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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 <memory>
#include <utility>
#include "core/fxcrt/fx_codepage.h"
#include "core/fxge/cfx_folderfontinfo.h"
#include "core/fxge/cfx_gemodule.h"
#include "core/fxge/ifx_systemfontinfo.h"
#include "third_party/base/ptr_util.h"
#if _FXM_PLATFORM_ == _FXM_PLATFORM_LINUX_
namespace {
const size_t kLinuxGpNameSize = 6;
const char* const g_LinuxGpFontList[][kLinuxGpNameSize] = {
{"TakaoPGothic", "VL PGothic", "IPAPGothic", "VL Gothic", "Kochi Gothic",
"VL Gothic regular"},
{"TakaoGothic", "VL Gothic", "IPAGothic", "Kochi Gothic", nullptr,
"VL Gothic regular"},
{"TakaoPMincho", "IPAPMincho", "VL Gothic", "Kochi Mincho", nullptr,
"VL Gothic regular"},
{"TakaoMincho", "IPAMincho", "VL Gothic", "Kochi Mincho", nullptr,
"VL Gothic regular"},
};
const char* const g_LinuxGbFontList[] = {
"AR PL UMing CN Light", "WenQuanYi Micro Hei", "AR PL UKai CN",
};
const char* const g_LinuxB5FontList[] = {
"AR PL UMing TW Light", "WenQuanYi Micro Hei", "AR PL UKai TW",
};
const char* const g_LinuxHGFontList[] = {
"UnDotum",
};
size_t GetJapanesePreference(const char* facearr,
int weight,
int pitch_family) {
CFX_ByteString face = facearr;
if (face.Find("Gothic") >= 0 ||
face.Find("\x83\x53\x83\x56\x83\x62\x83\x4e") >= 0) {
if (face.Find("PGothic") >= 0 ||
face.Find("\x82\x6f\x83\x53\x83\x56\x83\x62\x83\x4e") >= 0) {
return 0;
}
return 1;
}
if (face.Find("Mincho") >= 0 || face.Find("\x96\xbe\x92\xa9") >= 0) {
if (face.Find("PMincho") >= 0 ||
face.Find("\x82\x6f\x96\xbe\x92\xa9") >= 0) {
return 2;
}
return 3;
}
if (!(pitch_family & FXFONT_FF_ROMAN) && weight > 400)
return 0;
return 2;
}
class CFX_LinuxFontInfo : public CFX_FolderFontInfo {
public:
CFX_LinuxFontInfo() {}
~CFX_LinuxFontInfo() override {}
void* MapFont(int weight,
bool bItalic,
int charset,
int pitch_family,
const char* family,
int& iExact) override;
bool ParseFontCfg(const char** pUserPaths);
};
void* CFX_LinuxFontInfo::MapFont(int weight,
bool bItalic,
int charset,
int pitch_family,
const char* cstr_face,
int& iExact) {
void* font = GetSubstFont(cstr_face);
if (font) {
iExact = 1;
return font;
}
bool bCJK = true;
switch (charset) {
case FX_CHARSET_ShiftJIS: {
size_t index = GetJapanesePreference(cstr_face, weight, pitch_family);
ASSERT(index < FX_ArraySize(g_LinuxGpFontList));
for (size_t i = 0; i < kLinuxGpNameSize; i++) {
auto it = m_FontList.find(g_LinuxGpFontList[index][i]);
if (it != m_FontList.end())
return it->second.get();
}
break;
}
case FX_CHARSET_ChineseSimplified: {
for (size_t i = 0; i < FX_ArraySize(g_LinuxGbFontList); ++i) {
auto it = m_FontList.find(g_LinuxGbFontList[i]);
if (it != m_FontList.end())
return it->second.get();
}
break;
}
case FX_CHARSET_ChineseTraditional: {
for (size_t i = 0; i < FX_ArraySize(g_LinuxB5FontList); ++i) {
auto it = m_FontList.find(g_LinuxB5FontList[i]);
if (it != m_FontList.end())
return it->second.get();
}
break;
}
case FX_CHARSET_Hangul: {
for (size_t i = 0; i < FX_ArraySize(g_LinuxHGFontList); ++i) {
auto it = m_FontList.find(g_LinuxHGFontList[i]);
if (it != m_FontList.end())
return it->second.get();
}
break;
}
default:
bCJK = false;
break;
}
return FindFont(weight, bItalic, charset, pitch_family, cstr_face, !bCJK);
}
bool CFX_LinuxFontInfo::ParseFontCfg(const char** pUserPaths) {
if (!pUserPaths)
return false;
for (const char** pPath = pUserPaths; *pPath; ++pPath)
AddPath(*pPath);
return true;
}
} // namespace
std::unique_ptr<IFX_SystemFontInfo> IFX_SystemFontInfo::CreateDefault(
const char** pUserPaths) {
auto pInfo = pdfium::MakeUnique<CFX_LinuxFontInfo>();
if (!pInfo->ParseFontCfg(pUserPaths)) {
pInfo->AddPath("/usr/share/fonts");
pInfo->AddPath("/usr/share/X11/fonts/Type1");
pInfo->AddPath("/usr/share/X11/fonts/TTF");
pInfo->AddPath("/usr/local/share/fonts");
}
return std::move(pInfo);
}
void CFX_GEModule::InitPlatform() {
m_pFontMgr->SetSystemFontInfo(
IFX_SystemFontInfo::CreateDefault(m_pUserFontPaths));
}
void CFX_GEModule::DestroyPlatform() {}
#endif // _FXM_PLATFORM_ == _FXM_PLATFORM_LINUX_
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