OMXOverlayText.h

#pragma once

/*
 *      Copyright (C) 2005-2008 Team XBMC
 *      http://www.xbmc.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with XBMC; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

#include "OMXOverlay.h"
#include <string.h>

class COMXOverlayText : public COMXOverlay
{
public:

  enum ElementType
  {
    ELEMENT_TYPE_NONE     = -1,
    ELEMENT_TYPE_TEXT     = 1,
    ELEMENT_TYPE_PROPERTY = 2
  };

  class CElement
  {
  public:
    CElement(ElementType type)
    {
      m_type = type;
    }

    virtual ~CElement()
    {
    }

    bool IsElementType(ElementType type) { return (type == m_type); }

    CElement* pNext;
    ElementType m_type;
  };

  class CElementText : public CElement
  {
  public:
    CElementText(const char* strText, int size = -1) : CElement(ELEMENT_TYPE_TEXT)
    {
      if(size == -1)
        m_text = strdup(strText);
      else
      {
        m_text = (char*)malloc(size+1);
        memcpy(m_text, strText, size);
        m_text[size] = '\0';
      }
    }

    virtual ~CElementText()
    {
      if (m_text) free(m_text);
    }

    char* m_text;
  };

  class CElementProperty : public CElement
  {
    CElementProperty() : CElement(ELEMENT_TYPE_PROPERTY)
    {
      bItalic = false;
      bBold = false;
    }

  public:
    bool bItalic;
    bool bBold;
    // color
  };

  COMXOverlayText() : COMXOverlay(OMXOVERLAY_TYPE_TEXT)
  {
    m_pHead = NULL;
    m_pEnd = NULL;
  }

  virtual ~COMXOverlayText()
  {
    CElement* pTemp;
    while (m_pHead)
    {
      pTemp = m_pHead;
      m_pHead = m_pHead->pNext;
      delete pTemp;
    }
  }

  void AddElement(COMXOverlayText::CElement* pElement)
  {
    pElement->pNext = NULL;

    if (!m_pHead)
    { // first element - set our head to this element, and update the end to the new element
      m_pHead = pElement;
      m_pEnd = pElement;
    }
    else
    { // extra element - add to the end and update the end to the new element
      m_pEnd->pNext = pElement;
      m_pEnd = pElement;
    }
  }

  CElement* m_pHead;
  CElement* m_pEnd;
};