1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/core/SkFontHost.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,250 @@
1.4 +/*
1.5 + * Copyright 2009 The Android Open Source Project
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license that can be
1.8 + * found in the LICENSE file.
1.9 + */
1.10 +
1.11 +#include "SkFontLCDConfig.h"
1.12 +#include "SkOnce.h"
1.13 +
1.14 +static SkFontLCDConfig::LCDOrientation gLCDOrientation = SkFontLCDConfig::kHorizontal_LCDOrientation;
1.15 +static SkFontLCDConfig::LCDOrder gLCDOrder = SkFontLCDConfig::kRGB_LCDOrder;
1.16 +
1.17 +SkFontLCDConfig::LCDOrientation SkFontLCDConfig::GetSubpixelOrientation() {
1.18 + return gLCDOrientation;
1.19 +}
1.20 +
1.21 +void SkFontLCDConfig::SetSubpixelOrientation(LCDOrientation orientation) {
1.22 + gLCDOrientation = orientation;
1.23 +}
1.24 +
1.25 +SkFontLCDConfig::LCDOrder SkFontLCDConfig::GetSubpixelOrder() {
1.26 + return gLCDOrder;
1.27 +}
1.28 +
1.29 +void SkFontLCDConfig::SetSubpixelOrder(LCDOrder order) {
1.30 + gLCDOrder = order;
1.31 +}
1.32 +
1.33 +///////////////////////////////////////////////////////////////////////////////
1.34 +// Legacy wrappers : remove from SkFontHost when webkit switches to new API
1.35 +
1.36 +#include "SkFontHost.h"
1.37 +
1.38 +SkFontHost::LCDOrientation SkFontHost::GetSubpixelOrientation() {
1.39 + return (SkFontHost::LCDOrientation)SkFontLCDConfig::GetSubpixelOrientation();
1.40 +}
1.41 +
1.42 +void SkFontHost::SetSubpixelOrientation(LCDOrientation orientation) {
1.43 + SkFontLCDConfig::SetSubpixelOrientation((SkFontLCDConfig::LCDOrientation)orientation);
1.44 +}
1.45 +
1.46 +SkFontHost::LCDOrder SkFontHost::GetSubpixelOrder() {
1.47 + return (SkFontHost::LCDOrder)SkFontLCDConfig::GetSubpixelOrder();
1.48 +}
1.49 +
1.50 +void SkFontHost::SetSubpixelOrder(LCDOrder order) {
1.51 + SkFontLCDConfig::SetSubpixelOrder((SkFontLCDConfig::LCDOrder)order);
1.52 +}
1.53 +
1.54 +///////////////////////////////////////////////////////////////////////////////
1.55 +///////////////////////////////////////////////////////////////////////////////
1.56 +
1.57 +#include "SkFontStyle.h"
1.58 +
1.59 +SkFontStyle::SkFontStyle() {
1.60 + fUnion.fU32 = 0;
1.61 + fUnion.fR.fWeight = kNormal_Weight;
1.62 + fUnion.fR.fWidth = kNormal_Width;
1.63 + fUnion.fR.fSlant = kUpright_Slant;
1.64 +}
1.65 +
1.66 +SkFontStyle::SkFontStyle(int weight, int width, Slant slant) {
1.67 + fUnion.fU32 = 0;
1.68 + fUnion.fR.fWeight = SkPin32(weight, kThin_Weight, kBlack_Weight);
1.69 + fUnion.fR.fWidth = SkPin32(width, kUltraCondensed_Width, kUltaExpanded_Width);
1.70 + fUnion.fR.fSlant = SkPin32(slant, kUpright_Slant, kItalic_Slant);
1.71 +}
1.72 +
1.73 +#include "SkFontMgr.h"
1.74 +
1.75 +class SkEmptyFontStyleSet : public SkFontStyleSet {
1.76 +public:
1.77 + virtual int count() SK_OVERRIDE { return 0; }
1.78 + virtual void getStyle(int, SkFontStyle*, SkString*) SK_OVERRIDE {
1.79 + SkDEBUGFAIL("SkFontStyleSet::getStyle called on empty set");
1.80 + }
