/*
 *      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 "system.h"
#include "GUIWindow.h"
#include "GUIWindowManager.h"
#include "Key.h"
#include "LocalizeStrings.h"
#include "Settings.h"
#include "GUIControlFactory.h"
#include "GUIControlGroup.h"
#include "GUIControlProfiler.h"
#ifdef PRE_SKIN_VERSION_9_10_COMPATIBILITY
#include "GUIEditControl.h"
#endif

#include "addons/Skin.h"
#include "utils/GUIInfoManager.h"
#include "utils/log.h"
#include "utils/SingleLock.h"
#include "utils/TimeUtils.h"
#include "ButtonTranslator.h"
#include "XMLUtils.h"

#ifdef HAS_PERFORMANCE_SAMPLE
#include "utils/PerformanceSample.h"
#endif

using namespace std;

CGUIWindow::CGUIWindow(int id, const CStdString &xmlFile)
{
  SetID(id);
  SetProperty("xmlfile", xmlFile);
  m_idRange = 1;
  m_lastControlID = 0;
  m_bRelativeCoords = false;
  m_overlayState = OVERLAY_STATE_PARENT_WINDOW;   // Use parent or previous window's state
  m_coordsRes = g_guiSettings.m_LookAndFeelResolution;
  m_isDialog = false;
  m_needsScaling = true;
  m_windowLoaded = false;
  m_loadOnDemand = true;
  m_renderOrder = 0;
  m_dynamicResourceAlloc = true;
  m_previousWindow = WINDOW_INVALID;
  m_animationsEnabled = true;
  m_manualRunActions = false;
  m_exclusiveMouseControl = 0;
  m_clearBackground = 0xff000000; // opaque black -> always clear
}

CGUIWindow::~CGUIWindow(void)
{}

bool CGUIWindow::Load(const CStdString& strFileName, bool bContainsPath)
{
#ifdef HAS_PERFORMANCE_SAMPLE
  CPerformanceSample aSample("WindowLoad-" + strFileName, true);
#endif

  if (m_windowLoaded)
    return true;      // no point loading if it's already there

#ifdef _DEBUG
  int64_t start;
  start = CurrentHostCounter();
#endif
  RESOLUTION resToUse = RES_INVALID;
  CLog::Log(LOGINFO, "Loading skin file: %s", strFileName.c_str());
  
  // Find appropriate skin folder + resolution to load from
  CStdString strPath;
  CStdString strLowerPath;
  if (bContainsPath)
    strPath = strFileName;
  else
  {
    // FIXME: strLowerPath needs to eventually go since resToUse can get incorrectly overridden
    strLowerPath =  g_SkinInfo->GetSkinPath(CStdString(strFileName).ToLower(), &resToUse);
    strPath = g_SkinInfo->GetSkinPath(strFileName, &resToUse);
  }

  if (!bContainsPath)
    m_coordsRes = resToUse;

  bool ret = LoadXML(strPath.c_str(), strLowerPath.c_str());

#ifdef _DEBUG
  int64_t end, freq;
  end = CurrentHostCounter();
  freq = CurrentHostFrequency();
  CLog::Log(LOGDEBUG,"Load %s: %.2fms", GetProperty("xmlfile").c_str(), 1000.f * (end - start) / freq);
#endif
  return ret;
}

bool CGUIWindow::LoadXML(const CStdString &strPath, const CStdString &strLowerPath)
{
  TiXmlDocument xmlDoc;
  if ( !xmlDoc.LoadFile(strPath) && !xmlDoc.LoadFile(CStdString(strPath).ToLower()) && !xmlDoc.LoadFile(strLowerPath))
  {
    CLog::Log(LOGERROR, "unable to load:%s, Line %d\n%s", strPath.c_str(), xmlDoc.ErrorRow(), xmlDoc.ErrorDesc());
    SetID(WINDOW_INVALID);
    return false;
  }

  return Load(xmlDoc);
}

bool CGUIWindow::Load(TiXmlDocument &xmlDoc)
{
  TiXmlElement* pRootElement = xmlDoc.RootElement();
  if (strcmpi(pRootElement->Value(), "window"))
  {
    CLog::Log(LOGERROR, "file : XML file doesnt contain <window>");
    return false;
  }

