| /* libs/android_runtime/android/graphics/Paint.cpp |
| ** |
| ** Copyright 2006, The Android Open Source Project |
| ** |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| */ |
| |
| #define LOG_TAG "Paint" |
| |
| #include <utils/Log.h> |
| |
| #include "jni.h" |
| #include "GraphicsJNI.h" |
| #include "core_jni_helpers.h" |
| #include <ScopedStringChars.h> |
| #include <ScopedUtfChars.h> |
| |
| #include "SkBlurDrawLooper.h" |
| #include "SkColorFilter.h" |
| #include "SkMaskFilter.h" |
| #include "SkRasterizer.h" |
| #include "SkShader.h" |
| #include "SkTypeface.h" |
| #include "SkXfermode.h" |
| #include "unicode/uloc.h" |
| #include "unicode/ushape.h" |
| #include "utils/Blur.h" |
| |
| #include <minikin/GraphemeBreak.h> |
| #include <minikin/Measurement.h> |
| #include "MinikinSkia.h" |
| #include "MinikinUtils.h" |
| #include "Paint.h" |
| #include "TypefaceImpl.h" |
| |
| #include <vector> |
| |
| // temporary for debugging |
| #include <Caches.h> |
| #include <utils/Log.h> |
| |
| namespace android { |
| |
| struct JMetricsID { |
| jfieldID top; |
| jfieldID ascent; |
| jfieldID descent; |
| jfieldID bottom; |
| jfieldID leading; |
| }; |
| |
| static jclass gFontMetrics_class; |
| static JMetricsID gFontMetrics_fieldID; |
| |
| static jclass gFontMetricsInt_class; |
| static JMetricsID gFontMetricsInt_fieldID; |
| |
| static jclass gPaint_class; |
| static jfieldID gPaint_nativeInstanceID; |
| static jfieldID gPaint_nativeTypefaceID; |
| |
| static void defaultSettingsForAndroid(Paint* paint) { |
| // GlyphID encoding is required because we are using Harfbuzz shaping |
| paint->setTextEncoding(Paint::kGlyphID_TextEncoding); |
| } |
| |
| class PaintGlue { |
| public: |
| enum MoveOpt { |
| AFTER, AT_OR_AFTER, BEFORE, AT_OR_BEFORE, AT |
| }; |
| |
| static Paint* getNativePaint(JNIEnv* env, jobject paint) { |
| SkASSERT(env); |
| SkASSERT(paint); |
| SkASSERT(env->IsInstanceOf(paint, gPaint_class)); |
| jlong paintHandle = env->GetLongField(paint, gPaint_nativeInstanceID); |
| android::Paint* p = reinterpret_cast<android::Paint*>(paintHandle); |
| SkASSERT(p); |
| return p; |
| } |
| |
| static TypefaceImpl* getNativeTypeface(JNIEnv* env, jobject paint) { |
| SkASSERT(env); |
| SkASSERT(paint); |
| SkASSERT(env->IsInstanceOf(paint, gPaint_class)); |
| jlong typefaceHandle = env->GetLongField(paint, gPaint_nativeTypefaceID); |
| android::TypefaceImpl* p = reinterpret_cast<android::TypefaceImpl*>(typefaceHandle); |
| return p; |
| } |
| |
| static void finalizer(JNIEnv* env, jobject clazz, jlong objHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| delete obj; |
| } |
| |
| static jlong init(JNIEnv* env, jobject clazz) { |
| SK_COMPILE_ASSERT(1 << 0 == SkPaint::kAntiAlias_Flag, paint_flags_mismatch); |
| SK_COMPILE_ASSERT(1 << 2 == SkPaint::kDither_Flag, paint_flags_mismatch); |
| SK_COMPILE_ASSERT(1 << 3 == SkPaint::kUnderlineText_Flag, paint_flags_mismatch); |
| SK_COMPILE_ASSERT(1 << 4 == SkPaint::kStrikeThruText_Flag, paint_flags_mismatch); |
| SK_COMPILE_ASSERT(1 << 5 == SkPaint::kFakeBoldText_Flag, paint_flags_mismatch); |
| SK_COMPILE_ASSERT(1 << 6 == SkPaint::kLinearText_Flag, paint_flags_mismatch); |
| SK_COMPILE_ASSERT(1 << 7 == SkPaint::kSubpixelText_Flag, paint_flags_mismatch); |
| SK_COMPILE_ASSERT(1 << 8 == SkPaint::kDevKernText_Flag, paint_flags_mismatch); |
| SK_COMPILE_ASSERT(1 << 10 == SkPaint::kEmbeddedBitmapText_Flag, paint_flags_mismatch); |
| |
| Paint* obj = new Paint(); |
| defaultSettingsForAndroid(obj); |
| return reinterpret_cast<jlong>(obj); |
| } |
| |
| static jlong initWithPaint(JNIEnv* env, jobject clazz, jlong paintHandle) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| Paint* obj = new Paint(*paint); |
| return reinterpret_cast<jlong>(obj); |
| } |
| |
| static void reset(JNIEnv* env, jobject clazz, jlong objHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| obj->reset(); |
| defaultSettingsForAndroid(obj); |
| } |
| |
| static void assign(JNIEnv* env, jobject clazz, jlong dstPaintHandle, jlong srcPaintHandle) { |
| Paint* dst = reinterpret_cast<Paint*>(dstPaintHandle); |
| const Paint* src = reinterpret_cast<Paint*>(srcPaintHandle); |
| *dst = *src; |
| } |
| |
| // Equivalent to the Java Paint's FILTER_BITMAP_FLAG. |
| static const uint32_t sFilterBitmapFlag = 0x02; |
| |
| static jint getFlags(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| Paint* nativePaint = getNativePaint(env, paint); |
| uint32_t result = nativePaint->getFlags(); |
| result &= ~sFilterBitmapFlag; // Filtering no longer stored in this bit. Mask away. |
| if (nativePaint->getFilterQuality() != kNone_SkFilterQuality) { |
| result |= sFilterBitmapFlag; |
| } |
| return static_cast<jint>(result); |
| } |
| |
| static void setFlags(JNIEnv* env, jobject paint, jint flags) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| Paint* nativePaint = getNativePaint(env, paint); |
| // Instead of modifying 0x02, change the filter level. |
| nativePaint->setFilterQuality(flags & sFilterBitmapFlag |
| ? kLow_SkFilterQuality |
| : kNone_SkFilterQuality); |
| // Don't pass through filter flag, which is no longer stored in paint's flags. |
| flags &= ~sFilterBitmapFlag; |
| // Use the existing value for 0x02. |
| const uint32_t existing0x02Flag = nativePaint->getFlags() & sFilterBitmapFlag; |
| flags |= existing0x02Flag; |
| nativePaint->setFlags(flags); |
| } |
| |
| static jint getHinting(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| return getNativePaint(env, paint)->getHinting() |
| == Paint::kNo_Hinting ? 0 : 1; |
| } |
| |
| static void setHinting(JNIEnv* env, jobject paint, jint mode) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setHinting( |
| mode == 0 ? Paint::kNo_Hinting : Paint::kNormal_Hinting); |
| } |
| |
| static void setAntiAlias(JNIEnv* env, jobject paint, jboolean aa) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setAntiAlias(aa); |
| } |
| |
