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 |