Paint.cpp revision dbffd250003e60c0f11ac3ad2b63f91f67962610
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 "core_jni_helpers.h" 25#include <ScopedStringChars.h> 26#include <ScopedUtfChars.h> 27 28#include "SkBlurDrawLooper.h" 29#include "SkColorFilter.h" 30#include "SkMaskFilter.h" 31#include "SkRasterizer.h" 32#include "SkShader.h" 33#include "SkTypeface.h" 34#include "SkXfermode.h" 35#include "unicode/uloc.h" 36#include "unicode/ushape.h" 37#include "utils/Blur.h" 38 39#include <minikin/GraphemeBreak.h> 40#include <minikin/Measurement.h> 41#include "MinikinSkia.h" 42#include "MinikinUtils.h" 43#include "Paint.h" 44#include "TypefaceImpl.h" 45 46#include <vector> 47#include <memory> 48 49// temporary for debugging 50#include <Caches.h> 51#include <utils/Log.h> 52 53namespace android { 54 55struct JMetricsID { 56 jfieldID top; 57 jfieldID ascent; 58 jfieldID descent; 59 jfieldID bottom; 60 jfieldID leading; 61}; 62 63static jclass gFontMetrics_class; 64static JMetricsID gFontMetrics_fieldID; 65 66static jclass gFontMetricsInt_class; 67static JMetricsID gFontMetricsInt_fieldID; 68 69static void defaultSettingsForAndroid(Paint* paint) { 70 // GlyphID encoding is required because we are using Harfbuzz shaping 71 paint->setTextEncoding(Paint::kGlyphID_TextEncoding); 72} 73 74struct LocaleCacheEntry { 75 std::string javaLocale; 76 std::string languageTag; 77}; 78 79static thread_local LocaleCacheEntry sSingleEntryLocaleCache; 80 81namespace PaintGlue { 82 enum MoveOpt { 83 AFTER, AT_OR_AFTER, BEFORE, AT_OR_BEFORE, AT 84 }; 85 86 static void finalizer(JNIEnv* env, jobject clazz, jlong objHandle) { 87 Paint* obj = reinterpret_cast<Paint*>(objHandle); 88 delete obj; 89 } 90 91 static jlong init(JNIEnv* env, jobject) { 92 static_assert(1 << 0 == SkPaint::kAntiAlias_Flag, "paint_flags_mismatch"); 93 static_assert(1 << 2 == SkPaint::kDither_Flag, "paint_flags_mismatch"); 94 static_assert(1 << 3 == SkPaint::kUnderlineText_Flag, "paint_flags_mismatch"); 95 static_assert(1 << 4 == SkPaint::kStrikeThruText_Flag, "paint_flags_mismatch"); 96 static_assert(1 << 5 == SkPaint::kFakeBoldText_Flag, "paint_flags_mismatch"); 97 static_assert(1 << 6 == SkPaint::kLinearText_Flag, "paint_flags_mismatch"); 98 static_assert(1 << 7 == SkPaint::kSubpixelText_Flag, "paint_flags_mismatch"); 99 static_assert(1 << 8 == SkPaint::kDevKernText_Flag, "paint_flags_mismatch"); 100 static_assert(1 << 10 == SkPaint::kEmbeddedBitmapText_Flag, "paint_flags_mismatch"); 101 102 Paint* obj = new Paint(); 103 defaultSettingsForAndroid(obj); 104 return reinterpret_cast<jlong>(obj); 105 } 106 107 static jlong initWithPaint(JNIEnv* env, jobject clazz, jlong paintHandle) { 108 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 109 Paint* obj = new Paint(*paint); 110 return reinterpret_cast<jlong>(obj); 111 } 112 113 static void reset(JNIEnv* env, jobject clazz, jlong objHandle) { 114 Paint* obj = reinterpret_cast<Paint*>(objHandle); 115 obj->reset(); 116 defaultSettingsForAndroid(obj); 117 } 118 119 static void assign(JNIEnv* env, jobject clazz, jlong dstPaintHandle, jlong srcPaintHandle) { 120 Paint* dst = reinterpret_cast<Paint*>(dstPaintHandle); 121 const Paint* src = reinterpret_cast<Paint*>(srcPaintHandle); 122 *dst = *src; 123 } 124 125 // Equivalent to the Java Paint's FILTER_BITMAP_FLAG. 126 static const uint32_t sFilterBitmapFlag = 0x02; 127 128 static jint getFlags(JNIEnv* env, jobject, jlong paintHandle) { 129 Paint* nativePaint = reinterpret_cast<Paint*>(paintHandle); 130 uint32_t result = nativePaint->getFlags(); 131 result &= ~sFilterBitmapFlag; // Filtering no longer stored in this bit. Mask away. 132 if (nativePaint->getFilterQuality() != kNone_SkFilterQuality) { 133 result |= sFilterBitmapFlag; 134 } 135 return static_cast<jint>(result); 136 } 137 138 static void setFlags(JNIEnv* env, jobject, jlong paintHandle, jint flags) { 139 Paint* nativePaint = reinterpret_cast<Paint*>(paintHandle); 140 // Instead of modifying 0x02, change the filter level. 141 nativePaint->setFilterQuality(flags & sFilterBitmapFlag 142 ? kLow_SkFilterQuality 143 : kNone_SkFilterQuality); 144 // Don't pass through filter flag, which is no longer stored in paint's flags. 145 flags &= ~sFilterBitmapFlag; 146 // Use the existing value for 0x02. 147 const uint32_t existing0x02Flag = nativePaint->getFlags() & sFilterBitmapFlag; 148 flags |= existing0x02Flag; 149 nativePaint->setFlags(flags); 150 } 151 152 static jint getHinting(JNIEnv* env, jobject, jlong paintHandle) { 153 return reinterpret_cast<Paint*>(paintHandle)->getHinting() 154 == Paint::kNo_Hinting ? 