphics, pen, x, y,
width, height, startAngle, sweepAngle);
if(!graphics || !pen || width <= 0 || height <= 0)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
status = GdipAddPathArc(path, x, y, width, height, startAngle, sweepAngle);
if (status == Ok)
status = GdipDrawPath(graphics, pen, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipDrawArcI(GpGraphics *graphics, GpPen *pen, INT x,
INT y, INT width, INT height, REAL startAngle, REAL sweepAngle)
{
TRACE("(%p, %p, %d, %d, %d, %d, %.2f, %.2f)\n", graphics, pen, x, y,
width, height, startAngle, sweepAngle);
return GdipDrawArc(graphics,pen,(REAL)x,(REAL)y,(REAL)width,(REAL)height,startAngle,sweepAngle);
}
GpStatus WINGDIPAPI GdipDrawBezier(GpGraphics *graphics, GpPen *pen, REAL x1,
REAL y1, REAL x2, REAL y2, REAL x3, REAL y3, REAL x4, REAL y4)
{
GpPointF pt[4];
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n", graphics, pen, x1, y1,
x2, y2, x3, y3, x4, y4);
if(!graphics || !pen)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
pt[0].X = x1;
pt[0].Y = y1;
pt[1].X = x2;
pt[1].Y = y2;
pt[2].X = x3;
pt[2].Y = y3;
pt[3].X = x4;
pt[3].Y = y4;
return GdipDrawBeziers(graphics, pen, pt, 4);
}
GpStatus WINGDIPAPI GdipDrawBezierI(GpGraphics *graphics, GpPen *pen, INT x1,
INT y1, INT x2, INT y2, INT x3, INT y3, INT x4, INT y4)
{
TRACE("(%p, %p, %d, %d, %d, %d, %d, %d, %d, %d)\n", graphics, pen, x1, y1,
x2, y2, x3, y3, x4, y4);
return GdipDrawBezier(graphics, pen, (REAL)x1, (REAL)y1, (REAL)x2, (REAL)y2, (REAL)x3, (REAL)y3, (REAL)x4, (REAL)y4);
}
GpStatus WINGDIPAPI GdipDrawBeziers(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPointF *points, INT count)
{
GpStatus status;
GpPath *path;
TRACE("(%p, %p, %p, %d)\n", graphics, pen, points, count);
if(!graphics || !pen || !points || (count <= 0))
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
status = GdipAddPathBeziers(path, points, count);
if (status == Ok)
status = GdipDrawPath(graphics, pen, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipDrawBeziersI(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPoint *points, INT count)
{
GpPointF *pts;
GpStatus ret;
INT i;
TRACE("(%p, %p, %p, %d)\n", graphics, pen, points, count);
if(!graphics || !pen || !points || (count <= 0))
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
pts = heap_alloc_zero(sizeof(GpPointF) * count);
if(!pts)
return OutOfMemory;
for(i = 0; i < count; i++){
pts[i].X = (REAL)points[i].X;
pts[i].Y = (REAL)points[i].Y;
}
ret = GdipDrawBeziers(graphics,pen,pts,count);
heap_free(pts);
return ret;
}
GpStatus WINGDIPAPI GdipDrawClosedCurve(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPointF *points, INT count)
{
TRACE("(%p, %p, %p, %d)\n", graphics, pen, points, count);
return GdipDrawClosedCurve2(graphics, pen, points, count, 1.0);
}
GpStatus WINGDIPAPI GdipDrawClosedCurveI(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPoint *points, INT count)
{
TRACE("(%p, %p, %p, %d)\n", graphics, pen, points, count);
return GdipDrawClosedCurve2I(graphics, pen, points, count, 1.0);
}
GpStatus WINGDIPAPI GdipDrawClosedCurve2(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPointF *points, INT count, REAL tension)
{
GpPath *path;
GpStatus status;
TRACE("(%p, %p, %p, %d, %.2f)\n", graphics, pen, points, count, tension);
if(!graphics || !pen || !points || count <= 0)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
status = GdipAddPathClosedCurve2(path, points, count, tension);
if (status == Ok)
status = GdipDrawPath(graphics, pen, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipDrawClosedCurve2I(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPoint *points, INT count, REAL tension)
{
GpPointF *ptf;
GpStatus stat;
INT i;
TRACE("(%p, %p, %p, %d, %.2f)\n", graphics, pen, points, count, tension);
if(!points || count <= 0)
return InvalidParameter;
ptf = heap_alloc_zero(sizeof(GpPointF)*count);
if(!ptf)
return OutOfMemory;
for(i = 0; i < count; i++){
ptf[i].X = (REAL)points[i].X;
ptf[i].Y = (REAL)points[i].Y;
}
stat = GdipDrawClosedCurve2(graphics, pen, ptf, count, tension);
heap_free(ptf);
return stat;
}
GpStatus WINGDIPAPI GdipDrawCurve(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPointF *points, INT count)
{
TRACE("(%p, %p, %p, %d)\n", graphics, pen, points, count);
return GdipDrawCurve2(graphics,pen,points,count,1.0);
}
GpStatus WINGDIPAPI GdipDrawCurveI(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPoint *points, INT count)
{
GpPointF *pointsF;
GpStatus ret;
INT i;
TRACE("(%p, %p, %p, %d)\n", graphics, pen, points, count);
if(!points)
return InvalidParameter;
pointsF = heap_alloc_zero(sizeof(GpPointF)*count);
if(!pointsF)
return OutOfMemory;
for(i = 0; i < count; i++){
pointsF[i].X = (REAL)points[i].X;
pointsF[i].Y = (REAL)points[i].Y;
}
ret = GdipDrawCurve(graphics,pen,pointsF,count);
heap_free(pointsF);
return ret;
}
/* Approximates cardinal spline with Bezier curves. */
GpStatus WINGDIPAPI GdipDrawCurve2(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPointF *points, INT count, REAL tension)
{
GpPath *path;
GpStatus status;
TRACE("(%p, %p, %p, %d, %.2f)\n", graphics, pen, points, count, tension);
if(!graphics || !pen)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if(count < 2)
return InvalidParameter;
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
status = GdipAddPathCurve2(path, points, count, tension);
if (status == Ok)
status = GdipDrawPath(graphics, pen, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipDrawCurve2I(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPoint *points, INT count, REAL tension)
{
GpPointF *pointsF;
GpStatus ret;
INT i;
TRACE("(%p, %p, %p, %d, %.2f)\n", graphics, pen, points, count, tension);
if(!points)
return InvalidParameter;
pointsF = heap_alloc_zero(sizeof(GpPointF)*count);
if(!pointsF)
return OutOfMemory;
for(i = 0; i < count; i++){
pointsF[i].X = (REAL)points[i].X;
pointsF[i].Y = (REAL)points[i].Y;
}
ret = GdipDrawCurve2(graphics,pen,pointsF,count,tension);
heap_free(pointsF);
return ret;
}
GpStatus WINGDIPAPI GdipDrawCurve3(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPointF *points, INT count, INT offset, INT numberOfSegments,
REAL tension)
{
TRACE("(%p, %p, %p, %d, %d, %d, %.2f)\n", graphics, pen, points, count, offset, numberOfSegments, tension);
if(offset >= count || numberOfSegments > count - offset - 1 || numberOfSegments <= 0){
return InvalidParameter;
}
return GdipDrawCurve2(graphics, pen, points + offset, numberOfSegments + 1, tension);
}
GpStatus WINGDIPAPI GdipDrawCurve3I(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpPoint *points, INT count, INT offset, INT numberOfSegments,
REAL tension)
{
TRACE("(%p, %p, %p, %d, %d, %d, %.2f)\n", graphics, pen, points, count, offset, numberOfSegments, tension);
if(count < 0){
return OutOfMemory;
}
if(offset >= count || numberOfSegments > count - offset - 1 || numberOfSegments <= 0){
return InvalidParameter;
}
return GdipDrawCurve2I(graphics, pen, points + offset, numberOfSegments + 1, tension);
}
GpStatus WINGDIPAPI GdipDrawEllipse(GpGraphics *graphics, GpPen *pen, REAL x,
REAL y, REAL width, REAL height)
{
GpPath *path;
GpStatus status;
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f)\n", graphics, pen, x, y, width, height);
if(!graphics || !pen)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
status = GdipAddPathEllipse(path, x, y, width, height);
if (status == Ok)
status = GdipDrawPath(graphics, pen, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipDrawEllipseI(GpGraphics *graphics, GpPen *pen, INT x,
INT y, INT width, INT height)
{
TRACE("(%p, %p, %d, %d, %d, %d)\n", graphics, pen, x, y, width, height);
return GdipDrawEllipse(graphics,pen,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
}
GpStatus WINGDIPAPI GdipDrawImage(GpGraphics *graphics, GpImage *image, REAL x, REAL y)
{
UINT width, height;
TRACE("(%p, %p, %.2f, %.2f)\n", graphics, image, x, y);
if(!graphics || !image)
return InvalidParameter;
GdipGetImageWidth(image, &width);
GdipGetImageHeight(image, &height);
return GdipDrawImagePointRect(graphics, image, x, y,
0.0, 0.0, (REAL)width, (REAL)height, UnitPixel);
}
GpStatus WINGDIPAPI GdipDrawImageI(GpGraphics *graphics, GpImage *image, INT x,
INT y)
{
TRACE("(%p, %p, %d, %d)\n", graphics, image, x, y);
return GdipDrawImage(graphics, image, (REAL)x, (REAL)y);
}
GpStatus WINGDIPAPI GdipDrawImagePointRect(GpGraphics *graphics, GpImage *image,
REAL x, REAL y, REAL srcx, REAL srcy, REAL srcwidth, REAL srcheight,
GpUnit srcUnit)
{
GpPointF points[3];
REAL scale_x, scale_y, width, height;
TRACE("(%p, %p, %f, %f, %f, %f, %f, %f, %d)\n", graphics, image, x, y, srcx, srcy, srcwidth, srcheight, srcUnit);
if (!graphics || !image) return InvalidParameter;
scale_x = units_scale(srcUnit, graphics->unit, graphics->xres);
scale_x *= graphics->xres / image->xres;
scale_y = units_scale(srcUnit, graphics->unit, graphics->yres);
scale_y *= graphics->yres / image->yres;
width = srcwidth * scale_x;
height = srcheight * scale_y;
points[0].X = points[2].X = x;
points[0].Y = points[1].Y = y;
points[1].X = x + width;
points[2].Y = y + height;
return GdipDrawImagePointsRect(graphics, image, points, 3, srcx, srcy,
srcwidth, srcheight, srcUnit, NULL, NULL, NULL);
}
GpStatus WINGDIPAPI GdipDrawImagePointRectI(GpGraphics *graphics, GpImage *image,
INT x, INT y, INT srcx, INT srcy, INT srcwidth, INT srcheight,
GpUnit srcUnit)
{
return GdipDrawImagePointRect(graphics, image, x, y, srcx, srcy, srcwidth, srcheight, srcUnit);
}
GpStatus WINGDIPAPI GdipDrawImagePoints(GpGraphics *graphics, GpImage *image,
GDIPCONST GpPointF *dstpoints, INT count)
{
UINT width, height;
TRACE("(%p, %p, %p, %d)\n", graphics, image, dstpoints, count);
if(!image)
return InvalidParameter;
GdipGetImageWidth(image, &width);
GdipGetImageHeight(image, &height);
return GdipDrawImagePointsRect(graphics, image, dstpoints, count, 0, 0,
width, height, UnitPixel, NULL, NULL, NULL);
}
GpStatus WINGDIPAPI GdipDrawImagePointsI(GpGraphics *graphics, GpImage *image,
GDIPCONST GpPoint *dstpoints, INT count)
{
GpPointF ptf[3];
TRACE("(%p, %p, %p, %d)\n", graphics, image, dstpoints, count);
if (count != 3 || !dstpoints)
return InvalidParameter;
ptf[0].X = (REAL)dstpoints[0].X;
ptf[0].Y = (REAL)dstpoints[0].Y;
ptf[1].X = (REAL)dstpoints[1].X;
ptf[1].Y = (REAL)dstpoints[1].Y;
ptf[2].X = (REAL)dstpoints[2].X;
ptf[2].Y = (REAL)dstpoints[2].Y;
return GdipDrawImagePoints(graphics, image, ptf, count);
}
static BOOL CALLBACK play_metafile_proc(EmfPlusRecordType record_type, unsigned int flags,
unsigned int dataSize, const unsigned char *pStr, void *userdata)
{
GdipPlayMetafileRecord(userdata, record_type, flags, dataSize, pStr);
return TRUE;
}
GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image,
GDIPCONST GpPointF *points, INT count, REAL srcx, REAL srcy, REAL srcwidth,
REAL srcheight, GpUnit srcUnit, GDIPCONST GpImageAttributes* imageAttributes,
DrawImageAbort callback, VOID * callbackData)
{
GpPointF ptf[4];
POINT pti[4];
GpStatus stat;
TRACE("(%p, %p, %p, %d, %f, %f, %f, %f, %d, %p, %p, %p)\n", graphics, image, points,
count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback,
callbackData);
if (count > 3)
return NotImplemented;
if(!graphics || !image || !points || count != 3)
return InvalidParameter;
TRACE("%s %s %s\n", debugstr_pointf(&points[0]), debugstr_pointf(&points[1]),
debugstr_pointf(&points[2]));
memcpy(ptf, points, 3 * sizeof(GpPointF));
/* Ensure source width/height is positive */
if (srcwidth < 0)
{
GpPointF tmp = ptf[1];
srcx = srcx + srcwidth;
srcwidth = -srcwidth;
ptf[2].X = ptf[2].X + ptf[1].X - ptf[0].X;
ptf[2].Y = ptf[2].Y + ptf[1].Y - ptf[0].Y;
ptf[1] = ptf[0];
ptf[0] = tmp;
}
if (srcheight < 0)
{
GpPointF tmp = ptf[2];
srcy = srcy + srcheight;
srcheight = -srcheight;
ptf[1].X = ptf[1].X + ptf[2].X - ptf[0].X;
ptf[1].Y = ptf[1].Y + ptf[2].Y - ptf[0].Y;
ptf[2] = ptf[0];
ptf[0] = tmp;
}
ptf[3].X = ptf[2].X + ptf[1].X - ptf[0].X;
ptf[3].Y = ptf[2].Y + ptf[1].Y - ptf[0].Y;
if (!srcwidth || !srcheight || (ptf[3].X == ptf[0].X && ptf[3].Y == ptf[0].Y))
return Ok;
transform_and_round_points(graphics, pti, ptf, 4);
TRACE("%s %s %s %s\n", wine_dbgstr_point(&pti[0]), wine_dbgstr_point(&pti[1]),
wine_dbgstr_point(&pti[2]), wine_dbgstr_point(&pti[3]));
srcx = units_to_pixels(srcx, srcUnit, image->xres);
srcy = units_to_pixels(srcy, srcUnit, image->yres);
srcwidth = units_to_pixels(srcwidth, srcUnit, image->xres);
srcheight = units_to_pixels(srcheight, srcUnit, image->yres);
TRACE("src pixels: %f,%f %fx%f\n", srcx, srcy, srcwidth, srcheight);
if (image->type == ImageTypeBitmap)
{
GpBitmap* bitmap = (GpBitmap*)image;
BOOL do_resampling = FALSE;
BOOL use_software = FALSE;
TRACE("graphics: %.2fx%.2f dpi, fmt %#x, scale %f, image: %.2fx%.2f dpi, fmt %#x, color %08x\n",
graphics->xres, graphics->yres,
graphics->image && graphics->image->type == ImageTypeBitmap ? ((GpBitmap *)graphics->image)->format : 0,
graphics->scale, image->xres, image->yres, bitmap->format,
imageAttributes ? imageAttributes->outside_color : 0);
if (ptf[1].Y != ptf[0].Y || ptf[2].X != ptf[0].X ||
ptf[1].X - ptf[0].X != srcwidth || ptf[2].Y - ptf[0].Y != srcheight ||
srcx < 0 || srcy < 0 ||
srcx + srcwidth > bitmap->width || srcy + srcheight > bitmap->height)
do_resampling = TRUE;
if (imageAttributes || graphics->alpha_hdc || do_resampling ||
(graphics->image && graphics->image->type == ImageTypeBitmap))
use_software = TRUE;
if (use_software)
{
RECT dst_area;
GpRectF graphics_bounds;
GpRect src_area;
int i, x, y, src_stride, dst_stride;
GpMatrix dst_to_src;
REAL m11, m12, m21, m22, mdx, mdy;
