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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 "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "wingdi.h"
#include "objbase.h"
#include "gdiplus.h"
#include "gdiplus_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
typedef struct path_list_node_t path_list_node_t;
struct path_list_node_t {
GpPointF pt;
BYTE type; /* PathPointTypeStart or PathPointTypeLine */
path_list_node_t *next;
};
/* init list */
static BOOL init_path_list(path_list_node_t **node, REAL x, REAL y)
{
*node = heap_alloc_zero(sizeof(path_list_node_t));
if(!*node)
return FALSE;
(*node)->pt.X = x;
(*node)->pt.Y = y;
(*node)->type = PathPointTypeStart;
(*node)->next = NULL;
return TRUE;
}
/* free all nodes including argument */
static void free_path_list(path_list_node_t *node)
{
path_list_node_t *n = node;
while(n){
n = n->next;
heap_free(node);
node = n;
}
}
/* Add a node after 'node' */
/*
* Returns
* pointer on success
* NULL on allocation problems
*/
static path_list_node_t* add_path_list_node(path_list_node_t *node, REAL x, REAL y, BOOL type)
{
path_list_node_t *new;
new = heap_alloc_zero(sizeof(path_list_node_t));
if(!new)
return NULL;
new->pt.X = x;
new->pt.Y = y;
new->type = type;
new->next = node->next;
node->next = new;
return new;
}
/* returns element count */
static INT path_list_count(path_list_node_t *node)
{
INT count = 1;
while((node = node->next))
++count;
return count;
}
/* GdipFlattenPath helper */
/*
* Used to recursively flatten single Bezier curve
* Parameters:
* - start : pointer to start point node;
* - (x2, y2): first control point;
* - (x3, y3): second control point;
* - end : pointer to end point node
* - flatness: admissible error of linear approximation.
*
* Return value:
* TRUE : success
* FALSE: out of memory
*
* TODO: used quality criteria should be revised to match native as
* closer as possible.
*/
static BOOL flatten_bezier(path_list_node_t *start, REAL x2, REAL y2, REAL x3, REAL y3,
path_list_node_t *end, REAL flatness)
{
/* this 5 middle points with start/end define to half-curves */
GpPointF mp[5];
GpPointF pt, pt_st;
path_list_node_t *node;
/* calculate bezier curve middle points == new control points */
mp[0].X = (start->pt.X + x2) / 2.0;
mp[0].Y = (start->pt.Y + y2) / 2.0;
/* middle point between control points */
pt.X = (x2 + x3) / 2.0;
pt.Y = (y2 + y3) / 2.0;
mp[1].X = (mp[0].X + pt.X) / 2.0;
mp[1].Y = (mp[0].Y + pt.Y) / 2.0;
mp[4].X = (end->pt.X + x3) / 2.0;
mp[4].Y = (end->pt.Y + y3) / 2.0;
mp[3].X = (mp[4].X + pt.X) / 2.0;
mp[3].Y = (mp[4].Y + pt.Y) / 2.0;
mp[2].X = (mp[1].X + mp[3].X) / 2.0;
mp[2].Y = (mp[1].Y + mp[3].Y) / 2.0;
if ((x2 == mp[0].X && y2 == mp[0].Y && x3 == mp[1].X && y3 == mp[1].Y) ||
(x2 == mp[3].X && y2 == mp[3].Y && x3 == mp[4].X && y3 == mp[4].Y))
return TRUE;
pt = end->pt;
pt_st = start->pt;
/* check flatness as a half of distance between middle point and a linearized path */
if(fabs(((pt.Y - pt_st.Y)*mp[2].X + (pt_st.X - pt.X)*mp[2].Y +
(pt_st.Y*pt.X - pt_st.X*pt.Y))) <=
(0.5 * flatness*sqrtf((powf(pt.Y - pt_st.Y, 2.0) + powf(pt_st.X - pt.X, 2.0))))){
return TRUE;
}
else
/* add a middle point */
if(!(node = add_path_list_node(start, mp[2].X, mp[2].Y, PathPointTypeLine)))
return FALSE;
/* do the same with halves */
flatten_bezier(start, mp[0].X, mp[0].Y, mp[1].X, mp[1].Y, node, flatness);
flatten_bezier(node, mp[3].X, mp[3].Y, mp[4].X, mp[4].Y, end, flatness);
return TRUE;
}
/*******************************************************************************
* GdipAddPathArc [GDIPLUS.1]
*
* Add an elliptical arc to the given path.
*
* PARAMS
* path [I/O] Path that the arc is appended to
* x1 [I] X coordinate of the boundary box
* y1 [I] Y coordinate of the boundary box
* x2 [I] Width of the boundary box
* y2 [I] Height of the boundary box
* startAngle [I] Starting angle of the arc, clockwise
* sweepAngle [I] Angle of the arc, clockwise
*
* RETURNS
* InvalidParameter If the given path is invalid
* OutOfMemory If memory allocation fails, i.e. the path cannot be lengthened
* Ok If everything works out as expected
*
* NOTES
* This functions takes the newfigure value of the given path into account,
* i.e. the arc is connected to the end of the given path if it was set to
* FALSE, otherwise the arc's first point gets the PathPointTypeStart value.
* In both cases, the value of newfigure of the given path is FALSE
* afterwards.
*/
GpStatus WINGDIPAPI GdipAddPathArc(GpPath *path, REAL x1, REAL y1, REAL x2,
REAL y2, REAL startAngle, REAL sweepAngle)
{
INT count, old_count, i;
TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n",
path, x1, y1, x2, y2, startAngle, sweepAngle);
if(!path)
return InvalidParameter;
count = arc2polybezier(NULL, x1, y1, x2, y2, startAngle, sweepAngle);
if(count == 0)
return Ok;
if(!lengthen_path(path, count))
return OutOfMemory;
old_count = path->pathdata.Count;
arc2polybezier(&path->pathdata.Points[old_count], x1, y1, x2, y2,
startAngle, sweepAngle);
for(i = 0; i < count; i++){
path->pathdata.Types[old_count + i] = PathPointTypeBezier;
}
path->pathdata.Types[old_count] =
(path->newfigure ? PathPointTypeStart : PathPointTypeLine);
path->newfigure = FALSE;
path->pathdata.Count += count;
return Ok;
}
/*******************************************************************************
* GdipAddPathArcI [GDUPLUS.2]
*
* See GdipAddPathArc
*/
GpStatus WINGDIPAPI GdipAddPathArcI(GpPath *path, INT x1, INT y1, INT x2,
INT y2, REAL startAngle, REAL sweepAngle)
{
TRACE("(%p, %d, %d, %d, %d, %.2f, %.2f)\n",
path, x1, y1, x2, y2, startAngle, sweepAngle);
return GdipAddPathArc(path,(REAL)x1,(REAL)y1,(REAL)x2,(REAL)y2,startAngle,sweepAngle);
}
GpStatus WINGDIPAPI GdipAddPathBezier(GpPath *path, REAL x1, REAL y1, REAL x2,
REAL y2, REAL x3, REAL y3, REAL x4, REAL y4)
{
INT old_count;
TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n",
path, x1, y1, x2, y2, x3, y3, x4, y4);
if(!path)
return InvalidParameter;
if(!lengthen_path(path, 4))
return OutOfMemory;
old_count = path->pathdata.Count;
path->pathdata.Points[old_count].X = x1;
path->pathdata.Points[old_count].Y = y1;
path->pathdata.Points[old_count + 1].X = x2;
path->pathdata.Points[old_count + 1].Y = y2;
path->pathdata.Points[old_count + 2].X = x3;
path->pathdata.Points[old_count + 2].Y = y3;
path->pathdata.Points[old_count + 3].X = x4;
path->pathdata.Points[old_count + 3].Y = y4;
path->pathdata.Types[old_count] =
(path->newfigure ? PathPointTypeStart : PathPointTypeLine);
path->pathdata.Types[old_count + 1] = PathPointTypeBezier;
path->pathdata.Types[old_count + 2] = PathPointTypeBezier;
path->pathdata.Types[old_count + 3] = PathPointTypeBezier;
path->newfigure = FALSE;
path->pathdata.Count += 4;
return Ok;
}
GpStatus WINGDIPAPI GdipAddPathBezierI(GpPath *path, INT x1, INT y1, INT x2,
INT y2, INT x3, INT y3, INT x4, INT y4)
{
TRACE("(%p, %d, %d, %d, %d, %d, %d, %d, %d)\n",
path, x1, y1, x2, y2, x3, y3, x4, y4);
return GdipAddPathBezier(path,(REAL)x1,(REAL)y1,(REAL)x2,(REAL)y2,(REAL)x3,(REAL)y3,
(REAL)x4,(REAL)y4);
}
GpStatus WINGDIPAPI GdipAddPathBeziers(GpPath *path, GDIPCONST GpPointF *points,
INT count)
{
INT i, old_count;
TRACE("(%p, %p, %d)\n", path, points, count);
if(!path || !points || ((count - 1) % 3))
return InvalidParameter;
if(!lengthen_path(path, count))
return OutOfMemory;
old_count = path->pathdata.Count;
for(i = 0; i < count; i++){
path->pathdata.Points[old_count + i].X = points[i].X;
path->pathdata.Points[old_count + i].Y = points[i].Y;
path->pathdata.Types[old_count + i] = PathPointTypeBezier;
}
path->pathdata.Types[old_count] =
(path->newfigure ? PathPointTypeStart : PathPointTypeLine);
path->newfigure = FALSE;
path->pathdata.Count += count;
return Ok;
}
GpStatus WINGDIPAPI GdipAddPathBeziersI(GpPath *path, GDIPCONST GpPoint *points,
INT count)
{
GpPointF *ptsF;
GpStatus ret;
INT i;
TRACE("(%p, %p, %d)\n", path, points, count);
if(!points || ((count - 1) % 3))
return InvalidParameter;
ptsF = heap_alloc_zero(sizeof(GpPointF) * count);
if(!ptsF)
return OutOfMemory;
for(i = 0; i < count; i++){
ptsF[i].X = (REAL)points[i].X;
ptsF[i].Y = (REAL)points[i].Y;
}
