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

   1 /*
   2  * Copyright (c) 2014 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/rendering/renderer.h>
  19 #include <dali-toolkit/dali-toolkit.h>
  20 #include <dali-toolkit/devel-api/controls/bubble-effect/bubble-emitter.h>
  21
  22 #include <cstdio>
  23 #include <iostream>
  24
  25 // INTERNAL INCLUDES
  26 #include "shared/view.h"
  27 #include "shared/utility.h"
  28
  29 using namespace Dali;
  30 using namespace Dali::Toolkit;
  31
  32 class NewWindowController;
  33
  34 namespace
  35 {
  36 const char * const BACKGROUND_IMAGE( DEMO_IMAGE_DIR "background-2.jpg" );
  37 const char * const TOOLBAR_IMAGE( DEMO_IMAGE_DIR "top-bar.png" );
  38 const char * const LOSE_CONTEXT_IMAGE( DEMO_IMAGE_DIR "icon-cluster-wobble.png" );
  39 const char * const LOSE_CONTEXT_IMAGE_SELECTED( DEMO_IMAGE_DIR "icon-cluster-wobble-selected.png" );
  40 const char * const BASE_IMAGE( DEMO_IMAGE_DIR "gallery-large-14.jpg" );
  41 const char * const EFFECT_IMAGE( DEMO_IMAGE_DIR "gallery-large-18.jpg" );
  42 const char * const LOGO_IMAGE(DEMO_IMAGE_DIR "dali-logo.png");
  43
  44 const float EXPLOSION_DURATION(1.2f);
  45 const unsigned int EMIT_INTERVAL_IN_MS(40);
  46 const float TRACK_DURATION_IN_MS(970);
  47
  48 Application gApplication;
  49 NewWindowController* gNewWindowController(NULL);
  50
  51 #define MAKE_SHADER(A)#A
  52
  53 const char* VERTEX_COLOR_MESH = MAKE_SHADER(
  54 attribute mediump vec3  aPosition;\n
  55 attribute lowp    vec3  aColor;\n
  56 uniform   mediump mat4  uMvpMatrix;\n
  57 uniform   mediump vec3  uSize;\n
  58 varying   lowp    vec3  vColor;\n
  59 \n
  60 void main()\n
  61 {\n
  62   gl_Position = uMvpMatrix * vec4( aPosition*uSize, 1.0 );\n
  63   vColor = aColor;\n
  64 }\n
  65 );
  66
  67 const char* FRAGMENT_COLOR_MESH = MAKE_SHADER(
  68 uniform lowp vec4  uColor;\n
  69 varying lowp vec3  vColor;\n
  70 \n
  71 void main()\n
  72 {\n
  73   gl_FragColor = vec4(vColor,1.0)*uColor;
  74 }\n
  75 );
  76
  77 const char* VERTEX_TEXTURE_MESH = MAKE_SHADER(
  78 attribute mediump vec3  aPosition;\n
  79 attribute highp   vec2  aTexCoord;\n
  80 uniform   mediump mat4  uMvpMatrix;\n
  81 uniform   mediump vec3  uSize;\n
  82 varying   mediump vec2  vTexCoord;\n
  83 \n
  84 void main()\n
  85 {\n
  86   gl_Position = uMvpMatrix * vec4( aPosition*uSize, 1.0 );\n
  87   vTexCoord = aTexCoord;\n
  88 }\n
  89 );
  90
  91 const char* FRAGMENT_TEXTURE_MESH = MAKE_SHADER(
  92 varying mediump vec2  vTexCoord;\n
  93 uniform lowp    vec4  uColor;\n
  94 uniform sampler2D     sTexture;\n
  95 \n
  96 void main()\n
  97 {\n
  98   gl_FragColor = texture2D( sTexture, vTexCoord ) * uColor;
  99 }\n
 100 );
 101
 102 const char* FRAGMENT_BLEND_SHADER = MAKE_SHADER(
 103 varying mediump vec2  vTexCoord;\n
 104 uniform sampler2D sTexture;\n
 105 uniform sampler2D sEffect;\n
 106 uniform mediump float alpha;\n
 107 \n
 108 void main()\n
 109 {\n
 110   mediump vec4 fragColor = texture2D(sTexture, vTexCoord);\n
 111   mediump vec4 fxColor   = texture2D(sEffect, vTexCoord);\n
 112   gl_FragColor = mix(fragColor,fxColor, alpha);\n
 113 }\n
 114 );
 115
 116 }; // anonymous namespace
 117
 118
 119 class NewWindowController : public ConnectionTracker
 120 {
 121 public:
 122   NewWindowController( Application& app );
 123   void Create( Application& app );
 124   void Destroy( Application& app );
 125
 126   void AddBubbles( Actor& parentActor, const Vector2& stageSize);
