michael@0: /*
michael@0:  * Copyright 2009 The Android Open Source Project
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: #include "SkFontLCDConfig.h"
michael@0: #include "SkOnce.h"
michael@0: 
michael@0: static SkFontLCDConfig::LCDOrientation gLCDOrientation = SkFontLCDConfig::kHorizontal_LCDOrientation;
michael@0: static SkFontLCDConfig::LCDOrder gLCDOrder = SkFontLCDConfig::kRGB_LCDOrder;
michael@0: 
michael@0: SkFontLCDConfig::LCDOrientation SkFontLCDConfig::GetSubpixelOrientation() {
michael@0:     return gLCDOrientation;
michael@0: }
michael@0: 
michael@0: void SkFontLCDConfig::SetSubpixelOrientation(LCDOrientation orientation) {
michael@0:     gLCDOrientation = orientation;
michael@0: }
michael@0: 
michael@0: SkFontLCDConfig::LCDOrder SkFontLCDConfig::GetSubpixelOrder() {
michael@0:     return gLCDOrder;
michael@0: }
michael@0: 
michael@0: void SkFontLCDConfig::SetSubpixelOrder(LCDOrder order) {
michael@0:     gLCDOrder = order;
michael@0: }
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////
michael@0: // Legacy wrappers : remove from SkFontHost when webkit switches to new API
michael@0: 
michael@0: #include "SkFontHost.h"
michael@0: 
michael@0: SkFontHost::LCDOrientation SkFontHost::GetSubpixelOrientation() {
michael@0:     return (SkFontHost::LCDOrientation)SkFontLCDConfig::GetSubpixelOrientation();
michael@0: }
michael@0: 
michael@0: void SkFontHost::SetSubpixelOrientation(LCDOrientation orientation) {
michael@0:     SkFontLCDConfig::SetSubpixelOrientation((SkFontLCDConfig::LCDOrientation)orientation);
michael@0: }
michael@0: 
michael@0: SkFontHost::LCDOrder SkFontHost::GetSubpixelOrder() {
michael@0:     return (SkFontHost::LCDOrder)SkFontLCDConfig::GetSubpixelOrder();
michael@0: }
michael@0: 
michael@0: void SkFontHost::SetSubpixelOrder(LCDOrder order) {
michael@0:     SkFontLCDConfig::SetSubpixelOrder((SkFontLCDConfig::LCDOrder)order);
michael@0: }
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////
michael@0: ///////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: #include "SkFontStyle.h"
michael@0: 
michael@0: SkFontStyle::SkFontStyle() {
michael@0:     fUnion.fU32 = 0;
michael@0:     fUnion.fR.fWeight = kNormal_Weight;
michael@0:     fUnion.fR.fWidth = kNormal_Width;
michael@0:     fUnion.fR.fSlant = kUpright_Slant;
michael@0: }
michael@0: 
michael@0: SkFontStyle::SkFontStyle(int weight, int width, Slant slant) {
michael@0:     fUnion.fU32 = 0;
michael@0:     fUnion.fR.fWeight = SkPin32(weight, kThin_Weight, kBlack_Weight);
michael@0:     fUnion.fR.fWidth = SkPin32(width, kUltraCondensed_Width, kUltaExpanded_Width);
michael@0:     fUnion.fR.fSlant = SkPin32(slant, kUpright_Slant, kItalic_Slant);
michael@0: }
michael@0: 
michael@0: #include "SkFontMgr.h"
michael@0: 
michael@0: class SkEmptyFontStyleSet : public SkFontStyleSet {
michael@0: public:
michael@0:     virtual int count() SK_OVERRIDE { return 0; }
michael@0:     virtual void getStyle(int, SkFontStyle*, SkString*) SK_OVERRIDE {
michael@0:         SkDEBUGFAIL("SkFontStyleSet::getStyle called on empty set");
michael@0:     }
michael@0:     virtual SkTypeface* createTypeface(int index) SK_OVERRIDE {
michael@0:         SkDEBUGFAIL("SkFontStyleSet::createTypeface called on empty set");
michael@0:         return NULL;
michael@0:     }
michael@0:     virtual SkTypeface* matchStyle(const SkFontStyle&) SK_OVERRIDE {
michael@0:         return NULL;
michael@0:     }
michael@0: };
michael@0: 
michael@0: SkFontStyleSet* SkFontStyleSet::CreateEmpty() {
michael@0:     return SkNEW(SkEmptyFontStyleSet);
michael@0: }
