examples/new-window/new-window-example.cpp

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 // EXTERNAL INCLUDES
  18 #include <dali/devel-api/images/texture-set-image.h>
  19 #include <dali/public-api/rendering/renderer.h>
  20 #include <dali-toolkit/dali-toolkit.h>
  21 #include <dali-toolkit/devel-api/controls/bubble-effect/bubble-emitter.h>
  22 #include <dali-toolkit/devel-api/controls/gaussian-blur-view/gaussian-blur-view.h>
  23
  24 #include <cstdio>
  25 #include <iostream>
  26
  27 // INTERNAL INCLUDES
  28 #include "shared/view.h"
  29 #include "shared/utility.h"
  30
  31 using namespace Dali;
  32 using namespace Dali::Toolkit;
  33
  34 class NewWindowController;
  35
  36 namespace
  37 {
  38 const char * const BACKGROUND_IMAGE( DEMO_IMAGE_DIR "background-2.jpg" );
  39 const char * const TOOLBAR_IMAGE( DEMO_IMAGE_DIR "top-bar.png" );
  40 const char * const LOSE_CONTEXT_IMAGE( DEMO_IMAGE_DIR "icon-cluster-wobble.png" );
  41 const char * const LOSE_CONTEXT_IMAGE_SELECTED( DEMO_IMAGE_DIR "icon-cluster-wobble-selected.png" );
  42 const char * const BASE_IMAGE( DEMO_IMAGE_DIR "gallery-large-14.jpg" );
  43 const char * const EFFECT_IMAGE( DEMO_IMAGE_DIR "gallery-large-18.jpg" );
  44 const char * const LOGO_IMAGE(DEMO_IMAGE_DIR "dali-logo.png");
  45
  46 const float EXPLOSION_DURATION(1.2f);
  47 const unsigned int EMIT_INTERVAL_IN_MS(40);
  48 const float TRACK_DURATION_IN_MS(970);
  49
  50 Application gApplication;
  51 NewWindowController* gNewWindowController(NULL);
  52
  53 #define MAKE_SHADER(A)#A
  54
  55 const char* VERTEX_COLOR_MESH = MAKE_SHADER(
  56 attribute mediump vec3  aPosition;\n
  57 attribute lowp    vec3  aColor;\n
  58 uniform   mediump mat4  uMvpMatrix;\n
  59 uniform   mediump vec3  uSize;\n
  60 varying   lowp    vec3  vColor;\n
  61 \n
  62 void main()\n
  63 {\n
  64   gl_Position = uMvpMatrix * vec4( aPosition*uSize, 1.0 );\n
  65   vColor = aColor;\n
  66 }\n
  67 );
  68
  69 const char* FRAGMENT_COLOR_MESH = MAKE_SHADER(
  70 uniform lowp vec4  uColor;\n
  71 varying lowp vec3  vColor;\n
  72 \n
  73 void main()\n
  74 {\n
  75   gl_FragColor = vec4(vColor,1.0)*uColor;
  76 }\n
  77 );
  78
  79 const char* VERTEX_TEXTURE_MESH = MAKE_SHADER(
  80 attribute mediump vec3  aPosition;\n
  81 attribute highp   vec2  aTexCoord;\n
  82 uniform   mediump mat4  uMvpMatrix;\n
  83 uniform   mediump vec3  uSize;\n
  84 varying   mediump vec2  vTexCoord;\n
  85 \n
  86 void main()\n
  87 {\n
  88   gl_Position = uMvpMatrix * vec4( aPosition*uSize, 1.0 );\n
  89   vTexCoord = aTexCoord;\n
  90 }\n
  91 );
  92
  93 const char* FRAGMENT_TEXTURE_MESH = MAKE_SHADER(
  94 varying mediump vec2  vTexCoord;\n
  95 uniform lowp    vec4  uColor;\n
  96 uniform sampler2D     sTexture;\n
  97 \n
  98 void main()\n
  99 {\n
 100   gl_FragColor = texture2D( sTexture, vTexCoord ) * uColor;
 101 }\n
 102 );
 103
 104 const char* FRAGMENT_BLEND_SHADER = MAKE_SHADER(
 105 varying mediump vec2  vTexCoord;\n
 106 uniform sampler2D sTexture;\n
 107 uniform sampler2D sEffect;\n
