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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include <limits>
#include "../../../include/fxge/fx_ge.h"
#include "../../../include/fxge/fx_freetype.h"
#include "text_int.h"
#define GET_TT_SHORT(w) (FX_WORD)(((w)[0] << 8) | (w)[1])
#define GET_TT_LONG(w) (FX_DWORD)(((w)[0] << 24) | ((w)[1] << 16) | ((w)[2] << 8) | (w)[3])
CFX_SubstFont::CFX_SubstFont()
{
m_ExtHandle = NULL;
m_Charset = 0;
m_SubstFlags = 0;
m_Weight = 0;
m_ItalicAngle = 0;
m_bSubstOfCJK = FALSE;
m_WeightCJK = 0;
m_bItlicCJK = FALSE;
}
CTTFontDesc::~CTTFontDesc()
{
if (m_Type == 1) {
if (m_SingleFace.m_pFace) {
FXFT_Done_Face(m_SingleFace.m_pFace);
}
} else if (m_Type == 2) {
for (int i = 0; i < 16; i ++)
if (m_TTCFace.m_pFaces[i]) {
FXFT_Done_Face(m_TTCFace.m_pFaces[i]);
}
}
if (m_pFontData) {
FX_Free(m_pFontData);
}
}
FX_BOOL CTTFontDesc::ReleaseFace(FXFT_Face face)
{
if (m_Type == 1) {
if (m_SingleFace.m_pFace != face) {
return FALSE;
}
} else if (m_Type == 2) {
int i;
for (i = 0; i < 16; i ++)
if (m_TTCFace.m_pFaces[i] == face) {
break;
}
if (i == 16) {
return FALSE;
}
}
m_RefCount --;
if (m_RefCount) {
return FALSE;
}
delete this;
return TRUE;
}
CFX_FontMgr::CFX_FontMgr()
{
m_pBuiltinMapper = new CFX_FontMapper;
m_pBuiltinMapper->m_pFontMgr = this;
m_pExtMapper = NULL;
m_FTLibrary = NULL;
FXSYS_memset32(m_ExternalFonts, 0, sizeof m_ExternalFonts);
}
CFX_FontMgr::~CFX_FontMgr()
{
if (m_pBuiltinMapper) {
delete m_pBuiltinMapper;
}
FreeCache();
if (m_FTLibrary) {
FXFT_Done_FreeType(m_FTLibrary);
}
}
void CFX_FontMgr::InitFTLibrary()
{
if (m_FTLibrary == NULL) {
FXFT_Init_FreeType(&m_FTLibrary);
}
}
void CFX_FontMgr::FreeCache()
{
FX_POSITION pos = m_FaceMap.GetStartPosition();
while(pos) {
CFX_ByteString Key;
CTTFontDesc* face;
m_FaceMap.GetNextAssoc(pos, Key, (void*&)face);
delete face;
}
m_FaceMap.RemoveAll();
}
void CFX_FontMgr::SetSystemFontInfo(IFX_SystemFontInfo* pFontInfo)
{
m_pBuiltinMapper->SetSystemFontInfo(pFontInfo);
}
FXFT_Face CFX_FontMgr::FindSubstFont(const CFX_ByteString& face_name, FX_BOOL bTrueType,
FX_DWORD flags, int weight, int italic_angle, int CharsetCP, CFX_SubstFont* pSubstFont)
{
if (m_FTLibrary == NULL) {
FXFT_Init_FreeType(&m_FTLibrary);
}
if (m_pExtMapper) {
FXFT_Face face = m_pExtMapper->FindSubstFont(face_name, bTrueType, flags, weight, italic_angle,
CharsetCP, pSubstFont);
if (face) {
return face;
}
}
return m_pBuiltinMapper->FindSubstFont(face_name, bTrueType, flags, weight, italic_angle,
CharsetCP, pSubstFont);
}
FXFT_Face CFX_FontMgr::GetCachedFace(const CFX_ByteString& face_name,
int weight, FX_BOOL bItalic, uint8_t*& pFontData)
{
CFX_ByteString key(face_name);
key += ',';
key += CFX_ByteString::FormatInteger(weight);
key += bItalic ? 'I' : 'N';
CTTFontDesc* pFontDesc = NULL;
m_FaceMap.Lookup(key, (void*&)pFontDesc);
if(pFontDesc) {
pFontData = pFontDesc->m_pFontData;
pFontDesc->m_RefCount ++;
return pFontDesc->m_SingleFace.m_pFace;
}
return NULL;
}
FXFT_Face CFX_FontMgr::AddCachedFace(const CFX_ByteString& face_name,
int weight, FX_BOOL bItalic, uint8_t* pData, FX_DWORD size, int face_index)
{
CTTFontDesc* pFontDesc = new CTTFontDesc;
pFontDesc->m_Type = 1;
pFontDesc->m_SingleFace.m_pFace = NULL;
pFontDesc->m_SingleFace.m_bBold = weight;
pFontDesc->m_SingleFace.m_bItalic = bItalic;
pFontDesc->m_pFontData = pData;
pFontDesc->m_RefCount = 1;
FXFT_Library library;
if (m_FTLibrary == NULL) {
FXFT_Init_FreeType(&m_FTLibrary);
}
library = m_FTLibrary;
int ret = FXFT_New_Memory_Face(library, pData, size, face_index, &pFontDesc->m_SingleFace.m_pFace);
if (ret) {
delete pFontDesc;
return NULL;
}
ret = FXFT_Set_Pixel_Sizes(pFontDesc->m_SingleFace.m_pFace, 64, 64);
if (ret) {
delete pFontDesc;
return NULL;
}
CFX_ByteString key(face_name);
key += ',';
key += CFX_ByteString::FormatInteger(weight);
key += bItalic ? 'I' : 'N';
m_FaceMap.SetAt(key, pFontDesc);
return pFontDesc->m_SingleFace.m_pFace;
}
const FX_CHAR* const g_Base14FontNames[14] = {
"Courier",
"Courier-Bold",
"Courier-BoldOblique",
"Courier-Oblique",
"Helvetica",
"Helvetica-Bold",
"Helvetica-BoldOblique",
"Helvetica-Oblique",
"Times-Roman",
"Times-Bold",
"Times-BoldItalic",
"Times-Italic",
"Symbol",
"ZapfDingbats",
};
const struct _AltFontName {
const FX_CHAR* m_pName;
int m_Index;
}
g_AltFontNames[] = {
{"Arial", 4},
{"Arial,Bold", 5},
{"Arial,BoldItalic", 6},
{"Arial,Italic", 7},
{"Arial-Bold", 5},
{"Arial-BoldItalic", 6},
{"Arial-BoldItalicMT", 6},
{"Arial-BoldMT", 5},
{"Arial-Italic", 7},
{"Arial-ItalicMT", 7},
{"ArialBold", 5},
{"ArialBoldItalic", 6},
{"ArialItalic", 7},
{"ArialMT", 4},
{"ArialMT,Bold", 5},
{"ArialMT,BoldItalic", 6},
{"ArialMT,Italic", 7},
{"ArialRoundedMTBold", 5},
{"Courier", 0},
{"Courier,Bold", 1},
{"Courier,BoldItalic", 2},
{"Courier,Italic", 3},
{"Courier-Bold", 1},
{"Courier-BoldOblique", 2},
{"Courier-Oblique", 3},
