Paint.cpp revision 79df5323e7ed541b854cea5684a89e8be8c2dfc9
18f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania/* libs/android_runtime/android/graphics/Paint.cpp 28f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** 38f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** Copyright 2006, The Android Open Source Project 48f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** 58f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** Licensed under the Apache License, Version 2.0 (the "License"); 68f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** you may not use this file except in compliance with the License. 78f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** You may obtain a copy of the License at 88f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** 98f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** http://www.apache.org/licenses/LICENSE-2.0 108f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** 118f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** Unless required by applicable law or agreed to in writing, software 128f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** distributed under the License is distributed on an "AS IS" BASIS, 138f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 148f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** See the License for the specific language governing permissions and 158f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania** limitations under the License. 168f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania*/ 178f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 188f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania#define LOG_TAG "Paint" 198f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 208f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania#include <utils/Log.h> 218f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 228f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania#include "jni.h" 238994837f27e783a10f5cc038a7ae7595aabffdb6niko#include "GraphicsJNI.h" 248994837f27e783a10f5cc038a7ae7595aabffdb6niko#include <android_runtime/AndroidRuntime.h> 258994837f27e783a10f5cc038a7ae7595aabffdb6niko 268f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania#include "SkBlurDrawLooper.h" 278994837f27e783a10f5cc038a7ae7595aabffdb6niko#include "SkColorFilter.h" 288f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania#include "SkMaskFilter.h" 29e3c01832fc741e9908f047d86cd40db1ea5d78c8Andreas Huber#include "SkRasterizer.h" 308f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania#include "SkShader.h" 318f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania#include "SkTypeface.h" 328f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania#include "SkXfermode.h" 338994837f27e783a10f5cc038a7ae7595aabffdb6niko#include "unicode/ushape.h" 348f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania#include "TextLayout.h" 358f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 368f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania// temporary for debugging 378f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania#include <Caches.h> 388f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania#include <utils/Log.h> 39256430093679e1d62b54fb0c852126e54d162f6fAndreas Huber 40256430093679e1d62b54fb0c852126e54d162f6fAndreas Hubernamespace android { 418f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 428f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Cataniastruct JMetricsID { 438f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania jfieldID top; 448f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania jfieldID ascent; 458f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania jfieldID descent; 468f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania jfieldID bottom; 478f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania jfieldID leading; 488f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania}; 498f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 508f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Cataniastatic jclass gFontMetrics_class; 518f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Cataniastatic JMetricsID gFontMetrics_fieldID; 528f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 538f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Cataniastatic jclass gFontMetricsInt_class; 548f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Cataniastatic JMetricsID gFontMetricsInt_fieldID; 558f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 568f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Cataniastatic void defaultSettingsForAndroid(SkPaint* paint) { 578f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania // utf16 is required for java 588f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania paint->setTextEncoding(SkPaint::kUTF16_TextEncoding); 59256430093679e1d62b54fb0c852126e54d162f6fAndreas Huber} 60256430093679e1d62b54fb0c852126e54d162f6fAndreas Huber 61256430093679e1d62b54fb0c852126e54d162f6fAndreas Huberclass SkPaintGlue { 628f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Cataniapublic: 638f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania enum MoveOpt { 648f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania AFTER, AT_OR_AFTER, BEFORE, AT_OR_BEFORE, AT 658f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania }; 