text: //-----------------------------------------------------------------------------
  // Copyright (c) 2013 GarageGames, LLC
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to
  // deal in the Software without restriction, including without limitation the
  // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  // sell copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  // IN THE SOFTWARE.
  //-----------------------------------------------------------------------------
  
  #include "console/console.h"
  #include "graphics/dgl.h"
  #include "gui/guiCanvas.h"
  #include "gui/buttons/guiRadioCtrl.h"
  #include "console/consoleTypes.h"
  #include "gui/guiDefaultControlRender.h"
  
  //---------------------------------------------------------------------------
  IMPLEMENT_CONOBJECT(GuiRadioCtrl);
  
  GuiRadioCtrl::GuiRadioCtrl()
  {
  }
  
  
  void GuiRadioCtrl::initPersistFields()
  {
  	Parent::initPersistFields();
  	addField("groupNum", TypeS32, Offset(mRadioGroup, GuiRadioCtrl));
  }
  
  void GuiRadioCtrl::renderInnerControl(RectI &boxRect, const GuiControlState currentState)
  {
  	U8 stateIndex = currentState;
  
  	if (mProfile->usesAssetRendering(currentState) || mProfile->usesBitmapRendering(currentState))
  	{
  		renderUniversalRect(boxRect, mProfile, currentState);
  	}
  	else 
  	{
  		S32 radius = boxRect.extent.x;
  		if (boxRect.extent.y < radius)
  		{
  			radius = boxRect.extent.y;
  		}
  		radius = (S32)round(radius / 2);
  		Point2I center = Point2I(boxRect.point.x + (boxRect.extent.x / 2), boxRect.point.y + (boxRect.extent.y / 2));
  		renderBorderedCircle(center, radius, mProfile, currentState);
  	}
  }
  
  void GuiRadioCtrl::onAction()
  {
  	if (!mActive)
  		return;
  
  	mStateOn = false;
  
  	Parent::onAction();
  
  	messageSiblings(mRadioGroup);
  }
  
  void GuiRadioCtrl::setStateOn(bool bStateOn)
  {
  	if (!mActive)
  		return;
  
  	mStateOn = true;
  	messageSiblings(mRadioGroup);
  
  	setUpdate();
  }
  
  void GuiRadioCtrl::onMessage(GuiControl *sender, S32 msg)
  {
  	Parent::onMessage(sender, msg);
  	if (mRadioGroup == msg)
  	{
  		mStateOn = (sender == this);
  		setUpdate();
  	}
  }