/// <summary>设置相连线条位置</summary>
/// <param name="item">调整的元素</param>
public void SetTransitionTransitionPoint(IDesignerNode item)
{
//设置相关连线条位置
if (item is IDesignerSynchronizer)
{
foreach (var tran in ((IDesignerSynchronizer)item).LeavingTransitions)
{
TransitionControl tc = (TransitionControl)UserControls[tran.Id];
tc.SetTransitionBegin(item.Bounds, false);
tc.SetTransitionEnd(((IDesignerNode)UserControls[tc.Transition.ToNode.Id]).Bounds, true);
}
foreach (var tran in ((IDesignerSynchronizer)item).EnteringTransitions)
{
TransitionControl tc = (TransitionControl)UserControls[tran.Id];
tc.SetTransitionBegin(((IDesignerNode)UserControls[tc.Transition.FromNode.Id]).Bounds, true);
tc.SetTransitionEnd(item.Bounds, false);
}
foreach (var tran in ((IDesignerSynchronizer)item).LeavingLoops)
{
LoopControl loop = (LoopControl)UserControls[tran.Id];
loop.SetTransitionBegin(item.Bounds, false);
loop.SetTransitionEnd(((IDesignerNode)UserControls[loop.Loop.ToNode.Id]).Bounds, false);
}
foreach (var tran in ((IDesignerSynchronizer)item).EnteringLoops)
{
LoopControl loop = (LoopControl)UserControls[tran.Id];
loop.SetTransitionBegin(((IDesignerNode)UserControls[loop.Loop.FromNode.Id]).Bounds, false);
loop.SetTransitionEnd(item.Bounds, false);
}
}
else if (item is ActivityControl)
{
if (((ActivityControl)item).Activity.LeavingTransition != null)
{
TransitionControl tc = (TransitionControl)UserControls[((ActivityControl)item).Activity.LeavingTransition.Id];
tc.SetTransitionBegin(item.Bounds, true);
tc.SetTransitionEnd(((IDesignerNode)UserControls[tc.Transition.ToNode.Id]).Bounds, false);
}
if (((ActivityControl)item).Activity.EnteringTransition != null)
{
TransitionControl tc = (TransitionControl)UserControls[((ActivityControl)item).Activity.EnteringTransition.Id];
tc.SetTransitionBegin(((IDesignerNode)UserControls[tc.Transition.FromNode.Id]).Bounds, false);
tc.SetTransitionEnd(item.Bounds, true);
}
}
}
//鼠标按下
public void Handle_MouseDown(object sender, MouseEventArgs args)
{
Debug.WriteLine("Handle_MouseDown");
IDesigner item = (IDesigner)sender;
if (IsLoop || IsTransition)
{
if (item is IDesignerNode)
{
if (mouseEnterNode == null) mouseEnterNode = (IDesignerNode)item;
}
else if (item is IDesignerEdge)
{
if (mouseEnterEdge == null) mouseEnterEdge = (IDesignerEdge)item;
}
return;
}
///if (listBox.SelectedIndex==0 && item.ResizeStatus==EnumResizeStatus.Move)
if (item.ResizeStatus == EnumResizeStatus.Move)
{
isMouseCaptured = true;
((UserControl)sender).CaptureMouse();
mouseY = args.GetPosition(null).Y;
mouseX = args.GetPosition(null).X;
return;
}
if (listBox.SelectedIndex >=0 && listBox.SelectedIndex<=7)
{
if (item is IDesignerNode)
{
if (mouseEnterNode == null) mouseEnterNode = (IDesignerNode)item;
}
else if(item is IDesignerEdge)
{
if (mouseEnterEdge == null) mouseEnterEdge = (IDesignerEdge)item;
}
AddPickOn(item);
}
}
//添加连接线
private void TransitionButtonDown(object sender, MouseButtonEventArgs e)
{
if (mouseEnterNode != null)
{
if (IsTransition == false)
{
//只能存在一个输出口
if (mouseEnterNode.Node is Activity && ((Activity)mouseEnterNode.Node).LeavingTransition != null)
{
Debug.WriteLine("Activity只能存在一个输出口!");
return;
}
Debug.WriteLine("增加TransitionControl");
currentTransitionControl = new TransitionControl(this, null, false);
currentTransitionControl.InitEdge();
currentTransitionControl.Transition.FromNode = mouseEnterNode.Node;
if (mouseEnterNode.Node is Synchronizer)
{
((Synchronizer)mouseEnterNode.Node).LeavingTransitions.Add(currentTransitionControl.Transition);
}
else if (mouseEnterNode.Node is Activity)
{