 108 uniform mediump float alpha;\n
 109 \n
 110 void main()\n
 111 {\n
 112   mediump vec4 fragColor = texture2D(sTexture, vTexCoord);\n
 113   mediump vec4 fxColor   = texture2D(sEffect, vTexCoord);\n
 114   gl_FragColor = mix(fragColor,fxColor, alpha);\n
 115 }\n
 116 );
 117
 118 }; // anonymous namespace
 119
 120
 121 class NewWindowController : public ConnectionTracker
 122 {
 123 public:
 124   NewWindowController( Application& app );
 125   void Create( Application& app );
 126   void Destroy( Application& app );
 127
 128   void AddBubbles( Actor& parentActor, const Vector2& stageSize);
 129   void AddMeshActor( Actor& parentActor );
 130   void AddBlendingImageActor( Actor& parentActor );
 131   void AddTextLabel( Actor& parentActor );
 132
 133   ImageView CreateBlurredMirrorImage(const char* imageName);
 134   FrameBufferImage CreateFrameBufferForImage( const char* imageName, Property::Map& shaderEffect, const Vector3& rgbDelta );
 135   void SetUpBubbleEmission( const Vector2& emitPosition, const Vector2& direction );
 136   Geometry CreateMeshGeometry();
 137   Dali::Property::Map CreateColorModifierer();
 138
 139   static void NewWindow(void);
 140
 141   bool OnTrackTimerTick();
 142   void OnKeyEvent(const KeyEvent& event);
 143   bool OnLoseContextButtonClicked( Toolkit::Button button );
 144   void OnContextLost();
 145   void OnContextRegained();
 146
 147 private:
 148   Application                mApplication;
 149   TextLabel                  mTextActor;
 150
 151   Toolkit::Control           mView;                              ///< The View instance.
 152   Toolkit::ToolBar           mToolBar;                           ///< The View's Toolbar.
 153   TextLabel                  mTitleActor;                        ///< The Toolbar's Title.
 154   Layer                      mContentLayer;                      ///< Content layer (scrolling cluster content)
 155   Toolkit::PushButton        mLoseContextButton;
 156
 157   Toolkit::BubbleEmitter     mEmitter;
 158   Timer                      mEmitTrackTimer;
 159   bool                       mNeedNewAnimation;
 160   unsigned int               mAnimateComponentCount;
 161   Animation                  mEmitAnimation;
 162 };
 163
 164
 165 NewWindowController::NewWindowController( Application& application )
 166 : mApplication(application),
 167   mNeedNewAnimation(true),
 168   mAnimateComponentCount( 0 )
 169 {
 170   mApplication.InitSignal().Connect(this, &NewWindowController::Create);
 171   mApplication.TerminateSignal().Connect(this, &NewWindowController::Destroy);
 172 }
 173
 174 void NewWindowController::Create( Application& app )
 175 {
 176   Stage stage = Stage::GetCurrent();
 177   stage.SetBackgroundColor(Color::YELLOW);
 178
 179   stage.KeyEventSignal().Connect(this, &NewWindowController::OnKeyEvent);
 180
 181   // The Init signal is received once (only) during the Application lifetime
 182
 183   // Hide the indicator bar
 184   mApplication.GetWindow().ShowIndicator( Dali::Window::INVISIBLE );
 185
