peri4
dd4695780d
MapView::setTileObsoleteTime() method. You can set maximum lifetime for tile, after that it will be redownloaded
123 lines
3.4 KiB
C++
123 lines
3.4 KiB
C++
/*
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QAD - Qt ADvanced
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Ivan Pelipenko peri4ko@yandex.ru
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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 Lesser 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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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef mapview_h
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#define mapview_h
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#include "mapitembase.h"
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#include "qad_map_export.h"
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#include <QGeoCoordinate>
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#include <QImage>
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#include <QWidget>
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class OSMDownloader;
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class OSMTileCache;
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class QAD_MAP_EXPORT MapView: public QWidget {
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Q_OBJECT
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Q_PROPERTY(QPointF center READ center WRITE setCenter)
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Q_PROPERTY(double zoom READ getZoom WRITE setZoom)
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friend class OSMDownloader;
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friend class OSMTileCache;
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friend class MapItemBase;
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public:
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explicit MapView(QWidget * parent = 0);
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~MapView();
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void addItem(MapItemBase * item);
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void removeItem(MapItemBase * item);
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QPointF center() const;
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void setCenter(QPointF c);
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void setCenter(QGeoCoordinate c) { setCenter(QPointF(c.latitude(), c.longitude())); }
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int getCurrentZoomLevel() const { return zoom_level; }
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int getMaximumZoomLevel() const { return max_level; }
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double getZoom() const { return zoom_; }
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void setZoom(double z);
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QPointF clickedCoordinate() const { return last_click_coord; }
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QString cachePath() const;
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void setCachePath(const QString & p);
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void setTileObsoleteTime(int secs);
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void downloadCurrentView(int target_zoom_level = 17, bool only_new = true);
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protected:
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QSize sizeHint() const override { return QSize(200, 200); }
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void mousePressEvent(QMouseEvent * e) override;
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void mouseReleaseEvent(QMouseEvent * e) override;
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void mouseDoubleClickEvent(QMouseEvent * e) override;
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void mouseMoveEvent(QMouseEvent * e) override;
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void wheelEvent(QWheelEvent * e) override;
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void paintEvent(QPaintEvent *) override;
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void resizeEvent(QResizeEvent *) override;
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private:
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void drawBackground();
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void drawItems(QPainter & p);
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void checkZoom();
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void checkCenter();
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void zoomLevelChanged(int new_level);
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void updateZoomLevel();
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void updateViewRect();
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void updateMouse(QPoint mouse);
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double scalePx2M(QPointF norm);
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QPointF mapToNorm(QPoint screen) const;
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QPoint mapFromNorm(QPointF norm) const;
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OSMDownloader * downloader = nullptr;
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OSMTileCache * cache = nullptr;
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MapItemBase * hover = nullptr;
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QPointF center_ = QPointF(0.5, 0.5);
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QPointF last_click_coord = center_;
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QPoint press_point, zoom_anchor;
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QPixmap background;
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QRectF view_rect;
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QVector<MapItemBase *> items_;
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QBrush brush_tr;
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bool is_pan = false, is_downloading = false;
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double zoom_ = 1., scale_ = 1., px2m = 1.;
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int zoom_level = 0, tiles_side = 1, max_level = 19;
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public slots:
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void zoom(double factor);
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void zoom(double factor, QPoint anchor);
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void zoomTo(double level);
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void centerTo(QPointF coord);
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private slots:
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signals:
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void mapClicked(QPointF);
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void itemClicked(MapItemBase * item);
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void itemEntered(MapItemBase * item);
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void itemLeaved(MapItemBase * item);
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};
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#endif
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