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);
}
}
private void DoDrawLayers()
{
for (int i = _map.Layers.Count - 1; i >= 0; i--)
{
Layer layer = _map.Layers[i];
DrawLayerTask task = GetTask(layer);
if (task != null)
{
task.layerIndex = i;
_mapDrawEngine.InsertTask(task);
}
}
_mapDrawEngine.StartAllTask();
}
private void DoDrawLayer(Layer layer)
{
int index = _map.Layers.IndexOf(layer);
if (index >= 0)
{
DrawLayerTask task = GetTask(layer);
if (task != null)
{
task.layerIndex = index;
_mapDrawEngine.InsertTask(task);
task.Start();
}
}
}
public void InsertTask(DrawLayerTask task)
{
lock (this)
{
foreach (DrawLayerTask item in tasks)
{
if (item.layer.LayerID == task.layer.LayerID)
{
RemoveTask(item);
break;
}
}
tasks.Add(task);
task.TaskComplete += task_TaskComplete;
task.TaskUpdate += task_TaskUpdate;
}
}
private DrawLayerTask GetTask(Layer layer)
{
DrawLayerTask task = null;
if (layer is RasterLayer)
{
task = new DrawRasterTask(_workspace, layer as RasterLayer, this.Extent, this.Width, this.Height);
}
else if (layer is PointLayer)
{
task = new DrawPointTask(_workspace, layer as PointLayer, this.Extent, this.Width, this.Height);
}
else if (layer is LineLayer)
{
task = new DrawLineTask(_workspace, layer as LineLayer, this.Extent, this.Width, this.Height);
}
else if (layer is PolygonLayer)
{
task = new DrawPolygonTask(_workspace, layer as PolygonLayer, this.Extent, this.Width, this.Height);
}
return(task);
}
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());
}
}