1 /*
2  * Copyright (C) 2017 The Android Open Source Project
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 #ifndef _ANDROID_GRAPHICS_FONT_UTILS_H_
18 #define _ANDROID_GRAPHICS_FONT_UTILS_H_
19 
20 #include <jni.h>
21 #include <memory>
22 
23 namespace minikin {
24 class FontFamily;
25 }  // namespace minikin
26 
27 namespace android {
28 
29 struct FontFamilyWrapper {
FontFamilyWrapperFontFamilyWrapper30   FontFamilyWrapper(std::shared_ptr<minikin::FontFamily>&& family) : family(family) {}
31   std::shared_ptr<minikin::FontFamily> family;
32 };
33 
34 // Utility wrapper for java.util.List
35 class ListHelper {
36 public:
ListHelper(JNIEnv * env,jobject list)37   ListHelper(JNIEnv* env, jobject list) : mEnv(env), mList(list) {}
38 
39   jint size() const;
40   jobject get(jint index) const;
41 
42 private:
43   JNIEnv* mEnv;
44   jobject mList;
45 };
46 
47 // Utility wrapper for android.graphics.FontConfig$Axis
48 class AxisHelper {
49 public:
AxisHelper(JNIEnv * env,jobject axis)50   AxisHelper(JNIEnv* env, jobject axis) : mEnv(env), mAxis(axis) {}
51 
52   jint getTag() const;
53   jfloat getStyleValue() const;
54 
55 private:
56   JNIEnv* mEnv;
57   jobject mAxis;
58 };
59 
60 void init_FontUtils(JNIEnv* env);
61 
62 }; // namespace android
63 
64 #endif  // _ANDROID_GRAPHICS_FONT_UTILS_H_
65