0 : 1; 155 } 156 157 static void setHinting(JNIEnv* env, jobject, jlong paintHandle, jint mode) { 158 reinterpret_cast<Paint*>(paintHandle)->setHinting( 159 mode == 0 ? Paint::kNo_Hinting : Paint::kNormal_Hinting); 160 } 161 162 static void setAntiAlias(JNIEnv* env, jobject, jlong paintHandle, jboolean aa) { 163 reinterpret_cast<Paint*>(paintHandle)->setAntiAlias(aa); 164 } 165 166 static void setLinearText(JNIEnv* env, jobject, jlong paintHandle, jboolean linearText) { 167 reinterpret_cast<Paint*>(paintHandle)->setLinearText(linearText); 168 } 169 170 static void setSubpixelText(JNIEnv* env, jobject, jlong paintHandle, jboolean subpixelText) { 171 reinterpret_cast<Paint*>(paintHandle)->setSubpixelText(subpixelText); 172 } 173 174 static void setUnderlineText(JNIEnv* env, jobject, jlong paintHandle, jboolean underlineText) { 175 reinterpret_cast<Paint*>(paintHandle)->setUnderlineText(underlineText); 176 } 177 178 static void setStrikeThruText(JNIEnv* env, jobject, jlong paintHandle, jboolean strikeThruText) { 179 reinterpret_cast<Paint*>(paintHandle)->setStrikeThruText(strikeThruText); 180 } 181 182 static void setFakeBoldText(JNIEnv* env, jobject, jlong paintHandle, jboolean fakeBoldText) { 183 reinterpret_cast<Paint*>(paintHandle)->setFakeBoldText(fakeBoldText); 184 } 185 186 static void setFilterBitmap(JNIEnv* env, jobject, jlong paintHandle, jboolean filterBitmap) { 187 reinterpret_cast<Paint*>(paintHandle)->setFilterQuality( 188 filterBitmap ? kLow_SkFilterQuality : kNone_SkFilterQuality); 189 } 190 191 static void setDither(JNIEnv* env, jobject, jlong paintHandle, jboolean dither) { 192 reinterpret_cast<Paint*>(paintHandle)->setDither(dither); 193 } 194 195 static jint getStyle(JNIEnv* env, jobject clazz,jlong objHandle) { 196 Paint* obj = reinterpret_cast<Paint*>(objHandle); 197 return static_cast<jint>(obj->getStyle()); 198 } 199 200 static void setStyle(JNIEnv* env, jobject clazz, jlong objHandle, jint styleHandle) { 201 Paint* obj = reinterpret_cast<Paint*>(objHandle); 202 Paint::Style style = static_cast<Paint::Style>(styleHandle); 203 obj->setStyle(style); 204 } 205 206 static jint getColor(JNIEnv* env, jobject, jlong paintHandle) { 207 int color; 208 color = reinterpret_cast<Paint*>(paintHandle)->getColor(); 209 return static_cast<jint>(color); 210 } 211 212 static jint getAlpha(JNIEnv* env, jobject, jlong paintHandle) { 213 int alpha; 214 alpha = reinterpret_cast<Paint*>(paintHandle)->getAlpha(); 215 return static_cast<jint>(alpha); 216 } 217 218 static void setColor(JNIEnv* env, jobject, jlong paintHandle, jint color) { 219 reinterpret_cast<Paint*>(paintHandle)->setColor(color); 220 } 221 222 static void setAlpha(JNIEnv* env, jobject, jlong paintHandle, jint a) { 223 reinterpret_cast<Paint*>(paintHandle)->setAlpha(a); 224 } 225 226 static jfloat getStrokeWidth(JNIEnv* env, jobject, jlong paintHandle) { 227 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeWidth()); 228 } 229 230 static void setStrokeWidth(JNIEnv* env, jobject, jlong paintHandle, jfloat width) { 231 reinterpret_cast<Paint*>(paintHandle)->setStrokeWidth(width); 232 } 233 234 static jfloat getStrokeMiter(JNIEnv* env, jobject, jlong paintHandle) { 235 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeMiter()); 236 } 237 238 static void setStrokeMiter(JNIEnv* env, jobject, jlong paintHandle, jfloat miter) { 239 reinterpret_cast<Paint*>(paintHandle)->setStrokeMiter(miter); 240 } 241 242 static jint getStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle) { 243 Paint* obj = reinterpret_cast<Paint*>(objHandle); 244 return static_cast<jint>(obj->getStrokeCap()); 245 } 246 247 static void setStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle, jint capHandle) { 248 Paint* obj = reinterpret_cast<Paint*>(objHandle); 249 Paint::Cap cap = static_cast<Paint::Cap>(capHandle); 250 obj->setStrokeCap(cap); 251 } 252 253 static jint getStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle) { 254 Paint* obj = reinterpret_cast<Paint*>(objHandle); 255 return static_cast<jint>(obj->getStrokeJoin()); 256 } 257 258 static void setStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle, jint joinHandle) { 259 Paint* obj = reinterpret_cast<Paint*>(objHandle); 260 Paint::Join join = (Paint::Join) joinHandle; 261 obj->setStrokeJoin(join); 262 } 263 264 static jboolean getFillPath(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle, jlong dstHandle) { 265 Paint* obj = reinterpret_cast<Paint*>(objHandle); 266 SkPath* src = reinterpret_cast<SkPath*>(srcHandle); 267 SkPath* dst = reinterpret_cast<SkPath*>(dstHandle); 268 return obj->getFillPath(*src, dst) ? JNI_TRUE : JNI_FALSE; 269 } 270 271 static jlong setShader(JNIEnv* env, jobject clazz, jlong objHandle, jlong shaderHandle) { 272 Paint* obj = reinterpret_cast<Paint*>(objHandle); 273 SkShader* shader = reinterpret_cast<SkShader*>(shaderHandle); 274 return reinterpret_cast<jlong>(obj->setShader(shader)); 275 } 276 277 static jlong setColorFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong filterHandle) { 278 Paint* obj = reinterpret_cast<Paint *>(objHandle); 279 SkColorFilter* filter = reinterpret_cast<SkColorFilter *>(filterHandle); 280 return reinterpret_cast<jlong>(obj->setColorFilter(filter)); 281 } 282 283 static jlong setXfermode(JNIEnv* env, jobject clazz, jlong objHandle, jlong xfermodeHandle) { 284 Paint* obj = reinterpret_cast<Paint*>(objHandle); 285 SkXfermode* xfermode = reinterpret_cast<SkXfermode*>(xfermodeHandle); 286 return reinterpret_cast<jlong>(obj->setXfermode(xfermode)); 287 } 288 289 static jlong setPathEffect(JNIEnv* env, jobject clazz, jlong objHandle, jlong effectHandle) { 290 Paint* obj = reinterpret_cast<Paint*>(objHandle); 291 SkPathEffect* effect = reinterpret_cast<SkPathEffect*>(effectHandle); 292 return reinterpret_cast<jlong>(obj->setPathEffect(effect)); 293 } 294 295 static jlong setMaskFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong maskfilterHandle) { 296 Paint* obj = reinterpret_cast<Paint*>(objHandle); 297 SkMaskFilter* maskfilter = reinterpret_cast<SkMaskFilter*>(maskfilterHandle); 