private void task_TaskUpdate(object sender, DrawTaskEventArgs e)
{
DrawLayerTask task = (DrawLayerTask)sender;
bool canShow = true;
lock (this)
{
int index = tasks.IndexOf(task);
for (int i = 0; i < index; i++)
{
if (tasks[i].layer.Datatable.TableType != DatatableType.Point && tasks[i].layer.Datatable.TableType != DatatableType.Line)
{
canShow = false;
break;
}
}
}
if (task.state == 0)//初始状态
{
showEngine.Insert(task.layer.LayerID, task.layerIndex, e.bitmap, canShow, false);
task.state = 1;
}
else
{
showEngine.Combine(task.layer.LayerID, e.bitmap, canShow, false);
}
}
internal void DoTaskUpdateEvent(DrawTaskEventArgs e)
{
if (TaskUpdate != null)
{
TaskUpdate(this, e);
}
}
private void task_TaskComplete(object sender, DrawTaskEventArgs e)
{
lock (this)
{
DrawLayerTask task = (DrawLayerTask)sender;
List <DrawLayerTask> ptasks = new List <DrawLayerTask>();
Console.WriteLine("task_TaskComplete:" + task.layer.AliasName);
// if (task.layer.DatatableName=="point")
// {
// Console.WriteLine("task_TaskComplete:" + tasks.Count);
// }
if (e != null)
{
int index = tasks.Count - 1;
if (task.state == 0)
{
task.state = 3;//insert
}
else
{
task.state = 2;//combine
}
task.drawBitmap = e.bitmap;
int lastIndex = -1;
for (int i = 0; i < tasks.Count; i++)
{
if (tasks[i] != task)
{
if (i < index)
{
if (tasks[i].state != 2 && tasks[i].state != 3)
{
return;
}
else
{
lastIndex = i;
}
}
else
{
if (tasks[i].state != 2 && tasks[i].state != 3 && tasks[i].layer.Datatable.TableType != DatatableType.Point && tasks[i].layer.Datatable.TableType != DatatableType.Line)
{
return;
}
else if (tasks[i].state != 2 && tasks[i].state != 3)
{
lastIndex = i - 1;
break;
}
else
{
lastIndex = i;
}
}
}
else
{
index = i;
lastIndex = i;
}
}
// index = tasks.IndexOf(task);
// if (index != 0)
// {
// if (task.state==0)
// {
// task.state = 3;
// }
// else task.state = 2;
// task.drawBitmap = e.bitmap;
// return;
// }
// else
// {
//ptasks.Add(task);
List <ulong> ids = new List <ulong>();
List <int> indexs = new List <int>();
List <Bitmap> bitmaps = new List <Bitmap>();
List <bool> isInOrComs = new List <bool>();
// ids.Add(task.layer.LayerID);
// indexs.Add(task.layerIndex);
// bitmaps.Add(e.bitmap);
// if (task.state==0)
// {
// isInOrComs.Add(true);
// }
// else
// {
// isInOrComs.Add(false);
// }
for (int i = 0; i <= /*tasks.Count-1*/ lastIndex; i++)
{
// if (tasks[i].state!=2&&tasks[i].state!=3)
// {
// break;
// }
// else
// {
ids.Add(tasks[i].layer.LayerID);
indexs.Add(tasks[i].layerIndex);
bitmaps.Add(tasks[i].drawBitmap);
tasks[i].drawBitmap = null;
ptasks.Add(tasks[i]);
if (tasks[i].state == 3)
{
isInOrComs.Add(true);
}
else
{
isInOrComs.Add(false);
}
Console.WriteLine("complete :" + tasks[i].layer.AliasName);
//}
}
showEngine.InsertOrCombine(ids, indexs, bitmaps, isInOrComs, true, true);
// if (task.state == 0)
// {
// showEngine.Insert(task.layer.LayerID, task.layerIndex, e.bitmap, e.canShow, true);
// task.state = 2;
// }
// else showEngine.Combine(task.layer.LayerID, e.bitmap, e.canShow, true);
//}
}
else
{
ptasks.Add(task);
showEngine.Remove(task.layer.LayerID);
}
RemoveTask(ptasks.ToArray());
}
}
internal virtual void Run()
{
DrawTaskEventArgs lastArgs = null;
try
{
if (layer == null || !layer.Visible)
{
return;
}
//计算范围
List <Datarow> rows = layer.Datatable.Query(extent);
int threadCount = 0;
int onceCount = 0;
CountThread(rows, out threadCount, out onceCount);
if (threadCount == 0)
{
return;
}
for (int i = 0; i < threadCount; i++)
{
if (this.state == -1)
{
return;
}
int start = i * onceCount;
int end = (i + 1) * onceCount;
if (end > rows.Count)
{
end = rows.Count;
}
AsyncThread asyncth = new AsyncThread();
asyncth.Call += delegate(object o)
{
Bitmap bitmap = new Bitmap(this.width, this.height);
Graphics g = Graphics.FromImage(bitmap);
for (int j = start; j < end; j++)
{
if (this.state == -1)
{
g.Dispose();
bitmap.Dispose();
return;
}
Draw(g, rows[j]);
}
g.Dispose();
DrawTaskEventArgs args = new DrawTaskEventArgs(bitmap, true);
if ((int)o + 1 == threadCount)
{
lastArgs = args;
}
else
{
DoTaskUpdateEvent(args);
}
};
asyncth.Start(i);
asyncThreads.Add(asyncth);
}
foreach (AsyncThread item in asyncThreads)
{
item.Wait();
item.Dispose();
}
}
finally
{
asyncThreads.Clear();
DoTaskCompleteEvent(lastArgs);
}
}