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116 lines
2.9 KiB
116 lines
2.9 KiB
/* ============================================================
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*
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* This file is a part of digiKam project
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* http://www.digikam.org
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*
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* Date : 2004-08-17
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* Description : a widget to draw an image clip region.
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*
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* Copyright (C) 2004-2008 by Gilles Caulier <caulier dot gilles at gmail dot com>
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software Foundation;
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* either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* ============================================================ */
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#ifndef IMAGEREGIONWIDGET_H
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#define IMAGEREGIONWIDGET_H
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// TQt includes.
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#include <tqrect.h>
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// Local includes.
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#include "previewwidget.h"
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#include "dimg.h"
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#include "digikam_export.h"
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namespace Digikam
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{
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class ImageRegionWidgetPriv;
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class DIGIKAM_EXPORT ImageRegionWidget : public PreviewWidget
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{
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TQ_OBJECT
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public:
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enum SeparateViewMode
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{
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SeparateViewHorizontal=0,
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SeparateViewVertical,
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SeparateViewNone,
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SeparateViewDuplicateVert,
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SeparateViewDuplicateHorz
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};
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public:
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ImageRegionWidget(int wp, int hp, TQWidget *parent=0, bool scrollBar=true);
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~ImageRegionWidget();
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void setContentsPosition(int x, int y, bool targetDone);
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void setCenterContentsPosition();
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/** To get image region including original or/and target area depending of separate view mode.
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The region is given using not scaled image unit.*/
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TQRect getImageRegion();
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/** To get target image region area to render */
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TQRect getImageRegionToRender();
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/** To get target image region image to use for render operations */
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DImg getImageRegionImage();
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void updatePreviewImage(DImg *img);
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void backupPixmapRegion();
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void restorePixmapRegion();
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void setHighLightPoints(const TQPointArray& pointsList);
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void drawSeparateView();
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public slots:
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void slotSeparateViewToggled(int mode);
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private slots:
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void slotZoomFactorChanged();
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private:
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void updatePixmap(DImg& img);
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TQRect getLocalTargetImageRegion();
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TQRect getLocalImageRegionToRender();
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void viewportPaintExtraData();
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int previewWidth();
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int previewHeight();
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bool previewIsNull();
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void resetPreview();
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void setContentsSize();
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void resizeEvent(TQResizeEvent *);
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void contentsWheelEvent(TQWheelEvent *);
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inline void paintPreview(TQPixmap *pix, int sx, int sy, int sw, int sh);
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private:
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ImageRegionWidgetPriv* d;
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};
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} // NameSpace Digikam
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#endif /* IMAGEREGIONWIDGET_H */
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