protected override void OnCanvasHierarchyChanged()
{
// Use m_Cavas so we dont auto call CacheCanvas
Canvas currentCanvas = m_Canvas;
// Clear the cached canvas. Will be fetched below if active.
m_Canvas = null;
if (!IsActive())
{
return;
}
CacheCanvas();
if (currentCanvas != m_Canvas)
{
GraphicRegistry.UnregisterGraphicForCanvas(currentCanvas, this);
// Only register if we are active and enabled as OnCanvasHierarchyChanged can get called
// during object destruction and we dont want to register ourself and then become null.
if (IsActive())
{
GraphicRegistry.RegisterGraphicForCanvas(canvas, this);
}
}
}
protected override void OnTransformParentChanged()
{
base.OnTransformParentChanged();
m_Canvas = null;
if (!IsActive())
{
return;
}
CacheCanvas();
GraphicRegistry.RegisterGraphicForCanvas(canvas, this);
SetAllDirty();
}
/// <summary>
/// Mark the Graphic and the canvas as having been changed.
/// </summary>
protected override void OnEnable()
{
base.OnEnable();
CacheCanvas();
GraphicRegistry.RegisterGraphicForCanvas(canvas, this);
#if UNITY_EDITOR
GraphicRebuildTracker.TrackGraphic(this);
#endif
if (s_WhiteTexture == null)
{
s_WhiteTexture = Texture2D.whiteTexture;
}
SetAllDirty();
}