File indexing completed on 2024-05-12 08:34:05
0001 /* ============================================================ 0002 * Date : 2009-08-26 0003 * Description : Preview image viewer. 0004 * 0005 * SPDX-FileCopyrightText: 2008-2012 Kåre Särs <kare.sars@iki .fi> 0006 * 0007 * SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL 0008 * 0009 * This program is distributed in the hope that it will be useful, 0010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 0011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0012 * GNU General Public License for more details. 0013 * 0014 * You should have received a copy of the GNU General Public License. 0015 * along with this program. If not, see <http://www.gnu.org/licenses/> 0016 * 0017 * ============================================================ */ 0018 0019 #ifndef IMAGE_VIEWER_H 0020 #define IMAGE_VIEWER_H 0021 0022 #include <QGraphicsView> 0023 class QWheelEvent; 0024 0025 class ImageViewer : public QGraphicsView 0026 { 0027 Q_OBJECT 0028 public: 0029 explicit ImageViewer(QWidget *parent = nullptr); 0030 ~ImageViewer() override; 0031 0032 void setQImage(QImage *img); 0033 0034 public Q_SLOTS: 0035 void zoomIn(); 0036 void zoomOut(); 0037 void zoom2Fit(); 0038 void zoomActualSize(); 0039 0040 protected: 0041 void wheelEvent(QWheelEvent *e) override; 0042 void drawBackground(QPainter *painter, const QRectF &rect) override; 0043 0044 private: 0045 struct Private; 0046 Private *const d; 0047 0048 }; 0049 0050 #endif 0051