1/*
2 * Copyright (C) 2012 Adobe Systems Incorporated. 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 *
8 * 1. Redistributions of source code must retain the above
9 *    copyright notice, this list of conditions and the following
10 *    disclaimer.
11 * 2. Redistributions in binary form must reproduce the above
12 *    copyright notice, this list of conditions and the following
13 *    disclaimer in the documentation and/or other materials
14 *    provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef ShapeOutsideInfo_h
31#define ShapeOutsideInfo_h
32
33#include "core/platform/graphics/LayoutSize.h"
34#include "core/rendering/shapes/ShapeInfo.h"
35
36namespace WebCore {
37
38class RenderBox;
39
40class ShapeOutsideInfo : public ShapeInfo<RenderBox, &RenderStyle::shapeOutside, &Shape::getExcludedIntervals>, public MappedInfo<RenderBox, ShapeOutsideInfo> {
41public:
42    LayoutUnit leftSegmentMarginBoxDelta() const { return m_leftSegmentMarginBoxDelta; }
43    LayoutUnit rightSegmentMarginBoxDelta() const { return m_rightSegmentMarginBoxDelta; }
44
45    bool computeSegmentsForContainingBlockLine(LayoutUnit lineTop, LayoutUnit floatTop, LayoutUnit lineHeight);
46    virtual bool computeSegmentsForLine(LayoutUnit lineTop, LayoutUnit lineHeight) OVERRIDE;
47
48    static PassOwnPtr<ShapeOutsideInfo> createInfo(const RenderBox* renderer) { return adoptPtr(new ShapeOutsideInfo(renderer)); }
49    static bool isEnabledFor(const RenderBox*);
50
51protected:
52    virtual LayoutRect computedShapeLogicalBoundingBox() const OVERRIDE { return computedShape()->shapeMarginLogicalBoundingBox(); }
53
54private:
55    ShapeOutsideInfo(const RenderBox* renderer) : ShapeInfo<RenderBox, &RenderStyle::shapeOutside, &Shape::getExcludedIntervals>(renderer) { }
56
57    LayoutUnit m_leftSegmentMarginBoxDelta;
58    LayoutUnit m_rightSegmentMarginBoxDelta;
59    LayoutUnit m_lineTop;
60};
61
62}
63#endif
64