{"CourierBold", 1},
{"CourierBoldItalic", 2},
{"CourierItalic", 3},
{"CourierNew", 0},
{"CourierNew,Bold", 1},
{"CourierNew,BoldItalic", 2},
{"CourierNew,Italic", 3},
{"CourierNew-Bold", 1},
{"CourierNew-BoldItalic", 2},
{"CourierNew-Italic", 3},
{"CourierNewBold", 1},
{"CourierNewBoldItalic", 2},
{"CourierNewItalic", 3},
{"CourierNewPS-BoldItalicMT", 2},
{"CourierNewPS-BoldMT", 1},
{"CourierNewPS-ItalicMT", 3},
{"CourierNewPSMT", 0},
{"CourierStd", 0},
{"CourierStd-Bold", 1},
{"CourierStd-BoldOblique", 2},
{"CourierStd-Oblique", 3},
{"Helvetica", 4},
{"Helvetica,Bold", 5},
{"Helvetica,BoldItalic", 6},
{"Helvetica,Italic", 7},
{"Helvetica-Bold", 5},
{"Helvetica-BoldItalic", 6},
{"Helvetica-BoldOblique", 6},
{"Helvetica-Italic", 7},
{"Helvetica-Oblique", 7},
{"HelveticaBold", 5},
{"HelveticaBoldItalic", 6},
{"HelveticaItalic", 7},
{"Symbol", 12},
{"SymbolMT", 12},
{"Times-Bold", 9},
{"Times-BoldItalic", 10},
{"Times-Italic", 11},
{"Times-Roman", 8},
{"TimesBold", 9},
{"TimesBoldItalic", 10},
{"TimesItalic", 11},
{"TimesNewRoman", 8},
{"TimesNewRoman,Bold", 9},
{"TimesNewRoman,BoldItalic", 10},
{"TimesNewRoman,Italic", 11},
{"TimesNewRoman-Bold", 9},
{"TimesNewRoman-BoldItalic", 10},
{"TimesNewRoman-Italic", 11},
{"TimesNewRomanBold", 9},
{"TimesNewRomanBoldItalic", 10},
{"TimesNewRomanItalic", 11},
{"TimesNewRomanPS", 8},
{"TimesNewRomanPS-Bold", 9},
{"TimesNewRomanPS-BoldItalic", 10},
{"TimesNewRomanPS-BoldItalicMT", 10},
{"TimesNewRomanPS-BoldMT", 9},
{"TimesNewRomanPS-Italic", 11},
{"TimesNewRomanPS-ItalicMT", 11},
{"TimesNewRomanPSMT", 8},
{"TimesNewRomanPSMT,Bold", 9},
{"TimesNewRomanPSMT,BoldItalic", 10},
{"TimesNewRomanPSMT,Italic", 11},
{"ZapfDingbats", 13},
};
extern "C" {
static int compareString(const void* key, const void* element)
{
return FXSYS_stricmp((const FX_CHAR*)key, ((_AltFontName*)element)->m_pName);
}
}
int _PDF_GetStandardFontName(CFX_ByteString& name)
{
_AltFontName* found = (_AltFontName*)FXSYS_bsearch(name.c_str(), g_AltFontNames,
sizeof g_AltFontNames / sizeof (_AltFontName), sizeof (_AltFontName), compareString);
if (found == NULL) {
return -1;
}
name = g_Base14FontNames[found->m_Index];
return found->m_Index;
}
int GetTTCIndex(const uint8_t* pFontData, FX_DWORD ttc_size, FX_DWORD font_offset)
{
int face_index = 0;
const uint8_t* p = pFontData + 8;
FX_DWORD nfont = GET_TT_LONG(p);
FX_DWORD index;
for (index = 0; index < nfont; index ++) {
p = pFontData + 12 + index * 4;
if (GET_TT_LONG(p) == font_offset) {
break;
}
}
if(index >= nfont) {
face_index = 0;
} else {
face_index = index;
}
return face_index;
}
FXFT_Face CFX_FontMgr::GetCachedTTCFace(int ttc_size, FX_DWORD checksum,
int font_offset, uint8_t*& pFontData)
{
CFX_ByteString key;
key.Format("%d:%d", ttc_size, checksum);
CTTFontDesc* pFontDesc = NULL;
m_FaceMap.Lookup(key, (void*&)pFontDesc);
if (pFontDesc == NULL) {
return NULL;
}
pFontData = pFontDesc->m_pFontData;
pFontDesc->m_RefCount ++;
int face_index = GetTTCIndex(pFontDesc->m_pFontData, ttc_size, font_offset);
if (pFontDesc->m_TTCFace.m_pFaces[face_index] == NULL) {
pFontDesc->m_TTCFace.m_pFaces[face_index] = GetFixedFace(pFontDesc->m_pFontData, ttc_size, face_index);
}
return pFontDesc->m_TTCFace.m_pFaces[face_index];
}
FXFT_Face CFX_FontMgr::AddCachedTTCFace(int ttc_size, FX_DWORD checksum,
uint8_t* pData, FX_DWORD size, int font_offset)
{
CFX_ByteString key;
key.Format("%d:%d", ttc_size, checksum);
CTTFontDesc* pFontDesc = new CTTFontDesc;
pFontDesc->m_Type = 2;
pFontDesc->m_pFontData = pData;
for (int i = 0; i < 16; i ++) {
pFontDesc->m_TTCFace.m_pFaces[i] = NULL;
}
pFontDesc->m_RefCount ++;
key.Format("%d:%d", ttc_size, checksum);
m_FaceMap.SetAt(key, pFontDesc);
int face_index = GetTTCIndex(pFontDesc->m_pFontData, ttc_size, font_offset);
pFontDesc->m_TTCFace.m_pFaces[face_index] = GetFixedFace(pFontDesc->m_pFontData, ttc_size, face_index);
return pFontDesc->m_TTCFace.m_pFaces[face_index];
}
FXFT_Face CFX_FontMgr::GetFixedFace(const uint8_t* pData, FX_DWORD size, int face_index)
{
FXFT_Library library;
if (m_FTLibrary == NULL) {
FXFT_Init_FreeType(&m_FTLibrary);
}
library = m_FTLibrary;
FXFT_Face face = NULL;
int ret = FXFT_New_Memory_Face(library, pData, size, face_index, &face);
if (ret) {
return NULL;
}
ret = FXFT_Set_Pixel_Sizes(face, 64, 64);
if (ret) {
return NULL;
}
return face;
}
FXFT_Face CFX_FontMgr::GetFileFace(const FX_CHAR* filename, int face_index)
{
FXFT_Library library;
if (m_FTLibrary == NULL) {
FXFT_Init_FreeType(&m_FTLibrary);
}
library = m_FTLibrary;
FXFT_Face face = NULL;
int ret = FXFT_New_Face(library, filename, face_index, &face);
if (ret) {
return NULL;
}
ret = FXFT_Set_Pixel_Sizes(face, 64, 64);
if (ret) {
return NULL;
}
return face;
}
void CFX_FontMgr::ReleaseFace(FXFT_Face face)
{
if (face == NULL) {
return;
}
FX_POSITION pos = m_FaceMap.GetStartPosition();
while(pos) {
