1 /* libs/android_runtime/android/graphics/Paint.cpp 2 ** 3 ** Copyright 2006, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #define LOG_TAG "Paint" 19 20 #include <utils/Log.h> 21 22 #include "jni.h" 23 #include "GraphicsJNI.h" 24 #include <android_runtime/AndroidRuntime.h> 25 #include <ScopedUtfChars.h> 26 27 #include "SkBlurDrawLooper.h" 28 #include "SkColorFilter.h" 29 #include "SkMaskFilter.h" 30 #include "SkRasterizer.h" 31 #include "SkShader.h" 32 #include "SkTypeface.h" 33 #include "SkXfermode.h" 34 #include "unicode/uloc.h" 35 #include "unicode/ushape.h" 36 #include "utils/Blur.h" 37 38 #include <minikin/GraphemeBreak.h> 39 #include "MinikinSkia.h" 40 #include "MinikinUtils.h" 41 #include "Paint.h" 42 #include "TypefaceImpl.h" 43 44 // temporary for debugging 45 #include <Caches.h> 46 #include <utils/Log.h> 47 48 namespace android { 49 50 struct JMetricsID { 51 jfieldID top; 52 jfieldID ascent; 53 jfieldID descent; 54 jfieldID bottom; 55 jfieldID leading; 56 }; 57 58 static jclass gFontMetrics_class; 59 static JMetricsID gFontMetrics_fieldID; 60 61 static jclass gFontMetricsInt_class; 62 static JMetricsID gFontMetricsInt_fieldID; 63 64 static void defaultSettingsForAndroid(Paint* paint) { 65 // GlyphID encoding is required because we are using Harfbuzz shaping 66 paint->setTextEncoding(Paint::kGlyphID_TextEncoding); 67 } 68 69 class PaintGlue { 70 public: 71 enum MoveOpt { 72 AFTER, AT_OR_AFTER, BEFORE, AT_OR_BEFORE, AT 73 }; 74 75 static void finalizer(JNIEnv* env, jobject clazz, jlong objHandle) { 76 Paint* obj = reinterpret_cast<Paint*>(objHandle); 77 delete obj; 78 } 79 80 static jlong init(JNIEnv* env, jobject clazz) { 81 Paint* obj = new Paint(); 82 defaultSettingsForAndroid(obj); 83 return reinterpret_cast<jlong>(obj); 84 } 85 86 static jlong initWithPaint(JNIEnv* env, jobject clazz, jlong paintHandle) { 87 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 88 Paint* obj = new Paint(*paint); 89 return reinterpret_cast<jlong>(obj); 90 } 91 92 static void reset(JNIEnv* env, jobject clazz, jlong objHandle) { 93 Paint* obj = reinterpret_cast<Paint*>(objHandle); 94 obj->reset(); 95 defaultSettingsForAndroid(obj); 96 } 97 98 static void assign(JNIEnv* env, jobject clazz, jlong dstPaintHandle, jlong srcPaintHandle) { 99 Paint* dst = reinterpret_cast<Paint*>(dstPaintHandle); 100 const Paint* src = reinterpret_cast<Paint*>(srcPaintHandle); 101 *dst = *src; 102 } 103 104 // Equivalent to the Java Paint's FILTER_BITMAP_FLAG. 105 static const uint32_t sFilterBitmapFlag = 0x02; 106 107 static jint getFlags(JNIEnv* env, jobject paint) { 108 NPE_CHECK_RETURN_ZERO(env, paint); 109 Paint* nativePaint = GraphicsJNI::getNativePaint(env, paint); 110 uint32_t result = nativePaint->getFlags(); 111 result &= ~sFilterBitmapFlag; // Filtering no longer stored in this bit. Mask away. 112 if (nativePaint->getFilterLevel() != Paint::kNone_FilterLevel) { 113 result |= sFilterBitmapFlag; 114 } 115 return static_cast<jint>(result); 116 } 117 118 static void setFlags(JNIEnv* env, jobject paint, jint flags) { 119 NPE_CHECK_RETURN_VOID(env, paint); 120 Paint* nativePaint = GraphicsJNI::getNativePaint(env, paint); 121 // Instead of modifying 0x02, change the filter level. 122 nativePaint->setFilterLevel(flags & sFilterBitmapFlag 123 ? Paint::kLow_FilterLevel 124 : Paint::kNone_FilterLevel); 125 // Don't pass through filter flag, which is no longer stored in paint's flags. 126 flags &= ~sFilterBitmapFlag; 127 // Use the existing value for 0x02. 128 const uint32_t existing0x02Flag = nativePaint->getFlags() & sFilterBitmapFlag; 129 flags |= existing0x02Flag; 130 nativePaint->setFlags(flags); 131 } 132 133 static jint getHinting(JNIEnv* env, jobject paint) { 134 NPE_CHECK_RETURN_ZERO(env, paint); 135 return GraphicsJNI::getNativePaint(env, paint)->getHinting() 136 == Paint::kNo_Hinting ? 0 : 1; 137 } 138 139 static void setHinting(JNIEnv* env, jobject paint, jint mode) { 140 NPE_CHECK_RETURN_VOID(env, paint); 141 GraphicsJNI::getNativePaint(env, paint)->setHinting( 142 mode == 0 ? Paint::kNo_Hinting : Paint::kNormal_Hinting); 143 } 144 145 static void setAntiAlias(JNIEnv* env, jobject paint, jboolean aa) { 146 NPE_CHECK_RETURN_VOID(env, paint); 147 GraphicsJNI::getNativePaint(env, paint)->setAntiAlias(aa); 148 } 149 150 static void setLinearText(JNIEnv* env, jobject paint, jboolean linearText) { 151 NPE_CHECK_RETURN_VOID(env, paint); 152 GraphicsJNI::getNativePaint(env, paint)->setLinearText(linearText); 153 } 154 155 static void setSubpixelText(JNIEnv* env, jobject paint, jboolean subpixelText) { 156 NPE_CHECK_RETURN_VOID(env, paint); 157 GraphicsJNI::getNativePaint(env, paint)->setSubpixelText(subpixelText); 158 } 159 160 static void setUnderlineText(JNIEnv* env, jobject paint, jboolean underlineText) { 161 NPE_CHECK_RETURN_VOID(env, paint); 162 GraphicsJNI::getNativePaint(env, paint)->setUnderlineText(underlineText); 163 } 164 165 static void setStrikeThruText(JNIEnv* env, jobject paint, jboolean strikeThruText) { 166 NPE_CHECK_RETURN_VOID(env, paint); 167 GraphicsJNI::getNativePaint(env, paint)->setStrikeThruText(strikeThruText); 168 } 169 170 static void setFakeBoldText(JNIEnv* env, jobject paint, jboolean fakeBoldText) { 171 NPE_CHECK_RETURN_VOID(env, paint); 172 GraphicsJNI::getNativePaint(env, paint)->setFakeBoldText(fakeBoldText); 173 } 174 175 static void