private void OnDragRightTangentDelta(object sender, DragDeltaEventArgs e)
{
CurveEditor.DisableRebuildOnCurveChangeEvents();
RightTangentPosition += new Vector(e.HorizontalChange, e.VerticalChange);
var v = LimitWeightTanget(new Vector(Math.Max(RightTangentPosition.X, 0), RightTangentPosition.Y));
RightTangentPosition = new Point(v.X, v.Y);
m_vdef.OutType = VDefinition.Interpolation.Spline;
m_vdef.OutEditMode = VDefinition.EditMode.Tangent;
double angleOut = Math.PI / 2 - Math.Atan2(CurveEditor.xToU(0.0) - CurveEditor.xToU(v.X), CurveEditor.yToV(0.0) - CurveEditor.yToV(v.Y));
m_vdef.OutTangentAngle = angleOut;
if (Keyboard.Modifiers == ModifierKeys.Control)
{
m_vdef.BrokenTangents = true;
}
if (!m_vdef.BrokenTangents)
{
m_vdef.InType = VDefinition.Interpolation.Spline;
m_vdef.InEditMode = VDefinition.EditMode.Tangent;
LeftTangentPosition = new Point(-v.X, -v.Y);
m_vdef.InTangentAngle = angleOut - Math.PI;
}
_addOrUpdateKeyframeCommand.KeyframeValue = m_vdef;
_addOrUpdateKeyframeCommand.Do();
if (TV != null)
{
TV.TriggerRepaint();
}
CurveEditor.EnableRebuildOnCurveChangeEvents();
CurveEditor.UpdateLine(Curve);
}
private void OnDragDelta(object sender, DragDeltaEventArgs e)
{
var delta = new Vector(e.HorizontalChange, e.VerticalChange);
double deltaU = CurveEditor.xToU(delta.X) - CurveEditor.xToU(0);
double deltaV = CurveEditor.yToV(delta.Y) - CurveEditor.yToV(0);
if (m_MoveDirection == MoveDirection.Undecided)
{
if (Math.Abs(delta.X) + Math.Abs(delta.Y) > DRAG_THRESHOLD)
{
if (Math.Abs(delta.X) > Math.Abs(delta.Y))
{
m_MoveDirection = MoveDirection.Horizontal;
XCenterThumb.Cursor = Cursors.ScrollWE;
}
else
{
m_MoveDirection = MoveDirection.Vertical;
XCenterThumb.Cursor = Cursors.ScrollNS;
}
}
}
else
{
CurveEditor.DisableRebuildOnCurveChangeEvents();
if (m_MoveDirection == MoveDirection.Vertical)
{
V += deltaV;
}
if (m_MoveDirection == MoveDirection.Horizontal)
{
// Snap when pressing Shift
if (TV != null &&
TV.TimeSnapHandler != null &&
Keyboard.Modifiers == ModifierKeys.Shift)
{
var snapU = TV.TimeSnapHandler.CheckForSnapping(U + deltaU);
if (!Double.IsNaN(snapU))
{
deltaU = snapU - U;
}
}
// Prevent overwriting existing keys
ManipulateU(U + deltaU);
}
switch (m_MoveDirection)
{
case MoveDirection.Vertical:
_addOrUpdateKeyframeCommand.KeyframeValue = m_vdef;
_addOrUpdateKeyframeCommand.Do();
break;
case MoveDirection.Horizontal:
_moveKeyframeCommand.NewTime = U;
//_moveKeyframeCommand.Do();
break;
}
m_vdef = Curve.GetV(U); // since SetOrUpdateV clones vdef, we have to get a new value
if (TV != null)
{
TV.TriggerRepaint();
}
UpdateControlTangents();
CurveEditor.EnableRebuildOnCurveChangeEvents();
App.Current.UpdateRequiredAfterUserInteraction = true;
CurveEditor.UpdateLine(Curve);
//CurveEditor.UpdateEditBox();
}
}