ret = GdipAddPathBeziers(path, ptsF, count);
heap_free(ptsF);
return ret;
}
GpStatus WINGDIPAPI GdipAddPathClosedCurve(GpPath *path, GDIPCONST GpPointF *points,
INT count)
{
TRACE("(%p, %p, %d)\n", path, points, count);
return GdipAddPathClosedCurve2(path, points, count, 1.0);
}
GpStatus WINGDIPAPI GdipAddPathClosedCurveI(GpPath *path, GDIPCONST GpPoint *points,
INT count)
{
TRACE("(%p, %p, %d)\n", path, points, count);
return GdipAddPathClosedCurve2I(path, points, count, 1.0);
}
GpStatus WINGDIPAPI GdipAddPathClosedCurve2(GpPath *path, GDIPCONST GpPointF *points,
INT count, REAL tension)
{
INT i, len_pt = (count + 1)*3-2;
GpPointF *pt;
GpPointF *pts;
REAL x1, x2, y1, y2;
GpStatus stat;
TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
if(!path || !points || count <= 1)
return InvalidParameter;
pt = heap_alloc_zero(len_pt * sizeof(GpPointF));
pts = heap_alloc_zero((count + 1)*sizeof(GpPointF));
if(!pt || !pts){
heap_free(pt);
heap_free(pts);
return OutOfMemory;
}
/* copy source points to extend with the last one */
memcpy(pts, points, sizeof(GpPointF)*count);
pts[count] = pts[0];
tension = tension * TENSION_CONST;
for(i = 0; i < count-1; i++){
calc_curve_bezier(&(pts[i]), tension, &x1, &y1, &x2, &y2);
pt[3*i+2].X = x1;
pt[3*i+2].Y = y1;
pt[3*i+3].X = pts[i+1].X;
pt[3*i+3].Y = pts[i+1].Y;
pt[3*i+4].X = x2;
pt[3*i+4].Y = y2;
}
/* points [len_pt-2] and [0] are calculated
separately to connect splines properly */
pts[0] = points[count-1];
pts[1] = points[0]; /* equals to start and end of a resulting path */
pts[2] = points[1];
calc_curve_bezier(pts, tension, &x1, &y1, &x2, &y2);
pt[len_pt-2].X = x1;
pt[len_pt-2].Y = y1;
pt[0].X = pts[1].X;
pt[0].Y = pts[1].Y;
pt[1].X = x2;
pt[1].Y = y2;
/* close path */
pt[len_pt-1].X = pt[0].X;
pt[len_pt-1].Y = pt[0].Y;
stat = GdipAddPathBeziers(path, pt, len_pt);
/* close figure */
if(stat == Ok){
path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
path->newfigure = TRUE;
}
heap_free(pts);
heap_free(pt);
return stat;
}
GpStatus WINGDIPAPI GdipAddPathClosedCurve2I(GpPath *path, GDIPCONST GpPoint *points,
INT count, REAL tension)
{
GpPointF *ptf;
INT i;
GpStatus stat;
TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
if(!path || !points || count <= 1)
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 = GdipAddPathClosedCurve2(path, ptf, count, tension);
heap_free(ptf);
return stat;
}
GpStatus WINGDIPAPI GdipAddPathCurve(GpPath *path, GDIPCONST GpPointF *points, INT count)
{
TRACE("(%p, %p, %d)\n", path, points, count);
if(!path || !points || count <= 1)
return InvalidParameter;
return GdipAddPathCurve2(path, points, count, 1.0);
}
GpStatus WINGDIPAPI GdipAddPathCurveI(GpPath *path, GDIPCONST GpPoint *points, INT count)
{
TRACE("(%p, %p, %d)\n", path, points, count);
if(!path || !points || count <= 1)
return InvalidParameter;
return GdipAddPathCurve2I(path, points, count, 1.0);
}
GpStatus WINGDIPAPI GdipAddPathCurve2(GpPath *path, GDIPCONST GpPointF *points, INT count,
REAL tension)
{
INT i, len_pt = count*3-2;
GpPointF *pt;
REAL x1, x2, y1, y2;
GpStatus stat;
TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
if(!path || !points || count <= 1)
return InvalidParameter;
pt = heap_alloc_zero(len_pt * sizeof(GpPointF));
if(!pt)
return OutOfMemory;
tension = tension * TENSION_CONST;
calc_curve_bezier_endp(points[0].X, points[0].Y, points[1].X, points[1].Y,
tension, &x1, &y1);
pt[0].X = points[0].X;
pt[0].Y = points[0].Y;
pt[1].X = x1;
pt[1].Y = y1;
for(i = 0; i < count-2; i++){
calc_curve_bezier(&(points[i]), tension, &x1, &y1, &x2, &y2);
pt[3*i+2].X = x1;
pt[3*i+2].Y = y1;
pt[3*i+3].X = points[i+1].X;
pt[3*i+3].Y = points[i+1].Y;
pt[3*i+4].X = x2;
pt[3*i+4].Y = y2;
}
calc_curve_bezier_endp(points[count-1].X, points[count-1].Y,
points[count-2].X, points[count-2].Y, tension, &x1, &y1);
pt[len_pt-2].X = x1;
pt[len_pt-2].Y = y1;
pt[len_pt-1].X = points[count-1].X;
pt[len_pt-1].Y = points[count-1].Y;
stat = GdipAddPathBeziers(path, pt, len_pt);
heap_free(pt);
return stat;
}
GpStatus WINGDIPAPI GdipAddPathCurve2I(GpPath *path, GDIPCONST GpPoint *points,
INT count, REAL tension)
{
GpPointF *ptf;
INT i;
GpStatus stat;
TRACE("(%p, %p, %d, %.2f)\n", path, points, count, tension);
if(!path || !points || count <= 1)
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 = GdipAddPathCurve2(path, ptf, count, tension);
heap_free(ptf);
return stat;
}
GpStatus WINGDIPAPI GdipAddPathCurve3(GpPath *path, GDIPCONST GpPointF *points,
INT count, INT offset, INT nseg, REAL tension)
{
TRACE("(%p, %p, %d, %d, %d, %.2f)\n", path, points, count, offset, nseg, tension);
if(!path || !points || offset + 1 >= count || count - offset < nseg + 1)
return InvalidParameter;
return GdipAddPathCurve2(path, &points[offset], nseg + 1, tension);
}
GpStatus WINGDIPAPI GdipAddPathCurve3I(GpPath *path, GDIPCONST GpPoint *points,
INT count, INT offset, INT nseg, REAL tension)
{
TRACE("(%p, %p, %d, %d, %d, %.2f)\n", path, points, count, offset, nseg, tension);
if(!path || !points || offset + 1 >= count || count - offset < nseg + 1)
return InvalidParameter;
return GdipAddPathCurve2I(path, &points[offset], nseg + 1, tension);
}
GpStatus WINGDIPAPI GdipAddPathEllipse(GpPath *path, REAL x, REAL y, REAL width,
REAL height)
{
INT old_count, numpts;
TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x, y, width, height);
if(!path)
return InvalidParameter;
if(!lengthen_path(path, MAX_ARC_PTS))
return OutOfMemory;
old_count = path->pathdata.Count;
if((numpts = arc2polybezier(&path->pathdata.Points[old_count], x, y, width,
height, 0.0, 360.0)) != MAX_ARC_PTS){
ERR("expected %d points but got %d\n", MAX_ARC_PTS, numpts);
return GenericError;
}
memset(&path->pathdata.Types[old_count + 1], PathPointTypeBezier,
MAX_ARC_PTS - 1);
/* An ellipse is an intrinsic figure (always is its own subpath). */
path->pathdata.Types[old_count] = PathPointTypeStart;
path->pathdata.Types[old_count + MAX_ARC_PTS - 1] |= PathPointTypeCloseSubpath;
path->newfigure = TRUE;
path->pathdata.Count += MAX_ARC_PTS;
return Ok;
}
GpStatus WINGDIPAPI GdipAddPathEllipseI(GpPath *path, INT x, INT y, INT width,
INT height)
{
TRACE("(%p, %d, %d, %d, %d)\n", path, x, y, width, height);
return GdipAddPathEllipse(path,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
}
GpStatus WINGDIPAPI GdipAddPathLine2(GpPath *path, GDIPCONST GpPointF *points,
INT count)
{
INT i, old_count;
TRACE("(%p, %p, %d)\n", path, points, count);
if(!path || !points)
return InvalidParameter;
if(!lengthen_path(path, count))
return OutOfMemory;
old_count = path->pathdata.Count;
for(i = 0; i < count; i++){
path->pathdata.Points[old_count + i].X = points[i].X;
path->pathdata.Points[old_count + i].Y = points[i].Y;
path->pathdata.Types[old_count + i] = PathPointTypeLine;
}
if(path->newfigure){
path->pathdata.Types[old_count] = PathPointTypeStart;
path->newfigure = FALSE;
}
path->pathdata.Count += count;
return Ok;
}
GpStatus WINGDIPAPI GdipAddPathLine2I(GpPath *path, GDIPCONST GpPoint *points, INT count)
{
GpPointF *pointsF;
INT i;
GpStatus stat;
TRACE("(%p, %p, %d)\n", path, 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;
}
stat = GdipAddPathLine2(path, pointsF, count);
heap_free(pointsF);
return stat;
}
/*************************************************************************
* GdipAddPathLine [GDIPLUS.21]
*
* Add two points to the given path.
*
* PARAMS
* path [I/O] Path that the line is appended to
* x1 [I] X coordinate of the first point of the line
* y1 [I] Y coordinate of the first point of the line
* x2 [I] X coordinate of the second point of the line
* y2 [I] Y coordinate of the second point of the line
*
* RETURNS
* InvalidParameter If the first parameter is not a valid path
* OutOfMemory If the path cannot be lengthened, i.e. memory allocation fails
* Ok If everything works out as expected
*
* NOTES
* This functions takes the newfigure value of the given path into account,
* i.e. the two new points are connected to the end of the given path if it
* was set to FALSE, otherwise the first point is given the PathPointTypeStart
* value. In both cases, the value of newfigure of the given path is FALSE
* afterwards.
