From c4e31fc32273a84c0436f32fce742ae21718b03c Mon Sep 17 00:00:00 2001 From: Tim Mayberry Date: Sat, 1 Apr 2017 23:02:49 +1000 Subject: Add an optional ArdourCanvas::Item::prepare_for_render interface Called when an item has requested a redraw and intersects with visible canvas area. Also add Canvas::prepare_for_render that will call Item::prepare_for_render for items visible on the canvas. --- libs/canvas/container.cc | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'libs/canvas/container.cc') diff --git a/libs/canvas/container.cc b/libs/canvas/container.cc index 78598d5118..71085a8257 100644 --- a/libs/canvas/container.cc +++ b/libs/canvas/container.cc @@ -37,6 +37,12 @@ Container::Container (Item* parent, Duple const & p) { } +void +Container::prepare_for_render (Rect const & area) const +{ + Item::prepare_for_render_children (area); +} + void Container::render (Rect const & area, Cairo::RefPtr context) const { -- cgit v1.2.3