[dali_2.0.7] Merge branch 'devel/master'
[platform/core/uifw/dali-toolkit.git] / dali-scene-loader / public-api / alpha-function-helper.cpp
1 /*
2  * Copyright (c) 2020 Samsung Electronics Co., Ltd.
3  *
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
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
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.
15  *
16  */
17 #include "dali-scene-loader/public-api/alpha-function-helper.h"
18 #include <unordered_map>
19
20 namespace Dali
21 {
22 namespace SceneLoader
23 {
24 namespace
25 {
26
27 #define DALI_ALPHA_FUNCTION_ENTRY(x) { #x, AlphaFunction::x }
28
29 std::unordered_map<std::string, AlphaFunction> sFunctions {
30   DALI_ALPHA_FUNCTION_ENTRY(DEFAULT),
31   DALI_ALPHA_FUNCTION_ENTRY(LINEAR),
32   DALI_ALPHA_FUNCTION_ENTRY(REVERSE),
33   DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_SQUARE),
34   DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT_SQUARE),
35   DALI_ALPHA_FUNCTION_ENTRY(EASE_IN),
36   DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT),
37   DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_OUT),
38   DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_SINE),
39   DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT_SINE),
40   DALI_ALPHA_FUNCTION_ENTRY(EASE_IN_OUT_SINE),
41   DALI_ALPHA_FUNCTION_ENTRY(BOUNCE),
42   DALI_ALPHA_FUNCTION_ENTRY(SIN),
43   DALI_ALPHA_FUNCTION_ENTRY(EASE_OUT_BACK),
44 };
45
46 #undef DALI_ALPHA_FUNCTION_ENTRY
47
48 } // nonamespace
49
50 AlphaFunction GetAlphaFunction(const std::string& name, bool* found)
51 {
52   auto iFind = sFunctions.find(name);
53   bool success = iFind != sFunctions.end();
54   if (found)
55   {
56     *found = success;
57   }
58   return success ? iFind->second : AlphaFunction(AlphaFunction::DEFAULT);
59 }
60
61 void RegisterAlphaFunction(const std::string & name, AlphaFunction alphaFn)
62 {
63   DALI_ASSERT_ALWAYS(sFunctions.insert({ name, alphaFn }).second &&
64     "Function with given key already exists.");
65 }
66
67 }
68 }