private TimeLineItemControl CreateTimeLineItemControl(ITimeLineDataItem data)
{
Binding startBinding = new Binding("StartTime");
startBinding.Mode = BindingMode.TwoWay;
startBinding.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
Binding endBinding = new Binding("EndTime");
endBinding.Mode = BindingMode.TwoWay;
endBinding.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
DateTime timelineStart = StartDate;
Binding expandedBinding = new Binding("TimelineViewExpanded");
expandedBinding.Mode = BindingMode.TwoWay;
endBinding.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
TimeLineItemControl adder = new TimeLineItemControl();
adder.TimeLineStartTime = timelineStart;
adder.DataContext = data;
adder.Content = data;
adder.SetBinding(TimeLineItemControl.StartTimeProperty, startBinding);
adder.SetBinding(TimeLineItemControl.EndTimeProperty, endBinding);
adder.SetBinding(TimeLineItemControl.IsExpandedProperty, expandedBinding);
if (_template != null)
{
adder.ContentTemplate = _template;
}
/*adder.PreviewMouseLeftButtonDown += item_PreviewEditButtonDown;
adder.MouseMove += item_MouseMove;
adder.PreviewMouseLeftButtonUp += item_PreviewEditButtonUp;*/
adder.PreviewMouseRightButtonDown += item_PreviewEditButtonDown;
adder.MouseMove += item_MouseMove;
adder.PreviewMouseRightButtonUp += item_PreviewEditButtonUp;
adder.PreviewMouseLeftButtonUp += item_PreviewDragButtonUp;
adder.PreviewMouseLeftButtonDown += item_PreviewDragButtonDown;
adder.UnitSize = UnitSize;
return adder;
}
private void ScrollToItem(ITimeLineDataItem target)
{
Double tgtNewWidth = 0;
Double maxUnitSize = 450;//28000;
Double minUnitSize = 1;
if (_scrollViewer != null)
{
for (int i = 1; i < Children.Count; i++)
{
var ctrl = Children[i] as TimeLineItemControl;
if (ctrl != null && ctrl.DataContext == target)
{
Double curW = ctrl.Width;
if (curW < 5)
{
tgtNewWidth = 50;
}
else if (curW > _scrollViewer.ViewportWidth)
{
tgtNewWidth = _scrollViewer.ViewportWidth / 3;
}
if (tgtNewWidth != 0)
{
Double newUnitSize = (UnitSize * tgtNewWidth) / curW;
if (newUnitSize > maxUnitSize)
newUnitSize = maxUnitSize;
else if (newUnitSize < minUnitSize)
newUnitSize = minUnitSize;
UnitSize = newUnitSize;
SynchronizeSiblings();
}
ctrl.BringIntoView();
return;
}
}
}
}