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);
+}
- startTimer(1000/60);
-
-#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);
}
-void MapView::mouseMoveEvent(QMouseEvent *event)
+qreal MapView::currentScale()
{
-// qDebug() << __PRETTY_FUNCTION__ << "scene coordinate:" << mapToScene(event->pos());
-// if (event->buttons() & Qt::LeftButton)
-// {
-// QPointF delta = mapToScene(event->pos()) - m_mouseClickLocation;
-// qDebug() << __PRETTY_FUNCTION__ << "delta:" << delta;
-//
-// int x = size().width() / 2;
-// int y = size().height() / 2;
-// QPointF sceneCoordinate = mapToScene(QPoint(x, y)) + delta;
-// centerToSceneCoordinates(sceneCoordinate);
-// }
- m_scenePosition += m_mousePressPosition - event->pos();
- centerToSceneCoordinates(m_scenePosition);
-
- if (m_mouseIsDown)
- m_mouseSpeed = event->pos() - m_mousePressPosition;
-
- m_mousePressPosition = event->pos();
+ QTransform currentTransform = transform();
+ return currentTransform.m11();
}
-void MapView::mousePressEvent(QMouseEvent *event)
+void MapView::mouseMoveEvent(QMouseEvent *event)
{
-// qDebug() << __PRETTY_FUNCTION__ << "scene coordinate:" << mapToScene(event->pos());
-//
-// if (event->button() == Qt::LeftButton)
-// m_mouseClickLocation = mapToScene(event->pos());
- m_mousePressPosition = event->pos();
- m_mouseIsDown = true;
- m_mouseSpeed = QPointF(0, 0);
+ m_scenePosition += m_mousePosition - mapToScene(event->pos());
- m_scenePosition = mapToScene(width() / 2 - 1, height() / 2 - 1);
-}
+ emit viewScrolled(m_scenePosition);
+ //qDebug() << __PRETTY_FUNCTION__ << "m_scenePosition" << m_scenePosition;
-void MapView::mouseReleaseEvent(QMouseEvent *) {
- m_mouseIsDown = false;
+ m_mousePosition = mapToScene(event->pos());
}
-void MapView::timerEvent(QTimerEvent *event) {
- if (!m_mouseIsDown) {
- m_mouseSpeed *= 0.97;
- if (m_mouseSpeed.manhattanLength() < 0.1)
- m_mouseSpeed = QPointF(0, 0);
-
-// qDebug() << __PRETTY_FUNCTION__ << "m_mouseSpeed" << m_mouseSpeed;
-
- m_scenePosition -= m_mouseSpeed;
- centerToSceneCoordinates(m_scenePosition);
- }
+void MapView::mousePressEvent(QMouseEvent *event)
+{
+ m_mousePosition = mapToScene(event->pos());
+ m_scenePosition = mapToScene(width() / 2 - 1, height() / 2 - 1);
}
+
void MapView::centerToSceneCoordinates(QPointF sceneCoordinate)
{
+ //qDebug() << __PRETTY_FUNCTION__ << "sceneCoordinate" << sceneCoordinate;
centerOn(sceneCoordinate);
}
-//bool MapView::event(QEvent *event)
-//{
-// qDebug() << __PRETTY_FUNCTION__ << "event type:" << event->type();
-// event->ignore();
-// QObject::event(event);
-// return false;
-//}
+void MapView::resizeEvent(QResizeEvent *event)
+{
+ qDebug() << "Resize event: " << event->size();
+ emit viewResized(event->size());
+}