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: class SkEmptyFontMgr : public SkFontMgr {
michael@0: protected:
michael@0:     virtual int onCountFamilies() const SK_OVERRIDE {
michael@0:         return 0;
michael@0:     }
michael@0:     virtual void onGetFamilyName(int index, SkString* familyName) const SK_OVERRIDE {
michael@0:         SkDEBUGFAIL("onGetFamilyName called with bad index");
michael@0:     }
michael@0:     virtual SkFontStyleSet* onCreateStyleSet(int index) const SK_OVERRIDE {
michael@0:         SkDEBUGFAIL("onCreateStyleSet called with bad index");
michael@0:         return NULL;
michael@0:     }
michael@0:     virtual SkFontStyleSet* onMatchFamily(const char[]) const SK_OVERRIDE {
michael@0:         return SkFontStyleSet::CreateEmpty();
michael@0:     }
michael@0: 
michael@0:     virtual SkTypeface* onMatchFamilyStyle(const char[],
michael@0:                                            const SkFontStyle&) const SK_OVERRIDE {
michael@0:         return NULL;
michael@0:     }
michael@0:     virtual SkTypeface* onMatchFaceStyle(const SkTypeface*,
michael@0:                                          const SkFontStyle&) const SK_OVERRIDE {
michael@0:         return NULL;
michael@0:     }
michael@0:     virtual SkTypeface* onCreateFromData(SkData*, int) const SK_OVERRIDE {
michael@0:         return NULL;
michael@0:     }
michael@0:     virtual SkTypeface* onCreateFromStream(SkStream*, int) const SK_OVERRIDE {
michael@0:         return NULL;
michael@0:     }
michael@0:     virtual SkTypeface* onCreateFromFile(const char[], int) const SK_OVERRIDE {
michael@0:         return NULL;
michael@0:     }
michael@0:     virtual SkTypeface* onLegacyCreateTypeface(const char [], unsigned) const SK_OVERRIDE {
michael@0:         return NULL;
michael@0:     }
michael@0: };
michael@0: 
michael@0: static SkFontStyleSet* emptyOnNull(SkFontStyleSet* fsset) {
michael@0:     if (NULL == fsset) {
michael@0:         fsset = SkFontStyleSet::CreateEmpty();
michael@0:     }
michael@0:     return fsset;
michael@0: }
michael@0: 
michael@0: int SkFontMgr::countFamilies() const {
michael@0:     return this->onCountFamilies();
michael@0: }
michael@0: 
michael@0: void SkFontMgr::getFamilyName(int index, SkString* familyName) const {
michael@0:     this->onGetFamilyName(index, familyName);
michael@0: }
michael@0: 
michael@0: SkFontStyleSet* SkFontMgr::createStyleSet(int index) const {
michael@0:     return emptyOnNull(this->onCreateStyleSet(index));
michael@0: }
michael@0: 
michael@0: SkFontStyleSet* SkFontMgr::matchFamily(const char familyName[]) const {
michael@0:     return emptyOnNull(this->onMatchFamily(familyName));
michael@0: }
michael@0: 
michael@0: SkTypeface* SkFontMgr::matchFamilyStyle(const char familyName[],
michael@0:                                         const SkFontStyle& fs) const {
michael@0:     return this->onMatchFamilyStyle(familyName, fs);
michael@0: }
michael@0: 
michael@0: SkTypeface* SkFontMgr::matchFaceStyle(const SkTypeface* face,
michael@0:                                       const SkFontStyle& fs) const {
michael@0:     return this->onMatchFaceStyle(face, fs);
michael@0: }
michael@0: 
michael@0: SkTypeface* SkFontMgr::createFromData(SkData* data, int ttcIndex) const {
michael@0:     if (NULL == data) {
michael@0:         return NULL;
michael@0:     }
michael@0:     return this->onCreateFromData(data, ttcIndex);
michael@0: }
michael@0: 
michael@0: SkTypeface* SkFontMgr::createFromStream(SkStream* stream, int ttcIndex) const {
michael@0:     if (NULL == stream) {
michael@0:         return NULL;
