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diff --git a/src/komposetaskvisualizer.h b/src/komposetaskvisualizer.h
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+//
+// C++ Interface: %{MODULE}
+//
+// Description:
+//
+//
+// Author: %{AUTHOR} <%{EMAIL}>, (C) %{YEAR}
+//
+// Copyright: See COPYING file that comes with this distribution
+//
+//
+#ifndef KOMPOSETASKVISUALIZER_H
+#define KOMPOSETASKVISUALIZER_H
+
+#include <qobject.h>
+
+#include "komposetask.h"
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <Imlib2.h>
+
+#ifdef COMPOSITE
+#include <X11/Xatom.h>
+#include <X11/extensions/Xcomposite.h>
+#include <X11/extensions/Xdamage.h>
+#include <X11/extensions/Xrender.h>
+#endif
+
+enum ImageEffect { IEFFECT_NONE, IEFFECT_TITLE, IEFFECT_MINIMIZED, IEFFECT_MINIMIZED_AND_TITLE, IEFFECT_HIGHLIGHT };
+
+class QPixmap;
+class QSize;
+
+/**
+@author Hans Oischinger
+*/
+class KomposeTaskVisualizer : public QObject
+{
+  Q_OBJECT
+public:
+  KomposeTaskVisualizer(KomposeTask *parent, const char *name = 0);
+  ~KomposeTaskVisualizer();
+
+  void renderOnPixmap( QPixmap* pix, int effect );
+
+protected:
+  void applyEffect();
+
+protected slots:
+  void initXComposite();
+  void captureScreenshot_GrabWindow();
+  void updateXCompositeNamedPixmap();
+  void renderScaledScreenshot( QSize size );
+
+  void setScaledScreenshotDirty() { scaledScreenshotDirty = true; }
+  void clearCached();
+  void enablePasvScreenshots();
+
+public slots:
+  void slotTaskActivated();
+  void slotUpdateScreenshot();
+
+private:
+  KomposeTask *task;
+  QPixmap screenshot;
+  QPixmap scaledScreenshot;
+  bool scaledScreenshotDirty;
+  bool screenshotSuspended;   // suspend pasv screenshots for this task
+  bool screenshotBlocked;   // dis/enable pasv screenshots for this task
+
+  Imlib_Color_Modifier cmHighlight, cmMinimized;
+  int lasteffect; // the effect that has been applied to scaledScreenshot
+
+#ifdef COMPOSITE
+  Pixmap windowBackingPix;
+  bool validBackingPix;
+  Display *dpy;
+  XRenderPictFormat *format;
+  XRenderPictureAttributes pa;
+  bool hasAlpha;
+  Damage damage;
+  bool compositeInit;  // true if composite&damage has been initialised
+#endif
+};
+
+#endif