2 Situare - A location system for Facebook
3 Copyright (C) 2010 Ixonos Plc. Authors:
5 Sami Rämö - sami.ramo@ixonos.com
7 Situare is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License
9 version 2 as published by the Free Software Foundation.
11 Situare is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with Situare; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
25 #include <QMouseEvent>
28 #include <QAbstractKineticScroller>
29 #endif // Q_WS_MAEMO_5
34 MapView::MapView(QWidget *parent) : QGraphicsView(parent)
36 setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
37 setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
40 qDebug() << __PRETTY_FUNCTION__ << "QAbstractKineticScroller built in";
42 QAbstractKineticScroller *scroller = this->property("kineticScroller")
43 .value<QAbstractKineticScroller *>();
46 scroller->setEnabled(true);
47 #endif // Q_WS_MAEMO_5
50 void MapView::setZoomLevel(int zoomLevel)
52 m_zoomTargetScale = pow(2, zoomLevel - MAX_ZOOM_LEVEL);
53 m_zoomScaleDelta = (m_zoomTargetScale - currentScale()) / (ZOOM_FPS * ZOOM_TIME);
55 startTimer(1000/ZOOM_FPS);
58 void MapView::timerEvent(QTimerEvent *event)
60 qreal scaleFactor = currentScale();
62 // qDebug() << __PRETTY_FUNCTION__
63 // << "abs(m_zoomTargetScale - scaleFactor)" << fabs(m_zoomTargetScale - scaleFactor)
64 // << "abs(m_zoomScaleDelta)" << fabs(m_zoomScaleDelta);
66 if (fabs(m_zoomTargetScale - scaleFactor) <= fabs(m_zoomScaleDelta)) {
67 scaleFactor = m_zoomTargetScale;
68 killTimer(event->timerId());
71 scaleFactor += m_zoomScaleDelta;
74 // qDebug() << __PRETTY_FUNCTION__ << "currentScale:" << currentScale()
75 // << "m_zoomScaleDelta" << m_zoomScaleDelta
76 // << "scaleFactor:" << scaleFactor;
79 transform.scale(scaleFactor, scaleFactor);
80 setTransform(transform);
83 qreal MapView::currentScale()
85 QTransform currentTransform = transform();
86 return currentTransform.m11();
89 void MapView::mouseMoveEvent(QMouseEvent *event)
91 m_scenePosition += m_mousePosition - mapToScene(event->pos());
93 emit viewScrolled(m_scenePosition);
94 //qDebug() << __PRETTY_FUNCTION__ << "m_scenePosition" << m_scenePosition;
96 m_mousePosition = mapToScene(event->pos());
99 void MapView::mousePressEvent(QMouseEvent *event)
101 m_mousePosition = mapToScene(event->pos());
102 m_scenePosition = mapToScene(width() / 2 - 1, height() / 2 - 1);
106 void MapView::centerToSceneCoordinates(QPointF sceneCoordinate)
108 //qDebug() << __PRETTY_FUNCTION__ << "sceneCoordinate" << sceneCoordinate;
109 centerOn(sceneCoordinate);
112 void MapView::resizeEvent(QResizeEvent *event)
114 qDebug() << "Resize event: " << event->size();
115 emit viewResized(event->size());