 127   void AddMeshActor( Actor& parentActor );
 128   void AddBlendingImageActor( Actor& parentActor );
 129   void AddTextLabel( Actor& parentActor );
 130
 131   ImageView CreateBlurredMirrorImage(const char* imageName);
 132   FrameBufferImage CreateFrameBufferForImage( const char* imageName, Property::Map& shaderEffect, const Vector3& rgbDelta );
 133   void SetUpBubbleEmission( const Vector2& emitPosition, const Vector2& direction );
 134   Geometry CreateMeshGeometry();
 135   Dali::Property::Map CreateColorModifierer();
 136
 137   static void NewWindow(void);
 138
 139   bool OnTrackTimerTick();
 140   void OnKeyEvent(const KeyEvent& event);
 141   bool OnLoseContextButtonClicked( Toolkit::Button button );
 142   void OnContextLost();
 143   void OnContextRegained();
 144
 145 private:
 146   Application                mApplication;
 147   TextLabel                  mTextActor;
 148
 149   Toolkit::Control           mView;                              ///< The View instance.
 150   Toolkit::ToolBar           mToolBar;                           ///< The View's Toolbar.
 151   TextLabel                  mTitleActor;                        ///< The Toolbar's Title.
 152   Layer                      mContentLayer;                      ///< Content layer (scrolling cluster content)
 153   Toolkit::PushButton        mLoseContextButton;
 154
 155   Toolkit::BubbleEmitter     mEmitter;
 156   Timer                      mEmitTrackTimer;
 157   bool                       mNeedNewAnimation;
 158   unsigned int               mAnimateComponentCount;
 159   Animation                  mEmitAnimation;
 160 };
 161
 162
 163 NewWindowController::NewWindowController( Application& application )
 164 : mApplication(application),
 165   mNeedNewAnimation(true)
 166 {
 167   mApplication.InitSignal().Connect(this, &NewWindowController::Create);
 168   mApplication.TerminateSignal().Connect(this, &NewWindowController::Destroy);
 169 }
 170
 171 void NewWindowController::Create( Application& app )
 172 {
 173   Stage stage = Stage::GetCurrent();
 174   stage.SetBackgroundColor(Color::YELLOW);
 175
 176   stage.KeyEventSignal().Connect(this, &NewWindowController::OnKeyEvent);
 177
 178   // The Init signal is received once (only) during the Application lifetime
 179
 180   // Hide the indicator bar
 181   mApplication.GetWindow().ShowIndicator( Dali::Window::INVISIBLE );
 182
 183   mContentLayer = DemoHelper::CreateView( app,
 184                                           mView,
 185                                           mToolBar,
 186                                           "",
 187                                           TOOLBAR_IMAGE,
 188                                           "Context recovery" );
 189
 190   Size stageSize = stage.GetSize();
 191   ImageView backgroundActor = ImageView::New( BACKGROUND_IMAGE, Dali::ImageDimensions( stageSize.x, stageSize.y ) );
 192   backgroundActor.SetParentOrigin( ParentOrigin::CENTER );
 193   mContentLayer.Add(backgroundActor);
 194
 195   // Point the default render task at the view
 196   RenderTaskList taskList = stage.GetRenderTaskList();
 197   RenderTask defaultTask = taskList.GetTask( 0u );
 198   if ( defaultTask )
 199   {
 200     defaultTask.SetSourceActor( mView );
 201   }
 202
 203   mLoseContextButton = Toolkit::PushButton::New();
 204   mLoseContextButton.SetUnselectedImage( LOSE_CONTEXT_IMAGE );
 205   mLoseContextButton.SetSelectedImage( LOSE_CONTEXT_IMAGE_SELECTED );
 206   mLoseContextButton.ClickedSignal().Connect( this, &NewWindowController::OnLoseContextButtonClicked );
