ScrollBar::ScrollBar(Toolkit::ScrollBar::Direction direction)
: Control( ControlBehaviour( REQUIRES_TOUCH_EVENTS | REQUIRES_STYLE_CHANGE_SIGNALS ) ),
mDirection(direction),
- mScrollableObject(Handle()),
+ mScrollableObject(WeakHandleBase()),
mPropertyScrollPosition(Property::INVALID_INDEX),
mPropertyMinScrollPosition(Property::INVALID_INDEX),
mPropertyMaxScrollPosition(Property::INVALID_INDEX),
&& propertyMaxScrollPosition != Property::INVALID_INDEX
&& propertyScrollContentSize != Property::INVALID_INDEX )
{
- mScrollableObject = handle;
+ mScrollableObject = WeakHandleBase(handle);
mPropertyScrollPosition = propertyScrollPosition;
mPropertyMinScrollPosition = propertyMinScrollPosition;
mPropertyMaxScrollPosition = propertyMaxScrollPosition;
void ScrollBar::ApplyConstraints()
{
- if( mScrollableObject )
+ Handle scrollableHandle = mScrollableObject.GetBaseHandle();
+
+ if( scrollableHandle )
{
if(mIndicatorSizeConstraint)
{
{
mIndicatorSizeConstraint = Constraint::New<Vector3>( mIndicator, Actor::Property::SIZE, IndicatorSizeConstraint() );
mIndicatorSizeConstraint.AddSource( ParentSource( Actor::Property::SIZE ) );
- mIndicatorSizeConstraint.AddSource( Source( mScrollableObject, mPropertyScrollContentSize ) );
+ mIndicatorSizeConstraint.AddSource( Source( scrollableHandle, mPropertyScrollContentSize ) );
mIndicatorSizeConstraint.Apply();
}
mIndicatorPositionConstraint = Constraint::New<Vector3>( mIndicator, Actor::Property::POSITION, IndicatorPositionConstraint() );
mIndicatorPositionConstraint.AddSource( LocalSource( Actor::Property::SIZE ) );
mIndicatorPositionConstraint.AddSource( ParentSource( Actor::Property::SIZE ) );
- mIndicatorPositionConstraint.AddSource( Source( mScrollableObject, mPropertyScrollPosition ) );
- mIndicatorPositionConstraint.AddSource( Source( mScrollableObject, mPropertyMinScrollPosition ) );
- mIndicatorPositionConstraint.AddSource( Source( mScrollableObject, mPropertyMaxScrollPosition ) );
+ mIndicatorPositionConstraint.AddSource( Source( scrollableHandle, mPropertyScrollPosition ) );
+ mIndicatorPositionConstraint.AddSource( Source( scrollableHandle, mPropertyMinScrollPosition ) );
+ mIndicatorPositionConstraint.AddSource( Source( scrollableHandle, mPropertyMaxScrollPosition ) );
mIndicatorPositionConstraint.Apply();
}
}
{
mScrollPositionIntervals = positions;
- if( mScrollableObject )
+ Handle scrollableHandle = mScrollableObject.GetBaseHandle();
+
+ if( scrollableHandle )
{
if( mPositionNotification )
{
- mScrollableObject.RemovePropertyNotification(mPositionNotification);
+ scrollableHandle.RemovePropertyNotification(mPositionNotification);
}
- mPositionNotification = mScrollableObject.AddPropertyNotification( mPropertyScrollPosition, VariableStepCondition(mScrollPositionIntervals) );
+ mPositionNotification = scrollableHandle.AddPropertyNotification( mPropertyScrollPosition, VariableStepCondition(mScrollPositionIntervals) );
mPositionNotification.NotifySignal().Connect( this, &ScrollBar::OnScrollPositionIntervalReached );
}
}
void ScrollBar::OnScrollPositionIntervalReached(PropertyNotification& source)
{
// Emit the signal to notify the scroll position crossing
- if(mScrollableObject)
+ Handle scrollableHandle = mScrollableObject.GetBaseHandle();
+ if(scrollableHandle)
{
- mScrollPositionIntervalReachedSignal.Emit(mScrollableObject.GetProperty<float>(mPropertyScrollPosition));
+ mScrollPositionIntervalReachedSignal.Emit(scrollableHandle.GetProperty<float>(mPropertyScrollPosition));
}
}
bool ScrollBar::OnPanGestureProcessTick()
{
// Update the scroll position property.
- if( mScrollableObject )
+ Handle scrollableHandle = mScrollableObject.GetBaseHandle();
+ if( scrollableHandle )
{
- mScrollableObject.SetProperty(mPropertyScrollPosition, mCurrentScrollPosition);
+ scrollableHandle.SetProperty(mPropertyScrollPosition, mCurrentScrollPosition);
}
return true;
void ScrollBar::OnPan( const PanGesture& gesture )
{
- if(mScrollableObject)
+ Handle scrollableHandle = mScrollableObject.GetBaseHandle();
+
+ if(scrollableHandle)
{
- Dali::Toolkit::ItemView itemView = Dali::Toolkit::ItemView::DownCast(mScrollableObject);
+ Dali::Toolkit::ItemView itemView = Dali::Toolkit::ItemView::DownCast(scrollableHandle);
switch(gesture.state)
{
}
ShowIndicator();
- mScrollStart = mScrollableObject.GetProperty<float>(mPropertyScrollPosition);
+ mScrollStart = scrollableHandle.GetProperty<float>(mPropertyScrollPosition);
mGestureDisplacement = Vector3::ZERO;
mIsPanning = true;
mGestureDisplacement+=delta;
Vector3 span = Self().GetCurrentSize() - mIndicator.GetCurrentSize();
- float minScrollPosition = mScrollableObject.GetProperty<float>(mPropertyMinScrollPosition);
- float maxScrollPosition = mScrollableObject.GetProperty<float>(mPropertyMaxScrollPosition);
+ float minScrollPosition = scrollableHandle.GetProperty<float>(mPropertyMinScrollPosition);
+ float maxScrollPosition = scrollableHandle.GetProperty<float>(mPropertyMaxScrollPosition);
float domainSize = maxScrollPosition - minScrollPosition;
mCurrentScrollPosition = mScrollStart - mGestureDisplacement.y * domainSize / span.y;
{
Property::Value value( Property::ARRAY );
Property::Array* array = value.GetArray();
- Dali::Vector<float> positions = scrollBarImpl.GetScrollPositionIntervals();
- size_t positionCount( array->Count() );
- for( size_t i( 0 ); i != positionCount; ++i )
+
+ if( array )
{
- array->PushBack( positions[i] );
+ Dali::Vector<float> positions = scrollBarImpl.GetScrollPositionIntervals();
+ size_t positionCount( array->Count() );
+ for( size_t i( 0 ); i != positionCount; ++i )
+ {
+ array->PushBack( positions[i] );
+ }
}
break;
}