Method onAction

Engine/source/gui/controls/guiPopUpCtrlEx.cpp:1388–1539

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void GuiPopUpMenuCtrlEx::onAction()
{
   if (!mActive)
      return;

   GuiControl *canCtrl = getParent();

   addChildren();

   GuiCanvas *root = getRoot();
   Point2I windowExt = root->getExtent();

   mBackground->resize( Point2I(0,0), root->getExtent() );
   
   S32 textWidth = 0, width = getWidth();
   //const S32 menuSpace = 5; //  Removed as no longer used.
   const S32 textSpace = 2;
   bool setScroll = false;

   for ( U32 i = 0; i < mEntries.size(); ++i )
      if ( S32(mProfile->mFont->getStrWidth( mEntries[i].buf )) > textWidth )
         textWidth = mProfile->mFont->getStrWidth( mEntries[i].buf );

   //if(textWidth > getWidth())
   S32 sbWidth = mSc->getControlProfile()->mBorderThickness * 2 + mSc->scrollBarThickness(); //  Calculate the scroll bar width
   if ( textWidth > ( getWidth() - sbWidth-mProfile->mTextOffset.x - mSc->getChildMargin().x * 2 ) ) //  The text draw area to test against is the width of the drop-down minus the scroll bar width, the text margin and the scroll bar child margins.
   {
      //textWidth +=10;
      textWidth +=sbWidth + mProfile->mTextOffset.x + mSc->getChildMargin().x * 2; //  The new width is the width of the text plus the scroll bar width plus the text margin size plus the scroll bar child margins.
      width = textWidth;

      //  If a child margin is not defined for the scroll control, let's add
      //      some space between the text and scroll control for readability
      if(mSc->getChildMargin().x == 0)
         width += textSpace;
   }

   //mTl->setCellSize(Point2I(width, mFont->getHeight()+3));
   mTl->setCellSize(Point2I(width, mProfile->mFont->getHeight() + textSpace)); //  Modified the above line to use textSpace rather than the '3' as this is what is used below.

   for ( U32 j = 0; j < mEntries.size(); ++j )
      mTl->addEntry( mEntries[j].id, mEntries[j].buf );

   if ( mSelIndex >= 0 )
      mTl->setSelectedCell( Point2I( 0, mSelIndex ) );

   Point2I pointInGC = canCtrl->localToGlobalCoord( getPosition() );
   Point2I scrollPoint( pointInGC.x, pointInGC.y + getHeight() ); 

   //Calc max Y distance, so Scroll Ctrl will fit on window 
   //S32 maxYdis = windowExt.y - pointInGC.y - getHeight() - menuSpace; 
   S32 sbBorder = mSc->getControlProfile()->mBorderThickness * 2 + mSc->getChildMargin().y * 2; //  Added to take into account the border thickness and the margin of the child controls of the scroll control when figuring out the size of the contained text list control
   S32 maxYdis = windowExt.y - pointInGC.y - getHeight() - sbBorder; // - menuSpace; //  Need to remove the border thickness from the contained control maximum extent and got rid of the 'menuspace' variable

   //If scroll bars need to be added
   mRevNum = 0; //  Added here rather than within the following 'if' statements.
   if ( maxYdis < mTl->getHeight() + sbBorder ) //  Instead of adding sbBorder, it was: 'textSpace'
   {