*/
GpStatus WINGDIPAPI GdipAddPathLine(GpPath *path, REAL x1, REAL y1, REAL x2, REAL y2)
{
INT old_count;
TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x1, y1, x2, y2);
if(!path)
return InvalidParameter;
if(!lengthen_path(path, 2))
return OutOfMemory;
old_count = path->pathdata.Count;
path->pathdata.Points[old_count].X = x1;
path->pathdata.Points[old_count].Y = y1;
path->pathdata.Points[old_count + 1].X = x2;
path->pathdata.Points[old_count + 1].Y = y2;
path->pathdata.Types[old_count] =
(path->newfigure ? PathPointTypeStart : PathPointTypeLine);
path->pathdata.Types[old_count + 1] = PathPointTypeLine;
path->newfigure = FALSE;
path->pathdata.Count += 2;
return Ok;
}
/*************************************************************************
* GdipAddPathLineI [GDIPLUS.21]
*
* See GdipAddPathLine
*/
GpStatus WINGDIPAPI GdipAddPathLineI(GpPath *path, INT x1, INT y1, INT x2, INT y2)
{
TRACE("(%p, %d, %d, %d, %d)\n", path, x1, y1, x2, y2);
return GdipAddPathLine(path, (REAL)x1, (REAL)y1, (REAL)x2, (REAL)y2);
}
GpStatus WINGDIPAPI GdipAddPathPath(GpPath *path, GDIPCONST GpPath* addingPath,
BOOL connect)
{
INT old_count, count;
TRACE("(%p, %p, %d)\n", path, addingPath, connect);
if(!path || !addingPath)
return InvalidParameter;
old_count = path->pathdata.Count;
count = addingPath->pathdata.Count;
if(!lengthen_path(path, count))
return OutOfMemory;
memcpy(&path->pathdata.Points[old_count], addingPath->pathdata.Points,
count * sizeof(GpPointF));
memcpy(&path->pathdata.Types[old_count], addingPath->pathdata.Types, count);
if(path->newfigure || !connect)
path->pathdata.Types[old_count] = PathPointTypeStart;
else
path->pathdata.Types[old_count] = PathPointTypeLine;
path->newfigure = FALSE;
path->pathdata.Count += count;
return Ok;
}
GpStatus WINGDIPAPI GdipAddPathPie(GpPath *path, REAL x, REAL y, REAL width, REAL height,
REAL startAngle, REAL sweepAngle)
{
GpPointF *ptf;
GpStatus status;
INT i, count;
TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n",
path, x, y, width, height, startAngle, sweepAngle);
if(!path)
return InvalidParameter;
/* on zero width/height only start point added */
if(width <= 1e-7 || height <= 1e-7){
if(!lengthen_path(path, 1))
return OutOfMemory;
path->pathdata.Points[0].X = x + width / 2.0;
path->pathdata.Points[0].Y = y + height / 2.0;
path->pathdata.Types[0] = PathPointTypeStart | PathPointTypeCloseSubpath;
path->pathdata.Count = 1;
return InvalidParameter;
}
count = arc2polybezier(NULL, x, y, width, height, startAngle, sweepAngle);
if(count == 0)
return Ok;
ptf = heap_alloc_zero(sizeof(GpPointF)*count);
if(!ptf)
return OutOfMemory;
arc2polybezier(ptf, x, y, width, height, startAngle, sweepAngle);
status = GdipAddPathLine(path, x + width/2, y + height/2, ptf[0].X, ptf[0].Y);
if(status != Ok){
heap_free(ptf);
return status;
}
/* one spline is already added as a line endpoint */
if(!lengthen_path(path, count - 1)){
heap_free(ptf);
return OutOfMemory;
}
memcpy(&(path->pathdata.Points[path->pathdata.Count]), &(ptf[1]),sizeof(GpPointF)*(count-1));
for(i = 0; i < count-1; i++)
path->pathdata.Types[path->pathdata.Count+i] = PathPointTypeBezier;
path->pathdata.Count += count-1;
GdipClosePathFigure(path);
heap_free(ptf);
return status;
}
GpStatus WINGDIPAPI GdipAddPathPieI(GpPath *path, INT x, INT y, INT width, INT height,
REAL startAngle, REAL sweepAngle)
{
TRACE("(%p, %d, %d, %d, %d, %.2f, %.2f)\n",
path, x, y, width, height, startAngle, sweepAngle);
return GdipAddPathPie(path, (REAL)x, (REAL)y, (REAL)width, (REAL)height, startAngle, sweepAngle);
}
GpStatus WINGDIPAPI GdipAddPathPolygon(GpPath *path, GDIPCONST GpPointF *points, INT count)
{
INT old_count;
TRACE("(%p, %p, %d)\n", path, points, count);
if(!path || !points || count < 3)
return InvalidParameter;
if(!lengthen_path(path, count))
return OutOfMemory;
old_count = path->pathdata.Count;
memcpy(&path->pathdata.Points[old_count], points, count*sizeof(GpPointF));
memset(&path->pathdata.Types[old_count + 1], PathPointTypeLine, count - 1);
/* A polygon is an intrinsic figure */
path->pathdata.Types[old_count] = PathPointTypeStart;
path->pathdata.Types[old_count + count - 1] |= PathPointTypeCloseSubpath;
path->newfigure = TRUE;
path->pathdata.Count += count;
return Ok;
}
GpStatus WINGDIPAPI GdipAddPathPolygonI(GpPath *path, GDIPCONST GpPoint *points, INT count)
{
GpPointF *ptf;
GpStatus status;
INT i;
TRACE("(%p, %p, %d)\n", path, points, count);
if(!points || count < 3)
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;
}
status = GdipAddPathPolygon(path, ptf, count);
heap_free(ptf);
return status;
}
static float fromfixedpoint(const FIXED v)
{
float f = ((float)v.fract) / (1<<(sizeof(v.fract)*8));
f += v.value;
return f;
}
struct format_string_args
{
GpPath *path;
float maxY;
float scale;
float ascent;
};
static GpStatus format_string_callback(HDC dc,
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 *priv)
{
static const MAT2 identity = { {0,1}, {0,0}, {0,0}, {0,1} };
struct format_string_args *args = priv;
GpPath *path = args->path;
GpStatus status = Ok;
float x = rect->X + (bounds->X - rect->X) * args->scale;
float y = rect->Y + (bounds->Y - rect->Y) * args->scale;
int i;
if (underlined_index_count)
FIXME("hotkey underlines not drawn yet\n");
if (y + bounds->Height * args->scale > args->maxY)
args->maxY = y + bounds->Height * args->scale;
for (i = index; i < length; ++i)
{
GLYPHMETRICS gm;
TTPOLYGONHEADER *ph = NULL, *origph;
char *start;
DWORD len, ofs = 0;
len = GetGlyphOutlineW(dc, string[i], GGO_BEZIER, &gm, 0, NULL, &identity);
if (len == GDI_ERROR)
{
status = GenericError;
break;
}
origph = ph = heap_alloc_zero(len);
start = (char *)ph;
if (!ph || !lengthen_path(path, len / sizeof(POINTFX)))
{
heap_free(ph);
status = OutOfMemory;
break;
}
GetGlyphOutlineW(dc, string[i], GGO_BEZIER, &gm, len, start, &identity);
ofs = 0;
while (ofs < len)
{
DWORD ofs_start = ofs;
ph = (TTPOLYGONHEADER*)&start[ofs];
path->pathdata.Types[path->pathdata.Count] = PathPointTypeStart;
path->pathdata.Points[path->pathdata.Count].X = x + fromfixedpoint(ph->pfxStart.x) * args->scale;
path->pathdata.Points[path->pathdata.Count++].Y = y + args->ascent - fromfixedpoint(ph->pfxStart.y) * args->scale;
TRACE("Starting at count %i with pos %f, %f)\n", path->pathdata.Count, x, y);
ofs += sizeof(*ph);
while (ofs - ofs_start < ph->cb)
{
TTPOLYCURVE *curve = (TTPOLYCURVE*)&start[ofs];
int j;
ofs += sizeof(TTPOLYCURVE) + (curve->cpfx - 1) * sizeof(POINTFX);
switch (curve->wType)
{
case TT_PRIM_LINE:
for (j = 0; j < curve->cpfx; ++j)
{
path->pathdata.Types[path->pathdata.Count] = PathPointTypeLine;
path->pathdata.Points[path->pathdata.Count].X = x + fromfixedpoint(curve->apfx[j].x) * args->scale;
path->pathdata.Points[path->pathdata.Count++].Y = y + args->ascent - fromfixedpoint(curve->apfx[j].y) * args->scale;
}
break;
case TT_PRIM_CSPLINE:
for (j = 0; j < curve->cpfx; ++j)
{
path->pathdata.Types[path->pathdata.Count] = PathPointTypeBezier;
path->pathdata.Points[path->pathdata.Count].X = x + fromfixedpoint(curve->apfx[j].x) * args->scale;
path->pathdata.Points[path->pathdata.Count++].Y = y + args->ascent - fromfixedpoint(curve->apfx[j].y) * args->scale;
}
break;
default:
ERR("Unhandled type: %u\n", curve->wType);
status = GenericError;
}
}
path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
}
path->newfigure = TRUE;
x += gm.gmCellIncX * args->scale;
y += gm.gmCellIncY * args->scale;
heap_free(origph);
if (status != Ok)
break;
}
return status;
}
GpStatus WINGDIPAPI GdipAddPathString(GpPath* path, GDIPCONST WCHAR* string, INT length, GDIPCONST GpFontFamily* family, INT style, REAL emSize, GDIPCONST RectF* layoutRect, GDIPCONST GpStringFormat* format)
{
GpFont *font;
GpStatus status;
LOGFONTW lfw;
HANDLE hfont;
HDC dc;
GpGraphics *graphics;
GpPath *backup;
struct format_string_args args;
int i;
UINT16 native_height;
RectF scaled_layout_rect;
TEXTMETRICW textmetric;
TRACE("(%p, %s, %d, %p, %d, %f, %p, %p)\n", path, debugstr_w(string), length, family, style, emSize, layoutRect, format);
