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// Copyright 2016 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 "core/fpdfdoc/cpvt_fontmap.h"
#include "core/fpdfapi/font/cpdf_font.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fpdfapi/parser/cpdf_reference.h"
#include "core/fpdfdoc/cpdf_interactiveform.h"
#include "core/fxcrt/fx_codepage.h"
#include "third_party/base/logging.h"
CPVT_FontMap::CPVT_FontMap(CPDF_Document* pDoc,
CPDF_Dictionary* pResDict,
CPDF_Font* pDefFont,
const ByteString& sDefFontAlias)
: m_pDocument(pDoc),
m_pResDict(pResDict),
m_pDefFont(pDefFont),
m_sDefFontAlias(sDefFontAlias) {}
CPVT_FontMap::~CPVT_FontMap() {}
// static
CPDF_Font* CPVT_FontMap::GetAnnotSysPDFFont(CPDF_Document* pDoc,
CPDF_Dictionary* pResDict,
ByteString* sSysFontAlias) {
if (!pDoc || !pResDict)
return nullptr;
CPDF_Dictionary* pFormDict = pDoc->GetRoot()->GetDictFor("AcroForm");
CPDF_Font* pPDFFont =
AddNativeInteractiveFormFont(pFormDict, pDoc, sSysFontAlias);
if (!pPDFFont)
return nullptr;
CPDF_Dictionary* pFontList = pResDict->GetDictFor("Font");
if (pFontList && !pFontList->KeyExist(*sSysFontAlias)) {
pFontList->SetFor(*sSysFontAlias,
pPDFFont->GetFontDict()->MakeReference(pDoc));
}
return pPDFFont;
}
CPDF_Font* CPVT_FontMap::GetPDFFont(int32_t nFontIndex) {
switch (nFontIndex) {
case 0:
return m_pDefFont.Get();
case 1:
if (!m_pSysFont) {
m_pSysFont = GetAnnotSysPDFFont(m_pDocument.Get(), m_pResDict.Get(),
&m_sSysFontAlias);
}
return m_pSysFont.Get();
default:
return nullptr;
}
}
ByteString CPVT_FontMap::GetPDFFontAlias(int32_t nFontIndex) {
switch (nFontIndex) {
case 0:
return m_sDefFontAlias;
case 1:
if (!m_pSysFont) {
m_pSysFont = GetAnnotSysPDFFont(m_pDocument.Get(), m_pResDict.Get(),
&m_sSysFontAlias);
}
return m_sSysFontAlias;
default:
return ByteString();
}
}
int32_t CPVT_FontMap::GetWordFontIndex(uint16_t word,
int32_t charset,
int32_t nFontIndex) {
NOTREACHED();
return 0;
}
int32_t CPVT_FontMap::CharCodeFromUnicode(int32_t nFontIndex, uint16_t word) {
NOTREACHED();
return 0;
}
int32_t CPVT_FontMap::CharSetFromUnicode(uint16_t word, int32_t nOldCharset) {
NOTREACHED();
return FX_CHARSET_ANSI;
}
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