// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "public/fpdf_sysfontinfo.h"
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#include "core/fxge/include/fx_font.h"
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#include "core/fxge/include/fx_ge.h"
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#include "fpdfsdk/include/fsdk_define.h"
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#include "fpdfsdk/pdfwindow/PWL_FontMap.h"
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class CFX_ExternalFontInfo final : public IFX_SystemFontInfo {
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public:
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explicit CFX_ExternalFontInfo(FPDF_SYSFONTINFO* pInfo) : m_pInfo(pInfo) {}
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~CFX_ExternalFontInfo() override {
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if (m_pInfo->Release)
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m_pInfo->Release(m_pInfo);
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}
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FX_BOOL EnumFontList(CFX_FontMapper* pMapper) override {
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if (m_pInfo->EnumFonts) {
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m_pInfo->EnumFonts(m_pInfo, pMapper);
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return TRUE;
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}
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return FALSE;
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}
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void* MapFont(int weight,
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FX_BOOL bItalic,
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int charset,
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int pitch_family,
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const FX_CHAR* family,
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int& iExact) override {
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if (!m_pInfo->MapFont)
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return nullptr;
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return m_pInfo->MapFont(m_pInfo, weight, bItalic, charset, pitch_family,
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family, &iExact);
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}
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void* GetFont(const FX_CHAR* family) override {
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if (!m_pInfo->GetFont)
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return nullptr;
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return m_pInfo->GetFont(m_pInfo, family);
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}
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uint32_t GetFontData(void* hFont,
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uint32_t table,
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uint8_t* buffer,
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uint32_t size) override {
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if (!m_pInfo->GetFontData)
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return 0;
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return m_pInfo->GetFontData(m_pInfo, hFont, table, buffer, size);
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}
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FX_BOOL GetFaceName(void* hFont, CFX_ByteString& name) override {
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if (!m_pInfo->GetFaceName)
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return FALSE;
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uint32_t size = m_pInfo->GetFaceName(m_pInfo, hFont, nullptr, 0);
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if (size == 0)
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return FALSE;
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char* buffer = FX_Alloc(char, size);
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size = m_pInfo->GetFaceName(m_pInfo, hFont, buffer, size);
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name = CFX_ByteString(buffer, size);
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FX_Free(buffer);
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return TRUE;
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}
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FX_BOOL GetFontCharset(void* hFont, int& charset) override {
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if (!m_pInfo->GetFontCharset)
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return FALSE;
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charset = m_pInfo->GetFontCharset(m_pInfo, hFont);
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return TRUE;
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}
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void DeleteFont(void* hFont) override {
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if (m_pInfo->DeleteFont)
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m_pInfo->DeleteFont(m_pInfo, hFont);
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}
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private:
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FPDF_SYSFONTINFO* const m_pInfo;
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};
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DLLEXPORT void STDCALL FPDF_AddInstalledFont(void* mapper,
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const char* name,
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int charset) {
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CFX_FontMapper* pMapper = reinterpret_cast<CFX_FontMapper*>(mapper);
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pMapper->AddInstalledFont(name, charset);
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}
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DLLEXPORT void STDCALL FPDF_SetSystemFontInfo(FPDF_SYSFONTINFO* pFontInfoExt) {
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if (pFontInfoExt->version != 1)
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return;
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CFX_GEModule::Get()->GetFontMgr()->SetSystemFontInfo(
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std::unique_ptr<IFX_SystemFontInfo>(
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new CFX_ExternalFontInfo(pFontInfoExt)));
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}
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DLLEXPORT const FPDF_CharsetFontMap* STDCALL FPDF_GetDefaultTTFMap() {
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return CPWL_FontMap::defaultTTFMap;
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}
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struct FPDF_SYSFONTINFO_DEFAULT : public FPDF_SYSFONTINFO {
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IFX_SystemFontInfo* m_pFontInfo;
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};
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static void DefaultRelease(struct _FPDF_SYSFONTINFO* pThis) {
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auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
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// TODO(thestig): Should this be set to nullptr too?
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delete pDefault->m_pFontInfo;
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}
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static void DefaultEnumFonts(struct _FPDF_SYSFONTINFO* pThis, void* pMapper) {
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auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
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pDefault->m_pFontInfo->EnumFontList((CFX_FontMapper*)pMapper);
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}
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static void* DefaultMapFont(struct _FPDF_SYSFONTINFO* pThis,
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int weight,
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int bItalic,
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int charset,
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int pitch_family,
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const char* family,
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int* bExact) {
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auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
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return pDefault->m_pFontInfo->MapFont(weight, bItalic, charset, pitch_family,
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family, *bExact);
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}
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void* DefaultGetFont(struct _FPDF_SYSFONTINFO* pThis, const char* family) {
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auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
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return pDefault->m_pFontInfo->GetFont(family);
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}
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static unsigned long DefaultGetFontData(struct _FPDF_SYSFONTINFO* pThis,
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void* hFont,
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unsigned int table,
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unsigned char* buffer,
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unsigned long buf_size) {
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auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
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return pDefault->m_pFontInfo->GetFontData(hFont, table, buffer, buf_size);
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}
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static unsigned long DefaultGetFaceName(struct _FPDF_SYSFONTINFO* pThis,
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void* hFont,
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char* buffer,
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unsigned long buf_size) {
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CFX_ByteString name;
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auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
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if (!pDefault->m_pFontInfo->GetFaceName(hFont, name))
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return 0;
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if (name.GetLength() >= (long)buf_size)
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return name.GetLength() + 1;
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FXSYS_strcpy(buffer, name.c_str());
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return name.GetLength() + 1;
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}
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static int DefaultGetFontCharset(struct _FPDF_SYSFONTINFO* pThis, void* hFont) {
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int charset;
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auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
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if (!pDefault->m_pFontInfo->GetFontCharset(hFont, charset))
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return 0;
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return charset;
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}
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static void DefaultDeleteFont(struct _FPDF_SYSFONTINFO* pThis, void* hFont) {
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auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
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pDefault->m_pFontInfo->DeleteFont(hFont);
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}
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DLLEXPORT FPDF_SYSFONTINFO* STDCALL FPDF_GetDefaultSystemFontInfo() {
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std::unique_ptr<IFX_SystemFontInfo> pFontInfo =
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IFX_SystemFontInfo::CreateDefault(nullptr);
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if (!pFontInfo)
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return nullptr;
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FPDF_SYSFONTINFO_DEFAULT* pFontInfoExt =
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FX_Alloc(FPDF_SYSFONTINFO_DEFAULT, 1);
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pFontInfoExt->DeleteFont = DefaultDeleteFont;
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pFontInfoExt->EnumFonts = DefaultEnumFonts;
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pFontInfoExt->GetFaceName = DefaultGetFaceName;
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pFontInfoExt->GetFont = DefaultGetFont;
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pFontInfoExt->GetFontCharset = DefaultGetFontCharset;
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pFontInfoExt->GetFontData = DefaultGetFontData;
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pFontInfoExt->MapFont = DefaultMapFont;
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pFontInfoExt->Release = DefaultRelease;
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pFontInfoExt->version = 1;
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pFontInfoExt->m_pFontInfo = pFontInfo.release();
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return pFontInfoExt;
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}
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