| static void setLinearText(JNIEnv* env, jobject paint, jboolean linearText) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setLinearText(linearText); |
| } |
| |
| static void setSubpixelText(JNIEnv* env, jobject paint, jboolean subpixelText) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setSubpixelText(subpixelText); |
| } |
| |
| static void setUnderlineText(JNIEnv* env, jobject paint, jboolean underlineText) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setUnderlineText(underlineText); |
| } |
| |
| static void setStrikeThruText(JNIEnv* env, jobject paint, jboolean strikeThruText) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setStrikeThruText(strikeThruText); |
| } |
| |
| static void setFakeBoldText(JNIEnv* env, jobject paint, jboolean fakeBoldText) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setFakeBoldText(fakeBoldText); |
| } |
| |
| static void setFilterBitmap(JNIEnv* env, jobject paint, jboolean filterBitmap) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setFilterQuality( |
| filterBitmap ? kLow_SkFilterQuality : kNone_SkFilterQuality); |
| } |
| |
| static void setDither(JNIEnv* env, jobject paint, jboolean dither) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setDither(dither); |
| } |
| |
| static jint getStyle(JNIEnv* env, jobject clazz,jlong objHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| return static_cast<jint>(obj->getStyle()); |
| } |
| |
| static void setStyle(JNIEnv* env, jobject clazz, jlong objHandle, jint styleHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| Paint::Style style = static_cast<Paint::Style>(styleHandle); |
| obj->setStyle(style); |
| } |
| |
| static jint getColor(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| int color; |
| color = getNativePaint(env, paint)->getColor(); |
| return static_cast<jint>(color); |
| } |
| |
| static jint getAlpha(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| int alpha; |
| alpha = getNativePaint(env, paint)->getAlpha(); |
| return static_cast<jint>(alpha); |
| } |
| |
| static void setColor(JNIEnv* env, jobject paint, jint color) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setColor(color); |
| } |
| |
| static void setAlpha(JNIEnv* env, jobject paint, jint a) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setAlpha(a); |
| } |
| |
| static jfloat getStrokeWidth(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| return SkScalarToFloat(getNativePaint(env, paint)->getStrokeWidth()); |
| } |
| |
| static void setStrokeWidth(JNIEnv* env, jobject paint, jfloat width) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setStrokeWidth(width); |
| } |
| |
| static jfloat getStrokeMiter(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| return SkScalarToFloat(getNativePaint(env, paint)->getStrokeMiter()); |
| } |
| |
| static void setStrokeMiter(JNIEnv* env, jobject paint, jfloat miter) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setStrokeMiter(miter); |
| } |
| |
| static jint getStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| return static_cast<jint>(obj->getStrokeCap()); |
| } |
| |
| static void setStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle, jint capHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| Paint::Cap cap = static_cast<Paint::Cap>(capHandle); |
| obj->setStrokeCap(cap); |
| } |
| |
| static jint getStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| return static_cast<jint>(obj->getStrokeJoin()); |
| } |
| |
| static void setStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle, jint joinHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| Paint::Join join = (Paint::Join) joinHandle; |
| obj->setStrokeJoin(join); |
| } |
| |
| static jboolean getFillPath(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle, jlong dstHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| SkPath* src = reinterpret_cast<SkPath*>(srcHandle); |
| SkPath* dst = reinterpret_cast<SkPath*>(dstHandle); |
| return obj->getFillPath(*src, dst) ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static jlong setShader(JNIEnv* env, jobject clazz, jlong objHandle, jlong shaderHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| SkShader* shader = reinterpret_cast<SkShader*>(shaderHandle); |
| return reinterpret_cast<jlong>(obj->setShader(shader)); |
| } |
| |
| static jlong setColorFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong filterHandle) { |
| Paint* obj = reinterpret_cast<Paint *>(objHandle); |
| SkColorFilter* filter = reinterpret_cast<SkColorFilter *>(filterHandle); |
| return reinterpret_cast<jlong>(obj->setColorFilter(filter)); |
| } |
| |
| static jlong setXfermode(JNIEnv* env, jobject clazz, jlong objHandle, jlong xfermodeHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| SkXfermode* xfermode = reinterpret_cast<SkXfermode*>(xfermodeHandle); |
| return reinterpret_cast<jlong>(obj->setXfermode(xfermode)); |
| } |
| |
| static jlong setPathEffect(JNIEnv* env, jobject clazz, jlong objHandle, jlong effectHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| SkPathEffect* effect = reinterpret_cast<SkPathEffect*>(effectHandle); |
| return reinterpret_cast<jlong>(obj->setPathEffect(effect)); |
| } |
| |
| static jlong setMaskFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong maskfilterHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| SkMaskFilter* maskfilter = reinterpret_cast<SkMaskFilter*>(maskfilterHandle); |
| return reinterpret_cast<jlong>(obj->setMaskFilter(maskfilter)); |
| } |
| |
| static jlong setTypeface(JNIEnv* env, jobject clazz, jlong objHandle, jlong typefaceHandle) { |
| // TODO: in Paint refactoring, set typeface on android Paint, not Paint |
| return NULL; |
| } |
| |
| static jlong setRasterizer(JNIEnv* env, jobject clazz, jlong objHandle, jlong rasterizerHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| SkAutoTUnref<SkRasterizer> rasterizer(GraphicsJNI::refNativeRasterizer(rasterizerHandle)); |
