Move CXFA_PDFFontMgr to CFGAS_PDFFontMgr

XFA bits passed into the PDFFontMgr are just used to get the
CPDF_Document and the CFGAS_FontMgr. This CL changes the code to pass
those two things into the constructor. Then, the fxfa/cxfa_pdffontmgr.*
code has been moved to fgas/cfgas_pdffontmgr.* to show it doesn't depend
on any of the XFA classes.

Change-Id: I21d791869e2a32ffedfd7c87bb3bbd035232d991
Reviewed-on: https://pdfium-review.googlesource.com/14550
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/xfa/fgas/font/cfgas_pdffontmgr.h b/xfa/fgas/font/cfgas_pdffontmgr.h
new file mode 100644
index 0000000000..8a09a95bd1
--- /dev/null
+++ b/xfa/fgas/font/cfgas_pdffontmgr.h
@@ -0,0 +1,59 @@
+// Copyright 2017 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
+
+#ifndef XFA_FGAS_FONT_CFGAS_PDFFONTMGR_H_
+#define XFA_FGAS_FONT_CFGAS_PDFFONTMGR_H_
+
+#include <map>
+
+#include "core/fpdfapi/parser/cpdf_dictionary.h"
+#include "core/fpdfapi/parser/cpdf_document.h"
+#include "core/fxcrt/cfx_observable.h"
+#include "core/fxcrt/cfx_retain_ptr.h"
+#include "core/fxcrt/fx_string.h"
+
+class CFGAS_FontMgr;
+class CFGAS_GEFont;
+class CPDF_Document;
+class CPDF_Font;
+
+class CFGAS_PDFFontMgr : public CFX_Observable<CFGAS_PDFFontMgr> {
+ public:
+  explicit CFGAS_PDFFontMgr(CPDF_Document* pDoc, CFGAS_FontMgr* pFontMgr);
+  ~CFGAS_PDFFontMgr();
+
+  CFX_RetainPtr<CFGAS_GEFont> GetFont(const WideStringView& wsFontFamily,
+                                      uint32_t dwFontStyles,
+                                      CPDF_Font** pPDFFont,
+                                      bool bStrictMatch);
+  bool GetCharWidth(const CFX_RetainPtr<CFGAS_GEFont>& pFont,
+                    wchar_t wUnicode,
+                    bool bCharCode,
+                    int32_t* pWidth);
+  void SetFont(const CFX_RetainPtr<CFGAS_GEFont>& pFont, CPDF_Font* pPDFFont);
+
+ private:
+  CFX_RetainPtr<CFGAS_GEFont> FindFont(const ByteString& strFamilyName,
+                                       bool bBold,
+                                       bool bItalic,
+                                       CPDF_Font** pPDFFont,
+                                       bool bStrictMatch);
+  ByteString PsNameToFontName(const ByteString& strPsName,
+                              bool bBold,
+                              bool bItalic);
+  bool PsNameMatchDRFontName(const ByteStringView& bsPsName,
+                             bool bBold,
+                             bool bItalic,
+                             const ByteString& bsDRFontName,
+                             bool bStrictMatch);
+
+  CFX_UnownedPtr<CPDF_Document> const m_pDoc;
+  CFX_UnownedPtr<CFGAS_FontMgr> const m_pFontMgr;
+  std::map<CFX_RetainPtr<CFGAS_GEFont>, CPDF_Font*> m_FDE2PDFFont;
+  std::map<ByteString, CFX_RetainPtr<CFGAS_GEFont>> m_FontMap;
+};
+
+#endif  // XFA_FGAS_FONT_CFGAS_PDFFONTMGR_H_