void ScrollViewSlideEffect::OnAttach(Toolkit::ScrollView& scrollView)
{
mScrollSlideInfo->mScrollPosition = scrollView.GetProperty<Vector3>( scrollView.GetPropertyIndex( Toolkit::ScrollView::SCROLL_POSITION_PROPERTY_NAME ) );
mScrollSlideInfo->mScrollSize = scrollView.GetProperty<Vector3>( Actor::SIZE );
mScrollSlideInfo->mScrollPositionMin = scrollView.GetProperty<Vector3>( scrollView.GetPropertyIndex( Toolkit::ScrollView::SCROLL_POSITION_MIN_PROPERTY_NAME ) );
mScrollSlideInfo->mScrollPositionMax = scrollView.GetProperty<Vector3>( scrollView.GetPropertyIndex( Toolkit::ScrollView::SCROLL_POSITION_MAX_PROPERTY_NAME ) );
mScrollSlideInfo->mScrollWrap = scrollView.GetProperty<bool>( scrollView.GetPropertyIndex( Toolkit::ScrollView::SCROLL_WRAP_PROPERTY_NAME ) );
mScrollSlideInfo->mVertical = false;
// Create effect-time property if not already created.
if(mPropertyTime == Property::INVALID_INDEX)
{
mPropertyTime = SafeRegisterProperty( scrollView, Toolkit::ScrollViewSlideEffect::EFFECT_TIME, 0.0f );
mPropertyReference = SafeRegisterProperty( scrollView, Toolkit::ScrollViewSlideEffect::EFFECT_REFERENCE, Vector3::ZERO );
mPropertyActive = SafeRegisterProperty( scrollView, Toolkit::ScrollViewSlideEffect::EFFECT_ACTIVE, 0.0f );
}
// Create constraint to update ScrollSlideInfo
// Doesn't matter what this is applied to and on what property.
// Just needs to update mScrollSlideInfo values as properties change.
// The minor constraints (applied to the Actors) can use this mScrollSlideInfo.
Constraint constraint = Constraint::New<float>( mPropertyTime,
Source(scrollView, scrollView.GetPropertyIndex( Toolkit::ScrollView::SCROLL_POSITION_PROPERTY_NAME ) ),
Source(scrollView, scrollView.GetPropertyIndex( Toolkit::ScrollViewSlideEffect::EFFECT_REFERENCE ) ),
Source(scrollView, Actor::SIZE),
Source(scrollView, scrollView.GetPropertyIndex( Toolkit::ScrollView::SCROLL_POSITION_MIN_PROPERTY_NAME ) ),
Source(scrollView, scrollView.GetPropertyIndex( Toolkit::ScrollView::SCROLL_POSITION_MAX_PROPERTY_NAME ) ),
Source(scrollView, scrollView.GetPropertyIndex( Toolkit::ScrollView::SCROLL_WRAP_PROPERTY_NAME ) ),
ScrollSlideInfoUpdate(mScrollSlideInfo) );
constraint.SetRemoveAction( Constraint::Discard );
mInfoUpdateConstraint = scrollView.ApplyConstraint( constraint );
// Connect to the scroll view signals
scrollView.ScrollStartedSignal().Connect(this, &ScrollViewSlideEffect::OnScrollStart);
scrollView.SnapStartedSignal().Connect(this, &ScrollViewSlideEffect::OnScrollSnapStarted);
scrollView.TouchedSignal().Connect(this, &ScrollViewSlideEffect::OnScrollTouched);
AttachActor(scrollView);
}
/**
* Invoked upon creation of application
* @param[in] application The application instance
*/
void Create( Application& application )
{
Stage::GetCurrent().KeyEventSignal().Connect(this, &ExampleController::OnKeyEvent);
mStageSize = Stage::GetCurrent().GetSize();
// The Init signal is received once (only) during the Application lifetime
// Hide the indicator bar
application.GetWindow().ShowIndicator( Dali::Window::INVISIBLE );
// Creates a default view with a default tool bar.
// The view is added to the stage.
Toolkit::ToolBar toolBar;
mContent = DemoHelper::CreateView( application,
mView,
toolBar,
BACKGROUND_IMAGE,
TOOLBAR_IMAGE,
APPLICATION_TITLE );
mContent.SetLeaveRequired(true);
mContent.TouchSignal().Connect( this, &ExampleController::OnTouched );
// Create magnifier (controlled by human touch)
Layer overlay = Layer::New();
overlay.SetSensitive(false);
overlay.SetParentOrigin( ParentOrigin::CENTER );
overlay.SetSize(mStageSize);
Stage::GetCurrent().Add(overlay);
mMagnifier = Toolkit::Magnifier::New();
mMagnifier.SetSourceActor( mView );
mMagnifier.SetSize( MAGNIFIER_SIZE * mStageSize.width ); // Size of magnifier is in relation to stage width
mMagnifier.SetProperty( Toolkit::Magnifier::Property::MAGNIFICATION_FACTOR, MAGNIFICATION_FACTOR );
mMagnifier.SetScale(Vector3::ZERO);
overlay.Add( mMagnifier );
// Apply constraint to animate the position of the magnifier.
Constraint constraint = Constraint::New<Vector3>( mMagnifier, Actor::Property::POSITION, ConfinementConstraint(Vector3( 0.5f, 0.5f, 0.0f ), Vector2::ONE * MAGNIFIER_INDENT, Vector2::ONE * MAGNIFIER_INDENT) );
constraint.AddSource( LocalSource(Actor::Property::SIZE) );
constraint.AddSource( LocalSource(Actor::Property::PARENT_ORIGIN) );
constraint.AddSource( LocalSource(Actor::Property::ANCHOR_POINT) );
constraint.AddSource( ParentSource(Actor::Property::SIZE) );
constraint.SetRemoveAction(Constraint::Discard);
constraint.Apply();
// Create bouncing magnifier automatically bounces around screen.
mBouncingMagnifier = Toolkit::Magnifier::New();
mBouncingMagnifier.SetSourceActor( mView );
mBouncingMagnifier.SetSize( MAGNIFIER_SIZE * mStageSize.width ); // Size of magnifier is in relation to stage width
mBouncingMagnifier.SetProperty( Toolkit::Magnifier::Property::MAGNIFICATION_FACTOR, MAGNIFICATION_FACTOR );
overlay.Add( mBouncingMagnifier );
mAnimationTimeProperty = mBouncingMagnifier.RegisterProperty("animationTime", 0.0f);
ContinueAnimation();
// Apply constraint to animate the position of the magnifier.
constraint = Constraint::New<Vector3>( mBouncingMagnifier, Actor::Property::POSITION, MagnifierPathConstraint(mStageSize, mStageSize * 0.5f) );
constraint.AddSource( LocalSource(Actor::Property::SIZE) );
constraint.AddSource( LocalSource(mAnimationTimeProperty) );
constraint.Apply();
// Apply constraint to animate the source of the magnifier.
constraint = Constraint::New<Vector3>( mBouncingMagnifier, Toolkit::Magnifier::Property::SOURCE_POSITION, MagnifierPathConstraint(mStageSize) );
constraint.AddSource( LocalSource(Actor::Property::SIZE) );
constraint.AddSource( LocalSource(mAnimationTimeProperty) );
constraint.Apply();
}