Function gtk::functions::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
cr
x
X origin of the rectangle
y
Y origin of the rectangle
width
rectangle width
height
rectangle height