298 return reinterpret_cast<jlong>(obj->setMaskFilter(maskfilter)); 299 } 300 301 static jlong setTypeface(JNIEnv* env, jobject clazz, jlong objHandle, jlong typefaceHandle) { 302 // TODO: in Paint refactoring, set typeface on android Paint, not Paint 303 return NULL; 304 } 305 306 static jlong setRasterizer(JNIEnv* env, jobject clazz, jlong objHandle, jlong rasterizerHandle) { 307 Paint* obj = reinterpret_cast<Paint*>(objHandle); 308 SkAutoTUnref<SkRasterizer> rasterizer(GraphicsJNI::refNativeRasterizer(rasterizerHandle)); 309 return reinterpret_cast<jlong>(obj->setRasterizer(rasterizer)); 310 } 311 312 static jint getTextAlign(JNIEnv* env, jobject clazz, jlong objHandle) { 313 Paint* obj = reinterpret_cast<Paint*>(objHandle); 314 return static_cast<jint>(obj->getTextAlign()); 315 } 316 317 static void setTextAlign(JNIEnv* env, jobject clazz, jlong objHandle, jint alignHandle) { 318 Paint* obj = reinterpret_cast<Paint*>(objHandle); 319 Paint::Align align = static_cast<Paint::Align>(alignHandle); 320 obj->setTextAlign(align); 321 } 322 323 // generate bcp47 identifier for the supplied locale 324 static void toLanguageTag(char* output, size_t outSize, 325 const char* locale) { 326 if (output == NULL || outSize <= 0) { 327 return; 328 } 329 if (locale == NULL) { 330 output[0] = '\0'; 331 return; 332 } 333 char canonicalChars[ULOC_FULLNAME_CAPACITY]; 334 UErrorCode uErr = U_ZERO_ERROR; 335 uloc_canonicalize(locale, canonicalChars, ULOC_FULLNAME_CAPACITY, 336 &uErr); 337 if (U_SUCCESS(uErr)) { 338 char likelyChars[ULOC_FULLNAME_CAPACITY]; 339 uErr = U_ZERO_ERROR; 340 uloc_addLikelySubtags(canonicalChars, likelyChars, 341 ULOC_FULLNAME_CAPACITY, &uErr); 342 if (U_SUCCESS(uErr)) { 343 uErr = U_ZERO_ERROR; 344 uloc_toLanguageTag(likelyChars, output, outSize, FALSE, &uErr); 345 if (U_SUCCESS(uErr)) { 346 return; 347 } else { 348 ALOGD("uloc_toLanguageTag(\"%s\") failed: %s", likelyChars, 349 u_errorName(uErr)); 350 } 351 } else { 352 ALOGD("uloc_addLikelySubtags(\"%s\") failed: %s", 353 canonicalChars, u_errorName(uErr)); 354 } 355 } else { 356 ALOGD("uloc_canonicalize(\"%s\") failed: %s", locale, 357 u_errorName(uErr)); 358 } 359 // unable to build a proper language identifier 360 output[0] = '\0'; 361 } 362 363 static void setTextLocale(JNIEnv* env, jobject clazz, jlong objHandle, jstring locale) { 364 Paint* obj = reinterpret_cast<Paint*>(objHandle); 365 ScopedUtfChars localeChars(env, locale); 366 if (sSingleEntryLocaleCache.javaLocale != localeChars.c_str()) { 367 sSingleEntryLocaleCache.javaLocale = localeChars.c_str(); 368 char langTag[ULOC_FULLNAME_CAPACITY]; 369 toLanguageTag(langTag, ULOC_FULLNAME_CAPACITY, localeChars.c_str()); 370 sSingleEntryLocaleCache.languageTag = langTag; 371 } 372 373 obj->setTextLocale(sSingleEntryLocaleCache.languageTag); 374 } 375 376 static jboolean isElegantTextHeight(JNIEnv* env, jobject, jlong paintHandle) { 377 Paint* obj = reinterpret_cast<Paint*>(paintHandle); 378 return obj->getFontVariant() == VARIANT_ELEGANT; 379 } 380 381 static void setElegantTextHeight(JNIEnv* env, jobject, jlong paintHandle, jboolean aa) { 382 Paint* obj = reinterpret_cast<Paint*>(paintHandle); 383 obj->setFontVariant(aa ? VARIANT_ELEGANT : VARIANT_DEFAULT); 384 } 385 386 static jfloat getTextSize(JNIEnv* env, jobject, jlong paintHandle) { 387 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getTextSize()); 388 } 389 390 static void setTextSize(JNIEnv* env, jobject, jlong paintHandle, jfloat textSize) { 391 reinterpret_cast<Paint*>(paintHandle)->setTextSize(textSize); 392 } 393 394 static jfloat getTextScaleX(JNIEnv* env, jobject, jlong paintHandle) { 395 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getTextScaleX()); 396 } 397 398 static void setTextScaleX(JNIEnv* env, jobject, jlong paintHandle, jfloat scaleX) { 399 reinterpret_cast<Paint*>(paintHandle)->setTextScaleX(scaleX); 400 } 401 402 static jfloat getTextSkewX(JNIEnv* env, jobject, jlong paintHandle) { 403 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getTextSkewX()); 404 } 405 406 static void setTextSkewX(JNIEnv* env, jobject, jlong paintHandle, jfloat skewX) { 407 reinterpret_cast<Paint*>(paintHandle)->setTextSkewX(skewX); 408 } 409 410 static jfloat getLetterSpacing(JNIEnv* env, jobject clazz, jlong paintHandle) { 411 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 412 return paint->getLetterSpacing(); 413 } 414 415 static void setLetterSpacing(JNIEnv* env, jobject clazz, jlong paintHandle, jfloat letterSpacing) { 416 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 417 paint->setLetterSpacing(letterSpacing); 418 } 419 420 static void setFontFeatureSettings(JNIEnv* env, jobject clazz, jlong paintHandle, jstring settings) { 421 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 422 if (!settings) { 423 paint->setFontFeatureSettings(std::string()); 424 } else { 425 ScopedUtfChars settingsChars(env, settings); 426 paint->setFontFeatureSettings(std::string(settingsChars.c_str(), settingsChars.size())); 427 } 428 } 429 430 static jint getHyphenEdit(JNIEnv* env, jobject clazz, jlong paintHandle, jint hyphen) { 431 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 432 return paint->getHyphenEdit(); 433 } 434 435 static void setHyphenEdit(JNIEnv* env, jobject clazz, jlong paintHandle, jint hyphen) { 436 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 