2 Situare - A location system for Facebook
3 Copyright (C) 2010 Ixonos Plc. Authors:
5 Sami Rämö - sami.ramo@ixonos.com
6 Pekka Nissinen - pekka.nissinen@ixonos.com
8 Situare is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License
10 version 2 as published by the Free Software Foundation.
12 Situare is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Situare; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
26 #include <QGraphicsView>
28 class QPropertyAnimation;
31 * @brief Map view widget
33 * @author Sami Rämö - sami.ramo (at) ixonos.com
34 * @author Pekka Nissinen - pekka.nissinen (at) ixonos.com
36 class MapView : public QGraphicsView
45 Q_PROPERTY(qreal viewScale READ viewScale WRITE setViewScale)
51 * @param parent Parent
53 MapView(QWidget *parent = 0);
55 /*******************************************************************************
56 * BASE CLASS INHERITED AND REIMPLEMENTED MEMBER FUNCTIONS
57 ******************************************************************************/
60 * @brief Called when view is resized.
62 * @param event resize event
64 void resizeEvent(QResizeEvent *event);
68 * @brief Event handler for mouse move events
70 * Does calculate mouse movement delta from last event position and new view center
71 * based on that delta. Saves current event position for next round. Emits viewScrolled
72 * signal and doesn't actually scroll the view.
73 * @param event Mouse event
75 void mouseMoveEvent(QMouseEvent *event);
78 * @brief Event handler for mouse press events
80 * Saves inial values for mouse and scene location for dragging view.
81 * @param event Mouse event
83 void mousePressEvent(QMouseEvent *event);
85 void mouseReleaseEvent(QMouseEvent *event);
87 /*******************************************************************************
88 * MEMBER FUNCTIONS AND SLOTS
89 ******************************************************************************/
92 * @brief Slot for centering view to new location
94 * @param sceneCoordinate Scene coordinates of the new center point
96 void centerToSceneCoordinates(QPoint sceneCoordinate);
99 * @brief Set zoom level of the view
101 * @param zoomLevel Zoom level
103 void setZoomLevel(int zoomLevel);
107 * @brief Set new view scale
109 * @param viewScale New scaling factor
111 void setViewScale(qreal viewScale);
114 * @brief Get current view scale
116 * @return Current view scaling factor
120 /*******************************************************************************
122 ******************************************************************************/
125 * @brief Signal for view resize events.
127 * Signal is emitted when view has been resized.
128 * @param size view size
130 void viewResized(const QSize &size);
133 * @brief Signal for view scroll events
135 * Signal is emitted when view is scrolled.
136 * @param sceneCoordinate Scene coordinates of the new center point of the view
138 void viewScrolled(QPoint sceneCoordinate);
141 * @brief Signal for informing that zooming animation is finished
143 void viewZoomFinished();
145 /*******************************************************************************
147 ******************************************************************************/
149 QPointF m_mousePosition; ///< Previous mouse event position
150 QPointF m_scenePosition; ///< New center position
151 QPropertyAnimation *m_zoomAnimation; ///< Zoom animation