/*
*
* This file is part of QMapControl,
* an open-source cross-platform map widget
*
* Copyright (C) 2007 - 2008 Kai Winter
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with QMapControl. If not, see .
*
* Contact e-mail: kaiwinter@gmx.de
* Program URL : http://qmapcontrol.sourceforge.net/
*
*/
#include "mapcontrol.h"
namespace qmapcontrol
{
MapControl::MapControl(QSize size, MouseMode mousemode)
: size(size), mymousemode(mousemode), scaleVisible(false)
{
layermanager = new LayerManager(this, size);
screen_middle = QPoint(size.width()/2, size.height()/2);
mousepressed = false;
connect(ImageManager::instance(), SIGNAL(imageReceived()),
this, SLOT(updateRequestNew()));
connect(ImageManager::instance(), SIGNAL(loadingFinished()),
this, SLOT(loadingFinished()));
this->setMaximumSize(size.width()+1, size.height()+1);
}
MapControl::~MapControl()
{
delete layermanager;
}
QPointF MapControl::currentCoordinate() const
{
return layermanager->currentCoordinate();
}
Layer* MapControl::layer(const QString& layername) const
{
return layermanager->layer(layername);
}
QList MapControl::layers() const
{
return layermanager->layers();
}
int MapControl::numberOfLayers() const
{
return layermanager->layers().size();
}
void MapControl::followGeometry(const Geometry* geom) const
{
connect(geom, SIGNAL(positionChanged(Geometry*)),
this, SLOT(positionChanged(Geometry*)));
}
void MapControl::positionChanged(Geometry* geom)
{
QPoint start = layermanager->layer()->mapadapter()->coordinateToDisplay(currentCoordinate());
QPoint dest = layermanager->layer()->mapadapter()->coordinateToDisplay(((Point*)geom)->coordinate());
QPoint step = (dest-start);
layermanager->scrollView(step);
// setView(geom);
update();
}
void MapControl::moveTo(QPointF coordinate)
{
target = coordinate;
steps = 25;
if (moveMutex.tryLock())
{
QTimer::singleShot(40, this, SLOT(tick()));
}
else
{
// stopMove(coordinate);
}
}
void MapControl::tick()
{
QPoint start = layermanager->layer()->mapadapter()->coordinateToDisplay(currentCoordinate());
QPoint dest = layermanager->layer()->mapadapter()->coordinateToDisplay(target);
QPoint step = (dest-start)/steps;
QPointF next = currentCoordinate()- step;
// setView(Coordinate(next.x(), next.y()));
layermanager->scrollView(step);
update();
steps--;
if (steps>0)
{
QTimer::singleShot(40, this, SLOT(tick()));
}
else
{
moveMutex.unlock();
}
}
void MapControl::paintEvent(QPaintEvent* evnt)
{
QWidget::paintEvent(evnt);
QPainter painter(this);
// painter.translate(150,190);
// painter.scale(0.5,0.5);
// painter.setClipRect(0,0, size.width(), size.height());
// painter.setViewport(10000000000,0,size.width(),size.height());
/*
// rotating
rotation = 45;
painter.translate(256,256);
painter.rotate(rotation);
painter.translate(-256,-256);
*/
layermanager->drawImage(&painter);
layermanager->drawGeoms(&painter);
// added by wolf
// draw scale
if (scaleVisible)
{
QList distanceList;
distanceList<<5000000<<2000000<<1000000<<1000000<<1000000<<100000<<100000<<50000<<50000<<10000<<10000<<10000<<1000<<1000<<500<<200<<100<<50<<25;
if (currentZoom() >= 0 && distanceList.size() > currentZoom())
{
double line;
line = distanceList.at( currentZoom() ) / pow(2, 18-currentZoom() ) / 0.597164;
// draw the scale
painter.setPen(Qt::black);
QPoint p1(10,size.height()-20);
QPoint p2((int)line,size.height()-20);
painter.drawLine(p1,p2);
painter.drawLine(10,size.height()-15, 10,size.height()-25);
painter.drawLine((int)line,size.height()-15, (int)line,size.height()-25);
QString distance;
if (distanceList.at(currentZoom()) >= 1000)
{
distance = QVariant( distanceList.at(currentZoom())/1000 ) .toString()+ " km";
}
else
{
distance = QVariant( distanceList.at(currentZoom()) ).toString() + " m";
}
painter.drawText(QPoint((int)line+10,size.height()-15), distance);
}
}
painter.drawLine(screen_middle.x(), screen_middle.y()-10,
screen_middle.x(), screen_middle.y()+10); // |
painter.drawLine(screen_middle.x()-10, screen_middle.y(),
screen_middle.x()+10, screen_middle.y()); // -
// int cross_x = int(layermanager->getMapmiddle_px().x())%256;
// int cross_y = int(layermanager->getMapmiddle_px().y())%256;
// painter.drawLine(screen_middle.x()-cross_x+cross_x, screen_middle.y()-cross_y+0,
// screen_middle.x()-cross_x+cross_x, screen_middle.y()-cross_y+256); // |
// painter.drawLine(screen_middle.x()-cross_x+0, screen_middle.y()-cross_y+cross_y,
// screen_middle.x()-cross_x+256, screen_middle.y()-cross_y+cross_y); // -
painter.drawRect(0,0, size.width(), size.height());
/*
// rotating
painter.setMatrix(painter.matrix().inverted());
//qt = painter.transform();
qm = painter.combinedMatrix();
*/
if (mousepressed && mymousemode == Dragging)
{
QRect rect = QRect(pre_click_px, current_mouse_pos);
