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author | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-01-17 08:33:13 +0000 |
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committer | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-01-17 08:33:13 +0000 |
commit | 5543c8d9438bdee5065f9c30e418f9b664aee170 (patch) | |
tree | 3f360005ae611849a11adab769c34033dee2147f /digikam/libs/widgets/common/previewwidget.h | |
download | digikam-5543c8d9438bdee5065f9c30e418f9b664aee170.tar.gz digikam-5543c8d9438bdee5065f9c30e418f9b664aee170.zip |
Added developer-abandoned KDE3 version of Digikam
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/digikam@1075997 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'digikam/libs/widgets/common/previewwidget.h')
-rw-r--r-- | digikam/libs/widgets/common/previewwidget.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/digikam/libs/widgets/common/previewwidget.h b/digikam/libs/widgets/common/previewwidget.h new file mode 100644 index 0000000..1e30769 --- /dev/null +++ b/digikam/libs/widgets/common/previewwidget.h @@ -0,0 +1,130 @@ +/* ============================================================ + * + * This file is a part of digiKam project + * http://www.digikam.org + * + * Date : 2006-06-13 + * Description : a widget to display an image preview + * + * Copyright (C) 2006-2007 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 PREVIEWWIDGET_H +#define PREVIEWWIDGET_H + +// Qt includes. + +#include <qscrollview.h> + +// Local includes. + +#include "digikam_export.h" + +class QPainter; +class QPixmap; +class QColor; + +namespace Digikam +{ + +class PreviewWidgetPriv; + +class DIGIKAM_EXPORT PreviewWidget : public QScrollView +{ +Q_OBJECT + +public: + + PreviewWidget(QWidget *parent=0); + ~PreviewWidget(); + + void setZoomFactor(double z); + void setZoomFactor(double z, bool centerView); + void setZoomFactorSnapped(double z); + + void setBackgroundColor(const QColor& color); + void fitToWindow(); + bool isFitToWindow(); + void toggleFitToWindow(); + void toggleFitToWindowOr100(); + + int zoomWidth(); + int zoomHeight(); + bool maxZoom(); + bool minZoom(); + double snapZoom(double zoom); + + double zoomFactor(); + double zoomMax(); + double zoomMin(); + void setZoomMax(double z); + void setZoomMin(double z); + +signals: + + void signalRightButtonClicked(); + void signalLeftButtonClicked(); + void signalShowNextImage(); + void signalShowPrevImage(); + void signalZoomFactorChanged(double); + void signalContentsMovedEvent(bool); + +public slots: + + void slotIncreaseZoom(); + void slotDecreaseZoom(); + void slotReset(); + +protected: + + bool m_movingInProgress; + +protected: + + enum AutoZoomMode + { + ZoomInOrOut, + ZoomInOnly + }; + + double calcAutoZoomFactor(AutoZoomMode mode = ZoomInOrOut); + int tileSize(); + void updateAutoZoom(AutoZoomMode mode = ZoomInOrOut); + void updateContentsSize(); + QRect previewRect(); + + virtual void resizeEvent(QResizeEvent *); + virtual void viewportPaintEvent(QPaintEvent *); + virtual void contentsMousePressEvent(QMouseEvent *); + virtual void contentsMouseMoveEvent(QMouseEvent *); + virtual void contentsMouseReleaseEvent(QMouseEvent *); + virtual void contentsWheelEvent(QWheelEvent *); + virtual void setContentsSize(); + virtual void viewportPaintExtraData(){}; + virtual int previewWidth()=0; + virtual int previewHeight()=0; + virtual bool previewIsNull()=0; + virtual void resetPreview()=0; + virtual void paintPreview(QPixmap *pix, int sx, int sy, int sw, int sh)=0; + virtual void zoomFactorChanged(double zoom); + +private: + + PreviewWidgetPriv* d; +}; + +} // NameSpace Digikam + +#endif /* PREVIEWWIDGET_H */ |