  // set the scaling resolution so that any control creation or initialisation can
  // be done with respect to the correct aspect ratio
  g_graphicsContext.SetScalingResolution(m_coordsRes, m_needsScaling);

  // Resolve any includes that may be present
  g_SkinInfo->ResolveIncludes(pRootElement);
  // now load in the skin file
  SetDefaults();

  CGUIControlFactory::GetInfoColor(pRootElement, "backgroundcolor", m_clearBackground);
  CGUIControlFactory::GetMultipleString(pRootElement, "onload", m_loadActions);
  CGUIControlFactory::GetMultipleString(pRootElement, "onunload", m_unloadActions);
  CGUIControlFactory::GetHitRect(pRootElement, m_hitRect);

  TiXmlElement *pChild = pRootElement->FirstChildElement();
  while (pChild)
  {
    CStdString strValue = pChild->Value();
    if (strValue == "type" && pChild->FirstChild())
    {
      // if we have are a window type (ie not a dialog), and we have <type>dialog</type>
      // then make this window act like a dialog
      if (!IsDialog() && strcmpi(pChild->FirstChild()->Value(), "dialog") == 0)
        m_isDialog = true;
    }
    else if (strValue == "previouswindow" && pChild->FirstChild())
    {
      m_previousWindow = CButtonTranslator::TranslateWindow(pChild->FirstChild()->Value());
    }
    else if (strValue == "defaultcontrol" && pChild->FirstChild())
    {
      const char *always = pChild->Attribute("always");
      if (always && strcmpi(always, "true") == 0)
        m_defaultAlways = true;
      m_defaultControl = atoi(pChild->FirstChild()->Value());
    }
    else if (strValue == "visible" && pChild->FirstChild())
    {
      CGUIControlFactory::GetConditionalVisibility(pRootElement, m_visibleCondition);
    }
    else if (strValue == "animation" && pChild->FirstChild())
    {
      CRect rect(0, 0, (float)g_settings.m_ResInfo[m_coordsRes].iWidth, (float)g_settings.m_ResInfo[m_coordsRes].iHeight);
      CAnimation anim;
      anim.Create(pChild, rect);
      m_animations.push_back(anim);
    }
    else if (strValue == "zorder" && pChild->FirstChild())
    {
      m_renderOrder = atoi(pChild->FirstChild()->Value());
    }
    else if (strValue == "coordinates")
    {
      // resolve any includes within coordinates tag (such as multiple origin includes)
      g_SkinInfo->ResolveIncludes(pChild);
      TiXmlNode* pSystem = pChild->FirstChild("system");
      if (pSystem)
      {
        int iCoordinateSystem = atoi(pSystem->FirstChild()->Value());
        m_bRelativeCoords = (iCoordinateSystem == 1);
      }

      CGUIControlFactory::GetFloat(pChild, "posx", m_posX);
      CGUIControlFactory::GetFloat(pChild, "posy", m_posY);

      TiXmlElement *originElement = pChild->FirstChildElement("origin");
      while (originElement)
      {
        COrigin origin;
        g_SkinInfo->ResolveConstant(originElement->Attribute("x"), origin.x);
        g_SkinInfo->ResolveConstant(originElement->Attribute("y"), origin.y);
        if (originElement->FirstChild())
          origin.condition = g_infoManager.TranslateString(originElement->FirstChild()->Value());
        m_origins.push_back(origin);
        originElement = originElement->NextSiblingElement("origin");
      }
    }
    else if (strValue == "camera")
    { // z is fixed
      g_SkinInfo->ResolveConstant(pChild->Attribute("x"), m_camera.x);
      g_SkinInfo->ResolveConstant(pChild->Attribute("y"), m_camera.y);
      m_hasCamera = true;
    }
    else if (strValue == "controls")
    {
      // resolve any includes within controls tag (such as whole <control> includes)
      g_SkinInfo->ResolveIncludes(pChild);