| return reinterpret_cast<jlong>(obj->setRasterizer(rasterizer)); |
| } |
| |
| static jint getTextAlign(JNIEnv* env, jobject clazz, jlong objHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| return static_cast<jint>(obj->getTextAlign()); |
| } |
| |
| static void setTextAlign(JNIEnv* env, jobject clazz, jlong objHandle, jint alignHandle) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| Paint::Align align = static_cast<Paint::Align>(alignHandle); |
| obj->setTextAlign(align); |
| } |
| |
| // generate bcp47 identifier for the supplied locale |
| static void toLanguageTag(char* output, size_t outSize, |
| const char* locale) { |
| if (output == NULL || outSize <= 0) { |
| return; |
| } |
| if (locale == NULL) { |
| output[0] = '\0'; |
| return; |
| } |
| char canonicalChars[ULOC_FULLNAME_CAPACITY]; |
| UErrorCode uErr = U_ZERO_ERROR; |
| uloc_canonicalize(locale, canonicalChars, ULOC_FULLNAME_CAPACITY, |
| &uErr); |
| if (U_SUCCESS(uErr)) { |
| char likelyChars[ULOC_FULLNAME_CAPACITY]; |
| uErr = U_ZERO_ERROR; |
| uloc_addLikelySubtags(canonicalChars, likelyChars, |
| ULOC_FULLNAME_CAPACITY, &uErr); |
| if (U_SUCCESS(uErr)) { |
| uErr = U_ZERO_ERROR; |
| uloc_toLanguageTag(likelyChars, output, outSize, FALSE, &uErr); |
| if (U_SUCCESS(uErr)) { |
| return; |
| } else { |
| ALOGD("uloc_toLanguageTag(\"%s\") failed: %s", likelyChars, |
| u_errorName(uErr)); |
| } |
| } else { |
| ALOGD("uloc_addLikelySubtags(\"%s\") failed: %s", |
| canonicalChars, u_errorName(uErr)); |
| } |
| } else { |
| ALOGD("uloc_canonicalize(\"%s\") failed: %s", locale, |
| u_errorName(uErr)); |
| } |
| // unable to build a proper language identifier |
| output[0] = '\0'; |
| } |
| |
| static void setTextLocale(JNIEnv* env, jobject clazz, jlong objHandle, jstring locale) { |
| Paint* obj = reinterpret_cast<Paint*>(objHandle); |
| ScopedUtfChars localeChars(env, locale); |
| char langTag[ULOC_FULLNAME_CAPACITY]; |
| toLanguageTag(langTag, ULOC_FULLNAME_CAPACITY, localeChars.c_str()); |
| |
| obj->setTextLocale(langTag); |
| } |
| |
| static jboolean isElegantTextHeight(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| Paint* obj = getNativePaint(env, paint); |
| return obj->getFontVariant() == VARIANT_ELEGANT; |
| } |
| |
| static void setElegantTextHeight(JNIEnv* env, jobject paint, jboolean aa) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| Paint* obj = getNativePaint(env, paint); |
| obj->setFontVariant(aa ? VARIANT_ELEGANT : VARIANT_DEFAULT); |
| } |
| |
| static jfloat getTextSize(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| return SkScalarToFloat(getNativePaint(env, paint)->getTextSize()); |
| } |
| |
| static void setTextSize(JNIEnv* env, jobject paint, jfloat textSize) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setTextSize(textSize); |
| } |
| |
| static jfloat getTextScaleX(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| return SkScalarToFloat(getNativePaint(env, paint)->getTextScaleX()); |
| } |
| |
| static void setTextScaleX(JNIEnv* env, jobject paint, jfloat scaleX) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setTextScaleX(scaleX); |
| } |
| |
| static jfloat getTextSkewX(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| return SkScalarToFloat(getNativePaint(env, paint)->getTextSkewX()); |
| } |
| |
| static void setTextSkewX(JNIEnv* env, jobject paint, jfloat skewX) { |
| NPE_CHECK_RETURN_VOID(env, paint); |
| getNativePaint(env, paint)->setTextSkewX(skewX); |
| } |
| |
| static jfloat getLetterSpacing(JNIEnv* env, jobject clazz, jlong paintHandle) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| return paint->getLetterSpacing(); |
| } |
| |
| static void setLetterSpacing(JNIEnv* env, jobject clazz, jlong paintHandle, jfloat letterSpacing) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| paint->setLetterSpacing(letterSpacing); |
| } |
| |
| static void setFontFeatureSettings(JNIEnv* env, jobject clazz, jlong paintHandle, jstring settings) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| if (!settings) { |
| paint->setFontFeatureSettings(std::string()); |
| } else { |
| ScopedUtfChars settingsChars(env, settings); |
| paint->setFontFeatureSettings(std::string(settingsChars.c_str(), settingsChars.size())); |
| } |
| } |
| |
| static jint getHyphenEdit(JNIEnv* env, jobject clazz, jlong paintHandle, jint hyphen) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| return paint->getHyphenEdit(); |
| } |
| |
| static void setHyphenEdit(JNIEnv* env, jobject clazz, jlong paintHandle, jint hyphen) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| paint->setHyphenEdit((uint32_t)hyphen); |
| } |
| |
| static SkScalar getMetricsInternal(JNIEnv* env, jobject jpaint, Paint::FontMetrics *metrics) { |
| const int kElegantTop = 2500; |
| const int kElegantBottom = -1000; |
| const int kElegantAscent = 1900; |
| const int kElegantDescent = -500; |
| const int kElegantLeading = 0; |
| Paint* paint = getNativePaint(env, jpaint); |
| TypefaceImpl* typeface = getNativeTypeface(env, jpaint); |
| typeface = TypefaceImpl_resolveDefault(typeface); |
| FakedFont baseFont = typeface->fFontCollection->baseFontFaked(typeface->fStyle); |
| float saveSkewX = paint->getTextSkewX(); |
| bool savefakeBold = paint->isFakeBoldText(); |
| MinikinFontSkia::populateSkPaint(paint, baseFont.font, baseFont.fakery); |
| SkScalar spacing = paint->getFontMetrics(metrics); |
| // The populateSkPaint call may have changed fake bold / text skew |
| // because we want to measure with those effects applied, so now |
| // restore the original settings. |
| paint->setTextSkewX(saveSkewX); |
| paint->setFakeBoldText(savefakeBold); |
| if (paint->getFontVariant() == VARIANT_ELEGANT) { |
| SkScalar size = paint->getTextSize(); |
| metrics->fTop = -size * kElegantTop / 2048; |
| metrics->fBottom = -size * kElegantBottom / 2048; |
| metrics->fAscent = -size * kElegantAscent / 2048; |
| metrics->fDescent = -size * kElegantDescent / 2048; |
