Paint.cpp revision 53c0077256afebb0312f01ef4f60a7445da1f5d9
1b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik/* libs/android_runtime/android/graphics/Paint.cpp 2b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** 3b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** Copyright 2006, The Android Open Source Project 4b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** 5b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** Licensed under the Apache License, Version 2.0 (the "License"); 6b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** you may not use this file except in compliance with the License. 7b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** You may obtain a copy of the License at 8b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** 9b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** http://www.apache.org/licenses/LICENSE-2.0 10b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** 11b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** Unless required by applicable law or agreed to in writing, software 12b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** distributed under the License is distributed on an "AS IS" BASIS, 13b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** See the License for the specific language governing permissions and 15b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik** limitations under the License. 16b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik*/ 17b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik 18b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik#define LOG_TAG "Paint" 19b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik 20b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik#include <utils/Log.h> 21b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik 229fded232a9548a304e0145011df8849fba0dcda7Chris Craik#include "jni.h" 23b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik#include "GraphicsJNI.h" 24b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik#include <android_runtime/AndroidRuntime.h> 259fded232a9548a304e0145011df8849fba0dcda7Chris Craik#include <ScopedUtfChars.h> 26b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik 27a1717271caac5e8ea3808c331d4141ac01a42134Chris Craik#include "SkBlurDrawLooper.h" 28a1717271caac5e8ea3808c331d4141ac01a42134Chris Craik#include "SkColorFilter.h" 29b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik#include "SkMaskFilter.h" 30b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik#include "SkRasterizer.h" 31b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik#include "SkShader.h" 32d3daa3198e2212c985c634821682d5819346b653Chris Craik#include "SkTypeface.h" 339fded232a9548a304e0145011df8849fba0dcda7Chris Craik#include "SkXfermode.h" 349fded232a9548a304e0145011df8849fba0dcda7Chris Craik#include "unicode/uloc.h" 359fded232a9548a304e0145011df8849fba0dcda7Chris Craik#include "unicode/ushape.h" 3698787e6c9b2c10b1ab7820bdac168686025b924aChris Craik#include "TextLayout.h" 370b7e8245db728d127ada698be63d78b33fc6e4daChris Craik 380b7e8245db728d127ada698be63d78b33fc6e4daChris Craik// temporary for debugging 390b7e8245db728d127ada698be63d78b33fc6e4daChris Craik#include <Caches.h> 4098787e6c9b2c10b1ab7820bdac168686025b924aChris Craik#include <utils/Log.h> 41d3daa3198e2212c985c634821682d5819346b653Chris Craik 42d3daa3198e2212c985c634821682d5819346b653Chris Craiknamespace android { 430b7e8245db728d127ada698be63d78b33fc6e4daChris Craik 44818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craikstruct JMetricsID { 455854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik jfieldID top; 465854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik jfieldID ascent; 475854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik jfieldID descent; 48818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik jfieldID bottom; 49818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik jfieldID leading; 50818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik}; 510b7e8245db728d127ada698be63d78b33fc6e4daChris Craik 52818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craikstatic jclass gFontMetrics_class; 53818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craikstatic JMetricsID gFontMetrics_fieldID; 54818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik 55818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craikstatic jclass gFontMetricsInt_class; 56818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craikstatic JMetricsID gFontMetricsInt_fieldID; 570b7e8245db728d127ada698be63d78b33fc6e4daChris Craik 5898787e6c9b2c10b1ab7820bdac168686025b924aChris Craikstatic void defaultSettingsForAndroid(SkPaint* paint) { 5998787e6c9b2c10b1ab7820bdac168686025b924aChris Craik // GlyphID encoding is required because we are using Harfbuzz shaping 60818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik paint->setTextEncoding(SkPaint::kGlyphID_TextEncoding); 61818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik 625854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik SkPaintOptionsAndroid paintOpts = paint->getPaintOptionsAndroid(); 63e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik paintOpts.setUseFontFallbacks(true); 64e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik paint->setPaintOptionsAndroid(paintOpts); 65e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik} 66e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik 67e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craikclass SkPaintGlue { 68e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craikpublic: 69e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik enum MoveOpt { 70e4db79de127cfe961195f52907af8451026eaa20Chris Craik AFTER, AT_OR_AFTER, BEFORE, AT_OR_BEFORE, AT 71818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik }; 72e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik 73e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik static void finalizer(JNIEnv* env, jobject clazz, jlong objHandle) { 74e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 75818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik delete obj; 76818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik } 77818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik 785854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik static jlong init(JNIEnv* env, jobject clazz) { 79e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint* obj = new SkPaint(); 80818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik defaultSettingsForAndroid(obj); 81818c9fbf1d76d5df19253ba4eb964efa939ec9ecChris Craik return reinterpret_cast<jlong>(obj); 827435eb148e72382126e9073183e881357bb38a8bChris Craik } 837435eb148e72382126e9073183e881357bb38a8bChris Craik 847435eb148e72382126e9073183e881357bb38a8bChris Craik static jlong initWithPaint(JNIEnv* env, jobject clazz, jlong paintHandle) { 857435eb148e72382126e9073183e881357bb38a8bChris Craik SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 867435eb148e72382126e9073183e881357bb38a8bChris Craik SkPaint* obj = new SkPaint(*paint); 877435eb148e72382126e9073183e881357bb38a8bChris Craik return reinterpret_cast<jlong>(obj); 887435eb148e72382126e9073183e881357bb38a8bChris Craik } 897435eb148e72382126e9073183e881357bb38a8bChris Craik 907435eb148e72382126e9073183e881357bb38a8bChris Craik static void reset(JNIEnv* env, jobject clazz, jlong objHandle) { 917435eb148e72382126e9073183e881357bb38a8bChris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 927435eb148e72382126e9073183e881357bb38a8bChris Craik obj->reset(); 937435eb148e72382126e9073183e881357bb38a8bChris Craik defaultSettingsForAndroid(obj); 947435eb148e72382126e9073183e881357bb38a8bChris Craik } 957435eb148e72382126e9073183e881357bb38a8bChris Craik 9698787e6c9b2c10b1ab7820bdac168686025b924aChris Craik static void assign(JNIEnv* env, jobject clazz, jlong dstPaintHandle, jlong srcPaintHandle) { 97e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint* dst = reinterpret_cast<SkPaint*>(dstPaintHandle); 985854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik const SkPaint* src = reinterpret_cast<SkPaint*>(srcPaintHandle); 995854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik *dst = *src; 100b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik } 1015854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik 10298787e6c9b2c10b1ab7820bdac168686025b924aChris Craik static jint getFlags(JNIEnv* env, jobject paint) { 103b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik NPE_CHECK_RETURN_ZERO(env, paint); 104e4db79de127cfe961195f52907af8451026eaa20Chris Craik int result; 105e4db79de127cfe961195f52907af8451026eaa20Chris Craik result = GraphicsJNI::getNativePaint(env, paint)->getFlags(); 106b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik return static_cast<jint>(result); 1075854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik } 108e4db79de127cfe961195f52907af8451026eaa20Chris Craik 109e4db79de127cfe961195f52907af8451026eaa20Chris Craik static void setFlags(JNIEnv* env, jobject paint, jint flags) { 110e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_VOID(env, paint); 111e4db79de127cfe961195f52907af8451026eaa20Chris Craik GraphicsJNI::getNativePaint(env, paint)->setFlags(flags); 112e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 113e4db79de127cfe961195f52907af8451026eaa20Chris Craik 114e4db79de127cfe961195f52907af8451026eaa20Chris Craik static jint getHinting(JNIEnv* env, jobject paint) { 115e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_ZERO(env, paint); 116e4db79de127cfe961195f52907af8451026eaa20Chris Craik return GraphicsJNI::getNativePaint(env, paint)->getHinting() 117e4db79de127cfe961195f52907af8451026eaa20Chris Craik == SkPaint::kNo_Hinting ? 0 : 1; 118e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 119e4db79de127cfe961195f52907af8451026eaa20Chris Craik 120e4db79de127cfe961195f52907af8451026eaa20Chris Craik static void setHinting(JNIEnv* env, jobject paint, jint mode) { 121e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_VOID(env, paint); 122e4db79de127cfe961195f52907af8451026eaa20Chris Craik GraphicsJNI::getNativePaint(env, paint)->setHinting( 123e4db79de127cfe961195f52907af8451026eaa20Chris Craik mode == 0 ? SkPaint::kNo_Hinting : SkPaint::kNormal_Hinting); 124e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 125e4db79de127cfe961195f52907af8451026eaa20Chris Craik 126e4db79de127cfe961195f52907af8451026eaa20Chris Craik static void setAntiAlias(JNIEnv* env, jobject paint, jboolean aa) { 127e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_VOID(env, paint); 128e4db79de127cfe961195f52907af8451026eaa20Chris Craik GraphicsJNI::getNativePaint(env, paint)->setAntiAlias(aa); 129e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 130e4db79de127cfe961195f52907af8451026eaa20Chris Craik 131e4db79de127cfe961195f52907af8451026eaa20Chris Craik static void setLinearText(JNIEnv* env, jobject paint, jboolean linearText) { 132e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_VOID(env, paint); 133e4db79de127cfe961195f52907af8451026eaa20Chris Craik GraphicsJNI::getNativePaint(env, paint)->setLinearText(linearText); 134e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 135e4db79de127cfe961195f52907af8451026eaa20Chris Craik 136e4db79de127cfe961195f52907af8451026eaa20Chris Craik static void setSubpixelText(JNIEnv* env, jobject paint, jboolean subpixelText) { 137e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik NPE_CHECK_RETURN_VOID(env, paint); 1385854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik GraphicsJNI::getNativePaint(env, paint)->setSubpixelText(subpixelText); 1395854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik } 140b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik 141b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik static void setUnderlineText(JNIEnv* env, jobject paint, jboolean underlineText) { 142b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik NPE_CHECK_RETURN_VOID(env, paint); 143b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik GraphicsJNI::getNativePaint(env, paint)->setUnderlineText(underlineText); 144b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik } 145b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik 1465854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik static void setStrikeThruText(JNIEnv* env, jobject paint, jboolean strikeThruText) { 147b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik NPE_CHECK_RETURN_VOID(env, paint); 148b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik GraphicsJNI::getNativePaint(env, paint)->setStrikeThruText(strikeThruText); 1495854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik } 150b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik 151b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik static void setFakeBoldText(JNIEnv* env, jobject paint, jboolean fakeBoldText) { 152b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik NPE_CHECK_RETURN_VOID(env, paint); 153b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik GraphicsJNI::getNativePaint(env, paint)->setFakeBoldText(fakeBoldText); 1545854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik } 1555854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik 1565854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik static void setFilterBitmap(JNIEnv* env, jobject paint, jboolean filterBitmap) { 1575854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik NPE_CHECK_RETURN_VOID(env, paint); 1585854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik GraphicsJNI::getNativePaint(env, paint)->setFilterLevel( 1595854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik filterBitmap ? SkPaint::kLow_FilterLevel : SkPaint::kNone_FilterLevel); 1605854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik } 1615854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik 1625854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik static void setDither(JNIEnv* env, jobject paint, jboolean dither) { 16398787e6c9b2c10b1ab7820bdac168686025b924aChris Craik NPE_CHECK_RETURN_VOID(env, paint); 16484ad6149db0e1dc98ed3778ee4fc2ab685765d9aChris Craik GraphicsJNI::getNativePaint(env, paint)->setDither(dither); 16598787e6c9b2c10b1ab7820bdac168686025b924aChris Craik } 16698787e6c9b2c10b1ab7820bdac168686025b924aChris Craik 16798787e6c9b2c10b1ab7820bdac168686025b924aChris Craik static jint getStyle(JNIEnv* env, jobject clazz,jlong objHandle) { 