      TiXmlElement *pControl = pChild->FirstChildElement();
      while (pControl)
      {
        if (strcmpi(pControl->Value(), "control") == 0)
        {
          LoadControl(pControl, NULL);
        }
        pControl = pControl->NextSiblingElement();
      }
    }
    else if (strValue == "allowoverlay")
    {
      bool overlay = false;
      if (XMLUtils::GetBoolean(pRootElement, "allowoverlay", overlay))
        m_overlayState = overlay ? OVERLAY_STATE_SHOWN : OVERLAY_STATE_HIDDEN;
    }

    pChild = pChild->NextSiblingElement();
  }
  LoadAdditionalTags(pRootElement);

  m_windowLoaded = true;
  OnWindowLoaded();
  return true;
}

void CGUIWindow::LoadControl(TiXmlElement* pControl, CGUIControlGroup *pGroup)
{
  // get control type
  CGUIControlFactory factory;

  CRect rect(0, 0, (float)g_settings.m_ResInfo[m_coordsRes].iWidth, (float)g_settings.m_ResInfo[m_coordsRes].iHeight);
  if (pGroup)
  {
    rect.x1 = pGroup->GetXPosition();
    rect.y1 = pGroup->GetYPosition();
    rect.x2 = rect.x1 + pGroup->GetWidth();
    rect.y2 = rect.y1 + pGroup->GetHeight();
  }
  CGUIControl* pGUIControl = factory.Create(GetID(), rect, pControl);
  if (pGUIControl)
  {
    float maxX = pGUIControl->GetXPosition() + pGUIControl->GetWidth();
    if (maxX > m_width)
    {
      m_width = maxX;
    }

    float maxY = pGUIControl->GetYPosition() + pGUIControl->GetHeight();
    if (maxY > m_height)
    {
      m_height = maxY;
    }
    // if we are in a group, add to the group, else add to our window
    if (pGroup)
      pGroup->AddControl(pGUIControl);
    else
      AddControl(pGUIControl);
    // if the new control is a group, then add it's controls
    if (pGUIControl->IsGroup())
    {
      TiXmlElement *pSubControl = pControl->FirstChildElement("control");
      while (pSubControl)
      {
        LoadControl(pSubControl, (CGUIControlGroup *)pGUIControl);
        pSubControl = pSubControl->NextSiblingElement("control");
      }
    }
  }
}

void CGUIWindow::OnWindowLoaded()
{
  DynamicResourceAlloc(true);
}

void CGUIWindow::CenterWindow()
{
  if (m_bRelativeCoords)
  {
    m_posX = (g_settings.m_ResInfo[m_coordsRes].iWidth - GetWidth()) / 2;
    m_posY = (g_settings.m_ResInfo[m_coordsRes].iHeight - GetHeight()) / 2;
  }
}

void CGUIWindow::Render()
{
  // If we're rendering from a different thread, then we should wait for the main
  // app thread to finish AllocResources(), as dynamic resources (images in particular)
  // will try and be allocated from 2 different threads, which causes nasty things
  // to occur.
  if (!m_bAllocated) return;

  g_graphicsContext.SetRenderingResolution(m_coordsRes, m_needsScaling);

  m_renderTime = CTimeUtils::GetFrameTime();
  // render our window animation - returns false if it needs to stop rendering
  if (!RenderAnimation(m_renderTime))
    return;

  if (m_hasCamera)
    g_graphicsContext.SetCameraPosition(m_camera);

  CGUIControlGroup::Render();

  if (CGUIControlProfiler::IsRunning()) CGUIControlProfiler::Instance().EndFrame();
}

void CGUIWindow::Close(bool forceClose)
{
  CLog::Log(LOGERROR,"%s - should never be called on the base class!", __FUNCTION__);
}

bool CGUIWindow::OnAction(const CAction &action)
{
  if (action.IsMouse() || action.IsGesture())
    return EVENT_RESULT_UNHANDLED != OnMouseAction(action);

