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render_expander

gtk

Function render_expander 

Source 
pub fn render_expander(
    context: &impl IsA<StyleContext>,
    cr: &Context,
    x: f64,
    y: f64,
    width: f64,
    height: f64,
)
Expand description

Renders an expander (as used in TreeView and Expander) in the area defined by x, y, width, height. The state StateFlags::CHECKED determines whether the expander is collapsed or expanded.

Typical expander rendering:

§context

a StyleContext

§cr

a cairo::Context

§x

X origin of the rectangle

§y

Y origin of the rectangle

§width

rectangle width

§height

rectangle height