Clementine-audio-player-Mac.../src/sliderwidget.h

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2009-12-24 20:16:07 +01:00
/***************************************************************************
amarokslider.h - description
-------------------
begin : Dec 15 2003
copyright : (C) 2003 by Mark Kretschmann
email : markey@web.de
copyright : (C) 2005 by Gábor Lehel
email : illissius@gmail.com
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#ifndef AMAROKSLIDER_H
#define AMAROKSLIDER_H
#include <QPixmap>
#include <QSlider>
#include <QList>
class QPalette;
class QTimer;
namespace Amarok
{
class Slider : public QSlider
{
Q_OBJECT
public:
Slider( Qt::Orientation, QWidget*, uint max = 0 );
virtual void setValue( int );
//WARNING non-virtual - and thus only really intended for internal use
//this is a major flaw in the class presently, however it suits our
//current needs fine
int value() const { return adjustValue( QSlider::value() ); }
signals:
//we emit this when the user has specifically changed the slider
//so connect to it if valueChanged() is too generic
//Qt also emits valueChanged( int )
void sliderReleased( int );
protected:
virtual void wheelEvent( QWheelEvent* );
virtual void mouseMoveEvent( QMouseEvent* );
virtual void mouseReleaseEvent( QMouseEvent* );
virtual void mousePressEvent( QMouseEvent* );
virtual void slideEvent( QMouseEvent* );
bool m_sliding;
/// we flip the value for vertical sliders
int adjustValue( int v ) const
{
int mp = (minimum() + maximum()) / 2;
return orientation() == Qt::Vertical ? mp - (v - mp) : v;
}
private:
bool m_outside;
int m_prevValue;
Slider( const Slider& ); //undefined
Slider &operator=( const Slider& ); //undefined
};
class PrettySlider : public Slider
{
Q_OBJECT
public:
typedef enum
{
Normal, // Same behavior as Slider *unless* there's a moodbar
Pretty
} SliderMode;
PrettySlider( Qt::Orientation orientation, SliderMode mode,
QWidget *parent, uint max = 0 );
protected:
virtual void slideEvent( QMouseEvent* );
virtual void mousePressEvent( QMouseEvent* );
private:
PrettySlider( const PrettySlider& ); //undefined
PrettySlider &operator=( const PrettySlider& ); //undefined
SliderMode m_mode;
};
class VolumeSlider: public Slider
{
Q_OBJECT
public:
VolumeSlider( QWidget *parent, uint max = 0 );
protected:
virtual void paintEvent( QPaintEvent* );
virtual void enterEvent( QEvent* );
virtual void leaveEvent( QEvent* );
virtual void paletteChange( const QPalette& );
virtual void slideEvent( QMouseEvent* );
virtual void mousePressEvent( QMouseEvent* );
virtual void contextMenuEvent( QContextMenuEvent* );
virtual void wheelEvent( QWheelEvent *e );
private slots:
virtual void slotAnimTimer();
private:
void generateGradient();
VolumeSlider( const VolumeSlider& ); //undefined
VolumeSlider &operator=( const VolumeSlider& ); //undefined
////////////////////////////////////////////////////////////////
static const int ANIM_INTERVAL = 18;
static const int ANIM_MAX = 18;
bool m_animEnter;
int m_animCount;
QTimer* m_animTimer;
QPixmap m_pixmapInset;
QPixmap m_pixmapGradient;
QList<QPixmap> m_handlePixmaps;
};
}
#endif