various fixes for "advanced" operations on range selections. ctrl-drags now add a new range selection, allowing discontiguous selections as in ardour2, shift-click extends an existing range selection to the clicked position, alt-drag on a range selection moves it, and to do a so-called "separation drag" now use ctrl-alt-drag (or ctrl-alt-click)

git-svn-id: svn://localhost/ardour2/branches/3.0@13660 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 15 insertions, 0 deletions

diff --git a/gtk2_ardour/selection.cc b/gtk2_ardour/selection.cc
index 395ceda169..cf25826676 100644
--- a/gtk2_ardour/selection.cc
+++ b/gtk2_ardour/selection.cc
@@ -532,6 +532,21 @@ Selection::add (framepos_t start, framepos_t end)
 }
 
 void
+Selection::move_time (framecnt_t distance)
+{
+	if (distance == 0) {
+		return;
+	}
+
+	for (list<AudioRange>::iterator i = time.begin(); i != time.end(); ++i) {
+		(*i).start += distance;
+		(*i).end += distance;
+	}
+
+	TimeChanged ();
+}
+
+void
 Selection::replace (uint32_t sid, framepos_t start, framepos_t end)
 {
 	clear_objects();  //enforce object/range exclusivity