/*
   * Delta3D Open Source Game and Simulation Engine
   * Copyright (C) 2005, BMH Associates, Inc.
   *
   * This library is free software; you can redistribute it and/or modify it under
   * the terms of the GNU Lesser General Public License as published by the Free
   * Software Foundation; either version 2.1 of the License, or (at your option)
   * any later version.
   *
   * This library 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 Lesser General Public License for more
   * details.
   *
   * You should have received a copy of the GNU Lesser General Public License
   * along with this library; if not, write to the Free Software Foundation, Inc.,
   * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
   *
   *
	 author:  William E. Johnson II
  
   */
  
  include <fireFighter/helpwindow.h>
  include <fireFighter/exception.h>
  
  //solves a problem with the prefix headers
  ifdef None
  #undef None
  endif
  
  include <CEGUI.h>
  
  HelpWindow::HelpWindow(CEGUI::Window* mainWindow)
     : mIsEnabled(false)
     , mOverlay(NULL)
     , mHeaderText(NULL)
     , mBinocsText(NULL)
     , mLRFText(NULL)
     , mCompassText(NULL)
     , mGPSText(NULL)
     , mToggleFullScreen(NULL)
     , mMagnifyModels(NULL)
  {
     mMainWindow = NULL;
     InitGui(mainWindow);
  }
  
  HelpWindow::~HelpWindow()
  {
     mOverlay->removeChildWindow(mHeaderText);
     mOverlay->removeChildWindow(mBinocsText);
     mOverlay->removeChildWindow(mLRFText);
     mOverlay->removeChildWindow(mCompassText);
     mOverlay->removeChildWindow(mGPSText);
     mOverlay->removeChildWindow(mToggleFullScreen);
     mOverlay->removeChildWindow(mMagnifyModels);
  
     if (mMainWindow != NULL)
     {
        mMainWindow->removeChildWindow(mOverlay);
     }
  
     mHeaderText->destroy();
     mBinocsText->destroy();
     mLRFText->destroy();
     mCompassText->destroy();
     mGPSText->destroy();
     mToggleFullScreen->destroy();
     mMagnifyModels->destroy();
     mOverlay->destroy();
  }
  
  void HelpWindow::Enable(bool enable)
  {
     mIsEnabled = enable;
  
     mIsEnabled ? mOverlay->show() : mOverlay->hide();
  }
  
  void HelpWindow::InitGui(CEGUI::Window* mainWindow)
  {
     try
     {
        mMainWindow = mainWindow;
        CEGUI::WindowManager* wm = CEGUI::WindowManager::getSingletonPtr();
        mOverlay = static_cast<CEGUI::FrameWindow*>(wm->createWindow("WindowsLook/FrameWindow", "help_window"));
        mOverlay->setProperty("AlwaysOnTop", "True");
  
        if (mMainWindow != NULL)
        {
           mMainWindow->addChildWindow(mOverlay);
        }
  
        mHeaderText       = wm->createWindow("WindowsLook/StaticText", "header_helptext");
        mBinocsText       = wm->createWindow("WindowsLook/StaticText", "binocs_helptext");
        mLRFText          = wm->createWindow("WindowsLook/StaticText", "lrf_helptext");
        mCompassText      = wm->createWindow("WindowsLook/StaticText", "compass_helptext");
        mGPSText          = wm->createWindow("WindowsLook/StaticText", "gps_helptext");
        mToggleFullScreen = wm->createWindow("WindowsLook/StaticText", "fullscreen_helptext");
        mMagnifyModels    = wm->createWindow("WindowsLook/StaticText", "magnifiy_helptext");
  
        mOverlay->addChildWindow(mHeaderText);
        mOverlay->addChildWindow(mBinocsText);
        mOverlay->addChildWindow(mLRFText);
        mOverlay->addChildWindow(mCompassText);
        mOverlay->addChildWindow(mGPSText);
        mOverlay->addChildWindow(mToggleFullScreen);
        mOverlay->addChildWindow(mMagnifyModels);
        mOverlay->setPosition(CEGUI::UVector2(cegui_reldim(0.0f), cegui_reldim(0.0f)));
        mOverlay->setSize(CEGUI::UVector2(cegui_reldim(1.0f), cegui_reldim(1.0f)));
        //mOverlay->setFrameEnabled(false);
  
        mHeaderText->setFont("DejaVuSans-10");
        mHeaderText->setText("Controls");
        mHeaderText->setPosition(CEGUI::UVector2(cegui_reldim(0.33f), cegui_reldim(0.0f)));
        mHeaderText->setSize(CEGUI::UVector2(cegui_reldim(0.8f), cegui_reldim(0.25f)));
        mHeaderText->setProperty("FrameEnabled", "false");
        mHeaderText->setProperty("BackgroundEnabled", "false");
        mHeaderText->setHorizontalAlignment(CEGUI::HA_CENTRE);
  
