text: /*
   -----------------------------------------------------------------------------
   This source file is part of OGRE
   (Object-oriented Graphics Rendering Engine)
   For the latest info, see http://www.ogre3d.org/
  
   Copyright (c) 2000-2014 Torus Knot Software Ltd
  
   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.
   -----------------------------------------------------------------------------
   */
  #ifndef __SdkSample_H__
  #define __SdkSample_H__
  
  #include "Sample.h"
  #include "Ogre.h"
  #include "OgreAdvancedRenderControls.h"
  
  namespace OgreBites
  {
      /*=============================================================================
      // Base SDK sample class. Includes default player camera and SDK trays.
      =============================================================================*/
      class SdkSample : public Sample
      {
      public:
          SdkSample()
          {
              mCameraMan = 0;
              mCursorWasVisible = false;
              mDragLook = false;
          }
  
          /*-----------------------------------------------------------------------------
          | Manually update the cursor position after being unpaused.
          -----------------------------------------------------------------------------*/
          virtual void unpaused()
          {
              mTrayMgr->refreshCursor();
          }
  
          /*-----------------------------------------------------------------------------
          | Automatically saves position and orientation for free-look cameras.
          -----------------------------------------------------------------------------*/
          virtual void saveState(Ogre::NameValuePairList& state)
          {
              if (mCameraMan->getStyle() == CS_FREELOOK) {
                  state["CameraPosition"] = Ogre::StringConverter::toString(mCameraNode->getPosition());
                  state["CameraOrientation"] = Ogre::StringConverter::toString(mCameraNode->getOrientation());
              }
          }
  
          /*-----------------------------------------------------------------------------
          | Automatically restores position and orientation for free-look cameras.
          -----------------------------------------------------------------------------*/
          virtual void restoreState(Ogre::NameValuePairList& state)
          {
              if (state.find("CameraPosition") != state.end() && state.find("CameraOrientation") != state.end()) {
                  mCameraMan->setStyle(CS_FREELOOK);
                  mCameraNode->setPosition(Ogre::StringConverter::parseVector3(state["CameraPosition"]));
                  mCameraNode->setOrientation(Ogre::StringConverter::parseQuaternion(state["CameraOrientation"]));
              }
          }
  
          virtual bool frameRenderingQueued(const Ogre::FrameEvent& evt)
          {
              if (!mTrayMgr) return true;
  
              mTrayMgr->frameRendered(evt);
              //mControls->frameRendered(evt);
  
              if (!mTrayMgr->isDialogVisible()) {
                  mCameraMan->frameRendered(evt);   // if dialog isn't up, then update the camera
              }
  
              return true;
          }
  
          virtual bool keyPressed(const KeyboardEvent& evt)
          {
              int key = evt.keysym.sym;
  
              if (key == 'h' || key == SDLK_F1)   // toggle visibility of help dialog
              {
                  if (!mTrayMgr->isDialogVisible() && mInfo["Help"] != "") mTrayMgr->showOkDialog("Help", mInfo["Help"]);
                  else mTrayMgr->closeDialog();
              }
  
              if (mTrayMgr->isDialogVisible()) return true;   // don't process any more keys if dialog is up
  
              //mControls->keyPressed(evt);
              mCameraMan->keyPressed(evt);
              return true;
          }
  
          virtual bool keyReleased(const KeyboardEvent& evt)
          {
              mCameraMan->keyReleased(evt);
  
              return true;
          }
  
          /* IMPORTANT: When overriding these following handlers, remember to allow the tray manager
          to filter out any interface-related mouse events before processing them in your scene.
          If the tray manager handler returns true, the event was meant for the trays, not you. */
          virtual bool mouseMoved(const MouseMotionEvent& evt)
          {
              if (mTrayMgr->mouseMoved(evt)) return true;
  
              mCameraMan->mouseMoved(evt);
              return true;
          }
  
          // convert and redirect
          virtual bool touchMoved(const TouchFingerEvent& evt)
          {
              MouseMotionEvent e;
              e.xrel = evt.dx * mWindow->getWidth();
              e.yrel = evt.dy * mWindow->getHeight();
              return mouseMoved(e);
          }
  
          virtual bool mousePressed(const MouseButtonEvent& evt)
          {
              if (mTrayMgr->mousePressed(evt)) return true;
  
              if (mDragLook && evt.button == BUTTON_LEFT) {
                  mCameraMan->setStyle(CS_FREELOOK);
                  mTrayMgr->hideCursor();
              }
  
