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Diffstat (limited to 'chromium/pdf/pdf.h')
| -rw-r--r-- | chromium/pdf/pdf.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/chromium/pdf/pdf.h b/chromium/pdf/pdf.h new file mode 100644 index 00000000000..342757f2462 --- /dev/null +++ b/chromium/pdf/pdf.h @@ -0,0 +1,113 @@ +// Copyright (c) 2010 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 PDF_PDF_H_ +#define PDF_PDF_H_ + +#include "ppapi/c/ppb.h" +#include "ppapi/cpp/module.h" + +namespace chrome_pdf { + +class PDFModule : public pp::Module { + public: + PDFModule(); + ~PDFModule() override; + + // pp::Module implementation. + bool Init() override; + pp::Instance* CreateInstance(PP_Instance instance) override; +}; + +int PPP_InitializeModule(PP_Module module_id, + PPB_GetInterface get_browser_interface); +void PPP_ShutdownModule(); +const void* PPP_GetInterface(const char* interface_name); + +#if defined(OS_WIN) +// |pdf_buffer| is the buffer that contains the entire PDF document to be +// rendered. +// |buffer_size| is the size of |pdf_buffer| in bytes. +// |page_number| is the 0-based index of the page to be rendered. +// |dc| is the device context to render into. +// |dpi| and |dpi_y| is the resolution. If the value is -1, the dpi from the DC +// will be used. +// |bounds_origin_x|, |bounds_origin_y|, |bounds_width| and |bounds_height| +// specify a bounds rectangle within the DC in which to render the PDF +// page. +// |fit_to_bounds| specifies whether the output should be shrunk to fit the +// supplied bounds if the page size is larger than the bounds in any +// dimension. If this is false, parts of the PDF page that lie outside +// the bounds will be clipped. +// |stretch_to_bounds| specifies whether the output should be stretched to fit +// the supplied bounds if the page size is smaller than the bounds in any +// dimension. +// If both |fit_to_bounds| and |stretch_to_bounds| are true, then +// |fit_to_bounds| is honored first. +// |keep_aspect_ratio| If any scaling is to be done is true, this flag +// specifies whether the original aspect ratio of the page should be +// preserved while scaling. +// |center_in_bounds| specifies whether the final image (after any scaling is +// done) should be centered within the given bounds. +// |autorotate| specifies whether the final image should be rotated to match +// the output bound. +// Returns false if the document or the page number are not valid. +bool RenderPDFPageToDC(const void* pdf_buffer, + int buffer_size, + int page_number, + HDC dc, + int dpi, + int bounds_origin_x, + int bounds_origin_y, + int bounds_width, + int bounds_height, + bool fit_to_bounds, + bool stretch_to_bounds, + bool keep_aspect_ratio, + bool center_in_bounds, + bool autorotate); +#endif +// |page_count| and |max_page_width| are optional and can be NULL. +// Returns false if the document is not valid. +bool GetPDFDocInfo(const void* pdf_buffer, + int buffer_size, int* page_count, + double* max_page_width); + +// Gets the dimensions of a specific page in a document. +// |pdf_buffer| is the buffer that contains the entire PDF document to be +// rendered. +// |pdf_buffer_size| is the size of |pdf_buffer| in bytes. +// |page_number| is the page number that the function will get the dimensions +// of. +// |width| is the output for the width of the page in points. +// |height| is the output for the height of the page in points. +// Returns false if the document or the page number are not valid. +bool GetPDFPageSizeByIndex(const void* pdf_buffer, + int pdf_buffer_size, int page_number, + double* width, double* height); + +// Renders PDF page into 4-byte per pixel BGRA color bitmap. +// |pdf_buffer| is the buffer that contains the entire PDF document to be +// rendered. +// |pdf_buffer_size| is the size of |pdf_buffer| in bytes. +// |page_number| is the 0-based index of the page to be rendered. +// |bitmap_buffer| is the output buffer for bitmap. +// |bitmap_width| is the width of the output bitmap. +// |bitmap_height| is the height of the output bitmap. +// |dpi| is the resolutions. +// |autorotate| specifies whether the final image should be rotated to match +// the output bound. +// Returns false if the document or the page number are not valid. +bool RenderPDFPageToBitmap(const void* pdf_buffer, + int pdf_buffer_size, + int page_number, + void* bitmap_buffer, + int bitmap_width, + int bitmap_height, + int dpi, + bool autorotate); + +} // namespace chrome_pdf + +#endif // PDF_PDF_H_ |