CFX_ByteString Key;
CTTFontDesc* ttface;
m_FaceMap.GetNextAssoc(pos, Key, (void*&)ttface);
if (ttface->ReleaseFace(face)) {
m_FaceMap.RemoveKey(Key);
}
}
}
extern "C" {
extern const unsigned char g_FoxitFixedItalicFontData [18746];
extern const unsigned char g_FoxitFixedFontData [17597];
extern const unsigned char g_FoxitSansItalicFontData [16339];
extern const unsigned char g_FoxitSansFontData [15025];
extern const unsigned char g_FoxitSerifItalicFontData [21227];
extern const unsigned char g_FoxitSerifFontData [19469];
extern const unsigned char g_FoxitFixedBoldItalicFontData [19151];
extern const unsigned char g_FoxitFixedBoldFontData [18055];
extern const unsigned char g_FoxitSansBoldItalicFontData [16418];
extern const unsigned char g_FoxitSansBoldFontData [16344];
extern const unsigned char g_FoxitSerifBoldItalicFontData [20733];
extern const unsigned char g_FoxitSerifBoldFontData [19395];
extern const unsigned char g_FoxitSymbolFontData[16729];
extern const unsigned char g_FoxitDingbatsFontData[29513];
extern const unsigned char g_FoxitSerifMMFontData[113417];
extern const unsigned char g_FoxitSansMMFontData[66919];
};
const FoxitFonts g_FoxitFonts[14] = {
{g_FoxitFixedFontData, 17597},
{g_FoxitFixedBoldFontData, 18055},
{g_FoxitFixedBoldItalicFontData, 19151},
{g_FoxitFixedItalicFontData, 18746},
{g_FoxitSansFontData, 15025},
{g_FoxitSansBoldFontData, 16344},
{g_FoxitSansBoldItalicFontData, 16418},
{g_FoxitSansItalicFontData, 16339},
{g_FoxitSerifFontData, 19469},
{g_FoxitSerifBoldFontData, 19395},
{g_FoxitSerifBoldItalicFontData, 20733},
{g_FoxitSerifItalicFontData, 21227},
{g_FoxitSymbolFontData, 16729},
{g_FoxitDingbatsFontData, 29513},
};
void _FPDFAPI_GetInternalFontData(int id, const uint8_t*& data, FX_DWORD& size)
{
CFX_GEModule::Get()->GetFontMgr()->GetStandardFont(data, size, id);
}
FX_BOOL CFX_FontMgr::GetStandardFont(const uint8_t*& pFontData, FX_DWORD& size, int index)
{
if (index > 15 || index < 0) {
return FALSE;
}
{
if (index >= 14) {
if (index == 14) {
pFontData = g_FoxitSerifMMFontData;
size = 113417;
} else {
pFontData = g_FoxitSansMMFontData;
size = 66919;
}
} else {
pFontData = g_FoxitFonts[index].m_pFontData;
size = g_FoxitFonts[index].m_dwSize;
}
}
return TRUE;
}
CFX_FontMapper::CFX_FontMapper()
{
FXSYS_memset32(m_FoxitFaces, 0, sizeof m_FoxitFaces);
m_MMFaces[0] = m_MMFaces[1] = NULL;
m_pFontInfo = NULL;
m_bListLoaded = FALSE;
m_pFontEnumerator = NULL;
}
CFX_FontMapper::~CFX_FontMapper()
{
for (int i = 0; i < 14; i ++)
if (m_FoxitFaces[i]) {
FXFT_Done_Face(m_FoxitFaces[i]);
}
if (m_MMFaces[0]) {
FXFT_Done_Face(m_MMFaces[0]);
}
if (m_MMFaces[1]) {
FXFT_Done_Face(m_MMFaces[1]);
}
if (m_pFontInfo) {
m_pFontInfo->Release();
}
}
void CFX_FontMapper::SetSystemFontInfo(IFX_SystemFontInfo* pFontInfo)
{
if (pFontInfo == NULL) {
return;
}
if (m_pFontInfo) {
m_pFontInfo->Release();
}
m_pFontInfo = pFontInfo;
}
static CFX_ByteString _TT_NormalizeName(const FX_CHAR* family)
{
CFX_ByteString norm(family, -1);
norm.Remove(' ');
norm.Remove('-');
norm.Remove(',');
int pos = norm.Find('+');
if (pos > 0) {
norm = norm.Left(pos);
}
norm.MakeLower();
return norm;
}
CFX_ByteString _FPDF_GetNameFromTT(const uint8_t* name_table, FX_DWORD name_id)
{
const uint8_t* ptr = name_table + 2;
int name_count = GET_TT_SHORT(ptr);
int string_offset = GET_TT_SHORT(ptr + 2);
const uint8_t* string_ptr = name_table + string_offset;
ptr += 4;
for (int i = 0; i < name_count; i ++) {
if (GET_TT_SHORT(ptr + 6) == name_id && GET_TT_SHORT(ptr) == 1 && GET_TT_SHORT(ptr + 2) == 0) {
return CFX_ByteStringC(string_ptr + GET_TT_SHORT(ptr + 10), GET_TT_SHORT(ptr + 8));
}
ptr += 12;
}
return CFX_ByteString();
}
static CFX_ByteString _FPDF_ReadStringFromFile(FXSYS_FILE* pFile, FX_DWORD size)
{
CFX_ByteString buffer;
if (!FXSYS_fread(buffer.GetBuffer(size), size, 1, pFile)) {
return CFX_ByteString();
}
buffer.ReleaseBuffer(size);
return buffer;
}
CFX_ByteString _FPDF_LoadTableFromTT(FXSYS_FILE* pFile, const uint8_t* pTables, FX_DWORD nTables, FX_DWORD tag)
{
for (FX_DWORD i = 0; i < nTables; i ++) {
const uint8_t* p = pTables + i * 16;
if (GET_TT_LONG(p) == tag) {
FX_DWORD offset = GET_TT_LONG(p + 8);
FX_DWORD size = GET_TT_LONG(p + 12);
FXSYS_fseek(pFile, offset, FXSYS_SEEK_SET);
return _FPDF_ReadStringFromFile(pFile, size);
}
}
return CFX_ByteString();
}
CFX_ByteString _FPDF_LoadTableFromTTStreamFile(IFX_FileStream* pFile, const uint8_t* pTables, FX_DWORD nTables, FX_DWORD tag)
{
for (FX_DWORD i = 0; i < nTables; i ++) {
const uint8_t* p = pTables + i * 16;
if (GET_TT_LONG(p) == tag) {
FX_DWORD offset = GET_TT_LONG(p + 8);
FX_DWORD size = GET_TT_LONG(p + 12);
CFX_ByteString buffer;
if (!pFile->ReadBlock(buffer.GetBuffer(size), offset, size)) {
return CFX_ByteString();
}
buffer.ReleaseBuffer(size);
return buffer;
}
}
return CFX_ByteString();
}
