workspace/plasma/wallpapers/image/renderthread.h

   1 /*
   2   Copyright (c) 2007 Paolo Capriotti <p.capriotti@gmail.com>
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8 */
   9
  10 #ifndef RENDERTHREAD_H
  11 #define RENDERTHREAD_H
  12
  13 #include "backgroundpackage.h"
  14 #include <QColor>
  15 #include <QImage>
  16 #include <QMutex>
  17 #include <QThread>
  18 #include <QWaitCondition>
  19
  20 class RenderThread : public QThread
  21 {
  22 Q_OBJECT
  23 public:
  24     RenderThread();
  25     virtual ~RenderThread();
  26
  27     int render(const QString &file,
  28                const QColor &color,
  29                Background::ResizeMethod method,
  30                Qt::TransformationMode mode);
  31
  32     void setSize(const QSize &size);
  33     void setRatio(float ratio);
  34
  35 protected:
  36     virtual void run();
  37
  38 private:
  39     QMutex m_mutex; // to protect parameters
  40     QWaitCondition m_condition;
  41
  42     // protected by mutex
  43     int m_current_token;
  44     QString m_file;
  45     QColor m_color;
  46     QSize m_size;
  47     float m_ratio;
  48     Background::ResizeMethod m_method;
  49     Qt::TransformationMode m_mode;
  50
  51     bool m_abort;
  52     bool m_restart;
  53
  54 signals:
  55     void done(int token, const QImage &pixmap);
  56 };
  57
  58 #endif // RENDERTHREAD_H