Пример #1
0
void Magnifier::SetFrameVisibility(bool visible)
{
  if(visible && !mFrameLayer)
  {
    Actor self(Self());

    Layer mFrameLayer = Layer::New();
    mFrameLayer.SetParentOrigin( ParentOrigin::CENTER );
    Stage::GetCurrent().Add(mFrameLayer);

    Image image = Image::New( DEFAULT_FRAME_IMAGE_PATH );
    ImageActor frame = ImageActor::New( image );
    frame.SetDrawMode(DrawMode::OVERLAY);
    frame.SetStyle( ImageActor::STYLE_NINE_PATCH );

    frame.SetNinePatchBorder( Vector4::ONE * IMAGE_BORDER_INDENT );
    mFrameLayer.Add(frame);

    // Apply position constraint to the frame
    Constraint constraint = Constraint::New<Vector3>( Actor::POSITION,
                                                      Source( self, Actor::WORLD_POSITION ),
                                                      EqualToConstraint() );
    frame.ApplyConstraint(constraint);

    // Apply scale constraint to the frame
    constraint = Constraint::New<Vector3>( Actor::SCALE,
                                           Source( self, Actor::SCALE ),
                                           EqualToConstraint() );
    frame.ApplyConstraint(constraint);

    Source(self, Actor::SCALE),

    // Apply size constraint to the the frame
    constraint = Constraint::New<Vector3>(Actor::SIZE,
                                          Source(self, Actor::SIZE),
                                          ImageBorderSizeConstraint());
    frame.ApplyConstraint(constraint);
  }
  else if(!visible && mFrameLayer)
  {
    Stage::GetCurrent().Remove(mFrameLayer);
    mFrameLayer.Reset();
  }
}
Пример #2
0
void View::SetBackground( ImageActor backgroundImage )
{
  // Create background layer if doesn't exist.

  if( !mBackgroundLayer )
  {
    mBackgroundLayer = Layer::New();

    mBackgroundLayer.SetPositionInheritanceMode( Dali::USE_PARENT_POSITION );
    mBackgroundLayer.ApplyConstraint( Constraint::New<Vector3>( Actor::SIZE, ParentSource( Actor::SIZE ), EqualToConstraint() ) );

    // Add background layer to custom actor.
    Self().Add( mBackgroundLayer );

    // Drop the background layer

    DALI_ASSERT_ALWAYS( mBackgroundLayer.OnStage() ); // We need to be on-stage to drop the layer
    mBackgroundLayer.LowerToBottom();
  }
  else
  {
    // It removes the old background
    if( 0 < mBackgroundLayer.GetChildCount() )
    {
      mBackgroundLayer.Remove( mBackgroundLayer.GetChildAt(0) );
    }
  }

  backgroundImage.SetPositionInheritanceMode( Dali::USE_PARENT_POSITION );
  Constraint constraint = Constraint::New<Vector3>(
      Actor::SCALE,
      LocalSource( Actor::SIZE ),
      ParentSource( Actor::SIZE ),
      ScaleToFillXYKeepAspectRatioConstraint() );
  backgroundImage.ApplyConstraint( constraint );
  mBackgroundLayer.Add( backgroundImage );
}