CFX_ByteString CFX_FontMapper::GetPSNameFromTT(void* hFont)
{
if (m_pFontInfo == NULL) {
CFX_ByteString();
}
CFX_ByteString result;
FX_DWORD size = m_pFontInfo->GetFontData(hFont, 0x6e616d65, NULL, 0);
if (size) {
uint8_t* buffer = FX_Alloc(uint8_t, size);
m_pFontInfo->GetFontData(hFont, 0x6e616d65, buffer, size);
result = _FPDF_GetNameFromTT(buffer, 6);
FX_Free(buffer);
}
return result;
}
void CFX_FontMapper::AddInstalledFont(const CFX_ByteString& name, int charset)
{
if (m_pFontInfo == NULL) {
return;
}
if (m_CharsetArray.Find((FX_DWORD)charset) == -1) {
m_CharsetArray.Add((FX_DWORD)charset);
m_FaceArray.Add(name);
}
if (name == m_LastFamily) {
return;
}
const uint8_t* ptr = name;
FX_BOOL bLocalized = FALSE;
for (int i = 0; i < name.GetLength(); i ++)
if (ptr[i] > 0x80) {
bLocalized = TRUE;
break;
}
if (bLocalized) {
void* hFont = m_pFontInfo->GetFont(name);
if (hFont == NULL) {
FX_BOOL bExact;
hFont = m_pFontInfo->MapFont(0, 0, FXFONT_DEFAULT_CHARSET, 0, name, bExact);
if (hFont == NULL) {
return;
}
}
CFX_ByteString new_name = GetPSNameFromTT(hFont);
if (!new_name.IsEmpty()) {
new_name.Insert(0, ' ');
m_InstalledTTFonts.Add(new_name);
}
m_pFontInfo->DeleteFont(hFont);
}
m_InstalledTTFonts.Add(name);
m_LastFamily = name;
}
void CFX_FontMapper::LoadInstalledFonts()
{
if (m_pFontInfo == NULL) {
return;
}
if (m_bListLoaded) {
return;
}
if (m_bListLoaded) {
return;
}
m_pFontInfo->EnumFontList(this);
m_bListLoaded = TRUE;
}
CFX_ByteString CFX_FontMapper::MatchInstalledFonts(const CFX_ByteString& norm_name)
{
LoadInstalledFonts();
int i;
for (i = m_InstalledTTFonts.GetSize() - 1; i >= 0; i --) {
CFX_ByteString norm1 = _TT_NormalizeName(m_InstalledTTFonts[i]);
if (norm1 == norm_name) {
break;
}
}
if (i < 0) {
return CFX_ByteString();
}
CFX_ByteString match = m_InstalledTTFonts[i];
if (match[0] == ' ') {
match = m_InstalledTTFonts[i + 1];
}
return match;
}
typedef struct _CHARSET_MAP_ {
uint8_t charset;
FX_WORD codepage;
} CHARSET_MAP;
static const CHARSET_MAP g_Codepage2CharsetTable[] = {
{ 1 , 0 },
{ 2 , 42 },
{ 254, 437 },
{ 255, 850 },
{ 222, 874 },
{ 128, 932 },
{ 134, 936 },
{ 129, 949 },
{ 136, 950 },
{ 238, 1250 },
{ 204, 1251 },
{ 0, 1252 },
{ 161, 1253 },
{ 162, 1254 },
{ 177, 1255 },
{ 178, 1256 },
{ 186, 1257 },
{ 163, 1258 },
{ 130, 1361 },
{ 77, 10000 },
{ 78, 10001 },
{ 79, 10003 },
{ 80, 10008 },
{ 81, 10002 },
{ 83, 10005 },
{ 84, 10004 },
{ 85, 10006 },
{ 86, 10081 },
{ 87, 10021 },
{ 88, 10029 },
{ 89, 10007 },
};
uint8_t _GetCharsetFromCodePage(FX_WORD codepage)
{
int32_t iEnd = sizeof(g_Codepage2CharsetTable) / sizeof(CHARSET_MAP) - 1;
FXSYS_assert(iEnd >= 0);
int32_t iStart = 0, iMid;
do {
iMid = (iStart + iEnd) / 2;
const CHARSET_MAP & cp = g_Codepage2CharsetTable[iMid];
if (codepage == cp.codepage) {
return cp.charset;
} else if (codepage < cp.codepage) {
iEnd = iMid - 1;
} else {
iStart = iMid + 1;
}
} while (iStart <= iEnd);
return 1;
}
FX_DWORD _GetCodePageRangeFromCharset(int charset)
{
if (charset == FXFONT_EASTEUROPE_CHARSET) {
return 1 << 1;
}
if (charset == FXFONT_GREEK_CHARSET) {
return 1 << 3;
}
if (charset == FXFONT_TURKISH_CHARSET) {
return 1 << 4;
}
if (charset == FXFONT_HEBREW_CHARSET) {
return 1 << 5;
}
if (charset == FXFONT_ARABIC_CHARSET) {
return 1 << 6;
}
if (charset == FXFONT_BALTIC_CHARSET) {
return 1 << 7;
}
if (charset == FXFONT_THAI_CHARSET) {
return 1 << 16;
}
if (charset == FXFONT_SHIFTJIS_CHARSET) {
return 1 << 17;
}
if (charset == FXFONT_GB2312_CHARSET) {
return 1 << 18;
}
if (charset == FXFONT_CHINESEBIG5_CHARSET) {
return 1 << 20;
}
if (charset == FXFONT_HANGEUL_CHARSET) {
return 1 << 19;
}
if (charset == FXFONT_SYMBOL_CHARSET) {
return 1 << 31;
}
return 1 << 21;
}
FXFT_Face CFX_FontMapper::UseInternalSubst(CFX_SubstFont* pSubstFont, int iBaseFont, int italic_angle, int weight, int picthfamily)
{
if (iBaseFont < 12) {
if (m_FoxitFaces[iBaseFont]) {
return m_FoxitFaces[iBaseFont];
}
const uint8_t* pFontData = NULL;
FX_DWORD size = 0;
if (m_pFontMgr->GetStandardFont(pFontData, size, iBaseFont)) {
m_FoxitFaces[iBaseFont] = m_pFontMgr->GetFixedFace(pFontData, size, 0);
return m_FoxitFaces[iBaseFont];
}
}
pSubstFont->m_SubstFlags |= FXFONT_SUBST_MM;
pSubstFont->m_ItalicAngle = italic_angle;
if (weight) {
pSubstFont->m_Weight = weight;
}
if (picthfamily & FXFONT_FF_ROMAN) {
pSubstFont->m_Weight = pSubstFont->m_Weight * 4 / 5;
pSubstFont->m_Family = "Chrome Serif";
if (m_MMFaces[1]) {
return m_MMFaces[1];
}
const uint8_t* pFontData = NULL;
FX_DWORD size;
m_pFontMgr->GetStandardFont(pFontData, size, 14);
m_MMFaces[1] = m_pFontMgr->GetFixedFace(pFontData, size, 0);
return m_MMFaces[1];
}
pSubstFont->m_Family = "Chrome Sans";
if (m_MMFaces[0]) {
return m_MMFaces[0];
}
const uint8_t* pFontData = NULL;
FX_DWORD size = 0;
m_pFontMgr->GetStandardFont(pFontData, size, 15);
m_MMFaces[0] = m_pFontMgr->GetFixedFace(pFontData, size, 0);