 186   mContentLayer = DemoHelper::CreateView( app,
 187                                           mView,
 188                                           mToolBar,
 189                                           "",
 190                                           TOOLBAR_IMAGE,
 191                                           "Context recovery" );
 192
 193   Size stageSize = stage.GetSize();
 194   ImageView backgroundActor = ImageView::New( BACKGROUND_IMAGE, Dali::ImageDimensions( stageSize.x, stageSize.y ) );
 195   backgroundActor.SetParentOrigin( ParentOrigin::CENTER );
 196   mContentLayer.Add(backgroundActor);
 197
 198   // Point the default render task at the view
 199   RenderTaskList taskList = stage.GetRenderTaskList();
 200   RenderTask defaultTask = taskList.GetTask( 0u );
 201   if ( defaultTask )
 202   {
 203     defaultTask.SetSourceActor( mView );
 204   }
 205
 206   mLoseContextButton = Toolkit::PushButton::New();
 207   mLoseContextButton.SetUnselectedImage( LOSE_CONTEXT_IMAGE );
 208   mLoseContextButton.SetSelectedImage( LOSE_CONTEXT_IMAGE_SELECTED );
 209   mLoseContextButton.ClickedSignal().Connect( this, &NewWindowController::OnLoseContextButtonClicked );
 210   mToolBar.AddControl( mLoseContextButton, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarButtonPercentage, Toolkit::Alignment::HorizontalRight, DemoHelper::DEFAULT_MODE_SWITCH_PADDING );
 211
 212   Actor logoLayoutActor = Actor::New();
 213   logoLayoutActor.SetParentOrigin(ParentOrigin::CENTER);
 214   logoLayoutActor.SetPosition(0.0f, -200.0f, 0.0f);
 215   logoLayoutActor.SetScale(0.5f);
 216   backgroundActor.Add(logoLayoutActor);
 217
 218   ImageView imageView = ImageView::New( LOGO_IMAGE );
 219   imageView.SetName("daliLogo");
 220   imageView.SetParentOrigin(ParentOrigin::CENTER);
 221   imageView.SetAnchorPoint(AnchorPoint::BOTTOM_CENTER);
 222   logoLayoutActor.Add(imageView);
 223
 224   ImageView mirrorImageView = CreateBlurredMirrorImage(LOGO_IMAGE);
 225   mirrorImageView.SetParentOrigin(ParentOrigin::TOP_CENTER);
 226   mirrorImageView.SetAnchorPoint(AnchorPoint::BOTTOM_CENTER);
 227   logoLayoutActor.Add(mirrorImageView);
 228
 229   AddBubbles( backgroundActor, stage.GetSize());
 230   AddMeshActor( backgroundActor );
 231   AddBlendingImageActor( backgroundActor );
 232   AddTextLabel( backgroundActor );
 233
 234   stage.ContextLostSignal().Connect(this, &NewWindowController::OnContextLost);
 235   stage.ContextRegainedSignal().Connect(this, &NewWindowController::OnContextRegained);
 236 }
 237
 238 void NewWindowController::Destroy( Application& app )
 239 {
 240   UnparentAndReset(mTextActor);
 241 }
 242
 243 void NewWindowController::AddBubbles( Actor& parentActor, const Vector2& stageSize)
 244 {
 245   mEmitter = Toolkit::BubbleEmitter::New( stageSize,
 246                                           DemoHelper::LoadImage( DEMO_IMAGE_DIR "bubble-ball.png" ),
 247                                           200, Vector2( 5.0f, 5.0f ) );
 248
 249   Image background = DemoHelper::LoadImage(BACKGROUND_IMAGE);
