private void UserControl_MouseMove(object sender, MouseEventArgs e)
{
if (trackingMouseMove)
{
FrameworkElement element = sender as FrameworkElement;
FlowNodePictureContainer fn = sender as FlowNodePictureContainer;
try
{
OrdinaryNode sn = fn.currentPic as OrdinaryNode;
if (sn != null && sn.picRect.Cursor == Cursors.SizeNWSE)
{
sn.picRect.Width += 1;
sn.picRect.Height += 1;
}
else
{
element.Cursor = Cursors.Hand;
if (e.GetPosition(null) == mousePosition)
{
return;
}
hadActualMove = true;
double deltaV = e.GetPosition(null).Y - mousePosition.Y;
double deltaH = e.GetPosition(null).X - mousePosition.X;
double newTop = deltaV + Position.Y;
double newLeft = deltaH + Position.X;
double containerWidth = (double)this.Parent.GetValue(Canvas.WidthProperty);
double containerHeight = (double)this.Parent.GetValue(Canvas.HeightProperty);
if ((CenterPoint.X - sdPicture.PictureWidth / 2 < 2 && deltaH < 0) ||
(CenterPoint.Y - sdPicture.PictureHeight / 2 < 2 && deltaV < 0)
)
{
//超过流程容器的范围
}
else
{
positionIsChange = true;
this.SetValue(Canvas.TopProperty, newTop);
this.SetValue(Canvas.LeftProperty, newLeft);
Move(this, e);
mousePosition = e.GetPosition(null);
_container.MoveControlCollectionByDisplacement(deltaH, deltaV, this);
_container.IsNeedSave = true;
}
}
}
catch
{
}
}
}
private void UserControl_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
e.Handled = true;
hadActualMove = false;
if (_doubleClickTimer != null)
{
if (_doubleClickTimer.IsEnabled)
{
_doubleClickTimer.Stop();
_container.ShowFlowNodeSetting(this);
}
else
{
_doubleClickTimer.Start();
this.SetValue(Canvas.ZIndexProperty, _container.NextMaxIndex);
FrameworkElement element = sender as FrameworkElement;
FlowNodePictureContainer fn = sender as FlowNodePictureContainer;
OrdinaryNode sn = fn.currentPic as OrdinaryNode;
mousePosition = e.GetPosition(null);
trackingMouseMove = true;
if (null != element)
{
element.CaptureMouse();
if (sn != null && sn.picRect.Cursor == Cursors.SizeNWSE)
{
}
else
{
element.Cursor = Cursors.Hand;
}
}
}
}
}
