| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "jni.h" |
| #include "core_jni_helpers.h" |
| |
| #include "FontUtils.h" |
| #include "GraphicsJNI.h" |
| #include "ScopedPrimitiveArray.h" |
| #include "SkTypeface.h" |
| #include <android_runtime/android_util_AssetManager.h> |
| #include <androidfw/AssetManager.h> |
| #include <hwui/Typeface.h> |
| #include <minikin/FontFamily.h> |
| |
| using namespace android; |
| |
| static jlong Typeface_createFromTypeface(JNIEnv* env, jobject, jlong familyHandle, jint style) { |
| Typeface* family = reinterpret_cast<Typeface*>(familyHandle); |
| Typeface* face = Typeface::createRelative(family, (SkTypeface::Style)style); |
| // TODO: the following logic shouldn't be necessary, the above should always succeed. |
| // Try to find the closest matching font, using the standard heuristic |
| if (NULL == face) { |
| face = Typeface::createRelative(family, (SkTypeface::Style)(style ^ SkTypeface::kItalic)); |
| } |
| for (int i = 0; NULL == face && i < 4; i++) { |
| face = Typeface::createRelative(family, (SkTypeface::Style)i); |
| } |
| return reinterpret_cast<jlong>(face); |
| } |
| |
| static jlong Typeface_createFromTypefaceWithExactStyle(JNIEnv* env, jobject, jlong nativeInstance, |
| jint weight, jboolean italic) { |
| Typeface* baseTypeface = reinterpret_cast<Typeface*>(nativeInstance); |
| return reinterpret_cast<jlong>(Typeface::createAbsolute(baseTypeface, weight, italic)); |
| } |
| |
| static jlong Typeface_createFromTypefaceWithVariation(JNIEnv* env, jobject, jlong familyHandle, |
| jobject listOfAxis) { |
| std::vector<minikin::FontVariation> variations; |
| ListHelper list(env, listOfAxis); |
| for (jint i = 0; i < list.size(); i++) { |
| jobject axisObject = list.get(i); |
| if (axisObject == nullptr) { |
| continue; |
| } |
| AxisHelper axis(env, axisObject); |
| variations.push_back(minikin::FontVariation(axis.getTag(), axis.getStyleValue())); |
| } |
| Typeface* baseTypeface = reinterpret_cast<Typeface*>(familyHandle); |
| Typeface* result = Typeface::createFromTypefaceWithVariation(baseTypeface, variations); |
| return reinterpret_cast<jlong>(result); |
| } |
| |
| static jlong Typeface_createWeightAlias(JNIEnv* env, jobject, jlong familyHandle, jint weight) { |
| Typeface* family = reinterpret_cast<Typeface*>(familyHandle); |
| Typeface* face = Typeface::createWithDifferentBaseWeight(family, weight); |
| return reinterpret_cast<jlong>(face); |
| } |
| |
| static void Typeface_unref(JNIEnv* env, jobject obj, jlong faceHandle) { |
| Typeface* face = reinterpret_cast<Typeface*>(faceHandle); |
| delete face; |
| } |
| |
| static jint Typeface_getStyle(JNIEnv* env, jobject obj, jlong faceHandle) { |
| Typeface* face = reinterpret_cast<Typeface*>(faceHandle); |
| return face->fSkiaStyle; |
| } |
| |
| static jint Typeface_getWeight(JNIEnv* env, jobject obj, jlong faceHandle) { |
| Typeface* face = reinterpret_cast<Typeface*>(faceHandle); |
| return face->fStyle.getWeight() * 100; |
| } |
| |
| static jlong Typeface_createFromArray(JNIEnv *env, jobject, jlongArray familyArray, |
| int weight, int italic) { |
| ScopedLongArrayRO families(env, familyArray); |
| std::vector<std::shared_ptr<minikin::FontFamily>> familyVec; |
| familyVec.reserve(families.size()); |
| for (size_t i = 0; i < families.size(); i++) { |
| FontFamilyWrapper* family = reinterpret_cast<FontFamilyWrapper*>(families[i]); |
| familyVec.emplace_back(family->family); |
| } |
| return reinterpret_cast<jlong>( |
| Typeface::createFromFamilies(std::move(familyVec), weight, italic)); |
| } |
| |
| static void Typeface_setDefault(JNIEnv *env, jobject, jlong faceHandle) { |
| Typeface* face = reinterpret_cast<Typeface*>(faceHandle); |
| Typeface::setDefault(face); |
| } |
| |
| static jobject Typeface_getSupportedAxes(JNIEnv *env, jobject, jlong faceHandle) { |
| Typeface* face = reinterpret_cast<Typeface*>(faceHandle); |
| const std::unordered_set<minikin::AxisTag>& tagSet = face->fFontCollection->getSupportedTags(); |
| const size_t length = tagSet.size(); |
| if (length == 0) { |
| return nullptr; |
| } |
| std::vector<jint> tagVec(length); |
| int index = 0; |
| for (const auto& tag : tagSet) { |
| tagVec[index++] = tag; |
| } |
| std::sort(tagVec.begin(), tagVec.end()); |
| const jintArray result = env->NewIntArray(length); |
| env->SetIntArrayRegion(result, 0, length, tagVec.data()); |
| return result; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static const JNINativeMethod gTypefaceMethods[] = { |
| { "nativeCreateFromTypeface", "(JI)J", (void*)Typeface_createFromTypeface }, |
| { "nativeCreateFromTypefaceWithExactStyle", "(JIZ)J", |
| (void*)Typeface_createFromTypefaceWithExactStyle }, |
| { "nativeCreateFromTypefaceWithVariation", "(JLjava/util/List;)J", |
| (void*)Typeface_createFromTypefaceWithVariation }, |
| { "nativeCreateWeightAlias", "(JI)J", (void*)Typeface_createWeightAlias }, |
| { "nativeUnref", "(J)V", (void*)Typeface_unref }, |
| { "nativeGetStyle", "(J)I", (void*)Typeface_getStyle }, |
| { "nativeGetWeight", "(J)I", (void*)Typeface_getWeight }, |
| { "nativeCreateFromArray", "([JII)J", |
| (void*)Typeface_createFromArray }, |
| { "nativeSetDefault", "(J)V", (void*)Typeface_setDefault }, |
| { "nativeGetSupportedAxes", "(J)[I", (void*)Typeface_getSupportedAxes }, |
| }; |
| |
| int register_android_graphics_Typeface(JNIEnv* env) |
| { |
| return RegisterMethodsOrDie(env, "android/graphics/Typeface", gTypefaceMethods, |
| NELEM(gTypefaceMethods)); |
| } |