1 files changed, 73 insertions, 0 deletions
diff --git a/plugingui/knob.h b/plugingui/knob.h
new file mode 100644
index 0000000..98ccf36
--- /dev/null
+++ b/plugingui/knob.h
@@ -0,0 +1,73 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            knob.h
+ *
+ *  Thu Feb 28 07:37:27 CET 2013
+ *  Copyright 2013 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo 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.
+ *
+ *  DrumGizmo 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 DrumGizmo; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#ifndef __DRUMGIZMO_KNOB_H__
+#define __DRUMGIZMO_KNOB_H__
+
+#include "widget.h"
+
+namespace GUI {
+
+class Knob : public Widget {
+public:
+  Knob(Widget *parent);
+
+  bool catchMouse() { return true; }
+
+  void setValue(float value);
+  float value();
+
+  void registerClickHandler(void (*handler)(void *), void *ptr);
+
+  //protected:
+  virtual void clicked() {}
+
+  virtual void repaintEvent(RepaintEvent *e);
+  virtual void buttonEvent(ButtonEvent *e);
+  virtual void mouseMoveEvent(MouseMoveEvent *e);
+
+private:
+  typedef enum {
+    up,
+    down
+  } state_t;
+
+  float val;
+  float maximum;
+  float minimum;
+
+  state_t state;
+
+  void (*handler)(void *);
+  void *ptr;
+
+  int mouse_offset_x;
+
+};
+
+};
+
+#endif/*__DRUMGIZMO_KNOB_H__*/