 250   mEmitter.SetBackground( background, Vector3(0.5f, 0.f,0.5f) );
 251   mEmitter.SetBubbleDensity( 9.f );
 252   Actor bubbleRoot = mEmitter.GetRootActor();
 253   parentActor.Add( bubbleRoot );
 254   bubbleRoot.SetParentOrigin(ParentOrigin::CENTER);
 255   bubbleRoot.SetZ(0.1f);
 256
 257   mEmitTrackTimer = Timer::New( EMIT_INTERVAL_IN_MS );
 258   mEmitTrackTimer.TickSignal().Connect(this, &NewWindowController::OnTrackTimerTick);
 259   mEmitTrackTimer.Start();
 260 }
 261
 262 void NewWindowController::AddMeshActor( Actor& parentActor )
 263 {
 264   Geometry meshGeometry = CreateMeshGeometry();
 265
 266   // Create a coloured mesh
 267   Shader shaderColorMesh = Shader::New( VERTEX_COLOR_MESH, FRAGMENT_COLOR_MESH );
 268   Renderer colorMeshRenderer = Renderer::New( meshGeometry, shaderColorMesh );
 269
 270   Actor colorMeshActor = Actor::New();
 271   colorMeshActor.AddRenderer( colorMeshRenderer );
 272   colorMeshActor.SetSize( 175.f,175.f, 175.f );
 273   colorMeshActor.SetParentOrigin( ParentOrigin::CENTER );
 274   colorMeshActor.SetAnchorPoint(AnchorPoint::TOP_CENTER);
 275   colorMeshActor.SetPosition(Vector3(0.0f, 50.0f, 0.0f));
 276   colorMeshActor.SetOrientation( Degree(75.f), Vector3::XAXIS );
 277   colorMeshActor.SetName("ColorMeshActor");
 278
 279  // Create a textured mesh
 280   Texture effectTexture = DemoHelper::LoadTexture(EFFECT_IMAGE);
 281   Shader shaderTextureMesh = Shader::New( VERTEX_TEXTURE_MESH, FRAGMENT_TEXTURE_MESH );
 282   TextureSet textureSet = TextureSet::New();
 283   textureSet.SetTexture( 0u, effectTexture );
 284   Renderer textureMeshRenderer = Renderer::New( meshGeometry, shaderTextureMesh );
 285   textureMeshRenderer.SetTextures( textureSet );
 286
 287   Actor textureMeshActor = Actor::New();
 288   textureMeshActor.AddRenderer( textureMeshRenderer );
 289   textureMeshActor.SetSize( 175.f,175.f, 175.f );
 290   textureMeshActor.SetParentOrigin( ParentOrigin::CENTER );
 291   textureMeshActor.SetAnchorPoint(AnchorPoint::TOP_CENTER);
 292   textureMeshActor.SetPosition(Vector3(0.0f, 200.0f, 0.0f));
 293   textureMeshActor.SetOrientation( Degree(75.f), Vector3::XAXIS );
 294   textureMeshActor.SetName("TextureMeshActor");
 295
 296   Layer layer3d = Layer::New();
 297   layer3d.SetParentOrigin( ParentOrigin::CENTER );
 298   layer3d.SetAnchorPoint( AnchorPoint::CENTER );
 299   layer3d.SetBehavior(Layer::LAYER_3D);
 300
 301   layer3d.Add( colorMeshActor );
 302   layer3d.Add( textureMeshActor );
 303   parentActor.Add(layer3d);
 304 }
 305
 306 void NewWindowController::AddBlendingImageActor( Actor& parentActor )
 307 {
 308   Property::Map colorModifier = CreateColorModifierer();
 309
 310   FrameBufferImage fb2 = CreateFrameBufferForImage( EFFECT_IMAGE, colorModifier, Vector3( 0.5f, 0.5f, 0.5f ) );
 311
 312   ImageView tmpActor = ImageView::New(fb2);
 313   parentActor.Add(tmpActor);
 314   tmpActor.SetParentOrigin(ParentOrigin::CENTER_RIGHT);
 315   tmpActor.SetAnchorPoint(AnchorPoint::TOP_RIGHT);
 316   tmpActor.SetPosition(Vector3(0.0f, 150.0f, 0.0f));
