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