/// <summary>
/// 广播消息
/// </summary>
/// <param name="msg">消息</param>
public void Broadcast(Object msg)
{
// 生成队列
foreach (Action <Msger> fun in this.observer)
{
this.schedule.Enqueue(new Motion <Msger>(
fun, new Msger(this, msg)
));
}
// 执行队列
if (this.complete)
{
try
{
while (!(this.complete = this.schedule.Count.Equals(0)))
{
// 多线程调度
this.audience.Thread.Attach(new MagicThread(StampUtils.GetSequence(), new Func <IEnumerable <Motion <Msger> >, Action>((motions) =>
{
return(() =>
{
if (!MatchUtils.IsEmpty(motions))
{
foreach (Motion <Msger> motion in motions)
{
try
{
motion.Fun(motion.Msg);
}
catch
{ }
}
}
});
})(this.BatchTask(this.schedule, 100))));
}
}
catch
{
{
this.schedule.Clear();
}
this.complete = true;
}
}
}
/// <summary>
/// 图层缩放
/// </summary>
public sealed override void Zoomto(int num)
{
if (!MatchUtils.IsEmpty(this.Target) && this.Equals(this.Target.Netmap) && this.Target.Enable && this.Enable && this.Level != num)
{
double deg = 0.0;
try
{
deg = this.Factor[num];
}
catch
{
deg = 0.0;
}
finally
{
if (deg > 0)
{
Pixel middle = this.Crd2px(this.Target.Center);
if (!MatchUtils.IsEmpty(middle))
{
// 缩放比率
double ratio = this.Factor[this.Level] / this.Factor[this.Level = num];
{
// 缩略地图
this.Thumb(ratio, new Pixel(
middle.X - this.Nature.X,
middle.Y - this.Nature.Y
));
// 地图属性
this.Grasp(middle.Ratio(ratio), this.Nature);
// 事件通知
this.Trigger(this.Target.Listen.ZoomEvent, ratio);
}
// 延时重绘
this.Target.Thread.Attach(new MagicThread(StampUtils.GetSequence(), () =>
{
{
Thread.Sleep(700);
}
this.Build(this.Crd2px(this.Target.Center));
}));
}
}
}
}
}
/// <summary>
/// 获取图像数据
/// </summary>
public void DownLoad()
{
if (!this.token.IsCancellationRequested)
{
if (this.cache.IsExist(this.path))
{
Object[] result = { ImageUtils.Format(this.cache.Fetch(this.path) as byte[]) };
if (MatchUtils.IsEmpty(this.expect))
{
this.action.DynamicInvoke(result);
}
else
{
this.action.DynamicInvoke(result.Concat(this.expect).ToArray());
}
}
else
{
using (WebClient http = new WebClient())
{
http.Headers.Set("User-Agent", "Windows NT");
{
this.token.Register(() =>
{
this.thread.Attach(new MagicThread(StampUtils.GetSequence(), http.CancelAsync));
});
// 注册回调
{
http.DownloadDataCompleted += new DownloadDataCompletedEventHandler(this.WebClient_DownLoadDataCompleted);
}
http.DownloadDataAsync(new Uri(this.path));
}
}
}
}
}
/// <summary>
/// 图层重绘函数
/// </summary>
/// <param name="msg">重绘消息</param>
public sealed override void Redraw(Msger msg)
{
if (!MatchUtils.IsEmpty(this.Target) && this.Target.Enable && this.Enable && !MatchUtils.IsEmpty(this.Facade))
{
if (MatchUtils.IsEmpty(msg))
{
this.Redraw();
}
else
{
// Drag Event.
if (this.Target.Listen.DragEvent.Equals(msg.Chan))
{
if (this.Allow && !MatchUtils.IsEmpty(this.Nature))
{
if (this.Extent.Contain(this.Target, msg.Info as Coord))
{
this.Build(this.Crd2px(msg.Info as Coord));
}
else
{
this.Facade.Dispatcher.BeginInvoke(new Action(() =>
{
this.Facade.Children.Clear();
}));
}
}
return;
}
// Zoom Event.
if (this.Target.Listen.ZoomEvent.Equals(msg.Chan))
{
if (this.Allow)
{
if ((this.Level = this.Fusion(this.Target)) > -1)
{
Pixel middle = this.Crd2px(this.Target.Center);
if (!MatchUtils.IsEmpty(this.Nature))
{
// 缩略地图
this.Thumb((double)msg.Info, new Pixel(
middle.X / (double)msg.Info - this.Nature.X,
middle.Y / (double)msg.Info - this.Nature.Y
));
// 地图属性
this.Grasp(middle, this.Nature);
}
else
{
// 地图属性
this.Grasp(middle, this.Nature = new Nature());
}
// 延时重绘
if (this.Extent.Contain(this.Target, this.Target.Center))
{
this.Target.Thread.Attach(new MagicThread(StampUtils.GetSequence(), () =>
{
{
Thread.Sleep(700);
}
this.Build(this.Crd2px(this.Target.Center));
}));
}
}
else
{
if (!MatchUtils.IsEmpty(this.Nature))
{
this.Nature = null;
{
this.Facade.Dispatcher.BeginInvoke(new Action(() =>
{
this.Facade.Children.Clear();
}));
}
}
}
}
return;
}
// Swap Event.
if (this.Target.Listen.SwapEvent.Equals(msg.Chan))
{
Geog geog = msg.Info as Geog;
if (!geog.Cover || this.Equals(geog))
{
this.Redraw();
}
}
}
}
}
