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