renderExpander
fn
void renderExpander(gtk.style_context.StyleContext context, cairo.context.Context cr, double x, double y, double width, double height)Renders an expander (as used in gtk.tree_view.TreeView and gtk.expander.Expander) in the area defined by x, y, width, height. The state gtk.types.StateFlags.Checked determines whether the expander is collapsed or expanded.
Typical expander rendering:
Parameters
context | a gtk.style_context.StyleContext |
cr | a cairo.context.Context |
x | X origin of the rectangle |
y | Y origin of the rectangle |
width | rectangle width |
height | rectangle height |