 207   mToolBar.AddControl( mLoseContextButton, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarButtonPercentage, Toolkit::Alignment::HorizontalRight, DemoHelper::DEFAULT_MODE_SWITCH_PADDING );
 208
 209   Actor logoLayoutActor = Actor::New();
 210   logoLayoutActor.SetParentOrigin(ParentOrigin::CENTER);
 211   logoLayoutActor.SetPosition(0.0f, -200.0f, 0.0f);
 212   logoLayoutActor.SetScale(0.5f);
 213   backgroundActor.Add(logoLayoutActor);
 214
 215   ImageView imageView = ImageView::New( LOGO_IMAGE );
 216   imageView.SetName("daliLogo");
 217   imageView.SetParentOrigin(ParentOrigin::CENTER);
 218   imageView.SetAnchorPoint(AnchorPoint::BOTTOM_CENTER);
 219   logoLayoutActor.Add(imageView);
 220
 221   ImageView mirrorImageView = CreateBlurredMirrorImage(LOGO_IMAGE);
 222   mirrorImageView.SetParentOrigin(ParentOrigin::TOP_CENTER);
 223   mirrorImageView.SetAnchorPoint(AnchorPoint::BOTTOM_CENTER);
 224   logoLayoutActor.Add(mirrorImageView);
 225
 226   AddBubbles( backgroundActor, stage.GetSize());
 227   AddMeshActor( backgroundActor );
 228   AddBlendingImageActor( backgroundActor );
 229   AddTextLabel( backgroundActor );
 230
 231   stage.ContextLostSignal().Connect(this, &NewWindowController::OnContextLost);
 232   stage.ContextRegainedSignal().Connect(this, &NewWindowController::OnContextRegained);
 233 }
 234
 235 void NewWindowController::Destroy( Application& app )
 236 {
 237   UnparentAndReset(mTextActor);
 238 }
 239
 240 void NewWindowController::AddBubbles( Actor& parentActor, const Vector2& stageSize)
 241 {
 242   mEmitter = Toolkit::BubbleEmitter::New( stageSize,
 243                                           DemoHelper::LoadImage( DEMO_IMAGE_DIR "bubble-ball.png" ),
 244                                           200, Vector2( 5.0f, 5.0f ) );
 245
 246   Image background = DemoHelper::LoadImage(BACKGROUND_IMAGE);
 247   mEmitter.SetBackground( background, Vector3(0.5f, 0.f,0.5f) );
 248   mEmitter.SetBubbleDensity( 9.f );
 249   Actor bubbleRoot = mEmitter.GetRootActor();
 250   parentActor.Add( bubbleRoot );
 251   bubbleRoot.SetParentOrigin(ParentOrigin::CENTER);
 252   bubbleRoot.SetZ(0.1f);
 253
 254   mEmitTrackTimer = Timer::New( EMIT_INTERVAL_IN_MS );
 255   mEmitTrackTimer.TickSignal().Connect(this, &NewWindowController::OnTrackTimerTick);
 256   mEmitTrackTimer.Start();
 257 }
 258
 259 void NewWindowController::AddMeshActor( Actor& parentActor )
 260 {
 261   Geometry meshGeometry = CreateMeshGeometry();
 262
 263   // Create a coloured mesh
 264   Shader shaderColorMesh = Shader::New( VERTEX_COLOR_MESH, FRAGMENT_COLOR_MESH );
 265   Renderer colorMeshRenderer = Renderer::New( meshGeometry, shaderColorMesh );
 266
 267   Actor colorMeshActor = Actor::New();
 268   colorMeshActor.AddRenderer( colorMeshRenderer );
 269   colorMeshActor.SetSize( 175.f,175.f, 175.f );
 270   colorMeshActor.SetParentOrigin( ParentOrigin::CENTER );
 271   colorMeshActor.SetAnchorPoint(AnchorPoint::TOP_CENTER);
 272   colorMeshActor.SetPosition(Vector3(0.0f, 50.0f, 0.0f));
 273   colorMeshActor.SetOrientation( Degree(75.f), Vector3::XAXIS );
 274   colorMeshActor.SetName("ColorMeshActor");
 275
 276  // Create a textured mesh
 277   Texture effectTexture = DemoHelper::LoadTexture(EFFECT_IMAGE);
 278   Shader shaderTextureMesh = Shader::New( VERTEX_TEXTURE_MESH, FRAGMENT_TEXTURE_MESH );
 279   TextureSet textureSet = TextureSet::New();
 280   textureSet.SetTexture( 0u, effectTexture );