16898787e6c9b2c10b1ab7820bdac168686025b924aChris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 16998787e6c9b2c10b1ab7820bdac168686025b924aChris Craik return static_cast<jint>(obj->getStyle()); 17098787e6c9b2c10b1ab7820bdac168686025b924aChris Craik } 17198787e6c9b2c10b1ab7820bdac168686025b924aChris Craik 17298787e6c9b2c10b1ab7820bdac168686025b924aChris Craik static void setStyle(JNIEnv* env, jobject clazz, jlong objHandle, jint styleHandle) { 17398787e6c9b2c10b1ab7820bdac168686025b924aChris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 17498787e6c9b2c10b1ab7820bdac168686025b924aChris Craik SkPaint::Style style = static_cast<SkPaint::Style>(styleHandle); 17598787e6c9b2c10b1ab7820bdac168686025b924aChris Craik obj->setStyle(style); 17698787e6c9b2c10b1ab7820bdac168686025b924aChris Craik } 1775854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik 17815c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik static jint getColor(JNIEnv* env, jobject paint) { 1795854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik NPE_CHECK_RETURN_ZERO(env, paint); 1805854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik int color; 1815854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik color = GraphicsJNI::getNativePaint(env, paint)->getColor(); 1825854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik return static_cast<jint>(color); 1835854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik } 1845854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik 185e4db79de127cfe961195f52907af8451026eaa20Chris Craik static jint getAlpha(JNIEnv* env, jobject paint) { 186e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_ZERO(env, paint); 187e4db79de127cfe961195f52907af8451026eaa20Chris Craik int alpha; 188e4db79de127cfe961195f52907af8451026eaa20Chris Craik alpha = GraphicsJNI::getNativePaint(env, paint)->getAlpha(); 189e4db79de127cfe961195f52907af8451026eaa20Chris Craik return static_cast<jint>(alpha); 190e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 191e4db79de127cfe961195f52907af8451026eaa20Chris Craik 192e4db79de127cfe961195f52907af8451026eaa20Chris Craik static void setColor(JNIEnv* env, jobject paint, jint color) { 193e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_VOID(env, paint); 194e4db79de127cfe961195f52907af8451026eaa20Chris Craik GraphicsJNI::getNativePaint(env, paint)->setColor(color); 195e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 196e4db79de127cfe961195f52907af8451026eaa20Chris Craik 197e4db79de127cfe961195f52907af8451026eaa20Chris Craik static void setAlpha(JNIEnv* env, jobject paint, jint a) { 198e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_VOID(env, paint); 199e4db79de127cfe961195f52907af8451026eaa20Chris Craik GraphicsJNI::getNativePaint(env, paint)->setAlpha(a); 200e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 201e4db79de127cfe961195f52907af8451026eaa20Chris Craik 202e4db79de127cfe961195f52907af8451026eaa20Chris Craik static jfloat getStrokeWidth(JNIEnv* env, jobject paint) { 203e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_ZERO(env, paint); 20415f046866cb650d78f55d03327cfa4a474fc9471Chris Craik return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getStrokeWidth()); 205e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 206e4db79de127cfe961195f52907af8451026eaa20Chris Craik 207e4db79de127cfe961195f52907af8451026eaa20Chris Craik static void setStrokeWidth(JNIEnv* env, jobject paint, jfloat width) { 208e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_VOID(env, paint); 209e4db79de127cfe961195f52907af8451026eaa20Chris Craik GraphicsJNI::getNativePaint(env, paint)->setStrokeWidth(width); 210e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 211e4db79de127cfe961195f52907af8451026eaa20Chris Craik 212e4db79de127cfe961195f52907af8451026eaa20Chris Craik static jfloat getStrokeMiter(JNIEnv* env, jobject paint) { 213e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_ZERO(env, paint); 214e4db79de127cfe961195f52907af8451026eaa20Chris Craik return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getStrokeMiter()); 215e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 216e4db79de127cfe961195f52907af8451026eaa20Chris Craik 217e4db79de127cfe961195f52907af8451026eaa20Chris Craik static void setStrokeMiter(JNIEnv* env, jobject paint, jfloat miter) { 218e4db79de127cfe961195f52907af8451026eaa20Chris Craik NPE_CHECK_RETURN_VOID(env, paint); 219e4db79de127cfe961195f52907af8451026eaa20Chris Craik GraphicsJNI::getNativePaint(env, paint)->setStrokeMiter(miter); 220e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 221e4db79de127cfe961195f52907af8451026eaa20Chris Craik 222e4db79de127cfe961195f52907af8451026eaa20Chris Craik static jint getStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle) { 223e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 224e4db79de127cfe961195f52907af8451026eaa20Chris Craik return static_cast<jint>(obj->getStrokeCap()); 225e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 226e4db79de127cfe961195f52907af8451026eaa20Chris Craik 227e4db79de127cfe961195f52907af8451026eaa20Chris Craik static void setStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle, jint capHandle) { 228e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 229e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint::Cap cap = static_cast<SkPaint::Cap>(capHandle); 230e4db79de127cfe961195f52907af8451026eaa20Chris Craik obj->setStrokeCap(cap); 231e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 232e4db79de127cfe961195f52907af8451026eaa20Chris Craik 233e4db79de127cfe961195f52907af8451026eaa20Chris Craik static jint getStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle) { 234e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 235e4db79de127cfe961195f52907af8451026eaa20Chris Craik return static_cast<jint>(obj->getStrokeJoin()); 236e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 237e4db79de127cfe961195f52907af8451026eaa20Chris Craik 23815f046866cb650d78f55d03327cfa4a474fc9471Chris Craik static void setStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle, jint joinHandle) { 239e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 240e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint::Join join = (SkPaint::Join) joinHandle; 241e4db79de127cfe961195f52907af8451026eaa20Chris Craik obj->setStrokeJoin(join); 242e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 243e4db79de127cfe961195f52907af8451026eaa20Chris Craik 244e4db79de127cfe961195f52907af8451026eaa20Chris Craik static jboolean getFillPath(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle, jlong dstHandle) { 245e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 246e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPath* src = reinterpret_cast<SkPath*>(srcHandle); 247e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPath* dst = reinterpret_cast<SkPath*>(dstHandle); 248e4db79de127cfe961195f52907af8451026eaa20Chris Craik return obj->getFillPath(*src, dst) ? JNI_TRUE : JNI_FALSE; 249e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 250e4db79de127cfe961195f52907af8451026eaa20Chris Craik 251e4db79de127cfe961195f52907af8451026eaa20Chris Craik static jlong setShader(JNIEnv* env, jobject clazz, jlong objHandle, jlong