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Unified Diff: printing/native_metafile.h

Issue 6826027: Connect the right metafiles for print preview on Linux and Windows. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fix compile problems Created 9 years, 8 months ago
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Index: printing/native_metafile.h
diff --git a/printing/native_metafile.h b/printing/native_metafile.h
deleted file mode 100644
index 8bb96511f222eaf03a146def6b8c020c7cbad50f..0000000000000000000000000000000000000000
--- a/printing/native_metafile.h
+++ /dev/null
@@ -1,152 +0,0 @@
-// 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_NATIVE_METAFILE_H_
-#define PRINTING_NATIVE_METAFILE_H_
-
-#include "base/basictypes.h"
-#include "build/build_config.h"
-#include "ui/gfx/native_widget_types.h"
-
-#if defined(OS_WIN)
-#include <windows.h>
-#include <vector>
-#elif defined(OS_MACOSX)
-#include <ApplicationServices/ApplicationServices.h>
-#include <CoreFoundation/CoreFoundation.h>
-#include "base/mac/scoped_cftyperef.h"
-#endif
-
-class FilePath;
-
-namespace gfx {
-class Point;
-class Rect;
-class Size;
-}
-
-namespace skia {
-class PlatformDevice;
-}
-
-#if defined(OS_CHROMEOS)
-namespace base {
-class FileDescriptor;
-}
-#endif
-
-namespace printing {
-
-// This class creates a graphics context that renders into a data stream
-// (usually PDF or EMF).
-class NativeMetafile {
- public:
- virtual ~NativeMetafile() {}
-
- // Initializes a fresh new metafile for rendering. Returns false on failure.
- // Note: It should only be called from within the renderer process to allocate
- // rendering resources.
- virtual bool Init() = 0;
-
- // Initializes the metafile with the data in |src_buffer|. Returns true
- // on success.
- // Note: It should only be called from within the browser process.
- virtual bool InitFromData(const void* src_buffer, uint32 src_buffer_size) = 0;
-
- // This method calls StartPage and then returns an appropriate
- // VectorPlatformDevice implementation bound to the context created by
- // StartPage or NULL on error.
- virtual skia::PlatformDevice* StartPageForVectorCanvas(
- const gfx::Size& page_size, const gfx::Point& content_origin,
- const float& scale_factor) = 0;
-
- // Prepares a context for rendering a new page at the specified
- // |content_origin| with the given |page_size| and a |scale_factor| to use for
- // the drawing. The units are in points (=1/72 in). Returns true on success.
- virtual bool StartPage(const gfx::Size& page_size,
- const gfx::Point& content_origin,
- const float& scale_factor) = 0;
-
- // Closes the current page and destroys the context used in rendering that
- // page. The results of current page will be appended into the underlying
- // data stream. Returns true on success.
- virtual bool FinishPage() = 0;
-
- // Closes the metafile. No further rendering is allowed (the current page
- // is implicitly closed).
- virtual bool FinishDocument() = 0;
-
- // Returns the size of the underlying data stream. Only valid after Close()
- // has been called.
- virtual uint32 GetDataSize() const = 0;
-
- // Copies the first |dst_buffer_size| bytes of the underlying data stream into
- // |dst_buffer|. This function should ONLY be called after Close() is invoked.
- // Returns true if the copy succeeds.
- virtual bool GetData(void* dst_buffer, uint32 dst_buffer_size) const = 0;
-
- // Saves the underlying data to the given file. This function should ONLY be
- // called after the metafile is closed. Returns true if writing succeeded.
- virtual bool SaveTo(const FilePath& file_path) const = 0;
-
- // Returns the bounds of the given page. Pages use a 1-based index.
- virtual gfx::Rect GetPageBounds(unsigned int page_number) const = 0;
- virtual unsigned int GetPageCount() const = 0;
-
- // Get the context for rendering to the PDF.
- virtual gfx::NativeDrawingContext context() const = 0;
-
-#if defined(OS_WIN)
- // "Plays" the EMF buffer in a HDC. It is the same effect as calling the
- // original GDI function that were called when recording the EMF. |rect| is in
- // "logical units" and is optional. If |rect| is NULL, the natural EMF bounds
- // are used.
- // Note: Windows has been known to have stack buffer overflow in its GDI
- // functions, whether used directly or indirectly through precompiled EMF
- // data. We have to accept the risk here. Since it is used only for printing,
- // it requires user intervention.
- virtual bool Playback(gfx::NativeDrawingContext hdc,
- const RECT* rect) const = 0;
-
- // The slow version of Playback(). It enumerates all the records and play them
- // back in the HDC. The trick is that it skip over the records known to have
- // issue with some printers. See Emf::Record::SafePlayback implementation for
- // details.
- virtual bool SafePlayback(gfx::NativeDrawingContext hdc) const = 0;
-
- virtual HENHMETAFILE emf() const = 0;
-#elif defined(OS_MACOSX)
- // Renders the given page into |rect| in the given context.
- // Pages use a 1-based index. The rendering uses the following arguments
- // to determine scaling and translation factors.
- // |shrink_to_fit| specifies whether the output should be shrunk to fit the
- // supplied |rect| if the page size is larger than |rect| in any dimension.
- // If this is false, parts of the PDF page that lie outside the bounds will be
- // clipped.
- // |stretch_to_fit| specifies whether the output should be stretched to fit
- // the supplied bounds if the page size is smaller than |rect| in all
- // dimensions.
- // |center_horizontally| specifies whether the final image (after any scaling
- // is done) should be centered horizontally within the given |rect|.
- // |center_vertically| specifies whether the final image (after any scaling
- // is done) should be centered vertically within the given |rect|.
- // Note that all scaling preserves the original aspect ratio of the page.
- virtual bool RenderPage(unsigned int page_number,
- gfx::NativeDrawingContext context,
- const CGRect rect,
- bool shrink_to_fit,
- bool stretch_to_fit,
- bool center_horizontally,
- bool center_vertically) const = 0;
-#elif defined(OS_CHROMEOS)
- // Saves the underlying data to the file associated with fd. This function
- // should ONLY be called after the metafile is closed.
- // Returns true if writing succeeded.
- virtual bool SaveToFD(const base::FileDescriptor& fd) const = 0;
-#endif // if defined(OS_CHROMEOS)
-};
-
-} // namespace printing
-
-#endif // PRINTING_NATIVE_METAFILE_H_
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