diff options
Diffstat (limited to 'printing')
-rw-r--r-- | printing/pdf_metafile_skia.cc | 165 | ||||
-rw-r--r-- | printing/pdf_metafile_skia.h | 74 | ||||
-rw-r--r-- | printing/printing.gyp | 5 |
3 files changed, 244 insertions, 0 deletions
diff --git a/printing/pdf_metafile_skia.cc b/printing/pdf_metafile_skia.cc new file mode 100644 index 0000000..72d8908 --- /dev/null +++ b/printing/pdf_metafile_skia.cc @@ -0,0 +1,165 @@ +// 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. + +#include "printing/pdf_metafile_skia.h" + +#include "base/eintr_wrapper.h" +#include "base/file_descriptor_posix.h" +#include "base/file_util.h" +#include "skia/ext/vector_platform_device_skia.h" +#include "third_party/skia/include/core/SkRefCnt.h" +#include "third_party/skia/include/core/SkStream.h" +#include "third_party/skia/include/pdf/SkPDFDevice.h" +#include "third_party/skia/include/pdf/SkPDFDocument.h" +#include "third_party/skia/include/pdf/SkPDFPage.h" +#include "ui/gfx/point.h" +#include "ui/gfx/rect.h" +#include "ui/gfx/size.h" + +namespace printing { + +struct PdfMetafileSkiaData { + SkRefPtr<SkPDFDevice> current_page_; + SkPDFDocument pdf_doc_; + SkDynamicMemoryWStream pdf_stream_; +}; + +PdfMetafileSkia::~PdfMetafileSkia() {} + +bool PdfMetafileSkia::Init() { + return true; +} +bool PdfMetafileSkia::InitFromData(const void* src_buffer, + uint32 src_buffer_size) { + return data_->pdf_stream_.write(src_buffer, src_buffer_size); +} + +skia::PlatformDevice* PdfMetafileSkia::StartPageForVectorCanvas( + const gfx::Size& page_size, const gfx::Point& content_origin, + const float& scale_factor) { + DCHECK(data_->current_page_.get() == NULL); + + skia::VectorPlatformDeviceSkia* device = + new skia::VectorPlatformDeviceSkia(page_size.width(), page_size.height(), + SkPDFDevice::kFlip_OriginTransform); + device->setInitialTransform(content_origin.x(), content_origin.y(), + scale_factor); + data_->current_page_ = device->PdfDevice(); + return device; +} + +bool PdfMetafileSkia::StartPage(const gfx::Size& page_size, + const gfx::Point& content_origin, + const float& scale_factor) { + NOTREACHED(); + return NULL; +} + +bool PdfMetafileSkia::FinishPage() { + DCHECK(data_->current_page_.get()); + + data_->pdf_doc_.appendPage(data_->current_page_); + data_->current_page_ = NULL; + return true; +} + +bool PdfMetafileSkia::FinishDocument() { + // Don't do anything if we've already set the data in InitFromData. + if (data_->pdf_stream_.getOffset()) + return true; + + if (data_->current_page_.get()) + FinishPage(); + return data_->pdf_doc_.emitPDF(&data_->pdf_stream_); +} + +uint32 PdfMetafileSkia::GetDataSize() const { + return data_->pdf_stream_.getOffset(); +} + +bool PdfMetafileSkia::GetData(void* dst_buffer, + uint32 dst_buffer_size) const { + if (dst_buffer_size < GetDataSize()) + return false; + + memcpy(dst_buffer, data_->pdf_stream_.getStream(), dst_buffer_size); + return true; +} + +bool PdfMetafileSkia::SaveTo(const FilePath& file_path) const { + DCHECK_GT(data_->pdf_stream_.getOffset(), 0U); + if (file_util::WriteFile(file_path, data_->pdf_stream_.getStream(), + GetDataSize()) != static_cast<int>(GetDataSize())) { + DLOG(ERROR) << "Failed to save file " << file_path.value().c_str(); + return false; + } + return true; +} + +gfx::Rect PdfMetafileSkia::GetPageBounds(unsigned int page_number) const { + // TODO(vandebo) add a method to get the page size for a given page to + // SkPDFDocument. + NOTIMPLEMENTED(); + return