ladybird/Libraries/LibHTML/Layout/LineBoxFragment.h

/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 * 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT HOLDER OR 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.
 */

#pragma once

#include <LibGfx/FloatRect.h>

class LayoutNode;
class RenderingContext;

class LineBoxFragment {
    friend class LineBox;
public:
    LineBoxFragment(const LayoutNode& layout_node, int start, int length, const Gfx::FloatRect& rect)
        : m_layout_node(layout_node)
        , m_start(start)
        , m_length(length)
        , m_rect(rect)
    {
    }

    const LayoutNode& layout_node() const { return m_layout_node; }
    int start() const { return m_start; }
    int length() const { return m_length; }
    const Gfx::FloatRect& rect() const { return m_rect; }
    Gfx::FloatRect& rect() { return m_rect; }

    float width() const { return m_rect.width(); }

    void render(RenderingContext&);

    bool is_justifiable_whitespace() const;
    StringView text() const;

    int text_index_at(float x) const;

private:
    const LayoutNode& m_layout_node;
    int m_start { 0 };
    int m_length { 0 };
    Gfx::FloatRect m_rect;
};