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Merge branch 'canvas_tweaks' of https://github.com/nmains/ardour into cairocanvas

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This commit is contained in:
Paul Davis 2014-06-18 11:20:10 -04:00
commit 36a34dc1a4
2 changed files with 27 additions and 10 deletions
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13
libs/canvas/canvas.cc
View file

@ -170,9 +170,11 @@ Canvas::item_shown_or_hidden (Item* item)
{
boost::optional<Rect> bbox = item->bounding_box ();
if (bbox) {
if (item->item_to_window (*bbox).intersection (visible_area ())) {
queue_draw_item_area (item, bbox.get ());
}
}
}
/** Called when an item has a change to its visual properties
* that do NOT affect its bounding box.
@ -183,9 +185,11 @@ Canvas::item_visual_property_changed (Item* item)
{
boost::optional<Rect> bbox = item->bounding_box ();
if (bbox) {
if (item->item_to_window (*bbox).intersection (visible_area ())) {
queue_draw_item_area (item, bbox.get ());
}
}
}
/** Called when an item has changed, but not moved.
* @param item Item that has changed.
@ -195,17 +199,26 @@ Canvas::item_visual_property_changed (Item* item)
void
Canvas::item_changed (Item* item, boost::optional<Rect> pre_change_bounding_box)
{
Rect window_bbox = visible_area ();
if (pre_change_bounding_box) {
if (item->item_to_window (*pre_change_bounding_box).intersection (window_bbox)) {
/* request a redraw of the item's old bounding box */
queue_draw_item_area (item, pre_change_bounding_box.get ());
}
}
boost::optional<Rect> post_change_bounding_box = item->bounding_box ();
if (post_change_bounding_box) {
if (item->item_to_window (*post_change_bounding_box).intersection (window_bbox)) {
/* request a redraw of the item's new bounding box */
queue_draw_item_area (item, post_change_bounding_box.get ());
}
}
}
Duple
Canvas::window_to_canvas (Duple const & d) const

4
libs/canvas/item.cc
View file

@ -545,12 +545,14 @@ Item::begin_change ()
void
Item::end_change ()
{
if (_visible) {
_canvas->item_changed (this, _pre_change_bounding_box);
if (_parent) {
_parent->child_changed ();
}
}
}
void
Item::begin_visual_change ()
@ -560,8 +562,10 @@ Item::begin_visual_change ()
void
Item::end_visual_change ()
{
if (_visible) {
_canvas->item_visual_property_changed (this);
}
}
void
Item::move (Duple movement)