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Diffstat (limited to 'src/libs/widgets/common/paniconwidget.h')
-rw-r--r-- | src/libs/widgets/common/paniconwidget.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/src/libs/widgets/common/paniconwidget.h b/src/libs/widgets/common/paniconwidget.h new file mode 100644 index 00000000..40b0758e --- /dev/null +++ b/src/libs/widgets/common/paniconwidget.h @@ -0,0 +1,120 @@ +/* ============================================================ + * + * This file is a part of digiKam project + * http://www.digikam.org + * + * Date : 2004-08-22 + * Description : a generic widget to display a panel to choose + * a rectangular image area. + * + * 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 PANICONWIDGET_H +#define PANICONWIDGET_H + +// TQt includes. + +#include <tqwidget.h> +#include <tqrect.h> +#include <tqimage.h> + +// Local includes. + +#include "dimg.h" + +namespace Digikam +{ + +class ImagePanIconWidget; +class PanIconWidgetPriv; + +class PanIconWidget : public TQWidget +{ +TQ_OBJECT + + +public: + + PanIconWidget(TQWidget *parent=0, WFlags flags=TQt::WDestructiveClose); + ~PanIconWidget(); + + void setImage(int previewWidth, int previewHeight, const TQImage& image); + void setImage(int previewWidth, int previewHeight, const DImg& image); + + void setRegionSelection(const TQRect& regionSelection); + TQRect getRegionSelection(); + void setCenterSelection(); + + void setCursorToLocalRegionSelectionCenter(); + void setMouseFocus(); + +signals: + + // Used with ImagePreview widget. + // Emit when selection have been moved with mouse. 'targetDone' booleen + // value is used for indicate if the mouse have been released. + void signalSelectionMoved(const TQRect& rect, bool targetDone ); + + void signalSelectionTakeFocus(); + + void signalHiden(); + +public slots: + + void slotZoomFactorChanged(double); + +protected: + + void hideEvent(TQHideEvent*); + void paintEvent(TQPaintEvent*); + void mousePressEvent(TQMouseEvent*); + void mouseReleaseEvent(TQMouseEvent*); + void mouseMoveEvent(TQMouseEvent*); + void timerEvent(TQTimerEvent*); + + /** Recalculate the target selection position and emit 'signalSelectionMoved'.*/ + void regionSelectionMoved(bool targetDone); + + virtual void updatePixmap(); + +protected: + + bool m_flicker; + + int m_timerID; + int m_width; + int m_height; + int m_zoomedOrgWidth; + int m_zoomedOrgHeight; + int m_orgWidth; + int m_orgHeight; + + double m_zoomFactor; + + TQRect m_rect; + TQRect m_localRegionSelection; // Thumbnail size selection. + + TQPixmap *m_pixmap; + + +private: + + PanIconWidgetPriv* d; +}; + +} // NameSpace Digikam + +#endif /* PANICONWIDGET_H */ |