| metrics->fLeading = size * kElegantLeading / 2048; |
| spacing = metrics->fDescent - metrics->fAscent + metrics->fLeading; |
| } |
| return spacing; |
| } |
| |
| static jfloat ascent(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| Paint::FontMetrics metrics; |
| getMetricsInternal(env, paint, &metrics); |
| return SkScalarToFloat(metrics.fAscent); |
| } |
| |
| static jfloat descent(JNIEnv* env, jobject paint) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| Paint::FontMetrics metrics; |
| getMetricsInternal(env, paint, &metrics); |
| return SkScalarToFloat(metrics.fDescent); |
| } |
| |
| static jfloat getFontMetrics(JNIEnv* env, jobject paint, jobject metricsObj) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| Paint::FontMetrics metrics; |
| SkScalar spacing = getMetricsInternal(env, paint, &metrics); |
| |
| if (metricsObj) { |
| SkASSERT(env->IsInstanceOf(metricsObj, gFontMetrics_class)); |
| env->SetFloatField(metricsObj, gFontMetrics_fieldID.top, SkScalarToFloat(metrics.fTop)); |
| env->SetFloatField(metricsObj, gFontMetrics_fieldID.ascent, SkScalarToFloat(metrics.fAscent)); |
| env->SetFloatField(metricsObj, gFontMetrics_fieldID.descent, SkScalarToFloat(metrics.fDescent)); |
| env->SetFloatField(metricsObj, gFontMetrics_fieldID.bottom, SkScalarToFloat(metrics.fBottom)); |
| env->SetFloatField(metricsObj, gFontMetrics_fieldID.leading, SkScalarToFloat(metrics.fLeading)); |
| } |
| return SkScalarToFloat(spacing); |
| } |
| |
| static jint getFontMetricsInt(JNIEnv* env, jobject paint, jobject metricsObj) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| Paint::FontMetrics metrics; |
| |
| getMetricsInternal(env, paint, &metrics); |
| int ascent = SkScalarRoundToInt(metrics.fAscent); |
| int descent = SkScalarRoundToInt(metrics.fDescent); |
| int leading = SkScalarRoundToInt(metrics.fLeading); |
| |
| if (metricsObj) { |
| SkASSERT(env->IsInstanceOf(metricsObj, gFontMetricsInt_class)); |
| env->SetIntField(metricsObj, gFontMetricsInt_fieldID.top, SkScalarFloorToInt(metrics.fTop)); |
| env->SetIntField(metricsObj, gFontMetricsInt_fieldID.ascent, ascent); |
| env->SetIntField(metricsObj, gFontMetricsInt_fieldID.descent, descent); |
| env->SetIntField(metricsObj, gFontMetricsInt_fieldID.bottom, SkScalarCeilToInt(metrics.fBottom)); |
| env->SetIntField(metricsObj, gFontMetricsInt_fieldID.leading, leading); |
| } |
| return descent - ascent + leading; |
| } |
| |
| static jfloat measureText_CIII(JNIEnv* env, jobject jpaint, jcharArray text, jint index, jint count, |
| jint bidiFlags) { |
| NPE_CHECK_RETURN_ZERO(env, jpaint); |
| NPE_CHECK_RETURN_ZERO(env, text); |
| |
| size_t textLength = env->GetArrayLength(text); |
| if ((index | count) < 0 || (size_t)(index + count) > textLength) { |
| doThrowAIOOBE(env); |
| return 0; |
| } |
| if (count == 0) { |
| return 0; |
| } |
| |
| Paint* paint = getNativePaint(env, jpaint); |
| const jchar* textArray = env->GetCharArrayElements(text, NULL); |
| jfloat result = 0; |
| |
| Layout layout; |
| TypefaceImpl* typeface = getNativeTypeface(env, jpaint); |
| MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, textArray, index, count, textLength); |
| result = layout.getAdvance(); |
| env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); |
| return result; |
| } |
| |
| static jfloat measureText_StringIII(JNIEnv* env, jobject jpaint, jstring text, jint start, jint end, |
| jint bidiFlags) { |
| NPE_CHECK_RETURN_ZERO(env, jpaint); |
| NPE_CHECK_RETURN_ZERO(env, text); |
| |
| size_t textLength = env->GetStringLength(text); |
| int count = end - start; |
| if ((start | count) < 0 || (size_t)end > textLength) { |
| doThrowAIOOBE(env); |
| return 0; |
| } |
| if (count == 0) { |
| return 0; |
| } |
| |
| const jchar* textArray = env->GetStringChars(text, NULL); |
| Paint* paint = getNativePaint(env, jpaint); |
| jfloat width = 0; |
| |
| Layout layout; |
| TypefaceImpl* typeface = getNativeTypeface(env, jpaint); |
| MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, textArray, start, count, textLength); |
| width = layout.getAdvance(); |
| |
| env->ReleaseStringChars(text, textArray); |
| return width; |
| } |
| |
| static jfloat measureText_StringI(JNIEnv* env, jobject jpaint, jstring text, jint bidiFlags) { |
| NPE_CHECK_RETURN_ZERO(env, jpaint); |
| NPE_CHECK_RETURN_ZERO(env, text); |
| |
| size_t textLength = env->GetStringLength(text); |
| if (textLength == 0) { |
| return 0; |
| } |
| |
| const jchar* textArray = env->GetStringChars(text, NULL); |
| Paint* paint = getNativePaint(env, jpaint); |
| jfloat width = 0; |
| |
| Layout layout; |
| TypefaceImpl* typeface = getNativeTypeface(env, jpaint); |
| MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, textArray, 0, textLength, textLength); |
| width = layout.getAdvance(); |
| |
| env->ReleaseStringChars(text, textArray); |
| return width; |
| } |
| |
| static int dotextwidths(JNIEnv* env, Paint* paint, TypefaceImpl* typeface, const jchar text[], int count, |
| jfloatArray widths, jint bidiFlags) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| NPE_CHECK_RETURN_ZERO(env, text); |
| |
| if (count < 0 || !widths) { |
| doThrowAIOOBE(env); |
| return 0; |
| } |
| if (count == 0) { |
| return 0; |
| } |
| size_t widthsLength = env->GetArrayLength(widths); |
| if ((size_t)count > widthsLength) { |
| doThrowAIOOBE(env); |
| return 0; |
| } |
| |
| AutoJavaFloatArray autoWidths(env, widths, count); |
| jfloat* widthsArray = autoWidths.ptr(); |
| |
| Layout layout; |
| MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, 0, count, count); |
| layout.getAdvances(widthsArray); |
| |
| return count; |
| } |
| |
| static jint getTextWidths___CIII_F(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jcharArray text, |
| jint index, jint count, jint bidiFlags, jfloatArray widths) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| const jchar* textArray = env->GetCharArrayElements(text, NULL); |