 317   tmpActor.SetScale(0.25f);
 318
 319   // create blending shader effect
 320   Property::Map customShader;
 321   customShader[ "fragmentShader" ] = FRAGMENT_BLEND_SHADER;
 322   Property::Map map;
 323   map[ "shader" ] = customShader;
 324
 325   ImageView blendActor = ImageView::New( BASE_IMAGE );
 326   blendActor.SetProperty( ImageView::Property::IMAGE, map );
 327   blendActor.RegisterProperty( "alpha", 0.5f );
 328
 329   blendActor.SetParentOrigin(ParentOrigin::CENTER_RIGHT);
 330   blendActor.SetAnchorPoint(AnchorPoint::BOTTOM_RIGHT);
 331   blendActor.SetPosition(Vector3(0.0f, 100.0f, 0.0f));
 332   blendActor.SetSize(140, 140);
 333   parentActor.Add(blendActor);
 334
 335   TextureSet textureSet = blendActor.GetRendererAt(0u).GetTextures();
 336   TextureSetImage( textureSet, 1u, fb2 );
 337 }
 338
 339 void NewWindowController::AddTextLabel( Actor& parentActor )
 340 {
 341   mTextActor = TextLabel::New("Some text");
 342   mTextActor.SetParentOrigin(ParentOrigin::CENTER);
 343   mTextActor.SetColor(Color::RED);
 344   mTextActor.SetName("PushMe text");
 345   parentActor.Add( mTextActor );
 346 }
 347
 348 ImageView NewWindowController::CreateBlurredMirrorImage(const char* imageName)
 349 {
 350   Image image = DemoHelper::LoadImage(imageName);
 351
 352   Vector2 FBOSize = Vector2( image.GetWidth(), image.GetHeight() );
 353   FrameBufferImage fbo = FrameBufferImage::New( FBOSize.width, FBOSize.height, Pixel::RGBA8888);
 354
 355   GaussianBlurView gbv = GaussianBlurView::New(5, 2.0f, Pixel::RGBA8888, 0.5f, 0.5f, true);
 356   gbv.SetBackgroundColor(Color::TRANSPARENT);
 357   gbv.SetUserImageAndOutputRenderTarget( image, fbo );
 358   gbv.SetSize(FBOSize);
 359   Stage::GetCurrent().Add(gbv);
 360   gbv.ActivateOnce();
 361
 362   ImageView blurredActor = ImageView::New(fbo);
 363   blurredActor.SetSize(FBOSize);
 364   blurredActor.SetScale(1.0f, -1.0f, 1.0f);
 365   return blurredActor;
 366 }
 367
 368 FrameBufferImage NewWindowController::CreateFrameBufferForImage(const char* imageName, Property::Map& shaderEffect, const Vector3& rgbDelta )
 369 {
 370   Stage stage = Stage::GetCurrent();
 371   Uint16Pair intFboSize = ResourceImage::GetImageSize( imageName );
 372   Vector2 FBOSize = Vector2(intFboSize.GetWidth(), intFboSize.GetHeight());
 373
 374   FrameBufferImage framebuffer = FrameBufferImage::New(FBOSize.x, FBOSize.y );
 375
 376   RenderTask renderTask = stage.GetRenderTaskList().CreateTask();
 377
 378   ImageView imageView = ImageView::New( imageName );
 379   imageView.SetName("Source image actor");
 380   imageView.SetProperty( ImageView::Property::IMAGE, shaderEffect );
 381   imageView.RegisterProperty( "uRGBDelta", rgbDelta );
 382
 383   imageView.SetParentOrigin(ParentOrigin::CENTER);
 384   imageView.SetAnchorPoint(AnchorPoint::CENTER);
 385   imageView.SetScale(1.0f, -1.0f, 1.0f);
 386   stage.Add(imageView); // Not in default image view
 387
 388   CameraActor cameraActor = CameraActor::New(FBOSize);
 389   cameraActor.SetParentOrigin(ParentOrigin::CENTER);
