virtual public void Update(UpdateContext context)
{
ValidateMatrix(false);
if (_paintingMode != 0)
{
if (graphics != null && paintingGraphics.texture != null)
{
context.PushRenderTarget(paintingGraphics.texture, new Vector2(_renderRect.x, _renderRect.y));
graphics.Render(_renderRect, _renderScale, _renderRotation, _alpha, context);
context.PopRenderTarget();
}
if (!(this is Container))
{
paintingGraphics.Render(_renderRect, _renderScale, _renderRotation, _alpha, context);
}
}
else
{
if (graphics != null)
{
graphics.Render(_renderRect, _renderScale, _renderRotation, _alpha, context);
}
}
if (_filter != null)
{
_filter.Update();
}
}
override public void Update(UpdateContext context)
{
base.Update(context);
if (_paintingMode != 0 && paintingGraphics.texture != null)
{
context.PushRenderTarget(paintingGraphics.texture, new Vector2(_renderRect.x, _renderRect.y));
}
if (_clipRect != null)
{
//在这里可以直接使用 _localToWorldMatrix， 因为已经更新
Rect clipRect = (Rect)_clipRect;
Matrix4x4 mat = Matrix4x4.Identity;
ToolSet.TransformRect(ref clipRect, ref _localToWorldMatrix, ref mat);
context.EnterClipping(this.id, clipRect);
}
float savedAlpha = context.alpha;
context.alpha *= this.alpha;
bool savedGrayed = context.grayed;
context.grayed = context.grayed || this.grayed;
int cnt = _children.Count;
for (int i = 0; i < cnt; i++)
{
DisplayObject child = _children[i];
if (child.visible)
{
child.Update(context);
}
}
if (_clipRect != null)
{
context.LeaveClipping();
}
if (_paintingMode != 0 && paintingGraphics.texture != null)
{
context.PopRenderTarget();
paintingGraphics.Render(_renderRect, _renderScale, _renderRotation, 1, context);
}
context.alpha = savedAlpha;
context.grayed = savedGrayed;
}