LPBYTE src_data, dst_data, dst_dyn_data=NULL;
BitmapData lockeddata;
InterpolationMode interpolation = graphics->interpolation;
PixelOffsetMode offset_mode = graphics->pixeloffset;
GpPointF dst_to_src_points[3] = {{0.0, 0.0}, {1.0, 0.0}, {0.0, 1.0}};
REAL x_dx, x_dy, y_dx, y_dy;
static const GpImageAttributes defaultImageAttributes = {WrapModeClamp, 0, FALSE};
if (!imageAttributes)
imageAttributes = &defaultImageAttributes;
dst_area.left = dst_area.right = pti[0].x;
dst_area.top = dst_area.bottom = pti[0].y;
for (i=1; i<4; i++)
{
if (dst_area.left > pti[i].x) dst_area.left = pti[i].x;
if (dst_area.right < pti[i].x) dst_area.right = pti[i].x;
if (dst_area.top > pti[i].y) dst_area.top = pti[i].y;
if (dst_area.bottom < pti[i].y) dst_area.bottom = pti[i].y;
}
stat = get_graphics_bounds(graphics, &graphics_bounds);
if (stat != Ok) return stat;
if (graphics_bounds.X > dst_area.left) dst_area.left = floorf(graphics_bounds.X);
if (graphics_bounds.Y > dst_area.top) dst_area.top = floorf(graphics_bounds.Y);
if (graphics_bounds.X + graphics_bounds.Width < dst_area.right) dst_area.right = ceilf(graphics_bounds.X + graphics_bounds.Width);
if (graphics_bounds.Y + graphics_bounds.Height < dst_area.bottom) dst_area.bottom = ceilf(graphics_bounds.Y + graphics_bounds.Height);
TRACE("dst_area: %s\n", wine_dbgstr_rect(&dst_area));
if (IsRectEmpty(&dst_area)) return Ok;
m11 = (ptf[1].X - ptf[0].X) / srcwidth;
m21 = (ptf[2].X - ptf[0].X) / srcheight;
mdx = ptf[0].X - m11 * srcx - m21 * srcy;
m12 = (ptf[1].Y - ptf[0].Y) / srcwidth;
m22 = (ptf[2].Y - ptf[0].Y) / srcheight;
mdy = ptf[0].Y - m12 * srcx - m22 * srcy;
GdipSetMatrixElements(&dst_to_src, m11, m12, m21, m22, mdx, mdy);
stat = GdipInvertMatrix(&dst_to_src);
if (stat != Ok) return stat;
if (do_resampling)
{
get_bitmap_sample_size(interpolation, imageAttributes->wrap,
bitmap, srcx, srcy, srcwidth, srcheight, &src_area);
}
else
{
/* Make sure src_area is equal in size to dst_area. */
src_area.X = srcx + dst_area.left - pti[0].x;
src_area.Y = srcy + dst_area.top - pti[0].y;
src_area.Width = dst_area.right - dst_area.left;
src_area.Height = dst_area.bottom - dst_area.top;
}
TRACE("src_area: %d x %d\n", src_area.Width, src_area.Height);
src_data = heap_alloc_zero(sizeof(ARGB) * src_area.Width * src_area.Height);
if (!src_data)
return OutOfMemory;
src_stride = sizeof(ARGB) * src_area.Width;
/* Read the bits we need from the source bitmap into a compatible buffer. */
lockeddata.Width = src_area.Width;
lockeddata.Height = src_area.Height;
lockeddata.Stride = src_stride;
lockeddata.Scan0 = src_data;
if (!do_resampling && bitmap->format == PixelFormat32bppPARGB)
lockeddata.PixelFormat = apply_image_attributes(imageAttributes, NULL, 0, 0, 0, ColorAdjustTypeBitmap, bitmap->format);
else
lockeddata.PixelFormat = PixelFormat32bppARGB;
stat = GdipBitmapLockBits(bitmap, &src_area, ImageLockModeRead|ImageLockModeUserInputBuf,
lockeddata.PixelFormat, &lockeddata);
if (stat == Ok)
stat = GdipBitmapUnlockBits(bitmap, &lockeddata);
if (stat != Ok)
{
heap_free(src_data);
return stat;
}
apply_image_attributes(imageAttributes, src_data,
src_area.Width, src_area.Height,
src_stride, ColorAdjustTypeBitmap, lockeddata.PixelFormat);
if (do_resampling)
{
/* Transform the bits as needed to the destination. */
dst_data = dst_dyn_data = heap_alloc_zero(sizeof(ARGB) * (dst_area.right - dst_area.left) * (dst_area.bottom - dst_area.top));
if (!dst_data)
{
heap_free(src_data);
return OutOfMemory;
}
dst_stride = sizeof(ARGB) * (dst_area.right - dst_area.left);
GdipTransformMatrixPoints(&dst_to_src, dst_to_src_points, 3);
x_dx = dst_to_src_points[1].X - dst_to_src_points[0].X;
x_dy = dst_to_src_points[1].Y - dst_to_src_points[0].Y;
y_dx = dst_to_src_points[2].X - dst_to_src_points[0].X;
y_dy = dst_to_src_points[2].Y - dst_to_src_points[0].Y;
for (x=dst_area.left; x<dst_area.right; x++)
{
for (y=dst_area.top; y<dst_area.bottom; y++)
{
GpPointF src_pointf;
ARGB *dst_color;
src_pointf.X = dst_to_src_points[0].X + x * x_dx + y * y_dx;
src_pointf.Y = dst_to_src_points[0].Y + x * x_dy + y * y_dy;
dst_color = (ARGB*)(dst_data + dst_stride * (y - dst_area.top) + sizeof(ARGB) * (x - dst_area.left));
if (src_pointf.X >= srcx && src_pointf.X < srcx + srcwidth && src_pointf.Y >= srcy && src_pointf.Y < srcy+srcheight)
*dst_color = resample_bitmap_pixel(&src_area, src_data, bitmap->width, bitmap->height, &src_pointf,
imageAttributes, interpolation, offset_mode);
else
*dst_color = 0;
}
}
}
else
{
dst_data = src_data;
dst_stride = src_stride;
}
stat = alpha_blend_pixels(graphics, dst_area.left, dst_area.top,
dst_data, dst_area.right - dst_area.left, dst_area.bottom - dst_area.top, dst_stride,
lockeddata.PixelFormat);
heap_free(src_data);
heap_free(dst_dyn_data);
return stat;
}
else
{
HDC hdc;
BOOL temp_hdc = FALSE, temp_bitmap = FALSE;
HBITMAP hbitmap, old_hbm=NULL;
HRGN hrgn;
INT save_state;
if (!(bitmap->format == PixelFormat16bppRGB555 ||
bitmap->format == PixelFormat24bppRGB ||
bitmap->format == PixelFormat32bppRGB ||
bitmap->format == PixelFormat32bppPARGB))
{
BITMAPINFOHEADER bih;
BYTE *temp_bits;
PixelFormat dst_format;
/* we can't draw a bitmap of this format directly */
hdc = CreateCompatibleDC(0);
temp_hdc = TRUE;
temp_bitmap = TRUE;
bih.biSize = sizeof(BITMAPINFOHEADER);
bih.biWidth = bitmap->width;
bih.biHeight = -bitmap->height;
bih.biPlanes = 1;
bih.biBitCount = 32;
bih.biCompression = BI_RGB;
bih.biSizeImage = 0;
bih.biXPelsPerMeter = 0;
bih.biYPelsPerMeter = 0;
bih.biClrUsed = 0;
bih.biClrImportant = 0;
hbitmap = CreateDIBSection(hdc, (BITMAPINFO*)&bih, DIB_RGB_COLORS,
(void**)&temp_bits, NULL, 0);
if (bitmap->format & (PixelFormatAlpha|PixelFormatPAlpha))
dst_format = PixelFormat32bppPARGB;
else
dst_format = PixelFormat32bppRGB;
convert_pixels(bitmap->width, bitmap->height,
bitmap->width*4, temp_bits, dst_format,
bitmap->stride, bitmap->bits, bitmap->format,
bitmap->image.palette);
}
else
{
if (bitmap->hbitmap)
hbitmap = bitmap->hbitmap;
else
{
GdipCreateHBITMAPFromBitmap(bitmap, &hbitmap, 0);
temp_bitmap = TRUE;
}
hdc = bitmap->hdc;
temp_hdc = (hdc == 0);
}
if (temp_hdc)
{
if (!hdc) hdc = CreateCompatibleDC(0);
old_hbm = SelectObject(hdc, hbitmap);
}
save_state = SaveDC(graphics->hdc);
stat = get_clip_hrgn(graphics, &hrgn);
if (stat == Ok && hrgn)
{
ExtSelectClipRgn(graphics->hdc, hrgn, RGN_AND);
DeleteObject(hrgn);
}
if (bitmap->format & (PixelFormatAlpha|PixelFormatPAlpha))
{
gdi_alpha_blend(graphics, pti[0].x, pti[0].y, pti[1].x - pti[0].x, pti[2].y - pti[0].y,
hdc, srcx, srcy, srcwidth, srcheight);
}
else
{
StretchBlt(graphics->hdc, pti[0].x, pti[0].y, pti[1].x-pti[0].x, pti[2].y-pti[0].y,
hdc, srcx, srcy, srcwidth, srcheight, SRCCOPY);
}
RestoreDC(graphics->hdc, save_state);
if (temp_hdc)
{
SelectObject(hdc, old_hbm);
DeleteDC(hdc);
}
if (temp_bitmap)
DeleteObject(hbitmap);
}
}
else if (image->type == ImageTypeMetafile && ((GpMetafile*)image)->hemf)
{
GpRectF rc;
rc.X = srcx;
rc.Y = srcy;
rc.Width = srcwidth;
rc.Height = srcheight;
return GdipEnumerateMetafileSrcRectDestPoints(graphics, (GpMetafile*)image,
points, count, &rc, srcUnit, play_metafile_proc, image, imageAttributes);
}
else
{
WARN("GpImage with nothing we can draw (metafile in wrong state?)\n");
return InvalidParameter;
}
return Ok;
}
GpStatus WINGDIPAPI GdipDrawImagePointsRectI(GpGraphics *graphics, GpImage *image,
GDIPCONST GpPoint *points, INT count, INT srcx, INT srcy, INT srcwidth,
INT srcheight, GpUnit srcUnit, GDIPCONST GpImageAttributes* imageAttributes,
DrawImageAbort callback, VOID * callbackData)
{
GpPointF pointsF[3];
INT i;
TRACE("(%p, %p, %p, %d, %d, %d, %d, %d, %d, %p, %p, %p)\n", graphics, image, points, count,
srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback,
callbackData);
if(!points || count!=3)
return InvalidParameter;
for(i = 0; i < count; i++){
pointsF[i].X = (REAL)points[i].X;
pointsF[i].Y = (REAL)points[i].Y;
}
return GdipDrawImagePointsRect(graphics, image, pointsF, count, (REAL)srcx, (REAL)srcy,
(REAL)srcwidth, (REAL)srcheight, srcUnit, imageAttributes,
callback, callbackData);
}
GpStatus WINGDIPAPI GdipDrawImageRectRect(GpGraphics *graphics, GpImage *image,
REAL dstx, REAL dsty, REAL dstwidth, REAL dstheight, REAL srcx, REAL srcy,
REAL srcwidth, REAL srcheight, GpUnit srcUnit,
GDIPCONST GpImageAttributes* imageattr, DrawImageAbort callback,
VOID * callbackData)
{
GpPointF points[3];
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %d, %p, %p, %p)\n",
graphics, image, dstx, dsty, dstwidth, dstheight, srcx, srcy,
srcwidth, srcheight, srcUnit, imageattr, callback, callbackData);
points[0].X = dstx;
points[0].Y = dsty;
points[1].X = dstx + dstwidth;
points[1].Y = dsty;
points[2].X = dstx;
points[2].Y = dsty + dstheight;
return GdipDrawImagePointsRect(graphics, image, points, 3, srcx, srcy,
srcwidth, srcheight, srcUnit, imageattr, callback, callbackData);
}
GpStatus WINGDIPAPI GdipDrawImageRectRectI(GpGraphics *graphics, GpImage *image,
INT dstx, INT dsty, INT dstwidth, INT dstheight, INT srcx, INT srcy,
INT srcwidth, INT srcheight, GpUnit srcUnit,
GDIPCONST GpImageAttributes* imageAttributes, DrawImageAbort callback,
VOID * callbackData)
{
GpPointF points[3];
TRACE("(%p, %p, %d, %d, %d, %d, %d, %d, %d, %d, %d, %p, %p, %p)\n",
graphics, image, dstx, dsty, dstwidth, dstheight, srcx, srcy,
srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData);
points[0].X = dstx;
points[0].Y = dsty;
points[1].X = dstx + dstwidth;
points[1].Y = dsty;
points[2].X = dstx;
points[2].Y = dsty + dstheight;
return GdipDrawImagePointsRect(graphics, image, points, 3, srcx, srcy,
srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData);
}
GpStatus WINGDIPAPI GdipDrawImageRect(GpGraphics *graphics, GpImage *image,
REAL x, REAL y, REAL width, REAL height)
{
RectF bounds;
GpUnit unit;
GpStatus ret;
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f)\n", graphics, image, x, y, width, height);
if(!graphics || !image)
return InvalidParameter;
ret = GdipGetImageBounds(image, &bounds, &unit);
if(ret != Ok)
return ret;
return GdipDrawImageRectRect(graphics, image, x, y, width, height,
bounds.X, bounds.Y, bounds.Width, bounds.Height,
unit, NULL, NULL, NULL);
}
GpStatus WINGDIPAPI GdipDrawImageRectI(GpGraphics *graphics, GpImage *image,
INT x, INT y, INT width, INT height)
{
TRACE("(%p, %p, %d, %d, %d, %d)\n", graphics, image, x, y, width, height);
return GdipDrawImageRect(graphics, image, (REAL)x, (REAL)y, (REAL)width, (REAL)height);
}
GpStatus WINGDIPAPI GdipDrawLine(GpGraphics *graphics, GpPen *pen, REAL x1,
REAL y1, REAL x2, REAL y2)
{
GpPointF pt[2];
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f)\n", graphics, pen, x1, y1, x2, y2);
if (!pen)
return InvalidParameter;
if (pen->unit == UnitPixel && pen->width <= 0.0)
return Ok;
pt[0].X = x1;
pt[0].Y = y1;
pt[1].X = x2;
pt[1].Y = y2;
return GdipDrawLines(graphics, pen, pt, 2);
}
GpStatus WINGDIPAPI GdipDrawLineI(GpGraphics *graphics, GpPen *pen, INT x1,
INT y1, INT x2, INT y2)
{
TRACE("(%p, %p, %d, %d, %d, %d)\n", graphics, pen, x1, y1, x2, y2);
return GdipDrawLine(graphics, pen, (REAL)x1, (REAL)y1, (REAL)x2, (REAL)y2);
}
GpStatus WINGDIPAPI GdipDrawLines(GpGraphics *graphics, GpPen *pen, GDIPCONST
GpPointF *points, INT count)
{
GpStatus status;
GpPath *path;
TRACE("(%p, %p, %p, %d)\n", graphics, pen, points, count);
if(!pen || !graphics || (count < 2))
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
status = GdipAddPathLine2(path, points, count);
if (status == Ok)
status = GdipDrawPath(graphics, pen, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipDrawLinesI(GpGraphics *graphics, GpPen *pen, GDIPCONST
GpPoint *points, INT count)
{
GpStatus retval;
GpPointF *ptf;
int i;
TRACE("(%p, %p, %p, %d)\n", graphics, pen, points, count);
ptf = heap_alloc_zero(count * sizeof(GpPointF));
if(!ptf) return OutOfMemory;
for(i = 0; i < count; i ++){
ptf[i].X = (REAL) points[i].X;
ptf[i].Y = (REAL) points[i].Y;
}
retval = GdipDrawLines(graphics, pen, ptf, count);
heap_free(ptf);
return retval;
}
static GpStatus GDI32_GdipDrawPath(GpGraphics *graphics, GpPen *pen, GpPath *path)
{
INT save_state;
GpStatus retval;
HRGN hrgn=NULL;
save_state = prepare_dc(graphics, pen);
retval = get_clip_hrgn(graphics, &hrgn);
if (retval != Ok)
goto end;
if (hrgn)
ExtSelectClipRgn(graphics->hdc, hrgn, RGN_AND);
retval = draw_poly(graphics, pen, path->pathdata.Points,
path->pathdata.Types, path->pathdata.Count, TRUE);
end:
restore_dc(graphics, save_state);
DeleteObject(hrgn);
return retval;
}
static GpStatus SOFTWARE_GdipDrawThinPath(GpGraphics *graphics, GpPen *pen, GpPath *path)
{
GpStatus stat;
GpPath* flat_path;
GpMatrix* transform;
GpRectF gp_bound_rect;
GpRect gp_output_area;
RECT output_area;
INT output_height, output_width;
DWORD *output_bits, *brush_bits=NULL;
int i;
static const BYTE static_dash_pattern[] = {1,1,1,0,1,0,1,0};
const BYTE *dash_pattern;
INT dash_pattern_size;
BYTE *dyn_dash_pattern = NULL;
stat = GdipClonePath(path, &flat_path);
if (stat != Ok)
return stat;
stat = GdipCreateMatrix(&transform);
if (stat == Ok)
{
stat = get_graphics_transform(graphics, CoordinateSpaceDevice,
CoordinateSpaceWorld, transform);
if (stat == Ok)
stat = GdipFlattenPath(flat_path, transform, 1.0);
GdipDeleteMatrix(transform);
}
/* estimate the output size in pixels, can be larger than necessary */
if (stat == Ok)
{
output_area.left = floorf(flat_path->pathdata.Points[0].X);
output_area.right = ceilf(flat_path->pathdata.Points[0].X);
output_area.top = floorf(flat_path->pathdata.Points[0].Y);
output_area.bottom = ceilf(flat_path->pathdata.Points[0].Y);
