imageviewer.h

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/***************************************************************************
                          imageviewer.h  -  An ImageViewer for KStars
                             -------------------
    begin                : Mon Aug 27 2001
    copyright            : (C) 2001 by Thomas Kabelmann
    email                : tk78@gmx.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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 IMAGEVIEWER_H_
#define IMAGEVIEWER_H_

#include <QFrame>
#include <QFile>
#include <QImage>
#include <QPixmap>

#include <kio/job.h>
#include <kdialog.h>

class KUrl;
class QLabel;
class QVBoxLayout;

class ImageLabel : public QFrame {
    Q_OBJECT
public:
    explicit ImageLabel( QWidget *parent );
    ~ImageLabel();
    void setImage( const QImage &img ) { m_Image = img; }

    QImage m_Image; // ImageViewer needs access to the image in order to modify it
protected:
    void paintEvent( QPaintEvent *e);

};

class ImageViewer : public KDialog {
    Q_OBJECT

public:
    ImageViewer (const KUrl &imageURL, const QString &capText, QWidget *parent = 0);

    explicit ImageViewer ( QString FileName, QWidget *parent = 0);

    ~ImageViewer();

private:
    void showImage( void );

    void loadImageFromURL( void );

    void saveFile (KUrl &url);

    QFile file;

    const KUrl m_ImageUrl;
    bool fileIsImage;
    QString filename;

    KIO::Job *downloadJob;  // download job of image -> 0 == no job is running

    ImageLabel *m_View;
    QLabel     *m_Caption;

private slots:
    void init(QString caption, QString capText);
    void downloadReady (KJob *);

    void saveFileToDisc();

    void invertColors();
};

#endif