Copyright (C) 2010 Ixonos Plc. Authors:
Sami Rämö - sami.ramo@ixonos.com
+ Pekka Nissinen - pekka.nissinen@ixonos.com
Situare is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
#include <QDebug>
#include <QMouseEvent>
-#ifndef Q_WS_MAEMO_5
- #include <QGLWidget>
-#endif // Q_WS_MAEMO_5
-
-#ifdef Q_WS_MAEMO_5
- #include <QAbstractKineticScroller>
-#endif // Q_WS_MAEMO_5
-
-#include "common.h"
+#include "mapcommon.h"
+#include "mapscroller.h"
#include "mapview.h"
-MapView::MapView(QWidget *parent) : QGraphicsView(parent)
+const int KINETIC_SCROLL_TIME_MS = 1000;
+
+MapView::MapView(QWidget *parent)
+ : QGraphicsView(parent)
{
-/**
- * Use OpenGL for desktop to gain some performance in map view.
- * OpenGL can't be used in scratchbox.
- */
-#ifndef Q_WS_MAEMO_5
- setViewport(new QGLWidget);
-#endif // !Q_WS_MAEMO_5
-
-/**
- * Use kinetic scrolling for Maemo5 and QGraphicsViews drag mode
- * ScrollHandDrag for other environments
- */
-#ifdef Q_WS_MAEMO_5
- QAbstractKineticScroller *scroller = property("kineticScroller")
- .value<QAbstractKineticScroller *>();
- if (scroller)
- scroller->setEnabled(true);
-#else
- setDragMode(QGraphicsView::ScrollHandDrag);
-#endif // Q_WS_MAEMO_5
+ qDebug() << __PRETTY_FUNCTION__;
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+
+ m_zoomAnimation = new QPropertyAnimation(this, "viewScale", this);
+ connect(m_zoomAnimation, SIGNAL(finished()),
+ this, SIGNAL(viewZoomFinished()));
+
+ setOptimizationFlag(QGraphicsView::DontAdjustForAntialiasing);
+
+ m_scroller = &MapScroller::getInstance();
}
-void MapView::setZoomLevel(int zoomLevel)
+void MapView::centerToSceneCoordinates(QPoint sceneCoordinate)
+{
+ qDebug() << __PRETTY_FUNCTION__ << "sceneCoordinate" << sceneCoordinate;
+
+ centerOn(sceneCoordinate);
+}
+
+void MapView::mouseMoveEvent(QMouseEvent *event)
{
- m_zoomTargetScale = pow(2, zoomLevel - MAX_MAP_ZOOM_LEVEL);
- m_zoomScaleDelta = (m_zoomTargetScale - currentScale()) / (ZOOM_FPS * ZOOM_TIME);
+ m_scenePosition += m_mouseLastScenePosition - mapToScene(event->pos()).toPoint();
+
+ qDebug() << __PRETTY_FUNCTION__ << "m_scenePosition:" << m_scenePosition;
+
+ if (m_index >= VALUES)
+ m_index = 0;
+
+ m_dragMovement[m_index] = m_mouseLastViewPosition - event->pos();
+ m_dragTime[m_index] = time.elapsed();
+ time.start();
+
+// qWarning() << __PRETTY_FUNCTION__ << m_index << m_dragMovement[m_index].x() << m_dragMovement[m_index].y() << m_dragTime[m_index];
+
+ m_index++;
- startTimer(1000/ZOOM_FPS);
+// qWarning() << __PRETTY_FUNCTION__ << m_dragViewSpeed.x() << m_dragViewSpeed.y();
+// qWarning() << __PRETTY_FUNCTION__ << "elapsed:" << time.elapsed() << "ms";
+
+ emit viewScrolled(m_scenePosition);
+
+ m_mouseLastScenePosition = mapToScene(event->pos()).toPoint();
+ m_mouseLastViewPosition = event->pos();
}
-void MapView::timerEvent(QTimerEvent *event)
+void MapView::mousePressEvent(QMouseEvent *event)
{
- qreal scaleFactor = currentScale();
+ qDebug() << __PRETTY_FUNCTION__;
+
+ time.start();
-// qDebug() << __PRETTY_FUNCTION__
-// << "abs(m_zoomTargetScale - scaleFactor)" << fabs(m_zoomTargetScale - scaleFactor)
-// << "abs(m_zoomScaleDelta)" << fabs(m_zoomScaleDelta);
+ m_scroller->stop();
- if (fabs(m_zoomTargetScale - scaleFactor) <= fabs(m_zoomScaleDelta)) {
