+ if( mQuadIndices )
+ {
+ mQuadIndices.SetSize( indices.Size() );
+ }
+ else
+ {
+ mQuadIndices = PropertyBuffer::New( mQuadIndexFormat, indices.Size() );
+ }
+
+ mQuadVertices.SetData( &vertices[ 0 ] );
+ mQuadIndices.SetData( &indices[ 0 ] );
+
+ if( !mQuadGeometry )
+ {
+ mQuadGeometry = Geometry::New();
+ mQuadGeometry.AddVertexBuffer( mQuadVertices );
+ }
+ mQuadGeometry.SetIndexBuffer( mQuadIndices );
+
+ if( !mHighlightRenderer )
+ {
+ mHighlightRenderer = Dali::Renderer::New( mQuadGeometry, mHighlightMaterial );
+ mHighlightActor.AddRenderer( mHighlightRenderer );
+ }
+ }
+
+ mHighlightActor.SetPosition( mHighlightPosition.x,
+ mHighlightPosition.y );
+
+ mHighlightQuadList.clear();
+
+ if( mHighlightRenderer )
+ {
+ mHighlightRenderer.SetDepthIndex( mTextDepth - 2u ); // text is rendered at mTextDepth and text's shadow at mTextDepth -1u.
+ }
+ }
+ }
+
+ void OnTap( Actor actor, const TapGesture& tap )
+ {
+ if( actor == mHandle[GRAB_HANDLE].actor )
+ {
+ // TODO
+ }
+ }
+
+ void DoPan( HandleImpl& handle, HandleType type, const PanGesture& gesture )
+ {
+ if( Gesture::Started == gesture.state )
+ {
+ handle.grabDisplacementX = handle.grabDisplacementY = 0;
+ }
+
+ handle.grabDisplacementX += gesture.displacement.x;
+ handle.grabDisplacementY += gesture.displacement.y;
+
+ const float x = handle.position.x + handle.grabDisplacementX;
+ const float y = handle.position.y + handle.lineHeight*0.5f + handle.grabDisplacementY;
+
+ if( Gesture::Started == gesture.state ||
+ Gesture::Continuing == gesture.state )
+ {
+ Vector2 targetSize;
+ mController.GetTargetSize( targetSize );
+
+ if( x < mScrollThreshold )
+ {
+ mScrollDirection = SCROLL_RIGHT;
+ mHandleScrolling = type;
+ StartScrollTimer();
+ }
+ else if( x > targetSize.width - mScrollThreshold )
+ {
+ mScrollDirection = SCROLL_LEFT;
+ mHandleScrolling = type;
+ StartScrollTimer();
+ }
+ else
+ {
+ mHandleScrolling = HANDLE_TYPE_COUNT;
+ StopScrollTimer();
+ mController.DecorationEvent( type, HANDLE_PRESSED, x, y );
+ }
+
+ mHandlePanning = true;
+ }
+ else if( Gesture::Finished == gesture.state ||
+ Gesture::Cancelled == gesture.state )
+ {
+ if( mScrollTimer &&
+ ( mScrollTimer.IsRunning() || mNotifyEndOfScroll ) )
+ {
+ mNotifyEndOfScroll = false;
+ mHandleScrolling = HANDLE_TYPE_COUNT;
+ StopScrollTimer();
+ mController.DecorationEvent( type, HANDLE_STOP_SCROLLING, x, y );
+ }
+ else
+ {
+ mController.DecorationEvent( type, HANDLE_RELEASED, x, y );
+ }
+
+ handle.actor.SetImage( mHandleImages[type][HANDLE_IMAGE_RELEASED] );
+ handle.pressed = false;
+
+ mHandlePanning = false;
+ }
+ }
+
+ void OnPan( Actor actor, const PanGesture& gesture )
+ {
+ HandleImpl& grabHandle = mHandle[GRAB_HANDLE];
+ HandleImpl& primarySelectionHandle = mHandle[LEFT_SELECTION_HANDLE];
+ HandleImpl& secondarySelectionHandle = mHandle[RIGHT_SELECTION_HANDLE];
+
+ if( actor == grabHandle.grabArea )
+ {
+ DoPan( grabHandle, GRAB_HANDLE, gesture );
+ }
+ else if( actor == primarySelectionHandle.grabArea )
+ {
+ DoPan( primarySelectionHandle, LEFT_SELECTION_HANDLE, gesture );
+ }
+ else if( actor == secondarySelectionHandle.grabArea )
