// Draw a particular color layer. If curColor is null, draw the image layer.
private void DrawColor(GraphicsTarget g, SymColor curColor, RectangleF rect, bool clipRegionIsRectangle, RenderOptions renderOpts)
{
foreach (SymDef symdef in symdefs) {
if (IsSymdefVisible(symdef) && symdef.HasColor(curColor)) {
foreach (Symbol curSym in symdef.symbols) {
// Only draw the symbol if it may intersect. Check
// the bounding box first as it's faster exclusion than MayIntersectRect.
RectangleF bounds = curSym.BoundingBox;
if (bounds.IntersectsWith(rect) &&
#if true
(clipRegionIsRectangle || g.Graphics.IsVisible(Util.InflateRect(bounds, renderOpts.minResolution))) &&
#endif
curSym.MayIntersectRect(rect))
{
curSym.Draw(g, curColor, renderOpts);
if (renderOpts.showSymbolBounds)
g.DrawRectangle(boundsPen, bounds);
}
}
}
}
//TraceLine("Drawing color {0}: drew {1} of {2} symbols.", curColor, cDrawn, cSymbols);
}