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/*
   Copyright (C) 2002 Simon Hausmann <simon@lst.de>
             (C) 2002 Max Reiss <harlekin@handhelds.org>
             (C) 2002 L. Potter <ljp@llornkcor.com>
             (C) 2002 Holger Freyther <zecke@handhelds.org>

   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.

   This program 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 this program; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#ifndef MEDIAWIDGET_H
#define MEDIAWIDGET_H

#include <qbitmap.h>
#include <qwidget.h>
#include <qmap.h>

#include "mediaplayerstate.h"
#include "playlistwidget.h"

class Skin;

class MediaWidget : public QWidget
{
    Q_OBJECT
public:
    enum Command { Play = 0, Stop, Next, Previous, VolumeUp, VolumeDown, Loop, PlayList, Forward, Back, FullScreen, Undefined };
    enum ButtonType { NormalButton, ToggleButton };

    struct Button
    {
        Button() : command( Undefined ), type( NormalButton ), isDown( false ) {}

        Command command;

        ButtonType type; // this should be part of the bitfield but gcc2 is too buggy to support this :-(
        bool isDown : 1;

        QBitmap mask;
        QPixmap pixUp;
        QPixmap pixDown;
    };
    typedef QValueList<Button> ButtonVector;

    struct SkinButtonInfo
    {
        Command command;
        const char *fileName;
        ButtonType type;
    };

    struct GUIInfo
    {
        GUIInfo() : buttonInfo( 0 ), buttonCount( 0 ) {}
        GUIInfo( const QString &_fileNameInfix, const SkinButtonInfo *_buttonInfo, const uint _buttonCount )
            : fileNameInfix( _fileNameInfix ), buttonInfo( _buttonInfo ), buttonCount( _buttonCount )
        {}

        QString fileNameInfix;
        const SkinButtonInfo *buttonInfo;
        const uint buttonCount;
    };
    typedef QValueList<GUIInfo> GUIInfoList;

    MediaWidget( PlayListWidget &_playList, MediaPlayerState &_mediaPlayerState, QWidget *parent = 0, const char *name = 0 );
    virtual ~MediaWidget();

public slots:
    virtual void setDisplayType( MediaPlayerState::DisplayType displayType ) = 0;
    virtual void setLength( long length ) = 0;
    virtual void setPlaying( bool playing ) = 0;

    virtual void loadSkin() = 0;

signals:
    void moreReleased();
    void lessReleased();
    void forwardReleased();
    void backReleased();
    void forwardClicked();
    void backClicked();
    void moreClicked();
    void lessClicked();

protected:
    void setupButtons( const SkinButtonInfo *skinInfo, uint buttonCount,
                       const Skin &skin );
    Button setupButton( const SkinButtonInfo &buttonInfo, const Skin &skin );

    void loadDefaultSkin( const GUIInfo &guiInfo );
    void loadSkin( const SkinButtonInfo *skinInfo, uint buttonCount, const Skin &skin );

    virtual void closeEvent( QCloseEvent * );

    virtual void paintEvent( QPaintEvent *pe );

    virtual void resizeEvent( QResizeEvent *e );

    Button *buttonAt( const QPoint &position );

    virtual void mousePressEvent( QMouseEvent *event );
    virtual void mouseReleaseEvent( QMouseEvent *event );

    virtual void makeVisible();

    void handleCommand( Command command, bool buttonDown );

    bool isOverButton( const QPoint &position, int buttonId ) const;

    void paintAllButtons( QPainter &p );
    void paintButton( const Button &button );
    void paintButton( QPainter &p, const Button &button );

    void setToggleButton( Button &button, bool down );
    void setToggleButton( Command command, bool down );
    void toggleButton( Button &button );

    MediaPlayerState &mediaPlayerState;
    PlayListWidget &playList;

    ButtonVector buttons;

    QImage buttonMask;

    QPoint upperLeftOfButtonMask;

    QPixmap backgroundPixmap;
    QImage buttonUpImage;
    QImage buttonDownImage;

    static QPixmap combineImageWithBackground( const QImage &background, const QPixmap &pixmap, const QPoint &offset );
    static QPixmap addMaskToPixmap( const QPixmap &pix, const QBitmap &mask );
};

#endif // MEDIAWIDGET_H
/* vim: et sw=4 ts=4
 */