US2400: add us2400 files to repository.

1 files changed, 70 insertions, 0 deletions

diff --git a/libs/surfaces/us2400/jog_wheel.cc b/libs/surfaces/us2400/jog_wheel.cc
new file mode 100644
index 0000000000..d7591e6ffb
--- /dev/null
+++ b/libs/surfaces/us2400/jog_wheel.cc
@@ -0,0 +1,70 @@
+/*
+    Copyright (C) 2012 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 <cmath>
+
+#include "ardour/session.h"
+
+#include "jog_wheel.h"
+#include "us2400_control_protocol.h"
+#include "surface_port.h"
+#include "controls.h"
+#include "surface.h"
+
+#include <algorithm>
+
+using namespace ArdourSurface;
+using namespace US2400;
+
+JogWheel::JogWheel (US2400Protocol & mcp)
+  : _mcp (mcp)
+  , _mode (scroll)
+{
+}
+
+void
+JogWheel::set_mode (Mode m)
+{
+	_mode = m;
+}
+
+void JogWheel::jog_event (float delta)
+{
+	if (_mcp.zoom_mode()) {
+		if  (delta > 0) {
+			for  (unsigned int i = 0; i < fabs (delta); ++i) {
+				_mcp.ZoomIn();
+			}
+		} else {
+			for  (unsigned int i = 0; i < fabs (delta); ++i) {
+				_mcp.ZoomOut();
+			}
+		}
+		return;
+	}
+
+	switch  (_mode) {
+	case scroll:
+		_mcp.ScrollTimeline (delta/4.0);
+		break;
+	default:
+		break;
+	}
+}
+