437 paint->setHyphenEdit((uint32_t)hyphen); 438 } 439 440 static SkScalar getMetricsInternal(jlong paintHandle, jlong typefaceHandle, 441 Paint::FontMetrics *metrics) { 442 const int kElegantTop = 2500; 443 const int kElegantBottom = -1000; 444 const int kElegantAscent = 1900; 445 const int kElegantDescent = -500; 446 const int kElegantLeading = 0; 447 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 448 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 449 typeface = TypefaceImpl_resolveDefault(typeface); 450 FakedFont baseFont = typeface->fFontCollection->baseFontFaked(typeface->fStyle); 451 float saveSkewX = paint->getTextSkewX(); 452 bool savefakeBold = paint->isFakeBoldText(); 453 MinikinFontSkia::populateSkPaint(paint, baseFont.font, baseFont.fakery); 454 SkScalar spacing = paint->getFontMetrics(metrics); 455 // The populateSkPaint call may have changed fake bold / text skew 456 // because we want to measure with those effects applied, so now 457 // restore the original settings. 458 paint->setTextSkewX(saveSkewX); 459 paint->setFakeBoldText(savefakeBold); 460 if (paint->getFontVariant() == VARIANT_ELEGANT) { 461 SkScalar size = paint->getTextSize(); 462 metrics->fTop = -size * kElegantTop / 2048; 463 metrics->fBottom = -size * kElegantBottom / 2048; 464 metrics->fAscent = -size * kElegantAscent / 2048; 465 metrics->fDescent = -size * kElegantDescent / 2048; 466 metrics->fLeading = size * kElegantLeading / 2048; 467 spacing = metrics->fDescent - metrics->fAscent + metrics->fLeading; 468 } 469 return spacing; 470 } 471 472 static jfloat ascent(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle) { 473 Paint::FontMetrics metrics; 474 getMetricsInternal(paintHandle, typefaceHandle, &metrics); 475 return SkScalarToFloat(metrics.fAscent); 476 } 477 478 static jfloat descent(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle) { 479 Paint::FontMetrics metrics; 480 getMetricsInternal(paintHandle, typefaceHandle, &metrics); 481 return SkScalarToFloat(metrics.fDescent); 482 } 483 484 static jfloat getFontMetrics(JNIEnv* env, jobject, jlong paintHandle, 485 jlong typefaceHandle, jobject metricsObj) { 486 Paint::FontMetrics metrics; 487 SkScalar spacing = getMetricsInternal(paintHandle, typefaceHandle, &metrics); 488 489 if (metricsObj) { 490 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetrics_class)); 491 env->SetFloatField(metricsObj, gFontMetrics_fieldID.top, SkScalarToFloat(metrics.fTop)); 492 env->SetFloatField(metricsObj, gFontMetrics_fieldID.ascent, SkScalarToFloat(metrics.fAscent)); 493 env->SetFloatField(metricsObj, gFontMetrics_fieldID.descent, SkScalarToFloat(metrics.fDescent)); 494 env->SetFloatField(metricsObj, gFontMetrics_fieldID.bottom, SkScalarToFloat(metrics.fBottom)); 495 env->SetFloatField(metricsObj, gFontMetrics_fieldID.leading, SkScalarToFloat(metrics.fLeading)); 496 } 497 return SkScalarToFloat(spacing); 498 } 499 500 static jint getFontMetricsInt(JNIEnv* env, jobject, jlong paintHandle, 501 jlong typefaceHandle, jobject metricsObj) { 502 Paint::FontMetrics metrics; 503 504 getMetricsInternal(paintHandle, typefaceHandle, &metrics); 505 int ascent = SkScalarRoundToInt(metrics.fAscent); 506 int descent = SkScalarRoundToInt(metrics.fDescent); 507 int leading = SkScalarRoundToInt(metrics.fLeading); 508 509 if (metricsObj) { 510 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetricsInt_class)); 511 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.top, SkScalarFloorToInt(metrics.fTop)); 512 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.ascent, ascent); 513 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.descent, descent); 514 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.bottom, SkScalarCeilToInt(metrics.fBottom)); 515 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.leading, leading); 516 } 517 return descent - ascent + leading; 518 } 519 520 static jfloat doTextAdvances(JNIEnv *env, Paint *paint, TypefaceImpl* typeface, 521 const jchar *text, jint start, jint count, jint contextCount, jint bidiFlags, 522 jfloatArray advances, jint advancesIndex) { 523 NPE_CHECK_RETURN_ZERO(env, text); 524 525 if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) { 526 doThrowAIOOBE(env); 527 return 0; 528 } 529 if (count == 0) { 530 return 0; 531 } 532 if (advances) { 533 size_t advancesLength = env->GetArrayLength(advances); 534 if ((size_t)(count + advancesIndex) > advancesLength) { 535 doThrowAIOOBE(env); 536 return 0; 537 } 538 } 539 540 Layout layout; 541 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, start, count, 542 contextCount); 543 if (advances != NULL) { 544 std::unique_ptr<jfloat> advancesArray(new jfloat[count]); 545 layout.getAdvances(advancesArray.get()); 546 env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray.get()); 547 } 548 return layout.getAdvance(); 549 } 550 551 static jfloat getTextAdvances___CIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle, 552 jlong typefaceHandle, 553 jcharArray text, jint index, jint count, jint contextIndex, jint contextCount, 554 jint bidiFlags, jfloatArray advances, jint advancesIndex) { 555 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 556 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 557 jchar* textArray = env->GetCharArrayElements(text, NULL); 558 jfloat