chromium/pdf/pdf_transform.cc

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "pdf/pdf_transform.h"

#include <algorithm>
#include <utility>

#include "base/notreached.h"
#include "ui/gfx/geometry/point_f.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size_f.h"

namespace chrome_pdf {

namespace {

// When a PdfRectangle has top < bottom, or right < left, the values should be
// swapped.
void SwapPdfRectangleValuesIfNeeded(PdfRectangle* rect) { … }

}  // namespace

float CalculateScaleFactor(const gfx::Rect& content_rect,
                           const gfx::SizeF& src_size,
                           bool rotated) { … }

void SetDefaultClipBox(bool rotated, PdfRectangle* clip_box) { … }

void CalculateMediaBoxAndCropBox(bool rotated,
                                 bool has_media_box,
                                 bool has_crop_box,
                                 PdfRectangle* media_box,
                                 PdfRectangle* crop_box) { … }

PdfRectangle CalculateClipBoxBoundary(const PdfRectangle& media_box,
                                      const PdfRectangle& crop_box) { … }

void ScalePdfRectangle(float scale_factor, PdfRectangle* rect) { … }

gfx::PointF CalculateScaledClipBoxOffset(const gfx::Rect& content_rect,
                                         const PdfRectangle& source_clip_box) { … }

gfx::PointF CalculateNonScaledClipBoxOffset(
    int rotation,
    int page_width,
    int page_height,
    const PdfRectangle& source_clip_box) { … }

}  // namespace chrome_pdf