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 <nativehelper/JNIHelp.h> 20 #include <core_jni_helpers.h> 21 22 namespace android { 23 namespace { 24 25 static struct { 26 jmethodID mGet; 27 jmethodID mSize; 28 } gListClassInfo; 29 30 static struct { 31 jfieldID mTag; 32 jfieldID mStyleValue; 33 } gAxisClassInfo; 34 35 } // namespace 36 37 jint ListHelper::size() const { 38 return mEnv->CallIntMethod(mList, gListClassInfo.mSize); 39 } 40 41 jobject ListHelper::get(jint index) const { 42 return mEnv->CallObjectMethod(mList, gListClassInfo.mGet, index); 43 } 44 45 jint AxisHelper::getTag() const { 46 return mEnv->GetIntField(mAxis, gAxisClassInfo.mTag); 47 } 48 49 jfloat AxisHelper::getStyleValue() const { 50 return mEnv->GetFloatField(mAxis, gAxisClassInfo.mStyleValue); 51 } 52 53 void init_FontUtils(JNIEnv* env) { 54 jclass listClass = FindClassOrDie(env, "java/util/List"); 55 gListClassInfo.mGet = GetMethodIDOrDie(env, listClass, "get", "(I)Ljava/lang/Object;"); 56 gListClassInfo.mSize = GetMethodIDOrDie(env, listClass, "size", "()I"); 57 58 jclass axisClass = FindClassOrDie(env, "android/graphics/fonts/FontVariationAxis"); 59 gAxisClassInfo.mTag = GetFieldIDOrDie(env, axisClass, "mTag", "I"); 60 gAxisClassInfo.mStyleValue = GetFieldIDOrDie(env, axisClass, "mStyleValue", "F"); 61 } 62 63 } // namespace android 64