result = doTextAdvances(env, paint, typeface, textArray + contextIndex, 559 index - contextIndex, count, contextCount, bidiFlags, advances, advancesIndex); 560 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 561 return result; 562 } 563 564 static jfloat getTextAdvances__StringIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle, 565 jlong typefaceHandle, 566 jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint bidiFlags, 567 jfloatArray advances, jint advancesIndex) { 568 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 569 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 570 const jchar* textArray = env->GetStringChars(text, NULL); 571 jfloat result = doTextAdvances(env, paint, typeface, textArray + contextStart, 572 start - contextStart, end - start, contextEnd - contextStart, bidiFlags, 573 advances, advancesIndex); 574 env->ReleaseStringChars(text, textArray); 575 return result; 576 } 577 578 static jint doTextRunCursor(JNIEnv *env, Paint* paint, const jchar *text, jint start, 579 jint count, jint flags, jint offset, jint opt) { 580 GraphemeBreak::MoveOpt moveOpt = GraphemeBreak::MoveOpt(opt); 581 size_t result = GraphemeBreak::getTextRunCursor(text, start, count, offset, moveOpt); 582 return static_cast<jint>(result); 583 } 584 585 static jint getTextRunCursor___C(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray text, 586 jint contextStart, jint contextCount, jint dir, jint offset, jint cursorOpt) { 587 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 588 jchar* textArray = env->GetCharArrayElements(text, NULL); 589 jint result = doTextRunCursor(env, paint, textArray, contextStart, contextCount, dir, 590 offset, cursorOpt); 591 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 592 return result; 593 } 594 595 static jint getTextRunCursor__String(JNIEnv* env, jobject clazz, jlong paintHandle, jstring text, 596 jint contextStart, jint contextEnd, jint dir, jint offset, jint cursorOpt) { 597 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 598 const jchar* textArray = env->GetStringChars(text, NULL); 599 jint result = doTextRunCursor(env, paint, textArray, contextStart, 600 contextEnd - contextStart, dir, offset, cursorOpt); 601 env->ReleaseStringChars(text, textArray); 602 return result; 603 } 604 605 class GetTextFunctor { 606 public: 607 GetTextFunctor(const Layout& layout, SkPath* path, jfloat x, jfloat y, Paint* paint, 608 uint16_t* glyphs, SkPoint* pos) 609 : layout(layout), path(path), x(x), y(y), paint(paint), glyphs(glyphs), pos(pos) { 610 } 611 612 void operator()(size_t start, size_t end) { 613 for (size_t i = start; i < end; i++) { 614 glyphs[i] = layout.getGlyphId(i); 615 pos[i].fX = x + layout.getX(i); 616 pos[i].fY = y + layout.getY(i); 617 } 618 if (start == 0) { 619 paint->getPosTextPath(glyphs + start, (end - start) << 1, pos + start, path); 620 } else { 621 paint->getPosTextPath(glyphs + start, (end - start) << 1, pos + start, &tmpPath); 622 path->addPath(tmpPath); 623 } 624 } 625 private: 626 const Layout& layout; 627 SkPath* path; 628 jfloat x; 629 jfloat y; 630 Paint* paint; 631 uint16_t* glyphs; 632 SkPoint* pos; 633 SkPath tmpPath; 634 }; 635 636 static void getTextPath(JNIEnv* env, Paint* paint, TypefaceImpl* typeface, const jchar* text, 637 jint count, jint bidiFlags, jfloat x, jfloat y, SkPath* path) { 638 Layout layout; 639 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, 0, count, count); 640 size_t nGlyphs = layout.nGlyphs(); 641 uint16_t* glyphs = new uint16_t[nGlyphs]; 642 SkPoint* pos = new SkPoint[nGlyphs]; 643 644 x += MinikinUtils::xOffsetForTextAlign(paint, layout); 645 Paint::Align align = paint->getTextAlign(); 646 paint->setTextAlign(Paint::kLeft_Align); 647 paint->setTextEncoding(Paint::kGlyphID_TextEncoding); 648 GetTextFunctor f(layout, path, x, y, paint, glyphs, pos); 649 MinikinUtils::forFontRun(layout, paint, f); 650 paint->setTextAlign(align); 651 delete[] glyphs; 652 delete[] pos; 653 } 654 655 static void getTextPath___C(JNIEnv* env, jobject clazz, jlong paintHandle, 656 jlong typefaceHandle, jint bidiFlags, 657 jcharArray text, jint index, jint count, jfloat x, jfloat y, jlong pathHandle) { 658 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 659 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 660 SkPath* path = reinterpret_cast<SkPath*>(pathHandle); 661 const jchar* textArray = env->GetCharArrayElements(text, NULL); 662 getTextPath(env, paint, typeface, textArray + index, count, bidiFlags, x, y, path); 663 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); 664 } 665 666 static void getTextPath__String(JNIEnv* env, jobject clazz, jlong paintHandle, 667 jlong typefaceHandle, jint bidiFlags, 668 jstring text, jint start, jint end, jfloat x, jfloat y, jlong pathHandle) { 669 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 670 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 671 SkPath* path = reinterpret_cast<SkPath*>(pathHandle); 672 const jchar* textArray = env->GetStringChars(text, NULL); 673 getTextPath(env, paint, typeface, textArray + start, end - start, bidiFlags, x, y, path); 674 env->ReleaseStringChars(text, textArray); 675 } 676 677 static void setShadowLayer(JNIEnv* env, jobject clazz, jlong paintHandle, jfloat radius, 678 jfloat dx, jfloat dy, jint color) { 679 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 