| count = dotextwidths(env, paint, typeface, textArray + index, count, widths, bidiFlags); |
| env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), |
| JNI_ABORT); |
| return count; |
| } |
| |
| static jint getTextWidths__StringIII_F(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jstring text, |
| jint start, jint end, jint bidiFlags, jfloatArray widths) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| const jchar* textArray = env->GetStringChars(text, NULL); |
| int count = dotextwidths(env, paint, typeface, textArray + start, end - start, widths, bidiFlags); |
| env->ReleaseStringChars(text, textArray); |
| return count; |
| } |
| |
| static jfloat doTextRunAdvances(JNIEnv *env, Paint *paint, TypefaceImpl* typeface, const jchar *text, |
| jint start, jint count, jint contextCount, jboolean isRtl, |
| jfloatArray advances, jint advancesIndex) { |
| NPE_CHECK_RETURN_ZERO(env, paint); |
| NPE_CHECK_RETURN_ZERO(env, text); |
| |
| if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) { |
| doThrowAIOOBE(env); |
| return 0; |
| } |
| if (count == 0) { |
| return 0; |
| } |
| if (advances) { |
| size_t advancesLength = env->GetArrayLength(advances); |
| if ((size_t)count > advancesLength) { |
| doThrowAIOOBE(env); |
| return 0; |
| } |
| } |
| jfloat* advancesArray = new jfloat[count]; |
| jfloat totalAdvance = 0; |
| |
| int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR; |
| |
| Layout layout; |
| MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, start, count, contextCount); |
| layout.getAdvances(advancesArray); |
| totalAdvance = layout.getAdvance(); |
| |
| if (advances != NULL) { |
| env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray); |
| } |
| delete [] advancesArray; |
| return totalAdvance; |
| } |
| |
| static jfloat getTextRunAdvances___CIIIIZ_FI(JNIEnv* env, jobject clazz, jlong paintHandle, |
| jlong typefaceHandle, |
| jcharArray text, jint index, jint count, jint contextIndex, jint contextCount, |
| jboolean isRtl, jfloatArray advances, jint advancesIndex) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| jchar* textArray = env->GetCharArrayElements(text, NULL); |
| jfloat result = doTextRunAdvances(env, paint, typeface, textArray + contextIndex, |
| index - contextIndex, count, contextCount, isRtl, advances, advancesIndex); |
| env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); |
| return result; |
| } |
| |
| static jfloat getTextRunAdvances__StringIIIIZ_FI(JNIEnv* env, jobject clazz, jlong paintHandle, |
| jlong typefaceHandle, |
| jstring text, jint start, jint end, jint contextStart, jint contextEnd, jboolean isRtl, |
| jfloatArray advances, jint advancesIndex) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| const jchar* textArray = env->GetStringChars(text, NULL); |
| jfloat result = doTextRunAdvances(env, paint, typeface, textArray + contextStart, |
| start - contextStart, end - start, contextEnd - contextStart, isRtl, |
| advances, advancesIndex); |
| env->ReleaseStringChars(text, textArray); |
| return result; |
| } |
| |
| static jint doTextRunCursor(JNIEnv *env, Paint* paint, const jchar *text, jint start, |
| jint count, jint flags, jint offset, jint opt) { |
| GraphemeBreak::MoveOpt moveOpt = GraphemeBreak::MoveOpt(opt); |
| size_t result = GraphemeBreak::getTextRunCursor(text, start, count, offset, moveOpt); |
| return static_cast<jint>(result); |
| } |
| |
| static jint getTextRunCursor___C(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray text, |
| jint contextStart, jint contextCount, jint dir, jint offset, jint cursorOpt) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| jchar* textArray = env->GetCharArrayElements(text, NULL); |
| jint result = doTextRunCursor(env, paint, textArray, contextStart, contextCount, dir, |
| offset, cursorOpt); |
| env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); |
| return result; |
| } |
| |
| static jint getTextRunCursor__String(JNIEnv* env, jobject clazz, jlong paintHandle, jstring text, |
| jint contextStart, jint contextEnd, jint dir, jint offset, jint cursorOpt) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| const jchar* textArray = env->GetStringChars(text, NULL); |
| jint result = doTextRunCursor(env, paint, textArray, contextStart, |
| contextEnd - contextStart, dir, offset, cursorOpt); |
| env->ReleaseStringChars(text, textArray); |
| return result; |
| } |
| |
| class GetTextFunctor { |
| public: |
| GetTextFunctor(const Layout& layout, SkPath* path, jfloat x, jfloat y, Paint* paint, |
| uint16_t* glyphs, SkPoint* pos) |
| : layout(layout), path(path), x(x), y(y), paint(paint), glyphs(glyphs), pos(pos) { |
| } |
| |
| void operator()(size_t start, size_t end) { |
| for (size_t i = start; i < end; i++) { |
| glyphs[i] = layout.getGlyphId(i); |
| pos[i].fX = x + layout.getX(i); |
| pos[i].fY = y + layout.getY(i); |
| } |
| if (start == 0) { |
| paint->getPosTextPath(glyphs + start, (end - start) << 1, pos + start, path); |
| } else { |
| paint->getPosTextPath(glyphs + start, (end - start) << 1, pos + start, &tmpPath); |
| path->addPath(tmpPath); |
| } |
| } |
| private: |
| const Layout& layout; |
| SkPath* path; |
| jfloat x; |
| jfloat y; |
| Paint* paint; |
| uint16_t* glyphs; |
| SkPoint* pos; |
| SkPath tmpPath; |
| }; |
| |
| static void getTextPath(JNIEnv* env, Paint* paint, TypefaceImpl* typeface, const jchar* text, |
| jint count, jint bidiFlags, jfloat x, jfloat y, SkPath* path) { |
| Layout layout; |
| MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, 0, count, count); |
| size_t nGlyphs = layout.nGlyphs(); |
| uint16_t* glyphs = new uint16_t[nGlyphs]; |
| SkPoint* pos = new SkPoint[nGlyphs]; |
| |
| x += MinikinUtils::xOffsetForTextAlign(paint, layout); |
| Paint::Align align = paint->getTextAlign(); |
| paint->setTextAlign(Paint::kLeft_Align); |
| paint->setTextEncoding(Paint::kGlyphID_TextEncoding); |
| GetTextFunctor f(layout, path, x, y, paint, glyphs, pos); |
