Move printing related stuff to the root printing project from the browser pro...

chrome/browser/printing/page_number.cc

-// Copyright (c) 2006-2008 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 "chrome/browser/printing/page_number.h"
-
-#include <limits>
-
-#include "base/logging.h"
-#include "chrome/browser/printing/print_settings.h"
-
-namespace printing {
-
-PageNumber::PageNumber(const PrintSettings& settings, int document_page_count) {
-  Init(settings, document_page_count);
-}
-
-PageNumber::PageNumber()
-    : ranges_(NULL),
-      page_number_(-1),
-      page_range_index_(-1),
-      document_page_count_(0) {
-}
-
-void PageNumber::operator=(const PageNumber& other) {
-  ranges_ = other.ranges_;
-  page_number_ = other.page_number_;
-  page_range_index_ = other.page_range_index_;
-  document_page_count_ = other.document_page_count_;
-}
-
-void PageNumber::Init(const PrintSettings& settings, int document_page_count) {
-  DCHECK(document_page_count);
-  ranges_ = settings.ranges.empty() ? NULL : &settings.ranges;
-  document_page_count_ = document_page_count;
-  if (ranges_) {
-    page_range_index_ = 0;
-    page_number_ = (*ranges_)[0].from;
-  } else {
-    if (document_page_count) {
-      page_number_ = 0;
-    } else {
-      page_number_ = -1;
-    }
-    page_range_index_ = -1;
-  }
-}
-
-int PageNumber::operator++() {
-  if (!ranges_) {
-    // Switch to next page.
-    if (++page_number_ == document_page_count_) {
-      // Finished.
-      *this = npos();
-    }
-  } else {
-    // Switch to next page.
-    ++page_number_;
-    // Page ranges are inclusive.
-    if (page_number_ > (*ranges_)[page_range_index_].to) {
-      DCHECK(ranges_->size() <= static_cast<size_t>(
-          std::numeric_limits<int>::max()));
-      if (++page_range_index_ == static_cast<int>(ranges_->size())) {
-        // Finished.
-        *this = npos();
-      } else {
-        page_number_ = (*ranges_)[page_range_index_].from;
-      }
-    }
-  }
-  return ToInt();
-}
-
-bool PageNumber::operator==(const PageNumber& other) const {
-  return page_number_ == other.page_number_ &&
-         page_range_index_ == other.page_range_index_;
-}
-bool PageNumber::operator!=(const PageNumber& other) const {
-  return page_number_ != other.page_number_ ||
-         page_range_index_ != other.page_range_index_;
-}
-
-}  // namespace printing