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+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date : 2005-01-04
+ * Description : a Digikam image editor plugin for superimpose a
+ * template to an image.
+ *
+ * Copyright (C) 2005-2008 by Gilles Caulier <caulier dot gilles at gmail dot com>
+ * Copyright (C) 2006-2008 by Marcel Wiesweg <marcel dot wiesweg at gmx dot 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, 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 SUPERIMPOSEWIDGET_H
+#define SUPERIMPOSEWIDGET_H
+
+// TQt includes.
+
+#include <tqwidget.h>
+#include <tqimage.h>
+#include <tqrect.h>
+#include <tqsize.h>
+#include <tqpixmap.h>
+
+// KDE includes.
+
+#include <kurl.h>
+
+// Digikam includes.
+
+#include "imageiface.h"
+#include "dimg.h"
+
+class TQPixmap;
+
+namespace Digikam
+{
+class ImageIface;
+}
+
+namespace DigikamSuperImposeImagesPlugin
+{
+
+enum Action
+{
+ ZOOMIN=0,
+ ZOOMOUT,
+ MOVE
+};
+
+class SuperImposeWidget : public TQWidget
+{
+TQ_OBJECT
+
+
+public:
+
+ SuperImposeWidget(int w, int h, TQWidget *parent=0);
+ ~SuperImposeWidget();
+
+ void setEditMode(int mode);
+ void resetEdit(void);
+ TQRect getCurrentSelection(void);
+ TQSize getTemplateSize(void);
+ Digikam::DImg makeSuperImpose(void);
+
+public slots:
+
+ void slotEditModeChanged(int mode);
+ void slotSetCurrentTemplate(const KURL& url);
+
+protected:
+
+ void paintEvent( TQPaintEvent *e );
+ void resizeEvent( TQResizeEvent * e );
+ void mousePressEvent ( TQMouseEvent * e );
+ void mouseReleaseEvent ( TQMouseEvent * e );
+ void mouseMoveEvent ( TQMouseEvent * e );
+
+ bool zoomSelection(float deltaZoomFactor);
+ void moveSelection(int x, int y);
+ void makePixmap(void);
+ void setEditModeCursor();
+
+private:
+
+ int m_w;
+ int m_h;
+
+ int m_xpos;
+ int m_ypos;
+ int m_editMode;
+ float m_zoomFactor;
+
+ TQPixmap *m_pixmap; // For image region selection manipulations.
+
+ TQRect m_rect; // For mouse drag position.
+ TQRect m_currentSelection; // Region selection in image displayed in the widget.
+
+ Digikam::DImg m_template; // Full template data.
+ Digikam::DImg m_templateScaled; // Template scaled to preview widget
+};
+
+} // NameSpace DigikamSuperImposeImagesPlugin
+
+#endif /* SUPERIMPOSEWIDGET_H */