546 lines
16 KiB
C
546 lines
16 KiB
C
/*
|
|
* GDI brush objects
|
|
*
|
|
* Copyright 1993, 1994 Alexandre Julliard
|
|
*
|
|
* 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 "config.h"
|
|
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "wingdi.h"
|
|
#include "gdi_private.h"
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(gdi);
|
|
|
|
/* GDI logical brush object */
|
|
typedef struct
|
|
{
|
|
GDIOBJHDR header;
|
|
LOGBRUSH logbrush;
|
|
HBITMAP bitmap; /* bitmap handle for DDB pattern brushes */
|
|
BITMAPINFO *info; /* DIB info for pattern brushes */
|
|
struct gdi_image_bits bits; /* DIB bits for pattern brushes */
|
|
UINT usage; /* color usage for DIB info */
|
|
} BRUSHOBJ;
|
|
|
|
#define NB_HATCH_STYLES 6
|
|
|
|
static HGDIOBJ BRUSH_SelectObject( HGDIOBJ handle, HDC hdc );
|
|
static INT BRUSH_GetObject( HGDIOBJ handle, INT count, LPVOID buffer );
|
|
static BOOL BRUSH_DeleteObject( HGDIOBJ handle );
|
|
|
|
static const struct gdi_obj_funcs brush_funcs =
|
|
{
|
|
BRUSH_SelectObject, /* pSelectObject */
|
|
BRUSH_GetObject, /* pGetObjectA */
|
|
BRUSH_GetObject, /* pGetObjectW */
|
|
NULL, /* pUnrealizeObject */
|
|
BRUSH_DeleteObject /* pDeleteObject */
|
|
};
|
|
|
|
|
|
/* fetch the contents of the brush bitmap and cache them in the brush object */
|
|
static BOOL store_bitmap_bits( BRUSHOBJ *brush, BITMAPOBJ *bmp )
|
|
{
|
|
const struct gdi_dc_funcs *funcs = get_bitmap_funcs( bmp );
|
|
struct gdi_image_bits bits;
|
|
struct bitblt_coords src;
|
|
BITMAPINFO *info;
|
|
|
|
if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] ))))
|
|
return FALSE;
|
|
|
|
src.visrect.left = src.x = 0;
|
|
src.visrect.top = src.y = 0;
|
|
src.visrect.right = src.width = bmp->bitmap.bmWidth;
|
|
src.visrect.bottom = src.height = bmp->bitmap.bmHeight;
|
|
if (funcs->pGetImage( NULL, brush->bitmap, info, &bits, &src ))
|
|
{
|
|
HeapFree( GetProcessHeap(), 0, info );
|
|
return FALSE;
|
|
}
|
|
|
|
if (info->bmiHeader.biBitCount <= 8 && !info->bmiHeader.biClrUsed) fill_default_color_table( info );
|
|
|
|
/* release the unneeded space */
|
|
HeapReAlloc( GetProcessHeap(), HEAP_REALLOC_IN_PLACE_ONLY, info,
|
|
bitmap_info_size( info, DIB_RGB_COLORS ));
|
|
brush->info = info;
|
|
brush->bits = bits;
|
|
brush->usage = DIB_RGB_COLORS;
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOL copy_bitmap( BRUSHOBJ *brush, HBITMAP bitmap )
|
|
{
|
|
BITMAPINFO *info;
|
|
BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
|
|
|
|
if (!bmp) return FALSE;
|
|
|
|
if (!bmp->dib)
|
|
{
|
|
if ((brush->bitmap = CreateBitmap( bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