shaderHandle) { 252e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 253e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkShader* shader = reinterpret_cast<SkShader*>(shaderHandle); 254e4db79de127cfe961195f52907af8451026eaa20Chris Craik return reinterpret_cast<jlong>(obj->setShader(shader)); 255b87eadda1818034ce03d85f30388384d1ac65916Chris Craik } 25615c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik 25715c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik static jlong setColorFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong filterHandle) { 258e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint* obj = reinterpret_cast<SkPaint *>(objHandle); 259e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkColorFilter* filter = reinterpret_cast<SkColorFilter *>(filterHandle); 260e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik return reinterpret_cast<jlong>(obj->setColorFilter(filter)); 261b87eadda1818034ce03d85f30388384d1ac65916Chris Craik } 262e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik 263e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik static jlong setXfermode(JNIEnv* env, jobject clazz, jlong objHandle, jlong xfermodeHandle) { 264e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 265e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkXfermode* xfermode = reinterpret_cast<SkXfermode*>(xfermodeHandle); 266e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik return reinterpret_cast<jlong>(obj->setXfermode(xfermode)); 267e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik } 268e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik 269e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik static jlong setPathEffect(JNIEnv* env, jobject clazz, jlong objHandle, jlong effectHandle) { 270e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 271e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkPathEffect* effect = reinterpret_cast<SkPathEffect*>(effectHandle); 272e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik return reinterpret_cast<jlong>(obj->setPathEffect(effect)); 273e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik } 274e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik 275e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik static jlong setMaskFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong maskfilterHandle) { 276e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 277e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkMaskFilter* maskfilter = reinterpret_cast<SkMaskFilter*>(maskfilterHandle); 278e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik return reinterpret_cast<jlong>(obj->setMaskFilter(maskfilter)); 279e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik } 280e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik 281e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik static jlong setTypeface(JNIEnv* env, jobject clazz, jlong objHandle, jlong typefaceHandle) { 282e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik#ifndef USE_MINIKIN 283e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 284e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkTypeface* typeface = reinterpret_cast<SkTypeface*>(typefaceHandle); 285e4db79de127cfe961195f52907af8451026eaa20Chris Craik return reinterpret_cast<jlong>(obj->setTypeface(typeface)); 286e4db79de127cfe961195f52907af8451026eaa20Chris Craik#else 287e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik // TODO(raph): not yet implemented 288e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik return NULL; 289e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik#endif 290e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik } 291e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik 292e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik static jlong setRasterizer(JNIEnv* env, jobject clazz, jlong objHandle, jlong rasterizerHandle) { 293e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 294e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik SkRasterizer* rasterizer = reinterpret_cast<SkRasterizer*>(rasterizerHandle); 295e4db79de127cfe961195f52907af8451026eaa20Chris Craik return reinterpret_cast<jlong>(obj->setRasterizer(rasterizer)); 296e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik } 297e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik 298e5b50197e870aa6d22c3893f5d25f4279f06e5c3Chris Craik static jint getTextAlign(JNIEnv* env, jobject clazz, jlong objHandle) { 299e4db79de127cfe961195f52907af8451026eaa20Chris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 3005854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik return static_cast<jint>(obj->getTextAlign()); 301e4db79de127cfe961195f52907af8451026eaa20Chris Craik } 302e4db79de127cfe961195f52907af8451026eaa20Chris Craik 30315c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik static void setTextAlign(JNIEnv* env, jobject clazz, jlong objHandle, jint alignHandle) { 3048d2cf943d9c7292e54726399faefdec4a01c084bChris Craik SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 30515c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik SkPaint::Align align = static_cast<SkPaint::Align>(alignHandle); 30615c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik obj->setTextAlign(align); 3078d2cf943d9c7292e54726399faefdec4a01c084bChris Craik } 3088d2cf943d9c7292e54726399faefdec4a01c084bChris Craik 309e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik // generate bcp47 identifier for the supplied locale 310e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik static void toLanguageTag(char* output, size_t outSize, 311e4db79de127cfe961195f52907af8451026eaa20Chris Craik const char* locale) { 312e4db79de127cfe961195f52907af8451026eaa20Chris Craik if (output == NULL || outSize <= 0) { 313e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik return; 3145854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik } 31598787e6c9b2c10b1ab7820bdac168686025b924aChris Craik if (locale == NULL) { 3165854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik output[0] = '\0'; 3175854b34881b1a747ac80b5077869ef270a92b1f4Chris Craik return; 318e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik } 319e4db79de127cfe961195f52907af8451026eaa20Chris Craik char canonicalChars[ULOC_FULLNAME_CAPACITY]; 320e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik UErrorCode uErr = U_ZERO_ERROR; 321e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik uloc_canonicalize(locale, canonicalChars, ULOC_FULLNAME_CAPACITY, 322e4db79de127cfe961195f52907af8451026eaa20Chris Craik &uErr); 323e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik if (U_SUCCESS(uErr)) { 324e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik char likelyChars[ULOC_FULLNAME_CAPACITY]; 325e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik uErr = U_ZERO_ERROR; 326e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik uloc_addLikelySubtags(canonicalChars, likelyChars, 327e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik ULOC_FULLNAME_CAPACITY, &uErr); 328e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik if (U_SUCCESS(uErr)) { 329e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik uErr = U_ZERO_ERROR; 