1 files changed, 92 insertions, 0 deletions
diff --git a/printing/pdf_metafile_cairo_linux.h b/printing/pdf_metafile_cairo_linux.h
new file mode 100644
index 0000000..f3a80aa
--- /dev/null
+++ b/printing/pdf_metafile_cairo_linux.h
@@ -0,0 +1,92 @@
+// Copyright (c) 2011 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_METAFILE_CAIRO_LINUX_H_
+#define PRINTING_PDF_METAFILE_CAIRO_LINUX_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/gtest_prod_util.h"
+#include "printing/native_metafile.h"
+
+namespace gfx {
+class Point;
+class Rect;
+class Size;
+}
+
+typedef struct _cairo_surface cairo_surface_t;
+
+namespace printing {
+
+// This class uses Cairo graphics library to generate PDF stream and stores
+// rendering results in a string buffer.
+class PdfMetafileCairo : public NativeMetafile {
+ public:
+  virtual ~PdfMetafileCairo();
+
+  // NativeMetafile methods.
+  virtual bool Init();
+
+  //  Calling InitFromData() sets the data for this metafile and masks data
+  //  induced by previous calls to Init() or InitFromData(), even if drawing
+  //  continues on the surface returned by a previous call to Init().
+  virtual bool InitFromData(const void* src_buffer, uint32 src_buffer_size);
+
+  virtual skia::PlatformDevice* StartPageForVectorCanvas(
+      const gfx::Size& page_size, const gfx::Point& content_origin,
+      const float& scale_factor);
+  virtual bool StartPage(const gfx::Size& page_size,
+                         const gfx::Point& content_origin,
+                         const float& scale_factor);
+  virtual bool FinishPage();
+  virtual bool FinishDocument();
+
+  virtual uint32 GetDataSize() const;
+  virtual bool GetData(void* dst_buffer, uint32 dst_buffer_size) const;
+
+  virtual bool SaveTo(const FilePath& file_path) const;
+
+  virtual gfx::Rect GetPageBounds(unsigned int page_number) const;
+  virtual unsigned int GetPageCount() const;
+
+  virtual cairo_t* context() const;
+
+#if defined(OS_CHROMEOS)
+  virtual bool SaveToFD(const base::FileDescriptor& fd) const;
+#endif  // if defined(OS_CHROMEOS)
+
+ protected:
+  PdfMetafileCairo();
+
+ private:
+  friend class NativeMetafileFactory;
+  FRIEND_TEST_ALL_PREFIXES(PdfMetafileCairoTest, Pdf);
+
+  // Cleans up all resources.
+  void CleanUpAll();
+
+  // Cairo surface and context for entire PDF file.
+  cairo_surface_t* surface_;
+  cairo_t* context_;
+
+  // Buffer stores PDF contents for entire PDF file.
+  std::string cairo_data_;
+  // Buffer stores PDF contents. It can only be populated from InitFromData().
+  // Any calls to StartPage(), FinishPage(), FinishDocument() do not affect
+  // this buffer.
+  // Note: Such calls will result in DCHECK errors if Init() has not been called
+  // first.
+  std::string raw_data_;
+  // Points to the appropriate buffer depending on the way the object was
+  // initialized (Init() vs InitFromData()).
+  std::string* current_data_;
+
+  DISALLOW_COPY_AND_ASSIGN(PdfMetafileCairo);
+};
+
+}  // namespace printing
+
+#endif  // PRINTING_PDF_METAFILE_CAIRO_LINUX_H_