/
cartewidget.cpp
132 lines (115 loc) · 3.95 KB
/
cartewidget.cpp
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/*
* cartewidget.cpp
* Copyright (C) 2011 Nicolas Martin, Université de Montréal
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "cartescene.h"
#include "cartewidget.h"
#include "ui_cartewidget.h"
#include <QtGui>
#include <cmath>
CarteScene* CarteWidget::gscene;
CarteWidget::CarteWidget(QWidget *parent) :
QWidget(parent),
ui(new Ui::CarteWidget)
{
ui->setupUi(this);
setAutoFillBackground(true);
setFocusPolicy(Qt::StrongFocus);
if (!gscene) {
qDebug() << trUtf8("CarteWidget::setScene() n'a pas été appelé ou n'a pas bien fonctionné! Vous devez appeler CarteScene::readSceneFile(<chemin du fichier.osm>) puis CarteWidget::setScene() avant d'utiliser CarteWidget");
}
connect(ui->toolButton, SIGNAL(clicked()), this, SLOT(zoomin()));
connect(ui->toolButton_2, SIGNAL(clicked()), this, SLOT(zoomout()));
connect(ui->toolButton_3, SIGNAL(clicked()), this, SLOT(center()));
connect(ui->comboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(setScale(int)));
ui->graphicsView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
ui->graphicsView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
ui->graphicsView->setRenderHints(QPainter::Antialiasing|QPainter::TextAntialiasing);
ui->graphicsView->setViewportUpdateMode(QGraphicsView::SmartViewportUpdate);
ui->graphicsView->setDragMode(QGraphicsView::ScrollHandDrag);
ui->graphicsView->setScene(gscene);
ui->graphicsView->viewport()->installEventFilter(this);
flag = new QGraphicsEllipseItem;
flag->setRect(0,0,60,60);
flag->setPen(QPen(Qt::red));
flag->setVisible(false);
gscene->addItem(flag);
}
bool CarteWidget::eventFilter(QObject *, QEvent *ev)
{
if (ev->type() == QEvent::MouseButtonDblClick) {
QMouseEvent *mev = static_cast<QMouseEvent*>(ev);
QPointF pos = ui->graphicsView->mapToScene(mev->pos());
flag->setPos(pos);
flag->setVisible(true);
_flagPos = CarteScene::PointToGPS(pos);
//pour etre propre on devrait emettre le signal mais bon ...
emit editFinished();
}
return false;
}
CarteWidget::~CarteWidget()
{
delete ui;
if (flag) delete flag;
}
void CarteWidget::setScale(int v)
{
qreal scale = ui->graphicsView->transform().m11();
switch (v)
{
case 0:
gscene->setScale(0.5);
ui->graphicsView->scale(defscale/(2*scale),defscale/(2*scale));
break;
case 1:
gscene->setScale(1.);
ui->graphicsView->fitInView(gscene->bounds(),Qt::KeepAspectRatio);
break;
case 2:
gscene->setScale(2.);
ui->graphicsView->scale(defscale/(0.5*scale),defscale/(0.5*scale));
break;
case 3:
gscene->setScale(4.);
ui->graphicsView->scale(defscale/(0.25*scale),defscale/(0.25*scale));
break;
case 4:
gscene->setScale(8.);
ui->graphicsView->scale(defscale/(0.125*scale),defscale/(0.125*scale));
break;
}
}
void CarteWidget::zoomin()
{
gscene->scale(1.25);
ui->graphicsView->scale(1.25,1.25);
}
void CarteWidget::zoomout()
{
gscene->scale(0.8);
ui->graphicsView->scale(0.8,0.8);
}
void CarteWidget::center()
{
gscene->setScale(1.);
ui->graphicsView->fitInView(gscene->bounds(),Qt::KeepAspectRatio);
defscale = ui->graphicsView->transform().m11();
}
void CarteWidget::showEvent(QShowEvent *)
{
center();
}