 281   Renderer textureMeshRenderer = Renderer::New( meshGeometry, shaderTextureMesh );
 282   textureMeshRenderer.SetTextures( textureSet );
 283
 284   Actor textureMeshActor = Actor::New();
 285   textureMeshActor.AddRenderer( textureMeshRenderer );
 286   textureMeshActor.SetSize( 175.f,175.f, 175.f );
 287   textureMeshActor.SetParentOrigin( ParentOrigin::CENTER );
 288   textureMeshActor.SetAnchorPoint(AnchorPoint::TOP_CENTER);
 289   textureMeshActor.SetPosition(Vector3(0.0f, 200.0f, 0.0f));
 290   textureMeshActor.SetOrientation( Degree(75.f), Vector3::XAXIS );
 291   textureMeshActor.SetName("TextureMeshActor");
 292
 293   Layer layer3d = Layer::New();
 294   layer3d.SetParentOrigin( ParentOrigin::CENTER );
 295   layer3d.SetAnchorPoint( AnchorPoint::CENTER );
 296   layer3d.SetBehavior(Layer::LAYER_3D);
 297
 298   layer3d.Add( colorMeshActor );
 299   layer3d.Add( textureMeshActor );
 300   parentActor.Add(layer3d);
 301 }
 302
 303 void NewWindowController::AddBlendingImageActor( Actor& parentActor )
 304 {
 305   Property::Map colorModifier = CreateColorModifierer();
 306
 307   FrameBufferImage fb2 = CreateFrameBufferForImage( EFFECT_IMAGE, colorModifier, Vector3( 0.5f, 0.5f, 0.5f ) );
 308
 309   ImageView tmpActor = ImageView::New(fb2);
 310   parentActor.Add(tmpActor);
 311   tmpActor.SetParentOrigin(ParentOrigin::CENTER_RIGHT);
 312   tmpActor.SetAnchorPoint(AnchorPoint::TOP_RIGHT);
 313   tmpActor.SetPosition(Vector3(0.0f, 150.0f, 0.0f));
 314   tmpActor.SetScale(0.25f);
 315
 316   // create blending shader effect
 317   Property::Map customShader;
 318   customShader[ "fragmentShader" ] = FRAGMENT_BLEND_SHADER;
 319   Property::Map map;
 320   map[ "shader" ] = customShader;
 321
 322   ImageView blendActor = ImageView::New( BASE_IMAGE );
 323   blendActor.SetProperty( ImageView::Property::IMAGE, map );
 324   blendActor.RegisterProperty( "alpha", 0.5f );
 325
 326   blendActor.SetParentOrigin(ParentOrigin::CENTER_RIGHT);
 327   blendActor.SetAnchorPoint(AnchorPoint::BOTTOM_RIGHT);
 328   blendActor.SetPosition(Vector3(0.0f, 100.0f, 0.0f));
 329   blendActor.SetSize(140, 140);
 330   parentActor.Add(blendActor);
 331
 332   blendActor.GetRendererAt(0u).GetTextures().SetImage( 1u, fb2 );
 333 }
 334
 335 void NewWindowController::AddTextLabel( Actor& parentActor )
 336 {
 337   mTextActor = TextLabel::New("Some text");
 338   mTextActor.SetParentOrigin(ParentOrigin::CENTER);
 339   mTextActor.SetColor(Color::RED);
 340   mTextActor.SetName("PushMe text");
 341   parentActor.Add( mTextActor );
 342 }
 343
 344 ImageView NewWindowController::CreateBlurredMirrorImage(const char* imageName)
 345 {
 346   Image image = DemoHelper::LoadImage(imageName);
 347
 348   Vector2 FBOSize = Vector2( image.GetWidth(), image.GetHeight() );
 349   FrameBufferImage fbo = FrameBufferImage::New( FBOSize.width, FBOSize.height, Pixel::RGBA8888);
 350
 351   GaussianBlurView gbv = GaussianBlurView::New(5, 2.0f, Pixel::RGBA8888, 0.5f, 0.5f, true);
 352   gbv.SetBackgroundColor(Color::TRANSPARENT);
 353   gbv.SetUserImageAndOutputRenderTarget( image, fbo );
 354   gbv.SetSize(FBOSize);
 355   Stage::GetCurrent().Add(gbv);
 356   gbv.ActivateOnce();
 357
 358   ImageView blurredActor = ImageView::New(fbo);
 359   blurredActor.SetSize(FBOSize);
 360   blurredActor.SetScale(1.0f, -1.0f, 1.0f);
 361   return blurredActor;
 362 }
 363
 364 FrameBufferImage NewWindowController::CreateFrameBufferForImage(const char* imageName, Property::Map& shaderEffect, const Vector3& rgbDelta )
 365 {