+ {
+ DoPan( secondarySelectionHandle, RIGHT_SELECTION_HANDLE, gesture );
+ }
+ }
+
+ bool OnGrabHandleTouched( Actor actor, const TouchEvent& event )
+ {
+ // Switch between pressed/release grab-handle images
+ if( event.GetPointCount() > 0 &&
+ mHandle[GRAB_HANDLE].actor )
+ {
+ const TouchPoint& point = event.GetPoint(0);
+
+ if( TouchPoint::Down == point.state )
+ {
+ mHandle[GRAB_HANDLE].pressed = true;
+ }
+ else if( ( TouchPoint::Up == point.state ) ||
+ ( TouchPoint::Interrupted == point.state ) )
+ {
+ mHandle[GRAB_HANDLE].pressed = false;
+ }
+
+ SetHandleImage( GRAB_HANDLE );
+ }
+
+ // Consume to avoid pop-ups accidentally closing, when handle is outside of pop-up area
+ return true;
+ }
+
+ bool OnHandleOneTouched( Actor actor, const TouchEvent& event )
+ {
+ // Switch between pressed/release selection handle images
+ if( event.GetPointCount() > 0 &&
+ mHandle[LEFT_SELECTION_HANDLE].actor )
+ {
+ const TouchPoint& point = event.GetPoint(0);
+
+ if( TouchPoint::Down == point.state )
+ {
+ mHandle[LEFT_SELECTION_HANDLE].pressed = true;
+ }
+ else if( ( TouchPoint::Up == point.state ) ||
+ ( TouchPoint::Interrupted == point.state ) )
+ {
+ mHandle[LEFT_SELECTION_HANDLE].pressed = false;
+ mHandlePreviousCrossed = mHandleCurrentCrossed;
+ mHandlePanning = false;
+ }
+
+ SetHandleImage( LEFT_SELECTION_HANDLE );
+ }
+
+ // Consume to avoid pop-ups accidentally closing, when handle is outside of pop-up area
+ return true;
+ }
+
+ bool OnHandleTwoTouched( Actor actor, const TouchEvent& event )
+ {
+ // Switch between pressed/release selection handle images
+ if( event.GetPointCount() > 0 &&
+ mHandle[RIGHT_SELECTION_HANDLE].actor )
+ {
+ const TouchPoint& point = event.GetPoint(0);
+
+ if( TouchPoint::Down == point.state )
+ {
+ mHandle[RIGHT_SELECTION_HANDLE].pressed = true;
+ }
+ else if( ( TouchPoint::Up == point.state ) ||
+ ( TouchPoint::Interrupted == point.state ) )
+ {
+ mHandle[RIGHT_SELECTION_HANDLE].pressed = false;
+ mHandlePreviousCrossed = mHandleCurrentCrossed;
+ mHandlePanning = false;
+ }
+
+ SetHandleImage( RIGHT_SELECTION_HANDLE );
+ }
+
+ // Consume to avoid pop-ups accidentally closing, when handle is outside of pop-up area
+ return true;
+ }
+
+ void HandleResetPosition( PropertyNotification& source )
+ {
+ const HandleImpl& grabHandle = mHandle[GRAB_HANDLE];
+
+ if( grabHandle.active )
+ {
+ // Sets the grab handle position and calculates if it needs to be vertically flipped if it exceeds the boundary box.
+ SetGrabHandlePosition();
+
+ // Sets the grab handle image according if it's pressed, flipped, etc.
+ SetHandleImage( GRAB_HANDLE );
+ }
+ else
+ {
+ // Sets the primary selection handle position and calculates if it needs to be vertically flipped if it exceeds the boundary box.
+ SetSelectionHandlePosition( LEFT_SELECTION_HANDLE );
+
+ // Sets the primary handle image according if it's pressed, flipped, etc.
+ SetHandleImage( LEFT_SELECTION_HANDLE );
+
+ // Sets the secondary selection handle position and calculates if it needs to be vertically flipped if it exceeds the boundary box.