setFilterBitmap(JNIEnv* env, jobject paint, jboolean filterBitmap) { 176 NPE_CHECK_RETURN_VOID(env, paint); 177 GraphicsJNI::getNativePaint(env, paint)->setFilterLevel( 178 filterBitmap ? Paint::kLow_FilterLevel : Paint::kNone_FilterLevel); 179 } 180 181 static void setDither(JNIEnv* env, jobject paint, jboolean dither) { 182 NPE_CHECK_RETURN_VOID(env, paint); 183 GraphicsJNI::getNativePaint(env, paint)->setDither(dither); 184 } 185 186 static jint getStyle(JNIEnv* env, jobject clazz,jlong objHandle) { 187 Paint* obj = reinterpret_cast<Paint*>(objHandle); 188 return static_cast<jint>(obj->getStyle()); 189 } 190 191 static void setStyle(JNIEnv* env, jobject clazz, jlong objHandle, jint styleHandle) { 192 Paint* obj = reinterpret_cast<Paint*>(objHandle); 193 Paint::Style style = static_cast<Paint::Style>(styleHandle); 194 obj->setStyle(style); 195 } 196 197 static jint getColor(JNIEnv* env, jobject paint) { 198 NPE_CHECK_RETURN_ZERO(env, paint); 199 int color; 200 color = GraphicsJNI::getNativePaint(env, paint)->getColor(); 201 return static_cast<jint>(color); 202 } 203 204 static jint getAlpha(JNIEnv* env, jobject paint) { 205 NPE_CHECK_RETURN_ZERO(env, paint); 206 int alpha; 207 alpha = GraphicsJNI::getNativePaint(env, paint)->getAlpha(); 208 return static_cast<jint>(alpha); 209 } 210 211 static void setColor(JNIEnv* env, jobject paint, jint color) { 212 NPE_CHECK_RETURN_VOID(env, paint); 213 GraphicsJNI::getNativePaint(env, paint)->setColor(color); 214 } 215 216 static void setAlpha(JNIEnv* env, jobject paint, jint a) { 217 NPE_CHECK_RETURN_VOID(env, paint); 218 GraphicsJNI::getNativePaint(env, paint)->setAlpha(a); 219 } 220 221 static jfloat getStrokeWidth(JNIEnv* env, jobject paint) { 222 NPE_CHECK_RETURN_ZERO(env, paint); 223 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getStrokeWidth()); 224 } 225 226 static void setStrokeWidth(JNIEnv* env, jobject paint, jfloat width) { 227 NPE_CHECK_RETURN_VOID(env, paint); 228 GraphicsJNI::getNativePaint(env, paint)->setStrokeWidth(width); 229 } 230 231 static jfloat getStrokeMiter(JNIEnv* env, jobject paint) { 232 NPE_CHECK_RETURN_ZERO(env, paint); 233 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getStrokeMiter()); 234 } 235 236 static void setStrokeMiter(JNIEnv* env, jobject paint, jfloat miter) { 237 NPE_CHECK_RETURN_VOID(env, paint); 238 GraphicsJNI::getNativePaint(env, paint)->setStrokeMiter(miter); 239 } 240 241 static jint getStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle) { 242 Paint* obj = reinterpret_cast<Paint*>(objHandle); 243 return static_cast<jint>(obj->getStrokeCap()); 244 } 245 246 static void setStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle, jint capHandle) { 247 Paint* obj = reinterpret_cast<Paint*>(objHandle); 248 Paint::Cap cap = static_cast<Paint::Cap>(capHandle); 249 obj->setStrokeCap(cap); 250 } 251 252 static jint getStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle) { 253 Paint* obj = reinterpret_cast<Paint*>(objHandle); 254 return static_cast<jint>(obj->getStrokeJoin()); 255 } 256 257 static void setStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle, jint joinHandle) { 258 Paint* obj = reinterpret_cast<Paint*>(objHandle); 259 Paint::Join join = (Paint::Join) joinHandle; 260 obj->setStrokeJoin(join); 261 } 262 263 static jboolean getFillPath(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle, jlong dstHandle) { 264 Paint* obj = reinterpret_cast<Paint*>(objHandle); 265 SkPath* src = reinterpret_cast<SkPath*>(srcHandle); 266 SkPath* dst = reinterpret_cast<SkPath*>(dstHandle); 267 return obj->getFillPath(*src, dst) ? JNI_TRUE : JNI_FALSE; 268 } 269 270 static jlong setShader(JNIEnv* env, jobject clazz, jlong objHandle, jlong shaderHandle) { 271 Paint* obj = reinterpret_cast<Paint*>(objHandle); 272 SkShader* shader = reinterpret_cast<SkShader*>(shaderHandle); 273 return reinterpret_cast<jlong>(obj->setShader(shader)); 274 } 275 276 static jlong setColorFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong filterHandle) { 277 Paint* obj = reinterpret_cast<Paint *>(objHandle); 278 SkColorFilter* filter = reinterpret_cast<SkColorFilter *>(filterHandle); 279 return reinterpret_cast<jlong>(obj->setColorFilter(filter)); 280 } 281 282 static jlong setXfermode(JNIEnv* env, jobject clazz, jlong objHandle, jlong xfermodeHandle) { 283 Paint* obj = reinterpret_cast<Paint*>(objHandle); 284 SkXfermode* xfermode = reinterpret_cast<SkXfermode*>(xfermodeHandle); 285 return reinterpret_cast<jlong>(obj->setXfermode(xfermode)); 286 } 287 288 static jlong setPathEffect(JNIEnv* env, jobject clazz, jlong objHandle, jlong effectHandle) { 289 Paint* obj = reinterpret_cast<Paint*>(objHandle); 290 SkPathEffect* effect = reinterpret_cast<SkPathEffect*>(effectHandle); 291 return reinterpret_cast<jlong>(obj->setPathEffect(effect)); 292 } 293 294 static jlong setMaskFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong maskfilterHandle) { 295 Paint* obj = reinterpret_cast<Paint*>(objHandle); 296 SkMaskFilter* maskfilter = reinterpret_cast<SkMaskFilter*>(maskfilterHandle); 297 return reinterpret_cast<jlong>(obj->setMaskFilter(maskfilter)); 298 } 299 300 static jlong setTypeface(JNIEnv* env, jobject clazz, jlong objHandle, jlong typefaceHandle) { 301 // TODO: in Paint refactoring, set typeface on android Paint, not Paint 302 return NULL; 303 } 304 305 