//Mouse down
public void OnMouseDown(Vector2 mousePosition, Matrix4X4 screenToLocal, TrackBallTransformType trackType = TrackBallTransformType.Rotation)
{
//if (currentTrackingType == MouseDownType.None)
{
CurrentTrackingType = trackType;
switch (CurrentTrackingType)
{
case TrackBallTransformType.Rotation:
mouseDownPosition = mousePosition;
break;
case TrackBallTransformType.Translation:
localToScreenTransform = Matrix4X4.Invert(screenToLocal);
lastTranslationMousePosition = mousePosition;
break;
case TrackBallTransformType.Scale:
lastScaleMousePosition = mousePosition;
break;
default:
throw new NotImplementedException();
}
}
}
private static void Offset3DView(View3DWidget view3D, Vector2 offset, TrackBallTransformType operation)
{
var center = view3D.TrackballTumbleWidget.LocalBounds.Center;
view3D.TrackballTumbleWidget.TrackBallController.OnMouseDown(center, Matrix4X4.Identity, operation);
view3D.TrackballTumbleWidget.TrackBallController.OnMouseMove(center + offset);
view3D.TrackballTumbleWidget.TrackBallController.OnMouseUp();
view3D.TrackballTumbleWidget.Invalidate();
}
private static void Offset3DView(View3DWidget view3D, Vector2 offset, TrackBallTransformType operation)
{
var center = view3D.TrackballTumbleWidget.LocalBounds.Center;
var oldState = view3D.TrackballTumbleWidget.TransformState;
view3D.TrackballTumbleWidget.TransformState = operation;
var mouseEvent = new MouseEventArgs(MouseButtons.Left, 1, center.X, center.Y, 0);
view3D.TrackballTumbleWidget.OnMouseDown(mouseEvent);
mouseEvent = new MouseEventArgs(mouseEvent, center.X + offset.X, center.Y + offset.Y);
view3D.TrackballTumbleWidget.OnMouseMove(mouseEvent);
view3D.TrackballTumbleWidget.OnMouseUp(mouseEvent);
view3D.TrackballTumbleWidget.TransformState = oldState;
view3D.TrackballTumbleWidget.Invalidate();
}
public void OnMouseUp()
{
switch (CurrentTrackingType)
{
case TrackBallTransformType.Rotation:
break;
case TrackBallTransformType.Translation:
//currentTranslationMatrix = Matrix4X4.Identity;
break;
case TrackBallTransformType.Scale:
break;
default:
throw new NotImplementedException();
}
CurrentTrackingType = TrackBallTransformType.None;
}