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#include "config.h"
31#include "ShapeInsideInfo.h"
32
33#if ENABLE(CSS_SHAPES)
34
35#include "InlineIterator.h"
36#include "RenderBlock.h"
37
38namespace WebCore {
39
40LineSegmentRange::LineSegmentRange(const InlineIterator& start, const InlineIterator& end)
41    : start(start.root(), start.object(), start.offset())
42    , end(end.root(), end.object(), end.offset())
43    {
44    }
45
46bool ShapeInsideInfo::isEnabledFor(const RenderBlock* renderer)
47{
48    ShapeValue* shapeValue = renderer->style()->resolvedShapeInside();
49    if (!shapeValue || shapeValue->type() != ShapeValue::Shape)
50        return false;
51
52    BasicShape* shape = shapeValue->shape();
53    return shape && shape->type() != BasicShape::BasicShapeInsetRectangleType;
54}
55
56bool ShapeInsideInfo::adjustLogicalLineTop(float minSegmentWidth)
57{
58    const Shape* shape = computedShape();
59    if (!shape || m_lineHeight <= 0 || logicalLineTop() > shapeLogicalBottom())
60        return false;
61
62    LayoutUnit newLineTop;
63    if (shape->firstIncludedIntervalLogicalTop(m_shapeLineTop, LayoutSize(minSegmentWidth, m_lineHeight), newLineTop)) {
64        if (newLineTop > m_shapeLineTop) {
65            m_shapeLineTop = newLineTop;
66            return true;
67        }
68    }
69
70    return false;
71}
72
73}
74#endif
75