|
|
bmp->bitmap.bmPlanes, bmp->bitmap.bmBitsPixel, NULL )))
|
|
{
|
|
if (bmp->funcs->pCopyBitmap( bitmap, brush->bitmap ))
|
|
{
|
|
BITMAPOBJ *copy = GDI_GetObjPtr( brush->bitmap, OBJ_BITMAP );
|
|
copy->funcs = bmp->funcs;
|
|
GDI_ReleaseObj( copy );
|
|
}
|
|
else
|
|
{
|
|
DeleteObject( brush->bitmap );
|
|
brush->bitmap = 0;
|
|
}
|
|
}
|
|
GDI_ReleaseObj( bitmap );
|
|
return brush->bitmap != 0;
|
|
}
|
|
|
|
info = HeapAlloc( GetProcessHeap(), 0,
|
|
bitmap_info_size( (BITMAPINFO *)&bmp->dib->dsBmih, DIB_RGB_COLORS ));
|
|
if (!info) goto done;
|
|
info->bmiHeader = bmp->dib->dsBmih;
|
|
if (bmp->dib->dsBmih.biCompression == BI_BITFIELDS)
|
|
memcpy( &info->bmiHeader + 1, bmp->dib->dsBitfields, sizeof(bmp->dib->dsBitfields) );
|
|
else if (bmp->nb_colors)
|
|
memcpy( &info->bmiHeader + 1, bmp->color_table, bmp->nb_colors * sizeof(RGBQUAD) );
|
|
if (!(brush->bits.ptr = HeapAlloc( GetProcessHeap(), 0, get_dib_image_size( info ))))
|
|
{
|
|
HeapFree( GetProcessHeap(), 0, info );
|
|
goto done;
|
|
}
|
|
memcpy( brush->bits.ptr, bmp->dib->dsBm.bmBits, get_dib_image_size( info ));
|
|
brush->bits.is_copy = TRUE;
|
|
brush->bits.free = free_heap_bits;
|
|
brush->info = info;
|
|
brush->usage = DIB_RGB_COLORS;
|
|
|
|
done:
|
|
GDI_ReleaseObj( bitmap );
|
|
return brush->info != NULL;
|
|
}
|
|
|
|
BOOL get_brush_bitmap_info( HBRUSH handle, BITMAPINFO *info, void **bits, UINT *usage )
|
|
{
|
|
BRUSHOBJ *brush;
|
|
BOOL ret = FALSE;
|
|
|
|
if (!(brush = GDI_GetObjPtr( handle, OBJ_BRUSH ))) return FALSE;
|
|
|
|
if (!brush->info)
|
|
{
|
|
BITMAPOBJ *bmp = GDI_GetObjPtr( brush->bitmap, OBJ_BITMAP );
|
|
|
|
if (bmp)
|
|
{
|
|
store_bitmap_bits( brush, bmp );
|
|
GDI_ReleaseObj( brush->bitmap );
|
|
}
|
|
}
|
|
if (brush->info)
|
|
{
|
|
memcpy( info, brush->info, bitmap_info_size( brush->info, brush->usage ));
|
|
*bits = brush->bits.ptr;
|
|
*usage = brush->usage;
|
|
ret = TRUE;
|
|
}
|
|
GDI_ReleaseObj( handle );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateBrushIndirect (GDI32.@)
|
|
*
|
|
* Create a logical brush with a given style, color or pattern.
|
|
*
|
|
* PARAMS
|
|
* brush [I] Pointer to a LOGBRUSH structure describing the desired brush.
|
|
*
|
|
* RETURNS
|
|
* A handle to the created brush, or a NULL handle if the brush cannot be
|
|
* created.
|
|
*
|
|
* NOTES
|
|
* - The brush returned should be freed by the caller using DeleteObject()
|
|
* when it is no longer required.
|
|
* - Windows 95 and earlier cannot create brushes from bitmaps or DIBs larger
|
|
* than 8x8 pixels. If a larger bitmap is given, only a portion of the bitmap
|
|
* is used.
