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gdiplus: Reimplement GdipDrawPie using GdipDrawPath.

This commit is contained in:
Dmitry Timoshkov 2013-02-19 11:45:28 +08:00 committed by Alexandre Julliard
parent 6df50f1d16
commit 981223a736
1 changed files with 9 additions and 46 deletions
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55
dlls/gdiplus/graphics.c
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@ -51,18 +51,6 @@ static GpStatus draw_driver_string(GpGraphics *graphics, GDIPCONST UINT16 *text,
GDIPCONST GpBrush *brush, GDIPCONST PointF *positions,
INT flags, GDIPCONST GpMatrix *matrix);
/* Converts angle (in degrees) to x/y coordinates */
static void deg2xy(REAL angle, REAL x_0, REAL y_0, REAL *x, REAL *y)
{
REAL radAngle, hypotenuse;
radAngle = deg2rad(angle);
hypotenuse = 50.0; /* arbitrary */
*x = x_0 + cos(radAngle) * hypotenuse;
*y = y_0 + sin(radAngle) * hypotenuse;
}
/* Converts from gdiplus path point type to gdi path point type. */
static BYTE convert_path_point_type(BYTE type)
{
@ -1456,27 +1444,6 @@ static GpStatus brush_fill_pixels(GpGraphics *graphics, GpBrush *brush,
}
}
/* GdipDrawPie/GdipFillPie helper function */
static void draw_pie(GpGraphics *graphics, REAL x, REAL y, REAL width,
REAL height, REAL startAngle, REAL sweepAngle)
{
GpPointF ptf[4];
POINT pti[4];
ptf[0].X = x;
ptf[0].Y = y;
ptf[1].X = x + width;
ptf[1].Y = y + height;
deg2xy(startAngle+sweepAngle, x + width / 2.0, y + width / 2.0, &ptf[2].X, &ptf[2].Y);
deg2xy(startAngle, x + width / 2.0, y + width / 2.0, &ptf[3].X, &ptf[3].Y);
transform_and_round_points(graphics, pti, ptf, 4);
Pie(graphics->hdc, pti[0].x, pti[0].y, pti[1].x, pti[1].y, pti[2].x,
pti[2].y, pti[3].x, pti[3].y);
}
/* 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. */
@ -3396,7 +3363,8 @@ GpStatus WINGDIPAPI GdipDrawPath(GpGraphics *graphics, GpPen *pen, GpPath *path)
GpStatus WINGDIPAPI GdipDrawPie(GpGraphics *graphics, GpPen *pen, REAL x,
REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
{
INT save_state;
GpStatus status;
GpPath *path;
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n", graphics, pen, x, y,
width, height, startAngle, sweepAngle);
@ -3407,20 +3375,15 @@ GpStatus WINGDIPAPI GdipDrawPie(GpGraphics *graphics, GpPen *pen, REAL x,
if(graphics->busy)
return ObjectBusy;
if (!graphics->hdc)
{
FIXME("graphics object has no HDC\n");
return Ok;
}
status = GdipCreatePath(FillModeAlternate, &path);
if (status != Ok) return status;
save_state = prepare_dc(graphics, pen);
SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
status = GdipAddPathPie(path, x, y, width, height, startAngle, sweepAngle);
if (status == Ok)
status = GdipDrawPath(graphics, pen, path);
draw_pie(graphics, x, y, width, height, startAngle, sweepAngle);
restore_dc(graphics, save_state);
return Ok;
GdipDeletePath(path);
return status;
}
GpStatus WINGDIPAPI GdipDrawPieI(GpGraphics *graphics, GpPen *pen, INT x,