Move some bits from MonoPanner and StereoPanner into a

common base class.


git-svn-id: svn://localhost/ardour2/branches/3.0@11071 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 109 insertions, 0 deletions

diff --git a/gtk2_ardour/panner_interface.cc b/gtk2_ardour/panner_interface.cc
new file mode 100644
index 0000000000..95e1e4e7ff
--- /dev/null
+++ b/gtk2_ardour/panner_interface.cc
@@ -0,0 +1,109 @@
+/*
+    Copyright (C) 2011 Paul Davis
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <gtkmm.h>
+#include "gtkmm2ext/keyboard.h"
+#include "panner_interface.h"
+#include "global_signals.h"
+
+#include "i18n.h"
+
+using namespace Gtk;
+using namespace ARDOUR;
+using namespace Gtkmm2ext;
+
+PannerInterface::PannerInterface (boost::shared_ptr<Panner> p)
+	: _panner (p)
+	, _drag_data_window (0)
+	, _drag_data_label (0)
+{
+        set_flags (Gtk::CAN_FOCUS);
+
+        add_events (Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK|
+                    Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK|
+                    Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|
+                    Gdk::SCROLL_MASK|
+                    Gdk::POINTER_MOTION_MASK);
+
+}
+
+PannerInterface::~PannerInterface ()
+{
+	delete _drag_data_window;
+}
+
+void
+PannerInterface::show_drag_data_window ()
+{
+        if (!_drag_data_window) {
+		_drag_data_window = new Window (WINDOW_POPUP);
+		_drag_data_window->set_name (X_("ContrastingPopup"));
+		_drag_data_window->set_position (WIN_POS_MOUSE);
+		_drag_data_window->set_decorated (false);
+		
+		_drag_data_label = manage (new Label);
+		_drag_data_label->set_use_markup (true);
+		
+		_drag_data_window->set_border_width (6);
+		_drag_data_window->add (*_drag_data_label);
+		_drag_data_label->show ();
+		
+		Window* toplevel = dynamic_cast<Window*> (get_toplevel());
+		if (toplevel) {
+			_drag_data_window->set_transient_for (*toplevel);
+		}
+	}
+	
+        if (!_drag_data_window->is_visible ()) {
+                /* move the window a little away from the mouse */
+                int rx, ry;
+                get_window()->get_origin (rx, ry);
+                _drag_data_window->move (rx, ry + get_height());
+                _drag_data_window->present ();
+        }
+}
+
+bool
+PannerInterface::on_enter_notify_event (GdkEventCrossing *)
+{
+	grab_focus ();
+	Keyboard::magic_widget_grab_focus ();
+	return false;
+}
+
+bool
+PannerInterface::on_leave_notify_event (GdkEventCrossing *)
+{
+	Keyboard::magic_widget_drop_focus ();
+	return false;
+}
+
+bool
+PannerInterface::on_key_release_event (GdkEventKey*)
+{
+	return false;
+}
+
+void
+PannerInterface::value_change ()
+{
+	set_drag_data ();
+	queue_draw ();
+}
+