330e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik uloc_toLanguageTag(likelyChars, output, outSize, FALSE, &uErr); 331e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik if (U_SUCCESS(uErr)) { 332e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik return; 333e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik } else { 334e29ce6f51d681af7649c0a7cddee97c471e43eb5Chris Craik ALOGD("uloc_toLanguageTag(\"%s\") failed: %s", likelyChars, 33515c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik u_errorName(uErr)); 33615c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik } 33715c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik } else { 33815c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik ALOGD("uloc_addLikelySubtags(\"%s\") failed: %s", 33915c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik canonicalChars, u_errorName(uErr)); 34015c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik } 34115c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik } else { 342b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik ALOGD("uloc_canonicalize(\"%s\") failed: %s", locale, 343b565df13a9e5c7b1d7d93bdfa4a793752d66d3ccChris Craik u_errorName(uErr)); 344 } 345 // unable to build a proper language identifier 346 output[0] = '\0'; 347 } 348 349 static void setTextLocale(JNIEnv* env, jobject clazz, jlong objHandle, jstring locale) { 350 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 351 ScopedUtfChars localeChars(env, locale); 352 char langTag[ULOC_FULLNAME_CAPACITY]; 353 toLanguageTag(langTag, ULOC_FULLNAME_CAPACITY, localeChars.c_str()); 354 355 SkPaintOptionsAndroid paintOpts = obj->getPaintOptionsAndroid(); 356 paintOpts.setLanguage(langTag); 357 obj->setPaintOptionsAndroid(paintOpts); 358 } 359 360 static jboolean isElegantTextHeight(JNIEnv* env, jobject paint) { 361 NPE_CHECK_RETURN_ZERO(env, paint); 362 SkPaint* obj = GraphicsJNI::getNativePaint(env, paint); 363 SkPaintOptionsAndroid paintOpts = obj->getPaintOptionsAndroid(); 364 return paintOpts.getFontVariant() == SkPaintOptionsAndroid::kElegant_Variant; 365 } 366 367 static void setElegantTextHeight(JNIEnv* env, jobject paint, jboolean aa) { 368 NPE_CHECK_RETURN_VOID(env, paint); 369 SkPaint* obj = GraphicsJNI::getNativePaint(env, paint); 370 SkPaintOptionsAndroid::FontVariant variant = 371 aa ? SkPaintOptionsAndroid::kElegant_Variant : 372 SkPaintOptionsAndroid::kDefault_Variant; 373 SkPaintOptionsAndroid paintOpts = obj->getPaintOptionsAndroid(); 374 paintOpts.setFontVariant(variant); 375 obj->setPaintOptionsAndroid(paintOpts); 376 } 377 378 static jfloat getTextSize(JNIEnv* env, jobject paint) { 379 NPE_CHECK_RETURN_ZERO(env, paint); 380 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextSize()); 381 } 382 383 static void setTextSize(JNIEnv* env, jobject paint, jfloat textSize) { 384 NPE_CHECK_RETURN_VOID(env, paint); 385 GraphicsJNI::getNativePaint(env, paint)->setTextSize(textSize); 386 } 387 388 static jfloat getTextScaleX(JNIEnv* env, jobject paint) { 389 NPE_CHECK_RETURN_ZERO(env, paint); 390 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextScaleX()); 391 } 392 393 static void setTextScaleX(JNIEnv* env, jobject paint, jfloat scaleX) { 394 NPE_CHECK_RETURN_VOID(env, paint); 395 GraphicsJNI::getNativePaint(env, paint)->setTextScaleX(scaleX); 396 } 397 398 static jfloat getTextSkewX(JNIEnv* env, jobject paint) { 399 NPE_CHECK_RETURN_ZERO(env, paint); 400 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextSkewX()); 401 } 402 403 static void setTextSkewX(JNIEnv* env, jobject paint, jfloat skewX) { 404 NPE_CHECK_RETURN_VOID(env, paint); 405 GraphicsJNI::getNativePaint(env, paint)->setTextSkewX(skewX); 406 } 407 408 static jfloat ascent(JNIEnv* env, jobject paint) { 409 NPE_CHECK_RETURN_ZERO(env, paint); 410 SkPaint::FontMetrics metrics; 411 (void)GraphicsJNI::getNativePaint(env, paint)->getFontMetrics(&metrics); 412 return SkScalarToFloat(metrics.fAscent); 413 } 414 415 static jfloat descent(JNIEnv* env, jobject paint) { 416 NPE_CHECK_RETURN_ZERO(env, paint); 417 SkPaint::FontMetrics metrics; 418 (void)GraphicsJNI::getNativePaint(env, paint)->getFontMetrics(&metrics); 419 return SkScalarToFloat(metrics.fDescent); 420 } 421 422 static SkScalar getMetricsInternal(SkPaint *paint, SkPaint::FontMetrics *metrics) { 423 const int kElegantTop = 2500; 424 const int kElegantBottom = -1000; 425 const int kElegantAscent = 1946; 426 const int kElegantDescent = -512; 427 const int kElegantLeading = 0; 428 SkScalar spacing = paint->getFontMetrics(metrics); 429 SkPaintOptionsAndroid paintOpts = paint->getPaintOptionsAndroid(); 430 if (paintOpts.getFontVariant() == SkPaintOptionsAndroid::kElegant_Variant) { 431 SkScalar size = paint->getTextSize(); 432 metrics->fTop = -size * kElegantTop / 2048; 433 metrics->fBottom = -size * kElegantBottom / 2048; 434 metrics->fAscent = -size * kElegantAscent / 2048; 435 metrics->fDescent = -size * kElegantDescent / 2048; 436 metrics->fLeading = size * kElegantLeading / 2048; 437 spacing = metrics->fDescent - metrics->fAscent + metrics->fLeading; 438 } 439 return spacing; 440 } 441 442 static jfloat getFontMetrics(JNIEnv* env, jobject paint, jobject metricsObj) { 443 NPE_CHECK_RETURN_ZERO(env, paint); 444 SkPaint::FontMetrics metrics; 445 SkScalar spacing = getMetricsInternal(GraphicsJNI::getNativePaint(env, paint), &metrics); 446 447 if (metricsObj) { 448 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetrics_class)); 449 env->SetFloatField(metricsObj, gFontMetrics_fieldID.top, SkScalarToFloat(metrics.fTop)); 450 env->SetFloatField(metricsObj, gFontMetrics_fieldID.ascent, SkScalarToFloat(metrics.fAscent)); 451 env->SetFloatField(metricsObj, gFontMetrics_fieldID.descent, SkScalarToFloat(metrics.fDescent)); 452 env->SetFloatField(metricsObj, gFontMetrics_fieldID.bottom, SkScalarToFloat(metrics.fBottom)); 453 env->SetFloatField(metricsObj, gFontMetrics_fieldID.leading, SkScalarToFloat(metrics.fLeading)); 454 } 455 return SkScalarToFloat(spacing); 456 } 457 458 static jint getFontMetricsInt(JNIEnv* env, jobject paint, jobject metricsObj) { 459 NPE_CHECK_RETURN_ZERO(env, paint); 460 SkPaint::FontMetrics metrics; 461 462 getMetricsInternal(GraphicsJNI::getNativePaint(env, paint), &metrics); 463 int ascent = SkScalarRoundToInt(metrics.fAscent); 464 int descent = SkScalarRoundToInt(metrics.fDescent); 465 int leading = SkScalarRoundToInt(metrics.fLeading); 466 467 if (metricsObj) { 468 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetricsInt_class)); 469 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.top, SkScalarFloorToInt(metrics.fTop)); 470 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.ascent, ascent); 471 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.descent, descent); 472 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.bottom, SkScalarCeilToInt(metrics.fBottom)); 473 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.leading, leading); 474 } 475 return descent - ascent + leading; 476 } 477 478 static jfloat measureText_CIII(JNIEnv* env, jobject jpaint, jcharArray text, jint index, jint count, 479 jint bidiFlags) { 480 NPE_CHECK_RETURN_ZERO(env, jpaint); 481 NPE_CHECK_RETURN_ZERO(env, text); 482 483 size_t textLength = env->GetArrayLength(text); 