michael@0:     }
michael@0:     return this->onCreateFromStream(stream, ttcIndex);
michael@0: }
michael@0: 
michael@0: SkTypeface* SkFontMgr::createFromFile(const char path[], int ttcIndex) const {
michael@0:     if (NULL == path) {
michael@0:         return NULL;
michael@0:     }
michael@0:     return this->onCreateFromFile(path, ttcIndex);
michael@0: }
michael@0: 
michael@0: SkTypeface* SkFontMgr::legacyCreateTypeface(const char familyName[],
michael@0:                                             unsigned styleBits) const {
michael@0:     return this->onLegacyCreateTypeface(familyName, styleBits);
michael@0: }
michael@0: 
michael@0: void set_up_default(SkFontMgr** singleton) {
michael@0:   *singleton = SkFontMgr::Factory();
michael@0:   // we never want to return NULL
michael@0:   if (NULL == *singleton) {
michael@0:       *singleton = SkNEW(SkEmptyFontMgr);
michael@0:   }
michael@0: }
michael@0: 
michael@0: SkFontMgr* SkFontMgr::RefDefault() {
michael@0:     static SkFontMgr* gFM = NULL;
michael@0:     SK_DECLARE_STATIC_ONCE(once);
michael@0:     SkOnce(&once, set_up_default, &gFM);
michael@0:     return SkRef(gFM);
michael@0: }
michael@0: 
michael@0: //////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: #ifndef SK_FONTHOST_DOES_NOT_USE_FONTMGR
michael@0: 
michael@0: #if 0
michael@0: static SkFontStyle TypefaceStyleBitsToFontStyle(SkTypeface::Style styleBits) {
michael@0:     SkFontStyle::Weight weight = (styleBits & SkTypeface::kBold) ?
michael@0:                                      SkFontStyle::kBold_Weight :
michael@0:                                      SkFontStyle::kNormal_Weight;
michael@0:     SkFontStyle::Width width = SkFontStyle::kNormal_Width;
michael@0:     SkFontStyle::Slant slant = (styleBits & SkTypeface::kItalic) ?
michael@0:                                      SkFontStyle::kUpright_Slant :
michael@0:                                      SkFontStyle::kItalic_Slant;
michael@0:     return SkFontStyle(weight, width, slant);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: SkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace,
michael@0:                                        const char familyName[],
michael@0:                                        SkTypeface::Style style) {
michael@0:     SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
michael@0:     if (familyFace) {
michael@0:         bool bold = style & SkTypeface::kBold;
michael@0:         bool italic = style & SkTypeface::kItalic;
michael@0:         SkFontStyle newStyle = SkFontStyle(bold ? SkFontStyle::kBold_Weight
michael@0:                                                 : SkFontStyle::kNormal_Weight,
michael@0:                                            SkFontStyle::kNormal_Width,
michael@0:                                            italic ? SkFontStyle::kItalic_Slant
michael@0:                                                   : SkFontStyle::kUpright_Slant);
michael@0:         return fm->matchFaceStyle(familyFace, newStyle);
michael@0:     } else {
michael@0:         return fm->legacyCreateTypeface(familyName, style);
michael@0:     }
michael@0: }
michael@0: 
michael@0: SkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) {
michael@0:     SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
michael@0:     return fm->createFromFile(path);
michael@0: }
michael@0: 
michael@0: SkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) {
michael@0:     SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
michael@0:     return fm->createFromStream(stream);
michael@0: }
michael@0: 
michael@0: #endif