public IEnumerator <object> Task()
{
while (true)
{
if (!SceneView.Instance.InputArea.IsMouseOverThisOrDescendant())
{
yield return(null);
continue;
}
var grids = Document.Current.SelectedNodes().Editable().OfType <NineGrid>();
var mousePosition = sv.MousePosition;
foreach (var grid in grids)
{
foreach (var line in NineGridLine.GetForNineGrid(grid))
{
if (line.HitTest(mousePosition, sv.Scene))
{
Utils.ChangeCursorIfDefault(MouseCursor.Hand);
if (sv.Input.ConsumeKeyPress(Key.Mouse0))
{
yield return(Drag(line));
}
goto Next;
}
}
}
Next:
yield return(null);
}
}
private static void Render(Widget canvas)
{
if (Document.Current.PreviewScene)
{
return;
}
var grids = Document.Current.SelectedNodes().Editable().OfType <NineGrid>();
foreach (var grid in grids)
{
foreach (var line in NineGridLine.GetForNineGrid(grid))
{
line.Render(canvas);
}
}
}
private static void Render(Widget canvas)
{
if (Core.Document.Current.ExpositionMode || Core.Document.Current.PreviewAnimation)
{
return;
}
var grids = Core.Document.Current.SelectedNodes().Editable().OfType <NineGrid>();
foreach (var grid in grids)
{
foreach (var line in NineGridLine.GetForNineGrid(grid))
{
line.Render(canvas);
}
}
}
private IEnumerator <object> Drag(NineGridLine nineGridLine)
{
var transform = sv.Scene.CalcTransitionToSpaceOf(Document.Current.Container.AsWidget);
var initMousePos = sv.MousePosition * transform;
var dir = nineGridLine.GetDirection();
float value = nineGridLine.Value;
var nineGrid = nineGridLine.Owner;
var propertyName = nineGridLine.PropertyName;
var maxValue = nineGridLine.MaxValue;
var size = nineGridLine.TextureSize * nineGridLine.Scale;
float clipTolerance = 15 / size;
float[] clipPositions = { 0, maxValue, maxValue / 3, maxValue / 3 * 2 };
using (Document.Current.History.BeginTransaction()) {
while (sv.Input.IsMousePressed())
{
Document.Current.History.RollbackTransaction();
Utils.ChangeCursorIfDefault(MouseCursor.Hand);
var curMousePos = sv.MousePosition * transform;
var diff = Vector2.DotProduct((curMousePos - initMousePos), dir) / size;
if (Mathf.Abs(diff) > Mathf.ZeroTolerance)
{
float newValue = value + diff;
newValue = Mathf.Clamp(newValue, Mathf.ZeroTolerance, maxValue);
if (sv.Input.IsKeyPressed(Key.Shift))
{
foreach (var origin in clipPositions)
{
newValue = newValue.Snap(origin, clipTolerance);
}
}
Core.Operations.SetAnimableProperty.Perform(nineGrid,
propertyName, newValue, CoreUserPreferences.Instance.AutoKeyframes);
}
yield return(null);
}
sv.Input.ConsumeKey(Key.Mouse0);
Document.Current.History.CommitTransaction();
}
}