  CGUIControl *focusedControl = GetFocusedControl();
  if (focusedControl)
    return focusedControl->OnAction(action);

  // no control has focus?
  // set focus to the default control then
  CGUIMessage msg(GUI_MSG_SETFOCUS, GetID(), m_defaultControl);
  OnMessage(msg);
  return false;
}

CPoint CGUIWindow::GetPosition() const
{
  for (unsigned int i = 0; i < m_origins.size(); i++)
  {
    // no condition implies true
    if (!m_origins[i].condition || g_infoManager.GetBool(m_origins[i].condition, GetID()))
    { // found origin
      return CPoint(m_origins[i].x, m_origins[i].y);
    }
  }
  return CGUIControlGroup::GetPosition();
}

// OnMouseAction - called by OnAction()
EVENT_RESULT CGUIWindow::OnMouseAction(const CAction &action)
{
  g_graphicsContext.SetScalingResolution(m_coordsRes, m_needsScaling);
  CPoint mousePoint(action.GetAmount(0), action.GetAmount(1));
  g_graphicsContext.InvertFinalCoords(mousePoint.x, mousePoint.y);

  // create the mouse event
  CMouseEvent event(action.GetID(), action.GetHoldTime(), action.GetAmount(2), action.GetAmount(3));
  if (m_exclusiveMouseControl)
  {
    CGUIControl *child = (CGUIControl *)GetControl(m_exclusiveMouseControl);
    if (child)
    {
      CPoint renderPos = child->GetRenderPosition() - CPoint(child->GetXPosition(), child->GetYPosition());
      return child->OnMouseEvent(mousePoint - renderPos, event);
    }
  }

  UnfocusFromPoint(mousePoint);

  return SendMouseEvent(mousePoint, event);
}

EVENT_RESULT CGUIWindow::OnMouseEvent(const CPoint &point, const CMouseEvent &event)
{
  if (event.m_id == ACTION_MOUSE_RIGHT_CLICK)
  { // no control found to absorb this click - go to previous menu
    return OnAction(CAction(ACTION_PREVIOUS_MENU)) ? EVENT_RESULT_HANDLED : EVENT_RESULT_UNHANDLED;
  }
  return EVENT_RESULT_UNHANDLED;
}

/// \brief Called on window open.
///  * Restores the control state(s)
///  * Sets initial visibility of controls
///  * Queue WindowOpen animation
///  * Set overlay state
/// Override this function and do any window-specific initialisation such
/// as filling control contents and setting control focus before
/// calling the base method.
void CGUIWindow::OnInitWindow()
{
  // set our rendered state
  m_hasRendered = false;
  ResetAnimations();  // we need to reset our animations as those windows that don't dynamically allocate
                      // need their anims reset. An alternative solution is turning off all non-dynamic
                      // allocation (which in some respects may be nicer, but it kills hdd spindown and the like)

  // set our initial control visibility before restoring control state and
  // focusing the default control, and again afterward to make sure that
  // any controls that depend on the state of the focused control (and or on
  // control states) are active.
  SetInitialVisibility();
  RestoreControlStates();
  SetInitialVisibility();
  QueueAnimation(ANIM_TYPE_WINDOW_OPEN);
  g_windowManager.ShowOverlay(m_overlayState);

  if (!m_manualRunActions)
  {
    RunLoadActions();
  }
}

// Called on window close.
//  * Executes the window close animation(s)
//  * Saves control state(s)
// Override this function and call the base class before doing any dynamic memory freeing
void CGUIWindow::OnDeinitWindow(int nextWindowID)
{
  if (!m_manualRunActions)
  {
    RunUnloadActions();
  }

  if (nextWindowID != WINDOW_FULLSCREEN_VIDEO)
  {
    // Dialog animations are handled in Close() rather than here
    if (HasAnimation(ANIM_TYPE_WINDOW_CLOSE) && !IsDialog() && IsActive())
    {
      // Perform the window out effect
      QueueAnimation(ANIM_TYPE_WINDOW_CLOSE);
      while (IsAnimating(ANIM_TYPE_WINDOW_CLOSE))
      {
        g_windowManager.Process(true);
      }
    }
  }
  SaveControlStates();
}