|
|
*/
|
|
HBRUSH WINAPI CreateBrushIndirect( const LOGBRUSH * brush )
|
|
{
|
|
BRUSHOBJ * ptr;
|
|
HBRUSH hbrush;
|
|
HGLOBAL hmem = 0;
|
|
|
|
if (!(ptr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ptr) ))) return 0;
|
|
|
|
ptr->logbrush = *brush;
|
|
|
|
switch (ptr->logbrush.lbStyle)
|
|
{
|
|
case BS_SOLID:
|
|
case BS_HOLLOW:
|
|
case BS_HATCHED:
|
|
break;
|
|
|
|
case BS_PATTERN8X8:
|
|
ptr->logbrush.lbStyle = BS_PATTERN;
|
|
/* fall through */
|
|
case BS_PATTERN:
|
|
if (!copy_bitmap( ptr, (HBITMAP)ptr->logbrush.lbHatch )) goto error;
|
|
ptr->logbrush.lbColor = 0;
|
|
break;
|
|
|
|
case BS_DIBPATTERN:
|
|
hmem = (HGLOBAL)ptr->logbrush.lbHatch;
|
|
if (!(ptr->logbrush.lbHatch = (ULONG_PTR)GlobalLock( hmem ))) goto error;
|
|
/* fall through */
|
|
case BS_DIBPATTERNPT:
|
|
ptr->usage = ptr->logbrush.lbColor;
|
|
ptr->info = copy_packed_dib( (BITMAPINFO *)ptr->logbrush.lbHatch, ptr->usage );
|
|
if (hmem) GlobalUnlock( hmem );
|
|
if (!ptr->info) goto error;
|
|
ptr->bits.ptr = (char *)ptr->info + bitmap_info_size( ptr->info, ptr->usage );
|
|
ptr->logbrush.lbStyle = BS_DIBPATTERN;
|
|
ptr->logbrush.lbColor = 0;
|
|
break;
|
|
|
|
case BS_DIBPATTERN8X8:
|
|
case BS_MONOPATTERN:
|
|
case BS_INDEXED:
|
|
default:
|
|
WARN( "invalid brush style %u\n", ptr->logbrush.lbStyle );
|
|
goto error;
|
|
}
|
|
|
|
if ((hbrush = alloc_gdi_handle( &ptr->header, OBJ_BRUSH, &brush_funcs )))
|
|
{
|
|
TRACE("%p\n", hbrush);
|
|
return hbrush;
|
|
}
|
|
|
|
error:
|
|
if (ptr->bitmap) DeleteObject( ptr->bitmap );
|
|
HeapFree( GetProcessHeap(), 0, ptr->info );
|
|
HeapFree( GetProcessHeap(), 0, ptr );
|
|
return 0;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateHatchBrush (GDI32.@)
|
|
*
|
|
* Create a logical brush with a hatched pattern.
|
|
*
|
|
* PARAMS
|
|
* style [I] Direction of lines for the hatch pattern (HS_* values from "wingdi.h")
|
|
* color [I] Colour of the hatched pattern
|
|
*
|
|
* RETURNS
|
|
* A handle to the created brush, or a NULL handle if the brush cannot
|
|
* be created.
|
|
*
|
|
* NOTES
|
|
* - This function uses CreateBrushIndirect() to create the brush.
|
|
* - The brush returned should be freed by the caller using DeleteObject()
|
|
* when it is no longer required.
|
|
*/
|
|
HBRUSH WINAPI CreateHatchBrush( INT style, COLORREF color )
|
|
{
|
|
LOGBRUSH logbrush;
|
|
|
|
TRACE("%d %06x\n", style, color );
|
|
|
|
logbrush.lbStyle = BS_HATCHED;
|
|
logbrush.lbColor = color;
|
|
logbrush.lbHatch = style;
|
|
|
|
return CreateBrushIndirect( &logbrush );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreatePatternBrush (GDI32.@)
|
|
*
|
|
* Create a logical brush with a pattern from a bitmap.
|
|
*
|
|
* PARAMS
|
|
* hbitmap [I] Bitmap containing pattern for the brush
|
|
*
|
|
* RETURNS
|
|
* A handle to the created brush, or a NULL handle if the brush cannot
|
|
* be created.
|
|
*
|
|
* NOTES
|
|
* - This function uses CreateBrushIndirect() to create the brush.
|
|
* - The brush returned should be freed by the caller using DeleteObject()
|
|
* when it is no longer required.
|
|
*/
|
|
HBRUSH WINAPI CreatePatternBrush( HBITMAP hbitmap )
|
|
{
|
|
LOGBRUSH logbrush = { BS_PATTERN, 0, 0 };
|
|
TRACE("%p\n", hbitmap );
|
|
|
|
logbrush.lbHatch = (ULONG_PTR)hbitmap;
|
|
return CreateBrushIndirect( &logbrush );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateDIBPatternBrush (GDI32.@)
|
|
*
|
|
* Create a logical brush with a pattern from a DIB.
