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| /* |
| * |
| * 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 <http://www.gnu.org/licenses/>. |
| * |
| * 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<QString> 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<double> 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<QPointF> coordinates) const |
| { |
| layermanager->setView(coordinates); |
| } |
| |
| void MapControl::setViewAndZoomIn(const QList<QPointF> 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); |
| } |
| } |