Zoom in and scroll subway map

1 files changed, 15 insertions, 0 deletions

@@ -29,12 +29,19 @@ class SubwayMap : public wxPanel {
  private:
   void OnPaint(wxPaintEvent &event);
   void OnMouseMove(wxMouseEvent &event);
+  void OnMouseScroll(wxMouseEvent &event);
+  void OnMouseLeave(wxMouseEvent &event);
+  void OnTimer(wxTimerEvent &event);
 
   void Redraw();
 
   wxPoint MapPosToRenderPos(wxPoint pos) const;
+  wxPoint MapPosToVirtualPos(wxPoint pos) const;
   wxPoint RenderPosToMapPos(wxPoint pos) const;
 
+  void SetZoomPos(wxPoint pos);
+  void SetScrollSpeed(int scroll_x, int scroll_y);
+
   wxImage map_image_;
   wxImage owl_image_;
   wxBitmap unchecked_eye_;
@@ -46,6 +53,14 @@ class SubwayMap : public wxPanel {
   int render_width_ = 0;
   int render_height_ = 0;
 
+  double zoom_ = 1.0;
+  int zoom_x_ = 0; // in render space
+  int zoom_y_ = 0;
+
+  wxTimer* scroll_timer_;
+  int scroll_x_ = 0;
+  int scroll_y_ = 0;
+
   struct GetItemBox {
     quadtree::Box<float> operator()(const int &id) const;
   };