Method onRenderCell

Engine/source/gui/controls/guiTreeViewCtrl.cpp:3971–4252

//-----------------------------------------------------------------------------

void GuiTreeViewCtrl::onRenderCell(Point2I offset, Point2I cell, bool, bool )
{
   if( !mVisibleItems.size() )
      return;

   // Do some sanity checking and data retrieval.
   AssertFatal(cell.y < mVisibleItems.size(), "GuiTreeViewCtrl::onRenderCell: invalid cell");
   Item * item = mVisibleItems[cell.y];

   // If there's no object, deal with it.
   if(item->isInspectorData())
      if(!item->getObject())
         return;

   RectI drawRect( offset, mCellSize );
   GFXDrawUtil *drawer = GFX->getDrawUtil();
   drawer->clearBitmapModulation();

   FrameAllocatorMarker txtBuff;
   
   // Ok, we have the item. There are a few possibilities at this point:
   //    - We need to draw inheritance lines and a treeview-chosen icon
   //       OR
   //    - We have to draw an item-dependent icon
   //    - If we're mouseover, we have to highlight it.
   //
   //    - We have to draw the text for the item
   //       - Taking into account various mouseover states
   //       - Taking into account the value (set or not)
   //       - If it's an inspector data, we have to do some custom rendering
   //       - ADDED: If it is being renamed, we also have custom rendering.

   // Ok, first draw the tab and icon.

   // Do we draw the tree lines?
   if( mFlags.test(ShowTreeLines) )
   {
      drawRect.point.x += ( mTabSize * item->mTabLevel );
      Item* parent = item->mParent;
      for ( S32 i = item->mTabLevel; ( parent && i > 0 ); i-- )
      {
         drawRect.point.x -= mTabSize;
         if ( parent->mNext )
            drawer->drawBitmapSR( mProfile->mTextureObject, drawRect.point, mProfile->mBitmapArrayRects[BmpLine] );

         parent = parent->mParent;
      }
   }

   // Now, the icon...
   drawRect.point.x = offset.x + mTabSize * item->mTabLevel;

   // First, draw the rollover glow, if it's an inner node.
   if ( item->isParent() && item->mState.test( Item::MouseOverBmp ) )
      drawer->drawBitmapSR( mProfile->mTextureObject, drawRect.point, mProfile->mBitmapArrayRects[BmpGlow] );

   // Now, do we draw a treeview-selected item or an item dependent one?
   S32 newOffset = 0; // This is stored so we can render glow, then update render pos.