gfx::Rect(); +} + +unsigned int PdfMetafileSkia::GetPageCount() const { + // TODO(vandebo) add a method to get the number of pages to SkPDFDocument. + NOTIMPLEMENTED(); + return 0; +} + +gfx::NativeDrawingContext PdfMetafileSkia::context() const { + NOTREACHED(); + return NULL; +} + +#if defined(OS_WIN) +bool PdfMetafileSkia::Playback(gfx::NativeDrawingContext hdc, + const RECT* rect) const { + NOTREACHED(); + return false; +} + +bool PdfMetafileSkia::SafePlayback(gfx::NativeDrawingContext hdc) const { + NOTREACHED(); + return false; +} + +HENHMETAFILE PdfMetafileSkia::emf() const { + NOTREACHED(); + return NULL; +} +#endif // if defined(OS_WIN) + +#if defined(OS_CHROMEOS) +bool PdfMetafileSkia::SaveToFD(const base::FileDescriptor& fd) const { + DCHECK_GT(data_->pdf_stream_.getOffset(), 0U); + + if (fd.fd < 0) { + DLOG(ERROR) << "Invalid file descriptor!"; + return false; + } + + bool result = true; + if (file_util::WriteFileDescriptor(fd.fd, data_->pdf_stream_.getStream(), + GetDataSize()) != + static_cast<int>(GetDataSize())) { + DLOG(ERROR) << "Failed to save file with fd " << fd.fd; + result = false; + } + + if (fd.auto_close) { + if (HANDLE_EINTR(close(fd.fd)) < 0) { + DPLOG(WARNING) << "close"; + result = false; + } + } + return result; +} +#endif + +PdfMetafileSkia::PdfMetafileSkia() : data_(new PdfMetafileSkiaData) {} + +} // namespace printing diff --git a/printing/pdf_metafile_skia.h b/printing/pdf_metafile_skia.h new file mode 100644 index 0000000..4e8a003 --- /dev/null +++ b/printing/pdf_metafile_skia.h @@ -0,0 +1,74 @@ +// 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_SKIA_H_ +#define PRINTING_PDF_METAFILE_SKIA_H_ + +#include "base/basictypes.h" +#include "base/logging.h" +#include "base/scoped_ptr.h" +#include "build/build_config.h" +#include "printing/native_metafile.h" + +#if defined(OS_WIN) +#include <windows.h> +#endif + +namespace printing { + +struct PdfMetafileSkiaData; + +// This class uses Skia graphics library to generate a PDF document. +class PdfMetafileSkia : public NativeMetafile { + public: + virtual ~PdfMetafileSkia(); + + // NativeMetafile interface + virtual bool 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 gfx::NativeDrawingContext context() const; + +#if defined(OS_WIN) + virtual bool Playback(gfx::NativeDrawingContext hdc, const RECT* rect) const; + virtual bool SafePlayback(gfx::NativeDrawingContext hdc) const; + virtual HENHMETAFILE emf() const; +#endif // if defined(OS_WIN) + +#if defined(OS_CHROMEOS) + virtual bool SaveToFD(const base::FileDescriptor& fd) const = 0; +#endif // if defined(OS_CHROMEOS) + + protected: + PdfMetafileSkia(); + + private: + friend class NativeMetafileFactory; + + scoped_ptr<PdfMetafileSkiaData> data_; + + DISALLOW_COPY_AND_ASSIGN(PdfMetafileSkia); +}; + +} // namespace printing + +#endif // PRINTING_PDF_METAFILE_MAC_H_ diff --git a/printing/printing.gyp b/printing/printing.gyp index ae61a41..87b9485 100644 --- a/printing/printing.gyp +++ b/printing/printing.gyp @@ -51,6 +51,8 @@ 'pdf_metafile_cairo_linux.h', 'pdf_metafile_cg_mac.cc', 'pdf_metafile_cg_mac.h', + 'pdf_metafile_skia.h', + 'pdf_metafile_skia.cc', 'printed_document_cairo.cc', 'printed_document.cc', 'printed_document.h', @@ -107,6 +109,9 @@ '../build/linux/system.gyp:gtkprint', ], }], + ['OS=="mac"', + {'sources/': [['exclude', 'pdf_metafile_skia\\.(cc|h)$']]} + ], ['OS=="win"', { 'defines': [ # PRINT_BACKEND_AVAILABLE disables the default dummy implementation |