173 lines
4.5 KiB
C++
173 lines
4.5 KiB
C++
/**
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******************************************************************************
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*
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* @file MeasureLine.cpp
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
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* @brief A graphicsItem representing a line connecting 2 waypoints
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* @see The GNU Public License (GPL) Version 3
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* @defgroup OPMapWidget
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* @{
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "measureline.h"
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#include <math.h>
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#include "homeitem.h"
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namespace mapcontrol {
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MeasureLine::MeasureLine(internals::PointLatLng from, internals::PointLatLng to, MapGraphicItem *map, QColor color, bool dashed, int width) : QGraphicsLineItem(map),
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source(from), destination(to), my_map(map), myColor(color), dashed(dashed), lineWidth(width)
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{
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this->setLine(map->FromLatLngToLocal(from).X(), map->FromLatLngToLocal(from).Y(), map->FromLatLngToLocal(to).X(), map->FromLatLngToLocal(to).Y());
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connect(map, SIGNAL(childRefreshPosition()), this, SLOT(refreshLocations()));
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connect(map, SIGNAL(childRefreshPosition()), this, SLOT(refreshLocations()));
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//connect(from, SIGNAL(aboutToBeDeleted(WayPointItem *)), this, SLOT(waypointdeleted()));
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//connect(to, SIGNAL(aboutToBeDeleted(WayPointItem *)), this, SLOT(waypointdeleted()));
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this->setZValue(7);
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connect(map, SIGNAL(childSetOpacity(qreal)), this, SLOT(setOpacitySlot(qreal)));
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isEdit = true;
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}
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int MeasureLine::type() const
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{
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// Enable the use of qgraphicsitem_cast with this item.
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return Type;
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}
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QPainterPath MeasureLine::shape() const
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{
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QPainterPath path = QGraphicsLineItem::shape();
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path.addPolygon(arrowHead);
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return path;
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}
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void MeasureLine::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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Q_UNUSED(option);
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Q_UNUSED(widget);
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QPen myPen = pen();
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if(isEdit == false)
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{
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myPen.setColor(myColor);
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}
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else
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{
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myPen.setColor("#FF00FF");
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}
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painter->setPen(myPen);
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if (dashed) {
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QVector<qreal> dashes;
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dashes << 4 << 8;
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myPen.setDashPattern(dashes);
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}
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if (lineWidth == -1) {
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if (myColor == Qt::red) {
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myPen.setWidth(3);
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} else if (myColor == Qt::yellow) {
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myPen.setWidth(2);
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} else if (myColor == Qt::green) {
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myPen.setWidth(1);
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}
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} else {
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myPen.setWidth(lineWidth);
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}
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painter->setPen(myPen);
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painter->drawLine(line());
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QFont font;
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font.setPixelSize(15);//不随着屏幕分辨率改变而改变
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font.setFamily("黑体");//非衬线
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painter->setFont(font);
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painter->drawText(line().p2().x(),line().p2().y() - 5,QString("%1km %2°").arg(QString::number(distance * 0.001,'f',3)).arg(QString::number(bearing * 57.3,'f',1)));
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}
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void MeasureLine::setEdit(bool value)
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{
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isEdit = value;
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}
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void MeasureLine::refreshLocations()
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{
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this->setLine(my_map->FromLatLngToLocal(source).X(), my_map->FromLatLngToLocal(source).Y(), my_map->FromLatLngToLocal(destination).X(), my_map->FromLatLngToLocal(destination).Y());
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update();
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}
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void MeasureLine::waypointdeleted()
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{
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this->deleteLater();
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}
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void MeasureLine::WPLinedelete(WayPointItem *from, WayPointItem *to)
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{
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Q_UNUSED(from)
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Q_UNUSED(to)
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this->deleteLater();
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}
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void MeasureLine::setOpacitySlot(qreal opacity)
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{
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setOpacity(opacity);
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}
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void MeasureLine::setFrom(internals::PointLatLng p)
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{
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source.SetLat(p.Lat());
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source.SetLng(p.Lng());
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my_map->Projection()->offSetFromLatLngs(source,destination,distance,bearing);
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refreshLocations();
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update();
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}
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void MeasureLine::setTo(internals::PointLatLng p)
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{
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destination.SetLat(p.Lat());
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destination.SetLng(p.Lng());
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my_map->Projection()->offSetFromLatLngs(source,destination,distance,bearing);
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refreshLocations();
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update();
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}
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}
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