for (i=1; i<flat_path->pathdata.Count; i++)
{
REAL x, y;
x = flat_path->pathdata.Points[i].X;
y = flat_path->pathdata.Points[i].Y;
if (floorf(x) < output_area.left) output_area.left = floorf(x);
if (floorf(y) < output_area.top) output_area.top = floorf(y);
if (ceilf(x) > output_area.right) output_area.right = ceilf(x);
if (ceilf(y) > output_area.bottom) output_area.bottom = ceilf(y);
}
stat = get_graphics_bounds(graphics, &gp_bound_rect);
}
if (stat == Ok)
{
output_area.left = max(output_area.left, floorf(gp_bound_rect.X));
output_area.top = max(output_area.top, floorf(gp_bound_rect.Y));
output_area.right = min(output_area.right, ceilf(gp_bound_rect.X + gp_bound_rect.Width));
output_area.bottom = min(output_area.bottom, ceilf(gp_bound_rect.Y + gp_bound_rect.Height));
output_width = output_area.right - output_area.left + 1;
output_height = output_area.bottom - output_area.top + 1;
if (output_width <= 0 || output_height <= 0)
{
GdipDeletePath(flat_path);
return Ok;
}
gp_output_area.X = output_area.left;
gp_output_area.Y = output_area.top;
gp_output_area.Width = output_width;
gp_output_area.Height = output_height;
output_bits = heap_alloc_zero(output_width * output_height * sizeof(DWORD));
if (!output_bits)
stat = OutOfMemory;
}
if (stat == Ok)
{
if (pen->brush->bt != BrushTypeSolidColor)
{
/* allocate and draw brush output */
brush_bits = heap_alloc_zero(output_width * output_height * sizeof(DWORD));
if (brush_bits)
{
stat = brush_fill_pixels(graphics, pen->brush, brush_bits,
&gp_output_area, output_width);
}
else
stat = OutOfMemory;
}
if (stat == Ok)
{
/* convert dash pattern to bool array */
switch (pen->dash)
{
case DashStyleCustom:
{
dash_pattern_size = 0;
for (i=0; i < pen->numdashes; i++)
dash_pattern_size += gdip_round(pen->dashes[i]);
if (dash_pattern_size != 0)
{
dash_pattern = dyn_dash_pattern = heap_alloc(dash_pattern_size);
if (dyn_dash_pattern)
{
int j=0;
for (i=0; i < pen->numdashes; i++)
{
int k;
for (k=0; k < gdip_round(pen->dashes[i]); k++)
dyn_dash_pattern[j++] = (i&1)^1;
}
}
else
stat = OutOfMemory;
break;
}
/* else fall through */
}
case DashStyleSolid:
default:
dash_pattern = static_dash_pattern;
dash_pattern_size = 1;
break;
case DashStyleDash:
dash_pattern = static_dash_pattern;
dash_pattern_size = 4;
break;
case DashStyleDot:
dash_pattern = &static_dash_pattern[4];
dash_pattern_size = 2;
break;
case DashStyleDashDot:
dash_pattern = static_dash_pattern;
dash_pattern_size = 6;
break;
case DashStyleDashDotDot:
dash_pattern = static_dash_pattern;
dash_pattern_size = 8;
break;
}
}
if (stat == Ok)
{
/* trace path */
GpPointF subpath_start = flat_path->pathdata.Points[0];
INT prev_x = INT_MAX, prev_y = INT_MAX;
int dash_pos = dash_pattern_size - 1;
for (i=0; i < flat_path->pathdata.Count; i++)
{
BYTE type, type2;
GpPointF start_point, end_point;
GpPoint start_pointi, end_pointi;
type = flat_path->pathdata.Types[i];
if (i+1 < flat_path->pathdata.Count)
type2 = flat_path->pathdata.Types[i+1];
else
type2 = PathPointTypeStart;
start_point = flat_path->pathdata.Points[i];
if ((type & PathPointTypePathTypeMask) == PathPointTypeStart)
subpath_start = start_point;
if ((type & PathPointTypeCloseSubpath) == PathPointTypeCloseSubpath)
end_point = subpath_start;
else if ((type2 & PathPointTypePathTypeMask) == PathPointTypeStart)
continue;
else
end_point = flat_path->pathdata.Points[i+1];
start_pointi.X = floorf(start_point.X);
start_pointi.Y = floorf(start_point.Y);
end_pointi.X = floorf(end_point.X);
end_pointi.Y = floorf(end_point.Y);
/* draw line segment */
if (abs(start_pointi.Y - end_pointi.Y) > abs(start_pointi.X - end_pointi.X))
{
INT x, y, start_y, end_y, step;
if (start_pointi.Y < end_pointi.Y)
{
step = 1;
start_y = ceilf(start_point.Y) - output_area.top;
end_y = end_pointi.Y - output_area.top;
}
else
{
step = -1;
start_y = start_point.Y - output_area.top;
end_y = ceilf(end_point.Y) - output_area.top;
}
for (y=start_y; y != (end_y+step); y+=step)
{
x = gdip_round( start_point.X +
(end_point.X - start_point.X) * (y + output_area.top - start_point.Y) / (end_point.Y - start_point.Y) )
- output_area.left;
if (x == prev_x && y == prev_y)
continue;
prev_x = x;
prev_y = y;
dash_pos = (dash_pos + 1 == dash_pattern_size) ? 0 : dash_pos + 1;
if (!dash_pattern[dash_pos])
continue;
if (x < 0 || x >= output_width || y < 0 || y >= output_height)
continue;
if (brush_bits)
output_bits[x + y*output_width] = brush_bits[x + y*output_width];
else
output_bits[x + y*output_width] = ((GpSolidFill*)pen->brush)->color;
}
}
else
{
INT x, y, start_x, end_x, step;
if (start_pointi.X < end_pointi.X)
{
step = 1;
start_x = ceilf(start_point.X) - output_area.left;
end_x = end_pointi.X - output_area.left;
}
else
{
step = -1;
start_x = start_point.X - output_area.left;
end_x = ceilf(end_point.X) - output_area.left;
}
for (x=start_x; x != (end_x+step); x+=step)
{
y = gdip_round( start_point.Y +
(end_point.Y - start_point.Y) * (x + output_area.left - start_point.X) / (end_point.X - start_point.X) )
- output_area.top;
if (x == prev_x && y == prev_y)
continue;
prev_x = x;
prev_y = y;
dash_pos = (dash_pos + 1 == dash_pattern_size) ? 0 : dash_pos + 1;
if (!dash_pattern[dash_pos])
continue;
if (x < 0 || x >= output_width || y < 0 || y >= output_height)
continue;
if (brush_bits)
output_bits[x + y*output_width] = brush_bits[x + y*output_width];
else
output_bits[x + y*output_width] = ((GpSolidFill*)pen->brush)->color;
}
}
}
}
/* draw output image */
if (stat == Ok)
{
stat = alpha_blend_pixels(graphics, output_area.left, output_area.top,
(BYTE*)output_bits, output_width, output_height, output_width * 4,
PixelFormat32bppARGB);
}
heap_free(brush_bits);
heap_free(dyn_dash_pattern);
heap_free(output_bits);
}
GdipDeletePath(flat_path);
return stat;
}
static GpStatus SOFTWARE_GdipDrawPath(GpGraphics *graphics, GpPen *pen, GpPath *path)
{
GpStatus stat;
GpPath *wide_path;
GpMatrix *transform=NULL;
/* Check if the final pen thickness in pixels is too thin. */
if (pen->unit == UnitPixel)
{
if (pen->width < 1.415)
return SOFTWARE_GdipDrawThinPath(graphics, pen, path);
}
else
{
GpPointF points[3] = {{0,0}, {1,0}, {0,1}};
points[1].X = pen->width;
points[2].Y = pen->width;
stat = GdipTransformPoints(graphics, CoordinateSpaceDevice,
CoordinateSpaceWorld, points, 3);
if (stat != Ok)
return stat;
if (((points[1].X-points[0].X)*(points[1].X-points[0].X) +
(points[1].Y-points[0].Y)*(points[1].Y-points[0].Y) < 2.0001) &&
((points[2].X-points[0].X)*(points[2].X-points[0].X) +
(points[2].Y-points[0].Y)*(points[2].Y-points[0].Y) < 2.0001))
return SOFTWARE_GdipDrawThinPath(graphics, pen, path);
}
stat = GdipClonePath(path, &wide_path);
if (stat != Ok)
return stat;
if (pen->unit == UnitPixel)
{
/* We have to transform this to device coordinates to get the widths right. */
stat = GdipCreateMatrix(&transform);
if (stat == Ok)
stat = get_graphics_transform(graphics, CoordinateSpaceDevice,
CoordinateSpaceWorld, transform);
}
if (stat == Ok)
stat = GdipWidenPath(wide_path, pen, transform, 1.0);
if (pen->unit == UnitPixel)
{
/* Transform the path back to world coordinates */
if (stat == Ok)
stat = GdipInvertMatrix(transform);
if (stat == Ok)
stat = GdipTransformPath(wide_path, transform);
}
/* Actually draw the path */
if (stat == Ok)
stat = GdipFillPath(graphics, pen->brush, wide_path);
GdipDeleteMatrix(transform);
GdipDeletePath(wide_path);
return stat;
}
GpStatus WINGDIPAPI GdipDrawPath(GpGraphics *graphics, GpPen *pen, GpPath *path)
{
GpStatus retval;
TRACE("(%p, %p, %p)\n", graphics, pen, path);
if(!pen || !graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (path->pathdata.Count == 0)
return Ok;
if (!graphics->hdc)
retval = SOFTWARE_GdipDrawPath(graphics, pen, path);
else
retval = GDI32_GdipDrawPath(graphics, pen, path);
return retval;
}
GpStatus WINGDIPAPI GdipDrawPie(GpGraphics *graphics, GpPen *pen, REAL x,
REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
{
GpStatus status;
GpPath *path;
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n", graphics, pen, x, y,
width, height, startAngle, sweepAngle);
if(!graphics || !pen)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
status = GdipAddPathPie(path, x, y, width, height, startAngle, sweepAngle);
if (status == Ok)
status = GdipDrawPath(graphics, pen, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipDrawPieI(GpGraphics *graphics, GpPen *pen, INT x,
INT y, INT width, INT height, REAL startAngle, REAL sweepAngle)
{
TRACE("(%p, %p, %d, %d, %d, %d, %.2f, %.2f)\n", graphics, pen, x, y,
width, height, startAngle, sweepAngle);
return GdipDrawPie(graphics,pen,(REAL)x,(REAL)y,(REAL)width,(REAL)height,startAngle,sweepAngle);
}
GpStatus WINGDIPAPI GdipDrawRectangle(GpGraphics *graphics, GpPen *pen, REAL x,
REAL y, REAL width, REAL height)
{
GpStatus status;
GpPath *path;
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f)\n", graphics, pen, x, y, width, height);
if(!pen || !graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
status = GdipAddPathRectangle(path, x, y, width, height);
if (status == Ok)
status = GdipDrawPath(graphics, pen, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipDrawRectangleI(GpGraphics *graphics, GpPen *pen, INT x,
INT y, INT width, INT height)
{
TRACE("(%p, %p, %d, %d, %d, %d)\n", graphics, pen, x, y, width, height);
return GdipDrawRectangle(graphics,pen,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
}
GpStatus WINGDIPAPI GdipDrawRectangles(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpRectF* rects, INT count)
{
GpStatus status;
GpPath *path;
TRACE("(%p, %p, %p, %d)\n", graphics, pen, rects, count);
if(!graphics || !pen || !rects || count < 1)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
status = GdipAddPathRectangles(path, rects, count);
if (status == Ok)
status = GdipDrawPath(graphics, pen, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipDrawRectanglesI(GpGraphics *graphics, GpPen *pen,
GDIPCONST GpRect* rects, INT count)
{
GpRectF *rectsF;
GpStatus ret;
INT i;
TRACE("(%p, %p, %p, %d)\n", graphics, pen, rects, count);
if(!rects || count<=0)
return InvalidParameter;
rectsF = heap_alloc_zero(sizeof(GpRectF) * count);
if(!rectsF)
return OutOfMemory;
for(i = 0;i < count;i++){
rectsF[i].X = (REAL)rects[i].X;
rectsF[i].Y = (REAL)rects[i].Y;
rectsF[i].Width = (REAL)rects[i].Width;
rectsF[i].Height = (REAL)rects[i].Height;
}
ret = GdipDrawRectangles(graphics, pen, rectsF, count);
heap_free(rectsF);
return ret;
}
GpStatus WINGDIPAPI GdipFillClosedCurve2(GpGraphics *graphics, GpBrush *brush,
GDIPCONST GpPointF *points, INT count, REAL tension, GpFillMode fill)
{
GpPath *path;
GpStatus status;
TRACE("(%p, %p, %p, %d, %.2f, %d)\n", graphics, brush, points,
count, tension, fill);
if(!graphics || !brush || !points)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if(count == 1) /* Do nothing */
return Ok;
status = GdipCreatePath(fill, &path);
if (status != Ok) return status;
status = GdipAddPathClosedCurve2(path, points, count, tension);
if (status == Ok)
status = GdipFillPath(graphics, brush, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipFillClosedCurve2I(GpGraphics *graphics, GpBrush *brush,
GDIPCONST GpPoint *points, INT count, REAL tension, GpFillMode fill)
{
GpPointF *ptf;
GpStatus stat;
INT i;
TRACE("(%p, %p, %p, %d, %.2f, %d)\n", graphics, brush, points,
count, tension, fill);
if(!points || count == 0)
return InvalidParameter;
if(count == 1) /* Do nothing */
return Ok;
ptf = heap_alloc_zero(sizeof(GpPointF)*count);
if(!ptf)
return OutOfMemory;
for(i = 0;i < count;i++){
ptf[i].X = (REAL)points[i].X;
ptf[i].Y = (REAL)points[i].Y;
}
stat = GdipFillClosedCurve2(graphics, brush, ptf, count, tension, fill);
heap_free(ptf);
return stat;
}
GpStatus WINGDIPAPI GdipFillClosedCurve(GpGraphics *graphics, GpBrush *brush,
GDIPCONST GpPointF *points, INT count)
{
TRACE("(%p, %p, %p, %d)\n", graphics, brush, points, count);
return GdipFillClosedCurve2(graphics, brush, points, count,
0.5f, FillModeAlternate);
}
GpStatus WINGDIPAPI GdipFillClosedCurveI(GpGraphics *graphics, GpBrush *brush,
GDIPCONST GpPoint *points, INT count)
{
TRACE("(%p, %p, %p, %d)\n", graphics, brush, points, count);
return GdipFillClosedCurve2I(graphics, brush, points, count,
0.5f, FillModeAlternate);
}
GpStatus WINGDIPAPI GdipFillEllipse(GpGraphics *graphics, GpBrush *brush, REAL x,
REAL y, REAL width, REAL height)
{
GpStatus stat;
GpPath *path;
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f)\n", graphics, brush, x, y, width, height);
if(!graphics || !brush)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
stat = GdipCreatePath(FillModeAlternate, &path);
if (stat == Ok)
{
stat = GdipAddPathEllipse(path, x, y, width, height);
if (stat == Ok)
stat = GdipFillPath(graphics, brush, path);
GdipDeletePath(path);
}
return stat;
}
GpStatus WINGDIPAPI GdipFillEllipseI(GpGraphics *graphics, GpBrush *brush, INT x,
INT y, INT width, INT height)
{
TRACE("(%p, %p, %d, %d, %d, %d)\n", graphics, brush, x, y, width, height);
return GdipFillEllipse(graphics,brush,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
}
static GpStatus GDI32_GdipFillPath(GpGraphics *graphics, GpBrush *brush, GpPath *path)
{
INT save_state;
GpStatus retval;
HRGN hrgn=NULL;
if(!graphics->hdc || !brush_can_fill_path(brush))
return NotImplemented;
save_state = SaveDC(graphics->hdc);
EndPath(graphics->hdc);
SetPolyFillMode(graphics->hdc, (path->fill == FillModeAlternate ? ALTERNATE
: WINDING));
retval = get_clip_hrgn(graphics, &hrgn);
if (retval != Ok)
goto end;
if (hrgn)
ExtSelectClipRgn(graphics->hdc, hrgn, RGN_AND);
BeginPath(graphics->hdc);
retval = draw_poly(graphics, NULL, path->pathdata.Points,