return m_MMFaces[0];
}
const struct _AltFontFamily {
const FX_CHAR* m_pFontName;
const FX_CHAR* m_pFontFamily;
}
g_AltFontFamilies[] = {
{"AGaramondPro", "Adobe Garamond Pro"},
{"BankGothicBT-Medium", "BankGothic Md BT"},
{"ForteMT", "Forte"},
};
extern "C" {
static int compareFontFamilyString(const void* key, const void* element)
{
CFX_ByteString str_key((const FX_CHAR*)key);
if (str_key.Find(((_AltFontFamily*)element)->m_pFontName) != -1) {
return 0;
}
return FXSYS_stricmp((const FX_CHAR*)key, ((_AltFontFamily*)element)->m_pFontName);
}
}
#define FX_FONT_STYLE_None 0x00
#define FX_FONT_STYLE_Bold 0x01
#define FX_FONT_STYLE_Italic 0x02
#define FX_FONT_STYLE_BoldBold 0x04
static CFX_ByteString _GetFontFamily(CFX_ByteString fontName, int nStyle)
{
if (fontName.Find("Script") >= 0) {
if ((nStyle & FX_FONT_STYLE_Bold) == FX_FONT_STYLE_Bold) {
fontName = "ScriptMTBold";
} else if (fontName.Find("Palace") >= 0) {
fontName = "PalaceScriptMT";
} else if (fontName.Find("French") >= 0) {
fontName = "FrenchScriptMT";
} else if (fontName.Find("FreeStyle") >= 0) {
fontName = "FreeStyleScript";
}
return fontName;
}
_AltFontFamily* found = (_AltFontFamily*)FXSYS_bsearch(fontName.c_str(), g_AltFontFamilies,
sizeof g_AltFontFamilies / sizeof (_AltFontFamily), sizeof (_AltFontFamily), compareFontFamilyString);
if (found == NULL) {
return fontName;
}
return found->m_pFontFamily;
};
typedef struct _FX_FontStyle {
const FX_CHAR* style;
int32_t len;
} FX_FontStyle;
const FX_FontStyle g_FontStyles[] = {
{ "Bold", 4 },
{ "Italic", 6 },
{ "BoldItalic", 10 },
{ "Reg", 3 },
{ "Regular", 7 },
};
CFX_ByteString ParseStyle(const FX_CHAR* pStyle, int iLen, int iIndex)
{
CFX_ByteTextBuf buf;
if (!iLen || iLen <= iIndex) {
return buf.GetByteString();
}
while (iIndex < iLen) {
if (pStyle[iIndex] == ',') {
break;
}
buf.AppendChar(pStyle[iIndex]);
++iIndex;
}
return buf.GetByteString();
}
int32_t GetStyleType(const CFX_ByteString &bsStyle, FX_BOOL bRevert)
{
int32_t iLen = bsStyle.GetLength();
if (!iLen) {
return -1;
}
int iSize = sizeof(g_FontStyles) / sizeof(FX_FontStyle);
const FX_FontStyle *pStyle = NULL;
for (int i = iSize - 1; i >= 0; --i) {
pStyle = g_FontStyles + i;
if (!pStyle || pStyle->len > iLen) {
continue;
}
if (!bRevert) {
if (bsStyle.Left(pStyle->len).Compare(pStyle->style) == 0) {
return i;
}
} else {
if (bsStyle.Right(pStyle->len).Compare(pStyle->style) == 0) {
return i;
}
}
}
return -1;
}
FX_BOOL CheckSupportThirdPartFont(CFX_ByteString name, int &PitchFamily)
{
if (name == FX_BSTRC("MyriadPro")) {
PitchFamily &= ~FXFONT_FF_ROMAN;
return TRUE;
}
return FALSE;
}
FXFT_Face CFX_FontMapper::FindSubstFont(const CFX_ByteString& name, FX_BOOL bTrueType, FX_DWORD flags,
int weight, int italic_angle, int WindowCP, CFX_SubstFont* pSubstFont)
{
if (!(flags & FXFONT_USEEXTERNATTR)) {
weight = FXFONT_FW_NORMAL;
italic_angle = 0;
}
CFX_ByteString SubstName = name;
SubstName.Remove(0x20);
if (bTrueType) {
if (name[0] == '@') {
SubstName = name.Mid(1);
}
}
_PDF_GetStandardFontName(SubstName);
if (SubstName == FX_BSTRC("Symbol") && !bTrueType) {
pSubstFont->m_Family = "Chrome Symbol";
pSubstFont->m_Charset = FXFONT_SYMBOL_CHARSET;
pSubstFont->m_SubstFlags |= FXFONT_SUBST_STANDARD;
if (m_FoxitFaces[12]) {
return m_FoxitFaces[12];
}
const uint8_t* pFontData = NULL;
FX_DWORD size = 0;
m_pFontMgr->GetStandardFont(pFontData, size, 12);
m_FoxitFaces[12] = m_pFontMgr->GetFixedFace(pFontData, size, 0);
return m_FoxitFaces[12];
}
if (SubstName == FX_BSTRC("ZapfDingbats")) {
pSubstFont->m_Family = "Chrome Dingbats";
pSubstFont->m_Charset = FXFONT_SYMBOL_CHARSET;
pSubstFont->m_SubstFlags |= FXFONT_SUBST_STANDARD;
if (m_FoxitFaces[13]) {
return m_FoxitFaces[13];
}
const uint8_t* pFontData = NULL;
FX_DWORD size = 0;
m_pFontMgr->GetStandardFont(pFontData, size, 13);
m_FoxitFaces[13] = m_pFontMgr->GetFixedFace(pFontData, size, 0);
return m_FoxitFaces[13];
}
int iBaseFont = 0;
CFX_ByteString family, style;
FX_BOOL bHasComma = FALSE;
FX_BOOL bHasHypen = FALSE;
int find = SubstName.Find(FX_BSTRC(","), 0);
if (find >= 0) {
family = SubstName.Left(find);
_PDF_GetStandardFontName(family);
style = SubstName.Mid(find + 1);
bHasComma = TRUE;
} else {
family = SubstName;
}
for (; iBaseFont < 12; iBaseFont ++)
if (family == CFX_ByteStringC(g_Base14FontNames[iBaseFont])) {
break;
}
int PitchFamily = 0;
FX_BOOL bItalic = FALSE;
FX_DWORD nStyle = 0;
FX_BOOL bStyleAvail = FALSE;
if (iBaseFont < 12) {
family = g_Base14FontNames[iBaseFont];
if ((iBaseFont % 4) == 1 || (iBaseFont % 4) == 2) {
nStyle |= FX_FONT_STYLE_Bold;
}
if ((iBaseFont % 4) / 2) {
nStyle |= FX_FONT_STYLE_Italic;
}
if (iBaseFont < 4) {
PitchFamily |= FXFONT_FF_FIXEDPITCH;
}
if (iBaseFont >= 8) {
PitchFamily |= FXFONT_FF_ROMAN;
}
} else {
if (!bHasComma) {
find = family.ReverseFind('-');
if (find >= 0) {
style = family.Mid(find + 1);
family = family.Left(find);
