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 HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
19 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
20 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
21 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
27 * OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#ifndef RectangleShape_h
31#define RectangleShape_h
32
33#include "FloatPoint.h"
34#include "FloatRect.h"
35#include "FloatSize.h"
36#include "Shape.h"
37#include <wtf/Assertions.h>
38#include <wtf/Vector.h>
39
40namespace WebCore {
41
42class FloatRoundedRect : public FloatRect {
43public:
44    FloatRoundedRect() { }
45    FloatRoundedRect(const FloatRect& bounds, const FloatSize& radii)
46        : FloatRect(bounds)
47        , m_radii(radii)
48    {
49    }
50
51    float rx() const { return m_radii.width(); }
52    float ry() const { return m_radii.height(); }
53    FloatRoundedRect marginBounds(float margin) const;
54    FloatRoundedRect paddingBounds(float padding) const;
55    FloatPoint cornerInterceptForWidth(float width) const;
56
57private:
58    FloatSize m_radii;
59};
60
61class RectangleShape : public Shape {
62public:
63    RectangleShape(const FloatRect& bounds, const FloatSize& radii)
64        : Shape()
65        , m_bounds(bounds, radii)
66        , m_haveInitializedMarginBounds(false)
67        , m_haveInitializedPaddingBounds(false)
68    {
69    }
70
71    virtual LayoutRect shapeMarginLogicalBoundingBox() const OVERRIDE { return static_cast<LayoutRect>(shapeMarginBounds()); }
72    virtual LayoutRect shapePaddingLogicalBoundingBox() const OVERRIDE { return static_cast<LayoutRect>(shapePaddingBounds()); }
73    virtual bool isEmpty() const OVERRIDE { return m_bounds.isEmpty(); }
74    virtual void getExcludedIntervals(LayoutUnit logicalTop, LayoutUnit logicalHeight, SegmentList&) const OVERRIDE;
75    virtual void getIncludedIntervals(LayoutUnit logicalTop, LayoutUnit logicalHeight, SegmentList&) const OVERRIDE;
76    virtual bool firstIncludedIntervalLogicalTop(LayoutUnit minLogicalIntervalTop, const LayoutSize& minLogicalIntervalSize, LayoutUnit&) const OVERRIDE;
77
78private:
79    FloatRoundedRect shapeMarginBounds() const;
80    FloatRoundedRect shapePaddingBounds() const;
81
82    FloatRoundedRect m_bounds;
83    mutable FloatRoundedRect m_marginBounds;
84    mutable FloatRoundedRect m_paddingBounds;
85    mutable bool m_haveInitializedMarginBounds : 1;
86    mutable bool m_haveInitializedPaddingBounds : 1;
87};
88
89} // namespace WebCore
90
91#endif // RectangleShape_h
92