path->pathdata.Types, path->pathdata.Count, FALSE);
if(retval != Ok)
goto end;
EndPath(graphics->hdc);
brush_fill_path(graphics, brush);
retval = Ok;
end:
RestoreDC(graphics->hdc, save_state);
DeleteObject(hrgn);
return retval;
}
static GpStatus SOFTWARE_GdipFillPath(GpGraphics *graphics, GpBrush *brush, GpPath *path)
{
GpStatus stat;
GpRegion *rgn;
if (!brush_can_fill_pixels(brush))
return NotImplemented;
/* FIXME: This could probably be done more efficiently without regions. */
stat = GdipCreateRegionPath(path, &rgn);
if (stat == Ok)
{
stat = GdipFillRegion(graphics, brush, rgn);
GdipDeleteRegion(rgn);
}
return stat;
}
GpStatus WINGDIPAPI GdipFillPath(GpGraphics *graphics, GpBrush *brush, GpPath *path)
{
GpStatus stat = NotImplemented;
TRACE("(%p, %p, %p)\n", graphics, brush, path);
if(!brush || !graphics || !path)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (!graphics->image && !graphics->alpha_hdc)
stat = GDI32_GdipFillPath(graphics, brush, path);
if (stat == NotImplemented)
stat = SOFTWARE_GdipFillPath(graphics, brush, path);
if (stat == NotImplemented)
{
FIXME("Not implemented for brushtype %i\n", brush->bt);
stat = Ok;
}
return stat;
}
GpStatus WINGDIPAPI GdipFillPie(GpGraphics *graphics, GpBrush *brush, REAL x,
REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
{
GpStatus stat;
GpPath *path;
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n",
graphics, brush, x, y, width, height, startAngle, sweepAngle);
if(!graphics || !brush)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
stat = GdipCreatePath(FillModeAlternate, &path);
if (stat == Ok)
{
stat = GdipAddPathPie(path, x, y, width, height, startAngle, sweepAngle);
if (stat == Ok)
stat = GdipFillPath(graphics, brush, path);
GdipDeletePath(path);
}
return stat;
}
GpStatus WINGDIPAPI GdipFillPieI(GpGraphics *graphics, GpBrush *brush, INT x,
INT y, INT width, INT height, REAL startAngle, REAL sweepAngle)
{
TRACE("(%p, %p, %d, %d, %d, %d, %.2f, %.2f)\n",
graphics, brush, x, y, width, height, startAngle, sweepAngle);
return GdipFillPie(graphics,brush,(REAL)x,(REAL)y,(REAL)width,(REAL)height,startAngle,sweepAngle);
}
GpStatus WINGDIPAPI GdipFillPolygon(GpGraphics *graphics, GpBrush *brush,
GDIPCONST GpPointF *points, INT count, GpFillMode fillMode)
{
GpStatus stat;
GpPath *path;
TRACE("(%p, %p, %p, %d, %d)\n", graphics, brush, points, count, fillMode);
if(!graphics || !brush || !points || !count)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
stat = GdipCreatePath(fillMode, &path);
if (stat == Ok)
{
stat = GdipAddPathPolygon(path, points, count);
if (stat == Ok)
stat = GdipFillPath(graphics, brush, path);
GdipDeletePath(path);
}
return stat;
}
GpStatus WINGDIPAPI GdipFillPolygonI(GpGraphics *graphics, GpBrush *brush,
GDIPCONST GpPoint *points, INT count, GpFillMode fillMode)
{
GpStatus stat;
GpPath *path;
TRACE("(%p, %p, %p, %d, %d)\n", graphics, brush, points, count, fillMode);
if(!graphics || !brush || !points || !count)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
stat = GdipCreatePath(fillMode, &path);
if (stat == Ok)
{
stat = GdipAddPathPolygonI(path, points, count);
if (stat == Ok)
stat = GdipFillPath(graphics, brush, path);
GdipDeletePath(path);
}
return stat;
}
GpStatus WINGDIPAPI GdipFillPolygon2(GpGraphics *graphics, GpBrush *brush,
GDIPCONST GpPointF *points, INT count)
{
TRACE("(%p, %p, %p, %d)\n", graphics, brush, points, count);
return GdipFillPolygon(graphics, brush, points, count, FillModeAlternate);
}
GpStatus WINGDIPAPI GdipFillPolygon2I(GpGraphics *graphics, GpBrush *brush,
GDIPCONST GpPoint *points, INT count)
{
TRACE("(%p, %p, %p, %d)\n", graphics, brush, points, count);
return GdipFillPolygonI(graphics, brush, points, count, FillModeAlternate);
}
GpStatus WINGDIPAPI GdipFillRectangle(GpGraphics *graphics, GpBrush *brush,
REAL x, REAL y, REAL width, REAL height)
{
GpRectF rect;
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f)\n", graphics, brush, x, y, width, height);
rect.X = x;
rect.Y = y;
rect.Width = width;
rect.Height = height;
return GdipFillRectangles(graphics, brush, &rect, 1);
}
GpStatus WINGDIPAPI GdipFillRectangleI(GpGraphics *graphics, GpBrush *brush,
INT x, INT y, INT width, INT height)
{
GpRectF rect;
TRACE("(%p, %p, %d, %d, %d, %d)\n", graphics, brush, x, y, width, height);
rect.X = (REAL)x;
rect.Y = (REAL)y;
rect.Width = (REAL)width;
rect.Height = (REAL)height;
return GdipFillRectangles(graphics, brush, &rect, 1);
}
GpStatus WINGDIPAPI GdipFillRectangles(GpGraphics *graphics, GpBrush *brush, GDIPCONST GpRectF *rects,
INT count)
{
GpStatus status;
GpPath *path;
TRACE("(%p, %p, %p, %d)\n", graphics, brush, rects, count);
if(!graphics || !brush || !rects || count <= 0)
return InvalidParameter;
if (graphics->image && graphics->image->type == ImageTypeMetafile)
{
status = METAFILE_FillRectangles((GpMetafile*)graphics->image, brush, rects, count);
/* FIXME: Add gdi32 drawing. */
return status;
}
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
status = GdipAddPathRectangles(path, rects, count);
if (status == Ok)
status = GdipFillPath(graphics, brush, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipFillRectanglesI(GpGraphics *graphics, GpBrush *brush, GDIPCONST GpRect *rects,
INT count)
{
GpRectF *rectsF;
GpStatus ret;
INT i;
TRACE("(%p, %p, %p, %d)\n", graphics, brush, rects, count);
if(!rects || count <= 0)
return InvalidParameter;
rectsF = heap_alloc_zero(sizeof(GpRectF)*count);
if(!rectsF)
return OutOfMemory;
for(i = 0; i < count; i++){
rectsF[i].X = (REAL)rects[i].X;
rectsF[i].Y = (REAL)rects[i].Y;
rectsF[i].X = (REAL)rects[i].Width;
rectsF[i].Height = (REAL)rects[i].Height;
}
ret = GdipFillRectangles(graphics,brush,rectsF,count);
heap_free(rectsF);
return ret;
}
static GpStatus GDI32_GdipFillRegion(GpGraphics* graphics, GpBrush* brush,
GpRegion* region)
{
INT save_state;
GpStatus status;
HRGN hrgn;
RECT rc;
if(!graphics->hdc || !brush_can_fill_path(brush))
return NotImplemented;
status = GdipGetRegionHRgn(region, graphics, &hrgn);
if(status != Ok)
return status;
save_state = SaveDC(graphics->hdc);
EndPath(graphics->hdc);
ExtSelectClipRgn(graphics->hdc, hrgn, RGN_AND);
DeleteObject(hrgn);
hrgn = NULL;
status = get_clip_hrgn(graphics, &hrgn);
if (status != Ok)
{
RestoreDC(graphics->hdc, save_state);
return status;
}
if (hrgn)
{
ExtSelectClipRgn(graphics->hdc, hrgn, RGN_AND);
DeleteObject(hrgn);
}
if (GetClipBox(graphics->hdc, &rc) != NULLREGION)
{
BeginPath(graphics->hdc);
Rectangle(graphics->hdc, rc.left, rc.top, rc.right, rc.bottom);
EndPath(graphics->hdc);
brush_fill_path(graphics, brush);
}
RestoreDC(graphics->hdc, save_state);
return Ok;
}
static GpStatus SOFTWARE_GdipFillRegion(GpGraphics *graphics, GpBrush *brush,
GpRegion* region)
{
GpStatus stat;
GpRegion *temp_region;
GpMatrix world_to_device;
GpRectF graphics_bounds;
DWORD *pixel_data;
HRGN hregion;
RECT bound_rect;
GpRect gp_bound_rect;
if (!brush_can_fill_pixels(brush))
return NotImplemented;
stat = get_graphics_bounds(graphics, &graphics_bounds);
if (stat == Ok)
stat = GdipCloneRegion(region, &temp_region);
if (stat == Ok)
{
stat = get_graphics_transform(graphics, CoordinateSpaceDevice,
CoordinateSpaceWorld, &world_to_device);
if (stat == Ok)
stat = GdipTransformRegion(temp_region, &world_to_device);
if (stat == Ok)
stat = GdipCombineRegionRect(temp_region, &graphics_bounds, CombineModeIntersect);
if (stat == Ok)
stat = GdipGetRegionHRgn(temp_region, NULL, &hregion);
GdipDeleteRegion(temp_region);
}
if (stat == Ok && GetRgnBox(hregion, &bound_rect) == NULLREGION)
{
DeleteObject(hregion);
return Ok;
}
if (stat == Ok)
{
gp_bound_rect.X = bound_rect.left;
gp_bound_rect.Y = bound_rect.top;
gp_bound_rect.Width = bound_rect.right - bound_rect.left;
gp_bound_rect.Height = bound_rect.bottom - bound_rect.top;
pixel_data = heap_alloc_zero(sizeof(*pixel_data) * gp_bound_rect.Width * gp_bound_rect.Height);
if (!pixel_data)
stat = OutOfMemory;
if (stat == Ok)
{
stat = brush_fill_pixels(graphics, brush, pixel_data,
&gp_bound_rect, gp_bound_rect.Width);
if (stat == Ok)
stat = alpha_blend_pixels_hrgn(graphics, gp_bound_rect.X,
gp_bound_rect.Y, (BYTE*)pixel_data, gp_bound_rect.Width,
gp_bound_rect.Height, gp_bound_rect.Width * 4, hregion,
PixelFormat32bppARGB);
heap_free(pixel_data);
}
DeleteObject(hregion);
}
return stat;
}
/*****************************************************************************
* GdipFillRegion [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipFillRegion(GpGraphics* graphics, GpBrush* brush,
GpRegion* region)
{
GpStatus stat = NotImplemented;
TRACE("(%p, %p, %p)\n", graphics, brush, region);
if (!(graphics && brush && region))
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (!graphics->image && !graphics->alpha_hdc)
stat = GDI32_GdipFillRegion(graphics, brush, region);
if (stat == NotImplemented)
stat = SOFTWARE_GdipFillRegion(graphics, brush, region);
if (stat == NotImplemented)
{
FIXME("not implemented for brushtype %i\n", brush->bt);
stat = Ok;
}
return stat;
}
GpStatus WINGDIPAPI GdipFlush(GpGraphics *graphics, GpFlushIntention intention)
{
TRACE("(%p,%u)\n", graphics, intention);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
/* We have no internal operation queue, so there's no need to clear it. */
if (graphics->hdc)
GdiFlush();
return Ok;
}
/*****************************************************************************
* GdipGetClipBounds [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipGetClipBounds(GpGraphics *graphics, GpRectF *rect)
{
GpStatus status;
GpRegion *clip;
TRACE("(%p, %p)\n", graphics, rect);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipCreateRegion(&clip);
if (status != Ok) return status;
status = GdipGetClip(graphics, clip);
if (status == Ok)
status = GdipGetRegionBounds(clip, graphics, rect);
GdipDeleteRegion(clip);
return status;
}
/*****************************************************************************
* GdipGetClipBoundsI [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipGetClipBoundsI(GpGraphics *graphics, GpRect *rect)
{
TRACE("(%p, %p)\n", graphics, rect);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
return GdipGetRegionBoundsI(graphics->clip, graphics, rect);
}
/* FIXME: Compositing mode is not used anywhere except the getter/setter. */
GpStatus WINGDIPAPI GdipGetCompositingMode(GpGraphics *graphics,
CompositingMode *mode)
{
TRACE("(%p, %p)\n", graphics, mode);
if(!graphics || !mode)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
*mode = graphics->compmode;
return Ok;
}
/* FIXME: Compositing quality is not used anywhere except the getter/setter. */
GpStatus WINGDIPAPI GdipGetCompositingQuality(GpGraphics *graphics,
CompositingQuality *quality)
{
TRACE("(%p, %p)\n", graphics, quality);
if(!graphics || !quality)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
*quality = graphics->compqual;
return Ok;
}
/* FIXME: Interpolation mode is not used anywhere except the getter/setter. */
GpStatus WINGDIPAPI GdipGetInterpolationMode(GpGraphics *graphics,
InterpolationMode *mode)
{
TRACE("(%p, %p)\n", graphics, mode);
if(!graphics || !mode)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
*mode = graphics->interpolation;
return Ok;
}
/* FIXME: Need to handle color depths less than 24bpp */
GpStatus WINGDIPAPI GdipGetNearestColor(GpGraphics *graphics, ARGB* argb)
{
FIXME("(%p, %p): Passing color unmodified\n", graphics, argb);
if(!graphics || !argb)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPageScale(GpGraphics *graphics, REAL *scale)
{
TRACE("(%p, %p)\n", graphics, scale);
if(!graphics || !scale)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
*scale = graphics->scale;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPageUnit(GpGraphics *graphics, GpUnit *unit)
{
TRACE("(%p, %p)\n", graphics, unit);
if(!graphics || !unit)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
*unit = graphics->unit;
return Ok;
}
/* FIXME: Pixel offset mode is not used anywhere except the getter/setter. */
GpStatus WINGDIPAPI GdipGetPixelOffsetMode(GpGraphics *graphics, PixelOffsetMode
*mode)
{
TRACE("(%p, %p)\n", graphics, mode);
if(!graphics || !mode)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
*mode = graphics->pixeloffset;
return Ok;
}
/* FIXME: Smoothing mode is not used anywhere except the getter/setter. */
GpStatus WINGDIPAPI GdipGetSmoothingMode(GpGraphics *graphics, SmoothingMode *mode)
{
TRACE("(%p, %p)\n", graphics, mode);
if(!graphics || !mode)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
*mode = graphics->smoothing;
return Ok;
}
GpStatus WINGDIPAPI GdipGetTextContrast(GpGraphics *graphics, UINT *contrast)
{
TRACE("(%p, %p)\n", graphics, contrast);
if(!graphics || !contrast)
return InvalidParameter;
*contrast = graphics->textcontrast;
return Ok;
}
/* FIXME: Text rendering hint is not used anywhere except the getter/setter. */
GpStatus WINGDIPAPI GdipGetTextRenderingHint(GpGraphics *graphics,
TextRenderingHint *hint)
{
TRACE("(%p, %p)\n", graphics, hint);
if(!graphics || !hint)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
*hint = graphics->texthint;
return Ok;
}
GpStatus WINGDIPAPI GdipGetVisibleClipBounds(GpGraphics *graphics, GpRectF *rect)
{
GpRegion *clip_rgn;
GpStatus stat;
GpMatrix device_to_world;
TRACE("(%p, %p)\n", graphics, rect);
if(!graphics || !rect)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
/* intersect window and graphics clipping regions */
if((stat = GdipCreateRegion(&clip_rgn)) != Ok)
return stat;
if((stat = get_visible_clip_region(graphics, clip_rgn)) != Ok)
goto cleanup;
/* transform to world coordinates */
