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();
}
}
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 );
}