668f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 678f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania static void finalizer(JNIEnv* env, jobject clazz, SkPaint* obj) { 688f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania delete obj; 698f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 708f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 71e3c01832fc741e9908f047d86cd40db1ea5d78c8Andreas Huber static SkPaint* init(JNIEnv* env, jobject clazz) { 72e3c01832fc741e9908f047d86cd40db1ea5d78c8Andreas Huber SkPaint* obj = new SkPaint(); 738f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania defaultSettingsForAndroid(obj); 748f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania return obj; 758f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 768f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 778f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania static SkPaint* intiWithPaint(JNIEnv* env, jobject clazz, SkPaint* paint) { 788f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania SkPaint* obj = new SkPaint(*paint); 798f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania return obj; 808f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 818f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 828f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania static void reset(JNIEnv* env, jobject clazz, SkPaint* obj) { 838f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania obj->reset(); 848f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania defaultSettingsForAndroid(obj); 858f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 868994837f27e783a10f5cc038a7ae7595aabffdb6niko 878f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania static void assign(JNIEnv* env, jobject clazz, SkPaint* dst, const SkPaint* src) { 888f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania *dst = *src; 898f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 908f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 918f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania static jint getFlags(JNIEnv* env, jobject paint) { 928f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania NPE_CHECK_RETURN_ZERO(env, paint); 938f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania return GraphicsJNI::getNativePaint(env, paint)->getFlags(); 948f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 958f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 968f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania static void setFlags(JNIEnv* env, jobject paint, jint flags) { 978f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania NPE_CHECK_RETURN_VOID(env, paint); 988f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania GraphicsJNI::getNativePaint(env, paint)->setFlags(flags); 998f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 1008f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 1018f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania static jint getHinting(JNIEnv* env, jobject paint) { 1028f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania NPE_CHECK_RETURN_ZERO(env, paint); 1038f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania return GraphicsJNI::getNativePaint(env, paint)->getHinting() 1048f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania == SkPaint::kNo_Hinting ? 0 : 1; 1058f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 1068f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 1078f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania static void setHinting(JNIEnv* env, jobject paint, jint mode) { 1088f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania NPE_CHECK_RETURN_VOID(env, paint); 1098f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania GraphicsJNI::getNativePaint(env, paint)->setHinting( 1108f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania mode == 0 ? SkPaint::kNo_Hinting : SkPaint::kSlight_Hinting); 1118f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 1128f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 1138f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania static void setAntiAlias(JNIEnv* env, jobject paint, jboolean aa) { 1148f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania NPE_CHECK_RETURN_VOID(env, paint); 1158f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania GraphicsJNI::getNativePaint(env, paint)->setAntiAlias(aa); 1168f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 1178f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 1188f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania static void setLinearText(JNIEnv* env, jobject paint, jboolean linearText) { 1198f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania NPE_CHECK_RETURN_VOID(env, paint); 1208f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania GraphicsJNI::getNativePaint(env, paint)->setLinearText(linearText); 1218f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 1228f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 1238f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania static void setSubpixelText(JNIEnv* env, jobject paint, jboolean subpixelText) { 1248f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania NPE_CHECK_RETURN_VOID(env, paint); 1258f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania GraphicsJNI::getNativePaint(env, paint)->setSubpixelText(subpixelText); 