1 /* 2 * Copyright 2009 The Android Open Source Project 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "SkFontLCDConfig.h" 9 10 static SkFontLCDConfig::LCDOrientation gLCDOrientation = SkFontLCDConfig::kHorizontal_LCDOrientation; 11 static SkFontLCDConfig::LCDOrder gLCDOrder = SkFontLCDConfig::kRGB_LCDOrder; 12 13 SkFontLCDConfig::LCDOrientation SkFontLCDConfig::GetSubpixelOrientation() { 14 return gLCDOrientation; 15 } 16 17 void SkFontLCDConfig::SetSubpixelOrientation(LCDOrientation orientation) { 18 gLCDOrientation = orientation; 19 } 20 21 SkFontLCDConfig::LCDOrder SkFontLCDConfig::GetSubpixelOrder() { 22 return gLCDOrder; 23 } 24 25 void SkFontLCDConfig::SetSubpixelOrder(LCDOrder order) { 26 gLCDOrder = order; 27 } 28 29 /////////////////////////////////////////////////////////////////////////////// 30 // Legacy wrappers : remove from SkFontHost when webkit switches to new API 31 32 #include "SkFontHost.h" 33 34 SkFontHost::LCDOrientation SkFontHost::GetSubpixelOrientation() { 35 return (SkFontHost::LCDOrientation)SkFontLCDConfig::GetSubpixelOrientation(); 36 } 37 38 void SkFontHost::SetSubpixelOrientation(LCDOrientation orientation) { 39 SkFontLCDConfig::SetSubpixelOrientation((SkFontLCDConfig::LCDOrientation)orientation); 40 } 41 42 SkFontHost::LCDOrder SkFontHost::GetSubpixelOrder() { 43 return (SkFontHost::LCDOrder)SkFontLCDConfig::GetSubpixelOrder(); 44 } 45 46 void SkFontHost::SetSubpixelOrder(LCDOrder order) { 47 SkFontLCDConfig::SetSubpixelOrder((SkFontLCDConfig::LCDOrder)order); 48 } 49 50 /////////////////////////////////////////////////////////////////////////////// 51 /////////////////////////////////////////////////////////////////////////////// 52 53 #include "SkFontStyle.h" 54 55 SkFontStyle::SkFontStyle() { 56 fUnion.fU32 = 0; 57 fUnion.fR.fWeight = kNormal_Weight; 58 fUnion.fR.fWidth = kNormal_Width; 59 fUnion.fR.fSlant = kUpright_Slant; 60 } 61 62 SkFontStyle::SkFontStyle(int weight, int width, Slant slant) { 63 fUnion.fU32 = 0; 64 fUnion.fR.fWeight = SkPin32(weight, kThin_Weight, kBlack_Weight); 65 fUnion.fR.fWidth = SkPin32(width, kUltraCondensed_Width, kUltaExpanded_Width); 66 fUnion.fR.fSlant = SkPin32(slant, kUpright_Slant, kItalic_Slant); 67 } 68 69 #include "SkFontMgr.h" 70 71 SK_DEFINE_INST_COUNT(SkFontStyleSet) 72 73 class SkEmptyFontStyleSet : public SkFontStyleSet { 74 public: 75 virtual int count() SK_OVERRIDE { return 0; } 76 virtual void getStyle(int, SkFontStyle*, SkString*) SK_OVERRIDE { 77 SkASSERT(!"SkFontStyleSet::getStyle called on empty set"); 78 } 79 virtual SkTypeface* createTypeface(int index) SK_OVERRIDE { 80 SkASSERT(!"SkFontStyleSet::createTypeface called on empty set"); 81 return NULL; 82 } 83 virtual SkTypeface* matchStyle(const SkFontStyle&) SK_OVERRIDE { 84 return NULL; 85 } 86 }; 87 88 SkFontStyleSet* SkFontStyleSet::CreateEmpty() { 89 return SkNEW(SkEmptyFontStyleSet); 90 } 91 92 /////////////////////////////////////////////////////////////////////////////// 93 94 SK_DEFINE_INST_COUNT(SkFontMgr) 95 96 class SkEmptyFontMgr : public SkFontMgr { 97 protected: 98 virtual int onCountFamilies() SK_OVERRIDE { 99 return 0; 100 } 101 virtual void onGetFamilyName(int index, SkString* familyName) SK_OVERRIDE { 102 SkASSERT(!"onGetFamilyName called with bad index"); 103 } 104 virtual SkFontStyleSet* onCreateStyleSet(int index) SK_OVERRIDE { 105 SkASSERT(!"onCreateStyleSet called with bad index"); 106 return NULL; 107 } 108 virtual SkFontStyleSet* onMatchFamily(const char[]) SK_OVERRIDE { 109 return SkFontStyleSet::CreateEmpty(); 110 } 111 112 virtual SkTypeface* onMatchFamilyStyle(const char[], 113 const SkFontStyle&) SK_OVERRIDE { 114 return NULL; 115 } 116 virtual SkTypeface* onMatchFaceStyle(const SkTypeface*, 117 const