2 * Copyright (c) 2019 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 <dali/devel-api/text-abstraction/text-renderer-layout-helper.h>
27 namespace TextAbstraction
30 void TransformToArcClockwise( const CircularTextParameters& parameters, double& x, double& y )
32 double radius = parameters.radius;
33 double angle = parameters.beginAngle;
35 angle -= parameters.invRadius * x;
38 x = radius * cos( angle );
39 y = -radius * sin( angle );
41 x += parameters.centerX;
42 y += parameters.centerY;
45 void TransformToArcAntiClockwise( const CircularTextParameters& parameters, double& x, double& y )
47 double radius = parameters.radius;
48 double angle = parameters.beginAngle;
50 angle += parameters.invRadius * x;
53 x = radius * cos( angle );
54 y = radius * sin( -angle );
56 x += parameters.centerX;
57 y += parameters.centerY;
60 } // namespace TextAbstraction