C++ (Cpp) ImageActor::ClearPixelArea Examples

Example #1

File: utc-Dali-ImageActor.cpp Project: Tarnyko/dali-core

int UtcDaliImageActorClearPixelArea(void)
{
  TestApplication application;

  BitmapImage img = BitmapImage::New( 10, 10 );
  ImageActor actor = ImageActor::New( img );

  DALI_TEST_CHECK( actor.IsPixelAreaSet() == false );

  ImageActor::PixelArea area( 1, 2, 3, 4 );
  actor.SetPixelArea( area );

  DALI_TEST_CHECK( actor.IsPixelAreaSet() == true );

  actor.ClearPixelArea();

  DALI_TEST_CHECK( actor.IsPixelAreaSet() == false );
  END_TEST;
}

Example #2

File: utc-Dali-ImageActor.cpp Project: Tarnyko/dali-core

int UtcDaliImageActorNaturalPixelAreaSize02(void)
{
  TestApplication application;
  tet_infoline("Positive test for Dali::ImageActor::GetCurrentImageSize - check a new image doens't change actor size until load complete");

//If an image is loaded without setting size, then the actor gets the natural size of the image
//Setting the pixel area will change the actor size to match the pixel area
//Setting the actor size will not change pixel area, and will cause the partial image to stretch
//to the new size.
//Clearing the pixel area will not change actor size, and the actor will show the whole image.


  Vector2 closestImageSize( 80, 45);
  application.GetPlatform().SetClosestImageSize(closestImageSize);

  ImageAttributes attrs;
  attrs.SetSize(40, 30); // Request a really small size we won't get.
  Image image = Image::New("image.jpg", attrs);
  ImageActor actor = ImageActor::New( image );
  Stage::GetCurrent().Add(actor);

  application.SendNotification(); // Flush update messages
  application.Render();           // Process resource request

  DALI_TEST_EQUALS( actor.GetCurrentImageSize(), closestImageSize, TEST_LOCATION );
  DALI_TEST_EQUALS( Vector2(actor.GetCurrentSize()), closestImageSize, TEST_LOCATION );

  // Now complete the image load
  Integration::ResourceRequest* req = application.GetPlatform().GetRequest();
  Integration::Bitmap* bitmap = Integration::Bitmap::New( Integration::Bitmap::BITMAP_2D_PACKED_PIXELS, false );
  bitmap->GetPackedPixelsProfile()->ReserveBuffer( Pixel::RGBA8888,  closestImageSize.width, closestImageSize.height, closestImageSize.width, closestImageSize.height );

  Integration::ResourcePointer resourcePtr(bitmap); // reference it
  application.GetPlatform().SetResourceLoaded(req->GetId(), req->GetType()->id, resourcePtr);
  application.Render();           // Process LoadComplete
  application.SendNotification(); // Process event messages
  application.GetPlatform().DiscardRequest(); // Ensure load request is discarded
  application.GetPlatform().ClearReadyResources(); //

  DALI_TEST_EQUALS( actor.GetCurrentImageSize(), closestImageSize, TEST_LOCATION );
  DALI_TEST_EQUALS( Vector2(actor.GetCurrentSize()), closestImageSize, TEST_LOCATION );

  // Set a pixel area on a naturally sized actor - expect the actor to take the
  // pixel area as size
  actor.SetPixelArea(ImageActor::PixelArea(0, 0, 30, 30));
  application.SendNotification(); // Process event messages
  application.Render();           // Process LoadComplete
  DALI_TEST_EQUALS( actor.GetCurrentImageSize(), Vector2(30, 30), TEST_LOCATION );
  DALI_TEST_EQUALS( Vector2(actor.GetCurrentSize()), Vector2(30, 30), TEST_LOCATION );

  // Clear the pixel area. Expect the whole image to be shown, changing actor size
  actor.ClearPixelArea();
  application.SendNotification(); // Process event messages
  application.Render();           // Process LoadComplete
  DALI_TEST_EQUALS( actor.GetCurrentImageSize(), closestImageSize, TEST_LOCATION );
  DALI_TEST_EQUALS( Vector2(actor.GetCurrentSize()), closestImageSize, TEST_LOCATION );

  // Set a size. Expect the partial image to stretch to fill the new size
  actor.SetSize(100, 100);
  application.SendNotification(); // Process event messages
  application.Render();           // Process LoadComplete
  DALI_TEST_EQUALS( actor.GetCurrentImageSize(), Vector2(100, 100), TEST_LOCATION );
  DALI_TEST_EQUALS( Vector2(actor.GetCurrentSize()), Vector2(100, 100), TEST_LOCATION );

  // Set a pixel area, don't expect size to change
  actor.SetPixelArea(ImageActor::PixelArea(0, 0, 40, 40));
  application.SendNotification(); // Process event messages
  application.Render();           // Process LoadComplete
  DALI_TEST_EQUALS( actor.GetCurrentImageSize(), Vector2(40, 40), TEST_LOCATION );
  DALI_TEST_EQUALS( Vector2(actor.GetCurrentSize()), Vector2(100, 100), TEST_LOCATION );

  // Use natural size - expect actor to change to pixel area
  actor.SetToNaturalSize();
  application.SendNotification(); // Process event messages
  application.Render();           // Process LoadComplete
  DALI_TEST_EQUALS( actor.GetCurrentImageSize(), Vector2(40, 40), TEST_LOCATION );
  DALI_TEST_EQUALS( Vector2(actor.GetCurrentSize()), Vector2(40, 40), TEST_LOCATION );

  // Clearing pixel area should change actor size to image size
  actor.ClearPixelArea();
  application.SendNotification(); // Process event messages
  application.Render();           // Process LoadComplete
  DALI_TEST_EQUALS( actor.GetCurrentImageSize(), closestImageSize, TEST_LOCATION );
  DALI_TEST_EQUALS( Vector2(actor.GetCurrentSize()), closestImageSize, TEST_LOCATION );
  END_TEST;
}