| MinikinUtils::forFontRun(layout, paint, f); |
| paint->setTextAlign(align); |
| delete[] glyphs; |
| delete[] pos; |
| } |
| |
| static void getTextPath___C(JNIEnv* env, jobject clazz, jlong paintHandle, |
| jlong typefaceHandle, jint bidiFlags, |
| jcharArray text, jint index, jint count, jfloat x, jfloat y, jlong pathHandle) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| SkPath* path = reinterpret_cast<SkPath*>(pathHandle); |
| const jchar* textArray = env->GetCharArrayElements(text, NULL); |
| getTextPath(env, paint, typeface, textArray + index, count, bidiFlags, x, y, path); |
| env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); |
| } |
| |
| static void getTextPath__String(JNIEnv* env, jobject clazz, jlong paintHandle, |
| jlong typefaceHandle, jint bidiFlags, |
| jstring text, jint start, jint end, jfloat x, jfloat y, jlong pathHandle) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| SkPath* path = reinterpret_cast<SkPath*>(pathHandle); |
| const jchar* textArray = env->GetStringChars(text, NULL); |
| getTextPath(env, paint, typeface, textArray + start, end - start, bidiFlags, x, y, path); |
| env->ReleaseStringChars(text, textArray); |
| } |
| |
| static void setShadowLayer(JNIEnv* env, jobject clazz, jlong paintHandle, jfloat radius, |
| jfloat dx, jfloat dy, jint color) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| if (radius <= 0) { |
| paint->setLooper(NULL); |
| } |
| else { |
| SkScalar sigma = android::uirenderer::Blur::convertRadiusToSigma(radius); |
| paint->setLooper(SkBlurDrawLooper::Create((SkColor)color, sigma, dx, dy))->unref(); |
| } |
| } |
| |
| static jboolean hasShadowLayer(JNIEnv* env, jobject clazz, jlong paintHandle) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| return paint->getLooper() && paint->getLooper()->asABlurShadow(NULL); |
| } |
| |
| static int breakText(JNIEnv* env, const Paint& paint, TypefaceImpl* typeface, const jchar text[], |
| int count, float maxWidth, jint bidiFlags, jfloatArray jmeasured, |
| const bool forwardScan) { |
| size_t measuredCount = 0; |
| float measured = 0; |
| |
| Layout layout; |
| MinikinUtils::doLayout(&layout, &paint, bidiFlags, typeface, text, 0, count, count); |
| float* advances = new float[count]; |
| layout.getAdvances(advances); |
| |
| for (int i = 0; i < count; i++) { |
| // traverse in the given direction |
| int index = forwardScan ? i : (count - i - 1); |
| float width = advances[index]; |
| if (measured + width > maxWidth) { |
| break; |
| } |
| // properly handle clusters when scanning backwards |
| if (forwardScan || width != 0.0f) { |
| measuredCount = i + 1; |
| } |
| measured += width; |
| } |
| delete[] advances; |
| |
| if (jmeasured && env->GetArrayLength(jmeasured) > 0) { |
| AutoJavaFloatArray autoMeasured(env, jmeasured, 1); |
| jfloat* array = autoMeasured.ptr(); |
| array[0] = measured; |
| } |
| return measuredCount; |
| } |
| |
| static jint breakTextC(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jcharArray jtext, |
| jint index, jint count, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { |
| NPE_CHECK_RETURN_ZERO(env, jtext); |
| |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| |
| bool forwardTextDirection; |
| if (count < 0) { |
| forwardTextDirection = false; |
| count = -count; |
| } |
| else { |
| forwardTextDirection = true; |
| } |
| |
| if ((index < 0) || (index + count > env->GetArrayLength(jtext))) { |
| doThrowAIOOBE(env); |
| return 0; |
| } |
| |
| const jchar* text = env->GetCharArrayElements(jtext, NULL); |
| count = breakText(env, *paint, typeface, text + index, count, maxWidth, |
| bidiFlags, jmeasuredWidth, forwardTextDirection); |
| env->ReleaseCharArrayElements(jtext, const_cast<jchar*>(text), |
| JNI_ABORT); |
| return count; |
| } |
| |
| static jint breakTextS(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jstring jtext, |
| jboolean forwards, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { |
| NPE_CHECK_RETURN_ZERO(env, jtext); |
| |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| |
| int count = env->GetStringLength(jtext); |
| const jchar* text = env->GetStringChars(jtext, NULL); |
| count = breakText(env, *paint, typeface, text, count, maxWidth, bidiFlags, jmeasuredWidth, forwards); |
| env->ReleaseStringChars(jtext, text); |
| return count; |
| } |
| |
| static void doTextBounds(JNIEnv* env, const jchar* text, int count, jobject bounds, |
| const Paint& paint, TypefaceImpl* typeface, jint bidiFlags) { |
| SkRect r; |
| SkIRect ir; |
| |
| Layout layout; |
| MinikinUtils::doLayout(&layout, &paint, bidiFlags, typeface, text, 0, count, count); |
| MinikinRect rect; |
| layout.getBounds(&rect); |
| r.fLeft = rect.mLeft; |
| r.fTop = rect.mTop; |
| r.fRight = rect.mRight; |
| r.fBottom = rect.mBottom; |
| r.roundOut(&ir); |
| GraphicsJNI::irect_to_jrect(ir, env, bounds); |
| } |
| |
| static void getStringBounds(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle, |
| jstring text, jint start, jint end, jint bidiFlags, jobject bounds) { |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle);; |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| const jchar* textArray = env->GetStringChars(text, NULL); |
| doTextBounds(env, textArray + start, end - start, bounds, *paint, typeface, bidiFlags); |
| env->ReleaseStringChars(text, textArray); |
| } |
| |
| static void getCharArrayBounds(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle, |
| jcharArray text, jint index, jint count, jint bidiFlags, jobject bounds) { |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| const jchar* textArray = env->GetCharArrayElements(text, NULL); |
| doTextBounds(env, textArray + index, count, bounds, *paint, typeface, bidiFlags); |
| env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), |
| JNI_ABORT); |
| } |
| |
| static jboolean layoutContainsNotdef(const Layout& layout) { |
| for (size_t i = 0; i < layout.nGlyphs(); i++) { |