1268f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania } 1278f5fcab05f1d6f644a9c30f012b8ff302f24a118Nicolas Catania 128 static void setUnderlineText(JNIEnv* env, jobject paint, jboolean underlineText) { 129 NPE_CHECK_RETURN_VOID(env, paint); 130 GraphicsJNI::getNativePaint(env, paint)->setUnderlineText(underlineText); 131 } 132 133 static void setStrikeThruText(JNIEnv* env, jobject paint, jboolean strikeThruText) { 134 NPE_CHECK_RETURN_VOID(env, paint); 135 GraphicsJNI::getNativePaint(env, paint)->setStrikeThruText(strikeThruText); 136 } 137 138 static void setFakeBoldText(JNIEnv* env, jobject paint, jboolean fakeBoldText) { 139 NPE_CHECK_RETURN_VOID(env, paint); 140 GraphicsJNI::getNativePaint(env, paint)->setFakeBoldText(fakeBoldText); 141 } 142 143 static void setFilterBitmap(JNIEnv* env, jobject paint, jboolean filterBitmap) { 144 NPE_CHECK_RETURN_VOID(env, paint); 145 GraphicsJNI::getNativePaint(env, paint)->setFilterBitmap(filterBitmap); 146 } 147 148 static void setDither(JNIEnv* env, jobject paint, jboolean dither) { 149 NPE_CHECK_RETURN_VOID(env, paint); 150 GraphicsJNI::getNativePaint(env, paint)->setDither(dither); 151 } 152 153 static jint getStyle(JNIEnv* env, jobject clazz, SkPaint* obj) { 154 return obj->getStyle(); 155 } 156 157 static void setStyle(JNIEnv* env, jobject clazz, SkPaint* obj, SkPaint::Style style) { 158 obj->setStyle(style); 159 } 160 161 static jint getColor(JNIEnv* env, jobject paint) { 162 NPE_CHECK_RETURN_ZERO(env, paint); 163 return GraphicsJNI::getNativePaint(env, paint)->getColor(); 164 } 165 166 static jint getAlpha(JNIEnv* env, jobject paint) { 167 NPE_CHECK_RETURN_ZERO(env, paint); 168 return GraphicsJNI::getNativePaint(env, paint)->getAlpha(); 169 } 170 171 static void setColor(JNIEnv* env, jobject paint, jint color) { 172 NPE_CHECK_RETURN_VOID(env, paint); 173 GraphicsJNI::getNativePaint(env, paint)->setColor(color); 174 } 175 176 static void setAlpha(JNIEnv* env, jobject paint, jint a) { 177 NPE_CHECK_RETURN_VOID(env, paint); 178 GraphicsJNI::getNativePaint(env, paint)->setAlpha(a); 179 } 180 181 static jfloat getStrokeWidth(JNIEnv* env, jobject paint) { 182 NPE_CHECK_RETURN_ZERO(env, paint); 183 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getStrokeWidth()); 184 } 185 186 static void setStrokeWidth(JNIEnv* env, jobject paint, jfloat width) { 187 NPE_CHECK_RETURN_VOID(env, paint); 188 GraphicsJNI::getNativePaint(env, paint)->setStrokeWidth(SkFloatToScalar(width)); 189 } 190 191 static jfloat getStrokeMiter(JNIEnv* env, jobject paint) { 192 NPE_CHECK_RETURN_ZERO(env, paint); 193 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getStrokeMiter()); 194 } 195 196 static void setStrokeMiter(JNIEnv* env, jobject paint, jfloat miter) { 197 NPE_CHECK_RETURN_VOID(env, paint); 198 GraphicsJNI::getNativePaint(env, paint)->setStrokeMiter(SkFloatToScalar(miter)); 199 } 200 201 static jint getStrokeCap(JNIEnv* env, jobject clazz, SkPaint* obj) { 202 return obj->getStrokeCap(); 203 } 204 205 static void setStrokeCap(JNIEnv* env, jobject clazz, SkPaint* obj, SkPaint::Cap cap) { 206 obj->setStrokeCap(cap); 207 } 208 209 static jint getStrokeJoin(JNIEnv* env, jobject clazz, SkPaint* obj) { 210 return obj->getStrokeJoin(); 211 } 212 213 static void setStrokeJoin(JNIEnv* env, jobject clazz, SkPaint* obj, SkPaint::Join join) { 214 obj->setStrokeJoin(join); 215 } 216 217 static jboolean getFillPath(JNIEnv* env, jobject clazz, SkPaint* obj, SkPath* src, SkPath* dst) { 218 return obj->getFillPath(*src, dst); 219 } 220 221 static SkShader* setShader(JNIEnv* env, jobject clazz, SkPaint* obj, SkShader* shader) { 222 return obj->setShader(shader); 223 } 224 225 static SkColorFilter* setColorFilter(JNIEnv* env, jobject clazz, SkPaint* obj, SkColorFilter* filter) { 226 return obj->setColorFilter(filter); 227 } 228 229 static SkXfermode* setXfermode(JNIEnv* env, jobject clazz, SkPaint* obj, SkXfermode* xfermode) { 230 return obj->setXfermode(xfermode); 231 } 232 233 static SkPathEffect* setPathEffect(JNIEnv* env, jobject clazz, SkPaint* obj, SkPathEffect* effect) { 234 return obj->setPathEffect(effect); 235 } 236 237 static SkMaskFilter* setMaskFilter(JNIEnv* env, jobject clazz, SkPaint* obj, SkMaskFilter* maskfilter) { 238 return obj->setMaskFilter(maskfilter); 239 } 240 241 static SkTypeface* setTypeface(JNIEnv* env, jobject clazz, SkPaint* obj, SkTypeface* typeface) { 242 return obj->setTypeface(typeface); 243 } 244 245 static SkRasterizer* setRasterizer(JNIEnv* env, jobject clazz, SkPaint* obj, SkRasterizer* rasterizer) { 246 return obj->setRasterizer(rasterizer); 247 } 248 249 static jint getTextAlign(JNIEnv* env, jobject clazz, SkPaint* obj) { 250 return obj->getTextAlign(); 251 } 252 253 static void setTextAlign(JNIEnv* env, jobject clazz, SkPaint* obj, SkPaint::Align align) { 254 obj->setTextAlign(align); 255 } 256 257 static jfloat getTextSize(JNIEnv* env, jobject paint) { 258 NPE_CHECK_RETURN_ZERO(env, paint); 259 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextSize()); 260 } 261 262 static void setTextSize(JNIEnv* env, jobject paint, jfloat textSize) { 263 NPE_CHECK_RETURN_VOID(env, paint); 264 GraphicsJNI::getNativePaint(env, paint)->setTextSize(SkFloatToScalar(textSize)); 265 } 266 267 static jfloat getTextScaleX(JNIEnv* env, jobject paint) { 268 NPE_CHECK_RETURN_ZERO(env, paint); 269 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextScaleX()); 270 } 271 272 static void