if((stat = get_graphics_transform(graphics, CoordinateSpaceWorld, CoordinateSpaceDevice, &device_to_world)) != Ok)
goto cleanup;
if((stat = GdipTransformRegion(clip_rgn, &device_to_world)) != Ok)
goto cleanup;
/* get bounds of the region */
stat = GdipGetRegionBounds(clip_rgn, graphics, rect);
cleanup:
GdipDeleteRegion(clip_rgn);
return stat;
}
GpStatus WINGDIPAPI GdipGetVisibleClipBoundsI(GpGraphics *graphics, GpRect *rect)
{
GpRectF rectf;
GpStatus stat;
TRACE("(%p, %p)\n", graphics, rect);
if(!graphics || !rect)
return InvalidParameter;
if((stat = GdipGetVisibleClipBounds(graphics, &rectf)) == Ok)
{
rect->X = gdip_round(rectf.X);
rect->Y = gdip_round(rectf.Y);
rect->Width = gdip_round(rectf.Width);
rect->Height = gdip_round(rectf.Height);
}
return stat;
}
GpStatus WINGDIPAPI GdipGetWorldTransform(GpGraphics *graphics, GpMatrix *matrix)
{
TRACE("(%p, %p)\n", graphics, matrix);
if(!graphics || !matrix)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
*matrix = graphics->worldtrans;
return Ok;
}
GpStatus WINGDIPAPI GdipGraphicsClear(GpGraphics *graphics, ARGB color)
{
GpSolidFill *brush;
GpStatus stat;
GpRectF wnd_rect;
TRACE("(%p, %x)\n", graphics, color);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (graphics->image && graphics->image->type == ImageTypeMetafile)
return METAFILE_GraphicsClear((GpMetafile*)graphics->image, color);
if((stat = GdipCreateSolidFill(color, &brush)) != Ok)
return stat;
if((stat = GdipGetVisibleClipBounds(graphics, &wnd_rect)) != Ok){
GdipDeleteBrush((GpBrush*)brush);
return stat;
}
GdipFillRectangle(graphics, (GpBrush*)brush, wnd_rect.X, wnd_rect.Y,
wnd_rect.Width, wnd_rect.Height);
GdipDeleteBrush((GpBrush*)brush);
return Ok;
}
GpStatus WINGDIPAPI GdipIsClipEmpty(GpGraphics *graphics, BOOL *res)
{
TRACE("(%p, %p)\n", graphics, res);
if(!graphics || !res)
return InvalidParameter;
return GdipIsEmptyRegion(graphics->clip, graphics, res);
}
GpStatus WINGDIPAPI GdipIsVisiblePoint(GpGraphics *graphics, REAL x, REAL y, BOOL *result)
{
GpStatus stat;
GpRegion* rgn;
GpPointF pt;
TRACE("(%p, %.2f, %.2f, %p)\n", graphics, x, y, result);
if(!graphics || !result)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
pt.X = x;
pt.Y = y;
if((stat = GdipTransformPoints(graphics, CoordinateSpaceDevice,
CoordinateSpaceWorld, &pt, 1)) != Ok)
return stat;
if((stat = GdipCreateRegion(&rgn)) != Ok)
return stat;
if((stat = get_visible_clip_region(graphics, rgn)) != Ok)
goto cleanup;
stat = GdipIsVisibleRegionPoint(rgn, pt.X, pt.Y, graphics, result);
cleanup:
GdipDeleteRegion(rgn);
return stat;
}
GpStatus WINGDIPAPI GdipIsVisiblePointI(GpGraphics *graphics, INT x, INT y, BOOL *result)
{
return GdipIsVisiblePoint(graphics, (REAL)x, (REAL)y, result);
}
GpStatus WINGDIPAPI GdipIsVisibleRect(GpGraphics *graphics, REAL x, REAL y, REAL width, REAL height, BOOL *result)
{
GpStatus stat;
GpRegion* rgn;
GpPointF pts[2];
TRACE("(%p %.2f %.2f %.2f %.2f %p)\n", graphics, x, y, width, height, result);
if(!graphics || !result)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
pts[0].X = x;
pts[0].Y = y;
pts[1].X = x + width;
pts[1].Y = y + height;
if((stat = GdipTransformPoints(graphics, CoordinateSpaceDevice,
CoordinateSpaceWorld, pts, 2)) != Ok)
return stat;
pts[1].X -= pts[0].X;
pts[1].Y -= pts[0].Y;
if((stat = GdipCreateRegion(&rgn)) != Ok)
return stat;
if((stat = get_visible_clip_region(graphics, rgn)) != Ok)
goto cleanup;
stat = GdipIsVisibleRegionRect(rgn, pts[0].X, pts[0].Y, pts[1].X, pts[1].Y, graphics, result);
cleanup:
GdipDeleteRegion(rgn);
return stat;
}
GpStatus WINGDIPAPI GdipIsVisibleRectI(GpGraphics *graphics, INT x, INT y, INT width, INT height, BOOL *result)
{
return GdipIsVisibleRect(graphics, (REAL)x, (REAL)y, (REAL)width, (REAL)height, result);
}
GpStatus gdip_format_string(HDC hdc,
GDIPCONST WCHAR *string, INT length, GDIPCONST GpFont *font,
GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format, int ignore_empty_clip,
gdip_format_string_callback callback, void *user_data)
{
WCHAR* stringdup;
int sum = 0, height = 0, fit, fitcpy, i, j, lret, nwidth,
nheight, lineend, lineno = 0;
RectF bounds;
StringAlignment halign;
GpStatus stat = Ok;
SIZE size;
HotkeyPrefix hkprefix;
INT *hotkeyprefix_offsets=NULL;
INT hotkeyprefix_count=0;
INT hotkeyprefix_pos=0, hotkeyprefix_end_pos=0;
BOOL seen_prefix = FALSE;
GpStringFormat *dyn_format=NULL;
if(length == -1) length = lstrlenW(string);
stringdup = heap_alloc_zero((length + 1) * sizeof(WCHAR));
if(!stringdup) return OutOfMemory;
if (!format)
{
stat = GdipStringFormatGetGenericDefault(&dyn_format);
if (stat != Ok)
{
heap_free(stringdup);
return stat;
}
format = dyn_format;
}
nwidth = rect->Width;
nheight = rect->Height;
if (ignore_empty_clip)
{
if (!nwidth) nwidth = INT_MAX;
if (!nheight) nheight = INT_MAX;
}
hkprefix = format->hkprefix;
if (hkprefix == HotkeyPrefixShow)
{
for (i=0; i<length; i++)
{
if (string[i] == '&')
hotkeyprefix_count++;
}
}
if (hotkeyprefix_count)
hotkeyprefix_offsets = heap_alloc_zero(sizeof(INT) * hotkeyprefix_count);
hotkeyprefix_count = 0;
for(i = 0, j = 0; i < length; i++){
/* FIXME: This makes the indexes passed to callback inaccurate. */
if(!isprintW(string[i]) && (string[i] != '\n'))
continue;
/* FIXME: tabs should be handled using tabstops from stringformat */
if (string[i] == '\t')
continue;
if (seen_prefix && hkprefix == HotkeyPrefixShow && string[i] != '&')
hotkeyprefix_offsets[hotkeyprefix_count++] = j;
else if (!seen_prefix && hkprefix != HotkeyPrefixNone && string[i] == '&')
{
seen_prefix = TRUE;
continue;
}
seen_prefix = FALSE;
stringdup[j] = string[i];
j++;
}
length = j;
halign = format->align;
while(sum < length){
GetTextExtentExPointW(hdc, stringdup + sum, length - sum,
nwidth, &fit, NULL, &size);
fitcpy = fit;
if(fit == 0)
break;
for(lret = 0; lret < fit; lret++)
if(*(stringdup + sum + lret) == '\n')
break;
/* Line break code (may look strange, but it imitates windows). */
if(lret < fit)
lineend = fit = lret; /* this is not an off-by-one error */
else if(fit < (length - sum)){
if(*(stringdup + sum + fit) == ' ')
while(*(stringdup + sum + fit) == ' ')
fit++;
else
while(*(stringdup + sum + fit - 1) != ' '){
fit--;
if(*(stringdup + sum + fit) == '\t')
break;
if(fit == 0){
fit = fitcpy;
break;
}
}
lineend = fit;
while(*(stringdup + sum + lineend - 1) == ' ' ||
*(stringdup + sum + lineend - 1) == '\t')
lineend--;
}
else
lineend = fit;
GetTextExtentExPointW(hdc, stringdup + sum, lineend,
nwidth, &j, NULL, &size);
bounds.Width = size.cx;
if(height + size.cy > nheight)
{
if (format->attr & StringFormatFlagsLineLimit)
break;
bounds.Height = nheight - (height + size.cy);
}
else
bounds.Height = size.cy;
bounds.Y = rect->Y + height;
switch (halign)
{
case StringAlignmentNear:
default:
bounds.X = rect->X;
break;
case StringAlignmentCenter:
bounds.X = rect->X + (rect->Width/2) - (bounds.Width/2);
break;
case StringAlignmentFar:
bounds.X = rect->X + rect->Width - bounds.Width;
break;
}
for (hotkeyprefix_end_pos=hotkeyprefix_pos; hotkeyprefix_end_pos<hotkeyprefix_count; hotkeyprefix_end_pos++)
if (hotkeyprefix_offsets[hotkeyprefix_end_pos] >= sum + lineend)
break;
stat = callback(hdc, stringdup, sum, lineend,
font, rect, format, lineno, &bounds,
&hotkeyprefix_offsets[hotkeyprefix_pos],
hotkeyprefix_end_pos-hotkeyprefix_pos, user_data);
if (stat != Ok)
break;
sum += fit + (lret < fitcpy ? 1 : 0);
height += size.cy;
lineno++;
hotkeyprefix_pos = hotkeyprefix_end_pos;
if(height > nheight)
break;
/* Stop if this was a linewrap (but not if it was a linebreak). */
if ((lret == fitcpy) && (format->attr & StringFormatFlagsNoWrap))
break;
}
heap_free(stringdup);
heap_free(hotkeyprefix_offsets);
GdipDeleteStringFormat(dyn_format);
return stat;
}
struct measure_ranges_args {
GpRegion **regions;
REAL rel_width, rel_height;
};
static GpStatus measure_ranges_callback(HDC hdc,
GDIPCONST WCHAR *string, INT index, INT length, GDIPCONST GpFont *font,
GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
INT lineno, const RectF *bounds, INT *underlined_indexes,
INT underlined_index_count, void *user_data)
{
int i;
GpStatus stat = Ok;
struct measure_ranges_args *args = user_data;
for (i=0; i<format->range_count; i++)
{
INT range_start = max(index, format->character_ranges[i].First);
INT range_end = min(index+length, format->character_ranges[i].First+format->character_ranges[i].Length);
if (range_start < range_end)
{
GpRectF range_rect;
SIZE range_size;
range_rect.Y = bounds->Y / args->rel_height;
range_rect.Height = bounds->Height / args->rel_height;
GetTextExtentExPointW(hdc, string + index, range_start - index,
INT_MAX, NULL, NULL, &range_size);
range_rect.X = (bounds->X + range_size.cx) / args->rel_width;
GetTextExtentExPointW(hdc, string + index, range_end - index,
INT_MAX, NULL, NULL, &range_size);
range_rect.Width = (bounds->X + range_size.cx) / args->rel_width - range_rect.X;
stat = GdipCombineRegionRect(args->regions[i], &range_rect, CombineModeUnion);
if (stat != Ok)
break;
}
}
return stat;
}
GpStatus WINGDIPAPI GdipMeasureCharacterRanges(GpGraphics* graphics,
GDIPCONST WCHAR* string, INT length, GDIPCONST GpFont* font,
GDIPCONST RectF* layoutRect, GDIPCONST GpStringFormat *stringFormat,
INT regionCount, GpRegion** regions)
{
GpStatus stat;
int i;
HFONT gdifont, oldfont;
struct measure_ranges_args args;
HDC hdc, temp_hdc=NULL;
GpPointF pt[3];
RectF scaled_rect;
REAL margin_x;
TRACE("(%p %s %d %p %s %p %d %p)\n", graphics, debugstr_w(string),
length, font, debugstr_rectf(layoutRect), stringFormat, regionCount, regions);
if (!(graphics && string && font && layoutRect && stringFormat && regions))
return InvalidParameter;
if (regionCount < stringFormat->range_count)
return InvalidParameter;
if(!graphics->hdc)
{
hdc = temp_hdc = CreateCompatibleDC(0);
if (!temp_hdc) return OutOfMemory;
}
else
hdc = graphics->hdc;
if (stringFormat->attr)
TRACE("may be ignoring some format flags: attr %x\n", stringFormat->attr);
pt[0].X = 0.0;
pt[0].Y = 0.0;
pt[1].X = 1.0;
pt[1].Y = 0.0;
pt[2].X = 0.0;
pt[2].Y = 1.0;
GdipTransformPoints(graphics, CoordinateSpaceDevice, CoordinateSpaceWorld, pt, 3);
args.rel_width = sqrt((pt[1].Y-pt[0].Y)*(pt[1].Y-pt[0].Y)+
(pt[1].X-pt[0].X)*(pt[1].X-pt[0].X));
args.rel_height = sqrt((pt[2].Y-pt[0].Y)*(pt[2].Y-pt[0].Y)+
(pt[2].X-pt[0].X)*(pt[2].X-pt[0].X));
margin_x = stringFormat->generic_typographic ? 0.0 : font->emSize / 6.0;
margin_x *= units_scale(font->unit, graphics->unit, graphics->xres);
scaled_rect.X = (layoutRect->X + margin_x) * args.rel_width;
scaled_rect.Y = layoutRect->Y * args.rel_height;
scaled_rect.Width = layoutRect->Width * args.rel_width;
scaled_rect.Height = layoutRect->Height * args.rel_height;
if (scaled_rect.Width >= 1 << 23) scaled_rect.Width = 1 << 23;
if (scaled_rect.Height >= 1 << 23) scaled_rect.Height = 1 << 23;
get_font_hfont(graphics, font, stringFormat, &gdifont, NULL);
oldfont = SelectObject(hdc, gdifont);
for (i=0; i<stringFormat->range_count; i++)
{
stat = GdipSetEmpty(regions[i]);
if (stat != Ok)
return stat;
}
args.regions = regions;
stat = gdip_format_string(hdc, string, length, font, &scaled_rect, stringFormat,
(stringFormat->attr & StringFormatFlagsNoClip) != 0, measure_ranges_callback, &args);
SelectObject(hdc, oldfont);
DeleteObject(gdifont);
if (temp_hdc)
DeleteDC(temp_hdc);
return stat;
}
struct measure_string_args {
RectF *bounds;
INT *codepointsfitted;
INT *linesfilled;
REAL rel_width, rel_height;
};
static GpStatus measure_string_callback(HDC hdc,
GDIPCONST WCHAR *string, INT index, INT length, GDIPCONST GpFont *font,
GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
INT lineno, const RectF *bounds, INT *underlined_indexes,
INT underlined_index_count, void *user_data)
{
struct measure_string_args *args = user_data;
REAL new_width, new_height;
new_width = bounds->Width / args->rel_width;
new_height = (bounds->Height + bounds->Y) / args->rel_height - args->bounds->Y;
if (new_width > args->bounds->Width)
args->bounds->Width = new_width;
if (new_height > args->bounds->Height)
args->bounds->Height = new_height;
if (args->codepointsfitted)
*args->codepointsfitted = index + length;
if (args->linesfilled)
(*args->linesfilled)++;
return Ok;
}
/* Find the smallest rectangle that bounds the text when it is printed in rect
* according to the format options listed in format. If rect has 0 width and
* height, then just find the smallest rectangle that bounds the text when it's
* printed at location (rect->X, rect-Y). */
GpStatus WINGDIPAPI GdipMeasureString(GpGraphics *graphics,
GDIPCONST WCHAR *string, INT length, GDIPCONST GpFont *font,
GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format, RectF *bounds,
INT *codepointsfitted, INT *linesfilled)
{
HFONT oldfont, gdifont;
struct measure_string_args args;
HDC temp_hdc=NULL, hdc;
GpPointF pt[3];
RectF scaled_rect;
REAL margin_x;
INT lines, glyphs;
TRACE("(%p, %s, %i, %p, %s, %p, %p, %p, %p)\n", graphics,
debugstr_wn(string, length), length, font, debugstr_rectf(rect), format,
bounds, codepointsfitted, linesfilled);
if(!graphics || !string || !font || !rect || !bounds)
return InvalidParameter;
if(!graphics->hdc)
{
hdc = temp_hdc = CreateCompatibleDC(0);
if (!temp_hdc) return OutOfMemory;
}
else
hdc = graphics->hdc;
if(linesfilled) *linesfilled = 0;
if(codepointsfitted) *codepointsfitted = 0;
if(format)
TRACE("may be ignoring some format flags: attr %x\n", format->attr);
pt[0].X = 0.0;
pt[0].Y = 0.0;
pt[1].X = 1.0;
pt[1].Y = 0.0;
pt[2].X = 0.0;
pt[2].Y = 1.0;
GdipTransformPoints(graphics, CoordinateSpaceDevice, CoordinateSpaceWorld, pt, 3);
args.rel_width = sqrt((pt[1].Y-pt[0].Y)*(pt[1].Y-pt[0].Y)+