680 if (radius <= 0) { 681 paint->setLooper(NULL); 682 } 683 else { 684 SkScalar sigma = android::uirenderer::Blur::convertRadiusToSigma(radius); 685 paint->setLooper(SkBlurDrawLooper::Create((SkColor)color, sigma, dx, dy))->unref(); 686 } 687 } 688 689 static jboolean hasShadowLayer(JNIEnv* env, jobject clazz, jlong paintHandle) { 690 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 691 return paint->getLooper() && paint->getLooper()->asABlurShadow(NULL); 692 } 693 694 static int breakText(JNIEnv* env, const Paint& paint, TypefaceImpl* typeface, const jchar text[], 695 int count, float maxWidth, jint bidiFlags, jfloatArray jmeasured, 696 const bool forwardScan) { 697 size_t measuredCount = 0; 698 float measured = 0; 699 700 Layout layout; 701 MinikinUtils::doLayout(&layout, &paint, bidiFlags, typeface, text, 0, count, count); 702 float* advances = new float[count]; 703 layout.getAdvances(advances); 704 705 for (int i = 0; i < count; i++) { 706 // traverse in the given direction 707 int index = forwardScan ? i : (count - i - 1); 708 float width = advances[index]; 709 if (measured + width > maxWidth) { 710 break; 711 } 712 // properly handle clusters when scanning backwards 713 if (forwardScan || width != 0.0f) { 714 measuredCount = i + 1; 715 } 716 measured += width; 717 } 718 delete[] advances; 719 720 if (jmeasured && env->GetArrayLength(jmeasured) > 0) { 721 AutoJavaFloatArray autoMeasured(env, jmeasured, 1); 722 jfloat* array = autoMeasured.ptr(); 723 array[0] = measured; 724 } 725 return measuredCount; 726 } 727 728 static jint breakTextC(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jcharArray jtext, 729 jint index, jint count, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { 730 NPE_CHECK_RETURN_ZERO(env, jtext); 731 732 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 733 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 734 735 bool forwardTextDirection; 736 if (count < 0) { 737 forwardTextDirection = false; 738 count = -count; 739 } 740 else { 741 forwardTextDirection = true; 742 } 743 744 if ((index < 0) || (index + count > env->GetArrayLength(jtext))) { 745 doThrowAIOOBE(env); 746 return 0; 747 } 748 749 const jchar* text = env->GetCharArrayElements(jtext, NULL); 750 count = breakText(env, *paint, typeface, text + index, count, maxWidth, 751 bidiFlags, jmeasuredWidth, forwardTextDirection); 752 env->ReleaseCharArrayElements(jtext, const_cast<jchar*>(text), 753 JNI_ABORT); 754 return count; 755 } 756 757 static jint breakTextS(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jstring jtext, 758 jboolean forwards, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { 759 NPE_CHECK_RETURN_ZERO(env, jtext); 760 761 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 762 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 763 764 int count = env->GetStringLength(jtext); 765 const jchar* text = env->GetStringChars(jtext, NULL); 766 count = breakText(env, *paint, typeface, text, count, maxWidth, bidiFlags, jmeasuredWidth, forwards); 767 env->ReleaseStringChars(jtext, text); 768 return count; 769 } 770 771 static void doTextBounds(JNIEnv* env, const jchar* text, int count, jobject bounds, 772 const Paint& paint, TypefaceImpl* typeface, jint bidiFlags) { 773 SkRect r; 774 SkIRect ir; 775 776 Layout layout; 777 MinikinUtils::doLayout(&layout, &paint, bidiFlags, typeface, text, 0, count, count); 778 MinikinRect rect; 779 layout.getBounds(&rect); 780 r.fLeft = rect.mLeft; 781 r.fTop = rect.mTop; 782 r.fRight = rect.mRight; 783 r.fBottom = rect.mBottom; 784 r.roundOut(&ir); 785 GraphicsJNI::irect_to_jrect(ir, env, bounds); 786 } 787 788 static void getStringBounds(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle, 789 jstring text, jint start, jint end, jint bidiFlags, jobject bounds) { 790 const Paint* paint = reinterpret_cast<Paint*>(paintHandle); 791 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 792 const jchar* textArray = env->GetStringChars(text, NULL); 793 doTextBounds(env, textArray + start, end - start, bounds, *paint, typeface, bidiFlags); 794 env->ReleaseStringChars(text, textArray); 795 } 796 797 static void getCharArrayBounds(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle, 798 jcharArray text, jint index, jint count, jint bidiFlags, jobject bounds) { 799 const Paint* paint = reinterpret_cast<Paint*>(paintHandle); 800 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 801 const jchar* textArray = env->GetCharArrayElements(text, NULL); 802 doTextBounds(env, textArray + index, count, bounds, *paint, typeface, bidiFlags); 803 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), 804 JNI_ABORT); 805 } 806 807 static jboolean layoutContainsNotdef(const Layout& layout) { 808 for (size_t i = 0; i < layout.nGlyphs(); i++) { 809 if (layout.getGlyphId(i) == 0) { 810 return true; 811 } 812 } 813 return false; 814 } 815 816 static jboolean hasGlyphVariation(const Paint* paint, TypefaceImpl* typeface, jint bidiFlags, 817 const jchar* chars, size_t size) { 818 // TODO: query font for whether character has variation selector; requires a corresponding 819 // function in Minikin. 