484 if ((index | count) < 0 || (size_t)(index + count) > textLength) { 485 doThrowAIOOBE(env); 486 return 0; 487 } 488 if (count == 0) { 489 return 0; 490 } 491 492 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 493 const jchar* textArray = env->GetCharArrayElements(text, NULL); 494 jfloat result = 0; 495 496 TextLayout::getTextRunAdvances(paint, textArray, index, count, textLength, 497 bidiFlags, NULL /* dont need all advances */, &result); 498 499 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); 500 return result; 501 } 502 503 static jfloat measureText_StringIII(JNIEnv* env, jobject jpaint, jstring text, jint start, jint end, 504 jint bidiFlags) { 505 NPE_CHECK_RETURN_ZERO(env, jpaint); 506 NPE_CHECK_RETURN_ZERO(env, text); 507 508 size_t textLength = env->GetStringLength(text); 509 int count = end - start; 510 if ((start | count) < 0 || (size_t)end > textLength) { 511 doThrowAIOOBE(env); 512 return 0; 513 } 514 if (count == 0) { 515 return 0; 516 } 517 518 const jchar* textArray = env->GetStringChars(text, NULL); 519 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 520 jfloat width = 0; 521 522 TextLayout::getTextRunAdvances(paint, textArray, start, count, textLength, 523 bidiFlags, NULL /* dont need all advances */, &width); 524 525 env->ReleaseStringChars(text, textArray); 526 return width; 527 } 528 529 static jfloat measureText_StringI(JNIEnv* env, jobject jpaint, jstring text, jint bidiFlags) { 530 NPE_CHECK_RETURN_ZERO(env, jpaint); 531 NPE_CHECK_RETURN_ZERO(env, text); 532 533 size_t textLength = env->GetStringLength(text); 534 if (textLength == 0) { 535 return 0; 536 } 537 538 const jchar* textArray = env->GetStringChars(text, NULL); 539 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 540 jfloat width = 0; 541 542 TextLayout::getTextRunAdvances(paint, textArray, 0, textLength, textLength, 543 bidiFlags, NULL /* dont need all advances */, &width); 544 545 env->ReleaseStringChars(text, textArray); 546 return width; 547 } 548 549 static int dotextwidths(JNIEnv* env, SkPaint* paint, const jchar text[], int count, jfloatArray widths, 550 jint bidiFlags) { 551 NPE_CHECK_RETURN_ZERO(env, paint); 552 NPE_CHECK_RETURN_ZERO(env, text); 553 554 if (count < 0 || !widths) { 555 doThrowAIOOBE(env); 556 return 0; 557 } 558 if (count == 0) { 559 return 0; 560 } 561 size_t widthsLength = env->GetArrayLength(widths); 562 if ((size_t)count > widthsLength) { 563 doThrowAIOOBE(env); 564 return 0; 565 } 566 567 AutoJavaFloatArray autoWidths(env, widths, count); 568 jfloat* widthsArray = autoWidths.ptr(); 569 570 TextLayout::getTextRunAdvances(paint, text, 0, count, count, 571 bidiFlags, widthsArray, NULL /* dont need totalAdvance */); 572 573 return count; 574 } 575 576 static jint getTextWidths___CIII_F(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray text, 577 jint index, jint count, jint bidiFlags, jfloatArray widths) { 578 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 579 const jchar* textArray = env->GetCharArrayElements(text, NULL); 580 count = dotextwidths(env, paint, textArray + index, count, widths, bidiFlags); 581 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), 582 JNI_ABORT); 583 return count; 584 } 585 586 static jint getTextWidths__StringIII_F(JNIEnv* env, jobject clazz, jlong paintHandle, jstring text, 587 jint start, jint end, jint bidiFlags, jfloatArray widths) { 588 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 589 const jchar* textArray = env->GetStringChars(text, NULL); 590 int count = dotextwidths(env, paint, textArray + start, end - start, widths, bidiFlags); 591 env->ReleaseStringChars(text, textArray); 592 return count; 593 } 594 595 static int doTextGlyphs(JNIEnv* env, SkPaint* paint, const jchar* text, jint start, jint count, 596 jint contextCount, jint flags, jcharArray glyphs) { 597 NPE_CHECK_RETURN_ZERO(env, paint); 598 NPE_CHECK_RETURN_ZERO(env, text); 599 600 if ((start | count | contextCount) < 0 || contextCount < count || !glyphs) { 601 doThrowAIOOBE(env); 602 return 0; 603 } 604 if (count == 0) { 605 return 0; 606 } 607 size_t glypthsLength = env->GetArrayLength(glyphs); 608 if ((size_t)count > glypthsLength) { 609 doThrowAIOOBE(env); 610 return 0; 611 } 612 613 jchar* glyphsArray = env->GetCharArrayElements(glyphs, NULL); 614 615 sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint, 616 text, start, count, contextCount, flags); 617 const jchar* shapedGlyphs = value->getGlyphs(); 618 size_t glyphsCount = value->getGlyphsCount(); 619 memcpy(glyphsArray, shapedGlyphs, sizeof(jchar) * glyphsCount); 620 621 env->ReleaseCharArrayElements(glyphs, glyphsArray, JNI_ABORT); 622 return glyphsCount; 623 } 624 625 static jint getTextGlyphs__StringIIIII_C(JNIEnv* env, jobject clazz, jlong paintHandle, 626 jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint flags, 627 jcharArray glyphs) { 628 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 629 const jchar* textArray = env->GetStringChars(text, NULL); 630 int count = doTextGlyphs(env, paint, textArray + contextStart, start - contextStart, 631 end - start, contextEnd - contextStart, flags, glyphs); 632 env->ReleaseStringChars(text, textArray); 633 return count; 634 } 635 636 static jfloat doTextRunAdvances(JNIEnv *env, SkPaint *paint, const jchar *text, 637 jint start, jint count, jint contextCount, jint flags, 638 jfloatArray advances, jint advancesIndex) { 639 NPE_CHECK_RETURN_ZERO(env, paint); 640 NPE_CHECK_RETURN_ZERO(env, text); 641 642 if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) { 643 doThrowAIOOBE(env); 644 return 0; 645 } 646 if (count == 0) { 647 return 0; 648 } 649 if (advances) { 650 size_t advancesLength = env->GetArrayLength(advances); 651 if ((size_t)count > advancesLength) { 652 doThrowAIOOBE(env); 653 return 0; 654 } 655 } 656 jfloat* advancesArray = new jfloat[count]; 657 jfloat totalAdvance = 0; 658 659 TextLayout::getTextRunAdvances(paint, text, start, count, contextCount, flags, 660 advancesArray, &totalAdvance); 661 662 if (advances != NULL) { 663 env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray); 664 } 665 delete [] advancesArray; 666 return totalAdvance; 667 } 668 669 static jfloat getTextRunAdvances___CIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle, 670 jcharArray text, jint index, jint count, jint contextIndex, jint contextCount, 671 jint flags, jfloatArray advances, jint advancesIndex) { 672 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 673 jchar* textArray = env->GetCharArrayElements(text, NULL); 674 jfloat result = doTextRunAdvances(env, paint, textArray + contextIndex, 675 index - contextIndex, count, contextCount, flags, advances, advancesIndex); 676 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 677 return result; 678 } 679 680 static jfloat getTextRunAdvances__StringIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle, 681 jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint flags, 682 jfloatArray advances, jint advancesIndex) { 683 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 684 const jchar* textArray = env->GetStringChars(text, NULL); 685 jfloat result = doTextRunAdvances(env, paint, textArray + contextStart, 686 start - contextStart, end - start, contextEnd - contextStart, flags, 687 advances, advancesIndex); 688 env->ReleaseStringChars(text, textArray); 689 return result; 690 } 691 692 static jint doTextRunCursor(JNIEnv *env, SkPaint* paint, const jchar *text, jint start, 693 jint count, jint flags, jint offset, jint opt) { 694 jfloat scalarArray[count]; 695 696 TextLayout::getTextRunAdvances(paint, text, start, count, start + count, flags, 697 scalarArray, NULL /* dont need totalAdvance */); 698 699 jint pos = offset - start; 700 switch (opt) { 701 case AFTER: 702 if (pos < count) { 703 pos += 1; 704 } 705 // fall through 706 case AT_OR_AFTER: 707 while (pos < count && scalarArray[pos] == 0) { 708 ++pos; 709 } 710 break; 711 case BEFORE: 712 if (pos > 0) { 713 --pos; 714 } 715 // fall through 716 case AT_OR_BEFORE: 717 while (pos > 0 && scalarArray[pos] == 0) { 718 --pos; 719 } 720 break; 721 case AT: 722 default: 723 if (scalarArray[pos] == 0) { 724 pos = -1; 725 } 726 break; 727 } 728 729 if (pos != -1) { 730 pos += start; 731 } 732 733 return pos; 734 } 735 736 static jint getTextRunCursor___C(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray text, 737 jint contextStart, jint contextCount, jint flags, jint offset, jint cursorOpt) { 738 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 739 jchar* textArray = env->GetCharArrayElements(text, NULL); 740 jint result = doTextRunCursor(env, paint, textArray, contextStart, contextCount, flags, 741 offset, cursorOpt); 742 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 743 return result; 744 } 745 746 static jint getTextRunCursor__String(JNIEnv* env, jobject clazz, jlong paintHandle, jstring text, 747 jint contextStart, jint contextEnd, jint flags, jint offset, jint cursorOpt) { 748 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 749 const jchar* textArray = env->GetStringChars(text, NULL); 750 jint result = doTextRunCursor(env, paint, textArray, contextStart, 751 contextEnd - contextStart, flags, offset, cursorOpt); 752 env->ReleaseStringChars(text, textArray); 753 return result; 754 } 755 756 static void getTextPath(JNIEnv* env, SkPaint* paint, const jchar* text, jint count, 757 jint bidiFlags, jfloat x, jfloat y, SkPath *path) { 758 TextLayout::getTextPath(paint, text, count, bidiFlags, x, y, path); 759 } 760 761 static void getTextPath___C(JNIEnv* env, jobject clazz, jlong paintHandle, jint bidiFlags, 762 jcharArray text, jint index, jint count, jfloat x, jfloat y, jlong pathHandle) { 763 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 764 SkPath* path = reinterpret_cast<SkPath*>(pathHandle); 765 const jchar* textArray = env->GetCharArrayElements(text, NULL); 766 getTextPath(env, paint, textArray + index, count, bidiFlags, x, y, path); 767 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); 768 } 769 770 static void getTextPath__String(JNIEnv* env, jobject clazz, jlong paintHandle, jint bidiFlags, 771 jstring text, jint start, jint end, jfloat x, jfloat y, jlong pathHandle) { 772 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 773 SkPath* path = reinterpret_cast<SkPath*>(pathHandle); 774 const jchar* textArray = env->GetStringChars(text, NULL); 775 getTextPath(env, paint, textArray + start, end - start, bidiFlags, x, y, path); 776 env->ReleaseStringChars(text, textArray); 777 } 778 779 static void setShadowLayer(JNIEnv* env, jobject jpaint, jfloat radius, 780 jfloat dx, jfloat dy, jint color) { 781 NPE_CHECK_RETURN_VOID(env, jpaint); 782 783 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 784 if (radius <= 0) { 785 paint->setLooper(NULL); 786 } 787 else { 788 paint->setLooper(new SkBlurDrawLooper(radius, dx, dy, (SkColor)color))->unref(); 789 } 790 } 791 792 static int breakText(JNIEnv* env, SkPaint& paint, const jchar text[], 793 int count, float maxWidth, jint bidiFlags, jfloatArray jmeasured, 794 SkPaint::TextBufferDirection tbd) { 795 sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(&paint, 796 text, 0, count, count, bidiFlags); 797 if (value == NULL) { 798 return 0; 799 } 800 SkScalar measured; 801 size_t bytes = paint.breakText(value->getGlyphs(), value->getGlyphsCount() << 1, 802 maxWidth, &measured, tbd); 803 SkASSERT((bytes & 1) == 0); 804 805 if (jmeasured && env->GetArrayLength(jmeasured) > 0) { 806 AutoJavaFloatArray autoMeasured(env, jmeasured, 1); 807 jfloat* array = autoMeasured.ptr(); 808 array[0] = SkScalarToFloat(measured); 809 } 810 return bytes >> 1; 811 } 812 813 static jint breakTextC(JNIEnv* env, jobject jpaint, jcharArray jtext, 814 jint index, jint count, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { 815 NPE_CHECK_RETURN_ZERO(env, jpaint); 816 NPE_CHECK_RETURN_ZERO(env, jtext); 817 818 SkPaint::TextBufferDirection tbd; 819 if (count < 0) { 820 tbd = SkPaint::kBackward_TextBufferDirection; 821 count = -count; 822 } 823 else { 824 tbd = SkPaint::kForward_TextBufferDirection; 825 } 826 827 if ((index < 0) || (index + count > env->GetArrayLength(jtext))) { 828 doThrowAIOOBE(env); 829 return 0; 830 } 831 832 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 833 const jchar* text = env->GetCharArrayElements(jtext, NULL); 834 count = breakText(env, *paint, text + index, count, maxWidth, 835 bidiFlags, jmeasuredWidth, tbd); 836 env->ReleaseCharArrayElements(jtext, const_cast<jchar*>(text), 837 JNI_ABORT); 838 return count; 839 } 840 841 static jint breakTextS(JNIEnv* env, jobject jpaint, jstring jtext, 842 jboolean forwards, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { 843 NPE_CHECK_RETURN_ZERO(env, jpaint); 844 NPE_CHECK_RETURN_ZERO(env, jtext); 845 846 SkPaint::TextBufferDirection tbd = forwards ? 847 SkPaint::kForward_TextBufferDirection : 848 SkPaint::kBackward_TextBufferDirection; 849 850 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 851 int count = env->GetStringLength(jtext); 852 const jchar* text = env->GetStringChars(jtext, NULL); 853 count = breakText(env, *paint, text, count, maxWidth, bidiFlags, jmeasuredWidth, tbd); 854 env->ReleaseStringChars(jtext, text); 855 return count; 856 } 857 858 static void doTextBounds(JNIEnv* env, const jchar* text, int count, 859 jobject bounds, const SkPaint& paint, jint bidiFlags) { 860 SkRect r; 861 SkIRect ir; 862 863 sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(&paint, 864 text, 0, count, count, bidiFlags); 865 if (value == NULL) { 866 return; 867 } 868 paint.measureText(value->getGlyphs(), value->getGlyphsCount() << 1, &r); 869 r.roundOut(&ir); 870 GraphicsJNI::irect_to_jrect(ir, env, bounds); 871 } 872 873 static void getStringBounds(JNIEnv* env, jobject, jlong paintHandle, 874 jstring text, jint start, jint end, jint bidiFlags, jobject bounds) { 875 const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle);; 876 const jchar* textArray = env->GetStringChars(text, NULL); 877 doTextBounds(env, textArray + start, end - start, bounds, *paint, bidiFlags); 878 env->ReleaseStringChars(text, textArray); 879 } 880 881 static void getCharArrayBounds(JNIEnv* env, jobject, jlong paintHandle, 882 jcharArray text, jint index, jint count, jint bidiFlags, jobject bounds) { 883 const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 884 const jchar* textArray = env->GetCharArrayElements(text, NULL); 885 doTextBounds(env, textArray + index, count, bounds, *paint, bidiFlags); 