pull render thread into the library so it can be share

svn path=/trunk/KDE/kdelibs/; revision=948058

private/wallpaperrenderthread_p.h

@@ -0,0 +1,56 @@
+/*
+  Copyright (c) 2007 Paolo Capriotti <p.capriotti@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 RENDERTHREAD_H
+#define RENDERTHREAD_H
+
+#include "backgroundpackage.h"
+#include <QColor>
+#include <QImage>
+#include <QMutex>
+#include <QThread>
+#include <QWaitCondition>
+
+class RenderThread : public QThread
+{
+Q_OBJECT
+public:
+    RenderThread();
+    virtual ~RenderThread();
+
+    int render(const QString &file,
+               const QColor &color,
+               Background::ResizeMethod method);
+
+    void setSize(const QSize &size);
+    void setRatio(float ratio);
+
+protected:
+    virtual void run();
+
+private:
+    QMutex m_mutex; // to protect parameters
+    QWaitCondition m_condition;
+
+    // protected by mutex
+    int m_current_token;
+    QString m_file;
+    QColor m_color;
+    QSize m_size;
+    float m_ratio;
+    Background::ResizeMethod m_method;
+
+    bool m_abort;
+    bool m_restart;
+
+signals:
+    void done(int token, const QImage &pixmap);
+};
+
+#endif // RENDERTHREAD_H