if (!path || !string || !family || !emSize || !layoutRect || !format)
return InvalidParameter;
status = GdipGetEmHeight(family, style, &native_height);
if (status != Ok)
return status;
scaled_layout_rect.X = layoutRect->X;
scaled_layout_rect.Y = layoutRect->Y;
scaled_layout_rect.Width = layoutRect->Width * native_height / emSize;
scaled_layout_rect.Height = layoutRect->Height * native_height / emSize;
if ((status = GdipClonePath(path, &backup)) != Ok)
return status;
dc = CreateCompatibleDC(0);
status = GdipCreateFromHDC(dc, &graphics);
if (status != Ok)
{
DeleteDC(dc);
GdipDeletePath(backup);
return status;
}
status = GdipCreateFont(family, native_height, style, UnitPixel, &font);
if (status != Ok)
{
GdipDeleteGraphics(graphics);
DeleteDC(dc);
GdipDeletePath(backup);
return status;
}
get_log_fontW(font, graphics, &lfw);
GdipDeleteFont(font);
GdipDeleteGraphics(graphics);
hfont = CreateFontIndirectW(&lfw);
if (!hfont)
{
WARN("Failed to create font\n");
DeleteDC(dc);
GdipDeletePath(backup);
return GenericError;
}
SelectObject(dc, hfont);
GetTextMetricsW(dc, &textmetric);
args.path = path;
args.maxY = 0;
args.scale = emSize / native_height;
args.ascent = textmetric.tmAscent * args.scale;
status = gdip_format_string(dc, string, length, NULL, &scaled_layout_rect,
format, TRUE, format_string_callback, &args);
DeleteDC(dc);
DeleteObject(hfont);
if (status != Ok) /* free backup */
{
heap_free(path->pathdata.Points);
heap_free(path->pathdata.Types);
*path = *backup;
heap_free(backup);
return status;
}
if (format->line_align == StringAlignmentCenter && layoutRect->Y + args.maxY < layoutRect->Height)
{
float inc = layoutRect->Height + layoutRect->Y - args.maxY;
inc /= 2;
for (i = backup->pathdata.Count; i < path->pathdata.Count; ++i)
path->pathdata.Points[i].Y += inc;
} else if (format->line_align == StringAlignmentFar) {
float inc = layoutRect->Height + layoutRect->Y - args.maxY;
for (i = backup->pathdata.Count; i < path->pathdata.Count; ++i)
path->pathdata.Points[i].Y += inc;
}
GdipDeletePath(backup);
return status;
}
GpStatus WINGDIPAPI GdipAddPathStringI(GpPath* path, GDIPCONST WCHAR* string, INT length, GDIPCONST GpFontFamily* family, INT style, REAL emSize, GDIPCONST Rect* layoutRect, GDIPCONST GpStringFormat* format)
{
if (layoutRect)
{
RectF layoutRectF = {
(REAL)layoutRect->X,
(REAL)layoutRect->Y,
(REAL)layoutRect->Width,
(REAL)layoutRect->Height
};
return GdipAddPathString(path, string, length, family, style, emSize, &layoutRectF, format);
}
return InvalidParameter;
}
/*************************************************************************
* GdipClonePath [GDIPLUS.53]
*
* Duplicate the given path in memory.
*
* PARAMS
* path [I] The path to be duplicated
* clone [O] Pointer to the new path
*
* RETURNS
* InvalidParameter If the input path is invalid
* OutOfMemory If allocation of needed memory fails
* Ok If everything works out as expected
*/
GpStatus WINGDIPAPI GdipClonePath(GpPath* path, GpPath **clone)
{
TRACE("(%p, %p)\n", path, clone);
if(!path || !clone)
return InvalidParameter;
*clone = heap_alloc_zero(sizeof(GpPath));
if(!*clone) return OutOfMemory;
**clone = *path;
(*clone)->pathdata.Points = heap_alloc_zero(path->datalen * sizeof(PointF));
(*clone)->pathdata.Types = heap_alloc_zero(path->datalen);
if(!(*clone)->pathdata.Points || !(*clone)->pathdata.Types){
heap_free((*clone)->pathdata.Points);
heap_free((*clone)->pathdata.Types);
heap_free(*clone);
return OutOfMemory;
}
memcpy((*clone)->pathdata.Points, path->pathdata.Points,
path->datalen * sizeof(PointF));
memcpy((*clone)->pathdata.Types, path->pathdata.Types, path->datalen);
return Ok;
}
GpStatus WINGDIPAPI GdipClosePathFigure(GpPath* path)
{
TRACE("(%p)\n", path);
if(!path)
return InvalidParameter;
if(path->pathdata.Count > 0){
path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
path->newfigure = TRUE;
}
return Ok;
}
GpStatus WINGDIPAPI GdipClosePathFigures(GpPath* path)
{
INT i;
TRACE("(%p)\n", path);
if(!path)
return InvalidParameter;
for(i = 1; i < path->pathdata.Count; i++){
if(path->pathdata.Types[i] == PathPointTypeStart)
path->pathdata.Types[i-1] |= PathPointTypeCloseSubpath;
}
path->newfigure = TRUE;
return Ok;
}
GpStatus WINGDIPAPI GdipCreatePath(GpFillMode fill, GpPath **path)
{
TRACE("(%d, %p)\n", fill, path);
if(!path)
return InvalidParameter;
*path = heap_alloc_zero(sizeof(GpPath));
if(!*path) return OutOfMemory;
(*path)->fill = fill;
(*path)->newfigure = TRUE;
return Ok;
}
GpStatus WINGDIPAPI GdipCreatePath2(GDIPCONST GpPointF* points,
GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
{
TRACE("(%p, %p, %d, %d, %p)\n", points, types, count, fill, path);
if(!path)
return InvalidParameter;
*path = heap_alloc_zero(sizeof(GpPath));
if(!*path) return OutOfMemory;
(*path)->pathdata.Points = heap_alloc_zero(count * sizeof(PointF));
(*path)->pathdata.Types = heap_alloc_zero(count);
if(!(*path)->pathdata.Points || !(*path)->pathdata.Types){
heap_free((*path)->pathdata.Points);
heap_free((*path)->pathdata.Types);
heap_free(*path);
return OutOfMemory;
}
memcpy((*path)->pathdata.Points, points, count * sizeof(PointF));
memcpy((*path)->pathdata.Types, types, count);
(*path)->pathdata.Count = count;
(*path)->datalen = count;
(*path)->fill = fill;
(*path)->newfigure = TRUE;
return Ok;
}
GpStatus WINGDIPAPI GdipCreatePath2I(GDIPCONST GpPoint* points,
GDIPCONST BYTE* types, INT count, GpFillMode fill, GpPath **path)
{
GpPointF *ptF;
GpStatus ret;
INT i;
TRACE("(%p, %p, %d, %d, %p)\n", points, types, count, fill, path);
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 = GdipCreatePath2(ptF, types, count, fill, path);
heap_free(ptF);
return ret;
}
GpStatus WINGDIPAPI GdipDeletePath(GpPath *path)
{
TRACE("(%p)\n", path);
if(!path)
return InvalidParameter;
heap_free(path->pathdata.Points);
heap_free(path->pathdata.Types);
heap_free(path);
return Ok;
}
GpStatus WINGDIPAPI GdipFlattenPath(GpPath *path, GpMatrix* matrix, REAL flatness)
{
path_list_node_t *list, *node;
GpPointF pt;
INT i = 1;
INT startidx = 0;
GpStatus stat;
TRACE("(%p, %p, %.2f)\n", path, matrix, flatness);
if(!path)
return InvalidParameter;
if(path->pathdata.Count == 0)
return Ok;
stat = GdipTransformPath(path, matrix);
if(stat != Ok)
return stat;
pt = path->pathdata.Points[0];
if(!init_path_list(&list, pt.X, pt.Y))
return OutOfMemory;
node = list;
while(i < path->pathdata.Count){
BYTE type = path->pathdata.Types[i] & PathPointTypePathTypeMask;
path_list_node_t *start;
pt = path->pathdata.Points[i];
/* save last start point index */
if(type == PathPointTypeStart)
startidx = i;
/* always add line points and start points */
if((type == PathPointTypeStart) || (type == PathPointTypeLine)){
if(!add_path_list_node(node, pt.X, pt.Y, path->pathdata.Types[i]))
goto memout;
node = node->next;
++i;
continue;
}
/* Bezier curve */
/* test for closed figure */
if(path->pathdata.Types[i+1] & PathPointTypeCloseSubpath){
pt = path->pathdata.Points[startidx];
++i;
}
else
{
i += 2;
pt = path->pathdata.Points[i];
};
start = node;
/* add Bezier end point */
type = (path->pathdata.Types[i] & ~PathPointTypePathTypeMask) | PathPointTypeLine;
if(!add_path_list_node(node, pt.X, pt.Y, type))
goto memout;
node = node->next;
/* flatten curve */
if(!flatten_bezier(start, path->pathdata.Points[i-2].X, path->pathdata.Points[i-2].Y,
path->pathdata.Points[i-1].X, path->pathdata.Points[i-1].Y,
node, flatness))
goto memout;
++i;
}/* while */
/* store path data back */
i = path_list_count(list);
if(!lengthen_path(path, i))
goto memout;
path->pathdata.Count = i;
node = list;
for(i = 0; i < path->pathdata.Count; i++){
path->pathdata.Points[i] = node->pt;
path->pathdata.Types[i] = node->type;
node = node->next;
}
free_path_list(list);
return Ok;
memout:
free_path_list(list);
return OutOfMemory;
}
GpStatus WINGDIPAPI GdipGetPathData(GpPath *path, GpPathData* pathData)
{
TRACE("(%p, %p)\n", path, pathData);
if(!path || !pathData)
return InvalidParameter;
/* Only copy data. pathData allocation/freeing controlled by wrapper class.