bool CGUIWindow::OnMessage(CGUIMessage& message)
{
  switch ( message.GetMessage() )
  {
  case GUI_MSG_WINDOW_INIT:
    {
      CLog::Log(LOGDEBUG, "------ Window Init (%s) ------", GetProperty("xmlfile").c_str());
      if (m_dynamicResourceAlloc || !m_bAllocated) AllocResources();
      OnInitWindow();
      return true;
    }
    break;

  case GUI_MSG_WINDOW_DEINIT:
    {
      CLog::Log(LOGDEBUG, "------ Window Deinit (%s) ------", GetProperty("xmlfile").c_str());
      OnDeinitWindow(message.GetParam1());
      // now free the window
      if (m_dynamicResourceAlloc) FreeResources();
      return true;
    }
    break;

  case GUI_MSG_CLICKED:
    {
      // a specific control was clicked
      CLICK_EVENT clickEvent = m_mapClickEvents[ message.GetSenderId() ];

      // determine if there are any handlers for this event
      if (clickEvent.HasAHandler())
      {
        // fire the message to all handlers
        clickEvent.Fire(message);
      }
      break;
    }

  case GUI_MSG_SELCHANGED:
    {
      // a selection within a specific control has changed
      SELECTED_EVENT selectedEvent = m_mapSelectedEvents[ message.GetSenderId() ];

      // determine if there are any handlers for this event
      if (selectedEvent.HasAHandler())
      {
        // fire the message to all handlers
        selectedEvent.Fire(message);
      }
      break;
    }
  case GUI_MSG_FOCUSED:
    { // a control has been focused
      if (HasID(message.GetSenderId()))
      {
        m_focusedControl = message.GetControlId();
        return true;
      }
      break;
    }
  case GUI_MSG_LOSTFOCUS:
    {
      // nothing to do at the window level when we lose focus
      return true;
    }
  case GUI_MSG_MOVE:
    {
      if (HasID(message.GetSenderId()))
        return OnMove(message.GetControlId(), message.GetParam1());
      break;
    }
  case GUI_MSG_SETFOCUS:
    {
//      CLog::Log(LOGDEBUG,"set focus to control:%i window:%i (%i)\n", message.GetControlId(),message.GetSenderId(), GetID());
      if ( message.GetControlId() )
      {
        // first unfocus the current control
        CGUIControl *control = GetFocusedControl();
        if (control)
        {
          CGUIMessage msgLostFocus(GUI_MSG_LOSTFOCUS, GetID(), control->GetID(), message.GetControlId());
          control->OnMessage(msgLostFocus);
        }

        // get the control to focus
        CGUIControl* pFocusedControl = GetFirstFocusableControl(message.GetControlId());
        if (!pFocusedControl) pFocusedControl = (CGUIControl *)GetControl(message.GetControlId());

        // and focus it
        if (pFocusedControl)
          return pFocusedControl->OnMessage(message);
      }
      return true;
    }
    break;
  case GUI_MSG_EXCLUSIVE_MOUSE:
    {
      m_exclusiveMouseControl = message.GetSenderId();
      return true;
    }
    break;
  case GUI_MSG_GESTURE_NOTIFY:
    {
      CAction action(ACTION_GESTURE_NOTIFY, 0, (float)message.GetParam1(), (float)message.GetParam2(), 0, 0);
      EVENT_RESULT result = OnMouseAction(action);
      message.SetParam1(result);
      return result != EVENT_RESULT_UNHANDLED;
    }
  case GUI_MSG_NOTIFY_ALL:
    {
      // only process those notifications that come from this window, or those intended for every window
      if (HasID(message.GetSenderId()) || !message.GetSenderId())
      {
        if (message.GetParam1() == GUI_MSG_PAGE_CHANGE ||
            message.GetParam1() == GUI_MSG_REFRESH_THUMBS ||
            message.GetParam1() == GUI_MSG_REFRESH_LIST)
        { // alter the message accordingly, and send to all controls
          for (iControls it = m_children.begin(); it != m_children.end(); ++it)
          {
            CGUIControl *control = *it;
            CGUIMessage msg(message.GetParam1(), message.GetControlId(), control->GetID(), message.GetParam2());
            control->OnMessage(msg);
          }
        }
        if (message.GetParam1() == GUI_MSG_WINDOW_RESIZE)
        {
          // invalidate controls to get them to recalculate sizing information
          SetInvalid();
          return true;
        }
      }
    }
    break;
  }

