mirror of
https://github.com/tumic0/GPXSee.git
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172 lines
3.1 KiB
C++
172 lines
3.1 KiB
C++
#include <cmath>
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#include <QApplication>
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#include <QCursor>
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#include <QPainter>
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#include <QGraphicsSceneMouseEvent>
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#include "map/map.h"
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#include "popup.h"
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#include "tooltip.h"
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#include "areaitem.h"
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QString AreaItem::info() const
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{
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ToolTip tt;
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if (!_area.name().isEmpty())
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tt.insert(qApp->translate("PolygonItem", "Name"), _area.name());
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if (!_area.description().isEmpty())
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tt.insert(qApp->translate("PolygonItem", "Description"),
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_area.description());
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return tt.toString();
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}
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AreaItem::AreaItem(const Area &area, Map *map, GraphicsItem *parent)
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: PlaneItem(parent), _area(area)
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{
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_map = map;
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_digitalZoom = 0;
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_width = 2;
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_opacity = 0.5;
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QBrush brush(Qt::SolidPattern);
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_pen = QPen(brush, _width);
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updatePainterPath();
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setCursor(Qt::ArrowCursor);
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setAcceptHoverEvents(true);
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}
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QPainterPath AreaItem::painterPath(const Polygon &polygon)
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{
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QPainterPath path;
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const QVector<Coordinates> &lr = polygon.first();
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path.moveTo(_map->ll2xy(lr.first()));
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for (int i = 1; i < lr.size(); i++)
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path.lineTo(_map->ll2xy(lr.at(i)));
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path.closeSubpath();
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for (int i = 1; i < polygon.size(); i++) {
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const QVector<Coordinates> &lr = polygon.at(i);
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QPainterPath hole;
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hole.moveTo(_map->ll2xy(lr.first()));
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for (int j = 1; j < lr.size(); j++)
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hole.lineTo(_map->ll2xy(lr.at(j)));
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hole.closeSubpath();
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path = path.subtracted(hole);
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}
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return path;
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}
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void AreaItem::updatePainterPath()
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{
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_painterPath = QPainterPath();
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for (int i = 0; i < _area.size(); i++)
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_painterPath.addPath(painterPath(_area.at(i)));
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}
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void AreaItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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QWidget *widget)
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{
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Q_UNUSED(option);
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Q_UNUSED(widget);
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painter->setPen(_width ? _pen : QPen(Qt::NoPen));
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painter->drawPath(_painterPath);
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painter->fillPath(_painterPath, _brush);
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/*
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QPen p = QPen(QBrush(Qt::red), 0);
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painter->setPen(p);
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painter->drawRect(boundingRect());
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*/
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}
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void AreaItem::setMap(Map *map)
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{
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prepareGeometryChange();
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_map = map;
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updatePainterPath();
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}
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void AreaItem::setColor(const QColor &color)
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{
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if (_pen.color() == color)
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return;
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QColor bc(color);
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bc.setAlphaF(_opacity * color.alphaF());
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_pen.setColor(color);
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_brush = QBrush(bc);
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update();
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}
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void AreaItem::setOpacity(qreal opacity)
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{
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if (_opacity == opacity)
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return;
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_opacity = opacity;
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QColor bc(_pen.color());
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bc.setAlphaF(_opacity * _pen.color().alphaF());
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_brush = QBrush(bc);
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update();
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}
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void AreaItem::setWidth(qreal width)
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{
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if (_width == width)
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return;
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prepareGeometryChange();
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_width = width;
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_pen.setWidthF(_width * pow(2, -_digitalZoom));
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}
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void AreaItem::setStyle(Qt::PenStyle style)
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{
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if (_pen.style() == style)
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return;
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_pen.setStyle(style);
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update();
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}
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void AreaItem::setDigitalZoom(int zoom)
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{
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if (_digitalZoom == zoom)
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return;
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prepareGeometryChange();
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_digitalZoom = zoom;
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_pen.setWidthF(_width * pow(2, -_digitalZoom));
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}
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void AreaItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
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{
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Q_UNUSED(event);
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_pen.setWidthF((_width + 1) * pow(2, -_digitalZoom));
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update();
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}
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void AreaItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
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{
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Q_UNUSED(event);
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_pen.setWidthF(_width * pow(2, -_digitalZoom));
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update();
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}
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