C++ nuiRect::SetSize方法代码示例

void nuiPopupMenu::CalcTreeSize(nuiRect& rRect, nuiTreeNode* pTree, uint32& cpt)
{
  NGL_ASSERT(pTree); // no chance to happen
  cpt++;
  nuiRect rect(0,0,0,0);
  nuiWidgetPtr pWidget;
  nuiRect WidgetRect;

  uint32 depth = cpt;

  uint32 count = pTree->GetChildrenCount();
  if (count <= 0)
    return;

  bool HasNonEmpty = false;

  for (uint32 i = 0; i < count; i++)
  {
    nuiTreeNode* pNode = dynamic_cast<nuiTreeNode*>(pTree->GetChild(i));
    NGL_ASSERT(pNode);
    pWidget = pNode->GetElement();
    NGL_ASSERT(pWidget);
    WidgetRect = pWidget->GetIdealRect();
    rect.SetSize(MAX(rect.GetWidth(), WidgetRect.GetWidth()), rect.GetHeight() + WidgetRect.GetHeight());
    if (!pNode->IsEmpty())
    {
      HasNonEmpty = true;
    }
    if (pNode->IsOpened())
    {
      if (mRects.size() <= depth + 1) // ensure that there is a rect for the next node
      {
        nuiMenuRect* pMenuRect = new nuiMenuRect(this, cpt+1);
        mRects.push_back(pMenuRect);
        mPopupTreeSink.Connect(pMenuRect->mpSBar->ValueChanged, &nuiPopupMenu::OnScrollBarChange, pMenuRect);
      }
      mRects[depth+1]->mpFromNode = pNode;
      CalcTreeSize(rRect, pNode, cpt);
    }
  }
  if (HasNonEmpty)
  {
    mRects[depth]->mHasNonEmpty = true;
    rect.SetSize(rect.GetWidth() + NUI_POPUP_TREE_HANDLE_SIZE * 2, rect.GetHeight());
  }
  else
  {
    mRects[depth]->mHasNonEmpty = false;
  }

  mRects[depth]->mRect = rect;
  NGL_ASSERT(mRects.size() >= depth+1);
  rRect.SetSize(rect.GetWidth()+rRect.GetWidth(), rect.GetHeight()+rRect.GetHeight());
}

void nuiContainer::InternalSetLayout(const nuiRect& rect, bool PositionChanged, bool SizeChanged)
{
  CheckValid();
  if (mNeedSelfLayout || SizeChanged)
  {
    mInSetRect = true;
    SetRect(rect);
    mInSetRect = false;
    Invalidate();
  }
  else
  {
    // Is this case the widget have just been moved inside its parent. No need to re layout it, only change the rect...
    mRect = rect;
    
    if (mNeedLayout)
    {
      // The children need to be re layed out (at least one of them!).
      nuiContainer::IteratorPtr pIt = GetFirstChild(false);
      do
      {
        nuiWidgetPtr pItem = pIt->GetWidget();
        if (pItem)
        {
          // The rect of each child doesn't change BUT we still ask for its ideal rect.
          nuiRect rect(pItem->GetBorderedRect());
          nuiRect ideal(pItem->GetIdealRect());
          
          if (pItem->HasUserPos()) 	 
          { 	 
            rect = ideal; 	 
          } 	 
          else if (pItem->HasUserSize())
          {
            rect.SetSize(ideal.GetWidth(), ideal.GetHeight());
          }
          else
          {
            // Set the widget to the size of the parent
          }
          
          pItem->SetLayout(rect);
        }
      } while (GetNextChild(pIt));
      delete pIt;
      
    }
  }
  
  //#TEST:
#ifdef NUI_CHECK_LAYOUTS
  IteratorPtr pIt;
  for (pIt = GetFirstChild(); pIt && pIt->IsValid(); GetNextChild(pIt))
  {
    nuiWidgetPtr pItem = pIt->GetWidget();
    if (pItem->IsVisible())
    {
      NGL_ASSERT(!pItem->GetNeedLayout());
    }
  }
  delete pIt;
  //#TEST end
#endif
}