DisplayBox.cpp   [plain text]

/*
 * Copyright (C) 2018 Apple 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:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
 */

#include "config.h"
#include "DisplayBox.h"

#if ENABLE(LAYOUT_FORMATTING_CONTEXT)

#include "RenderStyle.h"
#include <wtf/IsoMallocInlines.h>

namespace WebCore {
namespace Display {

WTF_MAKE_ISO_ALLOCATED_IMPL(Box);

Box::Box(const RenderStyle& style)
    : m_style(style)
{
}

Box::~Box()
{
}

Box::Style::Style(const RenderStyle& style)
    : boxSizing(style.boxSizing())
{
}

Box::Rect Box::marginBox() const
{
    auto borderBox = this->borderBox();

    Rect marginBox;
    marginBox.setTop(borderBox.top() - marginTop());
    marginBox.setLeft(borderBox.left() - marginLeft());
    marginBox.setHeight(borderBox.height() + marginTop() + marginBottom());
    marginBox.setWidth(borderBox.width() + marginLeft() + marginRight());
    return marginBox;
}

Box::Rect Box::nonCollapsedMarginBox() const
{
    auto borderBox = this->borderBox();

    Rect marginBox;
    marginBox.setTop(borderBox.top() - nonCollapsedMarginTop());
    marginBox.setLeft(borderBox.left() - marginLeft());
    marginBox.setHeight(borderBox.height() + nonCollapsedMarginTop() + nonCollapsedMarginBottom());
    marginBox.setWidth(borderBox.width() + marginLeft() + marginRight());
    return marginBox;
}

Box::Rect Box::borderBox() const
{
    Rect borderBox;
    borderBox.setTopLeft({ });
    borderBox.setSize({ width(), height() });
    return borderBox;
}

Box::Rect Box::paddingBox() const
{
    auto borderBox = this->borderBox();

    Rect paddingBox;
    paddingBox.setTop(borderBox.top() + borderTop());
    paddingBox.setLeft(borderBox.left() + borderLeft());
    paddingBox.setHeight(borderBox.bottom() - borderTop() - borderBottom());
    paddingBox.setWidth(borderBox.width() - borderLeft() - borderRight());
    return paddingBox;
}

Box::Rect Box::contentBox() const
{
    Rect contentBox;
    contentBox.setTop(contentBoxTop());
    contentBox.setLeft(contentBoxLeft());
    contentBox.setWidth(contentBoxWidth());
    contentBox.setHeight(contentBoxHeight());
    return contentBox;
}

}
}

#endif