 366   Stage stage = Stage::GetCurrent();
 367   Uint16Pair intFboSize = ResourceImage::GetImageSize( imageName );
 368   Vector2 FBOSize = Vector2(intFboSize.GetWidth(), intFboSize.GetHeight());
 369
 370   FrameBufferImage framebuffer = FrameBufferImage::New(FBOSize.x, FBOSize.y );
 371
 372   RenderTask renderTask = stage.GetRenderTaskList().CreateTask();
 373
 374   ImageView imageView = ImageView::New( imageName );
 375   imageView.SetName("Source image actor");
 376   imageView.SetProperty( ImageView::Property::IMAGE, shaderEffect );
 377   imageView.RegisterProperty( "uRGBDelta", rgbDelta );
 378
 379   imageView.SetParentOrigin(ParentOrigin::CENTER);
 380   imageView.SetAnchorPoint(AnchorPoint::CENTER);
 381   imageView.SetScale(1.0f, -1.0f, 1.0f);
 382   stage.Add(imageView); // Not in default image view
 383
 384   CameraActor cameraActor = CameraActor::New(FBOSize);
 385   cameraActor.SetParentOrigin(ParentOrigin::CENTER);
 386   cameraActor.SetFieldOfView(Math::PI*0.25f);
 387   cameraActor.SetNearClippingPlane(1.0f);
 388   cameraActor.SetAspectRatio(FBOSize.width / FBOSize.height);
 389   cameraActor.SetType(Dali::Camera::FREE_LOOK); // camera orientation based solely on actor
 390   cameraActor.SetPosition(0.0f, 0.0f, ((FBOSize.height * 0.5f) / tanf(Math::PI * 0.125f)));
 391   stage.Add(cameraActor);
 392
 393   renderTask.SetSourceActor(imageView);
 394   renderTask.SetInputEnabled(false);
 395   renderTask.SetTargetFrameBuffer(framebuffer);
 396   renderTask.SetCameraActor( cameraActor );
 397   renderTask.SetClearColor( Color::TRANSPARENT );
 398   renderTask.SetClearEnabled( true );
 399   renderTask.SetRefreshRate(RenderTask::REFRESH_ONCE);
 400
 401   return framebuffer;
 402 }
 403
 404 void NewWindowController::SetUpBubbleEmission( const Vector2& emitPosition, const Vector2& direction)
 405 {
 406   if( mNeedNewAnimation )
 407   {
 408     float duration = Random::Range(1.f, 1.5f);
 409     mEmitAnimation = Animation::New( duration );
 410     mNeedNewAnimation = false;
 411     mAnimateComponentCount = 0;
 412   }
 413
 414   mEmitter.EmitBubble( mEmitAnimation, emitPosition, direction, Vector2(10,10) );
 415
 416   mAnimateComponentCount++;
 417
 418   if( mAnimateComponentCount % 6 ==0 )
 419   {
 420     mEmitAnimation.Play();
 421     mNeedNewAnimation = true;
 422   }
 423 }
 424
 425 Geometry NewWindowController::CreateMeshGeometry()
 426 {
 427   // Create vertices and specify their color
 428   struct Vertex
 429   {
 430     Vector3 position;
 431     Vector2 textureCoordinates;
 432     Vector3 color;
 433   };
 434
 435   Vertex vertexData[5] = {
 436     { Vector3(  0.0f,  0.0f, 0.5f ), Vector2(0.5f, 0.5f), Vector3(1.0f, 1.0f, 1.0f) },
 437     { Vector3( -0.5f, -0.5f, 0.0f ), Vector2(0.0f, 0.0f), Vector3(1.0f, 0.0f, 0.0f) },
 438     { Vector3(  0.5f, -0.5f, 0.0f ), Vector2(1.0f, 0.0f), Vector3(1.0f, 1.0f, 0.0f) },
 439     { Vector3( -0.5f,  0.5f, 0.0f ), Vector2(0.0f, 1.0f), Vector3(0.0f, 1.0f, 0.0f) },
 440     { Vector3(  0.5f,  0.5f, 0.0f ), Vector2(1.0f, 1.0f), Vector3(0.0f, 0.0f, 1.0f) }  };
 441
 442   Property::Map vertexFormat;
 443   vertexFormat["aPosition"] = Property::VECTOR3;
 444   vertexFormat["aTexCoord"] = Property::VECTOR2;
 445   vertexFormat["aColor"] = Property::VECTOR3;
 446   PropertyBuffer vertices = PropertyBuffer::New( vertexFormat );
 447   vertices.SetData( vertexData, 5 );
 448
 449   // Specify all the faces
 450   unsigned short indexData[12] = { 0,1,3,0,2,4,0,3,4,0,2,1 };
 451