+ SetSelectionHandlePosition( RIGHT_SELECTION_HANDLE );
+
+ // Sets the secondary handle image according if it's pressed, flipped, etc.
+ SetHandleImage( RIGHT_SELECTION_HANDLE );
+ }
+ }
+
+ void SetupActiveLayerPropertyNotifications()
+ {
+ if( !mActiveLayer )
+ {
+ return;
+ }
+
+ // Vertical notifications.
+
+ // Disconnect any previous connected callback.
+ if( mVerticalLessThanNotification )
+ {
+ mVerticalLessThanNotification.NotifySignal().Disconnect( this, &Decorator::Impl::HandleResetPosition );
+ mActiveLayer.RemovePropertyNotification( mVerticalLessThanNotification );
+ }
+
+ if( mVerticalGreaterThanNotification )
+ {
+ mVerticalGreaterThanNotification.NotifySignal().Disconnect( this, &Decorator::Impl::HandleResetPosition );
+ mActiveLayer.RemovePropertyNotification( mVerticalGreaterThanNotification );
+ }
+
+ const HandleImpl& grabHandle = mHandle[GRAB_HANDLE];
+ const HandleImpl& primaryHandle = mHandle[LEFT_SELECTION_HANDLE];
+ const HandleImpl& secondaryHandle = mHandle[RIGHT_SELECTION_HANDLE];
+
+ if( grabHandle.active )
+ {
+ if( grabHandle.verticallyFlipped )
+ {
+ // The grab handle is vertically flipped. Never is going to exceed the bottom edje of the display.
+ mVerticalGreaterThanNotification.Reset();
+
+ // The vertical distance from the center of the active layer to the top edje of the display.
+ const float topHeight = 0.5f * mControlSize.height - grabHandle.position.y + grabHandle.size.height;
+
+ mVerticalLessThanNotification = mActiveLayer.AddPropertyNotification( Actor::Property::WORLD_POSITION_Y,
+ LessThanCondition( mBoundingBox.y + topHeight ) );
+
+ // Notifies the change from false to true and from true to false.
+ mVerticalLessThanNotification.SetNotifyMode( PropertyNotification::NotifyOnChanged );
+
+ // Connects the signals with the callbacks.
+ mVerticalLessThanNotification.NotifySignal().Connect( this, &Decorator::Impl::HandleResetPosition );
+ }
+ else
+ {
+ // The grab handle is not vertically flipped. Never is going to exceed the top edje of the display.
+ mVerticalLessThanNotification.Reset();
+
+ // The vertical distance from the center of the active layer to the bottom edje of the display.
+ const float bottomHeight = -0.5f * mControlSize.height + grabHandle.position.y + grabHandle.lineHeight + grabHandle.size.height;
+
+ mVerticalGreaterThanNotification = mActiveLayer.AddPropertyNotification( Actor::Property::WORLD_POSITION_Y,
+ GreaterThanCondition( mBoundingBox.w - bottomHeight ) );
+
+ // Notifies the change from false to true and from true to false.
+ mVerticalGreaterThanNotification.SetNotifyMode( PropertyNotification::NotifyOnChanged );
+
+ // Connects the signals with the callbacks.
+ mVerticalGreaterThanNotification.NotifySignal().Connect( this, &Decorator::Impl::HandleResetPosition );
+ }
+ }
+ else // The selection handles are active
+ {
+ if( primaryHandle.verticallyFlipped && secondaryHandle.verticallyFlipped )
+ {
+ // Both selection handles are vertically flipped. Never are going to exceed the bottom edje of the display.
+ mVerticalGreaterThanNotification.Reset();
+
+ // The vertical distance from the center of the active layer to the top edje of the display.
+ const float topHeight = 0.5f * mControlSize.height + std::max( -primaryHandle.position.y + primaryHandle.size.height, -secondaryHandle.position.y + secondaryHandle.size.height );
+
+ mVerticalLessThanNotification = mActiveLayer.AddPropertyNotification( Actor::Property::WORLD_POSITION_Y,
+ LessThanCondition( mBoundingBox.y + topHeight ) );
+
+ // Notifies the change from false to true and from true to false.
+ mVerticalLessThanNotification.SetNotifyMode( PropertyNotification::NotifyOnChanged );
+
+ // Connects the signals with the callbacks.