setTextScaleX(JNIEnv* env, jobject paint, jfloat scaleX) { 273 NPE_CHECK_RETURN_VOID(env, paint); 274 GraphicsJNI::getNativePaint(env, paint)->setTextScaleX(SkFloatToScalar(scaleX)); 275 } 276 277 static jfloat getTextSkewX(JNIEnv* env, jobject paint) { 278 NPE_CHECK_RETURN_ZERO(env, paint); 279 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextSkewX()); 280 } 281 282 static void setTextSkewX(JNIEnv* env, jobject paint, jfloat skewX) { 283 NPE_CHECK_RETURN_VOID(env, paint); 284 GraphicsJNI::getNativePaint(env, paint)->setTextSkewX(SkFloatToScalar(skewX)); 285 } 286 287 static jfloat ascent(JNIEnv* env, jobject paint) { 288 NPE_CHECK_RETURN_ZERO(env, paint); 289 SkPaint::FontMetrics metrics; 290 (void)GraphicsJNI::getNativePaint(env, paint)->getFontMetrics(&metrics); 291 return SkScalarToFloat(metrics.fAscent); 292 } 293 294 static jfloat descent(JNIEnv* env, jobject paint) { 295 NPE_CHECK_RETURN_ZERO(env, paint); 296 SkPaint::FontMetrics metrics; 297 (void)GraphicsJNI::getNativePaint(env, paint)->getFontMetrics(&metrics); 298 return SkScalarToFloat(metrics.fDescent); 299 } 300 301 static jfloat getFontMetrics(JNIEnv* env, jobject paint, jobject metricsObj) { 302 NPE_CHECK_RETURN_ZERO(env, paint); 303 SkPaint::FontMetrics metrics; 304 SkScalar spacing = GraphicsJNI::getNativePaint(env, paint)->getFontMetrics(&metrics); 305 306 if (metricsObj) { 307 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetrics_class)); 308 env->SetFloatField(metricsObj, gFontMetrics_fieldID.top, SkScalarToFloat(metrics.fTop)); 309 env->SetFloatField(metricsObj, gFontMetrics_fieldID.ascent, SkScalarToFloat(metrics.fAscent)); 310 env->SetFloatField(metricsObj, gFontMetrics_fieldID.descent, SkScalarToFloat(metrics.fDescent)); 311 env->SetFloatField(metricsObj, gFontMetrics_fieldID.bottom, SkScalarToFloat(metrics.fBottom)); 312 env->SetFloatField(metricsObj, gFontMetrics_fieldID.leading, SkScalarToFloat(metrics.fLeading)); 313 } 314 return SkScalarToFloat(spacing); 315 } 316 317 static jint getFontMetricsInt(JNIEnv* env, jobject paint, jobject metricsObj) { 318 NPE_CHECK_RETURN_ZERO(env, paint); 319 SkPaint::FontMetrics metrics; 320 321 GraphicsJNI::getNativePaint(env, paint)->getFontMetrics(&metrics); 322 int ascent = SkScalarRound(metrics.fAscent); 323 int descent = SkScalarRound(metrics.fDescent); 324 int leading = SkScalarRound(metrics.fLeading); 325 326 if (metricsObj) { 327 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetricsInt_class)); 328 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.top, SkScalarFloor(metrics.fTop)); 329 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.ascent, ascent); 330 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.descent, descent); 331 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.bottom, SkScalarCeil(metrics.fBottom)); 332 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.leading, leading); 333 } 334 return descent - ascent + leading; 335 } 336 337 static jfloat measureText_CII(JNIEnv* env, jobject jpaint, jcharArray text, int index, int count) { 338 NPE_CHECK_RETURN_ZERO(env, jpaint); 339 NPE_CHECK_RETURN_ZERO(env, text); 340 341 size_t textLength = env->GetArrayLength(text); 342 if ((index | count) < 0 || (size_t)(index + count) > textLength) { 343 doThrowAIOOBE(env); 344 return 0; 345 } 346 if (count == 0) { 347 return 0; 348 } 349 350 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 351 const jchar* textArray = env->GetCharArrayElements(text, NULL); 352 jfloat result = 0; 353#if RTL_USE_HARFBUZZ 354 TextLayout::getTextRunAdvances(paint, textArray, index, count, textLength, 355 paint->getFlags(), NULL /* dont need all advances */, &result); 356#else 357 // we double count, since measureText wants a byteLength 358 SkScalar width = paint->measureText(textArray + index, count << 1); 359 result = SkScalarToFloat(width); 360#endif 361 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); 362 return result; 363 } 364 365 static jfloat measureText_StringII(JNIEnv* env, jobject jpaint, jstring text, int start, int end) { 366 NPE_CHECK_RETURN_ZERO(env, jpaint); 367 NPE_CHECK_RETURN_ZERO(env, text); 368 369 size_t textLength = env->GetStringLength(text); 370 int count = end - start; 371 if ((start | count) < 0 || (size_t)end > textLength) { 372 doThrowAIOOBE(env); 373 return 0; 374 } 375 if (count == 0) { 376 return 0; 377 } 378 379 const jchar* textArray = env->GetStringChars(text, NULL); 380 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 381 jfloat width = 0; 382 383#if RTL_USE_HARFBUZZ 384 TextLayout::getTextRunAdvances(paint, textArray, start, count, textLength, 385 paint->getFlags(), NULL /* dont need all advances */, &width); 386#else 387 388 width = SkScalarToFloat(paint->measureText(textArray + start, count << 1)); 389#endif 390 env->ReleaseStringChars(text, textArray); 391 return width; 392 } 393 394 static jfloat measureText_String(JNIEnv* env, jobject jpaint, jstring text) { 395 NPE_CHECK_RETURN_ZERO(env, jpaint); 396 NPE_CHECK_RETURN_ZERO(env, text); 397 398 size_t textLength = env->GetStringLength(text); 399 if (textLength == 0) { 400 return 0; 401 } 402 403 const jchar* textArray = env->GetStringChars(text, NULL); 404 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 405 jfloat width = 0; 406 407#if RTL_USE_HARFBUZZ 408 TextLayout::getTextRunAdvances(paint, textArray, 0, textLength, textLength, 409 paint->getFlags(), NULL /* dont