((Activity)mouseEnterNode.Node).LeavingTransition = currentTransitionControl.Transition;
}
mouseEnterNode = null;
Point p = e.GetPosition(canvas);
currentTransitionControl.SetTransitionPosition(p, null, p);
if (!canvas.Children.Contains(currentTransitionControl))
{
//设置位置
canvas.Children.Add(currentTransitionControl);
UserControls.Add(currentTransitionControl.Id, currentTransitionControl);
this.WorkflowProcessCurrent.Transitions.Add(currentTransitionControl.Transition);
}
IsTransition = true;
return;
}
}
if (IsTransition)
{
if (mouseEnterNode != null)
{
//判断是否配对连接
if (currentTransitionControl.Transition.FromNode is Activity && !(mouseEnterNode.Node is Synchronizer))
{
//当源节点为Activity,目标节点必须是Synchronizer；否则退出
Debug.WriteLine("配对失败!当源节点为Activity,目标节点必须是Synchronizer;");
return;
}
else if(currentTransitionControl.Transition.FromNode is Synchronizer)
{
//当源节点为Synchronizer,目标节点必须是Activity，并且Activity没有输入项；否则退出
if (!(mouseEnterNode.Node is Activity) || ((Activity)mouseEnterNode.Node).EnteringTransition != null)
{
Debug.WriteLine("配对失败!当源节点为Synchronizer,目标节点必须是Activity，并且Activity没有输入项");
return;
}
}
currentTransitionControl.Transition.ToNode = mouseEnterNode.Node;
if (mouseEnterNode.Node is Synchronizer)
{
((Synchronizer)mouseEnterNode.Node).EnteringTransitions.Add(currentTransitionControl.Transition);
}
else if (mouseEnterNode.Node is Activity)
{
((Activity)mouseEnterNode.Node).EnteringTransition = currentTransitionControl.Transition;
}
mouseEnterNode = null;
currentTransitionControl.SavePoint();
currentTransitionControl.LoadEdge();
this.AddHandle(currentTransitionControl);
currentTransitionControl = null;
IsTransition = false;
}
else
{
Point p = e.GetPosition(canvas);
currentTransitionControl.AddLinePoint(p);
}
}
}
//添加循环线
private void LoopButtonDown(object sender, MouseButtonEventArgs e)
{
if (mouseEnterNode != null && mouseEnterNode.Node is Synchronizer && !(mouseEnterNode.Node is StartNode))
{
if (IsLoop == false)
{
Debug.WriteLine("增加LoopControl");
currentLoopControl = new LoopControl(this, null, false);
currentLoopControl.InitEdge();
currentLoopControl.Loop.FromNode = mouseEnterNode.Node;
mouseEnterNode = null;
Point p = e.GetPosition(canvas);
currentLoopControl.SetLoopPosition(p, null, p);
if (!canvas.Children.Contains(currentLoopControl))
{
//设置位置
canvas.Children.Add(currentLoopControl);
UserControls.Add(currentLoopControl.Id, currentLoopControl);
this.WorkflowProcessCurrent.Loops.Add(currentLoopControl.Loop);
}
IsLoop = true;
return;
}
}
if (IsLoop)
{
System.Threading.Thread.Sleep(300);//还没有获取mouseEnterNode就执行了。进行稍微延时已保证获取到了mouseEnterNode；
if (mouseEnterNode != null)
{
//判断是否配对连接
if (!(mouseEnterNode.Node is Synchronizer))
{
//目标节点必须是Synchronizer；否则退出
Debug.WriteLine("配对失败!目标节点必须是Synchronizer;");
return;
}
else if (currentLoopControl.Loop.FromNode.Id == mouseEnterNode.Node.Id)
{
//节点相同退出
Debug.WriteLine("配对失败!节点相同。");
return;
}
currentLoopControl.Loop.ToNode = mouseEnterNode.Node;
((Synchronizer)mouseEnterNode.Node).LeavingLoops.Add(currentLoopControl.Loop);
mouseEnterNode = null;
currentLoopControl.SavePoint();
currentLoopControl.LoadEdge();
this.AddHandle(currentLoopControl);
currentLoopControl = null;
IsLoop = false;
}
else
{
Point p = e.GetPosition(canvas);
currentLoopControl.AddLinePoint(p);
}
}
}
void Handle_MouseLeave(object sender, MouseEventArgs e)
{
//离开时发生
Debug.WriteLine("离开");
mouseEnterNode = null;
mouseEnterEdge = null;
}
void Handle_MouseEnter(object sender, MouseEventArgs e)
{
//进入时发生
if (sender is IDesignerNode)
{
Debug.WriteLine("进入时发生");
mouseEnterNode = (IDesignerNode)sender;
}
else if (sender is IDesignerEdge)
{
mouseEnterEdge = (IDesignerEdge)sender;
}
}
