Embed fonts information into resulting PDF file for printing.

printing/pdf_ps_metafile_linux.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PRINTING_PDF_PS_METAFILE_LINUX_H_
 #define PRINTING_PDF_PS_METAFILE_LINUX_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 46 matching lines @@
   // TODO(myhuang): I plan to also do page setup here (margins, the header
   // and the footer). At this moment, only pre-defined margins for US letter
   // paper are hard-coded here.
   // |shrink| decides the scaling factor to fit raw printing results into
   // printable area.
   bool FinishPage(float shrink);
 
   // Closes resulting PDF/PS file. No further rendering is allowed.
   void Close();
 
+  // Selects the font associated with |font_id| in |context|.
+  // Return true on success.
+  static bool SelectFontById(cairo_t* context, uint32_t font_id);
+
   // Returns size of PDF/PS contents stored in buffer |all_pages_|.
   // This function should ONLY be called after PDF/PS file is closed.
   unsigned int GetDataSize() const;
 
   // Copies PDF/PS contents stored in buffer |all_pages_| into |dst_buffer|.
   // This function should ONLY be called after PDF/PS file is closed.
   // Returns true only when success.
   bool GetData(void* dst_buffer, size_t dst_buffer_size) const;
 
   // Saves PDF/PS contents stored in buffer |all_pages_| into |filename| on
   // the disk.
   // This function should ONLY be called after PDF/PS file is closed.
   bool SaveTo(const FilePath& filename) const;
 
  private:
   // Cleans up all resources.
-  void CleanUp();
+  void CleanUpAll();
 
   FileFormat format_;
 
   // Cairo surface and context for entire PDF/PS file.
   cairo_surface_t* surface_;
   cairo_t* context_;
 
   // Cairo surface and context for current page only.
   cairo_surface_t* page_surface_;
   cairo_t* page_context_;
 
   // Buffer stores PDF/PS contents for entire PDF/PS file.
   std::string all_pages_;
 
   // Buffer stores PDF/PS contents for current page only.
   std::string current_page_;
 
   DISALLOW_COPY_AND_ASSIGN(PdfPsMetafile);
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PDF_PS_METAFILE_LINUX_H_