bHasHypen = TRUE;
}
}
if (!bHasHypen) {
int nLen = family.GetLength();
int32_t nRet = GetStyleType(family, TRUE);
if (nRet > -1) {
family = family.Left(nLen - g_FontStyles[nRet].len);
if (nRet == 0) {
nStyle |= FX_FONT_STYLE_Bold;
}
if (nRet == 1) {
nStyle |= FX_FONT_STYLE_Italic;
}
if (nRet == 2) {
nStyle |= (FX_FONT_STYLE_Bold | FX_FONT_STYLE_Italic);
}
}
}
if (flags & FXFONT_SERIF) {
PitchFamily |= FXFONT_FF_ROMAN;
}
if (flags & FXFONT_SCRIPT) {
PitchFamily |= FXFONT_FF_SCRIPT;
}
if (flags & FXFONT_FIXED_PITCH) {
PitchFamily |= FXFONT_FF_FIXEDPITCH;
}
}
if (!style.IsEmpty()) {
int nLen = style.GetLength();
const FX_CHAR* pStyle = style;
int i = 0;
FX_BOOL bFirstItem = TRUE;
CFX_ByteString buf;
while (i < nLen) {
buf = ParseStyle(pStyle, nLen, i);
int32_t nRet = GetStyleType(buf, FALSE);
if ((i && !bStyleAvail) || (!i && nRet < 0)) {
family = SubstName;
iBaseFont = 12;
break;
} else if (nRet >= 0) {
bStyleAvail = TRUE;
}
if (nRet == 0) {
if (nStyle & FX_FONT_STYLE_Bold) {
nStyle |= FX_FONT_STYLE_BoldBold;
} else {
nStyle |= FX_FONT_STYLE_Bold;
}
bFirstItem = FALSE;
}
if (nRet == 1) {
if (bFirstItem) {
nStyle |= FX_FONT_STYLE_Italic;
} else {
family = SubstName;
iBaseFont = 12;
}
break;
}
if (nRet == 2) {
nStyle |= FX_FONT_STYLE_Italic;
if (nStyle & FX_FONT_STYLE_Bold) {
nStyle |= FX_FONT_STYLE_BoldBold;
} else {
nStyle |= FX_FONT_STYLE_Bold;
}
bFirstItem = FALSE;
}
i += buf.GetLength() + 1;
}
}
weight = weight ? weight : FXFONT_FW_NORMAL;
int old_weight = weight;
if (nStyle) {
weight = nStyle & FX_FONT_STYLE_BoldBold ? 900 : (nStyle & FX_FONT_STYLE_Bold ? FXFONT_FW_BOLD : FXFONT_FW_NORMAL);
}
if (nStyle & FX_FONT_STYLE_Italic) {
bItalic = TRUE;
}
FX_BOOL bCJK = FALSE;
FX_BOOL bExact = FALSE;
int Charset = FXFONT_ANSI_CHARSET;
if (WindowCP) {
Charset = _GetCharsetFromCodePage(WindowCP);
} else if (iBaseFont == 12 && (flags & FXFONT_SYMBOLIC)) {
Charset = FXFONT_SYMBOL_CHARSET;
}
if (Charset == FXFONT_SHIFTJIS_CHARSET || Charset == FXFONT_GB2312_CHARSET ||
Charset == FXFONT_HANGEUL_CHARSET || Charset == FXFONT_CHINESEBIG5_CHARSET) {
bCJK = TRUE;
}
if (m_pFontInfo == NULL) {
pSubstFont->m_SubstFlags |= FXFONT_SUBST_STANDARD;
return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight, PitchFamily);
}
family = _GetFontFamily(family, nStyle);
CFX_ByteString match = MatchInstalledFonts(_TT_NormalizeName(family));
if (match.IsEmpty() && family != SubstName && (!bHasComma && (!bHasHypen || (bHasHypen && !bStyleAvail)))) {
match = MatchInstalledFonts(_TT_NormalizeName(SubstName));
}
if (match.IsEmpty() && iBaseFont >= 12) {
if (!bCJK) {
if (!CheckSupportThirdPartFont(family, PitchFamily)) {
if (italic_angle != 0) {
bItalic = TRUE;
} else {
bItalic = FALSE;
}
weight = old_weight;
}
} else {
pSubstFont->m_bSubstOfCJK = TRUE;
if (nStyle) {
pSubstFont->m_WeightCJK = weight;
} else {
pSubstFont->m_WeightCJK = FXFONT_FW_NORMAL;
}
if (nStyle & FX_FONT_STYLE_Italic) {
pSubstFont->m_bItlicCJK = TRUE;
}
}
} else {
italic_angle = 0;
weight = nStyle & FX_FONT_STYLE_BoldBold ? 900 : (nStyle & FX_FONT_STYLE_Bold ? FXFONT_FW_BOLD : FXFONT_FW_NORMAL);
}
if (!match.IsEmpty() || iBaseFont < 12) {
pSubstFont->m_SubstFlags |= FXFONT_SUBST_EXACT;
if (!match.IsEmpty()) {
family = match;
}
if (iBaseFont < 12) {
if (nStyle && !(iBaseFont % 4)) {
if ((nStyle & 0x3) == 1) {
iBaseFont += 1;
}
if ((nStyle & 0x3) == 2) {
iBaseFont += 3;
}
if ((nStyle & 0x3) == 3) {
iBaseFont += 2;
}
}
if (m_pFontMgr->m_ExternalFonts[iBaseFont].m_pFontData) {
if (m_FoxitFaces[iBaseFont]) {
return m_FoxitFaces[iBaseFont];
}
m_FoxitFaces[iBaseFont] = m_pFontMgr->GetFixedFace(m_pFontMgr->m_ExternalFonts[iBaseFont].m_pFontData,
m_pFontMgr->m_ExternalFonts[iBaseFont].m_dwSize, 0);
if (m_FoxitFaces[iBaseFont]) {
return m_FoxitFaces[iBaseFont];
}
} else {
family = g_Base14FontNames[iBaseFont];
}
pSubstFont->m_SubstFlags |= FXFONT_SUBST_STANDARD;
}
} else {
if (flags & FXFONT_ITALIC) {
bItalic = TRUE;
}
}
bExact = !match.IsEmpty();
void* hFont = m_pFontInfo->MapFont(weight, bItalic, Charset, PitchFamily, family, bExact);
if (bExact) {
pSubstFont->m_SubstFlags |= FXFONT_SUBST_EXACT;
}
if (hFont == NULL) {
if (bCJK) {
if (italic_angle != 0) {
bItalic = TRUE;
} else {
bItalic = FALSE;
}
weight = old_weight;
}
if (!match.IsEmpty()) {
hFont = m_pFontInfo->GetFont(match);
if (hFont == NULL) {
return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight, PitchFamily);
}
} else {
if (Charset == FXFONT_SYMBOL_CHARSET) {
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ || _FXM_PLATFORM_ == _FXM_PLATFORM_ANDROID_
if (SubstName == FX_BSTRC("Symbol")) {
pSubstFont->m_Family = "Chrome Symbol";
pSubstFont->m_SubstFlags |= FXFONT_SUBST_STANDARD;
pSubstFont->m_Charset = FXFONT_SYMBOL_CHARSET;
if (m_FoxitFaces[12]) {
return m_FoxitFaces[12];
}
const uint8_t* pFontData = NULL;
FX_DWORD size = 0;
