1 /*
2 * Copyright (C) 2016 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 #include "FontUtils.h"
18
19 #include "graphics_jni_helpers.h"
20
21 namespace android {
22 namespace {
23
24 static struct {
25 jmethodID mGet;
26 jmethodID mSize;
27 } gListClassInfo;
28
29 static struct {
30 jfieldID mTag;
31 jfieldID mStyleValue;
32 } gAxisClassInfo;
33
34 } // namespace
35
size() const36 jint ListHelper::size() const {
37 return mEnv->CallIntMethod(mList, gListClassInfo.mSize);
38 }
39
get(jint index) const40 jobject ListHelper::get(jint index) const {
41 return mEnv->CallObjectMethod(mList, gListClassInfo.mGet, index);
42 }
43
getTag() const44 jint AxisHelper::getTag() const {
45 return mEnv->GetIntField(mAxis, gAxisClassInfo.mTag);
46 }
47
getStyleValue() const48 jfloat AxisHelper::getStyleValue() const {
49 return mEnv->GetFloatField(mAxis, gAxisClassInfo.mStyleValue);
50 }
51
init_FontUtils(JNIEnv * env)52 void init_FontUtils(JNIEnv* env) {
53 jclass listClass = FindClassOrDie(env, "java/util/List");
54 gListClassInfo.mGet = GetMethodIDOrDie(env, listClass, "get", "(I)Ljava/lang/Object;");
55 gListClassInfo.mSize = GetMethodIDOrDie(env, listClass, "size", "()I");
56
57 jclass axisClass = FindClassOrDie(env, "android/graphics/fonts/FontVariationAxis");
58 gAxisClassInfo.mTag = GetFieldIDOrDie(env, axisClass, "mTag", "I");
59 gAxisClassInfo.mStyleValue = GetFieldIDOrDie(env, axisClass, "mStyleValue", "F");
60 }
61
62 } // namespace android
63