1 files changed, 73 insertions, 0 deletions
diff --git a/src/zoomslider.h b/src/zoomslider.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            zoomslider.h
+ *
+ *  Fri May  2 21:23:26 CEST 2014
+ *  Copyright 2014 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_ZOOMSLIDER_H__
+#define __DRUMGIZMO_ZOOMSLIDER_H__
+
+#include <QSlider>
+#include <QObject>
+
+class ZoomSlider : public QSlider {
+Q_OBJECT
+public:
+  ZoomSlider(Qt::Orientation orientation);
+
+  /**
+   * Range of the slider. 'from' may be lesser than 'to' which will invert the
+   * slider.
+   */
+  void setRange(float from, float to);
+
+  /**
+   * Set the distance between emitting of valueChanged signals.
+   * Example: from:=0, to:=1 and width:=0.5 will emit valueChanged signals on
+   * 0.0, 0.5 and 1.0 (ie. the slider will have 3 actual values)
+   * NOTE: If 'width' is greater than the span of [from; to] only the 'from'
+   * and 'to' values can be selected on the slider.
+   */
+  void setTickWidth(float width);
+  
+  void setValue(float value);
+
+signals:
+  void valueChanged(float value);
+
+private slots:
+  void sliderValueChanged(int value);
+
+protected:
+  void paintEvent(QPaintEvent *ev);
+
+private:
+  float fromSlider(int value);
+
+  bool inverted;
+  float from;
+  float to;
+  float tick_width;
+};
+
+#endif/*__DRUMGIZMO_ZOOMSLIDER_H__*/