(pt[1].X-pt[0].X)*(pt[1].X-pt[0].X));
args.rel_height = sqrt((pt[2].Y-pt[0].Y)*(pt[2].Y-pt[0].Y)+
(pt[2].X-pt[0].X)*(pt[2].X-pt[0].X));
margin_x = (format && format->generic_typographic) ? 0.0 : font->emSize / 6.0;
margin_x *= units_scale(font->unit, graphics->unit, graphics->xres);
scaled_rect.X = (rect->X + margin_x) * args.rel_width;
scaled_rect.Y = rect->Y * args.rel_height;
scaled_rect.Width = rect->Width * args.rel_width;
scaled_rect.Height = rect->Height * args.rel_height;
if (scaled_rect.Width >= 0.5)
{
scaled_rect.Width -= margin_x * 2.0 * args.rel_width;
if (scaled_rect.Width < 0.5) return Ok; /* doesn't fit */
}
if (scaled_rect.Width >= 1 << 23) scaled_rect.Width = 1 << 23;
if (scaled_rect.Height >= 1 << 23) scaled_rect.Height = 1 << 23;
get_font_hfont(graphics, font, format, &gdifont, NULL);
oldfont = SelectObject(hdc, gdifont);
bounds->X = rect->X;
bounds->Y = rect->Y;
bounds->Width = 0.0;
bounds->Height = 0.0;
args.bounds = bounds;
args.codepointsfitted = &glyphs;
args.linesfilled = &lines;
lines = glyphs = 0;
gdip_format_string(hdc, string, length, font, &scaled_rect, format, TRUE,
measure_string_callback, &args);
if (linesfilled) *linesfilled = lines;
if (codepointsfitted) *codepointsfitted = glyphs;
if (lines)
bounds->Width += margin_x * 2.0;
SelectObject(hdc, oldfont);
DeleteObject(gdifont);
if (temp_hdc)
DeleteDC(temp_hdc);
return Ok;
}
struct draw_string_args {
GpGraphics *graphics;
GDIPCONST GpBrush *brush;
REAL x, y, rel_width, rel_height, ascent;
};
static GpStatus draw_string_callback(HDC hdc,
GDIPCONST WCHAR *string, INT index, INT length, GDIPCONST GpFont *font,
GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
INT lineno, const RectF *bounds, INT *underlined_indexes,
INT underlined_index_count, void *user_data)
{
struct draw_string_args *args = user_data;
PointF position;
GpStatus stat;
position.X = args->x + bounds->X / args->rel_width;
position.Y = args->y + bounds->Y / args->rel_height + args->ascent;
stat = draw_driver_string(args->graphics, &string[index], length, font, format,
args->brush, &position,
DriverStringOptionsCmapLookup|DriverStringOptionsRealizedAdvance, NULL);
if (stat == Ok && underlined_index_count)
{
OUTLINETEXTMETRICW otm;
REAL underline_y, underline_height;
int i;
GetOutlineTextMetricsW(hdc, sizeof(otm), &otm);
underline_height = otm.otmsUnderscoreSize / args->rel_height;
underline_y = position.Y - otm.otmsUnderscorePosition / args->rel_height - underline_height / 2;
for (i=0; i<underlined_index_count; i++)
{
REAL start_x, end_x;
SIZE text_size;
INT ofs = underlined_indexes[i] - index;
GetTextExtentExPointW(hdc, string + index, ofs, INT_MAX, NULL, NULL, &text_size);
start_x = text_size.cx / args->rel_width;
GetTextExtentExPointW(hdc, string + index, ofs+1, INT_MAX, NULL, NULL, &text_size);
end_x = text_size.cx / args->rel_width;
GdipFillRectangle(args->graphics, (GpBrush*)args->brush, position.X+start_x, underline_y, end_x-start_x, underline_height);
}
}
return stat;
}
GpStatus WINGDIPAPI GdipDrawString(GpGraphics *graphics, GDIPCONST WCHAR *string,
INT length, GDIPCONST GpFont *font, GDIPCONST RectF *rect,
GDIPCONST GpStringFormat *format, GDIPCONST GpBrush *brush)
{
HRGN rgn = NULL;
HFONT gdifont;
GpPointF pt[3], rectcpy[4];
POINT corners[4];
REAL rel_width, rel_height, margin_x;
INT save_state, format_flags = 0;
REAL offsety = 0.0;
struct draw_string_args args;
RectF scaled_rect;
HDC hdc, temp_hdc=NULL;
TEXTMETRICW textmetric;
TRACE("(%p, %s, %i, %p, %s, %p, %p)\n", graphics, debugstr_wn(string, length),
length, font, debugstr_rectf(rect), format, brush);
if(!graphics || !string || !font || !brush || !rect)
return InvalidParameter;
if(graphics->hdc)
{
hdc = graphics->hdc;
}
else
{
hdc = temp_hdc = CreateCompatibleDC(0);
}
if(format){
TRACE("may be ignoring some format flags: attr %x\n", format->attr);
format_flags = format->attr;
/* Should be no need to explicitly test for StringAlignmentNear as
* that is default behavior if no alignment is passed. */
if(format->vertalign != StringAlignmentNear){
RectF bounds, in_rect = *rect;
in_rect.Height = 0.0; /* avoid height clipping */
GdipMeasureString(graphics, string, length, font, &in_rect, format, &bounds, 0, 0);
TRACE("bounds %s\n", debugstr_rectf(&bounds));
if(format->vertalign == StringAlignmentCenter)
offsety = (rect->Height - bounds.Height) / 2;
else if(format->vertalign == StringAlignmentFar)
offsety = (rect->Height - bounds.Height);
}
TRACE("vertical align %d, offsety %f\n", format->vertalign, offsety);
}
save_state = SaveDC(hdc);
pt[0].X = 0.0;
pt[0].Y = 0.0;
pt[1].X = 1.0;
pt[1].Y = 0.0;
pt[2].X = 0.0;
pt[2].Y = 1.0;
GdipTransformPoints(graphics, CoordinateSpaceDevice, CoordinateSpaceWorld, pt, 3);
rel_width = sqrt((pt[1].Y-pt[0].Y)*(pt[1].Y-pt[0].Y)+
(pt[1].X-pt[0].X)*(pt[1].X-pt[0].X));
rel_height = sqrt((pt[2].Y-pt[0].Y)*(pt[2].Y-pt[0].Y)+
(pt[2].X-pt[0].X)*(pt[2].X-pt[0].X));
rectcpy[3].X = rectcpy[0].X = rect->X;
rectcpy[1].Y = rectcpy[0].Y = rect->Y;
rectcpy[2].X = rectcpy[1].X = rect->X + rect->Width;
rectcpy[3].Y = rectcpy[2].Y = rect->Y + rect->Height;
transform_and_round_points(graphics, corners, rectcpy, 4);
margin_x = (format && format->generic_typographic) ? 0.0 : font->emSize / 6.0;
margin_x *= units_scale(font->unit, graphics->unit, graphics->xres);
scaled_rect.X = margin_x * rel_width;
scaled_rect.Y = 0.0;
scaled_rect.Width = rel_width * rect->Width;
scaled_rect.Height = rel_height * rect->Height;
if (scaled_rect.Width >= 0.5)
{
scaled_rect.Width -= margin_x * 2.0 * rel_width;
if (scaled_rect.Width < 0.5) return Ok; /* doesn't fit */
}
if (scaled_rect.Width >= 1 << 23) scaled_rect.Width = 1 << 23;
if (scaled_rect.Height >= 1 << 23) scaled_rect.Height = 1 << 23;
if (!(format_flags & StringFormatFlagsNoClip) &&
scaled_rect.Width != 1 << 23 && scaled_rect.Height != 1 << 23 &&
rect->Width > 0.0 && rect->Height > 0.0)
{
/* FIXME: If only the width or only the height is 0, we should probably still clip */
rgn = CreatePolygonRgn(corners, 4, ALTERNATE);
SelectClipRgn(hdc, rgn);
}
get_font_hfont(graphics, font, format, &gdifont, NULL);
SelectObject(hdc, gdifont);
args.graphics = graphics;
args.brush = brush;
args.x = rect->X;
args.y = rect->Y + offsety;
args.rel_width = rel_width;
args.rel_height = rel_height;
GetTextMetricsW(hdc, &textmetric);
args.ascent = textmetric.tmAscent / rel_height;
gdip_format_string(hdc, string, length, font, &scaled_rect, format, TRUE,
draw_string_callback, &args);
DeleteObject(rgn);
DeleteObject(gdifont);
RestoreDC(hdc, save_state);
DeleteDC(temp_hdc);
return Ok;
}
GpStatus WINGDIPAPI GdipResetClip(GpGraphics *graphics)
{
TRACE("(%p)\n", graphics);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
return GdipSetInfinite(graphics->clip);
}
GpStatus WINGDIPAPI GdipResetWorldTransform(GpGraphics *graphics)
{
GpStatus stat;
TRACE("(%p)\n", graphics);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (graphics->image && graphics->image->type == ImageTypeMetafile) {
stat = METAFILE_ResetWorldTransform((GpMetafile*)graphics->image);
if (stat != Ok)
return stat;
}
return GdipSetMatrixElements(&graphics->worldtrans, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
}
GpStatus WINGDIPAPI GdipRotateWorldTransform(GpGraphics *graphics, REAL angle,
GpMatrixOrder order)
{
GpStatus stat;
TRACE("(%p, %.2f, %d)\n", graphics, angle, order);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (graphics->image && graphics->image->type == ImageTypeMetafile) {
stat = METAFILE_RotateWorldTransform((GpMetafile*)graphics->image, angle, order);
if (stat != Ok)
return stat;
}
return GdipRotateMatrix(&graphics->worldtrans, angle, order);
}
static GpStatus begin_container(GpGraphics *graphics,
GraphicsContainerType type, GraphicsContainer *state)
{
GraphicsContainerItem *container;
GpStatus sts;
if(!graphics || !state)
return InvalidParameter;
sts = init_container(&container, graphics, type);
if(sts != Ok)
return sts;
list_add_head(&graphics->containers, &container->entry);
*state = graphics->contid = container->contid;
if (graphics->image && graphics->image->type == ImageTypeMetafile) {
if (type == BEGIN_CONTAINER)
METAFILE_BeginContainerNoParams((GpMetafile*)graphics->image, container->contid);
else
METAFILE_SaveGraphics((GpMetafile*)graphics->image, container->contid);
}
return Ok;
}
GpStatus WINGDIPAPI GdipSaveGraphics(GpGraphics *graphics, GraphicsState *state)
{
TRACE("(%p, %p)\n", graphics, state);
return begin_container(graphics, SAVE_GRAPHICS, state);
}
GpStatus WINGDIPAPI GdipBeginContainer2(GpGraphics *graphics,
GraphicsContainer *state)
{
TRACE("(%p, %p)\n", graphics, state);
return begin_container(graphics, BEGIN_CONTAINER, state);
}
GpStatus WINGDIPAPI GdipBeginContainer(GpGraphics *graphics, GDIPCONST GpRectF *dstrect, GDIPCONST GpRectF *srcrect, GpUnit unit, GraphicsContainer *state)
{
GraphicsContainerItem *container;
GpMatrix transform;
GpStatus stat;
GpRectF scaled_srcrect;
REAL scale_x, scale_y;
TRACE("(%p, %s, %s, %d, %p)\n", graphics, debugstr_rectf(dstrect), debugstr_rectf(srcrect), unit, state);
if(!graphics || !dstrect || !srcrect || unit < UnitPixel || unit > UnitMillimeter || !state)
return InvalidParameter;
stat = init_container(&container, graphics, BEGIN_CONTAINER);
if(stat != Ok)
return stat;
list_add_head(&graphics->containers, &container->entry);
*state = graphics->contid = container->contid;
scale_x = units_to_pixels(1.0, unit, graphics->xres);
scale_y = units_to_pixels(1.0, unit, graphics->yres);
scaled_srcrect.X = scale_x * srcrect->X;
scaled_srcrect.Y = scale_y * srcrect->Y;
scaled_srcrect.Width = scale_x * srcrect->Width;
scaled_srcrect.Height = scale_y * srcrect->Height;
transform.matrix[0] = dstrect->Width / scaled_srcrect.Width;
transform.matrix[1] = 0.0;
transform.matrix[2] = 0.0;
transform.matrix[3] = dstrect->Height / scaled_srcrect.Height;
transform.matrix[4] = dstrect->X - scaled_srcrect.X;
transform.matrix[5] = dstrect->Y - scaled_srcrect.Y;
GdipMultiplyMatrix(&graphics->worldtrans, &transform, MatrixOrderPrepend);
if (graphics->image && graphics->image->type == ImageTypeMetafile) {
METAFILE_BeginContainer((GpMetafile*)graphics->image, dstrect, srcrect, unit, container->contid);
}
return Ok;
}
GpStatus WINGDIPAPI GdipBeginContainerI(GpGraphics *graphics, GDIPCONST GpRect *dstrect, GDIPCONST GpRect *srcrect, GpUnit unit, GraphicsContainer *state)
{
GpRectF dstrectf, srcrectf;
TRACE("(%p, %p, %p, %d, %p)\n", graphics, dstrect, srcrect, unit, state);
if (!dstrect || !srcrect)
return InvalidParameter;
dstrectf.X = dstrect->X;
dstrectf.Y = dstrect->Y;
dstrectf.Width = dstrect->Width;
dstrectf.Height = dstrect->Height;
srcrectf.X = srcrect->X;
srcrectf.Y = srcrect->Y;
srcrectf.Width = srcrect->Width;
srcrectf.Height = srcrect->Height;
return GdipBeginContainer(graphics, &dstrectf, &srcrectf, unit, state);
}
GpStatus WINGDIPAPI GdipComment(GpGraphics *graphics, UINT sizeData, GDIPCONST BYTE *data)
{
FIXME("(%p, %d, %p): stub\n", graphics, sizeData, data);
return NotImplemented;
}
static GpStatus end_container(GpGraphics *graphics, GraphicsContainerType type,
GraphicsContainer state)
{
GpStatus sts;
GraphicsContainerItem *container, *container2;
if(!graphics)
return InvalidParameter;
LIST_FOR_EACH_ENTRY(container, &graphics->containers, GraphicsContainerItem, entry){
if(container->contid == state && container->type == type)
break;
}
/* did not find a matching container */
if(&container->entry == &graphics->containers)
return Ok;
sts = restore_container(graphics, container);
if(sts != Ok)
return sts;
/* remove all of the containers on top of the found container */
LIST_FOR_EACH_ENTRY_SAFE(container, container2, &graphics->containers, GraphicsContainerItem, entry){
if(container->contid == state)
break;
list_remove(&container->entry);
delete_container(container);
}
list_remove(&container->entry);
delete_container(container);
if (graphics->image && graphics->image->type == ImageTypeMetafile) {
if (type == BEGIN_CONTAINER)
METAFILE_EndContainer((GpMetafile*)graphics->image, state);
else
METAFILE_RestoreGraphics((GpMetafile*)graphics->image, state);
}
return Ok;
}
GpStatus WINGDIPAPI GdipEndContainer(GpGraphics *graphics, GraphicsContainer state)
{
TRACE("(%p, %x)\n", graphics, state);
return end_container(graphics, BEGIN_CONTAINER, state);
}
GpStatus WINGDIPAPI GdipRestoreGraphics(GpGraphics *graphics, GraphicsState state)
{
TRACE("(%p, %x)\n", graphics, state);
return end_container(graphics, SAVE_GRAPHICS, state);
}
GpStatus WINGDIPAPI GdipScaleWorldTransform(GpGraphics *graphics, REAL sx,
REAL sy, GpMatrixOrder order)
{
GpStatus stat;
TRACE("(%p, %.2f, %.2f, %d)\n", graphics, sx, sy, order);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (graphics->image && graphics->image->type == ImageTypeMetafile) {
stat = METAFILE_ScaleWorldTransform((GpMetafile*)graphics->image, sx, sy, order);
if (stat != Ok)
return stat;
}
return GdipScaleMatrix(&graphics->worldtrans, sx, sy, order);
}
GpStatus WINGDIPAPI GdipSetClipGraphics(GpGraphics *graphics, GpGraphics *srcgraphics,
CombineMode mode)
{
TRACE("(%p, %p, %d)\n", graphics, srcgraphics, mode);
if(!graphics || !srcgraphics)
return InvalidParameter;
return GdipCombineRegionRegion(graphics->clip, srcgraphics->clip, mode);
}
GpStatus WINGDIPAPI GdipSetCompositingMode(GpGraphics *graphics,
CompositingMode mode)
{
TRACE("(%p, %d)\n", graphics, mode);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
graphics->compmode = mode;
return Ok;
}
GpStatus WINGDIPAPI GdipSetCompositingQuality(GpGraphics *graphics,
CompositingQuality quality)
{
