basically operational switch to canvas drawing coordinates, although text and waves don't work, and redraw areas are too small

1 files changed, 32 insertions, 0 deletions

diff --git a/libs/canvas/item.cc b/libs/canvas/item.cc
index 569d03f81f..dca3064bce 100644
--- a/libs/canvas/item.cc
+++ b/libs/canvas/item.cc
@@ -127,6 +127,20 @@ Item::canvas_to_item (ArdourCanvas::Duple const & d) const
 	return d.translate (offset);
 }
 
+ArdourCanvas::Rect
+Item::canvas_to_item (ArdourCanvas::Rect const & d) const
+{
+	Item const * i = this;
+	Duple offset;
+
+	while (i) {
+		offset = offset.translate (-(i->position()));
+		i = i->parent();
+	}
+
+	return d.translate (offset);
+}
+
 void
 Item::item_to_canvas (Coord& x, Coord& y) const
 {
@@ -145,6 +159,24 @@ Item::canvas_to_item (Coord& x, Coord& y) const
 	y = d.y;
 }
 
+Duple
+Item::item_to_window (ArdourCanvas::Duple const & d) const
+{
+	return _canvas->canvas_to_window (item_to_canvas (d));
+}
+
+Duple
+Item::window_to_item (ArdourCanvas::Duple const & d) const
+{
+	return _canvas->window_to_canvas (canvas_to_item (d));
+}
+
+Rect
+Item::item_to_window (ArdourCanvas::Rect const & r) const
+{
+	return _canvas->canvas_to_window (item_to_canvas (r));
+}
+
 /** Set the position of this item in the parent's coordinates */
 void
 Item::set_position (Duple p)