Assumed that pathData is enough wide to get all data - controlled by wrapper too. */
memcpy(pathData->Points, path->pathdata.Points, sizeof(PointF) * pathData->Count);
memcpy(pathData->Types , path->pathdata.Types , pathData->Count);
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathFillMode(GpPath *path, GpFillMode *fillmode)
{
TRACE("(%p, %p)\n", path, fillmode);
if(!path || !fillmode)
return InvalidParameter;
*fillmode = path->fill;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathLastPoint(GpPath* path, GpPointF* lastPoint)
{
INT count;
TRACE("(%p, %p)\n", path, lastPoint);
if(!path || !lastPoint)
return InvalidParameter;
count = path->pathdata.Count;
if(count > 0)
*lastPoint = path->pathdata.Points[count-1];
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathPoints(GpPath *path, GpPointF* points, INT count)
{
TRACE("(%p, %p, %d)\n", path, points, count);
if(!path)
return InvalidParameter;
if(count < path->pathdata.Count)
return InsufficientBuffer;
memcpy(points, path->pathdata.Points, path->pathdata.Count * sizeof(GpPointF));
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathPointsI(GpPath *path, GpPoint* points, INT count)
{
GpStatus ret;
GpPointF *ptf;
INT i;
TRACE("(%p, %p, %d)\n", path, points, count);
if(count <= 0)
return InvalidParameter;
ptf = heap_alloc_zero(sizeof(GpPointF)*count);
if(!ptf) return OutOfMemory;
ret = GdipGetPathPoints(path,ptf,count);
if(ret == Ok)
for(i = 0;i < count;i++){
points[i].X = gdip_round(ptf[i].X);
points[i].Y = gdip_round(ptf[i].Y);
};
heap_free(ptf);
return ret;
}
GpStatus WINGDIPAPI GdipGetPathTypes(GpPath *path, BYTE* types, INT count)
{
TRACE("(%p, %p, %d)\n", path, types, count);
if(!path)
return InvalidParameter;
if(count < path->pathdata.Count)
return InsufficientBuffer;
memcpy(types, path->pathdata.Types, path->pathdata.Count);
return Ok;
}
/* Windows expands the bounding box to the maximum possible bounding box
* for a given pen. For example, if a line join can extend past the point
* it's joining by x units, the bounding box is extended by x units in every
* direction (even though this is too conservative for most cases). */
GpStatus WINGDIPAPI GdipGetPathWorldBounds(GpPath* path, GpRectF* bounds,
GDIPCONST GpMatrix *matrix, GDIPCONST GpPen *pen)
{
GpPointF * points, temp_pts[4];
INT count, i;
REAL path_width = 1.0, width, height, temp, low_x, low_y, high_x, high_y;
TRACE("(%p, %p, %p, %p)\n", path, bounds, matrix, pen);
/* Matrix and pen can be null. */
if(!path || !bounds)
return InvalidParameter;
/* If path is empty just return. */
count = path->pathdata.Count;
if(count == 0){
bounds->X = bounds->Y = bounds->Width = bounds->Height = 0.0;
return Ok;
}
points = path->pathdata.Points;
low_x = high_x = points[0].X;
low_y = high_y = points[0].Y;
for(i = 1; i < count; i++){
low_x = min(low_x, points[i].X);
low_y = min(low_y, points[i].Y);
high_x = max(high_x, points[i].X);
high_y = max(high_y, points[i].Y);
}
width = high_x - low_x;
height = high_y - low_y;
/* This looks unusual but it's the only way I can imitate windows. */
if(matrix){
temp_pts[0].X = low_x;
temp_pts[0].Y = low_y;
temp_pts[1].X = low_x;
temp_pts[1].Y = high_y;
temp_pts[2].X = high_x;
temp_pts[2].Y = high_y;
temp_pts[3].X = high_x;
temp_pts[3].Y = low_y;
GdipTransformMatrixPoints((GpMatrix*)matrix, temp_pts, 4);
low_x = temp_pts[0].X;
low_y = temp_pts[0].Y;
for(i = 1; i < 4; i++){
low_x = min(low_x, temp_pts[i].X);
low_y = min(low_y, temp_pts[i].Y);
}
temp = width;
width = height * fabs(matrix->matrix[2]) + width * fabs(matrix->matrix[0]);
height = height * fabs(matrix->matrix[3]) + temp * fabs(matrix->matrix[1]);
}
if(pen){
path_width = pen->width / 2.0;
if(count > 2)
path_width = max(path_width, pen->width * pen->miterlimit / 2.0);
/* FIXME: this should probably also check for the startcap */
if(pen->endcap & LineCapNoAnchor)
path_width = max(path_width, pen->width * 2.2);
low_x -= path_width;
low_y -= path_width;
width += 2.0 * path_width;
height += 2.0 * path_width;
}
bounds->X = low_x;
bounds->Y = low_y;
bounds->Width = width;
bounds->Height = height;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathWorldBoundsI(GpPath* path, GpRect* bounds,
GDIPCONST GpMatrix *matrix, GDIPCONST GpPen *pen)
{
GpStatus ret;
GpRectF boundsF;
TRACE("(%p, %p, %p, %p)\n", path, bounds, matrix, pen);
ret = GdipGetPathWorldBounds(path,&boundsF,matrix,pen);
if(ret == Ok){
bounds->X = gdip_round(boundsF.X);
bounds->Y = gdip_round(boundsF.Y);
bounds->Width = gdip_round(boundsF.Width);
bounds->Height = gdip_round(boundsF.Height);
}
return ret;
}
GpStatus WINGDIPAPI GdipGetPointCount(GpPath *path, INT *count)
{
TRACE("(%p, %p)\n", path, count);
if(!path)
return InvalidParameter;
*count = path->pathdata.Count;
return Ok;
}
GpStatus WINGDIPAPI GdipReversePath(GpPath* path)
{
INT i, count;
INT start = 0; /* position in reversed path */
GpPathData revpath;
TRACE("(%p)\n", path);
if(!path)
return InvalidParameter;
count = path->pathdata.Count;
if(count == 0) return Ok;
revpath.Points = heap_alloc_zero(sizeof(GpPointF)*count);
revpath.Types = heap_alloc_zero(sizeof(BYTE)*count);
revpath.Count = count;
if(!revpath.Points || !revpath.Types){
heap_free(revpath.Points);
heap_free(revpath.Types);
return OutOfMemory;
}
for(i = 0; i < count; i++){
/* find next start point */
if(path->pathdata.Types[count-i-1] == PathPointTypeStart){
INT j;
for(j = start; j <= i; j++){
revpath.Points[j] = path->pathdata.Points[count-j-1];
revpath.Types[j] = path->pathdata.Types[count-j-1];
}
/* mark start point */
revpath.Types[start] = PathPointTypeStart;
/* set 'figure' endpoint type */
if(i-start > 1){
revpath.Types[i] = path->pathdata.Types[count-start-1] & ~PathPointTypePathTypeMask;
revpath.Types[i] |= revpath.Types[i-1];
}
else
revpath.Types[i] = path->pathdata.Types[start];
start = i+1;
}
}
memcpy(path->pathdata.Points, revpath.Points, sizeof(GpPointF)*count);
memcpy(path->pathdata.Types, revpath.Types, sizeof(BYTE)*count);
heap_free(revpath.Points);
heap_free(revpath.Types);
return Ok;
}
GpStatus WINGDIPAPI GdipIsOutlineVisiblePathPointI(GpPath* path, INT x, INT y,
GpPen *pen, GpGraphics *graphics, BOOL *result)
{
TRACE("(%p, %d, %d, %p, %p, %p)\n", path, x, y, pen, graphics, result);
return GdipIsOutlineVisiblePathPoint(path, x, y, pen, graphics, result);
}
GpStatus WINGDIPAPI GdipIsOutlineVisiblePathPoint(GpPath* path, REAL x, REAL y,
GpPen *pen, GpGraphics *graphics, BOOL *result)
{
GpStatus stat;
GpPath *wide_path;
GpMatrix *transform = NULL;
TRACE("(%p,%0.2f,%0.2f,%p,%p,%p)\n", path, x, y, pen, graphics, result);
if(!path || !pen)
return InvalidParameter;
stat = GdipClonePath(path, &wide_path);
if (stat != Ok)
return stat;
if (pen->unit == UnitPixel && graphics != NULL)
{
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 && graphics != NULL)
{
if (stat == Ok)
stat = GdipInvertMatrix(transform);
if (stat == Ok)
stat = GdipTransformPath(wide_path, transform);
}
if (stat == Ok)
stat = GdipIsVisiblePathPoint(wide_path, x, y, graphics, result);
GdipDeleteMatrix(transform);
GdipDeletePath(wide_path);
return stat;
}
GpStatus WINGDIPAPI GdipIsVisiblePathPointI(GpPath* path, INT x, INT y, GpGraphics *graphics, BOOL *result)
{
TRACE("(%p, %d, %d, %p, %p)\n", path, x, y, graphics, result);
return GdipIsVisiblePathPoint(path, x, y, graphics, result);
}
/*****************************************************************************
* GdipIsVisiblePathPoint [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipIsVisiblePathPoint(GpPath* path, REAL x, REAL y, GpGraphics *graphics, BOOL *result)
{
GpRegion *region;
HRGN hrgn;
GpStatus status;
if(!path || !result) return InvalidParameter;
status = GdipCreateRegionPath(path, &region);
if(status != Ok)
return status;
status = GdipGetRegionHRgn(region, graphics, &hrgn);
if(status != Ok){
GdipDeleteRegion(region);
return status;
}
*result = PtInRegion(hrgn, gdip_round(x), gdip_round(y));
DeleteObject(hrgn);
GdipDeleteRegion(region);
return Ok;
}
GpStatus WINGDIPAPI GdipStartPathFigure(GpPath *path)
{
TRACE("(%p)\n", path);
if(!path)
return InvalidParameter;
path->newfigure = TRUE;
