2 * Copyright (c) 2020 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include "frame-callback.h"
24 FrameCallback::FrameCallback()
25 : mActorIdContainer(),
26 windowHalfWidth( 0.0f )
30 void FrameCallback::SetWindowWidth( float windowWidth )
32 windowHalfWidth = windowWidth * 0.5f;
35 void FrameCallback::AddId( uint32_t id )
37 mActorIdContainer.PushBack( id );
40 void FrameCallback::Update( Dali::UpdateProxy& updateProxy, float /* elapsedSeconds */ )
42 // Go through Actor ID container and check if we've hit the sides.
43 for( auto&& i : mActorIdContainer )
47 if( updateProxy.GetPositionAndSize( i, position, size ) ) // Retrieve the position and size using the Actor ID.
49 float halfWidthPoint = windowHalfWidth - size.width * 0.5f;
50 float xTranslation = abs( position.x );
51 if( xTranslation > halfWidthPoint )
53 // Actor has hit the edge, adjust the size accordingly.
54 float adjustment = xTranslation - halfWidthPoint;
55 size.width += adjustment * SIZE_MULTIPLIER;
56 size.height += adjustment * SIZE_MULTIPLIER;
58 updateProxy.SetSize( i, size ); // Set the size using the UpdateProxy.
61 // Retrieve the actor's position and set make it more transparent the closer it is to the middle.
63 if( updateProxy.GetColor( i, color ) )
65 color.a = xTranslation / halfWidthPoint;
66 updateProxy.SetColor( i, color );