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| 1 | /* |
| 2 | * Copyright 2010-2011 Niels Kummerfeldt <niels.kummerfeldt@tu-harburg.de> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 17 | * Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #ifndef ABSTRACT_LAYER_H |
| 21 | #define ABSTRACT_LAYER_H |
| 22 | |
| 23 | #include <QtCore/QObject> |
| 24 | #include <QtGui/QKeyEvent> |
| 25 | #include <QtGui/QPainter> |
| 26 | |
| 27 | class MapWidget; |
| 28 | |
| 29 | class AbstractLayer : public QObject |
| 30 | { |
| 31 | Q_OBJECT |
| 32 | public: |
| 33 | AbstractLayer(MapWidget *map); |
| 34 | |
| 35 | virtual void load(const QString &filename); |
| 36 | virtual void zoom(int level); |
| 37 | virtual void pan(const QPoint &move); |
| 38 | virtual void keyPressed(QKeyEvent *event); |
| 39 | |
| 40 | void paintLayer(QPainter *painter); |
| 41 | |
| 42 | bool isVisible() const; |
| 43 | |
| 44 | public slots: |
| 45 | void setVisible(bool visible = true); |
| 46 | void toggleVisibility(); |
| 47 | |
| 48 | signals: |
| 49 | void visibilityChanged(bool visible); |
| 50 | |
| 51 | protected: |
| 52 | MapWidget *map() const; |
| 53 | virtual void paint(QPainter *painter) = 0; |
| 54 | |
| 55 | private: |
| 56 | MapWidget *m_map; |
| 57 | bool m_visible; |
| 58 | |
| 59 | }; |
| 60 | |
| 61 | #endif // ABSTRACT_LAYER_H |
| 62 |
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