return Ok;
}
GpStatus WINGDIPAPI GdipResetPath(GpPath *path)
{
TRACE("(%p)\n", path);
if(!path)
return InvalidParameter;
path->pathdata.Count = 0;
path->newfigure = TRUE;
path->fill = FillModeAlternate;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPathFillMode(GpPath *path, GpFillMode fill)
{
TRACE("(%p, %d)\n", path, fill);
if(!path)
return InvalidParameter;
path->fill = fill;
return Ok;
}
GpStatus WINGDIPAPI GdipTransformPath(GpPath *path, GpMatrix *matrix)
{
TRACE("(%p, %p)\n", path, matrix);
if(!path)
return InvalidParameter;
if(path->pathdata.Count == 0 || !matrix)
return Ok;
return GdipTransformMatrixPoints(matrix, path->pathdata.Points,
path->pathdata.Count);
}
GpStatus WINGDIPAPI GdipWarpPath(GpPath *path, GpMatrix* matrix,
GDIPCONST GpPointF *points, INT count, REAL x, REAL y, REAL width,
REAL height, WarpMode warpmode, REAL flatness)
{
FIXME("(%p,%p,%p,%i,%0.2f,%0.2f,%0.2f,%0.2f,%i,%0.2f)\n", path, matrix,
points, count, x, y, width, height, warpmode, flatness);
return NotImplemented;
}
static void add_bevel_point(const GpPointF *endpoint, const GpPointF *nextpoint,
REAL pen_width, int right_side, path_list_node_t **last_point)
{
REAL segment_dy = nextpoint->Y-endpoint->Y;
REAL segment_dx = nextpoint->X-endpoint->X;
REAL segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
REAL distance = pen_width / 2.0;
REAL bevel_dx, bevel_dy;
if (segment_length == 0.0)
{
*last_point = add_path_list_node(*last_point, endpoint->X,
endpoint->Y, PathPointTypeLine);
return;
}
if (right_side)
{
bevel_dx = -distance * segment_dy / segment_length;
bevel_dy = distance * segment_dx / segment_length;
}
else
{
bevel_dx = distance * segment_dy / segment_length;
bevel_dy = -distance * segment_dx / segment_length;
}
*last_point = add_path_list_node(*last_point, endpoint->X + bevel_dx,
endpoint->Y + bevel_dy, PathPointTypeLine);
}
static void widen_joint(const GpPointF *p1, const GpPointF *p2, const GpPointF *p3,
GpPen* pen, REAL pen_width, path_list_node_t **last_point)
{
switch (pen->join)
{
case LineJoinMiter:
case LineJoinMiterClipped:
if ((p2->X - p1->X) * (p3->Y - p1->Y) > (p2->Y - p1->Y) * (p3->X - p1->X))
{
float distance = pen_width / 2.0;
float length_0 = sqrtf((p2->X-p1->X)*(p2->X-p1->X)+(p2->Y-p1->Y)*(p2->Y-p1->Y));
float length_1 = sqrtf((p3->X-p2->X)*(p3->X-p2->X)+(p3->Y-p2->Y)*(p3->Y-p2->Y));
float dx0 = distance * (p2->X - p1->X) / length_0;
float dy0 = distance * (p2->Y - p1->Y) / length_0;
float dx1 = distance * (p3->X - p2->X) / length_1;
float dy1 = distance * (p3->Y - p2->Y) / length_1;
float det = (dy0*dx1 - dx0*dy1);
float dx = (dx0*dx1*(dx0-dx1) + dy0*dy0*dx1 - dy1*dy1*dx0)/det;
float dy = (dy0*dy1*(dy0-dy1) + dx0*dx0*dy1 - dx1*dx1*dy0)/det;
if (dx*dx + dy*dy < pen->miterlimit*pen->miterlimit * distance*distance)
{
*last_point = add_path_list_node(*last_point, p2->X + dx,
p2->Y + dy, PathPointTypeLine);
break;
}
else if (pen->join == LineJoinMiter)
{
static int once;
if (!once++)
FIXME("should add a clipped corner\n");
}
/* else fall-through */
}
/* else fall-through */
default:
case LineJoinBevel:
add_bevel_point(p2, p1, pen_width, 1, last_point);
add_bevel_point(p2, p3, pen_width, 0, last_point);
break;
}
}
static void widen_cap(const GpPointF *endpoint, const GpPointF *nextpoint,
REAL pen_width, GpLineCap cap, GpCustomLineCap *custom, int add_first_points,
int add_last_point, path_list_node_t **last_point)
{
switch (cap)
{
default:
case LineCapFlat:
if (add_first_points)
add_bevel_point(endpoint, nextpoint, pen_width, 1, last_point);
if (add_last_point)
add_bevel_point(endpoint, nextpoint, pen_width, 0, last_point);
break;
case LineCapSquare:
{
REAL segment_dy = nextpoint->Y-endpoint->Y;
REAL segment_dx = nextpoint->X-endpoint->X;
REAL segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
REAL distance = pen_width / 2.0;
REAL bevel_dx, bevel_dy;
REAL extend_dx, extend_dy;
extend_dx = -distance * segment_dx / segment_length;
extend_dy = -distance * segment_dy / segment_length;
bevel_dx = -distance * segment_dy / segment_length;
bevel_dy = distance * segment_dx / segment_length;
if (add_first_points)
*last_point = add_path_list_node(*last_point, endpoint->X + extend_dx + bevel_dx,
endpoint->Y + extend_dy + bevel_dy, PathPointTypeLine);
if (add_last_point)
*last_point = add_path_list_node(*last_point, endpoint->X + extend_dx - bevel_dx,
endpoint->Y + extend_dy - bevel_dy, PathPointTypeLine);
break;
}
case LineCapRound:
{
REAL segment_dy = nextpoint->Y-endpoint->Y;
REAL segment_dx = nextpoint->X-endpoint->X;
REAL segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
REAL distance = pen_width / 2.0;
REAL dx, dy, dx2, dy2;
const REAL control_point_distance = 0.5522847498307935; /* 4/3 * (sqrt(2) - 1) */
if (add_first_points)
{
dx = -distance * segment_dx / segment_length;
dy = -distance * segment_dy / segment_length;
dx2 = dx * control_point_distance;
dy2 = dy * control_point_distance;
/* first 90-degree arc */
*last_point = add_path_list_node(*last_point, endpoint->X + dy,
endpoint->Y - dx, PathPointTypeLine);
*last_point = add_path_list_node(*last_point, endpoint->X + dy + dx2,
endpoint->Y - dx + dy2, PathPointTypeBezier);
*last_point = add_path_list_node(*last_point, endpoint->X + dx + dy2,
endpoint->Y + dy - dx2, PathPointTypeBezier);
/* midpoint */
*last_point = add_path_list_node(*last_point, endpoint->X + dx,
endpoint->Y + dy, PathPointTypeBezier);
/* second 90-degree arc */
*last_point = add_path_list_node(*last_point, endpoint->X + dx - dy2,
endpoint->Y + dy + dx2, PathPointTypeBezier);
*last_point = add_path_list_node(*last_point, endpoint->X - dy + dx2,
endpoint->Y + dx + dy2, PathPointTypeBezier);
*last_point = add_path_list_node(*last_point, endpoint->X - dy,
endpoint->Y + dx, PathPointTypeBezier);
}
else if (add_last_point)
add_bevel_point(endpoint, nextpoint, pen_width, 0, last_point);
break;
}
case LineCapTriangle:
{
REAL segment_dy = nextpoint->Y-endpoint->Y;
REAL segment_dx = nextpoint->X-endpoint->X;
REAL segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
REAL distance = pen_width / 2.0;
REAL dx, dy;
dx = distance * segment_dx / segment_length;
dy = distance * segment_dy / segment_length;
if (add_first_points) {
add_bevel_point(endpoint, nextpoint, pen_width, 1, last_point);
*last_point = add_path_list_node(*last_point, endpoint->X - dx,
endpoint->Y - dy, PathPointTypeLine);
}
if (add_first_points || add_last_point)
add_bevel_point(endpoint, nextpoint, pen_width, 0, last_point);
break;
}
}
}
static void add_anchor(const GpPointF *endpoint, const GpPointF *nextpoint,
REAL pen_width, GpLineCap cap, GpCustomLineCap *custom, path_list_node_t **last_point)
{
switch (cap)
{
default:
case LineCapNoAnchor:
return;
case LineCapSquareAnchor:
{
REAL segment_dy = nextpoint->Y-endpoint->Y;
REAL segment_dx = nextpoint->X-endpoint->X;
REAL segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
REAL distance = pen_width / sqrtf(2.0);
REAL par_dx, par_dy;
REAL perp_dx, perp_dy;
par_dx = -distance * segment_dx / segment_length;
par_dy = -distance * segment_dy / segment_length;
perp_dx = -distance * segment_dy / segment_length;
perp_dy = distance * segment_dx / segment_length;
*last_point = add_path_list_node(*last_point, endpoint->X - par_dx - perp_dx,
endpoint->Y - par_dy - perp_dy, PathPointTypeStart);
*last_point = add_path_list_node(*last_point, endpoint->X - par_dx + perp_dx,
endpoint->Y - par_dy + perp_dy, PathPointTypeLine);
*last_point = add_path_list_node(*last_point, endpoint->X + par_dx + perp_dx,
endpoint->Y + par_dy + perp_dy, PathPointTypeLine);
*last_point = add_path_list_node(*last_point, endpoint->X + par_dx - perp_dx,
endpoint->Y + par_dy - perp_dy, PathPointTypeLine);
break;
}
case LineCapRoundAnchor:
{
REAL segment_dy = nextpoint->Y-endpoint->Y;
REAL segment_dx = nextpoint->X-endpoint->X;
REAL segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
REAL dx, dy, dx2, dy2;
const REAL control_point_distance = 0.55228475; /* 4/3 * (sqrt(2) - 1) */
dx = -pen_width * segment_dx / segment_length;
dy = -pen_width * segment_dy / segment_length;
dx2 = dx * control_point_distance;
