Initial commit: add Location Plotter

src/MapWidget.h

@@ -0,0 +1,90 @@
+#pragma once
+
+#include "TelemetryPoint.h"
+
+#include <QHash>
+#include <QPixmap>
+#include <QPoint>
+#include <QSet>
+#include <QWidget>
+
+#include <optional>
+
+class QNetworkAccessManager;
+class QLabel;
+
+class MapWidget : public QWidget {
+    Q_OBJECT
+
+public:
+    explicit MapWidget(QWidget *parent = nullptr);
+
+    void setPoints(const QVector<TelemetryPoint> &points);
+    void clearPoints();
+    void setAverageMarker(double latitude, double longitude, double radiusMeters);
+    void clearAverageMarker();
+    void setCepMarker(double latitude, double longitude,
+                      const std::optional<double> &radiusMeters);
+    void clearCepMarker();
+
+public slots:
+    void setAutoFollow(bool enabled);
+    void setTelemetryOverlayEnabled(bool enabled);
+    void setAverageOverlayEnabled(bool enabled);
+    void setRecentPointsEnabled(bool enabled);
+    void zoomIn();
+    void zoomOut();
+
+signals:
+    void autoFollowChanged(bool enabled);
+    void referenceLocationSelected(double latitude, double longitude);
+
+protected:
+    void paintEvent(QPaintEvent *event) override;
+    void wheelEvent(QWheelEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
+
+private:
+    QPointF coordinateToWorld(double latitude, double longitude, int zoom) const;
+    QPointF worldToCoordinate(const QPointF &world, int zoom) const;
+    QPointF coordinateToScreen(double latitude, double longitude) const;
+    QPointF screenToCoordinate(const QPointF &screen) const;
+    QPointF topLeftWorld() const;
+
+    void drawTiles(QPainter &painter);
+    void drawTelemetry(QPainter &painter);
+    void drawAverageOverlay(QPainter &painter);
+    void drawCepOverlay(QPainter &painter);
+    void drawCepMarker(QPainter &painter);
+    void drawEmptyState(QPainter &painter);
+    void requestTile(int tileX, int tileY, int zoom);
+    void setZoomKeepingPoint(int newZoom, const QPointF &screenAnchor);
+    void disableAutoFollowFromUserAction();
+
+    QVector<TelemetryPoint> m_points;
+    QNetworkAccessManager *m_network = nullptr;
+    QLabel *m_attributionLabel = nullptr;
+    QHash<QString, QPixmap> m_tileCache;
+    QSet<QString> m_pendingTiles;
+
+    double m_centerLat = 39.0;
+    double m_centerLon = 35.0;
+    int m_zoom = 6;
+    bool m_autoFollow = true;
+    bool m_showTelemetryOverlay = true;
+    bool m_showAverageOverlay = true;
+    bool m_showRecentPoints = true;
+    bool m_hasAverageMarker = false;
+    double m_averageLat = 0.0;
+    double m_averageLon = 0.0;
+    double m_averageRadiusMeters = 0.0;
+    bool m_hasCepMarker = false;
+    double m_cepLatitude = 0.0;
+    double m_cepLongitude = 0.0;
+    std::optional<double> m_cepRadiusMeters;
+    bool m_dragging = false;
+    QPoint m_lastMousePos;
+};