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// Copyright 2018 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_PDFIUM_PDFIUM_PRINT_H_
#define PDF_PDFIUM_PDFIUM_PRINT_H_
#include <vector>
#include "base/macros.h"
#include "third_party/pdfium/public/cpp/fpdf_scopers.h"
#include "third_party/pdfium/public/fpdfview.h"
struct PP_PdfPrintSettings_Dev;
struct PP_PrintSettings_Dev;
struct PP_PrintPageNumberRange_Dev;
namespace gfx {
class Rect;
class Size;
} // namespace gfx
namespace chrome_pdf {
class PDFiumEngine;
class PDFiumPrint {
public:
explicit PDFiumPrint(PDFiumEngine* engine);
~PDFiumPrint();
static std::vector<uint32_t> GetPageNumbersFromPrintPageNumberRange(
const PP_PrintPageNumberRange_Dev* page_ranges,
uint32_t page_range_count);
// Performs N-up PDF generation for |doc| based on |pages_per_sheet|,
// |page_size|, and |printable_area|.
// On success, returns the N-up version of |doc| as a vector.
// On failure, returns an empty vector.
static std::vector<uint8_t> CreateNupPdf(ScopedFPDFDocument doc,
size_t pages_per_sheet,
const gfx::Size& page_size,
const gfx::Rect& printable_area);
// Check the source doc orientation. Returns true if the doc is landscape.
// For now the orientation of the doc is determined by its first page's
// orientation. Improvement can be added in the future to better determine
// the orientation of the source docs that have mixed orientation.
// TODO(xlou): rotate pages if the source doc has mixed orientation. So that
// the orientation of all pages of the doc are uniform. Pages of square size
// will not be rotated.
static bool IsSourcePdfLandscape(FPDF_DOCUMENT doc);
static void FitContentsToPrintableArea(FPDF_DOCUMENT doc,
const gfx::Size& page_size,
const gfx::Rect& printable_area);
std::vector<uint8_t> PrintPagesAsPdf(
const PP_PrintPageNumberRange_Dev* page_ranges,
uint32_t page_range_count,
const PP_PrintSettings_Dev& print_settings,
const PP_PdfPrintSettings_Dev& pdf_print_settings,
bool raster);
private:
ScopedFPDFDocument CreatePrintPdf(
const PP_PrintPageNumberRange_Dev* page_ranges,
uint32_t page_range_count,
const PP_PrintSettings_Dev& print_settings,
const PP_PdfPrintSettings_Dev& pdf_print_settings);
ScopedFPDFDocument CreateRasterPdf(
ScopedFPDFDocument doc,
const PP_PrintSettings_Dev& print_settings);
ScopedFPDFDocument CreateSinglePageRasterPdf(
FPDF_PAGE page_to_print,
const PP_PrintSettings_Dev& print_settings);
bool FlattenPrintData(FPDF_DOCUMENT doc) const;
PDFiumEngine* const engine_;
DISALLOW_COPY_AND_ASSIGN(PDFiumPrint);
};
} // namespace chrome_pdf
#endif // PDF_PDFIUM_PDFIUM_PRINT_H_
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