886 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), 887 JNI_ABORT); 888 } 889 890}; 891 892static JNINativeMethod methods[] = { 893 {"finalizer", "(J)V", (void*) SkPaintGlue::finalizer}, 894 {"native_init","()J", (void*) SkPaintGlue::init}, 895 {"native_initWithPaint","(J)J", (void*) SkPaintGlue::initWithPaint}, 896 {"native_reset","(J)V", (void*) SkPaintGlue::reset}, 897 {"native_set","(JJ)V", (void*) SkPaintGlue::assign}, 898 {"getFlags","()I", (void*) SkPaintGlue::getFlags}, 899 {"setFlags","(I)V", (void*) SkPaintGlue::setFlags}, 900 {"getHinting","()I", (void*) SkPaintGlue::getHinting}, 901 {"setHinting","(I)V", (void*) SkPaintGlue::setHinting}, 902 {"setAntiAlias","(Z)V", (void*) SkPaintGlue::setAntiAlias}, 903 {"setSubpixelText","(Z)V", (void*) SkPaintGlue::setSubpixelText}, 904 {"setLinearText","(Z)V", (void*) SkPaintGlue::setLinearText}, 905 {"setUnderlineText","(Z)V", (void*) SkPaintGlue::setUnderlineText}, 906 {"setStrikeThruText","(Z)V", (void*) SkPaintGlue::setStrikeThruText}, 907 {"setFakeBoldText","(Z)V", (void*) SkPaintGlue::setFakeBoldText}, 908 {"setFilterBitmap","(Z)V", (void*) SkPaintGlue::setFilterBitmap}, 909 {"setDither","(Z)V", (void*) SkPaintGlue::setDither}, 910 {"native_getStyle","(J)I", (void*) SkPaintGlue::getStyle}, 911 {"native_setStyle","(JI)V", (void*) SkPaintGlue::setStyle}, 912 {"getColor","()I", (void*) SkPaintGlue::getColor}, 913 {"setColor","(I)V", (void*) SkPaintGlue::setColor}, 914 {"getAlpha","()I", (void*) SkPaintGlue::getAlpha}, 915 {"setAlpha","(I)V", (void*) SkPaintGlue::setAlpha}, 916 {"getStrokeWidth","()F", (void*) SkPaintGlue::getStrokeWidth}, 917 {"setStrokeWidth","(F)V", (void*) SkPaintGlue::setStrokeWidth}, 918 {"getStrokeMiter","()F", (void*) SkPaintGlue::getStrokeMiter}, 919 {"setStrokeMiter","(F)V", (void*) SkPaintGlue::setStrokeMiter}, 920 {"native_getStrokeCap","(J)I", (void*) SkPaintGlue::getStrokeCap}, 921 {"native_setStrokeCap","(JI)V", (void*) SkPaintGlue::setStrokeCap}, 922 {"native_getStrokeJoin","(J)I", (void*) SkPaintGlue::getStrokeJoin}, 923 {"native_setStrokeJoin","(JI)V", (void*) SkPaintGlue::setStrokeJoin}, 924 {"native_getFillPath","(JJJ)Z", (void*) SkPaintGlue::getFillPath}, 925 {"native_setShader","(JJ)J", (void*) SkPaintGlue::setShader}, 926 {"native_setColorFilter","(JJ)J", (void*) SkPaintGlue::setColorFilter}, 927 {"native_setXfermode","(JJ)J", (void*) SkPaintGlue::setXfermode}, 928 {"native_setPathEffect","(JJ)J", (void*) SkPaintGlue::setPathEffect}, 929 {"native_setMaskFilter","(JJ)J", (void*) SkPaintGlue::setMaskFilter}, 930 {"native_setTypeface","(JJ)J", (void*) SkPaintGlue::setTypeface}, 931 {"native_setRasterizer","(JJ)J", (void*) SkPaintGlue::setRasterizer}, 932 {"native_getTextAlign","(J)I", (void*) SkPaintGlue::getTextAlign}, 933 {"native_setTextAlign","(JI)V", (void*) SkPaintGlue::setTextAlign}, 934 {"native_setTextLocale","(JLjava/lang/String;)V", (void*) SkPaintGlue::setTextLocale}, 935 {"isElegantTextHeight","()Z", (void*) SkPaintGlue::isElegantTextHeight}, 936 {"setElegantTextHeight","(Z)V", (void*) SkPaintGlue::setElegantTextHeight}, 937 {"getTextSize","()F", (void*) SkPaintGlue::getTextSize}, 938 {"setTextSize","(F)V", (void*) SkPaintGlue::setTextSize}, 939 {"getTextScaleX","()F", (void*) SkPaintGlue::getTextScaleX}, 940 {"setTextScaleX","(F)V", (void*) SkPaintGlue::setTextScaleX}, 941 {"getTextSkewX","()F", (void*) SkPaintGlue::getTextSkewX}, 942 {"setTextSkewX","(F)V", (void*) SkPaintGlue::setTextSkewX}, 943 {"ascent","()F", (void*) SkPaintGlue::ascent}, 944 {"descent","()F", (void*) SkPaintGlue::descent}, 945 {"getFontMetrics", "(Landroid/graphics/Paint$FontMetrics;)F", (void*)SkPaintGlue::getFontMetrics}, 946 {"getFontMetricsInt", "(Landroid/graphics/Paint$FontMetricsInt;)I", (void*)SkPaintGlue::getFontMetricsInt}, 947 {"native_measureText","([CIII)F", (void*) SkPaintGlue::measureText_CIII}, 948 {"native_measureText","(Ljava/lang/String;I)F", (void*) SkPaintGlue::measureText_StringI}, 949 {"native_measureText","(Ljava/lang/String;III)F", (void*) SkPaintGlue::measureText_StringIII}, 950 {"native_breakText","([CIIFI[F)I", (void*) SkPaintGlue::breakTextC}, 951 {"native_breakText","(Ljava/lang/String;ZFI[F)I", (void*) SkPaintGlue::breakTextS}, 952 {"native_getTextWidths","(J[CIII[F)I", (void*) SkPaintGlue::getTextWidths___CIII_F}, 953 {"native_getTextWidths","(JLjava/lang/String;III[F)I", (void*) SkPaintGlue::getTextWidths__StringIII_F}, 954 {"native_getTextRunAdvances","(J[CIIIII[FI)F", 955 (void*) SkPaintGlue::getTextRunAdvances___CIIIII_FI}, 956 {"native_getTextRunAdvances","(JLjava/lang/String;IIIII[FI)F", 957 (void*) SkPaintGlue::getTextRunAdvances__StringIIIII_FI}, 958 959 960 {"native_getTextGlyphs","(JLjava/lang/String;IIIII[C)I", 961 (void*) SkPaintGlue::getTextGlyphs__StringIIIII_C}, 962 {"native_getTextRunCursor", "(J[CIIIII)I", (void*) SkPaintGlue::getTextRunCursor___C}, 963 {"native_getTextRunCursor", "(JLjava/lang/String;IIIII)I", 964 (void*) SkPaintGlue::getTextRunCursor__String}, 965 {"native_getTextPath","(JI[CIIFFJ)V", (void*) SkPaintGlue::getTextPath___C}, 966 {"native_getTextPath","(JILjava/lang/String;IIFFJ)V", (void*) SkPaintGlue::getTextPath__String}, 967 {"nativeGetStringBounds", "(JLjava/lang/String;IIILandroid/graphics/Rect;)V", 968 (void*) SkPaintGlue::getStringBounds }, 969 {"nativeGetCharArrayBounds", "(J[CIIILandroid/graphics/Rect;)V", 970 (void*) SkPaintGlue::getCharArrayBounds }, 971 {"nSetShadowLayer", "(FFFI)V", (void*)SkPaintGlue::setShadowLayer} 972}; 973 974static jfieldID req_fieldID(jfieldID id) { 975 SkASSERT(id); 976 return id; 977} 978 979int register_android_graphics_Paint(JNIEnv* env) { 980 gFontMetrics_class = env->FindClass("android/graphics/Paint$FontMetrics"); 981 SkASSERT(gFontMetrics_class); 982 gFontMetrics_class = (jclass)env->NewGlobalRef(gFontMetrics_class); 983 984 gFontMetrics_fieldID.top = req_fieldID(env->GetFieldID(gFontMetrics_class, "top", "F")); 985 gFontMetrics_fieldID.ascent = req_fieldID(env->GetFieldID(gFontMetrics_class, "ascent", "F")); 986 gFontMetrics_fieldID.descent = req_fieldID(env->GetFieldID(gFontMetrics_class, "descent", "F")); 987 gFontMetrics_fieldID.bottom = req_fieldID(env->GetFieldID(gFontMetrics_class, "bottom", "F")); 988 gFontMetrics_fieldID.leading = req_fieldID(env->GetFieldID(gFontMetrics_class, "leading", "F")); 989 990 gFontMetricsInt_class = env->FindClass("android/graphics/Paint$FontMetricsInt"); 991 SkASSERT(gFontMetricsInt_class); 992 gFontMetricsInt_class = (jclass)env->NewGlobalRef(gFontMetricsInt_class); 993 994 gFontMetricsInt_fieldID.top = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "top", "I")); 995 gFontMetricsInt_fieldID.ascent = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "ascent", "I")); 996 gFontMetricsInt_fieldID.descent = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "descent", "I")); 997 gFontMetricsInt_fieldID.bottom = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "bottom", "I")); 998 gFontMetricsInt_fieldID.leading = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "leading", "I")); 999 1000 int result = AndroidRuntime::registerNativeMethods(env, "android/graphics/Paint", methods, 1001 sizeof(methods) / sizeof(methods[0])); 1002 return result; 1003} 1004 1005} 1006