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/**********************************************************************
** Copyright (C) 2000 Trolltech AS. All rights reserved.
**
** This file is part of Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#ifndef AUDIO_WIDGET_H
#define AUDIO_WIDGET_H
#include <qwidget.h>
#include <qpainter.h>
#include <qdrawutil.h>
#include <qpixmap.h>
#include <qstring.h>
#include <qslider.h>
#include <qframe.h>
class QPixmap;
enum AudioButtons {
AudioPlay,
AudioStop,
AudioPause,
AudioNext,
AudioPrevious,
AudioVolumeUp,
AudioVolumeDown,
AudioLoop,
AudioPlayList
};
#define USE_DBLBUF
class Ticker : public QFrame {
Q_OBJECT
public:
Ticker( QWidget* parent=0 ) : QFrame( parent ) {
setFrameStyle( WinPanel | Sunken );
setText( "No Song" );
}
~Ticker() { }
void setText( const QString& text ) {
pos = 0; // reset it everytime the text is changed
scrollText = text;
pixelLen = fontMetrics().width( scrollText );
killTimers();
if ( pixelLen > width() )
startTimer( 50 );
update();
}
protected:
void timerEvent( QTimerEvent * ) {
pos = ( pos + 1 > pixelLen ) ? 0 : pos + 1;
#ifndef USE_DBLBUF
scroll( -1, 0, contentsRect() );
#else
repaint( FALSE );
#endif
}
void drawContents( QPainter *p ) {
#ifndef USE_DBLBUF
for ( int i = 0; i - pos < width() && (i < 1 || pixelLen > width()); i += pixelLen )
p->drawText( i - pos, 0, INT_MAX, height(), AlignVCenter, scrollText );
#else
// Double buffering code.
// Looks like qvfb makes it look like it flickers but I don't think it really is
QPixmap pm( width(), height() );
pm.fill( colorGroup().base() );
QPainter pmp( &pm );
for ( int i = 0; i - pos < width() && (i < 1 || pixelLen > width()); i += pixelLen )
pmp.drawText( i - pos, 0, INT_MAX, height(), AlignVCenter, scrollText );
p->drawPixmap( 0, 0, pm );
#endif
}
private:
QString scrollText;
int pos, pixelLen;
};
class AudioWidget : public QWidget {
Q_OBJECT
public:
AudioWidget( QWidget* parent=0, const char* name=0, WFlags f=0 );
~AudioWidget();
void setTickerText( const QString &text ) { songInfo->setText( text ); }
public slots:
void updateSlider( long, long );
void sliderPressed( );
void sliderReleased( );
void setPaused( bool b) { setToggleButton( AudioPause, b ); }
void setLooping( bool b) { setToggleButton( AudioLoop, b ); }
void setPlaying( bool b) { setToggleButton( AudioPlay, b ); }
void setPosition( long );
void setLength( long );
void setView( char );
signals:
void moreClicked();
void lessClicked();
void moreReleased();
void lessReleased();
void sliderMoved(long);
protected:
void paintEvent( QPaintEvent *pe );
void showEvent( QShowEvent *se );
void mouseMoveEvent( QMouseEvent *event );
void mousePressEvent( QMouseEvent *event );
void mouseReleaseEvent( QMouseEvent *event );
void timerEvent( QTimerEvent *event );
void closeEvent( QCloseEvent *event );
private:
void toggleButton( int );
void setToggleButton( int, bool );
void paintButton( QPainter *p, int i );
QPixmap *pixmaps[4];
Ticker *songInfo;
QSlider *slider;
};
#endif // AUDIO_WIDGET_H
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