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      1 /*
      2  * Copyright (C) 2012 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef Pagination_h
     27 #define Pagination_h
     28 
     29 namespace WebCore {
     30 
     31 class RenderStyle;
     32 
     33 struct Pagination {
     34     enum Mode { Unpaginated, LeftToRightPaginated, RightToLeftPaginated, TopToBottomPaginated, BottomToTopPaginated };
     35 
     36     Pagination()
     37         : mode(Unpaginated)
     38         , behavesLikeColumns(false)
     39         , pageLength(0)
     40         , gap(0)
     41     {
     42     };
     43 
     44     bool operator==(const Pagination& other) const
     45     {
     46         return mode == other.mode && behavesLikeColumns == other.behavesLikeColumns && pageLength == other.pageLength && gap == other.gap;
     47     }
     48 
     49     bool operator!=(const Pagination& other) const
     50     {
     51         return mode != other.mode || behavesLikeColumns != other.behavesLikeColumns || pageLength != other.pageLength || gap != other.gap;
     52     }
     53 
     54     Mode mode;
     55     bool behavesLikeColumns;
     56     unsigned pageLength;
     57     unsigned gap;
     58 
     59     static void setStylesForPaginationMode(Mode, RenderStyle*);
     60 };
     61 
     62 } // namespace WebCore
     63 
     64 #endif
     65