need all advances */, &width); 410#else 411 width = SkScalarToFloat(paint->measureText(textArray, textLength << 1)); 412#endif 413 env->ReleaseStringChars(text, textArray); 414 return width; 415 } 416 417 static int dotextwidths(JNIEnv* env, SkPaint* paint, const jchar text[], int count, jfloatArray widths) { 418 NPE_CHECK_RETURN_ZERO(env, paint); 419 NPE_CHECK_RETURN_ZERO(env, text); 420 421 if (count < 0 || !widths) { 422 doThrowAIOOBE(env); 423 return 0; 424 } 425 if (count == 0) { 426 return 0; 427 } 428 size_t widthsLength = env->GetArrayLength(widths); 429 if ((size_t)count > widthsLength) { 430 doThrowAIOOBE(env); 431 return 0; 432 } 433 434 AutoJavaFloatArray autoWidths(env, widths, count); 435 jfloat* widthsArray = autoWidths.ptr(); 436 437#if RTL_USE_HARFBUZZ 438 TextLayout::getTextRunAdvances(paint, text, 0, count, count, 439 paint->getFlags(), widthsArray, NULL /* dont need totalAdvance */); 440#else 441 SkScalar* scalarArray = (SkScalar*)widthsArray; 442 443 count = paint->getTextWidths(text, count << 1, scalarArray); 444 for (int i = 0; i < count; i++) { 445 widthsArray[i] = SkScalarToFloat(scalarArray[i]); 446 } 447#endif 448 return count; 449 } 450 451 static int getTextWidths___CII_F(JNIEnv* env, jobject clazz, SkPaint* paint, jcharArray text, int index, int count, jfloatArray widths) { 452 const jchar* textArray = env->GetCharArrayElements(text, NULL); 453 count = dotextwidths(env, paint, textArray + index, count, widths); 454 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), 455 JNI_ABORT); 456 return count; 457 } 458 459 static int getTextWidths__StringII_F(JNIEnv* env, jobject clazz, SkPaint* paint, jstring text, 460 int start, int end, jfloatArray widths) { 461 const jchar* textArray = env->GetStringChars(text, NULL); 462 int count = dotextwidths(env, paint, textArray + start, end - start, widths); 463 env->ReleaseStringChars(text, textArray); 464 return count; 465 } 466 467 static int doTextGlyphs(JNIEnv* env, SkPaint* paint, const jchar* text, jint start, jint count, 468 jint contextCount, jint flags, jcharArray glyphs) { 469 NPE_CHECK_RETURN_ZERO(env, paint); 470 NPE_CHECK_RETURN_ZERO(env, text); 471 472 if ((start | count | contextCount) < 0 || contextCount < count || !glyphs) { 473 doThrowAIOOBE(env); 474 return 0; 475 } 476 if (count == 0) { 477 return 0; 478 } 479 size_t glypthsLength = env->GetArrayLength(glyphs); 480 if ((size_t)count > glypthsLength) { 481 doThrowAIOOBE(env); 482 return 0; 483 } 484 485 jchar* glyphsArray = env->GetCharArrayElements(glyphs, NULL); 486 HB_ShaperItem shaperItem; 487 HB_FontRec font; 488 FontData fontData; 489 TextLayoutCacheValue::shapeWithHarfbuzz(&shaperItem, &font, &fontData, paint, text, 490 start, count, contextCount, flags); 491 492 int glyphCount = shaperItem.num_glyphs; 493 for (int i = 0; i < glyphCount; i++) { 494 glyphsArray[i] = (jchar) shaperItem.glyphs[i]; 495 } 496 env->ReleaseCharArrayElements(glyphs, glyphsArray, JNI_ABORT); 497 return glyphCount; 498 } 499 500 static int getTextGlyphs__StringIIIII_C(JNIEnv* env, jobject clazz, SkPaint* paint, 501 jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint flags, 502 jcharArray glyphs) { 503 const jchar* textArray = env->GetStringChars(text, NULL); 504 int count = doTextGlyphs(env, paint, textArray + contextStart, start - contextStart, 505 end - start, contextEnd - contextStart, flags, glyphs); 506 env->ReleaseStringChars(text, textArray); 507 return count; 508 } 509 510 static jfloat doTextRunAdvances(JNIEnv *env, SkPaint *paint, const jchar *text, 511 jint start, jint count, jint contextCount, jint flags, 512 jfloatArray advances, jint advancesIndex) { 513 NPE_CHECK_RETURN_ZERO(env, paint); 514 NPE_CHECK_RETURN_ZERO(env, text); 515 516 if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) { 517 doThrowAIOOBE(env); 518 return 0; 519 } 520 if (count == 0) { 521 return 0; 522 } 523 if (advances) { 524 size_t advancesLength = env->GetArrayLength(advances); 525 if ((size_t)count > advancesLength) { 526 doThrowAIOOBE(env); 527 return 0; 528 } 529 } 530 jfloat advancesArray[count]; 531 jfloat totalAdvance = 0; 532 533 TextLayout::getTextRunAdvances(paint, text, start, count, contextCount, flags, 534 advancesArray, &totalAdvance); 535 536 if (advances != NULL) { 537 env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray); 538 } 539 return totalAdvance; 540 } 541 542 static jfloat doTextRunAdvancesICU(JNIEnv *env, SkPaint *paint, const jchar *text, 543 jint start, jint count, jint contextCount, jint flags, 544 jfloatArray advances, jint advancesIndex) { 545 NPE_CHECK_RETURN_ZERO(env, paint); 546 NPE_CHECK_RETURN_ZERO(env, text); 547 548 if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) { 549 doThrowAIOOBE(env); 550 return 0; 551 } 552 if (count == 0) { 553 return 0; 554 } 555 if (advances) { 556 size_t advancesLength = env->GetArrayLength(advances); 557 if ((size_t)count > advancesLength) { 558 doThrowAIOOBE(env); 559 return 0; 560 } 561 } 562 563 jfloat advancesArray[count]; 564 jfloat totalAdvance = 0; 565 566 TextLayout::getTextRunAdvancesICU(paint, text, start, count, contextCount, flags, 567 advancesArray, totalAdvance); 568 569 if (advances != NULL) { 570 env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray); 571 } 572 return totalAdvance; 573 } 574 575 static float getTextRunAdvances___CIIIII_FII(JNIEnv* env, jobject clazz, SkPaint* paint, 576 jcharArray text, jint index, jint count, jint contextIndex, jint contextCount, 577 jint flags, jfloatArray advances, jint advancesIndex, jint reserved) { 578 jchar* textArray = env->GetCharArrayElements(text, NULL); 579 jfloat result = (reserved == 0) ? 