clever fixes to make keyboard-driven trimming work nicely

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@2856 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 25 insertions, 0 deletions

diff --git a/gtk2_ardour/editor_selection.cc b/gtk2_ardour/editor_selection.cc
index f1248fb13a..8e1d35ca69 100644
--- a/gtk2_ardour/editor_selection.cc
+++ b/gtk2_ardour/editor_selection.cc
@@ -1325,3 +1325,28 @@ Editor::deselect_all ()
 {
 	selection->clear ();
 }
+
+Editor::ExclusiveRegionSelection::ExclusiveRegionSelection (Editor& ed, RegionView* rv)
+	: editor (ed),
+	  regionview (rv)
+{
+
+	if (!rv || ed.current_mouse_mode() != Editing::MouseObject) {
+		return;
+	}
+	
+	if (ed.get_selection().regions.empty() && !ed.get_selection().selected (rv)) {
+		ed.get_selection().set (rv, false);
+		remove = true;
+	} else {
+		remove = false;
+	}
+}
+
+Editor::ExclusiveRegionSelection::~ExclusiveRegionSelection ()
+{
+	if (remove) {
+		editor.get_selection().remove (regionview);
+	}
+}
+