| // 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/fpdfapi/parser/fpdf_parser_utility.h" |
| #include "core/fpdfdoc/cpdf_interactiveform.h" |
| #include "core/fxcrt/fx_codepage.h" |
| #include "third_party/base/check.h" |
| #include "third_party/base/notreached.h" |
| |
| CPVT_FontMap::CPVT_FontMap(CPDF_Document* pDoc, |
| CPDF_Dictionary* pResDict, |
| const RetainPtr<CPDF_Font>& pDefFont, |
| const ByteString& sDefFontAlias) |
| : m_pDocument(pDoc), |
| m_pResDict(pResDict), |
| m_pDefFont(pDefFont), |
| m_sDefFontAlias(sDefFontAlias) {} |
| |
| CPVT_FontMap::~CPVT_FontMap() = default; |
| |
| // static |
| RetainPtr<CPDF_Font> CPVT_FontMap::GetAnnotSysPDFFont( |
| CPDF_Document* pDoc, |
| CPDF_Dictionary* pResDict, |
| ByteString* pSysFontAlias) { |
| DCHECK(pSysFontAlias); |
| if (!pDoc || !pResDict) |
| return nullptr; |
| |
| CPDF_Dictionary* pFormDict = pDoc->GetRoot()->GetDictFor("AcroForm"); |
| RetainPtr<CPDF_Font> pPDFFont = |
| CPDF_InteractiveForm::AddNativeInteractiveFormFont(pFormDict, pDoc, |
| pSysFontAlias); |
| if (!pPDFFont) |
| return nullptr; |
| |
| CPDF_Dictionary* pFontList = pResDict->GetDictFor("Font"); |
| if (ValidateFontResourceDict(pFontList) && |
| !pFontList->KeyExist(*pSysFontAlias)) { |
| pFontList->SetNewFor<CPDF_Reference>(*pSysFontAlias, pDoc, |
| pPDFFont->GetFontDict()->GetObjNum()); |
| } |
| return pPDFFont; |
| } |
| |
| RetainPtr<CPDF_Font> CPVT_FontMap::GetPDFFont(int32_t nFontIndex) { |
| switch (nFontIndex) { |
| case 0: |
| return m_pDefFont; |
| case 1: |
| if (!m_pSysFont) { |
| m_pSysFont = GetAnnotSysPDFFont(m_pDocument.Get(), m_pResDict.Get(), |
| &m_sSysFontAlias); |
| } |
| return m_pSysFont; |
| 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, |
| FX_Charset charset, |
| int32_t nFontIndex) { |
| NOTREACHED(); |
| return 0; |
| } |
| |
| int32_t CPVT_FontMap::CharCodeFromUnicode(int32_t nFontIndex, uint16_t word) { |
| NOTREACHED(); |
| return 0; |
| } |
| |
| FX_Charset CPVT_FontMap::CharSetFromUnicode(uint16_t word, |
| FX_Charset nOldCharset) { |
| NOTREACHED(); |
| return FX_Charset::kANSI; |
| } |