From 4c9fcd407c0333892a38c97a9598b1a9dd3ca2a4 Mon Sep 17 00:00:00 2001
From: Hans Baier <hansfbaier@googlemail.com>
Date: Tue, 16 Oct 2012 09:19:19 +0000
Subject: [PATCH] implement double click to ContentsRange on MidiScroomer

git-svn-id: svn://localhost/ardour2/branches/3.0@13284 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 gtk2_ardour/midi_time_axis.cc       | 3 +++
 libs/gtkmm2ext/gtkmm2ext/scroomer.h | 2 ++
 libs/gtkmm2ext/scroomer.cc          | 4 ++++
 3 files changed, 9 insertions(+)

diff --git a/gtk2_ardour/midi_time_axis.cc b/gtk2_ardour/midi_time_axis.cc
index af1e7b61c7..87d453c1d7 100644
--- a/gtk2_ardour/midi_time_axis.cc
+++ b/gtk2_ardour/midi_time_axis.cc
@@ -128,6 +128,9 @@ MidiTimeAxisView::set_route (boost::shared_ptr<Route> rt)
 	if (is_track ()) {
 		_piano_roll_header = new PianoRollHeader(*midi_view());
 		_range_scroomer = new MidiScroomer(midi_view()->note_range_adjustment);
+		_range_scroomer->DoubleClicked.connect (sigc::bind (
+				sigc::mem_fun(*this, &MidiTimeAxisView::set_note_range),
+				MidiStreamView::ContentsRange, false));
 	}
 
 	/* This next call will result in our height being set up, so it must come after
diff --git a/libs/gtkmm2ext/gtkmm2ext/scroomer.h b/libs/gtkmm2ext/gtkmm2ext/scroomer.h
index b5c93f7f9f..a5b7f4a9ba 100644
--- a/libs/gtkmm2ext/gtkmm2ext/scroomer.h
+++ b/libs/gtkmm2ext/gtkmm2ext/scroomer.h
@@ -60,6 +60,8 @@ public:
 	sigc::signal0<void> DragStarting;
 	sigc::signal0<void> DragFinishing;
 
+	sigc::signal0<void> DoubleClicked;
+
 protected:
 	Gtk::Adjustment& adj;
 
diff --git a/libs/gtkmm2ext/scroomer.cc b/libs/gtkmm2ext/scroomer.cc
index dcef6eae33..6e27f5ce0a 100644
--- a/libs/gtkmm2ext/scroomer.cc
+++ b/libs/gtkmm2ext/scroomer.cc
@@ -251,6 +251,10 @@ Scroomer::on_button_press_event (GdkEventButton* ev)
 		DragStarting (); /* EMIT SIGNAL */
 	}
 	
+	if (ev->type == GDK_2BUTTON_PRESS && ev->button == 1) {
+		DoubleClicked();
+	}
+
 	return false;
 }