static jlong setRasterizer(JNIEnv* env, jobject clazz, jlong objHandle, jlong rasterizerHandle) { 306 Paint* obj = reinterpret_cast<Paint*>(objHandle); 307 SkAutoTUnref<SkRasterizer> rasterizer(GraphicsJNI::refNativeRasterizer(rasterizerHandle)); 308 return reinterpret_cast<jlong>(obj->setRasterizer(rasterizer)); 309 } 310 311 static jint getTextAlign(JNIEnv* env, jobject clazz, jlong objHandle) { 312 Paint* obj = reinterpret_cast<Paint*>(objHandle); 313 return static_cast<jint>(obj->getTextAlign()); 314 } 315 316 static void setTextAlign(JNIEnv* env, jobject clazz, jlong objHandle, jint alignHandle) { 317 Paint* obj = reinterpret_cast<Paint*>(objHandle); 318 Paint::Align align = static_cast<Paint::Align>(alignHandle); 319 obj->setTextAlign(align); 320 } 321 322 // generate bcp47 identifier for the supplied locale 323 static void toLanguageTag(char* output, size_t outSize, 324 const char* locale) { 325 if (output == NULL || outSize <= 0) { 326 return; 327 } 328 if (locale == NULL) { 329 output[0] = '\0'; 330 return; 331 } 332 char canonicalChars[ULOC_FULLNAME_CAPACITY]; 333 UErrorCode uErr = U_ZERO_ERROR; 334 uloc_canonicalize(locale, canonicalChars, ULOC_FULLNAME_CAPACITY, 335 &uErr); 336 if (U_SUCCESS(uErr)) { 337 char likelyChars[ULOC_FULLNAME_CAPACITY]; 338 uErr = U_ZERO_ERROR; 339 uloc_addLikelySubtags(canonicalChars, likelyChars, 340 ULOC_FULLNAME_CAPACITY, &uErr); 341 if (U_SUCCESS(uErr)) { 342 uErr = U_ZERO_ERROR; 343 uloc_toLanguageTag(likelyChars, output, outSize, FALSE, &uErr); 344 if (U_SUCCESS(uErr)) { 345 return; 346 } else { 347 ALOGD("uloc_toLanguageTag(\"%s\") failed: %s", likelyChars, 348 u_errorName(uErr)); 349 } 350 } else { 351 ALOGD("uloc_addLikelySubtags(\"%s\") failed: %s", 352 canonicalChars, u_errorName(uErr)); 353 } 354 } else { 355 ALOGD("uloc_canonicalize(\"%s\") failed: %s", locale, 356 u_errorName(uErr)); 357 } 358 // unable to build a proper language identifier 359 output[0] = '\0'; 360 } 361 362 static void setTextLocale(JNIEnv* env, jobject clazz, jlong objHandle, jstring locale) { 363 Paint* obj = reinterpret_cast<Paint*>(objHandle); 364 ScopedUtfChars localeChars(env, locale); 365 char langTag[ULOC_FULLNAME_CAPACITY]; 366 toLanguageTag(langTag, ULOC_FULLNAME_CAPACITY, localeChars.c_str()); 367 368 obj->setTextLocale(langTag); 369 } 370 371 static jboolean isElegantTextHeight(JNIEnv* env, jobject paint) { 372 NPE_CHECK_RETURN_ZERO(env, paint); 373 Paint* obj = GraphicsJNI::getNativePaint(env, paint); 374 return obj->getFontVariant() == VARIANT_ELEGANT; 375 } 376 377 static void setElegantTextHeight(JNIEnv* env, jobject paint, jboolean aa) { 378 NPE_CHECK_RETURN_VOID(env, paint); 379 Paint* obj = GraphicsJNI::getNativePaint(env, paint); 380 obj->setFontVariant(aa ? VARIANT_ELEGANT : VARIANT_DEFAULT); 381 } 382 383 static jfloat getTextSize(JNIEnv* env, jobject paint) { 384 NPE_CHECK_RETURN_ZERO(env, paint); 385 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextSize()); 386 } 387 388 static void setTextSize(JNIEnv* env, jobject paint, jfloat textSize) { 389 NPE_CHECK_RETURN_VOID(env, paint); 390 GraphicsJNI::getNativePaint(env, paint)->setTextSize(textSize); 391 } 392 393 static jfloat getTextScaleX(JNIEnv* env, jobject paint) { 394 NPE_CHECK_RETURN_ZERO(env, paint); 395 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextScaleX()); 396 } 397 398 static void setTextScaleX(JNIEnv* env, jobject paint, jfloat scaleX) { 399 NPE_CHECK_RETURN_VOID(env, paint); 400 GraphicsJNI::getNativePaint(env, paint)->setTextScaleX(scaleX); 401 } 402 403 static jfloat getTextSkewX(JNIEnv* env, jobject paint) { 404 NPE_CHECK_RETURN_ZERO(env, paint); 405 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextSkewX()); 406 } 407 408 static void setTextSkewX(JNIEnv* env, jobject paint, jfloat skewX) { 409 NPE_CHECK_RETURN_VOID(env, paint); 410 GraphicsJNI::getNativePaint(env, paint)->setTextSkewX(skewX); 411 } 412 413 static jfloat getLetterSpacing(JNIEnv* env, jobject clazz, jlong paintHandle) { 414 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 415 return paint->getLetterSpacing(); 416 } 417 418 static void setLetterSpacing(JNIEnv* env, jobject clazz, jlong paintHandle, jfloat letterSpacing) { 419 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 420 paint->setLetterSpacing(letterSpacing); 421 } 422 423 static void setFontFeatureSettings(JNIEnv* env, jobject clazz, jlong paintHandle, jstring settings) { 424 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 425 if (!settings) { 426 paint->setFontFeatureSettings(std::string()); 427 } else { 428 ScopedUtfChars settingsChars(env, settings); 429 paint->setFontFeatureSettings(std::string(settingsChars.c_str(), settingsChars.size())); 430 } 431 } 432 433 static SkScalar getMetricsInternal(JNIEnv* env, jobject jpaint, Paint::FontMetrics *metrics) { 434 const int kElegantTop = 2500; 435 const int kElegantBottom = -1000; 436 const int kElegantAscent = 1900; 437 const int kElegantDescent = -500; 438 const int kElegantLeading = 0; 439 Paint* paint = GraphicsJNI::getNativePaint(env, jpaint); 440 TypefaceImpl* typeface = GraphicsJNI::getNativeTypeface(env, jpaint); 441 typeface = TypefaceImpl_resolveDefault(typeface); 442 FakedFont baseFont = typeface->fFontCollection->baseFontFaked(typeface->fStyle); 443 float saveSkewX = paint->getTextSkewX(); 444 bool savefakeBold = paint->isFakeBoldText(); 445 MinikinFontSkia::populateSkPaint(paint, baseFont.font, baseFont.fakery); 446 SkScalar spacing = paint->getFontMetrics(metrics); 447 // The populateSkPaint call may have changed fake bold / text skew 448 // because we want to measure with those effects applied, so now 449 // restore the original settings. 