        mBinocsText->setFont("DejaVuSans-10");
        mBinocsText->setText("WASD: Move Forward/Backward/Strafe");
        mBinocsText->setPosition(CEGUI::UVector2(cegui_reldim(0.01f), cegui_reldim(0.1f)));
        mBinocsText->setSize(CEGUI::UVector2(cegui_reldim(0.8f), cegui_reldim(0.25f)));
        mBinocsText->setProperty("FrameEnabled", "false");
        mBinocsText->setProperty("BackgroundEnabled", "false");
        mBinocsText->setHorizontalAlignment(CEGUI::HA_LEFT);
  
        mLRFText->setFont("DejaVuSans-10");
        mLRFText->setText("Mouse: Look");
        mLRFText->setPosition(CEGUI::UVector2(cegui_reldim(0.01f), cegui_reldim(0.2f)));
        mLRFText->setSize(CEGUI::UVector2(cegui_reldim(1.0f), cegui_reldim(0.25f)));
        mLRFText->setProperty("FrameEnabled", "false");
        mLRFText->setProperty("BackgroundEnabled", "false");
        mLRFText->setHorizontalAlignment(CEGUI::HA_LEFT);
  
        mCompassText->setFont("DejaVuSans-10");
        mCompassText->setText("F: Activate currently viewed item");
        mCompassText->setPosition(CEGUI::UVector2(cegui_reldim(0.01f), cegui_reldim(0.3f)));
        mCompassText->setSize(CEGUI::UVector2(cegui_reldim(0.8f), cegui_reldim(0.25f)));
        mCompassText->setProperty("FrameEnabled", "false");
        mCompassText->setProperty("BackgroundEnabled", "false");
        mCompassText->setHorizontalAlignment(CEGUI::HA_LEFT);
  
        mGPSText->setFont("DejaVuSans-10");
        mGPSText->setText("[]: Change inventory item");
        mGPSText->setPosition(CEGUI::UVector2(cegui_reldim(0.01f), cegui_reldim(0.4f)));
        mGPSText->setSize(CEGUI::UVector2(cegui_reldim(0.8f), cegui_reldim(0.25f)));
        mGPSText->setProperty("FrameEnabled", "false");
        mGPSText->setProperty("BackgroundEnabled", "false");
        mGPSText->setHorizontalAlignment(CEGUI::HA_LEFT);
  
        mToggleFullScreen->setFont("DejaVuSans-10");
        mToggleFullScreen->setText("Left Click: Use current inventory item");
        mToggleFullScreen->setPosition(CEGUI::UVector2(cegui_reldim(0.01f), cegui_reldim(0.5f)));
        mToggleFullScreen->setSize(CEGUI::UVector2(cegui_reldim(0.8f), cegui_reldim(0.25f)));
        mToggleFullScreen->setProperty("FrameEnabled", "false");
        mToggleFullScreen->setProperty("BackgroundEnabled", "false");
        mToggleFullScreen->setHorizontalAlignment(CEGUI::HA_LEFT);
  
        mMagnifyModels->setFont("DejaVuSans-10");
        mMagnifyModels->setText("Esc: Return to menu");
        mMagnifyModels->setPosition(CEGUI::UVector2(cegui_reldim(0.01f), cegui_reldim(0.6f)));
        mMagnifyModels->setSize(CEGUI::UVector2(cegui_reldim(0.8f), cegui_reldim(0.25f)));
        mMagnifyModels->setProperty("FrameEnabled", "false");
        mMagnifyModels->setProperty("BackgroundEnabled", "false");
        mMagnifyModels->setHorizontalAlignment(CEGUI::HA_LEFT);
  
        mCloseButton = static_cast<CEGUI::PushButton*>(wm->createWindow("WindowsLook/Button", "Close Button"));
        mCloseButton->setText("Close");
        mCloseButton->setSize(CEGUI::UVector2(cegui_reldim(0.1f), cegui_reldim(0.1f)));
        mCloseButton->setPosition(CEGUI::UVector2(cegui_reldim(0.0f), cegui_reldim(0.8f)));
        mCloseButton->setMouseCursor(NULL);
        mCloseButton->setHorizontalAlignment(CEGUI::HA_CENTRE);
  
        mOverlay->addChildWindow(mCloseButton);
        mOverlay->setDragMovingEnabled(false);
        mOverlay->setSizingBorderThickness(0);
        mOverlay->setSizingEnabled(false);
  
        Enable(false);
     }
     catch(const CEGUI::Exception& e)
     {
        std::ostringstream oss;
        oss << "CEGUI exception caught: " << e.getMessage().c_str();
        throw dtUtil::Exception(ExceptionEnum::CEGUI_EXCEPTION, oss.str(), __FILE__, __LINE__);
     }
  }