 390   cameraActor.SetFieldOfView(Math::PI*0.25f);
 391   cameraActor.SetNearClippingPlane(1.0f);
 392   cameraActor.SetAspectRatio(FBOSize.width / FBOSize.height);
 393   cameraActor.SetType(Dali::Camera::FREE_LOOK); // camera orientation based solely on actor
 394   cameraActor.SetPosition(0.0f, 0.0f, ((FBOSize.height * 0.5f) / tanf(Math::PI * 0.125f)));
 395   stage.Add(cameraActor);
 396
 397   renderTask.SetSourceActor(imageView);
 398   renderTask.SetInputEnabled(false);
 399   renderTask.SetTargetFrameBuffer(framebuffer);
 400   renderTask.SetCameraActor( cameraActor );
 401   renderTask.SetClearColor( Color::TRANSPARENT );
 402   renderTask.SetClearEnabled( true );
 403   renderTask.SetRefreshRate(RenderTask::REFRESH_ONCE);
 404
 405   return framebuffer;
 406 }
 407
 408 void NewWindowController::SetUpBubbleEmission( const Vector2& emitPosition, const Vector2& direction)
 409 {
 410   if( mNeedNewAnimation )
 411   {
 412     float duration = Random::Range(1.f, 1.5f);
 413     mEmitAnimation = Animation::New( duration );
 414     mNeedNewAnimation = false;
 415     mAnimateComponentCount = 0;
 416   }
 417
 418   mEmitter.EmitBubble( mEmitAnimation, emitPosition, direction, Vector2(10,10) );
 419
 420   mAnimateComponentCount++;
 421
 422   if( mAnimateComponentCount % 6 ==0 )
 423   {
 424     mEmitAnimation.Play();
 425     mNeedNewAnimation = true;
 426   }
 427 }
 428
 429 Geometry NewWindowController::CreateMeshGeometry()
 430 {
 431   // Create vertices and specify their color
 432   struct Vertex
 433   {
 434     Vector3 position;
 435     Vector2 textureCoordinates;
 436     Vector3 color;
 437   };
 438
 439   Vertex vertexData[5] = {
 440     { Vector3(  0.0f,  0.0f, 0.5f ), Vector2(0.5f, 0.5f), Vector3(1.0f, 1.0f, 1.0f) },
 441     { Vector3( -0.5f, -0.5f, 0.0f ), Vector2(0.0f, 0.0f), Vector3(1.0f, 0.0f, 0.0f) },
 442     { Vector3(  0.5f, -0.5f, 0.0f ), Vector2(1.0f, 0.0f), Vector3(1.0f, 1.0f, 0.0f) },
 443     { Vector3( -0.5f,  0.5f, 0.0f ), Vector2(0.0f, 1.0f), Vector3(0.0f, 1.0f, 0.0f) },
 444     { Vector3(  0.5f,  0.5f, 0.0f ), Vector2(1.0f, 1.0f), Vector3(0.0f, 0.0f, 1.0f) }  };
 445
 446   Property::Map vertexFormat;
 447   vertexFormat["aPosition"] = Property::VECTOR3;
 448   vertexFormat["aTexCoord"] = Property::VECTOR2;
 449   vertexFormat["aColor"] = Property::VECTOR3;
 450   PropertyBuffer vertices = PropertyBuffer::New( vertexFormat );
 451   vertices.SetData( vertexData, 5 );
 452
 453   // Specify all the faces
 454   unsigned short indexData[12] = { 0,1,3,0,2,4,0,3,4,0,2,1 };
 455
 456   // Create the geometry object
 457   Geometry geometry = Geometry::New();
 458   geometry.AddVertexBuffer( vertices );
 459   geometry.SetIndexBuffer( &indexData[0], 12 );
 460
 461   return geometry;
 462 }
 463
 464 Dali::Property::Map NewWindowController::CreateColorModifierer()
 465 {
 466  const char* fragmentShader ( DALI_COMPOSE_SHADER (
 467    precision highp float;\n
 468    uniform vec3 uRGBDelta;\n
 469    uniform float uIgnoreAlpha;\n
 470    \n