  return SendControlMessage(message);
}

void CGUIWindow::AllocResources(bool forceLoad /*= FALSE */)
{
  CSingleLock lock(g_graphicsContext);

#ifdef _DEBUG
  int64_t start;
  start = CurrentHostCounter();
#endif
  // load skin xml fil
  CStdString xmlFile = GetProperty("xmlfile");
  bool bHasPath=false;
  if (xmlFile.Find("\\") > -1 || xmlFile.Find("/") > -1 )
    bHasPath = true;
  if (xmlFile.size() && (forceLoad || m_loadOnDemand || !m_windowLoaded))
    Load(xmlFile,bHasPath);

  int64_t slend;
  slend = CurrentHostCounter();

  // and now allocate resources
  CGUIControlGroup::AllocResources();

#ifdef _DEBUG
  int64_t end, freq;
  end = CurrentHostCounter();
  freq = CurrentHostFrequency();
  CLog::Log(LOGDEBUG,"Alloc resources: %.2fms (%.2f ms skin load)", 1000.f * (end - start) / freq, 1000.f * (slend - start) / freq);
#endif
  m_bAllocated = true;
}

void CGUIWindow::FreeResources(bool forceUnload /*= FALSE */)
{
  m_bAllocated = false;
  CGUIControlGroup::FreeResources();
  //g_TextureManager.Dump();
  // unload the skin
  if (m_loadOnDemand || forceUnload) ClearAll();
}

void CGUIWindow::DynamicResourceAlloc(bool bOnOff)
{
  m_dynamicResourceAlloc = bOnOff;
  CGUIControlGroup::DynamicResourceAlloc(bOnOff);
}

void CGUIWindow::ClearAll()
{
  OnWindowUnload();
  CGUIControlGroup::ClearAll();
  m_windowLoaded = false;
  m_dynamicResourceAlloc = true;
}

bool CGUIWindow::Initialize()
{
  return Load(GetProperty("xmlfile"));
}

void CGUIWindow::SetInitialVisibility()
{
  // reset our info manager caches
  g_infoManager.ResetCache();
  CGUIControlGroup::SetInitialVisibility();
}

bool CGUIWindow::IsActive() const
{
  return g_windowManager.IsWindowActive(GetID());
}

bool CGUIWindow::CheckAnimation(ANIMATION_TYPE animType)
{
  // special cases first
  if (animType == ANIM_TYPE_WINDOW_CLOSE)
  {
    if (!m_bAllocated || !m_hasRendered) // can't render an animation if we aren't allocated or haven't rendered
      return false;
    // make sure we update our visibility prior to queuing the window close anim
    for (unsigned int i = 0; i < m_children.size(); i++)
      m_children[i]->UpdateVisibility();
  }
  return true;
}

bool CGUIWindow::IsAnimating(ANIMATION_TYPE animType)
{
  if (!m_animationsEnabled)
    return false;
  return CGUIControlGroup::IsAnimating(animType);
}

bool CGUIWindow::RenderAnimation(unsigned int time)
{
  g_graphicsContext.ResetWindowTransform();
  if (m_animationsEnabled)
    CGUIControlGroup::Animate(time);
  else
    m_transform.Reset();
  return true;
}