painter.drawRect(rect);
}
emit viewChanged(currentCoordinate(), currentZoom());
}
// mouse events
void MapControl::mousePressEvent(QMouseEvent* evnt)
{
//rotating (experimental)
// QMouseEvent* me = new QMouseEvent(evnt->type(), qm.map(QPoint(evnt->x(),evnt->y())), evnt->button(), evnt->buttons(), evnt->modifiers());
// evnt = me;
// qDebug() << "evnt: " << evnt->x() << ", " << evnt->y() << ", " << evnt->pos();
layermanager->mouseEvent(evnt);
if (layermanager->layers().size()>0)
{
if (evnt->button() == 1)
{
mousepressed = true;
pre_click_px = QPoint(evnt->x(), evnt->y());
}
else if (evnt->button() == 2 && mymousemode != None) // zoom in
{
zoomIn();
} else if (evnt->button() == 4 && mymousemode != None) // zoom out
{
zoomOut();
}
}
// emit(mouseEvent(evnt));
emit(mouseEventCoordinate(evnt, clickToWorldCoordinate(evnt->pos())));
}
void MapControl::mouseReleaseEvent(QMouseEvent* evnt)
{
mousepressed = false;
if (mymousemode == Dragging)
{
QPointF ulCoord = clickToWorldCoordinate(pre_click_px);
QPointF lrCoord = clickToWorldCoordinate(current_mouse_pos);
QRectF coordinateBB = QRectF(ulCoord, QSizeF( (lrCoord-ulCoord).x(), (lrCoord-ulCoord).y()));
emit(boxDragged(coordinateBB));
}
emit(mouseEventCoordinate(evnt, clickToWorldCoordinate(evnt->pos())));
}
void MapControl::mouseMoveEvent(QMouseEvent* evnt)
{
// emit(mouseEvent(evnt));
/*
// rotating
QMouseEvent* me = new QMouseEvent(evnt->type(), qm.map(QPoint(evnt->x(),evnt->y())), evnt->button(), evnt->buttons(), evnt->modifiers());
evnt = me;
*/
if (mousepressed && mymousemode == Panning)
{
QPoint offset = pre_click_px - QPoint(evnt->x(), evnt->y());
layermanager->scrollView(offset);
pre_click_px = QPoint(evnt->x(), evnt->y());
}
else if (mousepressed && mymousemode == Dragging)
{
current_mouse_pos = QPoint(evnt->x(), evnt->y());
}
// emit(mouseEventCoordinate(evnt, clickToWorldCoordinate(evnt->pos())));
update();
// emit(mouseEventCoordinate(evnt, clickToWorldCoordinate(evnt->pos())));
}
QPointF MapControl::clickToWorldCoordinate(QPoint click)
{
// click coordinate to image coordinate
QPoint displayToImage= QPoint(click.x()-screen_middle.x()+layermanager->getMapmiddle_px().x(),
click.y()-screen_middle.y()+layermanager->getMapmiddle_px().y());
// image coordinate to world coordinate
return layermanager->layer()->mapadapter()->displayToCoordinate(displayToImage);
}
void MapControl::updateRequest(QRect rect)
{
update(rect);
}
void MapControl::updateRequestNew()
{
// qDebug() << "MapControl::updateRequestNew()";
layermanager->forceRedraw();
update();
}
// slots
void MapControl::zoomIn()
{
layermanager->zoomIn();
update();
}
void MapControl::zoomOut()
{
layermanager->zoomOut();
update();
}
void MapControl::setZoom(int zoomlevel)
{
layermanager->setZoom(zoomlevel);
update();
}
int MapControl::currentZoom() const
{
return layermanager->currentZoom();
}
void MapControl::scrollLeft(int pixel)
{
layermanager->scrollView(QPoint(-pixel,0));
update();
}
void MapControl::scrollRight(int pixel)
{
layermanager->scrollView(QPoint(pixel,0));
update();
}
void MapControl::scrollUp(int pixel)
{
layermanager->scrollView(QPoint(0,-pixel));
update();
}
void MapControl::scrollDown(int pixel)
{
layermanager->scrollView(QPoint(0,pixel));
update();
}
void MapControl::scroll(const QPoint scroll)
{
layermanager->scrollView(scroll);
update();
}
void MapControl::setView(const QPointF& coordinate) const
{
layermanager->setView(coordinate);
}
void MapControl::setView(const QList coordinates) const
{
layermanager->setView(coordinates);
}
void MapControl::setViewAndZoomIn(const QList coordinates) const
{
layermanager->setViewAndZoomIn(coordinates);
}
void MapControl::setView(const Point* point) const
{
layermanager->setView(point->coordinate());
}
void MapControl::loadingFinished()
{
// qDebug() << "MapControl::loadingFinished()";
layermanager->removeZoomImage();
}
void MapControl::addLayer(Layer* layer)
{
layermanager->addLayer(layer);
}
void MapControl::setMouseMode(MouseMode mousemode)
{
mymousemode = mousemode;
}
MapControl::MouseMode MapControl::mouseMode()
{
return mymousemode;
}
void MapControl::stopFollowing(Geometry* geom)
{
geom->disconnect(SIGNAL(positionChanged(Geometry*)));
}
void MapControl::enablePersistentCache(const QDir& path)
{
ImageManager::instance()->setCacheDir(path);
}
void MapControl::setProxy(QString host, int port)
{
ImageManager::instance()->setProxy(host, port);
}
void MapControl::showScale(bool show)
{
scaleVisible = show;
}
void MapControl::resize(const QSize newSize)
{
this->size = newSize;
screen_middle = QPoint(newSize.width()/2, newSize.height()/2);
this->setMaximumSize(newSize.width()+1, newSize.height()+1);
layermanager->resize(newSize);
}
}