 452   // Create the geometry object
 453   Geometry geometry = Geometry::New();
 454   geometry.AddVertexBuffer( vertices );
 455   geometry.SetIndexBuffer( &indexData[0], 12 );
 456
 457   return geometry;
 458 }
 459
 460 Dali::Property::Map NewWindowController::CreateColorModifierer()
 461 {
 462  const char* fragmentShader ( DALI_COMPOSE_SHADER (
 463    precision highp float;\n
 464    uniform vec3 uRGBDelta;\n
 465    uniform float uIgnoreAlpha;\n
 466    \n
 467    varying mediump vec2 vTexCoord;\n
 468    uniform sampler2D sTexture;\n
 469    \n
 470    float rand(vec2 co) \n
 471    {\n
 472      return fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453); \n}
 473    \n
 474    void main() {\n
 475      vec4 color = texture2D(sTexture, vTexCoord); \n
 476      // modify the hsv Value
 477      color.rgb += uRGBDelta * rand(vTexCoord); \n
 478      // if the new vale exceeds one, then decrease it
 479      color.rgb -= max(color.rgb*2.0 - vec3(2.0), 0.0);\n
 480      // if the new vale drops below zero, then increase it
 481      color.rgb -= min(color.rgb*2.0, 0.0);\n
 482      gl_FragColor = color; \n
 483    }\n
 484  ) );
 485
 486  Property::Map map;
 487  Property::Map customShader;
 488  customShader[ "fragmentShader" ] = fragmentShader;
 489  map[ "shader" ] = customShader;
 490
 491  return map;
 492 }
 493
 494 void NewWindowController::NewWindow(void)
 495 {
 496   PositionSize posSize(0, 0, 720, 1280);
 497   gApplication.ReplaceWindow(posSize, "NewWindow"); // Generates a new window
 498 }
 499
 500 bool NewWindowController::OnLoseContextButtonClicked( Toolkit::Button button )
 501 {
 502   // Add as an idle callback to avoid ProcessEvents being recursively called.
 503   mApplication.AddIdle( MakeCallback( NewWindowController::NewWindow ) );
 504   return true;
 505 }
 506
 507 bool NewWindowController::OnTrackTimerTick()
 508 {
 509   static int time=0;
 510   const float radius(250.0f);
 511
 512   time += EMIT_INTERVAL_IN_MS;
 513   float modTime = time / TRACK_DURATION_IN_MS;
 514   float angle = 2.0f*Math::PI*modTime;
 515
 516   Vector2 position(radius*cosf(angle), radius*-sinf(angle));
 517   Vector2 aimPos(radius*2*sinf(angle), radius*2*-cosf(angle));
 518   Vector2 direction = aimPos-position;
 519   Vector2 stageSize = Stage::GetCurrent().GetSize();
 520
 521   SetUpBubbleEmission( stageSize*0.5f+position, direction );
 522   SetUpBubbleEmission( stageSize*0.5f+position*0.75f, direction );
 523   SetUpBubbleEmission( stageSize*0.5f+position*0.7f, direction );
 524
 525   return true;
 526 }
 527
 528 void NewWindowController::OnKeyEvent(const KeyEvent& event)
 529 {
 530   if(event.state == KeyEvent::Down)
 531   {
 532     if( IsKey( event, Dali::DALI_KEY_ESCAPE) || IsKey( event, Dali::DALI_KEY_BACK) )
 533     {
 534       mApplication.Quit();
 535     }
 536   }
 537 }
 538
 539 void NewWindowController::OnContextLost()
 540 {
 541   printf("Stage reporting context loss\n");
 542 }
 543
 544 void NewWindowController::OnContextRegained()
 545 {
 546   printf("Stage reporting context regain\n");
 547 }
 548
 549 void RunTest(Application& app)
 550 {
 551   gNewWindowController = new NewWindowController(app);
 552   app.MainLoop(Configuration::APPLICATION_DOES_NOT_HANDLE_CONTEXT_LOSS);
 553 }
 554
 555 // Entry point for Linux & Tizen applications
 556 //
 557 int DALI_EXPORT_API main(int argc, char **argv)
 558 {
 559   gApplication = Application::New(&argc, &argv, DEMO_THEME_PATH);
 560   RunTest(gApplication);
 561
 562   return 0;
 563 }