- /*
- Situare - A location system for Facebook
- Copyright (C) 2010 Ixonos Plc. Authors:
+/*
+ Situare - A location system for Facebook
+ Copyright (C) 2010 Ixonos Plc. Authors:
- Sami Rämö - sami.ramo@ixonos.com
+ 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
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
+ Situare is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ version 2 as published by the Free Software Foundation.
- Situare is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+ Situare is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with Situare; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
- USA.
- */
+ You should have received a copy of the GNU General Public License
+ along with Situare; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ USA.
+*/
-#include <math.h>
+#include <cmath>
#include <QDebug>
#include <QMouseEvent>
+#include "mapcommon.h"
+#include "mapscroller.h"
#include "mapview.h"
-#include "mapengine.h"
-MapView::MapView(QWidget *parent) : QGraphicsView(parent)
+const int KINETIC_SCROLL_TIME_MS = 1000;
+
+MapView::MapView(QWidget *parent)
+ : QGraphicsView(parent)
{
+ 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)
{
- double scaleFactor = pow(2, zoomLevel - MapEngine::MAX_ZOOM_LEVEL);
- scale(scaleFactor, scaleFactor);
+ qDebug() << __PRETTY_FUNCTION__ << "sceneCoordinate" << sceneCoordinate;
+
+ centerOn(sceneCoordinate);
+}
+
+void MapView::mouseMoveEvent(QMouseEvent *event)
+{
+ 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++;
+
+// 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::mousePressEvent(QMouseEvent *event)
{
- qDebug() << __PRETTY_FUNCTION__ << "scene coordinate:" << mapToScene(event->pos());
+ qDebug() << __PRETTY_FUNCTION__;
+
+ time.start();
+
+ m_scroller->stop();
+
+ 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;
+ }
+ 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;
+
+// qWarning() << __PRETTY_FUNCTION__ << dragViewSpeed.x() << dragViewSpeed.y();
+
+ 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();
+}
+
+void MapView::resizeEvent(QResizeEvent *event)
+{
+ qDebug() << __PRETTY_FUNCTION__ << "Resize:" << event->size();
+
+ emit viewResized(event->size());
+}
+
+void MapView::setViewScale(qreal viewScale)
+{
+ qDebug() << __PRETTY_FUNCTION__;
+
+ QTransform transform;
+ transform.scale(viewScale, viewScale);
+ setTransform(transform);
+}
+
+void MapView::setZoomLevel(int zoomLevel)
+{
+ 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();
+ }
+}
+
+qreal MapView::viewScale()
+{
+ qDebug() << __PRETTY_FUNCTION__;
+
+ return transform().m11();
}
projects / situare / blobdiff