450 paint->setTextSkewX(saveSkewX); 451 paint->setFakeBoldText(savefakeBold); 452 if (paint->getFontVariant() == VARIANT_ELEGANT) { 453 SkScalar size = paint->getTextSize(); 454 metrics->fTop = -size * kElegantTop / 2048; 455 metrics->fBottom = -size * kElegantBottom / 2048; 456 metrics->fAscent = -size * kElegantAscent / 2048; 457 metrics->fDescent = -size * kElegantDescent / 2048; 458 metrics->fLeading = size * kElegantLeading / 2048; 459 spacing = metrics->fDescent - metrics->fAscent + metrics->fLeading; 460 } 461 return spacing; 462 } 463 464 static jfloat ascent(JNIEnv* env, jobject paint) { 465 NPE_CHECK_RETURN_ZERO(env, paint); 466 Paint::FontMetrics metrics; 467 getMetricsInternal(env, paint, &metrics); 468 return SkScalarToFloat(metrics.fAscent); 469 } 470 471 static jfloat descent(JNIEnv* env, jobject paint) { 472 NPE_CHECK_RETURN_ZERO(env, paint); 473 Paint::FontMetrics metrics; 474 getMetricsInternal(env, paint, &metrics); 475 return SkScalarToFloat(metrics.fDescent); 476 } 477 478 static jfloat getFontMetrics(JNIEnv* env, jobject paint, jobject metricsObj) { 479 NPE_CHECK_RETURN_ZERO(env, paint); 480 Paint::FontMetrics metrics; 481 SkScalar spacing = getMetricsInternal(env, paint, &metrics); 482 483 if (metricsObj) { 484 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetrics_class)); 485 env->SetFloatField(metricsObj, gFontMetrics_fieldID.top, SkScalarToFloat(metrics.fTop)); 486 env->SetFloatField(metricsObj, gFontMetrics_fieldID.ascent, SkScalarToFloat(metrics.fAscent)); 487 env->SetFloatField(metricsObj, gFontMetrics_fieldID.descent, SkScalarToFloat(metrics.fDescent)); 488 env->SetFloatField(metricsObj, gFontMetrics_fieldID.bottom, SkScalarToFloat(metrics.fBottom)); 489 env->SetFloatField(metricsObj, gFontMetrics_fieldID.leading, SkScalarToFloat(metrics.fLeading)); 490 } 491 return SkScalarToFloat(spacing); 492 } 493 494 static jint getFontMetricsInt(JNIEnv* env, jobject paint, jobject metricsObj) { 495 NPE_CHECK_RETURN_ZERO(env, paint); 496 Paint::FontMetrics metrics; 497 498 getMetricsInternal(env, paint, &metrics); 499 int ascent = SkScalarRoundToInt(metrics.fAscent); 500 int descent = SkScalarRoundToInt(metrics.fDescent); 501 int leading = SkScalarRoundToInt(metrics.fLeading); 502 503 if (metricsObj) { 504 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetricsInt_class)); 505 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.top, SkScalarFloorToInt(metrics.fTop)); 506 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.ascent, ascent); 507 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.descent, descent); 508 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.bottom, SkScalarCeilToInt(metrics.fBottom)); 509 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.leading, leading); 510 } 511 return descent - ascent + leading; 512 } 513 514 static jfloat measureText_CIII(JNIEnv* env, jobject jpaint, jcharArray text, jint index, jint count, 515 jint bidiFlags) { 516 NPE_CHECK_RETURN_ZERO(env, jpaint); 517 NPE_CHECK_RETURN_ZERO(env, text); 518 519 size_t textLength = env->GetArrayLength(text); 520 if ((index | count) < 0 || (size_t)(index + count) > textLength) { 521 doThrowAIOOBE(env); 522 return 0; 523 } 524 if (count == 0) { 525 return 0; 526 } 527 528 Paint* paint = GraphicsJNI::getNativePaint(env, jpaint); 529 const jchar* textArray = env->GetCharArrayElements(text, NULL); 530 jfloat result = 0; 531 532 Layout layout; 533 TypefaceImpl* typeface = GraphicsJNI::getNativeTypeface(env, jpaint); 534 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, textArray, index, count, textLength); 535 result = layout.getAdvance(); 536 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); 537 return result; 538 } 539 540 static jfloat measureText_StringIII(JNIEnv* env, jobject jpaint, jstring text, jint start, jint end, 541 jint bidiFlags) { 542 NPE_CHECK_RETURN_ZERO(env, jpaint); 543 NPE_CHECK_RETURN_ZERO(env, text); 544 545 size_t textLength = env->GetStringLength(text); 546 int count = end - start; 547 if ((start | count) < 0 || (size_t)end > textLength) { 548 doThrowAIOOBE(env); 549 return 0; 550 } 551 if (count == 0) { 552 return 0; 553 } 554 555 const jchar* textArray = env->GetStringChars(text, NULL); 556 Paint* paint = GraphicsJNI::getNativePaint(env, jpaint); 557 jfloat width = 0; 558 559 Layout layout; 560 TypefaceImpl* typeface = GraphicsJNI::getNativeTypeface(env, jpaint); 561 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, textArray, start, count, textLength); 562 width = layout.getAdvance(); 563 564 env->ReleaseStringChars(text, textArray); 565 return width; 566 } 567 568 static jfloat measureText_StringI(JNIEnv* env, jobject jpaint, jstring text, jint bidiFlags) { 569 NPE_CHECK_RETURN_ZERO(env, jpaint); 570 NPE_CHECK_RETURN_ZERO(env, text); 571 572 size_t textLength = env->GetStringLength(text); 573 if (textLength == 0) { 574 return 0; 575 } 576 577 const jchar* textArray = env->GetStringChars(text, NULL); 578 Paint* paint = GraphicsJNI::getNativePaint(env, jpaint); 579 jfloat