+ mVerticalLessThanNotification.NotifySignal().Connect( this, &Decorator::Impl::HandleResetPosition );
+ }
+ else if( !primaryHandle.verticallyFlipped && !secondaryHandle.verticallyFlipped )
+ {
+ // Both selection handles aren't vertically flipped. Never are going to exceed the top edje of the display.
+ mVerticalLessThanNotification.Reset();
+
+ // The vertical distance from the center of the active layer to the bottom edje of the display.
+ const float bottomHeight = -0.5f * mControlSize.height + std::max( primaryHandle.position.y + primaryHandle.lineHeight + primaryHandle.size.height,
+ secondaryHandle.position.y + secondaryHandle.lineHeight + secondaryHandle.size.height );
+
+ mVerticalGreaterThanNotification = mActiveLayer.AddPropertyNotification( Actor::Property::WORLD_POSITION_Y,
+ GreaterThanCondition( mBoundingBox.w - bottomHeight ) );
+
+ // Notifies the change from false to true and from true to false.
+ mVerticalGreaterThanNotification.SetNotifyMode( PropertyNotification::NotifyOnChanged );
+
+ // Connects the signals with the callbacks.
+ mVerticalGreaterThanNotification.NotifySignal().Connect( this, &Decorator::Impl::HandleResetPosition );
+ }
+ else
+ {
+ // Only one of the selection handles is vertically flipped. Both vertical notifications are needed.
+
+ // The vertical distance from the center of the active layer to the top edje of the display.
+ const float topHeight = 0.5f * mControlSize.height + ( primaryHandle.verticallyFlipped ?
+ -primaryHandle.position.y + primaryHandle.size.height :
+ -secondaryHandle.position.y + secondaryHandle.size.height );
+
+ mVerticalLessThanNotification = mActiveLayer.AddPropertyNotification( Actor::Property::WORLD_POSITION_Y,
+ LessThanCondition( mBoundingBox.y + topHeight ) );
+
+ // Notifies the change from false to true and from true to false.
+ mVerticalLessThanNotification.SetNotifyMode( PropertyNotification::NotifyOnChanged );
+
+ // Connects the signals with the callbacks.
+ mVerticalLessThanNotification.NotifySignal().Connect( this, &Decorator::Impl::HandleResetPosition );
+
+ // The vertical distance from the center of the active layer to the bottom edje of the display.
+ const float bottomHeight = -0.5f * mControlSize.height + ( primaryHandle.verticallyFlipped ?
+ secondaryHandle.position.y + secondaryHandle.lineHeight + secondaryHandle.size.height :
+ primaryHandle.position.y + primaryHandle.lineHeight + primaryHandle.size.height );
+
+ mVerticalGreaterThanNotification = mActiveLayer.AddPropertyNotification( Actor::Property::WORLD_POSITION_Y,
+ GreaterThanCondition( mBoundingBox.w - bottomHeight ) );
+
+ // Notifies the change from false to true and from true to false.
+ mVerticalGreaterThanNotification.SetNotifyMode( PropertyNotification::NotifyOnChanged );
+
+ // Connects the signals with the callbacks.
+ mVerticalGreaterThanNotification.NotifySignal().Connect( this, &Decorator::Impl::HandleResetPosition );
+ }
+ }
+
+ // Horizontal notifications.
+
+ // Disconnect any previous connected callback.
+ if( mHorizontalLessThanNotification )
+ {
+ mHorizontalLessThanNotification.NotifySignal().Disconnect( this, &Decorator::Impl::HandleResetPosition );
+ mActiveLayer.RemovePropertyNotification( mHorizontalLessThanNotification );
+ }
+
+ if( mHorizontalGreaterThanNotification )
+ {
+ mHorizontalGreaterThanNotification.NotifySignal().Disconnect( this, &Decorator::Impl::HandleResetPosition );
+ mActiveLayer.RemovePropertyNotification( mHorizontalGreaterThanNotification );
+ }
+
+ if( primaryHandle.active || secondaryHandle.active )
+ {
+ // The horizontal distance from the center of the active layer to the left edje of the display.
+ const float leftWidth = 0.5f * mControlSize.width + std::max( -primaryHandle.position.x + primaryHandle.size.width,
+ -secondaryHandle.position.x + secondaryHandle.size.width );