580 doTextRunAdvances(env, paint, textArray + contextIndex, index - contextIndex, 581 count, contextCount, flags, advances, advancesIndex) : 582 doTextRunAdvancesICU(env, paint, textArray + contextIndex, index - contextIndex, 583 count, contextCount, flags, advances, advancesIndex); 584 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 585 return result; 586 } 587 588 static float getTextRunAdvances__StringIIIII_FII(JNIEnv* env, jobject clazz, SkPaint* paint, 589 jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint flags, 590 jfloatArray advances, jint advancesIndex, jint reserved) { 591 const jchar* textArray = env->GetStringChars(text, NULL); 592 jfloat result = (reserved == 0) ? 593 doTextRunAdvances(env, paint, textArray + contextStart, start - contextStart, 594 end - start, contextEnd - contextStart, flags, advances, advancesIndex) : 595 doTextRunAdvancesICU(env, paint, textArray + contextStart, start - contextStart, 596 end - start, contextEnd - contextStart, flags, advances, advancesIndex); 597 env->ReleaseStringChars(text, textArray); 598 return result; 599 } 600 601 static jint doTextRunCursor(JNIEnv *env, SkPaint* paint, const jchar *text, jint start, 602 jint count, jint flags, jint offset, jint opt) { 603#if RTL_USE_HARFBUZZ 604 jfloat scalarArray[count]; 605 606 TextLayout::getTextRunAdvances(paint, text, start, count, count, flags, 607 scalarArray, NULL /* dont need totalAdvance */); 608#else 609 SkScalar scalarArray[count]; 610 jchar buffer[count]; 611 612 // this is where we'd call harfbuzz 613 // for now we just use ushape.c and widths returned from skia 614 615 int widths; 616 if (flags & 0x1) { // rtl, call arabic shaping in case 617 UErrorCode status = U_ZERO_ERROR; 618 // Use fixed length since we need to keep start and count valid 619 u_shapeArabic(text + start, count, buffer, count, 620 U_SHAPE_LENGTH_FIXED_SPACES_NEAR | U_SHAPE_TEXT_DIRECTION_LOGICAL | 621 U_SHAPE_LETTERS_SHAPE | U_SHAPE_X_LAMALEF_SUB_ALTERNATE, &status); 622 // we shouldn't fail unless there's an out of memory condition, 623 // in which case we're hosed anyway 624 for (int i = 0; i < count; ++i) { 625 if (buffer[i] == 0xffff) { 626 buffer[i] = 0x200b; // zero-width-space for skia 627 } 628 } 629 widths = paint->getTextWidths(buffer, count << 1, scalarArray); 630 } else { 631 widths = paint->getTextWidths(text + start, count << 1, scalarArray); 632 } 633 634 if (widths < count) { 635 // Skia operates on code points, not code units, so surrogate pairs return only one 636 // value. Expand the result so we have one value per UTF-16 code unit. 637 638 // Note, skia's getTextWidth gets confused if it encounters a surrogate pair, 639 // leaving the remaining widths zero. Not nice. 640 const jchar *chars = text + start; 641 for (int i = count, p = widths - 1; --i > p;) { 642 if (chars[i] >= 0xdc00 && chars[i] < 0xe000 && 643 chars[i-1] >= 0xd800 && chars[i-1] < 0xdc00) { 644 scalarArray[i] = 0; 645 } else { 646 scalarArray[i] = scalarArray[--p]; 647 } 648 } 649 } 650#endif 651 jint pos = offset - start; 652 switch (opt) { 653 case AFTER: 654 if (pos < count) { 655 pos += 1; 656 } 657 // fall through 658 case AT_OR_AFTER: 659 while (pos < count && scalarArray[pos] == 0) { 660 ++pos; 661 } 662 break; 663 case BEFORE: 664 if (pos > 0) { 665 --pos; 666 } 667 // fall through 668 case AT_OR_BEFORE: 669 while (pos > 0 && scalarArray[pos] == 0) { 670 --pos; 671 } 672 break; 673 case AT: 674 default: 675 if (scalarArray[pos] == 0) { 676 pos = -1; 677 } 678 break; 679 } 680 681 if (pos != -1) { 682 pos += start; 683 } 684 685 return pos; 686 } 687 688 static jint getTextRunCursor___C(JNIEnv* env, jobject clazz, SkPaint* paint, jcharArray text, 689 jint contextStart, jint contextCount, jint flags, jint offset, jint cursorOpt) { 690 jchar* textArray = env->GetCharArrayElements(text, NULL); 691 jint result = doTextRunCursor(env, paint, textArray, contextStart, contextCount, flags, 692 offset, cursorOpt); 693 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 694 return result; 695 } 696 697 static jint getTextRunCursor__String(JNIEnv* env, jobject clazz, SkPaint* paint, jstring text, 698 jint contextStart, jint contextEnd, jint flags, jint offset, jint cursorOpt) { 699 const jchar* textArray = env->GetStringChars(text, NULL); 700 jint result = doTextRunCursor(env, paint, textArray, contextStart, 701 contextEnd - contextStart, flags, offset, cursorOpt); 702 env->ReleaseStringChars(text, textArray); 703 return result; 704 } 705 706 static void getTextPath(JNIEnv* env, SkPaint* paint, const jchar* text, jint count, 707 jint bidiFlags, jfloat x, jfloat y, SkPath *path) { 708 TextLayout::getTextPath(paint, text, count, bidiFlags, x, y, path); 709 } 710 711 static void getTextPath___C(JNIEnv* env, jobject clazz, SkPaint* paint, jint bidiFlags, 712 jcharArray text, int index, int count, jfloat x, jfloat y, SkPath* path) { 713 const jchar* textArray = env->GetCharArrayElements(text, NULL); 714 getTextPath(env, paint, textArray + index, count, bidiFlags, x, y, path); 715 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); 716 } 717 718 static void getTextPath__String(JNIEnv* env, jobject