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