private static void RescaleWidgets(bool hullInFirstWidgetSpace, Vector2?pivotPoint, List <Widget> widgets, int controlPointIndex,
Vector2 curMousePos, Vector2 prevMousePos, bool proportional, bool convertScaleToSize)
{
WidgetTransformsHelper.ApplyTransformationToWidgetsGroupObb(
SceneView.Scene,
widgets, pivotPoint, hullInFirstWidgetSpace, curMousePos, prevMousePos,
convertScaleToSize,
(originalVectorInObbSpace, deformedVectorInObbSpace) => {
var deformationScaleInObbSpace = new Vector2d(
Math.Abs(originalVectorInObbSpace.X) < Mathf.ZeroTolerance ? 1 : deformedVectorInObbSpace.X / originalVectorInObbSpace.X,
Math.Abs(originalVectorInObbSpace.Y) < Mathf.ZeroTolerance ? 1 : deformedVectorInObbSpace.Y / originalVectorInObbSpace.Y
);
if (!lookupInvolvedAxes[controlPointIndex][0])
{
deformationScaleInObbSpace.X = proportional ? deformationScaleInObbSpace.Y : 1;
}
else if (!lookupInvolvedAxes[controlPointIndex][1])
{
deformationScaleInObbSpace.Y = proportional ? deformationScaleInObbSpace.X : 1;
}
else if (proportional)
{
deformationScaleInObbSpace.X = (deformationScaleInObbSpace.X + deformationScaleInObbSpace.Y) / 2;
deformationScaleInObbSpace.Y = deformationScaleInObbSpace.X;
}
return(new Transform2d(Vector2d.Zero, deformationScaleInObbSpace, 0));
}
);
}
private void RotateWidgets(Vector2 pivotPoint, List<Widget> widgets, Vector2 curMousePos, Vector2 prevMousePos,
bool snapped, List<Tuple<Widget, AccumulativeRotationHelper>> accumulativeRotationHelpers)
{
WidgetTransformsHelper.ApplyTransformationToWidgetsGroupObb(
sv.Scene,
widgets,
widgets.Count <= 1 ? (Vector2?) null : pivotPoint, widgets.Count <= 1,
curMousePos, prevMousePos,
false,
(originalVectorInObbSpace, deformedVectorInObbSpace) => {
double rotation = 0;
if (originalVectorInObbSpace.Length > Mathf.ZeroTolerance &&
deformedVectorInObbSpace.Length > Mathf.ZeroTolerance) {
rotation = Mathd.Wrap180(deformedVectorInObbSpace.Atan2Deg - originalVectorInObbSpace.Atan2Deg);
}
if (snapped) {
rotation = WidgetTransformsHelper.RoundTo(rotation, 15);
}
foreach (Tuple<Widget, AccumulativeRotationHelper> tuple in accumulativeRotationHelpers) {
tuple.Item2.Rotate((float) rotation);
}
return new Transform2d(Vector2d.Zero, Vector2d.One, rotation);
}
);
foreach (Tuple<Widget, AccumulativeRotationHelper> tuple in accumulativeRotationHelpers) {
SetAnimableProperty.Perform(tuple.Item1, nameof(Widget.Rotation), tuple.Item2.Rotation,
CoreUserPreferences.Instance.AutoKeyframes);
}
}
private static IEnumerator <object> Drag()
{
var initialMousePos = SceneView.MousePosition;
while ((SceneView.MousePosition - initialMousePos).Length <= Threshold && SceneView.Input.IsMousePressed())
{
Utils.ChangeCursorIfDefault(MouseCursor.Hand);
yield return(null);
}
if (!SceneView.Input.IsMousePressed())
{
yield break;
}
if (SceneView.Input.IsKeyPressed(Key.Alt))
{
Document.Current.History.DoTransaction(SceneView.DuplicateSelectedNodes);
}
using (Document.Current.History.BeginTransaction()) {
var widgets = Document.Current.SelectedNodes().Editable().OfType <Widget>().ToList();
var dragDirection = DragDirection.Any;
Utils.CalcHullAndPivot(widgets, Document.Current.Container.AsWidget, out _, out var pivot);
while (SceneView.Input.IsMousePressed())
{
Document.Current.History.RollbackTransaction();
Utils.ChangeCursorIfDefault(MouseCursor.Hand);
var curMousePos = SceneView.MousePosition;
var shiftPressed = SceneView.Input.IsKeyPressed(Key.Shift);
if (shiftPressed)
{
switch (dragDirection)
{
case DragDirection.Horizontal:
curMousePos.Y = initialMousePos.Y;
break;
case DragDirection.Vertical:
curMousePos.X = initialMousePos.X;
break;
default:
if ((curMousePos - initialMousePos).Length > 5 / SceneView.Scene.Scale.X)
{
var d = curMousePos - initialMousePos;
dragDirection = d.X.Abs() > d.Y.Abs() ? DragDirection.Horizontal : DragDirection.Vertical;
}
break;
}
}
else
{
dragDirection = DragDirection.Any;
}
var mouseDelta = curMousePos - initialMousePos;
mouseDelta = mouseDelta.Snap(Vector2.Zero);
var requiredSnap = SceneViewCommands.SnapWidgetPivotToRuler.Checked || SceneViewCommands.SnapWidgetBorderToRuler.Checked;
if (mouseDelta != Vector2.Zero && requiredSnap)
{
var rulers = GetRulers();
foreach (var widget in widgets)
{
var points = new List <Vector2>();
if (SceneViewCommands.SnapWidgetPivotToRuler.Checked)
{
points.Add(widget.CalcPositionInSpaceOf(SceneView.Scene));
}
if (SceneViewCommands.SnapWidgetBorderToRuler.Checked)
{
points.AddRange(widget.CalcHullInSpaceOf(SceneView.Scene));
}
foreach (var point in points)
{
var pointMoved = point + mouseDelta;
var pointSnapped = SnapPointToRulers(pointMoved, rulers);
mouseDelta += pointSnapped - pointMoved;
}
}
}
Transform2d OnCalculateTransformation(Vector2d originalVectorInObbSpace, Vector2d deformedVectorInObbSpace) =>
new Transform2d((deformedVectorInObbSpace - originalVectorInObbSpace).Snap(Vector2d.Zero), Vector2d.One, 0);
WidgetTransformsHelper.ApplyTransformationToWidgetsGroupObb(
SceneView.Scene,
widgets,
widgets.Count <= 1 ? (Vector2?)null : pivot,
widgets.Count <= 1, initialMousePos + mouseDelta,
initialMousePos,
false,
OnCalculateTransformation
);
yield return(null);
}
Document.Current.History.CommitTransaction();
SceneView.Input.ConsumeKey(Key.Mouse0);
}
}