|
|
*
|
|
* PARAMS
|
|
* hbitmap [I] Global object containing BITMAPINFO structure for the pattern
|
|
* coloruse [I] Specifies color format, if provided
|
|
*
|
|
* RETURNS
|
|
* A handle to the created brush, or a NULL handle if the brush cannot
|
|
* be created.
|
|
*
|
|
* NOTES
|
|
* - This function uses CreateBrushIndirect() to create the brush.
|
|
* - The brush returned should be freed by the caller using DeleteObject()
|
|
* when it is no longer required.
|
|
* - This function is for compatibility only. CreateDIBPatternBrushPt() should
|
|
* be used instead.
|
|
*/
|
|
HBRUSH WINAPI CreateDIBPatternBrush( HGLOBAL hbitmap, UINT coloruse )
|
|
{
|
|
LOGBRUSH logbrush;
|
|
|
|
TRACE("%p\n", hbitmap );
|
|
|
|
logbrush.lbStyle = BS_DIBPATTERN;
|
|
logbrush.lbColor = coloruse;
|
|
|
|
logbrush.lbHatch = (ULONG_PTR)hbitmap;
|
|
|
|
return CreateBrushIndirect( &logbrush );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateDIBPatternBrushPt (GDI32.@)
|
|
*
|
|
* Create a logical brush with a pattern from a DIB.
|
|
*
|
|
* PARAMS
|
|
* data [I] Pointer to a BITMAPINFO structure and image data for the pattern
|
|
* coloruse [I] Specifies color format, if provided
|
|
*
|
|
* RETURNS
|
|
* A handle to the created brush, or a NULL handle if the brush cannot
|
|
* be created.
|
|
*
|
|
* NOTES
|
|
* - This function uses CreateBrushIndirect() to create the brush.
|
|
* - The brush returned should be freed by the caller using DeleteObject()
|
|
* when it is no longer required.
|
|
*/
|
|
HBRUSH WINAPI CreateDIBPatternBrushPt( const void* data, UINT coloruse )
|
|
{
|
|
const BITMAPINFO *info=data;
|
|
LOGBRUSH logbrush;
|
|
|
|
if (!data)
|
|
return NULL;
|
|
|
|
TRACE("%p %dx%d %dbpp\n", info, info->bmiHeader.biWidth,
|
|
info->bmiHeader.biHeight, info->bmiHeader.biBitCount);
|
|
|
|
logbrush.lbStyle = BS_DIBPATTERNPT;
|
|
logbrush.lbColor = coloruse;
|
|
logbrush.lbHatch = (ULONG_PTR)data;
|
|
|
|
return CreateBrushIndirect( &logbrush );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateSolidBrush (GDI32.@)
|
|
*
|
|
* Create a logical brush consisting of a single colour.
|
|
*
|
|
* PARAMS
|
|
* color [I] Colour to make the solid brush
|
|
*
|
|
* RETURNS
|
|
* A handle to the newly created brush, or a NULL handle if the brush cannot
|
|
* be created.
|
|
*
|
|
* NOTES
|
|
* - This function uses CreateBrushIndirect() to create the brush.
|
|
* - The brush returned should be freed by the caller using DeleteObject()
|
|
* when it is no longer required.
|
|
*/
|
|
HBRUSH WINAPI CreateSolidBrush( COLORREF color )
|
|
{
|
|
LOGBRUSH logbrush;
|
|
|
|
TRACE("%06x\n", color );
|
|
|
|
logbrush.lbStyle = BS_SOLID;
|
|
logbrush.lbColor = color;
|
|
logbrush.lbHatch = 0;
|
|
|
|
return CreateBrushIndirect( &logbrush );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetBrushOrgEx (GDI32.@)
|
|
*
|
|
* Set the brush origin for a device context.
|
|
*
|
|
* PARAMS
|
|
* hdc [I] Device context to set the brush origin for
|
|
* x [I] New x origin
|
|
* y [I] New y origin
|
|
* oldorg [O] If non NULL, destination for previously set brush origin.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE. The origin is set to (x,y), and oldorg is updated if given.