TRACE("(%p, %d)\n", graphics, quality);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
graphics->compqual = quality;
return Ok;
}
GpStatus WINGDIPAPI GdipSetInterpolationMode(GpGraphics *graphics,
InterpolationMode mode)
{
TRACE("(%p, %d)\n", graphics, mode);
if(!graphics || mode == InterpolationModeInvalid || mode > InterpolationModeHighQualityBicubic)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (mode == InterpolationModeDefault || mode == InterpolationModeLowQuality)
mode = InterpolationModeBilinear;
if (mode == InterpolationModeHighQuality)
mode = InterpolationModeHighQualityBicubic;
graphics->interpolation = mode;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPageScale(GpGraphics *graphics, REAL scale)
{
GpStatus stat;
TRACE("(%p, %.2f)\n", graphics, scale);
if(!graphics || (scale <= 0.0))
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (graphics->image && graphics->image->type == ImageTypeMetafile)
{
stat = METAFILE_SetPageTransform((GpMetafile*)graphics->image, graphics->unit, scale);
if (stat != Ok)
return stat;
}
graphics->scale = scale;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPageUnit(GpGraphics *graphics, GpUnit unit)
{
GpStatus stat;
TRACE("(%p, %d)\n", graphics, unit);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if(unit == UnitWorld)
return InvalidParameter;
if (graphics->image && graphics->image->type == ImageTypeMetafile)
{
stat = METAFILE_SetPageTransform((GpMetafile*)graphics->image, unit, graphics->scale);
if (stat != Ok)
return stat;
}
graphics->unit = unit;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPixelOffsetMode(GpGraphics *graphics, PixelOffsetMode
mode)
{
TRACE("(%p, %d)\n", graphics, mode);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
graphics->pixeloffset = mode;
return Ok;
}
GpStatus WINGDIPAPI GdipSetRenderingOrigin(GpGraphics *graphics, INT x, INT y)
{
static int calls;
TRACE("(%p,%i,%i)\n", graphics, x, y);
if (!(calls++))
FIXME("value is unused in rendering\n");
if (!graphics)
return InvalidParameter;
graphics->origin_x = x;
graphics->origin_y = y;
return Ok;
}
GpStatus WINGDIPAPI GdipGetRenderingOrigin(GpGraphics *graphics, INT *x, INT *y)
{
TRACE("(%p,%p,%p)\n", graphics, x, y);
if (!graphics || !x || !y)
return InvalidParameter;
*x = graphics->origin_x;
*y = graphics->origin_y;
return Ok;
}
GpStatus WINGDIPAPI GdipSetSmoothingMode(GpGraphics *graphics, SmoothingMode mode)
{
TRACE("(%p, %d)\n", graphics, mode);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
graphics->smoothing = mode;
return Ok;
}
GpStatus WINGDIPAPI GdipSetTextContrast(GpGraphics *graphics, UINT contrast)
{
TRACE("(%p, %d)\n", graphics, contrast);
if(!graphics)
return InvalidParameter;
graphics->textcontrast = contrast;
return Ok;
}
GpStatus WINGDIPAPI GdipSetTextRenderingHint(GpGraphics *graphics,
TextRenderingHint hint)
{
TRACE("(%p, %d)\n", graphics, hint);
if(!graphics || hint > TextRenderingHintClearTypeGridFit)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
graphics->texthint = hint;
return Ok;
}
GpStatus WINGDIPAPI GdipSetWorldTransform(GpGraphics *graphics, GpMatrix *matrix)
{
GpStatus stat;
TRACE("(%p, %p)\n", graphics, matrix);
if(!graphics || !matrix)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
TRACE("%f,%f,%f,%f,%f,%f\n",
matrix->matrix[0], matrix->matrix[1], matrix->matrix[2],
matrix->matrix[3], matrix->matrix[4], matrix->matrix[5]);
if (graphics->image && graphics->image->type == ImageTypeMetafile) {
stat = METAFILE_SetWorldTransform((GpMetafile*)graphics->image, matrix);
if (stat != Ok)
return stat;
}
graphics->worldtrans = *matrix;
return Ok;
}
GpStatus WINGDIPAPI GdipTranslateWorldTransform(GpGraphics *graphics, REAL dx,
REAL dy, GpMatrixOrder order)
{
GpStatus stat;
TRACE("(%p, %.2f, %.2f, %d)\n", graphics, dx, dy, order);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (graphics->image && graphics->image->type == ImageTypeMetafile) {
stat = METAFILE_TranslateWorldTransform((GpMetafile*)graphics->image, dx, dy, order);
if (stat != Ok)
return stat;
}
return GdipTranslateMatrix(&graphics->worldtrans, dx, dy, order);
}
/*****************************************************************************
* GdipSetClipHrgn [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipSetClipHrgn(GpGraphics *graphics, HRGN hrgn, CombineMode mode)
{
GpRegion *region;
GpStatus status;
TRACE("(%p, %p, %d)\n", graphics, hrgn, mode);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
/* hrgn is already in device units */
status = GdipCreateRegionHrgn(hrgn, &region);
if(status != Ok)
return status;
status = GdipCombineRegionRegion(graphics->clip, region, mode);
GdipDeleteRegion(region);
return status;
}
GpStatus WINGDIPAPI GdipSetClipPath(GpGraphics *graphics, GpPath *path, CombineMode mode)
{
GpStatus status;
GpPath *clip_path;
TRACE("(%p, %p, %d)\n", graphics, path, mode);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipClonePath(path, &clip_path);
if (status == Ok)
{
GpMatrix world_to_device;
get_graphics_transform(graphics, CoordinateSpaceDevice,
CoordinateSpaceWorld, &world_to_device);
status = GdipTransformPath(clip_path, &world_to_device);
if (status == Ok)
GdipCombineRegionPath(graphics->clip, clip_path, mode);
GdipDeletePath(clip_path);
}
return status;
}
GpStatus WINGDIPAPI GdipSetClipRect(GpGraphics *graphics, REAL x, REAL y,
REAL width, REAL height,
CombineMode mode)
{
GpStatus status;
GpRectF rect;
GpRegion *region;
TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %d)\n", graphics, x, y, width, height, mode);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (graphics->image && graphics->image->type == ImageTypeMetafile)
{
status = METAFILE_SetClipRect((GpMetafile*)graphics->image, x, y, width, height, mode);
if (status != Ok)
return status;
}
rect.X = x;
rect.Y = y;
rect.Width = width;
rect.Height = height;
status = GdipCreateRegionRect(&rect, &region);
if (status == Ok)
{
GpMatrix world_to_device;
get_graphics_transform(graphics, CoordinateSpaceDevice, CoordinateSpaceWorld, &world_to_device);
status = GdipTransformRegion(region, &world_to_device);
if (status == Ok)
status = GdipCombineRegionRegion(graphics->clip, region, mode);
GdipDeleteRegion(region);
}
return status;
}
GpStatus WINGDIPAPI GdipSetClipRectI(GpGraphics *graphics, INT x, INT y,
INT width, INT height,
CombineMode mode)
{
TRACE("(%p, %d, %d, %d, %d, %d)\n", graphics, x, y, width, height, mode);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
return GdipSetClipRect(graphics, (REAL)x, (REAL)y, (REAL)width, (REAL)height, mode);
}
GpStatus WINGDIPAPI GdipSetClipRegion(GpGraphics *graphics, GpRegion *region,
CombineMode mode)
{
GpStatus status;
GpRegion *clip;
TRACE("(%p, %p, %d)\n", graphics, region, mode);
if(!graphics || !region)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipCloneRegion(region, &clip);
if (status == Ok)
{
GpMatrix world_to_device;
get_graphics_transform(graphics, CoordinateSpaceDevice, CoordinateSpaceWorld, &world_to_device);
status = GdipTransformRegion(clip, &world_to_device);
if (status == Ok)
status = GdipCombineRegionRegion(graphics->clip, clip, mode);
GdipDeleteRegion(clip);
}
return status;
}
GpStatus WINGDIPAPI GdipDrawPolygon(GpGraphics *graphics,GpPen *pen,GDIPCONST GpPointF *points,
INT count)
{
GpStatus status;
GpPath* path;
TRACE("(%p, %p, %d)\n", graphics, points, count);
if(!graphics || !pen || count<=0)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
status = GdipAddPathPolygon(path, points, count);
if (status == Ok)
status = GdipDrawPath(graphics, pen, path);
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipDrawPolygonI(GpGraphics *graphics,GpPen *pen,GDIPCONST GpPoint *points,
INT count)
{
GpStatus ret;
GpPointF *ptf;
INT i;
TRACE("(%p, %p, %p, %d)\n", graphics, pen, points, count);
if(count<=0) return InvalidParameter;
ptf = heap_alloc_zero(sizeof(GpPointF) * count);
for(i = 0;i < count; i++){
ptf[i].X = (REAL)points[i].X;
ptf[i].Y = (REAL)points[i].Y;
}
ret = GdipDrawPolygon(graphics,pen,ptf,count);
heap_free(ptf);
return ret;
}
GpStatus WINGDIPAPI GdipGetDpiX(GpGraphics *graphics, REAL* dpi)
{
TRACE("(%p, %p)\n", graphics, dpi);
if(!graphics || !dpi)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
*dpi = graphics->xres;
return Ok;
}
GpStatus WINGDIPAPI GdipGetDpiY(GpGraphics *graphics, REAL* dpi)
{
TRACE("(%p, %p)\n", graphics, dpi);
if(!graphics || !dpi)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
*dpi = graphics->yres;
return Ok;
}
GpStatus WINGDIPAPI GdipMultiplyWorldTransform(GpGraphics *graphics, GDIPCONST GpMatrix *matrix,
GpMatrixOrder order)
{
GpMatrix m;
GpStatus ret;
TRACE("(%p, %p, %d)\n", graphics, matrix, order);
if(!graphics || !matrix)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (graphics->image && graphics->image->type == ImageTypeMetafile) {
ret = METAFILE_MultiplyWorldTransform((GpMetafile*)graphics->image, matrix, order);
if (ret != Ok)
return ret;
}
m = graphics->worldtrans;
ret = GdipMultiplyMatrix(&m, matrix, order);
if(ret == Ok)
graphics->worldtrans = m;
return ret;
}
/* Color used to fill bitmaps so we can tell which parts have been drawn over by gdi32. */
static const COLORREF DC_BACKGROUND_KEY = 0x0c0b0d;
GpStatus WINGDIPAPI GdipGetDC(GpGraphics *graphics, HDC *hdc)
{
GpStatus stat=Ok;
TRACE("(%p, %p)\n", graphics, hdc);
if(!graphics || !hdc)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if (graphics->image && graphics->image->type == ImageTypeMetafile)
{
stat = METAFILE_GetDC((GpMetafile*)graphics->image, hdc);
}
else if (!graphics->hdc ||
(graphics->image && graphics->image->type == ImageTypeBitmap && ((GpBitmap*)graphics->image)->format & PixelFormatAlpha))
{
/* Create a fake HDC and fill it with a constant color. */
HDC temp_hdc;
HBITMAP hbitmap;
GpRectF bounds;
BITMAPINFOHEADER bmih;
int i;
stat = get_graphics_bounds(graphics, &bounds);
if (stat != Ok)
return stat;
graphics->temp_hbitmap_width = bounds.Width;
graphics->temp_hbitmap_height = bounds.Height;
bmih.biSize = sizeof(bmih);
bmih.biWidth = graphics->temp_hbitmap_width;
bmih.biHeight = -graphics->temp_hbitmap_height;
bmih.biPlanes = 1;
bmih.biBitCount = 32;
bmih.biCompression = BI_RGB;
bmih.biSizeImage = 0;
bmih.biXPelsPerMeter = 0;
bmih.biYPelsPerMeter = 0;
bmih.biClrUsed = 0;
bmih.biClrImportant = 0;
hbitmap = CreateDIBSection(NULL, (BITMAPINFO*)&bmih, DIB_RGB_COLORS,
(void**)&graphics->temp_bits, NULL, 0);
if (!hbitmap)
return GenericError;
temp_hdc = CreateCompatibleDC(0);
if (!temp_hdc)
{
DeleteObject(hbitmap);
return GenericError;
}
for (i=0; i<(graphics->temp_hbitmap_width * graphics->temp_hbitmap_height); i++)
((DWORD*)graphics->temp_bits)[i] = DC_BACKGROUND_KEY;
SelectObject(temp_hdc, hbitmap);
graphics->temp_hbitmap = hbitmap;
*hdc = graphics->temp_hdc = temp_hdc;
}
else
{
*hdc = graphics->hdc;
}
if (stat == Ok)
graphics->busy = TRUE;
return stat;
}
GpStatus WINGDIPAPI GdipReleaseDC(GpGraphics *graphics, HDC hdc)
{
GpStatus stat=Ok;
TRACE("(%p, %p)\n", graphics, hdc);
if(!graphics || !hdc || !graphics->busy)
return InvalidParameter;
if (graphics->image && graphics->image->type == ImageTypeMetafile)
{
stat = METAFILE_ReleaseDC((GpMetafile*)graphics->image, hdc);
}
else if (graphics->temp_hdc == hdc)
{
DWORD* pos;
int i;
/* Find the pixels that have changed, and mark them as opaque. */
pos = (DWORD*)graphics->temp_bits;
for (i=0; i<(graphics->temp_hbitmap_width * graphics->temp_hbitmap_height); i++)
{
if (*pos != DC_BACKGROUND_KEY)
{
*pos |= 0xff000000;
}
pos++;
}
/* Write the changed pixels to the real target. */
alpha_blend_pixels(graphics, 0, 0, graphics->temp_bits,
graphics->temp_hbitmap_width, graphics->temp_hbitmap_height,
graphics->temp_hbitmap_width * 4, PixelFormat32bppARGB);
/* Clean up. */
DeleteDC(graphics->temp_hdc);
DeleteObject(graphics->temp_hbitmap);
graphics->temp_hdc = NULL;
graphics->temp_hbitmap = NULL;
}
else if (hdc != graphics->hdc)
{
stat = InvalidParameter;
}
if (stat == Ok)
graphics->busy = FALSE;
return stat;
}
GpStatus WINGDIPAPI GdipGetClip(GpGraphics *graphics, GpRegion *region)
{
GpRegion *clip;
GpStatus status;
GpMatrix device_to_world;
TRACE("(%p, %p)\n", graphics, region);
if(!graphics || !region)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
if((status = GdipCloneRegion(graphics->clip, &clip)) != Ok)
return status;
get_graphics_transform(graphics, CoordinateSpaceWorld, CoordinateSpaceDevice, &device_to_world);
status = GdipTransformRegion(clip, &device_to_world);
if (status != Ok)
{
GdipDeleteRegion(clip);
return status;
}
/* free everything except root node and header */
delete_element(&region->node);
memcpy(region, clip, sizeof(GpRegion));
heap_free(clip);
return Ok;
}
GpStatus get_graphics_transform(GpGraphics *graphics, GpCoordinateSpace dst_space,
GpCoordinateSpace src_space, GpMatrix *matrix)
{
GpStatus stat = Ok;
REAL scale_x, scale_y;
GdipSetMatrixElements(matrix, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
if (dst_space != src_space)
{
scale_x = units_to_pixels(1.0, graphics->unit, graphics->xres);
scale_y = units_to_pixels(1.0, graphics->unit, graphics->yres);
if(graphics->unit != UnitDisplay)
{
scale_x *= graphics->scale;
scale_y *= graphics->scale;
}
/* transform from src_space to CoordinateSpacePage */
switch (src_space)
{
case CoordinateSpaceWorld:
GdipMultiplyMatrix(matrix, &graphics->worldtrans, MatrixOrderAppend);
break;
case CoordinateSpacePage:
break;
case CoordinateSpaceDevice:
GdipScaleMatrix(matrix, 1.0/scale_x, 1.0/scale_y, MatrixOrderAppend);
break;
}
/* transform from CoordinateSpacePage to dst_space */
switch (dst_space)
{
case CoordinateSpaceWorld:
{