SkFontStyle&) SK_OVERRIDE { 118 return NULL; 119 } 120 virtual SkTypeface* onCreateFromData(SkData*, int) SK_OVERRIDE { 121 return NULL; 122 } 123 virtual SkTypeface* onCreateFromStream(SkStream*, int) SK_OVERRIDE { 124 return NULL; 125 } 126 virtual SkTypeface* onCreateFromFile(const char[], int) SK_OVERRIDE { 127 return NULL; 128 } 129 }; 130 131 static SkFontStyleSet* emptyOnNull(SkFontStyleSet* fsset) { 132 if (NULL == fsset) { 133 fsset = SkFontStyleSet::CreateEmpty(); 134 } 135 return fsset; 136 } 137 138 int SkFontMgr::countFamilies() { 139 return this->onCountFamilies(); 140 } 141 142 void SkFontMgr::getFamilyName(int index, SkString* familyName) { 143 this->onGetFamilyName(index, familyName); 144 } 145 146 SkFontStyleSet* SkFontMgr::createStyleSet(int index) { 147 return emptyOnNull(this->onCreateStyleSet(index)); 148 } 149 150 SkFontStyleSet* SkFontMgr::matchFamily(const char familyName[]) { 151 return emptyOnNull(this->onMatchFamily(familyName)); 152 } 153 154 SkTypeface* SkFontMgr::matchFamilyStyle(const char familyName[], 155 const SkFontStyle& fs) { 156 return this->onMatchFamilyStyle(familyName, fs); 157 } 158 159 SkTypeface* SkFontMgr::matchFaceStyle(const SkTypeface* face, 160 const SkFontStyle& fs) { 161 return this->onMatchFaceStyle(face, fs); 162 } 163 164 SkTypeface* SkFontMgr::createFromData(SkData* data, int ttcIndex) { 165 if (NULL == data) { 166 return NULL; 167 } 168 return this->onCreateFromData(data, ttcIndex); 169 } 170 171 SkTypeface* SkFontMgr::createFromStream(SkStream* stream, int ttcIndex) { 172 if (NULL == stream) { 173 return NULL; 174 } 175 return this->onCreateFromStream(stream, ttcIndex); 176 } 177 178 SkTypeface* SkFontMgr::createFromFile(const char path[], int ttcIndex) { 179 if (NULL == path) { 180 return NULL; 181 } 182 return this->onCreateFromFile(path, ttcIndex); 183 } 184 185 SkTypeface* SkFontMgr::legacyCreateTypeface(const char familyName[], 186 unsigned styleBits) { 187 return this->onLegacyCreateTypeface(familyName, styleBits); 188 } 189 190 SkTypeface* SkFontMgr::onLegacyCreateTypeface(const char familyName[], 191 unsigned styleBits) { 192 SkASSERT(!"unimplemented"); 193 return NULL; 194 } 195 196 SkFontMgr* SkFontMgr::RefDefault() { 197 static SkFontMgr* gFM; 198 if (NULL == gFM) { 199 gFM = SkFontMgr::Factory(); 200 // we never want to return NULL 201 if (NULL == gFM) { 202 gFM = SkNEW(SkEmptyFontMgr); 203 } 204 } 205 return SkRef(gFM); 206 } 207 208 ////////////////////////////////////////////////////////////////////////// 209 210 #ifdef SK_FONTHOST_USES_FONTMGR 211 212 #if 0 213 static SkFontStyle TypefaceStyleBitsToFontStyle(SkTypeface::Style styleBits) { 214 SkFontStyle::Weight weight = (styleBits & SkTypeface::kBold) ? 215 SkFontStyle::kBold_Weight : 216 SkFontStyle::kNormal_Weight; 217 SkFontStyle::Width width = SkFontStyle::kNormal_Width; 218 SkFontStyle::Slant slant = (styleBits & SkTypeface::kItalic) ? 219 SkFontStyle::kUpright_Slant : 220 SkFontStyle::kItalic_Slant; 221 return SkFontStyle(weight, width, slant); 222 } 223 #endif 224 225 SkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 226 const char familyName[], 227 SkTypeface::Style style) { 228 if (familyFace) { 229 return familyFace->refMatchingStyle(style); 230 } else { 231 SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault()); 232 return fm->legacyCreateTypeface(familyName, style); 233 } 234 } 235 236 SkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 237 SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault()); 238 return fm->createFromFile(path); 239 } 240 241 SkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 242 SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault()); 243 return fm->createFromStream(stream); 244 } 245 246 #endif 247
