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Diffstat (limited to 'digikam/libs/widgets/imageplugins/imageregionwidget.h')
-rw-r--r-- | digikam/libs/widgets/imageplugins/imageregionwidget.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/digikam/libs/widgets/imageplugins/imageregionwidget.h b/digikam/libs/widgets/imageplugins/imageregionwidget.h new file mode 100644 index 0000000..d71818e --- /dev/null +++ b/digikam/libs/widgets/imageplugins/imageregionwidget.h @@ -0,0 +1,114 @@ +/* ============================================================ + * + * This file is a part of digiKam project + * http://www.digikam.org + * + * Date : 2004-08-17 + * Description : a widget to draw an image clip region. + * + * Copyright (C) 2004-2008 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 IMAGEREGIONWIDGET_H +#define IMAGEREGIONWIDGET_H + +// Qt includes. + +#include <qrect.h> + +// Local includes. + +#include "previewwidget.h" +#include "dimg.h" +#include "digikam_export.h" + +namespace Digikam +{ + +class ImageRegionWidgetPriv; + +class DIGIKAM_EXPORT ImageRegionWidget : public PreviewWidget +{ +Q_OBJECT + +public: + + enum SeparateViewMode + { + SeparateViewHorizontal=0, + SeparateViewVertical, + SeparateViewNone, + SeparateViewDuplicateVert, + SeparateViewDuplicateHorz + }; + +public: + + ImageRegionWidget(int wp, int hp, QWidget *parent=0, bool scrollBar=true); + ~ImageRegionWidget(); + + void setContentsPosition(int x, int y, bool targetDone); + void setCenterContentsPosition(); + + /** To get image region including original or/and target area depending of separate view mode. + The region is given using not scaled image unit.*/ + QRect getImageRegion(); + + /** To get target image region area to render */ + QRect getImageRegionToRender(); + + /** To get target image region image to use for render operations */ + DImg getImageRegionImage(); + + void updatePreviewImage(DImg *img); + + void backupPixmapRegion(); + void restorePixmapRegion(); + + void setHighLightPoints(const QPointArray& pointsList); + void drawSeparateView(); + +public slots: + + void slotSeparateViewToggled(int mode); + +private slots: + + void slotZoomFactorChanged(); + +private: + + void updatePixmap(DImg& img); + QRect getLocalTargetImageRegion(); + QRect getLocalImageRegionToRender(); + void viewportPaintExtraData(); + int previewWidth(); + int previewHeight(); + bool previewIsNull(); + void resetPreview(); + void setContentsSize(); + void resizeEvent(QResizeEvent *); + void contentsWheelEvent(QWheelEvent *); + + inline void paintPreview(QPixmap *pix, int sx, int sy, int sw, int sh); + +private: + + ImageRegionWidgetPriv* d; +}; + +} // NameSpace Digikam + +#endif /* IMAGEREGIONWIDGET_H */ |