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Add Canvas::re_enter() which picks the current item again based on mouse pointer position and generates an enter event for it

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This commit is contained in:
Paul Davis 2014-07-07 07:53:17 -04:00
parent 779fe6c082
commit 69a92e67f0
2 changed files with 15 additions and 0 deletions
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8
libs/canvas/canvas.cc
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@ -331,6 +331,14 @@ Canvas::queue_draw_item_area (Item* item, Rect area)
request_redraw (item->item_to_window (area));
}
void
GtkCanvas::re_enter ()
{
DEBUG_TRACE (PBD::DEBUG::CanvasEnterLeave, "re-enter canvas by request\n");
_current_item = 0;
pick_current_item (0);
}
/** Construct a GtkCanvas */
GtkCanvas::GtkCanvas ()
: _current_item (0)

7
libs/canvas/canvas/canvas.h
View file

@ -136,6 +136,11 @@ public:
std::string render_indent() const;
void dump (std::ostream&) const;
/** Ask the canvas to pick the current item again, and generate
an enter event for it.
*/
virtual void re_enter () = 0;
protected:
void queue_draw_item_area (Item *, Rect);
@ -169,6 +174,8 @@ public:
bool get_mouse_position (Duple& winpos) const;
void re_enter ();
protected:
bool on_scroll_event (GdkEventScroll *);
bool on_expose_event (GdkEventExpose *);