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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef CHROME_BROWSER_PRINTING_PAGE_NUMBER_H__
#define CHROME_BROWSER_PRINTING_PAGE_NUMBER_H__
#ifdef _DEBUG
#include <ostream>
#endif
#include "chrome/browser/printing/page_range.h"
namespace printing {
class PrintSettings;
// Represents a page series following the array of page ranges defined in a
// PrintSettings.
class PageNumber {
public:
// Initializes the page to the first page in the settings's range or 0.
PageNumber(const PrintSettings& settings, int document_page_count);
PageNumber();
void operator=(const PageNumber& other);
// Initializes the page to the first page in the setting's range or 0. It
// initialize to npos if the range is empty and document_page_count is 0.
void Init(const PrintSettings& settings, int document_page_count);
// Converts to a page numbers.
int ToInt() const {
return page_number_;
}
// Calculates the next page in the serie.
int operator++();
// Returns an instance that represents the end of a serie.
static const PageNumber npos() {
return PageNumber();
}
// Equality operator. Only the current page number is verified so that
// "page != PageNumber::npos()" works.
bool operator==(const PageNumber& other) const;
bool operator!=(const PageNumber& other) const;
private:
// The page range to follow.
const PageRanges* ranges_;
// The next page to be printed. -1 when not printing.
int page_number_;
// The next page to be printed. -1 when not used. Valid only if
// document()->settings().range.empty() is false.
int page_range_index_;
// Number of expected pages in the document. Used when ranges_ is NULL.
int document_page_count_;
};
// Debug output support.
template<class E, class T>
inline std::basic_ostream<E,T>& operator<<(std::basic_ostream<E,T>& ss,
const PageNumber& page) {
return ss << page.ToInt();
}
} // namespace printing
#endif // CHROME_BROWSER_PRINTING_PAGE_NUMBER_H__
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