|
|
*/
|
|
BOOL WINAPI SetBrushOrgEx( HDC hdc, INT x, INT y, LPPOINT oldorg )
|
|
{
|
|
DC *dc = get_dc_ptr( hdc );
|
|
|
|
if (!dc) return FALSE;
|
|
if (oldorg)
|
|
{
|
|
oldorg->x = dc->brushOrgX;
|
|
oldorg->y = dc->brushOrgY;
|
|
}
|
|
dc->brushOrgX = x;
|
|
dc->brushOrgY = y;
|
|
release_dc_ptr( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* FixBrushOrgEx (GDI32.@)
|
|
*
|
|
* See SetBrushOrgEx.
|
|
*
|
|
* NOTES
|
|
* This function is no longer documented by MSDN, but in Win95 GDI32 it
|
|
* is the same as SetBrushOrgEx().
|
|
*/
|
|
BOOL WINAPI FixBrushOrgEx( HDC hdc, INT x, INT y, LPPOINT oldorg )
|
|
{
|
|
return SetBrushOrgEx(hdc,x,y,oldorg);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BRUSH_SelectObject
|
|
*/
|
|
static HGDIOBJ BRUSH_SelectObject( HGDIOBJ handle, HDC hdc )
|
|
{
|
|
BRUSHOBJ *brush;
|
|
HGDIOBJ ret = 0;
|
|
DC *dc = get_dc_ptr( hdc );
|
|
|
|
if (!dc)
|
|
{
|
|
SetLastError( ERROR_INVALID_HANDLE );
|
|
return 0;
|
|
}
|
|
|
|
if ((brush = GDI_GetObjPtr( handle, OBJ_BRUSH )))
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSelectBrush );
|
|
HBITMAP bitmap = brush->bitmap;
|
|
BITMAPINFO *info;
|
|
void *bits;
|
|
UINT usage;
|
|
|
|
if (bitmap && !brush->info)
|
|
{
|
|
BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
|
|
/* fetch the bitmap bits if we are selecting into a different type of DC */
|
|
if (bmp && bmp->funcs != physdev->funcs) store_bitmap_bits( brush, bmp );
|
|
GDI_ReleaseObj( bitmap );
|
|
}
|
|
|
|
info = brush->info;
|
|
bits = brush->bits.ptr;
|
|
usage = brush->usage;
|
|
GDI_inc_ref_count( handle );
|
|
GDI_ReleaseObj( handle );
|
|
|
|
if (!physdev->funcs->pSelectBrush( physdev, handle, bitmap, info, bits, usage ))
|
|
{
|
|
GDI_dec_ref_count( handle );
|
|
}
|
|
else
|
|
{
|
|
ret = dc->hBrush;
|
|
dc->hBrush = handle;
|
|
GDI_dec_ref_count( ret );
|
|
}
|
|
}
|
|
release_dc_ptr( dc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BRUSH_DeleteObject
|
|
*/
|
|
static BOOL BRUSH_DeleteObject( HGDIOBJ handle )
|
|
{
|
|
BRUSHOBJ *brush = free_gdi_handle( handle );
|
|
|
|
if (!brush) return FALSE;
|
|
if (brush->bits.free) brush->bits.free( &brush->bits );
|
|
if (brush->bitmap) DeleteObject( brush->bitmap );
|
|
HeapFree( GetProcessHeap(), 0, brush->info );
|
|
return HeapFree( GetProcessHeap(), 0, brush );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* BRUSH_GetObject
|
|
*/
|
|
static INT BRUSH_GetObject( HGDIOBJ handle, INT count, LPVOID buffer )
|
|
{
|
|
BRUSHOBJ *brush = GDI_GetObjPtr( handle, OBJ_BRUSH );
|
|
|
|
if (!brush) return 0;
|
|
if (buffer)
|
|
{
|
|
if (count > sizeof(brush->logbrush)) count = sizeof(brush->logbrush);
|
|
memcpy( buffer, &brush->logbrush, count );
|
|
}
|
|
else count = sizeof(brush->logbrush);
|
|
GDI_ReleaseObj( handle );
|
|
return count;
|
|
}
|