width = 0; 580 581 Layout layout; 582 TypefaceImpl* typeface = GraphicsJNI::getNativeTypeface(env, jpaint); 583 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, textArray, 0, textLength, textLength); 584 width = layout.getAdvance(); 585 586 env->ReleaseStringChars(text, textArray); 587 return width; 588 } 589 590 static int dotextwidths(JNIEnv* env, Paint* paint, TypefaceImpl* typeface, const jchar text[], int count, 591 jfloatArray widths, jint bidiFlags) { 592 NPE_CHECK_RETURN_ZERO(env, paint); 593 NPE_CHECK_RETURN_ZERO(env, text); 594 595 if (count < 0 || !widths) { 596 doThrowAIOOBE(env); 597 return 0; 598 } 599 if (count == 0) { 600 return 0; 601 } 602 size_t widthsLength = env->GetArrayLength(widths); 603 if ((size_t)count > widthsLength) { 604 doThrowAIOOBE(env); 605 return 0; 606 } 607 608 AutoJavaFloatArray autoWidths(env, widths, count); 609 jfloat* widthsArray = autoWidths.ptr(); 610 611 Layout layout; 612 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, 0, count, count); 613 layout.getAdvances(widthsArray); 614 615 return count; 616 } 617 618 static jint getTextWidths___CIII_F(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jcharArray text, 619 jint index, jint count, jint bidiFlags, jfloatArray widths) { 620 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 621 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 622 const jchar* textArray = env->GetCharArrayElements(text, NULL); 623 count = dotextwidths(env, paint, typeface, textArray + index, count, widths, bidiFlags); 624 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), 625 JNI_ABORT); 626 return count; 627 } 628 629 static jint getTextWidths__StringIII_F(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jstring text, 630 jint start, jint end, jint bidiFlags, jfloatArray widths) { 631 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 632 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 633 const jchar* textArray = env->GetStringChars(text, NULL); 634 int count = dotextwidths(env, paint, typeface, textArray + start, end - start, widths, bidiFlags); 635 env->ReleaseStringChars(text, textArray); 636 return count; 637 } 638 639 static jfloat doTextRunAdvances(JNIEnv *env, Paint *paint, TypefaceImpl* typeface, const jchar *text, 640 jint start, jint count, jint contextCount, jboolean isRtl, 641 jfloatArray advances, jint advancesIndex) { 642 NPE_CHECK_RETURN_ZERO(env, paint); 643 NPE_CHECK_RETURN_ZERO(env, text); 644 645 if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) { 646 doThrowAIOOBE(env); 647 return 0; 648 } 649 if (count == 0) { 650 return 0; 651 } 652 if (advances) { 653 size_t advancesLength = env->GetArrayLength(advances); 654 if ((size_t)count > advancesLength) { 655 doThrowAIOOBE(env); 656 return 0; 657 } 658 } 659 jfloat* advancesArray = new jfloat[count]; 660 jfloat totalAdvance = 0; 661 662 int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR; 663 664 Layout layout; 665 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, start, count, contextCount); 666 layout.getAdvances(advancesArray); 667 totalAdvance = layout.getAdvance(); 668 669 if (advances != NULL) { 670 env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray); 671 } 672 delete [] advancesArray; 673 return totalAdvance; 674 } 675 676 static jfloat getTextRunAdvances___CIIIIZ_FI(JNIEnv* env, jobject clazz, jlong paintHandle, 677 jlong typefaceHandle, 678 jcharArray text, jint index, jint count, jint contextIndex, jint contextCount, 679 jboolean isRtl, jfloatArray advances, jint advancesIndex) { 680 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 681 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 682 jchar* textArray = env->GetCharArrayElements(text, NULL); 683 jfloat result = doTextRunAdvances(env, paint, typeface, textArray + contextIndex, 684 index - contextIndex, count, contextCount, isRtl, advances, advancesIndex); 685 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 686 return result; 687 } 688 689 static jfloat getTextRunAdvances__StringIIIIZ_FI(JNIEnv* env, jobject clazz, jlong paintHandle, 690 jlong typefaceHandle, 691 jstring text, jint start, jint end, jint contextStart, jint contextEnd, jboolean isRtl, 692 jfloatArray advances, jint advancesIndex) { 693 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 694 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 695 const jchar* textArray = env->GetStringChars(text, NULL); 696 jfloat result = doTextRunAdvances(env, paint, typeface, textArray + contextStart, 697 start - contextStart, end - start, contextEnd - contextStart, isRtl, 698 advances, advancesIndex); 699 env->ReleaseStringChars(text, textArray); 700 return result; 701 } 702 703 static jint doTextRunCursor(JNIEnv *env, Paint* paint, const jchar *text, jint start, 704 jint count, jint flags, jint offset, jint opt) { 705 GraphemeBreak::MoveOpt moveOpt = GraphemeBreak::MoveOpt(opt); 706 size_t result = GraphemeBreak::getTextRunCursor(text, start, count, offset, moveOpt); 707 return static_cast<jint>(result); 708 } 709 710 static jint getTextRunCursor___C(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray text, 711 jint contextStart, jint contextCount, jint dir, jint offset, jint cursorOpt) { 712 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 713 jchar* textArray = env->GetCharArrayElements(text, NULL); 714 jint