dy2 = dy * control_point_distance;
/* starting point */
*last_point = add_path_list_node(*last_point, endpoint->X + dy,
endpoint->Y - dx, PathPointTypeStart);
/* first 90-degree arc */
*last_point = add_path_list_node(*last_point, endpoint->X + dy + dx2,
endpoint->Y - dx + dy2, PathPointTypeBezier);
*last_point = add_path_list_node(*last_point, endpoint->X + dx + dy2,
endpoint->Y + dy - dx2, PathPointTypeBezier);
*last_point = add_path_list_node(*last_point, endpoint->X + dx,
endpoint->Y + dy, PathPointTypeBezier);
/* second 90-degree arc */
*last_point = add_path_list_node(*last_point, endpoint->X + dx - dy2,
endpoint->Y + dy + dx2, PathPointTypeBezier);
*last_point = add_path_list_node(*last_point, endpoint->X - dy + dx2,
endpoint->Y + dx + dy2, PathPointTypeBezier);
*last_point = add_path_list_node(*last_point, endpoint->X - dy,
endpoint->Y + dx, PathPointTypeBezier);
/* third 90-degree arc */
*last_point = add_path_list_node(*last_point, endpoint->X - dy - dx2,
endpoint->Y + dx - dy2, PathPointTypeBezier);
*last_point = add_path_list_node(*last_point, endpoint->X - dx - dy2,
endpoint->Y - dy + dx2, PathPointTypeBezier);
*last_point = add_path_list_node(*last_point, endpoint->X - dx,
endpoint->Y - dy, PathPointTypeBezier);
/* fourth 90-degree arc */
*last_point = add_path_list_node(*last_point, endpoint->X - dx + dy2,
endpoint->Y - dy - dx2, PathPointTypeBezier);
*last_point = add_path_list_node(*last_point, endpoint->X + dy - dx2,
endpoint->Y - dx - dy2, PathPointTypeBezier);
*last_point = add_path_list_node(*last_point, endpoint->X + dy,
endpoint->Y - dx, PathPointTypeBezier);
break;
}
case LineCapDiamondAnchor:
{
REAL segment_dy = nextpoint->Y-endpoint->Y;
REAL segment_dx = nextpoint->X-endpoint->X;
REAL segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
REAL par_dx, par_dy;
REAL perp_dx, perp_dy;
par_dx = -pen_width * segment_dx / segment_length;
par_dy = -pen_width * segment_dy / segment_length;
perp_dx = -pen_width * segment_dy / segment_length;
perp_dy = pen_width * segment_dx / segment_length;
*last_point = add_path_list_node(*last_point, endpoint->X + par_dx,
endpoint->Y + par_dy, PathPointTypeStart);
*last_point = add_path_list_node(*last_point, endpoint->X - perp_dx,
endpoint->Y - perp_dy, PathPointTypeLine);
*last_point = add_path_list_node(*last_point, endpoint->X - par_dx,
endpoint->Y - par_dy, PathPointTypeLine);
*last_point = add_path_list_node(*last_point, endpoint->X + perp_dx,
endpoint->Y + perp_dy, PathPointTypeLine);
break;
}
}
(*last_point)->type |= PathPointTypeCloseSubpath;
}
static void widen_open_figure(const GpPointF *points, int start, int end,
GpPen *pen, REAL pen_width, GpLineCap start_cap, GpCustomLineCap *start_custom,
GpLineCap end_cap, GpCustomLineCap *end_custom, path_list_node_t **last_point)
{
int i;
path_list_node_t *prev_point;
if (end <= start || pen_width == 0.0)
return;
prev_point = *last_point;
widen_cap(&points[start], &points[start+1],
pen_width, start_cap, start_custom, FALSE, TRUE, last_point);
for (i=start+1; i<end; i++)
widen_joint(&points[i-1], &points[i], &points[i+1],
pen, pen_width, last_point);
widen_cap(&points[end], &points[end-1],
pen_width, end_cap, end_custom, TRUE, TRUE, last_point);
for (i=end-1; i>start; i--)
widen_joint(&points[i+1], &points[i], &points[i-1],
pen, pen_width, last_point);
widen_cap(&points[start], &points[start+1],
pen_width, start_cap, start_custom, TRUE, FALSE, last_point);
prev_point->next->type = PathPointTypeStart;
(*last_point)->type |= PathPointTypeCloseSubpath;
}
static void widen_closed_figure(GpPath *path, int start, int end,
GpPen *pen, REAL pen_width, path_list_node_t **last_point)
{
int i;
path_list_node_t *prev_point;
if (end <= start || pen_width == 0.0)
return;
/* left outline */
prev_point = *last_point;
widen_joint(&path->pathdata.Points[end], &path->pathdata.Points[start],
&path->pathdata.Points[start+1], pen, pen_width, last_point);
for (i=start+1; i<end; i++)
widen_joint(&path->pathdata.Points[i-1], &path->pathdata.Points[i],
&path->pathdata.Points[i+1], pen, pen_width, last_point);
widen_joint(&path->pathdata.Points[end-1], &path->pathdata.Points[end],
&path->pathdata.Points[start], pen, pen_width, last_point);
prev_point->next->type = PathPointTypeStart;
(*last_point)->type |= PathPointTypeCloseSubpath;
/* right outline */
prev_point = *last_point;
widen_joint(&path->pathdata.Points[start], &path->pathdata.Points[end],
&path->pathdata.Points[end-1], pen, pen_width, last_point);
for (i=end-1; i>start; i--)
widen_joint(&path->pathdata.Points[i+1], &path->pathdata.Points[i],
&path->pathdata.Points[i-1], pen, pen_width, last_point);
widen_joint(&path->pathdata.Points[start+1], &path->pathdata.Points[start],
&path->pathdata.Points[end], pen, pen_width, last_point);
prev_point->next->type = PathPointTypeStart;
(*last_point)->type |= PathPointTypeCloseSubpath;
}
static void widen_dashed_figure(GpPath *path, int start, int end, int closed,
GpPen *pen, REAL pen_width, path_list_node_t **last_point)
{
int i, j;
REAL dash_pos=0.0;
int dash_index=0;
const REAL *dash_pattern;
REAL *dash_pattern_scaled;
int dash_count;
GpPointF *tmp_points;
REAL segment_dy;
REAL segment_dx;
REAL segment_length;
REAL segment_pos;
int num_tmp_points=0;
int draw_start_cap=0;
static const REAL dash_dot_dot[6] = { 3.0, 1.0, 1.0, 1.0, 1.0, 1.0 };
if (end <= start || pen_width == 0.0)
return;
switch (pen->dash)
{
case DashStyleDash:
default:
dash_pattern = dash_dot_dot;
dash_count = 2;
break;
case DashStyleDot:
dash_pattern = &dash_dot_dot[2];
dash_count = 2;
break;
case DashStyleDashDot:
dash_pattern = dash_dot_dot;
dash_count = 4;
break;
case DashStyleDashDotDot:
dash_pattern = dash_dot_dot;
dash_count = 6;
break;
case DashStyleCustom:
dash_pattern = pen->dashes;
dash_count = pen->numdashes;
break;
}
dash_pattern_scaled = heap_alloc(dash_count * sizeof(REAL));
if (!dash_pattern_scaled) return;
for (i = 0; i < dash_count; i++)
dash_pattern_scaled[i] = pen->width * dash_pattern[i];
tmp_points = heap_alloc_zero((end - start + 2) * sizeof(GpPoint));
if (!tmp_points) {
heap_free(dash_pattern_scaled);
return; /* FIXME */
}
if (!closed)
draw_start_cap = 1;
for (j=start; j <= end; j++)
{
if (j == start)
{
if (closed)
i = end;
else
continue;
}
else
i = j-1;
segment_dy = path->pathdata.Points[j].Y - path->pathdata.Points[i].Y;
segment_dx = path->pathdata.Points[j].X - path->pathdata.Points[i].X;
segment_length = sqrtf(segment_dy*segment_dy + segment_dx*segment_dx);
segment_pos = 0.0;
while (1)
{
if (dash_pos == 0.0)
{
if ((dash_index % 2) == 0)
{
/* start dash */
num_tmp_points = 1;
tmp_points[0].X = path->pathdata.Points[i].X + segment_dx * segment_pos / segment_length;
tmp_points[0].Y = path->pathdata.Points[i].Y + segment_dy * segment_pos / segment_length;
}
else
{
/* end dash */
tmp_points[num_tmp_points].X = path->pathdata.Points[i].X + segment_dx * segment_pos / segment_length;
tmp_points[num_tmp_points].Y = path->pathdata.Points[i].Y + segment_dy * segment_pos / segment_length;
widen_open_figure(tmp_points, 0, num_tmp_points, pen, pen_width,
draw_start_cap ? pen->startcap : LineCapFlat, pen->customstart,
LineCapFlat, NULL, last_point);
draw_start_cap = 0;
num_tmp_points = 0;
}
}
if (dash_pattern_scaled[dash_index] - dash_pos > segment_length - segment_pos)
{
/* advance to next segment */
if ((dash_index % 2) == 0)
{
tmp_points[num_tmp_points] = path->pathdata.Points[j];
num_tmp_points++;
}
dash_pos += segment_length - segment_pos;
break;
}
else
{
/* advance to next dash in pattern */
segment_pos += dash_pattern_scaled[dash_index] - dash_pos;
dash_pos = 0.0;
if (++dash_index == dash_count)
dash_index = 0;
continue;
}
}
}
if (dash_index % 2 == 0 && num_tmp_points != 0)
{
/* last dash overflows last segment */
widen_open_figure(tmp_points, 0, num_tmp_points-1, pen, pen_width,
draw_start_cap ? pen->startcap : LineCapFlat, pen->customstart,
closed ? LineCapFlat : pen->endcap, pen->customend, last_point);
}
heap_free(dash_pattern_scaled);
heap_free(tmp_points);
}
GpStatus WINGDIPAPI GdipWidenPath(GpPath *path, GpPen *pen, GpMatrix *matrix,
REAL flatness)
