Introduce FontFamily and its builder (88930f1d) · Commits · e / os / android_frameworks_base

api/current.txt

+11 −0

Original line number	Diff line number	Diff line
		@@ -15211,6 +15211,17 @@ package android.graphics.fonts {
		method public android.graphics.fonts.Font.Builder setWeight(int);
		}

		public class FontFamily {
		method public android.graphics.fonts.Font getFont(int);
		method public int getFontCount();
		}

		public static class FontFamily.Builder {
		ctor public FontFamily.Builder(android.graphics.fonts.Font);
		method public android.graphics.fonts.FontFamily.Builder addFont(android.graphics.fonts.Font);
		method public android.graphics.fonts.FontFamily build();
		}

		public final class FontVariationAxis {
		ctor public FontVariationAxis(java.lang.String, float);
		method public static android.graphics.fonts.FontVariationAxis[] fromFontVariationSettings(java.lang.String);

core/jni/Android.bp

+1 −0

Original line number	Diff line number	Diff line
		@@ -155,6 +155,7 @@ cc_library_shared {
		"android/graphics/Utils.cpp",
		"android/graphics/YuvToJpegEncoder.cpp",
		"android/graphics/fonts/Font.cpp",
		"android/graphics/fonts/FontFamily.cpp",
		"android/graphics/pdf/PdfDocument.cpp",
		"android/graphics/pdf/PdfEditor.cpp",
		"android/graphics/pdf/PdfRenderer.cpp",

core/jni/AndroidRuntime.cpp

+2 −0

Original line number	Diff line number	Diff line
		@@ -141,6 +141,7 @@ extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
		extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env);
		extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
		extern int register_android_graphics_fonts_Font(JNIEnv* env);
		extern int register_android_graphics_fonts_FontFamily(JNIEnv* env);
		extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
		extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
		extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
		@@ -1408,6 +1409,7 @@ static const RegJNIRec gRegJNI[] = {
		REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),
		REG_JNI(register_android_graphics_drawable_VectorDrawable),
		REG_JNI(register_android_graphics_fonts_Font),
		REG_JNI(register_android_graphics_fonts_FontFamily),
		REG_JNI(register_android_graphics_pdf_PdfDocument),
		REG_JNI(register_android_graphics_pdf_PdfEditor),
		REG_JNI(register_android_graphics_pdf_PdfRenderer),

core/jni/android/graphics/fonts/FontFamily.cpp

0 → 100644

+90 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2018 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.
		*/

		#define LOG_TAG "Minikin"

		#include <nativehelper/JNIHelp.h>
		#include <core_jni_helpers.h>

		#include "FontUtils.h"

		#include <minikin/FontFamily.h>

		#include <memory>

		namespace android {

		struct NativeFamilyBuilder {
		std::vector<minikin::Font> fonts;
		};

		static inline NativeFamilyBuilder* toBuilder(jlong ptr) {
		return reinterpret_cast<NativeFamilyBuilder*>(ptr);
		}

		static inline FontWrapper* toFontWrapper(jlong ptr) {
		return reinterpret_cast<FontWrapper*>(ptr);
		}

		static void releaseFontFamily(jlong family) {
		delete reinterpret_cast<FontFamilyWrapper*>(family);
		}

		// Regular JNI
		static jlong FontFamily_Builder_initBuilder(JNIEnv*, jobject) {
		return reinterpret_cast<jlong>(new NativeFamilyBuilder());
		}

		// Critical Native
		static void FontFamily_Builder_addFont(jlong builderPtr, jlong fontPtr) {
		toBuilder(builderPtr)->fonts.push_back(toFontWrapper(fontPtr)->font);
		}

		// Regular JNI
		static jlong FontFamily_Builder_build(JNIEnv* env, jobject clazz, jlong builderPtr) {
		std::unique_ptr<NativeFamilyBuilder> builder(toBuilder(builderPtr));
		std::shared_ptr<minikin::FontFamily> family =
		std::make_shared<minikin::FontFamily>(std::move(builder->fonts));
		if (family->getCoverage().length() == 0) {
		// No coverage means minikin rejected given font for some reasons.
		jniThrowException(env, "java/lang/IllegalArgumentException",
		"Failed to create internal object. maybe invalid font data");
		return 0;
		}
		return reinterpret_cast<jlong>(new FontFamilyWrapper(std::move(family)));
		}

		// CriticalNative
		static jlong FontFamily_Builder_GetReleaseFunc() {
		return reinterpret_cast<jlong>(releaseFontFamily);
		}

		///////////////////////////////////////////////////////////////////////////////

		static const JNINativeMethod gFontFamilyBuilderMethods[] = {
		{ "nInitBuilder", "()J", (void*) FontFamily_Builder_initBuilder },
		{ "nAddFont", "(JJ)V", (void*) FontFamily_Builder_addFont },
		{ "nBuild", "(J)J", (void*) FontFamily_Builder_build },

		{ "nGetReleaseNativeFamily", "()J", (void*) FontFamily_Builder_GetReleaseFunc },
		};

		int register_android_graphics_fonts_FontFamily(JNIEnv* env) {
		return RegisterMethodsOrDie(env, "android/graphics/fonts/FontFamily$Builder",
		gFontFamilyBuilderMethods, NELEM(gFontFamilyBuilderMethods));
		}

		}

graphics/java/android/graphics/fonts/Font.java

+5 −0

Original line number	Diff line number	Diff line
		@@ -469,4 +469,9 @@ public class Font {
		public long getNativePtr() {
		return mNativePtr;
		}

		@Override
		public String toString() {
		return "Font {weight=" + mWeight + ", italic=" + mItalic + "}";
		}
		}