820 return false; 821 } 822 823 static jboolean hasGlyph(JNIEnv *env, jclass, jlong paintHandle, jlong typefaceHandle, 824 jint bidiFlags, jstring string) { 825 const Paint* paint = reinterpret_cast<Paint*>(paintHandle); 826 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 827 ScopedStringChars str(env, string); 828 829 /* start by rejecting variation selectors (not supported yet) */ 830 size_t nChars = 0; 831 for (size_t i = 0; i < str.size(); i++) { 832 jchar c = str[i]; 833 if (0xDC00 <= c && c <= 0xDFFF) { 834 // invalid UTF-16, unpaired trailing surrogate 835 return false; 836 } else if (0xD800 <= c && c <= 0xDBFF) { 837 if (i + 1 == str.size()) { 838 // invalid UTF-16, unpaired leading surrogate at end of string 839 return false; 840 } 841 i++; 842 jchar c2 = str[i]; 843 if (!(0xDC00 <= c2 && c2 <= 0xDFFF)) { 844 // invalid UTF-16, unpaired leading surrogate 845 return false; 846 } 847 // UTF-16 encoding of range U+E0100..U+E01EF is DB40 DD00 .. DB40 DDEF 848 if (c == 0xDB40 && 0xDD00 <= c2 && c2 <= 0xDDEF) { 849 return hasGlyphVariation(paint, typeface, bidiFlags, str.get(), str.size()); 850 } 851 } else if (0xFE00 <= c && c <= 0xFE0F) { 852 return hasGlyphVariation(paint, typeface, bidiFlags, str.get(), str.size()); 853 } 854 nChars++; 855 } 856 Layout layout; 857 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, str.get(), 0, str.size(), 858 str.size()); 859 size_t nGlyphs = layout.nGlyphs(); 860 if (nGlyphs != 1 && nChars > 1) { 861 // multiple-character input, and was not a ligature 862 // TODO: handle ZWJ/ZWNJ characters specially so we can detect certain ligatures 863 // in joining scripts, such as Arabic and Mongolian. 864 return false; 865 } 866 return nGlyphs > 0 && !layoutContainsNotdef(layout); 867 } 868 869 static jfloat doRunAdvance(const Paint* paint, TypefaceImpl* typeface, const jchar buf[], 870 jint start, jint count, jint bufSize, jboolean isRtl, jint offset) { 871 Layout layout; 872 int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR; 873 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, buf, start, count, bufSize); 874 return getRunAdvance(layout, buf, start, count, offset); 875 } 876 877 static jfloat getRunAdvance___CIIIIZI_F(JNIEnv *env, jclass, jlong paintHandle, 878 jlong typefaceHandle, jcharArray text, jint start, jint end, jint contextStart, 879 jint contextEnd, jboolean isRtl, jint offset) { 880 const Paint* paint = reinterpret_cast<Paint*>(paintHandle); 881 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 882 jchar* textArray = (jchar*) env->GetPrimitiveArrayCritical(text, NULL); 883 jfloat result = doRunAdvance(paint, typeface, textArray + contextStart, 884 start - contextStart, end - start, contextEnd - contextStart, isRtl, 885 offset - contextStart); 886 env->ReleasePrimitiveArrayCritical(text, textArray, JNI_ABORT); 887 return result; 888 } 889 890 static jint doOffsetForAdvance(const Paint* paint, TypefaceImpl* typeface, const jchar buf[], 891 jint start, jint count, jint bufSize, jboolean isRtl, jfloat advance) { 892 Layout layout; 893 int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR; 894 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, buf, start, count, bufSize); 895 return getOffsetForAdvance(layout, buf, start, count, advance); 896 } 897 static jint getOffsetForAdvance___CIIIIZF_I(JNIEnv *env, jclass, jlong paintHandle, 898 jlong typefaceHandle, jcharArray text, jint start, jint end, jint contextStart, 899 jint contextEnd, jboolean isRtl, jfloat advance) { 900 const Paint* paint = reinterpret_cast<Paint*>(paintHandle); 901 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 902 jchar* textArray = (jchar*) env->GetPrimitiveArrayCritical(text, NULL); 903 jint result = doOffsetForAdvance(paint, typeface, textArray + contextStart, 904 start - contextStart, end - start, contextEnd - contextStart, isRtl, advance); 905 result += contextStart; 906 env->ReleasePrimitiveArrayCritical(text, textArray, JNI_ABORT); 907 return result; 908 } 909 910}; // namespace PaintGlue 911 912static const JNINativeMethod methods[] = { 913 {"nFinalizer", "(J)V", (void*) PaintGlue::finalizer}, 914 {"nInit","()J", (void*) PaintGlue::init}, 915 {"nInitWithPaint","(J)J", (void*) PaintGlue::initWithPaint}, 916 917 {"nReset","!(J)V", (void*) PaintGlue::reset}, 918 {"nSet","!(JJ)V", (void*) PaintGlue::assign}, 919 {"nGetFlags","!(J)I", (void*) PaintGlue::getFlags}, 920 {"nSetFlags","!(JI)V", (void*) PaintGlue::setFlags}, 921 {"nGetHinting","!(J)I", (void*) PaintGlue::getHinting}, 922 {"nSetHinting","!(JI)V", (void*) PaintGlue::setHinting}, 923 {"nSetAntiAlias","!(JZ)V", (void*) PaintGlue::setAntiAlias}, 924 {"nSetSubpixelText","!(JZ)V", (void*) PaintGlue::setSubpixelText}, 925 {"nSetLinearText","!(JZ)V", (void*) PaintGlue::setLinearText}, 926 {"nSetUnderlineText","!(JZ)V", (void*) PaintGlue::setUnderlineText}, 927 {"nSetStrikeThruText","!(JZ)V", (void*) PaintGlue::setStrikeThruText}, 928 {"nSetFakeBoldText","!(JZ)V", (void*) PaintGlue::setFakeBoldText}, 929 {"nSetFilterBitmap","!(JZ)V", (void*) PaintGlue::setFilterBitmap}, 930 {"nSetDither","!(JZ)V", (void*) PaintGlue::setDither}, 931 {"nGetStyle","!(J)I", (void*) PaintGlue::getStyle}, 932 {"nSetStyle","!(JI)V", (void*) PaintGlue::setStyle}, 933 {"nGetColor","!(J)I", (void*) PaintGlue::getColor}, 934 {"nSetColor","!(JI)V", (void*) PaintGlue::setColor}, 935 {"nGetAlpha","!(J)I", (void*) PaintGlue::getAlpha}, 936 {"nSetAlpha","!(JI)V", (void*) PaintGlue::setAlpha}, 937 {"nGetStrokeWidth","!