{
GpPath *flat_path=NULL;
GpStatus status;
path_list_node_t *points=NULL, *last_point=NULL;
int i, subpath_start=0, new_length;
TRACE("(%p,%p,%p,%0.2f)\n", path, pen, matrix, flatness);
if (!path || !pen)
return InvalidParameter;
if (path->pathdata.Count <= 1)
return OutOfMemory;
status = GdipClonePath(path, &flat_path);
if (status == Ok)
status = GdipFlattenPath(flat_path, pen->unit == UnitPixel ? matrix : NULL, flatness);
if (status == Ok && !init_path_list(&points, 314.0, 22.0))
status = OutOfMemory;
if (status == Ok)
{
REAL anchor_pen_width = max(pen->width, 2.0);
REAL pen_width = (pen->unit == UnitWorld) ? max(pen->width, 1.0) : pen->width;
BYTE *types = flat_path->pathdata.Types;
last_point = points;
if (pen->endcap > LineCapDiamondAnchor)
FIXME("unimplemented end cap %x\n", pen->endcap);
if (pen->startcap > LineCapDiamondAnchor)
FIXME("unimplemented start cap %x\n", pen->startcap);
if (pen->dashcap != DashCapFlat)
FIXME("unimplemented dash cap %d\n", pen->dashcap);
if (pen->join == LineJoinRound)
FIXME("unimplemented line join %d\n", pen->join);
if (pen->align != PenAlignmentCenter)
FIXME("unimplemented pen alignment %d\n", pen->align);
for (i=0; i < flat_path->pathdata.Count; i++)
{
if ((types[i]&PathPointTypePathTypeMask) == PathPointTypeStart)
subpath_start = i;
if ((types[i]&PathPointTypeCloseSubpath) == PathPointTypeCloseSubpath)
{
if (pen->dash != DashStyleSolid)
widen_dashed_figure(flat_path, subpath_start, i, 1, pen, pen_width, &last_point);
else
widen_closed_figure(flat_path, subpath_start, i, pen, pen_width, &last_point);
}
else if (i == flat_path->pathdata.Count-1 ||
(types[i+1]&PathPointTypePathTypeMask) == PathPointTypeStart)
{
if (pen->dash != DashStyleSolid)
widen_dashed_figure(flat_path, subpath_start, i, 0, pen, pen_width, &last_point);
else
widen_open_figure(flat_path->pathdata.Points, subpath_start, i, pen, pen_width, pen->startcap, pen->customstart, pen->endcap, pen->customend, &last_point);
}
}
for (i=0; i < flat_path->pathdata.Count; i++)
{
if ((types[i]&PathPointTypeCloseSubpath) == PathPointTypeCloseSubpath)
continue;
if ((types[i]&PathPointTypePathTypeMask) == PathPointTypeStart)
subpath_start = i;
if (i == flat_path->pathdata.Count-1 ||
(types[i+1]&PathPointTypePathTypeMask) == PathPointTypeStart)
{
if (pen->startcap & LineCapAnchorMask)
add_anchor(&flat_path->pathdata.Points[subpath_start],
&flat_path->pathdata.Points[subpath_start+1],
anchor_pen_width, pen->startcap, pen->customstart, &last_point);
if (pen->endcap & LineCapAnchorMask)
add_anchor(&flat_path->pathdata.Points[i],
&flat_path->pathdata.Points[i-1],
anchor_pen_width, pen->endcap, pen->customend, &last_point);
}
}
new_length = path_list_count(points)-1;
if (!lengthen_path(path, new_length))
status = OutOfMemory;
}
if (status == Ok)
{
path->pathdata.Count = new_length;
last_point = points->next;
for (i = 0; i < new_length; i++)
{
path->pathdata.Points[i] = last_point->pt;
path->pathdata.Types[i] = last_point->type;
last_point = last_point->next;
}
path->fill = FillModeWinding;
}
free_path_list(points);
GdipDeletePath(flat_path);
if (status == Ok && pen->unit != UnitPixel)
status = GdipTransformPath(path, matrix);
return status;
}
GpStatus WINGDIPAPI GdipAddPathRectangle(GpPath *path, REAL x, REAL y,
REAL width, REAL height)
{
GpPath *backup;
GpPointF ptf[2];
GpStatus retstat;
BOOL old_new;
TRACE("(%p, %.2f, %.2f, %.2f, %.2f)\n", path, x, y, width, height);
if(!path)
return InvalidParameter;
if (width <= 0.0 || height <= 0.0)
return Ok;
/* make a backup copy of path data */
if((retstat = GdipClonePath(path, &backup)) != Ok)
return retstat;
/* rectangle should start as new path */
old_new = path->newfigure;
path->newfigure = TRUE;
if((retstat = GdipAddPathLine(path,x,y,x+width,y)) != Ok){
path->newfigure = old_new;
goto fail;
}
ptf[0].X = x+width;
ptf[0].Y = y+height;
ptf[1].X = x;
ptf[1].Y = y+height;
if((retstat = GdipAddPathLine2(path, ptf, 2)) != Ok) goto fail;
path->pathdata.Types[path->pathdata.Count-1] |= PathPointTypeCloseSubpath;
/* free backup */
GdipDeletePath(backup);
return Ok;
fail:
/* reverting */
heap_free(path->pathdata.Points);
heap_free(path->pathdata.Types);
memcpy(path, backup, sizeof(*path));
heap_free(backup);
return retstat;
}
GpStatus WINGDIPAPI GdipAddPathRectangleI(GpPath *path, INT x, INT y,
INT width, INT height)
{
TRACE("(%p, %d, %d, %d, %d)\n", path, x, y, width, height);
return GdipAddPathRectangle(path,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
}
GpStatus WINGDIPAPI GdipAddPathRectangles(GpPath *path, GDIPCONST GpRectF *rects, INT count)
{
GpPath *backup;
GpStatus retstat;
INT i;
TRACE("(%p, %p, %d)\n", path, rects, count);
/* count == 0 - verified condition */
if(!path || !rects || count == 0)
return InvalidParameter;
if(count < 0)
return OutOfMemory;
/* make a backup copy */
if((retstat = GdipClonePath(path, &backup)) != Ok)
return retstat;
for(i = 0; i < count; i++){
if((retstat = GdipAddPathRectangle(path,rects[i].X,rects[i].Y,rects[i].Width,rects[i].Height)) != Ok)
goto fail;
}
/* free backup */
GdipDeletePath(backup);
return Ok;
fail:
/* reverting */
heap_free(path->pathdata.Points);
heap_free(path->pathdata.Types);
memcpy(path, backup, sizeof(*path));
heap_free(backup);
return retstat;
}
GpStatus WINGDIPAPI GdipAddPathRectanglesI(GpPath *path, GDIPCONST GpRect *rects, INT count)
{
GpRectF *rectsF;
GpStatus retstat;
INT i;
TRACE("(%p, %p, %d)\n", path, rects, count);
if(!rects || count == 0)
return InvalidParameter;
if(count < 0)
return OutOfMemory;
rectsF = heap_alloc_zero(sizeof(GpRectF)*count);
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;
}
retstat = GdipAddPathRectangles(path, rectsF, count);
heap_free(rectsF);
return retstat;
}
GpStatus WINGDIPAPI GdipSetPathMarker(GpPath* path)
{
INT count;
TRACE("(%p)\n", path);
if(!path)
return InvalidParameter;
count = path->pathdata.Count;
/* set marker flag */
if(count > 0)
path->pathdata.Types[count-1] |= PathPointTypePathMarker;
return Ok;
}
GpStatus WINGDIPAPI GdipClearPathMarkers(GpPath* path)
{
INT count;
INT i;
TRACE("(%p)\n", path);
if(!path)
return InvalidParameter;
count = path->pathdata.Count;
for(i = 0; i < count - 1; i++){
path->pathdata.Types[i] &= ~PathPointTypePathMarker;
}
return Ok;
}
GpStatus WINGDIPAPI GdipWindingModeOutline(GpPath *path, GpMatrix *matrix, REAL flatness)
{
FIXME("stub: %p, %p, %.2f\n", path, matrix, flatness);
return NotImplemented;
}
#define FLAGS_INTPATH 0x4000
struct path_header
{
DWORD version;
DWORD count;
DWORD flags;
};
/* Test to see if the path could be stored as an array of shorts */
static BOOL is_integer_path(const GpPath *path)
{
int i;
if (!path->pathdata.Count) return FALSE;
for (i = 0; i < path->pathdata.Count; i++)
{
short x, y;
x = gdip_round(path->pathdata.Points[i].X);
y = gdip_round(path->pathdata.Points[i].Y);
if (path->pathdata.Points[i].X != (REAL)x || path->pathdata.Points[i].Y != (REAL)y)
return FALSE;
}
return TRUE;
}
DWORD write_path_data(GpPath *path, void *data)
{
struct path_header *header = data;
BOOL integer_path = is_integer_path(path);
DWORD i, size;
BYTE *types;
size = sizeof(struct path_header) + path->pathdata.Count;
if (integer_path)
size += sizeof(short[2]) * path->pathdata.Count;
else
size += sizeof(float[2]) * path->pathdata.Count;
size = (size + 3) & ~3;
if (!data) return size;
header->version = VERSION_MAGIC2;
header->count = path->pathdata.Count;
header->flags = integer_path ? FLAGS_INTPATH : 0;
if (integer_path)
{
short *points = (short*)(header + 1);
for (i = 0; i < path->pathdata.Count; i++)
{
points[2*i] = path->pathdata.Points[i].X;
points[2*i + 1] = path->pathdata.Points[i].Y;
}
types = (BYTE*)(points + 2*i);
}
else
{
float *points = (float*)(header + 1);
for (i = 0; i < path->pathdata.Count; i++)
{
points[2*i] = path->pathdata.Points[i].X;
points[2*i + 1] = path->pathdata.Points[i].Y;
}
types = (BYTE*)(points + 2*i);
}
for (i=0; i<path->pathdata.Count; i++)
types[i] = path->pathdata.Types[i];
memset(types + i, 0, ((path->pathdata.Count + 3) & ~3) - path->pathdata.Count);
return size;
}
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