result = doTextRunCursor(env, paint, textArray, contextStart, contextCount, dir, 715 offset, cursorOpt); 716 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 717 return result; 718 } 719 720 static jint getTextRunCursor__String(JNIEnv* env, jobject clazz, jlong paintHandle, jstring text, 721 jint contextStart, jint contextEnd, jint dir, jint offset, jint cursorOpt) { 722 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 723 const jchar* textArray = env->GetStringChars(text, NULL); 724 jint result = doTextRunCursor(env, paint, textArray, contextStart, 725 contextEnd - contextStart, dir, offset, cursorOpt); 726 env->ReleaseStringChars(text, textArray); 727 return result; 728 } 729 730 class GetTextFunctor { 731 public: 732 GetTextFunctor(const Layout& layout, SkPath* path, jfloat x, jfloat y, Paint* paint, 733 uint16_t* glyphs, SkPoint* pos) 734 : layout(layout), path(path), x(x), y(y), paint(paint), glyphs(glyphs), pos(pos) { 735 } 736 737 void operator()(size_t start, size_t end) { 738 for (size_t i = start; i < end; i++) { 739 glyphs[i] = layout.getGlyphId(i); 740 pos[i].fX = x + layout.getX(i); 741 pos[i].fY = y + layout.getY(i); 742 } 743 if (start == 0) { 744 paint->getPosTextPath(glyphs + start, (end - start) << 1, pos + start, path); 745 } else { 746 paint->getPosTextPath(glyphs + start, (end - start) << 1, pos + start, &tmpPath); 747 path->addPath(tmpPath); 748 } 749 } 750 private: 751 const Layout& layout; 752 SkPath* path; 753 jfloat x; 754 jfloat y; 755 Paint* paint; 756 uint16_t* glyphs; 757 SkPoint* pos; 758 SkPath tmpPath; 759 }; 760 761 static void getTextPath(JNIEnv* env, Paint* paint, TypefaceImpl* typeface, const jchar* text, 762 jint count, jint bidiFlags, jfloat x, jfloat y, SkPath* path) { 763 Layout layout; 764 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, 0, count, count); 765 size_t nGlyphs = layout.nGlyphs(); 766 uint16_t* glyphs = new uint16_t[nGlyphs]; 767 SkPoint* pos = new SkPoint[nGlyphs]; 768 769 x += MinikinUtils::xOffsetForTextAlign(paint, layout); 770 Paint::Align align = paint->getTextAlign(); 771 paint->setTextAlign(Paint::kLeft_Align); 772 paint->setTextEncoding(Paint::kGlyphID_TextEncoding); 773 GetTextFunctor f(layout, path, x, y, paint, glyphs, pos); 774 MinikinUtils::forFontRun(layout, paint, f); 775 paint->setTextAlign(align); 776 delete[] glyphs; 777 delete[] pos; 778 } 779 780 static void getTextPath___C(JNIEnv* env, jobject clazz, jlong paintHandle, 781 jlong typefaceHandle, jint bidiFlags, 782 jcharArray text, jint index, jint count, jfloat x, jfloat y, jlong pathHandle) { 783 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 784 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 785 SkPath* path = reinterpret_cast<SkPath*>(pathHandle); 786 const jchar* textArray = env->GetCharArrayElements(text, NULL); 787 getTextPath(env, paint, typeface, textArray + index, count, bidiFlags, x, y, path); 788 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); 789 } 790 791 static void getTextPath__String(JNIEnv* env, jobject clazz, jlong paintHandle, 792 jlong typefaceHandle, jint bidiFlags, 793 jstring text, jint start, jint end, jfloat x, jfloat y, jlong pathHandle) { 794 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 795 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 796 SkPath* path = reinterpret_cast<SkPath*>(pathHandle); 797 const jchar* textArray = env->GetStringChars(text, NULL); 798 getTextPath(env, paint, typeface, textArray + start, end - start, bidiFlags, x, y, path); 799 env->ReleaseStringChars(text, textArray); 800 } 801 802 static void setShadowLayer(JNIEnv* env, jobject clazz, jlong paintHandle, jfloat radius, 803 jfloat dx, jfloat dy, jint color) { 804 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 805 if (radius <= 0) { 806 paint->setLooper(NULL); 807 } 808 else { 809 SkScalar sigma = android::uirenderer::Blur::convertRadiusToSigma(radius); 810 paint->setLooper(SkBlurDrawLooper::Create((SkColor)color, sigma, dx, dy))->unref(); 811 } 812 } 813 814 static jboolean hasShadowLayer(JNIEnv* env, jobject clazz, jlong paintHandle) { 815 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 816 return paint->getLooper() && paint->getLooper()->asABlurShadow(NULL); 817 } 818 819 static int breakText(JNIEnv* env, const Paint& paint, TypefaceImpl* typeface, const jchar text[], 820 int count, float maxWidth, jint bidiFlags, jfloatArray jmeasured, 821 Paint::TextBufferDirection textBufferDirection) { 822 size_t measuredCount = 0; 823 float measured = 0; 824 825 Layout layout; 826 MinikinUtils::doLayout(&layout, &paint, bidiFlags, typeface, text, 0, count, count); 827 float* advances = new float[count]; 828 layout.getAdvances(advances); 829 const bool forwardScan = (textBufferDirection == Paint::kForward_TextBufferDirection); 830 for (int i = 0; i < count; i++) { 831 // traverse in the given direction 832 int index = forwardScan ? i : (count - i - 1); 833 float width = advances[index]; 834 if (measured + width > maxWidth) { 835 break; 836 } 837 // properly handle clusters when scanning backwards 838 if (forwardScan || width != 0.0f) { 839 measuredCount = i + 1; 840 } 841 measured += width; 842 } 843 delete[] advances; 844 845 if (jmeasured && env->GetArrayLength(jmeasured) > 0) { 846 AutoJavaFloatArray autoMeasured(env, jmeasured, 1); 847 jfloat* array = autoMeasured.ptr(); 