              mCameraMan->mousePressed(evt);
              return true;
          }
  
          // convert and redirect
          virtual bool touchPressed(const TouchFingerEvent& evt)
          {
              MouseButtonEvent e;
              e.button = BUTTON_LEFT;
              return mousePressed(e);
          }
  
          virtual bool mouseReleased(const MouseButtonEvent& evt)
          {
              if (mTrayMgr->mouseReleased(evt)) return true;
  
              if (mDragLook && evt.button == BUTTON_LEFT) {
                  mCameraMan->setStyle(CS_MANUAL);
                  mTrayMgr->showCursor();
              }
  
              mCameraMan->mouseReleased(evt);
              return true;
          }
  
          // convert and redirect
          virtual bool touchReleased(const TouchFingerEvent& evt)
          {
              MouseButtonEvent e;
              e.button = BUTTON_LEFT;
              return mouseReleased(e);
          }
  
          virtual bool mouseWheelRolled(const MouseWheelEvent& evt)
          {
              if (mTrayMgr->mouseWheelRolled(evt))
                  return true;
              mCameraMan->mouseWheelRolled(evt);
              return true;
          }
  
          /*-----------------------------------------------------------------------------
          | Extended to setup a default tray interface and camera controller.
          -----------------------------------------------------------------------------*/
          virtual void _setup(Ogre::RenderWindow* window, Ogre::FileSystemLayer* fsLayer, Ogre::OverlaySystem* overlaySys)
          {
              Sample::_setup(window, fsLayer, overlaySys);
  
              //if (mTrayMgr)
                  //mControls.reset(new AdvancedRenderControls(mTrayMgr.get(), mCamera));
          }
  
          virtual void _shutdown()
          {
              Sample::_shutdown();
  
              //mControls.reset();
              mCameraMan.reset();
              mTrayMgr.reset();
  
              // restore settings we may have changed, so as not to affect other samples
              Ogre::MaterialManager::getSingleton().setDefaultTextureFiltering(Ogre::TFO_BILINEAR);
              Ogre::MaterialManager::getSingleton().setDefaultAnisotropy(1);
          }
  
      protected:
  
          virtual void setupView()
          {
              // setup default viewport layout and camera
              mCamera = mSceneMgr->createCamera("MainCamera");
              mCameraNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
              mCameraNode->attachObject(mCamera);
              mCameraNode->setFixedYawAxis(true);
              mViewport = mWindow->addViewport(mCamera);
              mCamera->setAspectRatio((Ogre::Real) mViewport->getActualWidth() / (Ogre::Real) mViewport->getActualHeight());
              mCamera->setAutoAspectRatio(true);
              mCamera->setNearClipDistance(5);
          }
  
          virtual void setDragLook(bool enabled)
          {
              if (enabled) {
                  mCameraMan->setStyle(CS_MANUAL);
                  mTrayMgr->showCursor();
                  mDragLook = true;
              } else {
                  mCameraMan->setStyle(CS_FREELOOK);
                  mTrayMgr->hideCursor();
                  mDragLook = false;
              }
          }
  
          void addTextureDebugOverlay(TrayLocation loc, const Ogre::TexturePtr& tex, size_t i)
          {
              using namespace Ogre;
              // Create material
              String matName = "Ogre/DebugTexture" + StringConverter::toString(i);
              MaterialPtr debugMat = MaterialManager::getSingleton().getByName(
                  matName, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
              if (!debugMat) {
                  debugMat = MaterialManager::getSingleton().create(matName,
                      ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
              }
              Pass* p = debugMat->getTechnique(0)->getPass(0);
              p->removeAllTextureUnitStates();
              p->setLightingEnabled(false);
              TextureUnitState* t = p->createTextureUnitState(tex->getName());
              t->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
  
              // create template
              if (!OverlayManager::getSingleton().hasOverlayElement("Ogre/DebugTexOverlay", true)) {
                  OverlayElement* e = OverlayManager::getSingleton().createOverlayElement("Panel", "Ogre/DebugTexOverlay", true);
                  e->setMetricsMode(GMM_PIXELS);
                  e->setWidth(128);
                  e->setHeight(128);
              }
  
              // add widget
              String widgetName = "DebugTex" + StringConverter::toString(i);
              Widget* w = mTrayMgr->getWidget(widgetName);
              if (!w) {
                  w = mTrayMgr->createDecorWidget(loc, widgetName, "Ogre/DebugTexOverlay");
              }
              w->getOverlayElement()->setMaterial(debugMat);
          }
  
          //std::unique_ptr<AdvancedRenderControls> mControls; // sample details panel
          bool mCursorWasVisible;             // was cursor visible before dialog appeared
          bool mDragLook;                     // click and drag to free-look
      };
  }
  
  #endif
  