| if (layout.getGlyphId(i) == 0) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| static jboolean hasGlyphVariation(const Paint* paint, TypefaceImpl* typeface, jint bidiFlags, |
| const jchar* chars, size_t size) { |
| // TODO: query font for whether character has variation selector; requires a corresponding |
| // function in Minikin. |
| return false; |
| } |
| |
| static jboolean hasGlyph(JNIEnv *env, jclass, jlong paintHandle, jlong typefaceHandle, |
| jint bidiFlags, jstring string) { |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| ScopedStringChars str(env, string); |
| |
| /* start by rejecting variation selectors (not supported yet) */ |
| size_t nChars = 0; |
| for (size_t i = 0; i < str.size(); i++) { |
| jchar c = str[i]; |
| if (0xDC00 <= c && c <= 0xDFFF) { |
| // invalid UTF-16, unpaired trailing surrogate |
| return false; |
| } else if (0xD800 <= c && c <= 0xDBFF) { |
| if (i + 1 == str.size()) { |
| // invalid UTF-16, unpaired leading surrogate at end of string |
| return false; |
| } |
| i++; |
| jchar c2 = str[i]; |
| if (!(0xDC00 <= c2 && c2 <= 0xDFFF)) { |
| // invalid UTF-16, unpaired leading surrogate |
| return false; |
| } |
| // UTF-16 encoding of range U+E0100..U+E01EF is DB40 DD00 .. DB40 DDEF |
| if (c == 0xDB40 && 0xDD00 <= c2 && c2 <= 0xDDEF) { |
| return hasGlyphVariation(paint, typeface, bidiFlags, str.get(), str.size()); |
| } |
| } else if (0xFE00 <= c && c <= 0xFE0F) { |
| return hasGlyphVariation(paint, typeface, bidiFlags, str.get(), str.size()); |
| } |
| nChars++; |
| } |
| Layout layout; |
| MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, str.get(), 0, str.size(), |
| str.size()); |
| size_t nGlyphs = layout.nGlyphs(); |
| if (nGlyphs != 1 && nChars > 1) { |
| // multiple-character input, and was not a ligature |
| // TODO: handle ZWJ/ZWNJ characters specially so we can detect certain ligatures |
| // in joining scripts, such as Arabic and Mongolian. |
| return false; |
| } |
| return nGlyphs > 0 && !layoutContainsNotdef(layout); |
| } |
| |
| static jfloat doRunAdvance(const Paint* paint, TypefaceImpl* typeface, const jchar buf[], |
| jint start, jint count, jint bufSize, jboolean isRtl, jint offset) { |
| Layout layout; |
| int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR; |
| MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, buf, start, count, bufSize); |
| return getRunAdvance(layout, buf, start, count, offset); |
| } |
| |
| static jfloat getRunAdvance___CIIIIZI_F(JNIEnv *env, jclass, jlong paintHandle, |
| jlong typefaceHandle, jcharArray text, jint start, jint end, jint contextStart, |
| jint contextEnd, jboolean isRtl, jint offset) { |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| // TODO performance: optimize JNI array access |
| jchar* textArray = env->GetCharArrayElements(text, NULL); |
| jfloat result = doRunAdvance(paint, typeface, textArray + contextStart, |
| start - contextStart, end - start, contextEnd - contextStart, isRtl, offset); |
| env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); |
| return result; |
| } |
| |
| static jint doOffsetForAdvance(const Paint* paint, TypefaceImpl* typeface, const jchar buf[], |
| jint start, jint count, jint bufSize, jboolean isRtl, jfloat advance) { |
| Layout layout; |
| int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR; |
| MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, buf, start, count, bufSize); |
| return getOffsetForAdvance(layout, buf, start, count, advance); |
| } |
| static jint getOffsetForAdvance___CIIIIZF_I(JNIEnv *env, jclass, jlong paintHandle, |
| jlong typefaceHandle, jcharArray text, jint start, jint end, jint contextStart, |
| jint contextEnd, jboolean isRtl, jfloat advance) { |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); |
| // TODO performance: optimize JNI array access |
| jchar* textArray = env->GetCharArrayElements(text, NULL); |
| jint result = doOffsetForAdvance(paint, typeface, textArray + contextStart, |
| start - contextStart, end - start, contextEnd - contextStart, isRtl, advance); |
| result += contextStart; |
| env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); |
| return result; |
| } |
| |
| }; |
| |
| static JNINativeMethod methods[] = { |
| {"finalizer", "(J)V", (void*) PaintGlue::finalizer}, |
| {"native_init","()J", (void*) PaintGlue::init}, |
| {"native_initWithPaint","(J)J", (void*) PaintGlue::initWithPaint}, |
| |
| {"native_reset","!(J)V", (void*) PaintGlue::reset}, |
| {"native_set","!(JJ)V", (void*) PaintGlue::assign}, |
| {"getFlags","!()I", (void*) PaintGlue::getFlags}, |
| {"setFlags","!(I)V", (void*) PaintGlue::setFlags}, |
| {"getHinting","!()I", (void*) PaintGlue::getHinting}, |
| {"setHinting","!(I)V", (void*) PaintGlue::setHinting}, |
| {"setAntiAlias","!(Z)V", (void*) PaintGlue::setAntiAlias}, |
| {"setSubpixelText","!(Z)V", (void*) PaintGlue::setSubpixelText}, |
| {"setLinearText","!(Z)V", (void*) PaintGlue::setLinearText}, |
| {"setUnderlineText","!(Z)V", (void*) PaintGlue::setUnderlineText}, |
| {"setStrikeThruText","!(Z)V", (void*) PaintGlue::setStrikeThruText}, |
| {"setFakeBoldText","!(Z)V", (void*) PaintGlue::setFakeBoldText}, |
| {"setFilterBitmap","!(Z)V", (void*) PaintGlue::setFilterBitmap}, |
| {"setDither","!(Z)V", (void*) PaintGlue::setDither}, |
| {"native_getStyle","!(J)I", (void*) PaintGlue::getStyle}, |
| {"native_setStyle","!(JI)V", (void*) PaintGlue::setStyle}, |
| {"getColor","!()I", (void*) PaintGlue::getColor}, |
| {"setColor","!(I)V", (void*) PaintGlue::setColor}, |
| {"getAlpha","!()I", (void*) PaintGlue::getAlpha}, |
| {"setAlpha","!(I)V", (void*) PaintGlue::setAlpha}, |
| {"getStrokeWidth","!()F", (void*) PaintGlue::getStrokeWidth}, |
| {"setStrokeWidth","!(F)V", (void*) PaintGlue::setStrokeWidth}, |
| {"getStrokeMiter","!()F", (void*) PaintGlue::getStrokeMiter}, |
| {"setStrokeMiter","!(F)V", (void*) PaintGlue::setStrokeMiter}, |
| {"native_getStrokeCap","!(J)I", (void*) PaintGlue::getStrokeCap}, |
