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authorBent Bisballe Nyeng <deva@aasimon.org>2014-09-08 20:48:38 +0200
committerBent Bisballe Nyeng <deva@aasimon.org>2014-09-08 20:48:38 +0200
commit7776aa97fc1c69a8f28ba4bab7387fb96be9a6e4 (patch)
tree8e23cfbfe7e93bdfad4421ccb0ec8c280a0b43ed /src/zoomslider.h
parent56f5965ffa2538dfa482ae9460e9579b4a04f8fb (diff)
Import dgedit from drumgizmo repository (split into its own project).
Diffstat (limited to 'src/zoomslider.h')
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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__*/