USA.
*/
-#include <math.h>
+#include <cmath>
#include <QDebug>
#include <QMouseEvent>
-#ifdef Q_WS_MAEMO_51
- #include <QAbstractKineticScroller>
+#ifndef Q_WS_MAEMO_5
+ #include <QGLWidget>
#endif // Q_WS_MAEMO_5
#include "common.h"
MapView::MapView(QWidget *parent) : QGraphicsView(parent)
{
+#ifndef Q_WS_MAEMO_5
+ // use opengl for desktop to gain some performance in map view
+ // opengl can't be used in scrathbox
+ setViewport(new QGLWidget);
+#endif // Q_WS_MAEMO_5
+
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+}
-#ifdef Q_WS_MAEMO_51
- qDebug() << __PRETTY_FUNCTION__ << "QAbstractKineticScroller built in";
-
- QAbstractKineticScroller *scroller = this->property("kineticScroller")
- .value<QAbstractKineticScroller *>();
+void MapView::setZoomLevel(int zoomLevel)
+{
+ m_zoomTargetScale = pow(2, zoomLevel - MAX_ZOOM_LEVEL);
+ m_zoomScaleDelta = (m_zoomTargetScale - currentScale()) / (ZOOM_FPS * ZOOM_TIME);
- if (scroller)
- scroller->setEnabled(true);
-#endif // Q_WS_MAEMO_5
+ startTimer(1000/ZOOM_FPS);
}
-void MapView::setZoomLevel(int zoomLevel)
+void MapView::timerEvent(QTimerEvent *event)
{
- double scaleFactor = pow(2, zoomLevel - MAX_ZOOM_LEVEL);
+ qreal scaleFactor = currentScale();
+
+// qDebug() << __PRETTY_FUNCTION__
+// << "abs(m_zoomTargetScale - scaleFactor)" << fabs(m_zoomTargetScale - scaleFactor)
+// << "abs(m_zoomScaleDelta)" << fabs(m_zoomScaleDelta);
+
+ if (fabs(m_zoomTargetScale - scaleFactor) <= fabs(m_zoomScaleDelta)) {
+ scaleFactor = m_zoomTargetScale;
+ killTimer(event->timerId());
+ }
+ else {
+ scaleFactor += m_zoomScaleDelta;
+ }
+
+// qDebug() << __PRETTY_FUNCTION__ << "currentScale:" << currentScale()
+// << "m_zoomScaleDelta" << m_zoomScaleDelta
+// << "scaleFactor:" << scaleFactor;
+
QTransform transform;
transform.scale(scaleFactor, scaleFactor);
setTransform(transform);
}
+qreal MapView::currentScale()
+{
+ QTransform currentTransform = transform();
+ return currentTransform.m11();
+}
+
void MapView::mouseMoveEvent(QMouseEvent *event)
{
m_scenePosition += m_mousePosition - mapToScene(event->pos());