m_pFontMgr->GetStandardFont(pFontData, size, 12);
m_FoxitFaces[12] = m_pFontMgr->GetFixedFace(pFontData, size, 0);
return m_FoxitFaces[12];
} else {
pSubstFont->m_SubstFlags |= FXFONT_SUBST_NONSYMBOL;
return FindSubstFont(family, bTrueType, flags & ~FXFONT_SYMBOLIC, weight, italic_angle, 0, pSubstFont);
}
#else
pSubstFont->m_SubstFlags |= FXFONT_SUBST_NONSYMBOL;
return FindSubstFont(family, bTrueType, flags & ~FXFONT_SYMBOLIC, weight, italic_angle, 0, pSubstFont);
#endif
}
if (Charset == FXFONT_ANSI_CHARSET) {
pSubstFont->m_SubstFlags |= FXFONT_SUBST_STANDARD;
return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight, PitchFamily);
}
int index = m_CharsetArray.Find(Charset);
if (index < 0) {
return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight, PitchFamily);
} else {
hFont = m_pFontInfo->GetFont(m_FaceArray[index]);
}
}
}
pSubstFont->m_ExtHandle = m_pFontInfo->RetainFont(hFont);
if (hFont == NULL) {
return NULL;
}
m_pFontInfo->GetFaceName(hFont, SubstName);
if (Charset == FXFONT_DEFAULT_CHARSET) {
m_pFontInfo->GetFontCharset(hFont, Charset);
}
FX_DWORD ttc_size = m_pFontInfo->GetFontData(hFont, 0x74746366, NULL, 0);
FX_DWORD font_size = m_pFontInfo->GetFontData(hFont, 0, NULL, 0);
if(font_size == 0 && ttc_size == 0) {
m_pFontInfo->DeleteFont(hFont);
return NULL;
}
FXFT_Face face = NULL;
if (ttc_size) {
uint8_t temp[1024];
m_pFontInfo->GetFontData(hFont, 0x74746366, temp, 1024);
FX_DWORD checksum = 0;
for (int i = 0; i < 256; i ++) {
checksum += ((FX_DWORD*)temp)[i];
}
uint8_t* pFontData;
face = m_pFontMgr->GetCachedTTCFace(ttc_size, checksum, ttc_size - font_size, pFontData);
if (face == NULL) {
pFontData = FX_Alloc(uint8_t, ttc_size);
m_pFontInfo->GetFontData(hFont, 0x74746366, pFontData, ttc_size);
face = m_pFontMgr->AddCachedTTCFace(ttc_size, checksum, pFontData, ttc_size,
ttc_size - font_size);
}
} else {
uint8_t* pFontData;
face = m_pFontMgr->GetCachedFace(SubstName, weight, bItalic, pFontData);
if (face == NULL) {
pFontData = FX_Alloc(uint8_t, font_size);
m_pFontInfo->GetFontData(hFont, 0, pFontData, font_size);
face = m_pFontMgr->AddCachedFace(SubstName, weight, bItalic, pFontData, font_size, m_pFontInfo->GetFaceIndex(hFont));
}
}
if (face == NULL) {
m_pFontInfo->DeleteFont(hFont);
return NULL;
}
pSubstFont->m_Family = SubstName;
pSubstFont->m_Charset = Charset;
FX_BOOL bNeedUpdateWeight = FALSE;
if (FXFT_Is_Face_Bold(face)) {
if (weight == FXFONT_FW_BOLD) {
bNeedUpdateWeight = FALSE;
} else {
bNeedUpdateWeight = TRUE;
}
} else {
if (weight == FXFONT_FW_NORMAL) {
bNeedUpdateWeight = FALSE;
} else {
bNeedUpdateWeight = TRUE;
}
}
if (bNeedUpdateWeight) {
pSubstFont->m_Weight = weight;
}
if (bItalic && !FXFT_Is_Face_Italic(face)) {
if (italic_angle == 0) {
italic_angle = -12;
} else if (FXSYS_abs(italic_angle) < 5) {
italic_angle = 0;
}
pSubstFont->m_ItalicAngle = italic_angle;
}
m_pFontInfo->DeleteFont(hFont);
return face;
}
extern "C" {
unsigned long _FTStreamRead(FXFT_Stream stream, unsigned long offset,
unsigned char* buffer, unsigned long count);
void _FTStreamClose(FXFT_Stream stream);
};
CFontFileFaceInfo::CFontFileFaceInfo()
{
m_pFile = NULL;
m_Face = NULL;
m_Charsets = 0;
m_FileSize = 0;
m_FontOffset = 0;
m_Weight = 0;
m_bItalic = FALSE;
m_PitchFamily = 0;
}
CFontFileFaceInfo::~CFontFileFaceInfo()
{
if (m_Face) {
FXFT_Done_Face(m_Face);
}
m_Face = NULL;
}
extern FX_BOOL _LoadFile(FXFT_Library library, FXFT_Face* Face, IFX_FileRead* pFile, FXFT_Stream* stream);
#if _FX_OS_ == _FX_ANDROID_
IFX_SystemFontInfo* IFX_SystemFontInfo::CreateDefault()
{
return NULL;
}
#endif
CFX_FolderFontInfo::CFX_FolderFontInfo()
{
}
CFX_FolderFontInfo::~CFX_FolderFontInfo()
{
FX_POSITION pos = m_FontList.GetStartPosition();
while (pos) {
CFX_ByteString key;
void* value;
m_FontList.GetNextAssoc(pos, key, value);
delete (CFontFaceInfo*)value;
}
}
void CFX_FolderFontInfo::AddPath(const CFX_ByteStringC& path)
{
m_PathList.Add(path);
}
void CFX_FolderFontInfo::Release()
{
delete this;
}
FX_BOOL CFX_FolderFontInfo::EnumFontList(CFX_FontMapper* pMapper)
{
m_pMapper = pMapper;
for (int i = 0; i < m_PathList.GetSize(); i ++) {
ScanPath(m_PathList[i]);
}
return TRUE;
}
void CFX_FolderFontInfo::ScanPath(CFX_ByteString& path)
{
void* handle = FX_OpenFolder(path);
if (handle == NULL) {
return;
}
CFX_ByteString filename;
FX_BOOL bFolder;
while (FX_GetNextFile(handle, filename, bFolder)) {
if (bFolder) {
if (filename == "." || filename == "..") {
continue;
}
} else {
CFX_ByteString ext = filename.Right(4);
ext.MakeUpper();
if (ext != ".TTF" && ext != ".OTF" && ext != ".TTC") {
continue;
}
}
CFX_ByteString fullpath = path;
#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
fullpath += "\\";
#else
fullpath += "/";
#endif
fullpath += filename;
if (bFolder) {
ScanPath(fullpath);
} else {
ScanFile(fullpath);
}
}
FX_CloseFolder(handle);
}
