public void PerformClipping()
{
if (m_ShouldRecalculateClipRects)
{
NewRect2DMaskUtil.GetRectMasksForClip(this, m_Clippers);
m_ShouldRecalculateClipRects = false;
}
bool validRect = true;
Rect clipRect = NewClipping.FindCullAndClipWorldRect(m_Clippers, out validRect);
bool clipRectChanged = clipRect != m_LastClipRectCanvasSpace;
if (clipRectChanged || m_ForceClip)
{
foreach (IClippable clipTarget in m_ClipTargets)
{
clipTarget.SetClipRect(clipRect, validRect);
}
m_LastClipRectCanvasSpace = clipRect;
m_LastValidClipRect = validRect;
}
foreach (IClippable clipTarget in m_ClipTargets)
{
var maskable = clipTarget as NewMaskableGraphic_RectMask2D;
if (maskable != null && !maskable.canvasRenderer.hasMoved && !clipRectChanged)
{
continue;
}
clipTarget.Cull(m_LastClipRectCanvasSpace, m_LastValidClipRect);
}
}
protected override void OnEnable()
{
base.OnEnable();
m_ShouldRecalculateClipRects = true;
ClipperRegistry.Register(this);
NewRect2DMaskUtil.Notify2DMaskStateChanged(this);
}
protected override void OnDisable()
{
base.OnDisable();
m_Clippers.Clear();
m_ClipTargets.Clear();
ClipperRegistry.Unregister(this);
NewRect2DMaskUtil.Notify2DMaskStateChanged(this);
}