Typeface.cpp revision 117cbebe810613d4a6de034f02652cdbbfef4cde
1/* 2 * Copyright (C) 2013 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 "jni.h" 18#include <android_runtime/AndroidRuntime.h> 19 20#include "GraphicsJNI.h" 21#include <ScopedPrimitiveArray.h> 22#include "SkStream.h" 23#include "SkTypeface.h" 24#include "TypefaceImpl.h" 25#include <android_runtime/android_util_AssetManager.h> 26#include <androidfw/AssetManager.h> 27 28using namespace android; 29 30static jlong Typeface_createFromTypeface(JNIEnv* env, jobject, jlong familyHandle, jint style) { 31 TypefaceImpl* family = reinterpret_cast<TypefaceImpl*>(familyHandle); 32 TypefaceImpl* face = TypefaceImpl_createFromTypeface(family, (SkTypeface::Style)style); 33 // TODO: the following logic shouldn't be necessary, the above should always succeed. 34 // Try to find the closest matching font, using the standard heuristic 35 if (NULL == face) { 36 face = TypefaceImpl_createFromTypeface(family, (SkTypeface::Style)(style ^ SkTypeface::kItalic)); 37 } 38 for (int i = 0; NULL == face && i < 4; i++) { 39 face = TypefaceImpl_createFromTypeface(family, (SkTypeface::Style)i); 40 } 41 return reinterpret_cast<jlong>(face); 42} 43 44static jlong Typeface_createWeightAlias(JNIEnv* env, jobject, jlong familyHandle, jint weight) { 45 TypefaceImpl* family = reinterpret_cast<TypefaceImpl*>(familyHandle); 46 TypefaceImpl* face = TypefaceImpl_createWeightAlias(family, weight); 47 return reinterpret_cast<jlong>(face); 48} 49 50static void Typeface_unref(JNIEnv* env, jobject obj, jlong faceHandle) { 51 TypefaceImpl* face = reinterpret_cast<TypefaceImpl*>(faceHandle); 52 TypefaceImpl_unref(face); 53} 54 55static jint Typeface_getStyle(JNIEnv* env, jobject obj, jlong faceHandle) { 56 TypefaceImpl* face = reinterpret_cast<TypefaceImpl*>(faceHandle); 57 return TypefaceImpl_getStyle(face); 58} 59 60static jlong Typeface_createFromArray(JNIEnv *env, jobject, jlongArray familyArray) { 61 ScopedLongArrayRO families(env, familyArray); 62 return reinterpret_cast<jlong>(TypefaceImpl_createFromFamilies(families.get(), families.size())); 63} 64 65static void Typeface_setDefault(JNIEnv *env, jobject, jlong faceHandle) { 66 TypefaceImpl* face = reinterpret_cast<TypefaceImpl*>(faceHandle); 67 return TypefaceImpl_setDefault(face); 68} 69 70/////////////////////////////////////////////////////////////////////////////// 71 72static JNINativeMethod gTypefaceMethods[] = { 73 { "nativeCreateFromTypeface", "(JI)J", (void*)Typeface_createFromTypeface }, 74 { "nativeCreateWeightAlias", "(JI)J", (void*)Typeface_createWeightAlias }, 75 { "nativeUnref", "(J)V", (void*)Typeface_unref }, 76 { "nativeGetStyle", "(J)I", (void*)Typeface_getStyle }, 77 { "nativeCreateFromArray", "([J)J", 78 (void*)Typeface_createFromArray }, 79 { "nativeSetDefault", "(J)V", (void*)Typeface_setDefault }, 80}; 81 82int register_android_graphics_Typeface(JNIEnv* env) 83{ 84 return android::AndroidRuntime::registerNativeMethods(env, 85 "android/graphics/Typeface", 86 gTypefaceMethods, 87 SK_ARRAY_COUNT(gTypefaceMethods)); 88} 89