void CFX_FolderFontInfo::ScanFile(CFX_ByteString& path)
{
FXSYS_FILE* pFile = FXSYS_fopen(path, "rb");
if (pFile == NULL) {
return;
}
FXSYS_fseek(pFile, 0, FXSYS_SEEK_END);
FX_DWORD filesize = FXSYS_ftell(pFile);
uint8_t buffer[16];
FXSYS_fseek(pFile, 0, FXSYS_SEEK_SET);
size_t readCnt = FXSYS_fread(buffer, 12, 1, pFile);
if (readCnt != 1) {
FXSYS_fclose(pFile);
return;
}
if (GET_TT_LONG(buffer) == 0x74746366) {
FX_DWORD nFaces = GET_TT_LONG(buffer + 8);
if (nFaces > std::numeric_limits<FX_DWORD>::max() / 4) {
FXSYS_fclose(pFile);
return;
}
FX_DWORD face_bytes = nFaces * 4;
uint8_t* offsets = FX_Alloc(uint8_t, face_bytes);
readCnt = FXSYS_fread(offsets, face_bytes, 1, pFile);
if (readCnt != face_bytes) {
FX_Free(offsets);
FXSYS_fclose(pFile);
return;
}
for (FX_DWORD i = 0; i < nFaces; i ++) {
uint8_t* p = offsets + i * 4;
ReportFace(path, pFile, filesize, GET_TT_LONG(p));
}
FX_Free(offsets);
} else {
ReportFace(path, pFile, filesize, 0);
}
FXSYS_fclose(pFile);
}
void CFX_FolderFontInfo::ReportFace(CFX_ByteString& path, FXSYS_FILE* pFile, FX_DWORD filesize, FX_DWORD offset)
{
FXSYS_fseek(pFile, offset, FXSYS_SEEK_SET);
char buffer[16];
if (!FXSYS_fread(buffer, 12, 1, pFile)) {
return;
}
FX_DWORD nTables = GET_TT_SHORT(buffer + 4);
CFX_ByteString tables = _FPDF_ReadStringFromFile(pFile, nTables * 16);
if (tables.IsEmpty()) {
return;
}
CFX_ByteString names = _FPDF_LoadTableFromTT(pFile, tables, nTables, 0x6e616d65);
CFX_ByteString facename = _FPDF_GetNameFromTT(names, 1);
CFX_ByteString style = _FPDF_GetNameFromTT(names, 2);
if (style != "Regular") {
facename += " " + style;
}
void* p;
if (m_FontList.Lookup(facename, p)) {
return;
}
CFontFaceInfo* pInfo = new CFontFaceInfo;
pInfo->m_FilePath = path;
pInfo->m_FaceName = facename;
pInfo->m_FontTables = tables;
pInfo->m_FontOffset = offset;
pInfo->m_FileSize = filesize;
pInfo->m_Charsets = 0;
CFX_ByteString os2 = _FPDF_LoadTableFromTT(pFile, tables, nTables, 0x4f532f32);
if (os2.GetLength() >= 86) {
const uint8_t* p = (const uint8_t*)os2 + 78;
FX_DWORD codepages = GET_TT_LONG(p);
if (codepages & (1 << 17)) {
m_pMapper->AddInstalledFont(facename, FXFONT_SHIFTJIS_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_SHIFTJIS;
}
if (codepages & (1 << 18)) {
m_pMapper->AddInstalledFont(facename, FXFONT_GB2312_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_GB;
}
if (codepages & (1 << 20)) {
m_pMapper->AddInstalledFont(facename, FXFONT_CHINESEBIG5_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_BIG5;
}
if ((codepages & (1 << 19)) || (codepages & (1 << 21))) {
m_pMapper->AddInstalledFont(facename, FXFONT_HANGEUL_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_KOREAN;
}
if (codepages & (1 << 31)) {
m_pMapper->AddInstalledFont(facename, FXFONT_SYMBOL_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_SYMBOL;
}
}
m_pMapper->AddInstalledFont(facename, FXFONT_ANSI_CHARSET);
pInfo->m_Charsets |= CHARSET_FLAG_ANSI;
pInfo->m_Styles = 0;
if (style.Find(FX_BSTRC("Bold")) > -1) {
pInfo->m_Styles |= FXFONT_BOLD;
}
if (style.Find(FX_BSTRC("Italic")) > -1 || style.Find(FX_BSTRC("Oblique")) > -1) {
pInfo->m_Styles |= FXFONT_ITALIC;
}
if (facename.Find(FX_BSTRC("Serif")) > -1) {
pInfo->m_Styles |= FXFONT_SERIF;
}
m_FontList.SetAt(facename, pInfo);
}
void* CFX_FolderFontInfo::MapFont(int weight, FX_BOOL bItalic, int charset, int pitch_family, const FX_CHAR* family, FX_BOOL& bExact)
{
return NULL;
}
void* CFX_FolderFontInfo::GetFont(const FX_CHAR* face)
{
void* p;
if (!m_FontList.Lookup(face, p)) {
return NULL;
}
return p;
}
FX_DWORD CFX_FolderFontInfo::GetFontData(void* hFont, FX_DWORD table, uint8_t* buffer, FX_DWORD size)
{
if (hFont == NULL) {
return 0;
}
CFontFaceInfo* pFont = (CFontFaceInfo*)hFont;
FXSYS_FILE* pFile = NULL;
if (size > 0) {
pFile = FXSYS_fopen(pFont->m_FilePath, "rb");
if (pFile == NULL) {
return 0;
}
}
FX_DWORD datasize = 0;
FX_DWORD offset;
if (table == 0) {
datasize = pFont->m_FontOffset ? 0 : pFont->m_FileSize;
offset = 0;
} else if (table == 0x74746366) {
datasize = pFont->m_FontOffset ? pFont->m_FileSize : 0;
offset = 0;
} else {
FX_DWORD nTables = pFont->m_FontTables.GetLength() / 16;
for (FX_DWORD i = 0; i < nTables; i ++) {
const uint8_t* p = (const uint8_t*)pFont->m_FontTables + i * 16;
if (GET_TT_LONG(p) == table) {
offset = GET_TT_LONG(p + 8);
datasize = GET_TT_LONG(p + 12);
}
}
}
if (datasize && size >= datasize && pFile) {
FXSYS_fseek(pFile, offset, FXSYS_SEEK_SET);
FXSYS_fread(buffer, datasize, 1, pFile);
}
if (pFile) {
FXSYS_fclose(pFile);
}
return datasize;
}
void CFX_FolderFontInfo::DeleteFont(void* hFont)
{
}
FX_BOOL CFX_FolderFontInfo::GetFaceName(void* hFont, CFX_ByteString& name)
{
if (hFont == NULL) {
return FALSE;
}
CFontFaceInfo* pFont = (CFontFaceInfo*)hFont;
name = pFont->m_FaceName;
return TRUE;
}
FX_BOOL CFX_FolderFontInfo::GetFontCharset(void* hFont, int& charset)
{
return FALSE;
}