(J)F", (void*) PaintGlue::getStrokeWidth}, 938 {"nSetStrokeWidth","!(JF)V", (void*) PaintGlue::setStrokeWidth}, 939 {"nGetStrokeMiter","!(J)F", (void*) PaintGlue::getStrokeMiter}, 940 {"nSetStrokeMiter","!(JF)V", (void*) PaintGlue::setStrokeMiter}, 941 {"nGetStrokeCap","!(J)I", (void*) PaintGlue::getStrokeCap}, 942 {"nSetStrokeCap","!(JI)V", (void*) PaintGlue::setStrokeCap}, 943 {"nGetStrokeJoin","!(J)I", (void*) PaintGlue::getStrokeJoin}, 944 {"nSetStrokeJoin","!(JI)V", (void*) PaintGlue::setStrokeJoin}, 945 {"nGetFillPath","!(JJJ)Z", (void*) PaintGlue::getFillPath}, 946 {"nSetShader","!(JJ)J", (void*) PaintGlue::setShader}, 947 {"nSetColorFilter","!(JJ)J", (void*) PaintGlue::setColorFilter}, 948 {"nSetXfermode","!(JJ)J", (void*) PaintGlue::setXfermode}, 949 {"nSetPathEffect","!(JJ)J", (void*) PaintGlue::setPathEffect}, 950 {"nSetMaskFilter","!(JJ)J", (void*) PaintGlue::setMaskFilter}, 951 {"nSetTypeface","!(JJ)J", (void*) PaintGlue::setTypeface}, 952 {"nSetRasterizer","!(JJ)J", (void*) PaintGlue::setRasterizer}, 953 {"nGetTextAlign","!(J)I", (void*) PaintGlue::getTextAlign}, 954 {"nSetTextAlign","!(JI)V", (void*) PaintGlue::setTextAlign}, 955 {"nSetTextLocale","!(JLjava/lang/String;)V", (void*) PaintGlue::setTextLocale}, 956 {"nIsElegantTextHeight","!(J)Z", (void*) PaintGlue::isElegantTextHeight}, 957 {"nSetElegantTextHeight","!(JZ)V", (void*) PaintGlue::setElegantTextHeight}, 958 {"nGetTextSize","!(J)F", (void*) PaintGlue::getTextSize}, 959 {"nSetTextSize","!(JF)V", (void*) PaintGlue::setTextSize}, 960 {"nGetTextScaleX","!(J)F", (void*) PaintGlue::getTextScaleX}, 961 {"nSetTextScaleX","!(JF)V", (void*) PaintGlue::setTextScaleX}, 962 {"nGetTextSkewX","!(J)F", (void*) PaintGlue::getTextSkewX}, 963 {"nSetTextSkewX","!(JF)V", (void*) PaintGlue::setTextSkewX}, 964 {"nGetLetterSpacing","!(J)F", (void*) PaintGlue::getLetterSpacing}, 965 {"nSetLetterSpacing","!(JF)V", (void*) PaintGlue::setLetterSpacing}, 966 {"nSetFontFeatureSettings","(JLjava/lang/String;)V", 967 (void*) PaintGlue::setFontFeatureSettings}, 968 {"nGetHyphenEdit", "!(J)I", (void*) PaintGlue::getHyphenEdit}, 969 {"nSetHyphenEdit", "!(JI)V", (void*) PaintGlue::setHyphenEdit}, 970 {"nAscent","!(JJ)F", (void*) PaintGlue::ascent}, 971 {"nDescent","!(JJ)F", (void*) PaintGlue::descent}, 972 973 {"nGetFontMetrics", "!(JJLandroid/graphics/Paint$FontMetrics;)F", 974 (void*)PaintGlue::getFontMetrics}, 975 {"nGetFontMetricsInt", "!(JJLandroid/graphics/Paint$FontMetricsInt;)I", 976 (void*)PaintGlue::getFontMetricsInt}, 977 978 {"nBreakText","(JJ[CIIFI[F)I", (void*) PaintGlue::breakTextC}, 979 {"nBreakText","(JJLjava/lang/String;ZFI[F)I", (void*) PaintGlue::breakTextS}, 980 {"nGetTextAdvances","(JJ[CIIIII[FI)F", 981 (void*) PaintGlue::getTextAdvances___CIIIII_FI}, 982 {"nGetTextAdvances","(JJLjava/lang/String;IIIII[FI)F", 983 (void*) PaintGlue::getTextAdvances__StringIIIII_FI}, 984 985 {"nGetTextRunCursor", "(J[CIIIII)I", (void*) PaintGlue::getTextRunCursor___C}, 986 {"nGetTextRunCursor", "(JLjava/lang/String;IIIII)I", 987 (void*) PaintGlue::getTextRunCursor__String}, 988 {"nGetTextPath", "(JJI[CIIFFJ)V", (void*) PaintGlue::getTextPath___C}, 989 {"nGetTextPath", "(JJILjava/lang/String;IIFFJ)V", (void*) PaintGlue::getTextPath__String}, 990 {"nGetStringBounds", "(JJLjava/lang/String;IIILandroid/graphics/Rect;)V", 991 (void*) PaintGlue::getStringBounds }, 992 {"nGetCharArrayBounds", "(JJ[CIIILandroid/graphics/Rect;)V", 993 (void*) PaintGlue::getCharArrayBounds }, 994 {"nHasGlyph", "(JJILjava/lang/String;)Z", (void*) PaintGlue::hasGlyph }, 995 {"nGetRunAdvance", "(JJ[CIIIIZI)F", (void*) PaintGlue::getRunAdvance___CIIIIZI_F}, 996 {"nGetOffsetForAdvance", "(JJ[CIIIIZF)I", 997 (void*) PaintGlue::getOffsetForAdvance___CIIIIZF_I}, 998 999 {"nSetShadowLayer", "!(JFFFI)V", (void*)PaintGlue::setShadowLayer}, 1000 {"nHasShadowLayer", "!(J)Z", (void*)PaintGlue::hasShadowLayer} 1001}; 1002 1003int register_android_graphics_Paint(JNIEnv* env) { 1004 gFontMetrics_class = FindClassOrDie(env, "android/graphics/Paint$FontMetrics"); 1005 gFontMetrics_class = MakeGlobalRefOrDie(env, gFontMetrics_class); 1006 1007 gFontMetrics_fieldID.top = GetFieldIDOrDie(env, gFontMetrics_class, "top", "F"); 1008 gFontMetrics_fieldID.ascent = GetFieldIDOrDie(env, gFontMetrics_class, "ascent", "F"); 1009 gFontMetrics_fieldID.descent = GetFieldIDOrDie(env, gFontMetrics_class, "descent", "F"); 1010 gFontMetrics_fieldID.bottom = GetFieldIDOrDie(env, gFontMetrics_class, "bottom", "F"); 1011 gFontMetrics_fieldID.leading = GetFieldIDOrDie(env, gFontMetrics_class, "leading", "F"); 1012 1013 gFontMetricsInt_class = FindClassOrDie(env, "android/graphics/Paint$FontMetricsInt"); 1014 gFontMetricsInt_class = MakeGlobalRefOrDie(env, gFontMetricsInt_class); 1015 1016 gFontMetricsInt_fieldID.top = GetFieldIDOrDie(env, gFontMetricsInt_class, "top", "I"); 1017 gFontMetricsInt_fieldID.ascent = GetFieldIDOrDie(env, gFontMetricsInt_class, "ascent", "I"); 1018 gFontMetricsInt_fieldID.descent = GetFieldIDOrDie(env, gFontMetricsInt_class, "descent", "I"); 1019 gFontMetricsInt_fieldID.bottom = GetFieldIDOrDie(env, gFontMetricsInt_class, "bottom", "I"); 1020 gFontMetricsInt_fieldID.leading = GetFieldIDOrDie(env, gFontMetricsInt_class, "leading", "I"); 1021 1022 return RegisterMethodsOrDie(env, "android/graphics/Paint", methods, NELEM(methods)); 1023} 1024 1025} 1026