| {"native_setStrokeCap","!(JI)V", (void*) PaintGlue::setStrokeCap}, |
| {"native_getStrokeJoin","!(J)I", (void*) PaintGlue::getStrokeJoin}, |
| {"native_setStrokeJoin","!(JI)V", (void*) PaintGlue::setStrokeJoin}, |
| {"native_getFillPath","!(JJJ)Z", (void*) PaintGlue::getFillPath}, |
| {"native_setShader","!(JJ)J", (void*) PaintGlue::setShader}, |
| {"native_setColorFilter","!(JJ)J", (void*) PaintGlue::setColorFilter}, |
| {"native_setXfermode","!(JJ)J", (void*) PaintGlue::setXfermode}, |
| {"native_setPathEffect","!(JJ)J", (void*) PaintGlue::setPathEffect}, |
| {"native_setMaskFilter","!(JJ)J", (void*) PaintGlue::setMaskFilter}, |
| {"native_setTypeface","!(JJ)J", (void*) PaintGlue::setTypeface}, |
| {"native_setRasterizer","!(JJ)J", (void*) PaintGlue::setRasterizer}, |
| {"native_getTextAlign","!(J)I", (void*) PaintGlue::getTextAlign}, |
| {"native_setTextAlign","!(JI)V", (void*) PaintGlue::setTextAlign}, |
| {"native_setTextLocale","!(JLjava/lang/String;)V", (void*) PaintGlue::setTextLocale}, |
| {"isElegantTextHeight","!()Z", (void*) PaintGlue::isElegantTextHeight}, |
| {"setElegantTextHeight","!(Z)V", (void*) PaintGlue::setElegantTextHeight}, |
| {"getTextSize","!()F", (void*) PaintGlue::getTextSize}, |
| {"setTextSize","!(F)V", (void*) PaintGlue::setTextSize}, |
| {"getTextScaleX","!()F", (void*) PaintGlue::getTextScaleX}, |
| {"setTextScaleX","!(F)V", (void*) PaintGlue::setTextScaleX}, |
| {"getTextSkewX","!()F", (void*) PaintGlue::getTextSkewX}, |
| {"setTextSkewX","!(F)V", (void*) PaintGlue::setTextSkewX}, |
| {"native_getLetterSpacing","!(J)F", (void*) PaintGlue::getLetterSpacing}, |
| {"native_setLetterSpacing","!(JF)V", (void*) PaintGlue::setLetterSpacing}, |
| {"native_setFontFeatureSettings","(JLjava/lang/String;)V", |
| (void*) PaintGlue::setFontFeatureSettings}, |
| {"native_getHyphenEdit", "!(J)I", (void*) PaintGlue::getHyphenEdit}, |
| {"native_setHyphenEdit", "!(JI)V", (void*) PaintGlue::setHyphenEdit}, |
| {"ascent","!()F", (void*) PaintGlue::ascent}, |
| {"descent","!()F", (void*) PaintGlue::descent}, |
| |
| {"getFontMetrics", "(Landroid/graphics/Paint$FontMetrics;)F", |
| (void*)PaintGlue::getFontMetrics}, |
| {"getFontMetricsInt", "(Landroid/graphics/Paint$FontMetricsInt;)I", |
| (void*)PaintGlue::getFontMetricsInt}, |
| {"native_measureText","([CIII)F", (void*) PaintGlue::measureText_CIII}, |
| {"native_measureText","(Ljava/lang/String;I)F", (void*) PaintGlue::measureText_StringI}, |
| {"native_measureText","(Ljava/lang/String;III)F", (void*) PaintGlue::measureText_StringIII}, |
| {"native_breakText","(JJ[CIIFI[F)I", (void*) PaintGlue::breakTextC}, |
| {"native_breakText","(JJLjava/lang/String;ZFI[F)I", (void*) PaintGlue::breakTextS}, |
| {"native_getTextWidths","(JJ[CIII[F)I", (void*) PaintGlue::getTextWidths___CIII_F}, |
| {"native_getTextWidths","(JJLjava/lang/String;III[F)I", |
| (void*) PaintGlue::getTextWidths__StringIII_F}, |
| {"native_getTextRunAdvances","(JJ[CIIIIZ[FI)F", |
| (void*) PaintGlue::getTextRunAdvances___CIIIIZ_FI}, |
| {"native_getTextRunAdvances","(JJLjava/lang/String;IIIIZ[FI)F", |
| (void*) PaintGlue::getTextRunAdvances__StringIIIIZ_FI}, |
| |
| {"native_getTextRunCursor", "(J[CIIIII)I", (void*) PaintGlue::getTextRunCursor___C}, |
| {"native_getTextRunCursor", "(JLjava/lang/String;IIIII)I", |
| (void*) PaintGlue::getTextRunCursor__String}, |
| {"native_getTextPath", "(JJI[CIIFFJ)V", (void*) PaintGlue::getTextPath___C}, |
| {"native_getTextPath", "(JJILjava/lang/String;IIFFJ)V", (void*) PaintGlue::getTextPath__String}, |
| {"nativeGetStringBounds", "(JJLjava/lang/String;IIILandroid/graphics/Rect;)V", |
| (void*) PaintGlue::getStringBounds }, |
| {"nativeGetCharArrayBounds", "(JJ[CIIILandroid/graphics/Rect;)V", |
| (void*) PaintGlue::getCharArrayBounds }, |
| {"native_hasGlyph", "(JJILjava/lang/String;)Z", (void*) PaintGlue::hasGlyph }, |
| {"native_getRunAdvance", "(JJ[CIIIIZI)F", (void*) PaintGlue::getRunAdvance___CIIIIZI_F}, |
| {"native_getOffsetForAdvance", "(JJ[CIIIIZF)I", |
| (void*) PaintGlue::getOffsetForAdvance___CIIIIZF_I}, |
| |
| {"native_setShadowLayer", "!(JFFFI)V", (void*)PaintGlue::setShadowLayer}, |
| {"native_hasShadowLayer", "!(J)Z", (void*)PaintGlue::hasShadowLayer} |
| }; |
| |
| int register_android_graphics_Paint(JNIEnv* env) { |
| gFontMetrics_class = FindClassOrDie(env, "android/graphics/Paint$FontMetrics"); |
| gFontMetrics_class = MakeGlobalRefOrDie(env, gFontMetrics_class); |
| |
| gFontMetrics_fieldID.top = GetFieldIDOrDie(env, gFontMetrics_class, "top", "F"); |
| gFontMetrics_fieldID.ascent = GetFieldIDOrDie(env, gFontMetrics_class, "ascent", "F"); |
| gFontMetrics_fieldID.descent = GetFieldIDOrDie(env, gFontMetrics_class, "descent", "F"); |
| gFontMetrics_fieldID.bottom = GetFieldIDOrDie(env, gFontMetrics_class, "bottom", "F"); |
| gFontMetrics_fieldID.leading = GetFieldIDOrDie(env, gFontMetrics_class, "leading", "F"); |
| |
| gFontMetricsInt_class = FindClassOrDie(env, "android/graphics/Paint$FontMetricsInt"); |
| gFontMetricsInt_class = MakeGlobalRefOrDie(env, gFontMetricsInt_class); |
| |
| gFontMetricsInt_fieldID.top = GetFieldIDOrDie(env, gFontMetricsInt_class, "top", "I"); |
| gFontMetricsInt_fieldID.ascent = GetFieldIDOrDie(env, gFontMetricsInt_class, "ascent", "I"); |
| gFontMetricsInt_fieldID.descent = GetFieldIDOrDie(env, gFontMetricsInt_class, "descent", "I"); |
| gFontMetricsInt_fieldID.bottom = GetFieldIDOrDie(env, gFontMetricsInt_class, "bottom", "I"); |
| gFontMetricsInt_fieldID.leading = GetFieldIDOrDie(env, gFontMetricsInt_class, "leading", "I"); |
| |
| gPaint_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Paint")); |
| gPaint_nativeInstanceID = GetFieldIDOrDie(env, gPaint_class, "mNativePaint", "J"); |
| gPaint_nativeTypefaceID = GetFieldIDOrDie(env, gPaint_class, "mNativeTypeface", "J"); |
| |
| return RegisterMethodsOrDie(env, "android/graphics/Paint", methods, NELEM(methods)); |
| } |
| |
| } |