// Draw the pattern using the texture brush.
void DrawPatternWithTexBrush(GraphicsTarget g, SymPathWithHoles path, float angle, SymColor color, RenderOptions renderOpts)
{
Brush brush = (Brush) patternBrushes[color];
Debug.Assert(brush != null);
if (angle != 0.0F) {
object graphicsState = g.Save();
try {
// Set the clipping region to draw only inside the area.
g.SetClip(path);
// use a transform to rotate.
Matrix matrix = GraphicsUtil.RotationMatrix(angle, new PointF(0, 0));
g.Transform(matrix);
// Get the correct bounding rect.
RectangleF bounding = Util.BoundsOfRotatedRectangle(path.BoundingBox, new PointF(), -angle);
g.FillRectangle(brush, bounding);
}
finally {
// restore the clip region and the transform
g.Restore(graphicsState);
}
}
else {
path.Fill(g, brush);
}
}
// Draw this area symbol in the graphics inside/around the path provided, with
// the given color only.
internal void Draw(GraphicsTarget g, SymPathWithHoles path, SymColor color, float angle, RenderOptions renderOpts)
{
if (!pensAndBrushesCreated)
CreatePensAndBrushes();
if (color == fillColor) {
path.Fill(g, color.Brush);
}
if (hatchMode != 0 && hatchColor == color) {
DrawHatching(g, path, angle, renderOpts);
}
if (drawPattern && patternGlyph.HasColor(color)) {
// Faster to draw the pattern with a texture brush that has a bitmap
// of the pattern in it. Better quality to do it all with glyph drawing.
// Choose based on the renderOptions.
#if false
DrawPatternWithTexBrush(g, path, angle, color, renderOpts);
#else
if (renderOpts.usePatternBitmaps) {
CreatePatternBrush(renderOpts.minResolution);
DrawPatternWithTexBrush(g, path, angle, color, renderOpts);
}
else
DrawPattern(g, path, angle, color, renderOpts);
#endif
}
// Draw the border. Take into account the subpaths defined by start/stop flags along the paths.
if (borderSymdef != null && borderSymdef.HasColor(color)) {
// Draw main part of border.
foreach (SymPath subpath in path.MainPath.GetSubpaths(SymPath.AREA_BOUNDARY_STARTSTOPFLAG))
borderSymdef.Draw(g, subpath, color, renderOpts);
// Draw the holes.
if (path.Holes != null)
foreach (SymPath hole in path.Holes)
foreach (SymPath subpath in hole.GetSubpaths(SymPath.AREA_BOUNDARY_STARTSTOPFLAG))
borderSymdef.Draw(g, subpath, color, renderOpts);
}
}