From 673a995e5c718bc6aa994c50a70deb6f96e3eb59 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Sat, 28 Nov 2009 02:19:13 +0000
Subject: [PATCH] add ctrl-click behaviour to DndVBox, though not generalized
 to use primary/secondary keyboard mods etc. etc.

git-svn-id: svn://localhost/ardour2/branches/3.0@6202 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/gtkmm2ext/gtkmm2ext/dndvbox.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/libs/gtkmm2ext/gtkmm2ext/dndvbox.h b/libs/gtkmm2ext/gtkmm2ext/dndvbox.h
index 7a011e9dcc..166544d73f 100644
--- a/libs/gtkmm2ext/gtkmm2ext/dndvbox.h
+++ b/libs/gtkmm2ext/gtkmm2ext/dndvbox.h
@@ -258,9 +258,18 @@ private:
 					add_to_selection (child);
 				}
 				SelectionChanged (); /* EMIT SIGNAL */
+			} else {
+				/* XXX THIS NEEDS GENERALIZING FOR OS X */
+				if (ev->button == 1 && (ev->state & Gdk::CONTROL_MASK)) {
+					if (child && selected (child)) {
+						remove_from_selection (child);
+						SelectionChanged (); /* EMIT SIGNAL */
+					}
+				}
 			}
 		}
 
+
 		return ButtonPress (ev, child); /* EMIT SIGNAL */
 	}
 	
@@ -292,6 +301,16 @@ private:
 		_selection.push_back (child);
 	}
 		
+	
+	void remove_from_selection (T* child)
+	{
+		typename std::list<T*>::iterator x = find (_selection.begin(), _selection.end(), child);
+		if (x != _selection.end()) {
+			child->action_widget().set_state (Gtk::STATE_NORMAL);
+			_selection.erase (x);
+		}
+	}
+		
 	T* child_from_widget (Gtk::Widget const * w) const
 	{
 		typename std::list<T*>::const_iterator i = _children.begin();