public override void Repaint(Event e)
{
Debug.Assert(GUIClip.Internal_GetCount() == 0, "UIElement is not compatible with IMGUI GUIClips, only GUIClip.ParentClipScope");
// if the surface DPI changes we need to invalidate styles
if (!Mathf.Approximately(m_StyleContext.currentPixelsPerPoint, GUIUtility.pixelsPerPoint))
{
m_RootContainer.Dirty(ChangeType.Styles);
m_StyleContext.currentPixelsPerPoint = GUIUtility.pixelsPerPoint;
}
Profiler.BeginSample("Panel Repaint");
ValidatePersistentData();
ValidateLayout();
stylePainter.repaintEvent = e;
// paint
Rect clipRect = visualTree.clippingOptions != VisualElement.ClippingOptions.NoClipping ? visualTree.layout : GUIClip.topmostRect;
whinedOnceAboutRotatedClipSpaceThisFrame = false;
Profiler.BeginSample("Panel Root PaintSubTree");
PaintSubTree(e, visualTree, Matrix4x4.identity, VisualElement.ClippingOptions.NoClipping, clipRect);
Profiler.EndSample();
Profiler.EndSample();
if (panelDebug != null)
{
if (panelDebug.EndRepaint())
{
this.visualTree.Dirty(ChangeType.Repaint);
}
}
}
private bool ValidateSubTree(VisualElement root)
{
if (root.renderData.lastLayout != new Rect(root.cssNode.LayoutX, root.cssNode.LayoutY, root.cssNode.LayoutWidth, root.cssNode.LayoutHeight))
{
root.Dirty(ChangeType.Transform);
root.renderData.lastLayout = new Rect(root.cssNode.LayoutX, root.cssNode.LayoutY, root.cssNode.LayoutWidth, root.cssNode.LayoutHeight);
}
bool hasNewLayout = root.cssNode.HasNewLayout;
if (hasNewLayout)
{
for (int i = 0; i < root.shadow.childCount; i++)
{
this.ValidateSubTree(root.shadow[i]);
}
}
using (PostLayoutEvent pooled = PostLayoutEvent.GetPooled(hasNewLayout))
{
pooled.target = root;
UIElementsUtility.eventDispatcher.DispatchEvent(pooled, this);
}
root.ClearDirty(ChangeType.Layout);
root.cssNode.MarkLayoutSeen();
return(hasNewLayout);
}
private bool ValidateSubTree(VisualElement root)
{
if (root.renderData.lastLayout != new Rect(root.cssNode.LayoutX, root.cssNode.LayoutY, root.cssNode.LayoutWidth, root.cssNode.LayoutHeight))
{
root.Dirty(ChangeType.Transform);
root.renderData.lastLayout = new Rect(root.cssNode.LayoutX, root.cssNode.LayoutY, root.cssNode.LayoutWidth, root.cssNode.LayoutHeight);
}
bool flag = root.cssNode.HasNewLayout;
if (flag)
{
VisualContainer visualContainer = root as VisualContainer;
if (visualContainer != null)
{
foreach (VisualElement current in visualContainer)
{
flag |= this.ValidateSubTree(current);
}
}
}
root.OnPostLayout(flag);
root.ClearDirty(ChangeType.Layout);
root.cssNode.MarkLayoutSeen();
return(flag);
}
public void Insert(int index, VisualElement child)
{
if (child == null)
{
throw new ArgumentException("Cannot insert null child");
}
if (index > childCount)
{
throw new IndexOutOfRangeException("Index out of range: " + index);
}
if (child == m_Owner)
{
throw new ArgumentException("Cannot insert element as its own child");
}
child.RemoveFromHierarchy();
child.shadow.SetParent(m_Owner);
if (m_Owner.m_Children == null)
{
//TODO: Trigger a release on finalizer or something, this means we'll need to make the pool thread-safe as well
m_Owner.m_Children = VisualElementListPool.Get();
}
if (m_Owner.yogaNode.IsMeasureDefined)
{
m_Owner.yogaNode.SetMeasureFunction(null);
}
PutChildAtIndex(child, index);
child.SetEnabledFromHierarchy(m_Owner.enabledInHierarchy);
// child styles are dependent on topology
child.Dirty(ChangeType.Styles);
child.Dirty(ChangeType.Transform);
m_Owner.Dirty(ChangeType.Layout);
// persistent data key may have changed or needs initialization
if (!string.IsNullOrEmpty(child.persistenceKey))
{
child.Dirty(ChangeType.PersistentData);
}
}
void ValidateSubTree(VisualElement root)
{
Rect cssRect = new Rect(root.cssNode.LayoutX, root.cssNode.LayoutY, root.cssNode.LayoutWidth, root.cssNode.LayoutHeight);
Rect lastRect = root.renderData.lastLayout;
bool rectChanged = lastRect != cssRect;
// if the last layout rect is different than the current one we must dirty transform on children
if (rectChanged)
{
if (lastRect.position != cssRect.position)
{
root.Dirty(ChangeType.Transform);
}
root.renderData.lastLayout = cssRect;
}
// ignore clean sub trees
bool hasNewLayout = root.cssNode.HasNewLayout;
if (hasNewLayout)
{
for (int i = 0; i < root.shadow.childCount; ++i)
{
ValidateSubTree(root.shadow[i]);
}
}
if (rectChanged)
{
using (var evt = PostLayoutEvent.GetPooled(hasNewLayout, lastRect, cssRect))
{
evt.target = root;
UIElementsUtility.eventDispatcher.DispatchEvent(evt, this);
}
}
// reset both flags at the end
root.ClearDirty(ChangeType.Layout);
if (hasNewLayout)
{
root.cssNode.MarkLayoutSeen();
}
}
