blob: 4c74d5a242a4b9c4ae6abfd0a0f56bab5b631e66 [file] [log] [blame]
// 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 "fpdfsdk/formfiller/cba_fontmap.h"
#include "core/fpdfapi/fpdf_font/include/cpdf_font.h"
#include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_simple_parser.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h"
#include "fpdfsdk/include/fsdk_baseannot.h"
CBA_FontMap::CBA_FontMap(CPDFSDK_Annot* pAnnot,
CFX_SystemHandler* pSystemHandler)
: CPWL_FontMap(pSystemHandler),
m_pDocument(NULL),
m_pAnnotDict(NULL),
m_pDefaultFont(NULL),
m_sAPType("N") {
CPDF_Page* pPage = pAnnot->GetPDFPage();
m_pDocument = pPage->m_pDocument;
m_pAnnotDict = pAnnot->GetPDFAnnot()->GetAnnotDict();
Initialize();
}
CBA_FontMap::~CBA_FontMap() {}
void CBA_FontMap::Reset() {
Empty();
m_pDefaultFont = NULL;
m_sDefaultFontName = "";
}
void CBA_FontMap::Initialize() {
int32_t nCharset = DEFAULT_CHARSET;
if (!m_pDefaultFont) {
m_pDefaultFont = GetAnnotDefaultFont(m_sDefaultFontName);
if (m_pDefaultFont) {
if (const CFX_SubstFont* pSubstFont = m_pDefaultFont->GetSubstFont()) {
nCharset = pSubstFont->m_Charset;
} else {
if (m_sDefaultFontName == "Wingdings" ||
m_sDefaultFontName == "Wingdings2" ||
m_sDefaultFontName == "Wingdings3" ||
m_sDefaultFontName == "Webdings")
nCharset = SYMBOL_CHARSET;
else
nCharset = ANSI_CHARSET;
}
AddFontData(m_pDefaultFont, m_sDefaultFontName, nCharset);
AddFontToAnnotDict(m_pDefaultFont, m_sDefaultFontName);
}
}
if (nCharset != ANSI_CHARSET)
CPWL_FontMap::Initialize();
}
void CBA_FontMap::SetDefaultFont(CPDF_Font* pFont,
const CFX_ByteString& sFontName) {
ASSERT(pFont);
if (m_pDefaultFont)
return;
m_pDefaultFont = pFont;
m_sDefaultFontName = sFontName;
int32_t nCharset = DEFAULT_CHARSET;
if (const CFX_SubstFont* pSubstFont = m_pDefaultFont->GetSubstFont())
nCharset = pSubstFont->m_Charset;
AddFontData(m_pDefaultFont, m_sDefaultFontName, nCharset);
}
CPDF_Font* CBA_FontMap::FindFontSameCharset(CFX_ByteString& sFontAlias,
int32_t nCharset) {
if (m_pAnnotDict->GetStringBy("Subtype") == "Widget") {
CPDF_Document* pDocument = GetDocument();
CPDF_Dictionary* pRootDict = pDocument->GetRoot();
if (!pRootDict)
return NULL;
CPDF_Dictionary* pAcroFormDict = pRootDict->GetDictBy("AcroForm");
if (!pAcroFormDict)
return NULL;
CPDF_Dictionary* pDRDict = pAcroFormDict->GetDictBy("DR");
if (!pDRDict)
return NULL;
return FindResFontSameCharset(pDRDict, sFontAlias, nCharset);
}
return NULL;
}
CPDF_Document* CBA_FontMap::GetDocument() {
return m_pDocument;
}
CPDF_Font* CBA_FontMap::FindResFontSameCharset(CPDF_Dictionary* pResDict,
CFX_ByteString& sFontAlias,
int32_t nCharset) {
if (!pResDict)
return NULL;
CPDF_Dictionary* pFonts = pResDict->GetDictBy("Font");
if (!pFonts)
return NULL;
CPDF_Document* pDocument = GetDocument();
CPDF_Font* pFind = NULL;
for (const auto& it : *pFonts) {
const CFX_ByteString& csKey = it.first;
CPDF_Object* pObj = it.second;
if (!pObj)
continue;
CPDF_Dictionary* pElement = ToDictionary(pObj->GetDirect());
if (!pElement)
continue;
if (pElement->GetStringBy("Type") != "Font")
continue;
CPDF_Font* pFont = pDocument->LoadFont(pElement);
if (!pFont)
continue;
const CFX_SubstFont* pSubst = pFont->GetSubstFont();
if (!pSubst)
continue;
if (pSubst->m_Charset == nCharset) {