GpMatrix inverted_transform = graphics->worldtrans;
stat = GdipInvertMatrix(&inverted_transform);
if (stat == Ok)
GdipMultiplyMatrix(matrix, &inverted_transform, MatrixOrderAppend);
break;
}
case CoordinateSpacePage:
break;
case CoordinateSpaceDevice:
GdipScaleMatrix(matrix, scale_x, scale_y, MatrixOrderAppend);
break;
}
}
return stat;
}
GpStatus WINGDIPAPI GdipTransformPoints(GpGraphics *graphics, GpCoordinateSpace dst_space,
GpCoordinateSpace src_space, GpPointF *points, INT count)
{
GpMatrix matrix;
GpStatus stat;
if(!graphics || !points || count <= 0)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
TRACE("(%p, %d, %d, %p, %d)\n", graphics, dst_space, src_space, points, count);
if (src_space == dst_space) return Ok;
stat = get_graphics_transform(graphics, dst_space, src_space, &matrix);
if (stat != Ok) return stat;
return GdipTransformMatrixPoints(&matrix, points, count);
}
GpStatus WINGDIPAPI GdipTransformPointsI(GpGraphics *graphics, GpCoordinateSpace dst_space,
GpCoordinateSpace src_space, GpPoint *points, INT count)
{
GpPointF *pointsF;
GpStatus ret;
INT i;
TRACE("(%p, %d, %d, %p, %d)\n", graphics, dst_space, src_space, points, count);
if(count <= 0)
return InvalidParameter;
pointsF = heap_alloc_zero(sizeof(GpPointF) * count);
if(!pointsF)
return OutOfMemory;
for(i = 0; i < count; i++){
pointsF[i].X = (REAL)points[i].X;
pointsF[i].Y = (REAL)points[i].Y;
}
ret = GdipTransformPoints(graphics, dst_space, src_space, pointsF, count);
if(ret == Ok)
for(i = 0; i < count; i++){
points[i].X = gdip_round(pointsF[i].X);
points[i].Y = gdip_round(pointsF[i].Y);
}
heap_free(pointsF);
return ret;
}
HPALETTE WINGDIPAPI GdipCreateHalftonePalette(void)
{
static int calls;
TRACE("\n");
if (!calls++)
FIXME("stub\n");
return NULL;
}
/*****************************************************************************
* GdipTranslateClip [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipTranslateClip(GpGraphics *graphics, REAL dx, REAL dy)
{
TRACE("(%p, %.2f, %.2f)\n", graphics, dx, dy);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
return GdipTranslateRegion(graphics->clip, dx, dy);
}
/*****************************************************************************
* GdipTranslateClipI [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipTranslateClipI(GpGraphics *graphics, INT dx, INT dy)
{
TRACE("(%p, %d, %d)\n", graphics, dx, dy);
if(!graphics)
return InvalidParameter;
if(graphics->busy)
return ObjectBusy;
return GdipTranslateRegion(graphics->clip, (REAL)dx, (REAL)dy);
}
/*****************************************************************************
* GdipMeasureDriverString [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipMeasureDriverString(GpGraphics *graphics, GDIPCONST UINT16 *text, INT length,
GDIPCONST GpFont *font, GDIPCONST PointF *positions,
INT flags, GDIPCONST GpMatrix *matrix, RectF *boundingBox)
{
static const INT unsupported_flags = ~(DriverStringOptionsCmapLookup|DriverStringOptionsRealizedAdvance);
HFONT hfont;
HDC hdc;
REAL min_x, min_y, max_x, max_y, x, y;
int i;
TEXTMETRICW textmetric;
const WORD *glyph_indices;
WORD *dynamic_glyph_indices=NULL;
REAL rel_width, rel_height, ascent, descent;
GpPointF pt[3];
TRACE("(%p %p %d %p %p %d %p %p)\n", graphics, text, length, font, positions, flags, matrix, boundingBox);
if (!graphics || !text || !font || !positions || !boundingBox)
return InvalidParameter;
if (length == -1)
length = strlenW(text);
if (length == 0)
{
boundingBox->X = 0.0;
boundingBox->Y = 0.0;
boundingBox->Width = 0.0;
boundingBox->Height = 0.0;
}
if (flags & unsupported_flags)
FIXME("Ignoring flags %x\n", flags & unsupported_flags);
get_font_hfont(graphics, font, NULL, &hfont, matrix);
hdc = CreateCompatibleDC(0);
SelectObject(hdc, hfont);
GetTextMetricsW(hdc, &textmetric);
pt[0].X = 0.0;
pt[0].Y = 0.0;
pt[1].X = 1.0;
pt[1].Y = 0.0;
pt[2].X = 0.0;
pt[2].Y = 1.0;
if (matrix)
{
GpMatrix xform = *matrix;
GdipTransformMatrixPoints(&xform, pt, 3);
}
GdipTransformPoints(graphics, CoordinateSpaceDevice, CoordinateSpaceWorld, pt, 3);
rel_width = sqrt((pt[1].Y-pt[0].Y)*(pt[1].Y-pt[0].Y)+
(pt[1].X-pt[0].X)*(pt[1].X-pt[0].X));
rel_height = sqrt((pt[2].Y-pt[0].Y)*(pt[2].Y-pt[0].Y)+
(pt[2].X-pt[0].X)*(pt[2].X-pt[0].X));
if (flags & DriverStringOptionsCmapLookup)
{
glyph_indices = dynamic_glyph_indices = heap_alloc_zero(sizeof(WORD) * length);
if (!glyph_indices)
{
DeleteDC(hdc);
DeleteObject(hfont);
return OutOfMemory;
}
GetGlyphIndicesW(hdc, text, length, dynamic_glyph_indices, 0);
}
else
glyph_indices = text;
min_x = max_x = x = positions[0].X;
min_y = max_y = y = positions[0].Y;
ascent = textmetric.tmAscent / rel_height;
descent = textmetric.tmDescent / rel_height;
for (i=0; i<length; i++)
{
int char_width;
ABC abc;
if (!(flags & DriverStringOptionsRealizedAdvance))
{
x = positions[i].X;
y = positions[i].Y;
}
GetCharABCWidthsW(hdc, glyph_indices[i], glyph_indices[i], &abc);
char_width = abc.abcA + abc.abcB + abc.abcC;
if (min_y > y - ascent) min_y = y - ascent;
if (max_y < y + descent) max_y = y + descent;
if (min_x > x) min_x = x;
x += char_width / rel_width;
if (max_x < x) max_x = x;
}
heap_free(dynamic_glyph_indices);
DeleteDC(hdc);
DeleteObject(hfont);
boundingBox->X = min_x;
boundingBox->Y = min_y;
boundingBox->Width = max_x - min_x;
boundingBox->Height = max_y - min_y;
return Ok;
}
static GpStatus GDI32_GdipDrawDriverString(GpGraphics *graphics, GDIPCONST UINT16 *text, INT length,
GDIPCONST GpFont *font, GDIPCONST GpStringFormat *format,
GDIPCONST GpBrush *brush, GDIPCONST PointF *positions,
INT flags, GDIPCONST GpMatrix *matrix)
{
static const INT unsupported_flags = ~(DriverStringOptionsRealizedAdvance|DriverStringOptionsCmapLookup);
INT save_state;
GpPointF pt;
HFONT hfont;
UINT eto_flags=0;
GpStatus status;
HRGN hrgn;
if (flags & unsupported_flags)
FIXME("Ignoring flags %x\n", flags & unsupported_flags);
if (!(flags & DriverStringOptionsCmapLookup))
eto_flags |= ETO_GLYPH_INDEX;
save_state = SaveDC(graphics->hdc);
SetBkMode(graphics->hdc, TRANSPARENT);
SetTextColor(graphics->hdc, get_gdi_brush_color(brush));
status = get_clip_hrgn(graphics, &hrgn);
if (status == Ok && hrgn)
{
ExtSelectClipRgn(graphics->hdc, hrgn, RGN_AND);
DeleteObject(hrgn);
}
pt = positions[0];
GdipTransformPoints(graphics, CoordinateSpaceDevice, CoordinateSpaceWorld, &pt, 1);
get_font_hfont(graphics, font, format, &hfont, matrix);
SelectObject(graphics->hdc, hfont);
SetTextAlign(graphics->hdc, TA_BASELINE|TA_LEFT);
ExtTextOutW(graphics->hdc, gdip_round(pt.X), gdip_round(pt.Y), eto_flags, NULL, text, length, NULL);
RestoreDC(graphics->hdc, save_state);
DeleteObject(hfont);
return Ok;
}
static GpStatus SOFTWARE_GdipDrawDriverString(GpGraphics *graphics, GDIPCONST UINT16 *text, INT length,
GDIPCONST GpFont *font, GDIPCONST GpStringFormat *format,
GDIPCONST GpBrush *brush, GDIPCONST PointF *positions,
INT flags, GDIPCONST GpMatrix *matrix)
{
static const INT unsupported_flags = ~(DriverStringOptionsCmapLookup|DriverStringOptionsRealizedAdvance);
GpStatus stat;
PointF *real_positions, real_position;
POINT *pti;
HFONT hfont;
HDC hdc;
int min_x=INT_MAX, min_y=INT_MAX, max_x=INT_MIN, max_y=INT_MIN, i, x, y;
DWORD max_glyphsize=0;
GLYPHMETRICS glyphmetrics;
static const MAT2 identity = {{0,1}, {0,0}, {0,0}, {0,1}};
BYTE *glyph_mask;
BYTE *text_mask;
int text_mask_stride;
BYTE *pixel_data;
int pixel_data_stride;
GpRect pixel_area;
UINT ggo_flags = GGO_GRAY8_BITMAP;
if (length <= 0)
return Ok;
if (!(flags & DriverStringOptionsCmapLookup))
ggo_flags |= GGO_GLYPH_INDEX;
if (flags & unsupported_flags)
FIXME("Ignoring flags %x\n", flags & unsupported_flags);
pti = heap_alloc_zero(sizeof(POINT) * length);
if (!pti)
return OutOfMemory;
if (flags & DriverStringOptionsRealizedAdvance)
{
real_position = positions[0];
transform_and_round_points(graphics, pti, &real_position, 1);
}
else
{
real_positions = heap_alloc_zero(sizeof(PointF) * length);
if (!real_positions)
{
heap_free(pti);
return OutOfMemory;
}
memcpy(real_positions, positions, sizeof(PointF) * length);
transform_and_round_points(graphics, pti, real_positions, length);
heap_free(real_positions);
}
get_font_hfont(graphics, font, format, &hfont, matrix);
hdc = CreateCompatibleDC(0);
SelectObject(hdc, hfont);
/* Get the boundaries of the text to be drawn */
for (i=0; i<length; i++)
{
DWORD glyphsize;
int left, top, right, bottom;
glyphsize = GetGlyphOutlineW(hdc, text[i], ggo_flags,
&glyphmetrics, 0, NULL, &identity);
if (glyphsize == GDI_ERROR)
{
ERR("GetGlyphOutlineW failed\n");
heap_free(pti);
DeleteDC(hdc);
DeleteObject(hfont);
return GenericError;
}
if (glyphsize > max_glyphsize)
max_glyphsize = glyphsize;
if (glyphsize != 0)
{
left = pti[i].x + glyphmetrics.gmptGlyphOrigin.x;
top = pti[i].y - glyphmetrics.gmptGlyphOrigin.y;
right = pti[i].x + glyphmetrics.gmptGlyphOrigin.x + glyphmetrics.gmBlackBoxX;
bottom = pti[i].y - glyphmetrics.gmptGlyphOrigin.y + glyphmetrics.gmBlackBoxY;
if (left < min_x) min_x = left;
if (top < min_y) min_y = top;
if (right > max_x) max_x = right;
if (bottom > max_y) max_y = bottom;
}
if (i+1 < length && (flags & DriverStringOptionsRealizedAdvance) == DriverStringOptionsRealizedAdvance)
{
pti[i+1].x = pti[i].x + glyphmetrics.gmCellIncX;
pti[i+1].y = pti[i].y + glyphmetrics.gmCellIncY;
}
}
if (max_glyphsize == 0)
/* Nothing to draw. */
return Ok;
glyph_mask = heap_alloc_zero(max_glyphsize);
text_mask = heap_alloc_zero((max_x - min_x) * (max_y - min_y));
text_mask_stride = max_x - min_x;
if (!(glyph_mask && text_mask))
{
heap_free(glyph_mask);
heap_free(text_mask);
heap_free(pti);
DeleteDC(hdc);
DeleteObject(hfont);
return OutOfMemory;
}
/* Generate a mask for the text */
for (i=0; i<length; i++)
{
DWORD ret;
int left, top, stride;
ret = GetGlyphOutlineW(hdc, text[i], ggo_flags,
&glyphmetrics, max_glyphsize, glyph_mask, &identity);
if (ret == GDI_ERROR || ret == 0)
continue; /* empty glyph */
left = pti[i].x + glyphmetrics.gmptGlyphOrigin.x;
top = pti[i].y - glyphmetrics.gmptGlyphOrigin.y;
stride = (glyphmetrics.gmBlackBoxX + 3) & (~3);
for (y=0; y<glyphmetrics.gmBlackBoxY; y++)
{
BYTE *glyph_val = glyph_mask + y * stride;
BYTE *text_val = text_mask + (left - min_x) + (top - min_y + y) * text_mask_stride;
for (x=0; x<glyphmetrics.gmBlackBoxX; x++)
{
*text_val = min(64, *text_val + *glyph_val);
glyph_val++;
text_val++;
}
}
}
heap_free(pti);
DeleteDC(hdc);
DeleteObject(hfont);
heap_free(glyph_mask);
/* get the brush data */
pixel_data = heap_alloc_zero(4 * (max_x - min_x) * (max_y - min_y));
if (!pixel_data)
{
heap_free(text_mask);
return OutOfMemory;
}
pixel_area.X = min_x;
pixel_area.Y = min_y;
pixel_area.Width = max_x - min_x;
pixel_area.Height = max_y - min_y;
pixel_data_stride = pixel_area.Width * 4;
stat = brush_fill_pixels(graphics, (GpBrush*)brush, (DWORD*)pixel_data, &pixel_area, pixel_area.Width);
if (stat != Ok)
{
heap_free(text_mask);
heap_free(pixel_data);
return stat;
}
/* multiply the brush data by the mask */
for (y=0; y<pixel_area.Height; y++)
{
BYTE *text_val = text_mask + text_mask_stride * y;
BYTE *pixel_val = pixel_data + pixel_data_stride * y + 3;
for (x=0; x<pixel_area.Width; x++)
{
*pixel_val = (*pixel_val) * (*text_val) / 64;
text_val++;
pixel_val+=4;
}
}
heap_free(text_mask);
/* draw the result */
stat = alpha_blend_pixels(graphics, min_x, min_y, pixel_data, pixel_area.Width,
pixel_area.Height, pixel_data_stride, PixelFormat32bppARGB);
heap_free(pixel_data);
return stat;
}
static GpStatus draw_driver_string(GpGraphics *graphics, GDIPCONST UINT16 *text, INT length,
GDIPCONST GpFont *font, GDIPCONST GpStringFormat *format,
GDIPCONST GpBrush *brush, GDIPCONST PointF *positions,
INT flags, GDIPCONST GpMatrix *matrix)
{
GpStatus stat = NotImplemented;
if (length == -1)
length = strlenW(text);
if (graphics->hdc && !graphics->alpha_hdc &&
((flags & DriverStringOptionsRealizedAdvance) || length <= 1) &&
brush->bt == BrushTypeSolidColor &&
(((GpSolidFill*)brush)->color & 0xff000000) == 0xff000000)
stat = GDI32_GdipDrawDriverString(graphics, text, length, font, format,
brush, positions, flags, matrix);
if (stat == NotImplemented)
stat = SOFTWARE_GdipDrawDriverString(graphics, text, length, font, format,
brush, positions, flags, matrix);
return stat;
}
/*****************************************************************************
* GdipDrawDriverString [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipDrawDriverString(GpGraphics *graphics, GDIPCONST UINT16 *text, INT length,
GDIPCONST GpFont *font, GDIPCONST GpBrush *brush,
GDIPCONST PointF *positions, INT flags,
GDIPCONST GpMatrix *matrix )
{
TRACE("(%p %s %p %p %p %d %p)\n", graphics, debugstr_wn(text, length), font, brush, positions, flags, matrix);
if (!graphics || !text || !font || !brush || !positions)
return InvalidParameter;
return draw_driver_string(graphics, text, length, font, NULL,
brush, positions, flags, matrix);
}
/*****************************************************************************
* GdipIsVisibleClipEmpty [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipIsVisibleClipEmpty(GpGraphics *graphics, BOOL *res)
{
GpStatus stat;
GpRegion* rgn;
TRACE("(%p, %p)\n", graphics, res);
if((stat = GdipCreateRegion(&rgn)) != Ok)
return stat;
if((stat = get_visible_clip_region(graphics, rgn)) != Ok)
goto cleanup;
stat = GdipIsEmptyRegion(rgn, graphics, res);
cleanup:
GdipDeleteRegion(rgn);
return stat;
}
GpStatus WINGDIPAPI GdipResetPageTransform(GpGraphics *graphics)
{
static int calls;
TRACE("(%p) stub\n", graphics);
if(!(calls++))
FIXME("not implemented\n");
return NotImplemented;
}
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