clazz, SkPaint* paint, jint bidiFlags, 719 jstring text, int start, int end, jfloat x, jfloat y, SkPath* path) { 720 const jchar* textArray = env->GetStringChars(text, NULL); 721 getTextPath(env, paint, textArray + start, end - start, bidiFlags, x, y, path); 722 env->ReleaseStringChars(text, textArray); 723 } 724 725 static void setShadowLayer(JNIEnv* env, jobject jpaint, jfloat radius, 726 jfloat dx, jfloat dy, int color) { 727 NPE_CHECK_RETURN_VOID(env, jpaint); 728 729 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 730 if (radius <= 0) { 731 paint->setLooper(NULL); 732 } 733 else { 734 paint->setLooper(new SkBlurDrawLooper(SkFloatToScalar(radius), 735 SkFloatToScalar(dx), 736 SkFloatToScalar(dy), 737 (SkColor)color))->unref(); 738 } 739 } 740 741 static int breakText(JNIEnv* env, const SkPaint& paint, const jchar text[], 742 int count, float maxWidth, jfloatArray jmeasured, 743 SkPaint::TextBufferDirection tbd) { 744 SkASSERT(paint.getTextEncoding() == SkPaint::kUTF16_TextEncoding); 745 746 SkScalar measured; 747 size_t bytes = paint.breakText(text, count << 1, 748 SkFloatToScalar(maxWidth), &measured, tbd); 749 SkASSERT((bytes & 1) == 0); 750 751 if (jmeasured && env->GetArrayLength(jmeasured) > 0) { 752 AutoJavaFloatArray autoMeasured(env, jmeasured, 1); 753 jfloat* array = autoMeasured.ptr(); 754 array[0] = SkScalarToFloat(measured); 755 } 756 return bytes >> 1; 757 } 758 759 static int breakTextC(JNIEnv* env, jobject jpaint, jcharArray jtext, 760 int index, int count, float maxWidth, jfloatArray jmeasuredWidth) { 761 NPE_CHECK_RETURN_ZERO(env, jpaint); 762 NPE_CHECK_RETURN_ZERO(env, jtext); 763 764 SkPaint::TextBufferDirection tbd; 765 if (count < 0) { 766 tbd = SkPaint::kBackward_TextBufferDirection; 767 count = -count; 768 } 769 else { 770 tbd = SkPaint::kForward_TextBufferDirection; 771 } 772 773 if ((index < 0) || (index + count > env->GetArrayLength(jtext))) { 774 doThrowAIOOBE(env); 775 return 0; 776 } 777 778 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 779 const jchar* text = env->GetCharArrayElements(jtext, NULL); 780 count = breakText(env, *paint, text + index, count, maxWidth, 781 jmeasuredWidth, tbd); 782 env->ReleaseCharArrayElements(jtext, const_cast<jchar*>(text), 783 JNI_ABORT); 784 return count; 785 } 786 787 static int breakTextS(JNIEnv* env, jobject jpaint, jstring jtext, 788 bool forwards, float maxWidth, jfloatArray jmeasuredWidth) { 789 NPE_CHECK_RETURN_ZERO(env, jpaint); 790 NPE_CHECK_RETURN_ZERO(env, jtext); 791 792 SkPaint::TextBufferDirection tbd = forwards ? 793 SkPaint::kForward_TextBufferDirection : 794 SkPaint::kBackward_TextBufferDirection; 795 796 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 797 int count = env->GetStringLength(jtext); 798 const jchar* text = env->GetStringChars(jtext, NULL); 799 count = breakText(env, *paint, text, count, maxWidth, 800 jmeasuredWidth, tbd); 801 env->ReleaseStringChars(jtext, text); 802 return count; 803 } 804 805 static void doTextBounds(JNIEnv* env, const jchar* text, int count, 806 jobject bounds, const SkPaint& paint) 807 { 808 SkRect r; 809 SkIRect ir; 810 811 paint.measureText(text, count << 1, &r); 812 r.roundOut(&ir); 813 GraphicsJNI::irect_to_jrect(ir, env, bounds); 814 } 815 816 static void getStringBounds(JNIEnv* env, jobject, const SkPaint* paint, 817 jstring text, int start, int end, jobject bounds) 818 { 819 const jchar* textArray = env->GetStringChars(text, NULL); 820 doTextBounds(env, textArray + start, end - start, bounds, *paint); 821 env->ReleaseStringChars(text, textArray); 822 } 823 824 static void getCharArrayBounds(JNIEnv* env, jobject, const SkPaint* paint, 825 jcharArray text, int index, int count, jobject bounds) 826 { 827 const jchar* textArray = env->GetCharArrayElements(text, NULL); 828 doTextBounds(env, textArray + index, count, bounds, *paint); 829 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), 830 JNI_ABORT); 831 } 832 833}; 834 835static JNINativeMethod methods[] = { 836 {"finalizer", "(I)V", (void*) SkPaintGlue::finalizer}, 837 {"native_init","()I", (void*) SkPaintGlue::init}, 838 {"native_initWithPaint","(I)I", (void*) SkPaintGlue::intiWithPaint}, 839 {"native_reset","(I)V", (void*) SkPaintGlue::reset}, 840 {"native_set","(II)V", (void*) SkPaintGlue::assign}, 841 {"getFlags","()I", (void*) SkPaintGlue::getFlags}, 842 {"setFlags","(I)V", (void*) SkPaintGlue::setFlags}, 843 {"getHinting","()I", (void*) SkPaintGlue::getHinting}, 844 {"setHinting","(I)V", (void*) SkPaintGlue::setHinting}, 845 {"setAntiAlias","(Z)V", (void*) SkPaintGlue::setAntiAlias}, 846 {"setSubpixelText","(Z)V", (void*) SkPaintGlue::setSubpixelText}, 847 {"setLinearText","(Z)V", (void*) SkPaintGlue::setLinearText}, 848 {"setUnderlineText","(Z)V", (void*) SkPaintGlue::setUnderlineText}, 849 {"setStrikeThruText","(Z)V", (void*) SkPaintGlue::setStrikeThruText}, 850 {"setFakeBoldText","(Z)V", (void*) SkPaintGlue::setFakeBoldText}, 851 {"setFilterBitmap","(Z)V", (void*) SkPaintGlue::setFilterBitmap}, 852 {"setDither","(Z)V", (void*) SkPaintGlue::setDither}, 853 {"native_getStyle","(I)I", (void*) SkPaintGlue::getStyle}, 854 {"native_setStyle","(II)V", (void*) SkPaintGlue::setStyle}, 855 {"getColor","()I", (void*) SkPaintGlue::getColor}, 856 {"setColor","(I)V", (void*) SkPaintGlue::setColor}, 857 {"getAlpha","()I", (void*) SkPaintGlue::getAlpha}, 858 {"setAlpha","(I)V", (void*) SkPaintGlue::setAlpha}, 859 {"getStrokeWidth","()F", (void*) SkPaintGlue::getStrokeWidth}, 860 {"setStrokeWidth","(F)V", (void*) SkPaintGlue::setStrokeWidth}, 861 {"getStrokeMiter","()F", (void*) SkPaintGlue::getStrokeMiter}, 862 {"setStrokeMiter","(F)V", (void*) SkPaintGlue::setStrokeMiter}, 863 {"native_getStrokeCap","(I)I", (void*) SkPaintGlue::getStrokeCap}, 864 {"native_setStrokeCap","(II)V", (void*) SkPaintGlue::setStrokeCap}, 865 {"native_getStrokeJoin","(I)I", (void*) SkPaintGlue::getStrokeJoin}, 866 {"native_setStrokeJoin","(II)V", (void*) SkPaintGlue::setStrokeJoin}, 867 {"native_getFillPath","(III)Z", (void*) SkPaintGlue::getFillPath}, 868 {"native_setShader","(II)I", (void*) SkPaintGlue::setShader}, 869 {"native_setColorFilter","(II)I", (void*) SkPaintGlue::setColorFilter}, 870 {"native_setXfermode","(II)I", (void*) SkPaintGlue::setXfermode}, 871 {"native_setPathEffect","(II)I", (void*) SkPaintGlue::setPathEffect}, 872 {"native_setMaskFilter","(II)I", (void*) SkPaintGlue::setMaskFilter}, 873 {"native_setTypeface","(II)I", (void*) SkPaintGlue::setTypeface}, 874 {"native_setRasterizer","(II)I", (void*) SkPaintGlue::setRasterizer}, 875 {"native_getTextAlign","(I)I", (void*) SkPaintGlue::getTextAlign}, 876 {"native_setTextAlign","(II)V", (void*) SkPaintGlue::setTextAlign}, 877 {"getTextSize","()F", (void*) SkPaintGlue::getTextSize}, 878 {"setTextSize","(F)V", (void*) SkPaintGlue::setTextSize}, 879 {"getTextScaleX","()F", (void*) SkPaintGlue::getTextScaleX}, 880 {"setTextScaleX","(F)V", (void*) SkPaintGlue::setTextScaleX}, 881 {"getTextSkewX","()F", (void*) SkPaintGlue::getTextSkewX}, 882 {"setTextSkewX","(F)V", (void*) SkPaintGlue::setTextSkewX}, 883 {"ascent","()F", (void*) SkPaintGlue::ascent}, 884 {"descent","()F", (void*) SkPaintGlue::descent}, 885 {"getFontMetrics", "(Landroid/graphics/Paint$FontMetrics;)F", (void*)SkPaintGlue::getFontMetrics}, 886 {"getFontMetricsInt", "(Landroid/graphics/Paint$FontMetricsInt;)I", (void*)SkPaintGlue::getFontMetricsInt}, 887 {"native_measureText","([CII)F", (void*) SkPaintGlue::measureText_CII}, 888 {"native_measureText","(Ljava/lang/String;)F", (void*) SkPaintGlue::measureText_String}, 889 {"native_measureText","(Ljava/lang/String;II)F", (void*) SkPaintGlue::measureText_StringII}, 890 {"native_breakText","([CIIF[F)I", (void*) SkPaintGlue::breakTextC}, 891 {"native_breakText","(Ljava/lang/String;ZF[F)I", (void*) SkPaintGlue::breakTextS}, 892 {"native_getTextWidths","(I[CII[F)I", (void*) SkPaintGlue::getTextWidths___CII_F}, 893 {"native_getTextWidths","(ILjava/lang/String;II[F)I", (void*) SkPaintGlue::getTextWidths__StringII_F}, 894 {"native_getTextRunAdvances","(I[CIIIII[FII)F", 895 (void*) SkPaintGlue::getTextRunAdvances___CIIIII_FII}, 896 {"native_getTextRunAdvances","(ILjava/lang/String;IIIII[FII)F", 897 (void*) SkPaintGlue::getTextRunAdvances__StringIIIII_FII}, 898 899 900 {"native_getTextGlyphs","(ILjava/lang/String;IIIII[C)I", 901 (void*) SkPaintGlue::getTextGlyphs__StringIIIII_C}, 902 {"native_getTextRunCursor", "(I[CIIIII)I", (void*) SkPaintGlue::getTextRunCursor___C}, 903 {"native_getTextRunCursor", "(ILjava/lang/String;IIIII)I", 904 (void*) SkPaintGlue::getTextRunCursor__String}, 905 {"native_getTextPath","(II[CIIFFI)V", (void*) SkPaintGlue::getTextPath___C}, 906 {"native_getTextPath","(IILjava/lang/String;IIFFI)V", (void*) SkPaintGlue::getTextPath__String}, 907 {"nativeGetStringBounds", "(ILjava/lang/String;IILandroid/graphics/Rect;)V", 908 (void*) SkPaintGlue::getStringBounds }, 909 {"nativeGetCharArrayBounds", "(I[CIILandroid/graphics/Rect;)V", 910 (void*) SkPaintGlue::getCharArrayBounds }, 911 {"nSetShadowLayer", "(FFFI)V", (void*)SkPaintGlue::setShadowLayer} 912}; 913 914static jfieldID req_fieldID(jfieldID id) { 915 SkASSERT(id); 916 return id; 917} 918 919int register_android_graphics_Paint(JNIEnv* env) { 920 gFontMetrics_class = env->FindClass("android/graphics/Paint$FontMetrics"); 921 SkASSERT(gFontMetrics_class); 922 gFontMetrics_class = (jclass)env->NewGlobalRef(gFontMetrics_class); 923 924 gFontMetrics_fieldID.top = req_fieldID(env->GetFieldID(gFontMetrics_class, "top", "F")); 925 gFontMetrics_fieldID.ascent = req_fieldID(env->GetFieldID(gFontMetrics_class, "ascent", "F")); 926 gFontMetrics_fieldID.descent = req_fieldID(env->GetFieldID(gFontMetrics_class, "descent", "F")); 927 gFontMetrics_fieldID.bottom = req_fieldID(env->GetFieldID(gFontMetrics_class, "bottom", "F")); 928 gFontMetrics_fieldID.leading = req_fieldID(env->GetFieldID(gFontMetrics_class, "leading", "F")); 929 930 gFontMetricsInt_class = env->FindClass("android/graphics/Paint$FontMetricsInt"); 931 SkASSERT(gFontMetricsInt_class); 932 gFontMetricsInt_class = (jclass)env->NewGlobalRef(gFontMetricsInt_class); 933 934 gFontMetricsInt_fieldID.top = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "top", "I")); 935 gFontMetricsInt_fieldID.ascent = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "ascent", "I")); 936 gFontMetricsInt_fieldID.descent = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "descent", "I")); 937 gFontMetricsInt_fieldID.bottom = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "bottom", "I")); 938 gFontMetricsInt_fieldID.leading = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "leading", "I")); 939 940 int result = AndroidRuntime::registerNativeMethods(env, "android/graphics/Paint", methods, 941 sizeof(methods) / sizeof(methods[0])); 942 return result; 943} 944 945} 946