snapshot


Description:

public virtual void snapshot (Snapshot snapshot, Widget widget, Rectangle background_area, Rectangle cell_area, CellRendererState flags)

Invokes the virtual render function of the CellRenderer.

The three passed-in rectangles are areas in cr. Most renderers will draw within cell_area; the xalign, yalign, xpad, and ypad fields of the CellRenderer should be honored with respect to cell_area. background_area includes the blank space around the cell, and also the area containing the tree expander; so the background_area rectangles for all cells tile to cover the entire window.

Parameters:

this

a CellRenderer

snapshot

a Snapshot to draw to

widget

the widget owning window

background_area

entire cell area (including tree expanders and maybe padding on the sides)

cell_area

area normally rendered by a cell renderer

flags

flags that affect rendering