void CGUIWindow::DisableAnimations()
{
  m_animationsEnabled = false;
}

// returns true if the control group with id groupID has controlID as
// its focused control
bool CGUIWindow::ControlGroupHasFocus(int groupID, int controlID)
{
  // 1.  Run through and get control with groupID (assume unique)
  // 2.  Get it's selected item.
  CGUIControl *group = GetFirstFocusableControl(groupID);
  if (!group) group = (CGUIControl *)GetControl(groupID);

  if (group && group->IsGroup())
  {
    if (controlID == 0)
    { // just want to know if the group is focused
      return group->HasFocus();
    }
    else
    {
      CGUIMessage message(GUI_MSG_ITEM_SELECTED, GetID(), group->GetID());
      group->OnMessage(message);
      return (controlID == (int) message.GetParam1());
    }
  }
  return false;
}

void CGUIWindow::SaveControlStates()
{
  ResetControlStates();
  if (!m_defaultAlways)
    m_lastControlID = GetFocusedControlID();
  for (iControls it = m_children.begin(); it != m_children.end(); ++it)
    (*it)->SaveStates(m_controlStates);
}

void CGUIWindow::RestoreControlStates()
{
  for (vector<CControlState>::iterator it = m_controlStates.begin(); it != m_controlStates.end(); ++it)
  {
    CGUIMessage message(GUI_MSG_ITEM_SELECT, GetID(), (*it).m_id, (*it).m_data);
    OnMessage(message);
  }
  int focusControl = (!m_defaultAlways && m_lastControlID) ? m_lastControlID : m_defaultControl;
  SET_CONTROL_FOCUS(focusControl, 0);
}

void CGUIWindow::ResetControlStates()
{
  m_lastControlID = 0;
  m_focusedControl = 0;
  m_controlStates.clear();
}

bool CGUIWindow::OnMove(int fromControl, int moveAction)
{
  const CGUIControl *control = GetFirstFocusableControl(fromControl);
  if (!control) control = GetControl(fromControl);
  if (!control)
  { // no current control??
    CLog::Log(LOGERROR, "Unable to find control %i in window %u",
              fromControl, GetID());
    return false;
  }
  vector<int> moveHistory;
  int nextControl = fromControl;
  while (control)
  { // grab the next control direction
    moveHistory.push_back(nextControl);
    nextControl = control->GetNextControl(moveAction);
    // check our history - if the nextControl is in it, we can't focus it
    for (unsigned int i = 0; i < moveHistory.size(); i++)
    {
      if (nextControl == moveHistory[i])
        return false; // no control to focus so do nothing
    }
    control = GetFirstFocusableControl(nextControl);
    if (control)
      break;  // found a focusable control
    control = GetControl(nextControl); // grab the next control and try again
  }
  if (!control)
    return false;   // no control to focus
  // if we get here we have our new control so focus it (and unfocus the current control)
  SET_CONTROL_FOCUS(nextControl, 0);
  return true;
}

void CGUIWindow::SetDefaults()
{
  m_renderOrder = 0;
  m_defaultAlways = false;
  m_defaultControl = 0;
  m_bRelativeCoords = false;
  m_posX = m_posY = m_width = m_height = 0;
  m_overlayState = OVERLAY_STATE_PARENT_WINDOW;   // Use parent or previous window's state
  m_visibleCondition = 0;
  m_previousWindow = WINDOW_INVALID;
  m_animations.clear();
  m_origins.clear();
  m_hasCamera = false;
  m_animationsEnabled = true;
  m_clearBackground = 0xff000000; // opaque black -> clear
  m_hitRect.SetRect(0, 0, (float)g_settings.m_ResInfo[m_coordsRes].iWidth, (float)g_settings.m_ResInfo[m_coordsRes].iHeight);
}

