public Rect GetRangeForInputConnectionLine(OperatorPart input, int multiInputIndex, bool insertConnection = false)
{
var zones = OperatorWidgetInputZoneManager.ComputeInputZonesForOp(this);
OperatorWidgetInputZone matchingZone = null;
foreach (var zone in zones)
{
if (zone.Input == input && zone.MultiInputIndex == multiInputIndex)
{
if (!insertConnection && zone.InsertAtMultiInputIndex)
{
continue;
}
matchingZone = zone;
break;
}
}
// Animations on non-relevant paraemters don't have a matching zone...
if (matchingZone == null)
{
return(new Rect(0, 0, 0, 0));
}
double minX = matchingZone.LeftPosition;
double maxX = matchingZone.LeftPosition + matchingZone.Width;
return(new Rect(minX, Height, maxX - minX, 0));
}
public void GetAndDrawInputZones()
{
var inputZonesForDrag = OperatorWidgetInputZoneManager.ComputeInputZonesForOp(this);
UpdateInputZonesUIFromDescription(inputZonesForDrag);
UpdateInputRanges(inputZonesForDrag);
}
private void XOperatorWidgetThumb_Drop(object sender, DragEventArgs e)
{
var mousePosition = e.GetPosition(this);
var inputZonesForDrag = OperatorWidgetInputZoneManager.ComputeInputZonesForOp(this);
var zoneBelowMouse = OperatorWidgetInputZoneManager.FindZoneBelowMouse(inputZonesForDrag, mousePosition);
if (zoneBelowMouse != null)
{
CV.CompositionGraphView.ConnectionDragHelper.Stop(new Vector(0, 0), zoneBelowMouse);
}
e.Handled = true;
}
public OperatorWidget(Operator op)
{
Operator = op;
_outputs = Operator.Outputs;
_inputs = Operator.Inputs;
InitializeComponent();
CreateBindingsToOperator();
var outputFunctions = from output in _outputs
where output.Func is Utilities.ValueFunction
select output.Func as Utilities.ValueFunction;
foreach (var func in outputFunctions)
{
func.EvaluatedEvent += OperatorOutputFunction_EvaluatedHandler;
}
_snapHandler = new OperatorSnappingHelper(this);
Height = CompositionGraphView.GRID_SIZE;
Width = Operator.Width;
var inputZones = OperatorWidgetInputZoneManager.ComputeInputZonesForOp(this);
UpdateInputRanges(inputZones);
UpdateColors();
UpdateOutputNoses();
int outputIdx = 0;
foreach (Path nosePath in XOutputThumbGrid.Children.OfType <Path>())
{
nosePath.Fill = new SolidColorBrush(UIHelper.ColorFromType(Operator.Outputs[outputIdx].Type));
nosePath.Fill.Freeze();
++outputIdx;
}
if (!op.Visible)
{
Opacity = 0;
IsHitTestVisible = false;
}
}
/**
* This function is called by IConnectionTargets when
* the end of a connection is dragged over them.
*
* To "snap" valid connections, we save the zone so the
* GiveFeedbackHandler can use its position.
*/
public void HandleDragOverEvent(DragEventArgs e, IConnectionLineTarget targetWidget)
{
e.Effects = DragDropEffects.None;
e.Handled = true;
var connectionStartOutput = e.Data.GetData(CONNECTION_LINE_OUTPUT_IDENTIFIER) as OperatorPart;
if (connectionStartOutput == null)
{
return; // Skip non-connection drop data
}
// We can't use Mouse.GetPosition() also see
// http://msdn.microsoft.com/en-us/library/system.windows.input.mouse.getposition(v=vs.110).aspx
var mousePosition = e.GetPosition(targetWidget as UIElement);
var inputZonesForDrag = OperatorWidgetInputZoneManager.ComputeInputZonesForOp(targetWidget);
var zoneBelowMouse = OperatorWidgetInputZoneManager.FindZoneBelowMouse(inputZonesForDrag, mousePosition);
if (zoneBelowMouse != null)
{
zoneBelowMouse.IsBelowMouse = true;
_snappedToValidInput = zoneBelowMouse.Input.Type == connectionStartOutput.Type ||
zoneBelowMouse.Input.Type == FunctionType.Generic;
if (_snappedToValidInput)
{
e.Effects = DragDropEffects.Copy;
_snappedPointOnCanvas = targetWidget.PositionOnCanvas + new Vector(zoneBelowMouse.LeftPosition + 0.5 * zoneBelowMouse.Width, targetWidget.Height);
}
}
if (mousePosition == _lastDragOverPosition)
{
return;
}
_lastDragOverPosition = mousePosition;
targetWidget.UpdateInputZonesUIFromDescription(inputZonesForDrag);
}