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136 lines
3.2 KiB
136 lines
3.2 KiB
/*
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Rosegarden
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A MIDI and audio sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <richard.bown@ferventsoftware.com>
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The moral rights of Guillaume Laurent, Chris Cannam, and Richard
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Bown to claim authorship of this work have been asserted.
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Other copyrights also apply to some parts of this work. Please
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see the AUTHORS file and individual file headers for details.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#ifndef _RG_ROSEGARDENFADER_H_
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#define _RG_ROSEGARDENFADER_H_
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#include "base/AudioLevel.h"
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#include <map>
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#include <tqcolor.h>
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#include <tqwidget.h>
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#include <utility>
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class TQWheelEvent;
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class TQTimer;
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class TQPixmap;
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class TQPaintEvent;
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class TQMouseEvent;
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namespace Rosegarden
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{
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class TextFloat;
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class Fader : public TQWidget
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{
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TQ_OBJECT
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public:
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/**
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* Construct a dB fader. The fader calculates its orientation
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* based on the given dimensions.
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*/
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Fader(AudioLevel::FaderType,
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int width, int height, TQWidget *parent);
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/**
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* Construct a fader on an integral scale. The fader calculates
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* its orientation based on the given dimensions.
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*/
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Fader(int min, int max, int deflt,
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int width, int height, TQWidget *parent);
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/**
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* Construct a fader on an integral scale, with a 1:1 ratio of
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* pixel positions and values.
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*/
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Fader(int min, int max, int deflt,
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bool vertical, TQWidget *parent);
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virtual ~Fader();
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void setOutlineColour(TQColor);
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float getFaderLevel() const;
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public slots:
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void setFader(float value);
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void slotFloatTimeout();
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signals:
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void faderChanged(float);
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protected:
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virtual void paintEvent(TQPaintEvent *);
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virtual void mousePressEvent(TQMouseEvent *);
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virtual void mouseReleaseEvent(TQMouseEvent *);
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virtual void mouseMoveEvent(TQMouseEvent *);
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virtual void wheelEvent(TQWheelEvent *);
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float position_to_value(int);
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int value_to_position(float);
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void calculateGroovePixmap();
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void calculateButtonPixmap();
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void showFloatText();
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bool m_integral;
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bool m_vertical;
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int m_sliderMin;
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int m_sliderMax;
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float m_value;
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int m_min;
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int m_max;
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AudioLevel::FaderType m_type;
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int m_clickMousePos;
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int m_clickButtonPos;
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TextFloat *m_float;
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TQTimer *m_floatTimer;
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TQPixmap *groovePixmap();
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TQPixmap *buttonPixmap();
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TQColor m_outlineColour;
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typedef std::pair<int, int> SizeRec;
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typedef std::map<unsigned int, TQPixmap *> ColourPixmapRec; // key is TQColor::pixel()
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typedef std::pair<ColourPixmapRec, TQPixmap *> PixmapRec;
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typedef std::map<SizeRec, PixmapRec> PixmapCache;
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static PixmapCache m_pixmapCache;
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};
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// AudioVUMeter - a vertical audio meter. Default is stereo.
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//
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}
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#endif
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