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