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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#pragma once
28
29#include <LibGfx/FloatRect.h>
30
31class LayoutNode;
32class RenderingContext;
33
34class LineBoxFragment {
35 friend class LineBox;
36public:
37 LineBoxFragment(const LayoutNode& layout_node, int start, int length, const Gfx::FloatRect& rect)
38 : m_layout_node(layout_node)
39 , m_start(start)
40 , m_length(length)
41 , m_rect(rect)
42 {
43 }
44
45 const LayoutNode& layout_node() const { return m_layout_node; }
46 int start() const { return m_start; }
47 int length() const { return m_length; }
48 const Gfx::FloatRect& rect() const { return m_rect; }
49 Gfx::FloatRect& rect() { return m_rect; }
50
51 float width() const { return m_rect.width(); }
52
53 void render(RenderingContext&);
54
55 bool is_justifiable_whitespace() const;
56 StringView text() const;
57
58 int text_index_at(float x) const;
59
60private:
61 const LayoutNode& m_layout_node;
62 int m_start { 0 };
63 int m_length { 0 };
64 Gfx::FloatRect m_rect;
65};