1.81 + virtual SkTypeface* createTypeface(int index) SK_OVERRIDE {
1.82 + SkDEBUGFAIL("SkFontStyleSet::createTypeface called on empty set");
1.83 + return NULL;
1.84 + }
1.85 + virtual SkTypeface* matchStyle(const SkFontStyle&) SK_OVERRIDE {
1.86 + return NULL;
1.87 + }
1.88 +};
1.89 +
1.90 +SkFontStyleSet* SkFontStyleSet::CreateEmpty() {
1.91 + return SkNEW(SkEmptyFontStyleSet);
1.92 +}
1.93 +
1.94 +///////////////////////////////////////////////////////////////////////////////
1.95 +
1.96 +class SkEmptyFontMgr : public SkFontMgr {
1.97 +protected:
1.98 + virtual int onCountFamilies() const SK_OVERRIDE {
1.99 + return 0;
1.100 + }
1.101 + virtual void onGetFamilyName(int index, SkString* familyName) const SK_OVERRIDE {
1.102 + SkDEBUGFAIL("onGetFamilyName called with bad index");
1.103 + }
1.104 + virtual SkFontStyleSet* onCreateStyleSet(int index) const SK_OVERRIDE {
1.105 + SkDEBUGFAIL("onCreateStyleSet called with bad index");
1.106 + return NULL;
1.107 + }
1.108 + virtual SkFontStyleSet* onMatchFamily(const char[]) const SK_OVERRIDE {
1.109 + return SkFontStyleSet::CreateEmpty();
1.110 + }
1.111 +
1.112 + virtual SkTypeface* onMatchFamilyStyle(const char[],
1.113 + const SkFontStyle&) const SK_OVERRIDE {
1.114 + return NULL;
1.115 + }
1.116 + virtual SkTypeface* onMatchFaceStyle(const SkTypeface*,
1.117 + const SkFontStyle&) const SK_OVERRIDE {
1.118 + return NULL;
1.119 + }
1.120 + virtual SkTypeface* onCreateFromData(SkData*, int) const SK_OVERRIDE {
1.121 + return NULL;
1.122 + }
1.123 + virtual SkTypeface* onCreateFromStream(SkStream*, int) const SK_OVERRIDE {
1.124 + return NULL;
1.125 + }
1.126 + virtual SkTypeface* onCreateFromFile(const char[], int) const SK_OVERRIDE {
1.127 + return NULL;
1.128 + }
1.129 + virtual SkTypeface* onLegacyCreateTypeface(const char [], unsigned) const SK_OVERRIDE {
1.130 + return NULL;
1.131 + }
1.132 +};
1.133 +
1.134 +static SkFontStyleSet* emptyOnNull(SkFontStyleSet* fsset) {
1.135 + if (NULL == fsset) {
1.136 + fsset = SkFontStyleSet::CreateEmpty();
1.137 + }
1.138 + return fsset;
1.139 +}
1.140 +
1.141 +int SkFontMgr::countFamilies() const {
1.142 + return this->onCountFamilies();
1.143 +}
1.144 +
1.145 +void SkFontMgr::getFamilyName(int index, SkString* familyName) const {
1.146 + this->onGetFamilyName(index, familyName);
1.147 +}
1.148 +
1.149 +SkFontStyleSet* SkFontMgr::createStyleSet(int index) const {
1.150 + return emptyOnNull(this->onCreateStyleSet(index));
1.151 +}
1.152 +
1.153 +SkFontStyleSet* SkFontMgr::matchFamily(const char familyName[]) const {
1.154 + return emptyOnNull(this->onMatchFamily(familyName));
1.155 +}
1.156 +
1.157 +SkTypeface* SkFontMgr::matchFamilyStyle(const char familyName[],
1.158 + const SkFontStyle& fs) const {
1.159 + return this->onMatchFamilyStyle(familyName, fs);
1.160 +}
1.161 +
1.162 +SkTypeface* SkFontMgr::matchFaceStyle(const SkTypeface* face,
1.163 + const SkFontStyle& fs) const {
1.164 + return this->onMatchFaceStyle(face, fs);
1.165 +}
1.166 +
1.167 +SkTypeface* SkFontMgr::createFromData(SkData* data, int ttcIndex) const {
