public override void Draw(BMapControl c, Graphics g)
{
if (IsVisible)
{
this.map = c;
ScreenPosition = map.LatLngToPoint(Position);
Point p = ScreenPosition.GetOffSet(OffSet.X, OffSet.Y);
var rect = ScreenArea = new Rectangle(p, Size);
if (IsMouseOver)
{
g.FillEllipse(new SolidBrush(Color.FromArgb(0xaa, 0xff, 0xff, 0xff)), rect);
//if (ToolTip!=null)
//{
// ToolTip.IsOpen=IsMouseOver;
//}
}
p.Offset(3, 3);
var rect1 = new Rectangle(p.X, p.Y, Size.Width - 6, Size.Height - 6);
g.FillEllipse(new SolidBrush(Color.FromArgb(0xFF, 0x11, 0x11, 0xff)), rect1);
ToolTip.Draw(c, g);
}
}
/// <summary>
/// 绘制
/// </summary>
/// <param name="g"></param>
/// <param name="center"></param>
/// <param name="zoom"></param>
/// <param name="screen_size"></param>
public override void Draw(System.Drawing.Graphics g, LatLngPoint center, int zoom, Size screen_size)
{
//偏移处理
//LatLngPoint offset = new LatLngPoint(MapHelper.OFFSET_LNG, MapHelper.OFFSET_LAT);
//PointF offset_p = MapHelper.GetLocationByLatLng(offset, zoom);
PointF center_p = MapHelper.GetLocationByLatLng(center, zoom); //中心点像素坐标
PointF toleft_p = new PointF(X * 256, (Y + 1) * 256); //瓦片左上角像素坐标
PointF p = new PointF((int)(screen_size.Width / 2 + (toleft_p.X - center_p.X)), (int)(screen_size.Height / 2 + (toleft_p.Y - center_p.Y) * (-1))); //屏幕坐标
//在绘制范围之内
if (!new Rectangle(-256, -256, screen_size.Width + 256, screen_size.Height + 256).Contains(new Point((int)p.X, (int)p.Y)))
{
return;
}
if (Mode == MapMode.Normal && _normal == null && !_loading) //开始下载普通瓦片
{
_loading = true;
if (!_load_error)
{
((Action)(delegate()
{
MapService ms = new MapService();
_normal = ms.LoadMapTile(X, Y, Zoom, Mode, LoadMode);
_loading = false;
if (_normal == null)
{
_load_error = true;
}
BMapControl.Invoke((Action) delegate()
{
BMapControl.Invalidate();
});
})).BeginInvoke(null, null);
}
}
if (Mode == MapMode.RoadNet && _road_net == null && !_loading) //开始下载道路网瓦片
{
_loading = true;
if (!_load_error)
{
((Action)(delegate()
{
MapService ms = new MapService();
_road_net = ms.LoadMapTile(X, Y, Zoom, Mode, LoadMode);
_loading = false;
if (_road_net == null)
{
_load_error = true;
}
BMapControl.Invoke((Action) delegate()
{
BMapControl.Invalidate();
});
})).BeginInvoke(null, null);
}
}
if (Mode == MapMode.Satellite && _sate == null && !_loading) //开始下载卫星图瓦片
{
_loading = true;
if (!_load_error)
{
((Action)(delegate()
{
MapService ms = new MapService();
_sate = ms.LoadMapTile(X, Y, Zoom, Mode, LoadMode);
_loading = false;
if (_sate == null)
{
_load_error = true;
}
BMapControl.Invoke((Action) delegate()
{
BMapControl.Invalidate();
});
})).BeginInvoke(null, null);
}
}
if (Mode == MapMode.Sate_RoadNet && _sate == null && !_loading) //开始下载卫星图瓦片
{
_loading = true;
if (!_load_error)
{
((Action)(delegate()
{
MapService ms = new MapService();
_sate = ms.LoadMapTile(X, Y, Zoom, MapMode.Satellite, LoadMode);
_loading = false;
if (_sate == null)
{
_load_error = true;
}
BMapControl.Invoke((Action) delegate()
{
BMapControl.Invalidate();
});
})).BeginInvoke(null, null);
}
}
if (Mode == MapMode.Sate_RoadNet && _road_net == null && !_loading) //开始下载道路网瓦片
{
_loading = true;
if (!_load_error)
{
((Action)(delegate()
{
MapService ms = new MapService();
_road_net = ms.LoadMapTile(X, Y, Zoom, MapMode.RoadNet, LoadMode);
_loading = false;
if (_road_net == null)
{
_load_error = true;
}
BMapControl.Invoke((Action) delegate()
{
BMapControl.Invalidate();
});
})).BeginInvoke(null, null);
}
}
string error = "正在加载图片...";
if (_load_error)
{
error = "图片加载失败...";
}
if (Mode == MapMode.Normal) //绘制普通地图
{
if (_normal == null)
{
g.FillRectangle(Brushes.LightGray, new RectangleF(p, new SizeF(256, 256)));
g.DrawRectangle(Pens.Gray, p.X, p.Y, 256, 256);
using (Font f = new Font("微软雅黑", 10))
{
g.DrawString(error, f, Brushes.Red, new PointF(p.X + 60, p.Y + 100));
}
}
else
{
g.DrawImage(_normal, new RectangleF(p, new SizeF(256, 256)));
}
}
if (Mode == MapMode.RoadNet) //绘制道路网
{
if (_road_net == null)
{
g.FillRectangle(Brushes.LightGray, new RectangleF(p, new SizeF(256, 256)));
g.DrawRectangle(Pens.Gray, p.X, p.Y, 256, 256);
using (Font f = new Font("微软雅黑", 10))
{
g.DrawString(error, f, Brushes.Red, new PointF(p.X + 60, p.Y + 100));
}
}
else
{
g.DrawImage(_road_net, new RectangleF(p, new SizeF(256, 256)));
}
}
if (Mode == MapMode.Satellite) //绘制卫星图
{
if (_sate == null)
{
g.FillRectangle(Brushes.LightGray, new RectangleF(p, new SizeF(256, 256)));
g.DrawRectangle(Pens.Gray, p.X, p.Y, 256, 256);
using (Font f = new Font("微软雅黑", 10))
{
g.DrawString(error, f, Brushes.Red, new PointF(p.X + 60, p.Y + 100));
}
}
else
{
g.DrawImage(_sate, new RectangleF(p, new SizeF(256, 256)));
}
}
if (Mode == MapMode.Sate_RoadNet) //绘制卫星图和道路网
{
if (_sate == null && _road_net == null)
{
g.FillRectangle(Brushes.LightGray, new RectangleF(p, new SizeF(256, 256)));
g.DrawRectangle(Pens.Gray, p.X, p.Y, 256, 256);
using (Font f = new Font("微软雅黑", 10))
{
g.DrawString(error, f, Brushes.Red, new PointF(p.X + 60, p.Y + 100));
}
}
else
{
//先绘制卫星图 再绘制道路网
if (_sate != null)
{
g.DrawImage(_sate, new RectangleF(p, new SizeF(256, 256)));
}
if (_road_net != null)
{
g.DrawImage(_road_net, new RectangleF(p, new SizeF(256, 256)));
}
}
}
}
public override void OnMouseClick(BMapControl c, MouseEventArgs e)
{
base.OnMouseClick(c, e);
//MessageBox.Show("test");
}
