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gdiplus: Handle zero width/height in GdipAddPathPie.

This commit is contained in:
Nikolay Sivov 2009-02-09 23:25:06 +03:00 committed by Alexandre Julliard
parent 2e29c7d516
commit 8cb170126a
2 changed files with 31 additions and 1 deletions
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11
dlls/gdiplus/graphicspath.c
View File

@ -723,6 +723,17 @@ GpStatus WINGDIPAPI GdipAddPathPie(GpPath *path, REAL x, REAL y, REAL width, REA
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)

21
dlls/gdiplus/tests/graphicspath.c
View File

@ -907,7 +907,12 @@ static path_test_t addpie_path[] = {
{79.4, 46.8, PathPointTypeBezier,0, 0}, /*3*/
{63.9, 49.0, PathPointTypeBezier | PathPointTypeCloseSubpath, 0, 0} /*4*/
};
static path_test_t addpie_path2[] = {
{0.0, 30.0, PathPointTypeStart | PathPointTypeCloseSubpath, 0, 0} /*0*/
};
static path_test_t addpie_path3[] = {
{30.0, 0.0, PathPointTypeStart | PathPointTypeCloseSubpath, 0, 0} /*0*/
};
static void test_addpie(void)
{
GpStatus status;
@ -922,6 +927,20 @@ static void test_addpie(void)
status = GdipAddPathPie(path, 0.0, 0.0, 100.0, 50.0, 10.0, 50.0);
expect(Ok, status);
ok_path(path, addpie_path, sizeof(addpie_path)/sizeof(path_test_t), FALSE);
status = GdipResetPath(path);
expect(Ok, status);
/* zero width base ellipse */
status = GdipAddPathPie(path, 0.0, 0.0, 0.0, 60.0, -90.0, 24.0);
expect(InvalidParameter, status);
ok_path(path, addpie_path2, sizeof(addpie_path2)/sizeof(path_test_t), FALSE);
status = GdipResetPath(path);
expect(Ok, status);
/* zero height base ellipse */
status = GdipAddPathPie(path, 0.0, 0.0, 60.0, 0.0 , -90.0, 24.0);
expect(InvalidParameter, status);
ok_path(path, addpie_path3, sizeof(addpie_path3)/sizeof(path_test_t), FALSE);
GdipDeletePath(path);
}