1.168 + if (NULL == data) {
1.169 + return NULL;
1.170 + }
1.171 + return this->onCreateFromData(data, ttcIndex);
1.172 +}
1.173 +
1.174 +SkTypeface* SkFontMgr::createFromStream(SkStream* stream, int ttcIndex) const {
1.175 + if (NULL == stream) {
1.176 + return NULL;
1.177 + }
1.178 + return this->onCreateFromStream(stream, ttcIndex);
1.179 +}
1.180 +
1.181 +SkTypeface* SkFontMgr::createFromFile(const char path[], int ttcIndex) const {
1.182 + if (NULL == path) {
1.183 + return NULL;
1.184 + }
1.185 + return this->onCreateFromFile(path, ttcIndex);
1.186 +}
1.187 +
1.188 +SkTypeface* SkFontMgr::legacyCreateTypeface(const char familyName[],
1.189 + unsigned styleBits) const {
1.190 + return this->onLegacyCreateTypeface(familyName, styleBits);
1.191 +}
1.192 +
1.193 +void set_up_default(SkFontMgr** singleton) {
1.194 + *singleton = SkFontMgr::Factory();
1.195 + // we never want to return NULL
1.196 + if (NULL == *singleton) {
1.197 + *singleton = SkNEW(SkEmptyFontMgr);
1.198 + }
1.199 +}
1.200 +
1.201 +SkFontMgr* SkFontMgr::RefDefault() {
1.202 + static SkFontMgr* gFM = NULL;
1.203 + SK_DECLARE_STATIC_ONCE(once);
1.204 + SkOnce(&once, set_up_default, &gFM);
1.205 + return SkRef(gFM);
1.206 +}
1.207 +
1.208 +//////////////////////////////////////////////////////////////////////////
1.209 +
1.210 +#ifndef SK_FONTHOST_DOES_NOT_USE_FONTMGR
1.211 +
1.212 +#if 0
1.213 +static SkFontStyle TypefaceStyleBitsToFontStyle(SkTypeface::Style styleBits) {
1.214 + SkFontStyle::Weight weight = (styleBits & SkTypeface::kBold) ?
1.215 + SkFontStyle::kBold_Weight :
1.216 + SkFontStyle::kNormal_Weight;
1.217 + SkFontStyle::Width width = SkFontStyle::kNormal_Width;
1.218 + SkFontStyle::Slant slant = (styleBits & SkTypeface::kItalic) ?
1.219 + SkFontStyle::kUpright_Slant :
1.220 + SkFontStyle::kItalic_Slant;
1.221 + return SkFontStyle(weight, width, slant);
1.222 +}
1.223 +#endif
1.224 +
1.225 +SkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace,
1.226 + const char familyName[],
1.227 + SkTypeface::Style style) {
1.228 + SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
1.229 + if (familyFace) {
1.230 + bool bold = style & SkTypeface::kBold;
1.231 + bool italic = style & SkTypeface::kItalic;
1.232 + SkFontStyle newStyle = SkFontStyle(bold ? SkFontStyle::kBold_Weight
1.233 + : SkFontStyle::kNormal_Weight,
1.234 + SkFontStyle::kNormal_Width,
1.235 + italic ? SkFontStyle::kItalic_Slant
1.236 + : SkFontStyle::kUpright_Slant);
1.237 + return fm->matchFaceStyle(familyFace, newStyle);
1.238 + } else {
1.239 + return fm->legacyCreateTypeface(familyName, style);
1.240 + }
1.241 +}
1.242 +
1.243 +SkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) {
1.244 + SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
1.245 + return fm->createFromFile(path);
1.246 +}
1.247 +
1.248 +SkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) {
1.249 + SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
1.250 + return fm->createFromStream(stream);
1.251 +}
1.252 +
1.253 +#endif
