[Qt] Expose center and zoom properties

1 files changed, 48 insertions, 1 deletions

diff --git a/platform/qt/include/qquickmapboxgl.hpp b/platform/qt/include/qquickmapboxgl.hpp
index 8dfec6b369..6d24ca6732 100644
--- a/platform/qt/include/qquickmapboxgl.hpp
+++ b/platform/qt/include/qquickmapboxgl.hpp
@@ -1,6 +1,8 @@
 #ifndef QQUICKMAPBOXGL_H
 #define QQUICKMAPBOXGL_H
 
+#include <QGeoCoordinate>
+#include <QGeoShape>
 #include <QQuickFramebufferObject>
 
 class QQuickItem;
@@ -9,12 +11,57 @@ class Q_DECL_EXPORT QQuickMapboxGL : public QQuickFramebufferObject
 {
     Q_OBJECT
 
+    Q_PROPERTY(qreal minimumZoomLevel READ minimumZoomLevel WRITE setMinimumZoomLevel NOTIFY minimumZoomLevelChanged)
+    Q_PROPERTY(qreal maximumZoomLevel READ maximumZoomLevel WRITE setMaximumZoomLevel NOTIFY maximumZoomLevelChanged)
+    Q_PROPERTY(qreal zoomLevel READ zoomLevel WRITE setZoomLevel NOTIFY zoomLevelChanged)
+    Q_PROPERTY(QGeoCoordinate center READ center WRITE setCenter NOTIFY centerChanged)
+    Q_PROPERTY(QGeoShape visibleRegion READ visibleRegion WRITE setVisibleRegion)
+
 public:
     QQuickMapboxGL(QQuickItem *parent = 0);
     virtual ~QQuickMapboxGL();
 
-    // Called from render thread.
+    // QQuickFramebufferObject implementation.
     virtual Renderer *createRenderer() const Q_DECL_FINAL;
+
+    void setMinimumZoomLevel(qreal minimumZoomLevel);
+    qreal minimumZoomLevel() const;
+
+    void setMaximumZoomLevel(qreal maximumZoomLevel);
+    qreal maximumZoomLevel() const;
+
+    void setZoomLevel(qreal zoomLevel);
+    qreal zoomLevel() const;
+
+    void setCenter(const QGeoCoordinate &center);
+    QGeoCoordinate center() const;
+
+    void setVisibleRegion(const QGeoShape &shape);
+    QGeoShape visibleRegion() const;
+
+    enum SyncState {
+        NothingNeedsSync = 0x00,
+        ZoomNeedsSync    = 0x01,
+        CenterNeedsSync  = 0x02,
+    };
+
+    int swapSyncState();
+
+signals:
+    void minimumZoomLevelChanged();
+    void maximumZoomLevelChanged();
+    void zoomLevelChanged(qreal zoomLevel);
+    void centerChanged(const QGeoCoordinate &coordinate);
+
+private:
+    qreal m_minimumZoomLevel = 0;
+    qreal m_maximumZoomLevel = 20;
+    qreal m_zoomLevel = 20;
+
+    QGeoCoordinate m_center;
+    QGeoShape m_visibleRegion;
+
+    int m_syncState = NothingNeedsSync;
 };
 
 #endif // QQUICKMAPBOXGL_H