- scaleFactor = m_zoomTargetScale;
- killTimer(event->timerId());
+ QGraphicsView::mousePressEvent(event);
+
+ m_mouseLastScenePosition = mapToScene(event->pos()).toPoint();
+ m_mouseLastViewPosition = event->pos();
+ m_scenePosition = mapToScene(width() / 2 - 1, height() / 2 - 1).toPoint();
+
+ for (int i = 0; i < VALUES; i++) {
+ m_dragMovement[i] = QPoint();
+ m_dragTime[i] = 0;
}
- else {
- scaleFactor += m_zoomScaleDelta;
+ m_index = 0;
+}
+
+void MapView::mouseReleaseEvent(QMouseEvent *event)
+{
+// qWarning() << __PRETTY_FUNCTION__;
+
+ const qreal MS_PER_S = 1000;
+ const qreal SPEED_TO_DISTANCE_FACTOR = KINETIC_SCROLL_TIME_MS / MS_PER_S * 0.10;
+
+ QGraphicsView::mouseReleaseEvent(event);
+
+ QPointF dragViewSpeed;
+ int values = 0;
+ for (int i = 0; i < VALUES; i++) {
+ if (m_dragTime > 0) {
+ dragViewSpeed += m_dragMovement[i] / (m_dragTime[i] / MS_PER_S);
+ values++;
+ }
+// qWarning() << __PRETTY_FUNCTION__ << m_dragMovement[i].x() << m_dragMovement[i].y() << m_dragTime[i];
}
+ dragViewSpeed /= values;
+ dragViewSpeed *= SPEED_TO_DISTANCE_FACTOR;
-// qDebug() << __PRETTY_FUNCTION__ << "currentScale:" << currentScale()
-// << "m_zoomScaleDelta" << m_zoomScaleDelta
-// << "scaleFactor:" << scaleFactor;
+// qWarning() << __PRETTY_FUNCTION__ << dragViewSpeed.x() << dragViewSpeed.y();
- QTransform transform;
- transform.scale(scaleFactor, scaleFactor);
- setTransform(transform);
+ QPointF dragSceneSpeed = dragViewSpeed * (1 << (MAX_MAP_ZOOM_LEVEL - m_zoomLevel));
+
+ m_scroller->setDuration(KINETIC_SCROLL_TIME_MS);
+ m_scroller->setStartValue(m_scenePosition);
+ m_scroller->setEndValue(m_scenePosition + dragSceneSpeed.toPoint());
+ m_scroller->start();
}
-qreal MapView::currentScale()
+void MapView::resizeEvent(QResizeEvent *event)
{
- QTransform currentTransform = transform();
- return currentTransform.m11();
+ qDebug() << __PRETTY_FUNCTION__ << "Resize:" << event->size();
+
+ emit viewResized(event->size());
}
-void MapView::scrollContentsBy (int dx, int dy)
+void MapView::setViewScale(qreal viewScale)
{
-// qDebug() << __PRETTY_FUNCTION__;
-
- QGraphicsView::scrollContentsBy(dx, dy);
+ qDebug() << __PRETTY_FUNCTION__;
- QPoint centerInScene = mapToScene(frameRect().center()).toPoint();
-// qDebug() << __PRETTY_FUNCTION__ << "centerInScene:" << centerInScene;
- emit viewScrolled(centerInScene);
+ QTransform transform;
+ transform.scale(viewScale, viewScale);
+ setTransform(transform);
}
-void MapView::centerToSceneCoordinates(QPoint sceneCoordinate)
+void MapView::setZoomLevel(int zoomLevel)
{
-// qDebug() << __PRETTY_FUNCTION__ << "sceneCoordinate" << sceneCoordinate;
- centerOn(sceneCoordinate);
+ qDebug() << __PRETTY_FUNCTION__;
+
+ m_zoomLevel = zoomLevel;
+
+ if (m_zoomAnimation) {
+ m_zoomAnimation->stop();
+ m_zoomAnimation->setDuration(ZOOM_TIME);
+ m_zoomAnimation->setStartValue(viewScale());
+ m_zoomAnimation->setEndValue(pow(2, zoomLevel - MAX_MAP_ZOOM_LEVEL));
+
+ m_zoomAnimation->start();
+ }
}
-void MapView::resizeEvent(QResizeEvent *event)
+qreal MapView::viewScale()
{
- qDebug() << "Resize event: " << event->size();
- emit viewResized(event->size());
+ qDebug() << __PRETTY_FUNCTION__;
+
+ return transform().m11();
}
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