 471    varying mediump vec2 vTexCoord;\n
 472    uniform sampler2D sTexture;\n
 473    \n
 474    float rand(vec2 co) \n
 475    {\n
 476      return fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453); \n}
 477    \n
 478    void main() {\n
 479      vec4 color = texture2D(sTexture, vTexCoord); \n
 480      // modify the hsv Value
 481      color.rgb += uRGBDelta * rand(vTexCoord); \n
 482      // if the new vale exceeds one, then decrease it
 483      color.rgb -= max(color.rgb*2.0 - vec3(2.0), 0.0);\n
 484      // if the new vale drops below zero, then increase it
 485      color.rgb -= min(color.rgb*2.0, 0.0);\n
 486      gl_FragColor = color; \n
 487    }\n
 488  ) );
 489
 490  Property::Map map;
 491  Property::Map customShader;
 492  customShader[ "fragmentShader" ] = fragmentShader;
 493  map[ "shader" ] = customShader;
 494
 495  return map;
 496 }
 497
 498 void NewWindowController::NewWindow(void)
 499 {
 500   PositionSize posSize(0, 0, 720, 1280);
 501   gApplication.ReplaceWindow(posSize, "NewWindow"); // Generates a new window
 502 }
 503
 504 bool NewWindowController::OnLoseContextButtonClicked( Toolkit::Button button )
 505 {
 506   // Add as an idle callback to avoid ProcessEvents being recursively called.
 507   mApplication.AddIdle( MakeCallback( NewWindowController::NewWindow ) );
 508   return true;
 509 }
 510
 511 bool NewWindowController::OnTrackTimerTick()
 512 {
 513   static int time=0;
 514   const float radius(250.0f);
 515
 516   time += EMIT_INTERVAL_IN_MS;
 517   float modTime = time / TRACK_DURATION_IN_MS;
 518   float angle = 2.0f*Math::PI*modTime;
 519
 520   Vector2 position(radius*cosf(angle), radius*-sinf(angle));
 521   Vector2 aimPos(radius*2*sinf(angle), radius*2*-cosf(angle));
 522   Vector2 direction = aimPos-position;
 523   Vector2 stageSize = Stage::GetCurrent().GetSize();
 524
 525   SetUpBubbleEmission( stageSize*0.5f+position, direction );
 526   SetUpBubbleEmission( stageSize*0.5f+position*0.75f, direction );
 527   SetUpBubbleEmission( stageSize*0.5f+position*0.7f, direction );
 528
 529   return true;
 530 }
 531
 532 void NewWindowController::OnKeyEvent(const KeyEvent& event)
 533 {
 534   if(event.state == KeyEvent::Down)
 535   {
 536     if( IsKey( event, Dali::DALI_KEY_ESCAPE) || IsKey( event, Dali::DALI_KEY_BACK) )
 537     {
 538       mApplication.Quit();
 539     }
 540   }
 541 }
 542
 543 void NewWindowController::OnContextLost()
 544 {
 545   printf("Stage reporting context loss\n");
 546 }
 547
 548 void NewWindowController::OnContextRegained()
 549 {
 550   printf("Stage reporting context regain\n");
 551 }
 552
 553 void RunTest(Application& app)
 554 {
 555   gNewWindowController = new NewWindowController(app);
 556   app.MainLoop(Configuration::APPLICATION_DOES_NOT_HANDLE_CONTEXT_LOSS);
 557 }
 558
 559 // Entry point for Linux & Tizen applications
 560 //
 561 int DALI_EXPORT_API main(int argc, char **argv)
 562 {
 563   gApplication = Application::New(&argc, &argv, DEMO_THEME_PATH);
 564   RunTest(gApplication);
 565
 566   return 0;
 567 }