Pushes an animatable region, so all further gtk_render_*() calls between this call and the following gtk.style_context.StyleContext.popAnimatableRegion will potentially show transition animations for this region if gtk.style_context.StyleContext.notifyStateChange is called for a given state, and the current theme/style defines transition animations for state changes.
The region_id used must be unique in context so the themes can uniquely identify rendered elements subject to a state transition.
unique identifier for the animatable region
Deprecated: This function does nothing.
Pushes an animatable region, so all further gtk_render_*() calls between this call and the following gtk.style_context.StyleContext.popAnimatableRegion will potentially show transition animations for this region if gtk.style_context.StyleContext.notifyStateChange is called for a given state, and the current theme/style defines transition animations for state changes.
The region_id used must be unique in context so the themes can uniquely identify rendered elements subject to a state transition.