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diff --git a/src/utilities/imageeditor/editor/editorstackview.h b/src/utilities/imageeditor/editor/editorstackview.h
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+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date        : 2008-08-20
+ * Description : A widget stack to embed editor view.
+ *
+ * Copyright (C) 2008-2009 by Gilles Caulier <caulier dot gilles at gmail dot 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, 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.
+ *
+ * ============================================================ */
+
+#ifndef EDITORSTACKVIEW_H
+#define EDITORSTACKVIEW_H
+
+// KDE includes.
+
+#include <tqwidgetstack.h>
+
+// Local includes.
+
+#include "digikam_export.h"
+
+namespace Digikam
+{
+
+class PreviewWidget;
+class Canvas;
+class EditorStackViewPriv;
+
+class DIGIKAM_EXPORT EditorStackView : public TQWidgetStack
+{
+TQ_OBJECT
+  
+
+public:
+
+    enum StackViewMode
+    {
+        CanvasMode=0,
+        ToolViewMode
+    };
+
+public:
+
+    EditorStackView(TQWidget *parent=0);
+    ~EditorStackView();
+
+    void setCanvas(Canvas* canvas);
+    Canvas *canvas() const;
+
+    void setToolView(TQWidget* view);
+    TQWidget *toolView() const;
+
+    int  viewMode();
+    void setViewMode(int mode);
+
+    void increaseZoom();
+    void decreaseZoom();
+    void toggleFitToWindow();
+    void fitToSelect();
+    void zoomTo100Percents();
+    void setZoomFactor(double zoom);
+
+    /** Two widgets are embedded in Editor Tool to perform preview with panning and zooming:
+        a PreviewWidget derivated class or ImagePanelWidget. 
+        This method try to find the right PreviewWidget instance accordingly else return 0.
+     */
+    PreviewWidget* previewWidget() const;
+
+signals:
+
+    void signalZoomChanged(bool isMax, bool isMin, double zoom);
+
+private slots:
+
+    void slotZoomChanged(double);
+
+private:
+
+    EditorStackViewPriv* d;
+};
+
+}  // namespace Digikam
+
+#endif /* EDITORSTACKVIEW_H */