sFontAlias = csKey;
pFind = pFont;
}
}
return pFind;
}
void CBA_FontMap::AddedFont(CPDF_Font* pFont,
const CFX_ByteString& sFontAlias) {
AddFontToAnnotDict(pFont, sFontAlias);
}
void CBA_FontMap::AddFontToAnnotDict(CPDF_Font* pFont,
const CFX_ByteString& sAlias) {
if (!pFont)
return;
CPDF_Dictionary* pAPDict = m_pAnnotDict->GetDictBy("AP");
if (!pAPDict) {
pAPDict = new CPDF_Dictionary;
m_pAnnotDict->SetAt("AP", pAPDict);
}
// to avoid checkbox and radiobutton
CPDF_Object* pObject = pAPDict->GetObjectBy(m_sAPType);
if (ToDictionary(pObject))
return;
CPDF_Stream* pStream = pAPDict->GetStreamBy(m_sAPType);
if (!pStream) {
pStream = new CPDF_Stream(NULL, 0, NULL);
int32_t objnum = m_pDocument->AddIndirectObject(pStream);
pAPDict->SetAtReference(m_sAPType, m_pDocument, objnum);
}
CPDF_Dictionary* pStreamDict = pStream->GetDict();
if (!pStreamDict) {
pStreamDict = new CPDF_Dictionary;
pStream->InitStream(NULL, 0, pStreamDict);
}
if (pStreamDict) {
CPDF_Dictionary* pStreamResList = pStreamDict->GetDictBy("Resources");
if (!pStreamResList) {
pStreamResList = new CPDF_Dictionary();
pStreamDict->SetAt("Resources", pStreamResList);
}
if (pStreamResList) {
CPDF_Dictionary* pStreamResFontList = pStreamResList->GetDictBy("Font");
if (!pStreamResFontList) {
pStreamResFontList = new CPDF_Dictionary;
int32_t objnum = m_pDocument->AddIndirectObject(pStreamResFontList);
pStreamResList->SetAtReference("Font", m_pDocument, objnum);
}
if (!pStreamResFontList->KeyExist(sAlias))
pStreamResFontList->SetAtReference(sAlias, m_pDocument,
pFont->GetFontDict());
}
}
}
CPDF_Font* CBA_FontMap::GetAnnotDefaultFont(CFX_ByteString& sAlias) {
CPDF_Dictionary* pAcroFormDict = NULL;
const bool bWidget = (m_pAnnotDict->GetStringBy("Subtype") == "Widget");
if (bWidget) {
if (CPDF_Dictionary* pRootDict = m_pDocument->GetRoot())
pAcroFormDict = pRootDict->GetDictBy("AcroForm");
}
CFX_ByteString sDA;
CPDF_Object* pObj = FPDF_GetFieldAttr(m_pAnnotDict, "DA");
if (pObj)
sDA = pObj->GetString();
if (bWidget) {
if (sDA.IsEmpty()) {
pObj = FPDF_GetFieldAttr(pAcroFormDict, "DA");
sDA = pObj ? pObj->GetString() : CFX_ByteString();
}
}
CPDF_Dictionary* pFontDict = NULL;
if (!sDA.IsEmpty()) {
CPDF_SimpleParser syntax(sDA.AsStringC());
syntax.FindTagParamFromStart("Tf", 2);
CFX_ByteString sFontName(syntax.GetWord());
sAlias = PDF_NameDecode(sFontName).Mid(1);
if (CPDF_Dictionary* pDRDict = m_pAnnotDict->GetDictBy("DR"))
if (CPDF_Dictionary* pDRFontDict = pDRDict->GetDictBy("Font"))
pFontDict = pDRFontDict->GetDictBy(sAlias);
if (!pFontDict)
if (CPDF_Dictionary* pAPDict = m_pAnnotDict->GetDictBy("AP"))
if (CPDF_Dictionary* pNormalDict = pAPDict->GetDictBy("N"))
if (CPDF_Dictionary* pNormalResDict =
pNormalDict->GetDictBy("Resources"))
if (CPDF_Dictionary* pResFontDict =
pNormalResDict->GetDictBy("Font"))
pFontDict = pResFontDict->GetDictBy(sAlias);
if (bWidget) {
if (!pFontDict) {
if (pAcroFormDict) {
if (CPDF_Dictionary* pDRDict = pAcroFormDict->GetDictBy("DR"))
if (CPDF_Dictionary* pDRFontDict = pDRDict->GetDictBy("Font"))
pFontDict = pDRFontDict->GetDictBy(sAlias);
}
}
}
}
return pFontDict ? m_pDocument->LoadFont(pFontDict) : nullptr;
}
void CBA_FontMap::SetAPType(const CFX_ByteString& sAPType) {
m_sAPType = sAPType;
Reset();
Initialize();
}