848 array[0] = measured; 849 } 850 return measuredCount; 851 } 852 853 static jint breakTextC(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jcharArray jtext, 854 jint index, jint count, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { 855 NPE_CHECK_RETURN_ZERO(env, jtext); 856 857 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 858 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 859 860 Paint::TextBufferDirection tbd; 861 if (count < 0) { 862 tbd = Paint::kBackward_TextBufferDirection; 863 count = -count; 864 } 865 else { 866 tbd = Paint::kForward_TextBufferDirection; 867 } 868 869 if ((index < 0) || (index + count > env->GetArrayLength(jtext))) { 870 doThrowAIOOBE(env); 871 return 0; 872 } 873 874 const jchar* text = env->GetCharArrayElements(jtext, NULL); 875 count = breakText(env, *paint, typeface, text + index, count, maxWidth, 876 bidiFlags, jmeasuredWidth, tbd); 877 env->ReleaseCharArrayElements(jtext, const_cast<jchar*>(text), 878 JNI_ABORT); 879 return count; 880 } 881 882 static jint breakTextS(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jstring jtext, 883 jboolean forwards, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { 884 NPE_CHECK_RETURN_ZERO(env, jtext); 885 886 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 887 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 888 889 Paint::TextBufferDirection tbd = forwards ? 890 Paint::kForward_TextBufferDirection : 891 Paint::kBackward_TextBufferDirection; 892 893 int count = env->GetStringLength(jtext); 894 const jchar* text = env->GetStringChars(jtext, NULL); 895 count = breakText(env, *paint, typeface, text, count, maxWidth, bidiFlags, jmeasuredWidth, tbd); 896 env->ReleaseStringChars(jtext, text); 897 return count; 898 } 899 900 static void doTextBounds(JNIEnv* env, const jchar* text, int count, jobject bounds, 901 const Paint& paint, TypefaceImpl* typeface, jint bidiFlags) { 902 SkRect r; 903 SkIRect ir; 904 905 Layout layout; 906 MinikinUtils::doLayout(&layout, &paint, bidiFlags, typeface, text, 0, count, count); 907 MinikinRect rect; 908 layout.getBounds(&rect); 909 r.fLeft = rect.mLeft; 910 r.fTop = rect.mTop; 911 r.fRight = rect.mRight; 912 r.fBottom = rect.mBottom; 913 r.roundOut(&ir); 914 GraphicsJNI::irect_to_jrect(ir, env, bounds); 915 } 916 917 static void getStringBounds(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle, 918 jstring text, jint start, jint end, jint bidiFlags, jobject bounds) { 919 const Paint* paint = reinterpret_cast<Paint*>(paintHandle);; 920 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 921 const jchar* textArray = env->GetStringChars(text, NULL); 922 doTextBounds(env, textArray + start, end - start, bounds, *paint, typeface, bidiFlags); 923 env->ReleaseStringChars(text, textArray); 924 } 925 926 static void getCharArrayBounds(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle, 927 jcharArray text, jint index, jint count, jint bidiFlags, jobject bounds) { 928 const Paint* paint = reinterpret_cast<Paint*>(paintHandle); 929 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 930 const jchar* textArray = env->GetCharArrayElements(text, NULL); 931 doTextBounds(env, textArray + index, count, bounds, *paint, typeface, bidiFlags); 932 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), 933 JNI_ABORT); 934 } 935 936 }; 937 938 static JNINativeMethod methods[] = { 939 {"finalizer", "(J)V", (void*) PaintGlue::finalizer}, 940 {"native_init","()J", (void*) PaintGlue::init}, 941 {"native_initWithPaint","(J)J", (void*) PaintGlue::initWithPaint}, 942 943 {"native_reset","!(J)V", (void*) PaintGlue::reset}, 944 {"native_set","!(JJ)V", (void*) PaintGlue::assign}, 945 {"getFlags","!()I", (void*) PaintGlue::getFlags}, 946 {"setFlags","!(I)V", (void*) PaintGlue::setFlags}, 947 {"getHinting","!()I", (void*) PaintGlue::getHinting}, 948 {"setHinting","!(I)V", (void*) PaintGlue::setHinting}, 949 {"setAntiAlias","!(Z)V", (void*) PaintGlue::setAntiAlias}, 950 {"setSubpixelText","!(Z)V", (void*) PaintGlue::setSubpixelText}, 951 {"setLinearText","!(Z)V", (void*) PaintGlue::setLinearText}, 952 {"setUnderlineText","!(Z)V", (void*) PaintGlue::setUnderlineText}, 953 {"setStrikeThruText","!(Z)V", (void*) PaintGlue::setStrikeThruText}, 954 {"setFakeBoldText","!(Z)V", (void*) PaintGlue::setFakeBoldText}, 955 {"setFilterBitmap","!(Z)V", (void*) PaintGlue::setFilterBitmap}, 956 {"setDither","!(Z)V", (void*) PaintGlue::setDither}, 957 {"native_getStyle","!(J)I", (void*) PaintGlue::getStyle}, 958 {"native_setStyle","!(JI)V", (void*) PaintGlue::setStyle}, 959 {"getColor","!()I", (void*) PaintGlue::getColor}, 960 {"setColor","!(I)V", (void*) PaintGlue::setColor}, 961 {"getAlpha","!()I", (void*) PaintGlue::getAlpha}, 962 {"setAlpha","!(I)V", (void*) PaintGlue::setAlpha}, 963 {"getStrokeWidth","!()F", (void*) PaintGlue::getStrokeWidth}, 964 {"setStrokeWidth","!(F)V", (void*) PaintGlue::setStrokeWidth}, 965 {"getStrokeMiter","!()F", (void*) PaintGlue::getStrokeMiter}, 966 {"setStrokeMiter","!(F)V", (void*) PaintGlue::setStrokeMiter}, 967 {"native_getStrokeCap","!(J)I", (void*) PaintGlue::getStrokeCap}, 968 {"native_setStrokeCap","!(JI)V", (void*) PaintGlue::setStrokeCap}, 969 {"native_getStrokeJoin","!(J)I", (void*) PaintGlue::getStrokeJoin}, 970 {"native_setStrokeJoin","!(JI)V", (void*) PaintGlue::setStrokeJoin}, 971 {"native_getFillPath","!