xfa/fxfa/cxfa_fontmgr.cpp

// Copyright 2014 The PDFium Authors
// 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 "xfa/fxfa/cxfa_fontmgr.h"

#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fxge/cfx_fontmgr.h"
#include "core/fxge/cfx_gemodule.h"
#include "xfa/fgas/font/cfgas_defaultfontmanager.h"
#include "xfa/fgas/font/cfgas_gefont.h"
#include "xfa/fgas/font/fgas_fontutils.h"
#include "xfa/fxfa/cxfa_ffapp.h"
#include "xfa/fxfa/cxfa_ffdoc.h"

CXFA_FontMgr::CXFA_FontMgr() = default;

CXFA_FontMgr::~CXFA_FontMgr() = default;

void CXFA_FontMgr::Trace(cppgc::Visitor* visitor) const {}

RetainPtr<CFGAS_GEFont> CXFA_FontMgr::GetFont(CXFA_FFDoc* pDoc,
                                              const WideString& wsFontFamily,
                                              uint32_t dwFontStyles) {
  auto key = std::make_pair(wsFontFamily, dwFontStyles);
  auto iter = m_FontMap.find(key);
  if (iter != m_FontMap.end())
    return iter->second;

  WideString wsEnglishName = FGAS_FontNameToEnglishName(wsFontFamily);
  RetainPtr<CFGAS_GEFont> pFont =
      pDoc->GetPDFFont(wsEnglishName, dwFontStyles, true);
  if (pFont)
    return pFont;

  pFont = CFGAS_DefaultFontManager::GetFont(wsFontFamily, dwFontStyles);
  if (!pFont) {
    pFont = pDoc->GetPDFFont(wsEnglishName, dwFontStyles, false);
    if (pFont)
      return pFont;
  }
  if (!pFont) {
    pFont = CFGAS_DefaultFontManager::GetDefaultFont(dwFontStyles);
  }
  if (!pFont) {
    pFont = CFGAS_GEFont::LoadStockFont(
        pDoc->GetPDFDoc(), ByteString::Format("%ls", wsFontFamily.c_str()));
  }
  if (!pFont)
    return nullptr;

  m_FontMap[key] = pFont;
  return pFont;
}