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slightly optimize drawing of rectangles with all 4 sides outlined to avoid multiple paths etc

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Paul Davis
2013-04-12 11:08:24 -04:00
parent f208593249
commit fcb423f3f6
1 changed files with 48 additions and 22 deletions
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70
libs/canvas/rectangle.cc
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@@ -40,32 +40,58 @@ Rectangle::render (Rect const & /*area*/, Cairo::RefPtr<Cairo::Context> context)
if (_fill) {
setup_fill_context (context);
context->rectangle (plot.x0, plot.y0, plot.width(), plot.height());
context->fill ();
}
if (!_outline) {
context->fill ();
} else {
/* special/common case: outline the entire rectangle is
* requested, so just use the same path for the fill
* and stroke.
*/
if (_outline_what == What (LEFT|RIGHT|BOTTOM|TOP)) {
context->fill_preserve();
setup_outline_context (context);
context->stroke ();
} else {
context->fill ();
}
}
}
if (_outline) {
if (_outline_what & LEFT) {
context->move_to (plot.x0, plot.y0);
context->line_to (plot.x0, plot.y1);
}
if (_outline_what & BOTTOM) {
context->move_to (plot.x0, plot.y1);
context->line_to (plot.x1, plot.y1);
if (_outline_what == What (LEFT|RIGHT|BOTTOM|TOP)) {
context->rectangle (plot.x0, plot.y0, plot.width(), plot.height());
setup_outline_context (context);
context->stroke ();
} else {
if (_outline_what & LEFT) {
context->move_to (plot.x0, plot.y0);
context->line_to (plot.x0, plot.y1);
}
if (_outline_what & BOTTOM) {
context->move_to (plot.x0, plot.y1);
context->line_to (plot.x1, plot.y1);
}
if (_outline_what & RIGHT) {
context->move_to (plot.x1, plot.y0);
context->line_to (plot.x1, plot.y1);
}
if (_outline_what & TOP) {
context->move_to (plot.x0, plot.y0);
context->line_to (plot.x1, plot.y0);
}
setup_outline_context (context);
context->stroke ();
}
if (_outline_what & RIGHT) {
context->move_to (plot.x1, plot.y0);
context->line_to (plot.x1, plot.y1);
}
if (_outline_what & TOP) {
context->move_to (plot.x0, plot.y0);
context->line_to (plot.x1, plot.y0);
}
setup_outline_context (context);
context->stroke ();
}
}