(JJJ)Z", (void*) PaintGlue::getFillPath}, 972 {"native_setShader","!(JJ)J", (void*) PaintGlue::setShader}, 973 {"native_setColorFilter","!(JJ)J", (void*) PaintGlue::setColorFilter}, 974 {"native_setXfermode","!(JJ)J", (void*) PaintGlue::setXfermode}, 975 {"native_setPathEffect","!(JJ)J", (void*) PaintGlue::setPathEffect}, 976 {"native_setMaskFilter","!(JJ)J", (void*) PaintGlue::setMaskFilter}, 977 {"native_setTypeface","!(JJ)J", (void*) PaintGlue::setTypeface}, 978 {"native_setRasterizer","!(JJ)J", (void*) PaintGlue::setRasterizer}, 979 {"native_getTextAlign","!(J)I", (void*) PaintGlue::getTextAlign}, 980 {"native_setTextAlign","!(JI)V", (void*) PaintGlue::setTextAlign}, 981 {"native_setTextLocale","!(JLjava/lang/String;)V", (void*) PaintGlue::setTextLocale}, 982 {"isElegantTextHeight","!()Z", (void*) PaintGlue::isElegantTextHeight}, 983 {"setElegantTextHeight","!(Z)V", (void*) PaintGlue::setElegantTextHeight}, 984 {"getTextSize","!()F", (void*) PaintGlue::getTextSize}, 985 {"setTextSize","!(F)V", (void*) PaintGlue::setTextSize}, 986 {"getTextScaleX","!()F", (void*) PaintGlue::getTextScaleX}, 987 {"setTextScaleX","!(F)V", (void*) PaintGlue::setTextScaleX}, 988 {"getTextSkewX","!()F", (void*) PaintGlue::getTextSkewX}, 989 {"setTextSkewX","!(F)V", (void*) PaintGlue::setTextSkewX}, 990 {"native_getLetterSpacing","!(J)F", (void*) PaintGlue::getLetterSpacing}, 991 {"native_setLetterSpacing","!(JF)V", (void*) PaintGlue::setLetterSpacing}, 992 {"native_setFontFeatureSettings","(JLjava/lang/String;)V", (void*) PaintGlue::setFontFeatureSettings}, 993 {"ascent","!()F", (void*) PaintGlue::ascent}, 994 {"descent","!()F", (void*) PaintGlue::descent}, 995 996 {"getFontMetrics", "(Landroid/graphics/Paint$FontMetrics;)F", (void*)PaintGlue::getFontMetrics}, 997 {"getFontMetricsInt", "(Landroid/graphics/Paint$FontMetricsInt;)I", (void*)PaintGlue::getFontMetricsInt}, 998 {"native_measureText","([CIII)F", (void*) PaintGlue::measureText_CIII}, 999 {"native_measureText","(Ljava/lang/String;I)F", (void*) PaintGlue::measureText_StringI}, 1000 {"native_measureText","(Ljava/lang/String;III)F", (void*) PaintGlue::measureText_StringIII}, 1001 {"native_breakText","(JJ[CIIFI[F)I", (void*) PaintGlue::breakTextC}, 1002 {"native_breakText","(JJLjava/lang/String;ZFI[F)I", (void*) PaintGlue::breakTextS}, 1003 {"native_getTextWidths","(JJ[CIII[F)I", (void*) PaintGlue::getTextWidths___CIII_F}, 1004 {"native_getTextWidths","(JJLjava/lang/String;III[F)I", (void*) PaintGlue::getTextWidths__StringIII_F}, 1005 {"native_getTextRunAdvances","(JJ[CIIIIZ[FI)F", 1006 (void*) PaintGlue::getTextRunAdvances___CIIIIZ_FI}, 1007 {"native_getTextRunAdvances","(JJLjava/lang/String;IIIIZ[FI)F", 1008 (void*) PaintGlue::getTextRunAdvances__StringIIIIZ_FI}, 1009 1010 {"native_getTextRunCursor", "(J[CIIIII)I", (void*) PaintGlue::getTextRunCursor___C}, 1011 {"native_getTextRunCursor", "(JLjava/lang/String;IIIII)I", 1012 (void*) PaintGlue::getTextRunCursor__String}, 1013 {"native_getTextPath","(JJI[CIIFFJ)V", (void*) PaintGlue::getTextPath___C}, 1014 {"native_getTextPath","(JJILjava/lang/String;IIFFJ)V", (void*) PaintGlue::getTextPath__String}, 1015 {"nativeGetStringBounds", "(JJLjava/lang/String;IIILandroid/graphics/Rect;)V", 1016 (void*) PaintGlue::getStringBounds }, 1017 {"nativeGetCharArrayBounds", "(JJ[CIIILandroid/graphics/Rect;)V", 1018 (void*) PaintGlue::getCharArrayBounds }, 1019 1020 {"native_setShadowLayer", "!(JFFFI)V", (void*)PaintGlue::setShadowLayer}, 1021 {"native_hasShadowLayer", "!(J)Z", (void*)PaintGlue::hasShadowLayer} 1022 }; 1023 1024 static jfieldID req_fieldID(jfieldID id) { 1025 SkASSERT(id); 1026 return id; 1027 } 1028 1029 int register_android_graphics_Paint(JNIEnv* env) { 1030 gFontMetrics_class = env->FindClass("android/graphics/Paint$FontMetrics"); 1031 SkASSERT(gFontMetrics_class); 1032 gFontMetrics_class = (jclass)env->NewGlobalRef(gFontMetrics_class); 1033 1034 gFontMetrics_fieldID.top = req_fieldID(env->GetFieldID(gFontMetrics_class, "top", "F")); 1035 gFontMetrics_fieldID.ascent = req_fieldID(env->GetFieldID(gFontMetrics_class, "ascent", "F")); 1036 gFontMetrics_fieldID.descent = req_fieldID(env->GetFieldID(gFontMetrics_class, "descent", "F")); 1037 gFontMetrics_fieldID.bottom = req_fieldID(env->GetFieldID(gFontMetrics_class, "bottom", "F")); 1038 gFontMetrics_fieldID.leading = req_fieldID(env->GetFieldID(gFontMetrics_class, "leading", "F")); 1039 1040 gFontMetricsInt_class = env->FindClass("android/graphics/Paint$FontMetricsInt"); 1041 SkASSERT(gFontMetricsInt_class); 1042 gFontMetricsInt_class = (jclass)env->NewGlobalRef(gFontMetricsInt_class); 1043 1044 gFontMetricsInt_fieldID.top = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "top", "I")); 1045 gFontMetricsInt_fieldID.ascent = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "ascent", "I")); 1046 gFontMetricsInt_fieldID.descent = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "descent", "I")); 1047 gFontMetricsInt_fieldID.bottom = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "bottom", "I")); 1048 gFontMetricsInt_fieldID.leading = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "leading", "I")); 1049 1050 int result = AndroidRuntime::registerNativeMethods(env, "android/graphics/Paint", methods, 1051 sizeof(methods) / sizeof(methods[0])); 1052 return result; 1053 } 1054 1055 } 1056