CRect CGUIWindow::GetScaledBounds() const
{
  CSingleLock lock(g_graphicsContext);
  g_graphicsContext.SetScalingResolution(m_coordsRes, m_needsScaling);
  CPoint pos(GetPosition());
  CRect rect(pos.x, pos.y, pos.x + m_width, pos.y + m_height);
  float z = 0;
  g_graphicsContext.ScaleFinalCoords(rect.x1, rect.y1, z);
  g_graphicsContext.ScaleFinalCoords(rect.x2, rect.y2, z);
  return rect;
}

void CGUIWindow::OnEditChanged(int id, CStdString &text)
{
  CGUIMessage msg(GUI_MSG_ITEM_SELECTED, GetID(), id);
  OnMessage(msg);
  text = msg.GetLabel();
}

bool CGUIWindow::SendMessage(int message, int id, int param1 /* = 0*/, int param2 /* = 0*/)
{
  CGUIMessage msg(message, GetID(), id, param1, param2);
  return OnMessage(msg);
}

#ifdef _DEBUG
void CGUIWindow::DumpTextureUse()
{
  CLog::Log(LOGDEBUG, "%s for window %u", __FUNCTION__, GetID());
  CGUIControlGroup::DumpTextureUse();
}
#endif

void CGUIWindow::ChangeButtonToEdit(int id, bool singleLabel /* = false*/)
{
#ifdef PRE_SKIN_VERSION_9_10_COMPATIBILITY
  CGUIControl *name = (CGUIControl *)GetControl(id);
  if (name && name->GetControlType() == CGUIControl::GUICONTROL_BUTTON)
  { // change it to an edit control
    CGUIEditControl *edit = new CGUIEditControl(*(const CGUIButtonControl *)name);
    if (edit)
    {
      if (singleLabel)
        edit->SetLabel("");
      InsertControl(edit, name);
      RemoveControl(name);
      name->FreeResources();
      delete name;
    }
  }
#endif
}

void CGUIWindow::SetProperty(const CStdString &key, const CStdString &value)
{
  m_mapProperties[key] = value;
}

void CGUIWindow::SetProperty(const CStdString &key, const char *value)
{
  m_mapProperties[key] = value;
}

void CGUIWindow::SetProperty(const CStdString &key, int value)
{
  CStdString strVal;
  strVal.Format("%d", value);
  SetProperty(key, strVal);
}

void CGUIWindow::SetProperty(const CStdString &key, bool value)
{
  SetProperty(key, value ? "1" : "0");
}

void CGUIWindow::SetProperty(const CStdString &key, double value)
{
  CStdString strVal;
  strVal.Format("%f", value);
  SetProperty(key, strVal);
}

CStdString CGUIWindow::GetProperty(const CStdString &key) const
{
  std::map<CStdString,CStdString,icompare>::const_iterator iter = m_mapProperties.find(key);
  if (iter == m_mapProperties.end())
    return "";

  return iter->second;
}

int CGUIWindow::GetPropertyInt(const CStdString &key) const
{
  return atoi(GetProperty(key).c_str());
}

bool CGUIWindow::GetPropertyBool(const CStdString &key) const
{
  return GetProperty(key) == "1";
}

double CGUIWindow::GetPropertyDouble(const CStdString &key) const
{
  return atof(GetProperty(key).c_str());
}

void CGUIWindow::ClearProperties()
{
  m_mapProperties.clear();
}

void CGUIWindow::RunActions(std::vector<CGUIActionDescriptor>& actions)
{
  vector<CGUIActionDescriptor> tempActions = actions;

  // and execute our actions
  for (unsigned int i = 0; i < tempActions.size(); i++)
  {
    CGUIMessage message(GUI_MSG_EXECUTE, 0, GetID());
    message.SetAction(tempActions[i]);
    g_windowManager.SendMessage(message);
  }
}

void CGUIWindow::SetRunActionsManually()
{
  m_manualRunActions = true;
}

void CGUIWindow::RunLoadActions()
{
  RunActions(m_loadActions);
}

void CGUIWindow::RunUnloadActions()
{
  RunActions(m_unloadActions);
}

void CGUIWindow::ClearBackground()
{
  m_clearBackground.Update();
  color_t color = m_clearBackground;
  if (color)
    g_graphicsContext.Clear(color);
}