| /* |
| * Copyright (C) 2019 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. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(LAYOUT_FORMATTING_CONTEXT) |
| |
| #include "DisplayBox.h" |
| |
| namespace WebCore { |
| namespace Layout { |
| |
| class LineBox { |
| public: |
| struct Baseline { |
| LayoutUnit height() const { return ascent + descent; } |
| |
| LayoutUnit ascent; |
| LayoutUnit descent; |
| }; |
| LineBox(Display::Rect, const Baseline&, LayoutUnit baselineOffset); |
| |
| LayoutPoint logicalTopLeft() const { return m_rect.topLeft(); } |
| |
| LayoutUnit logicalLeft() const { return m_rect.left(); } |
| LayoutUnit logicalRight() const { return m_rect.right(); } |
| LayoutUnit logicalTop() const { return m_rect.top(); } |
| LayoutUnit logicalBottom() const { return m_rect.bottom(); } |
| |
| LayoutUnit logicalWidth() const { return m_rect.width(); } |
| LayoutUnit logicalHeight() const { return m_rect.height(); } |
| |
| Baseline baseline() const { return m_baseline; } |
| // Baseline offset from line logical top. Note that offset does not necessarily equal to ascent. |
| // |
| // ------------------- line logical top |
| // ^ |
| // | |
| // ^ | baseline offset |
| // | | |
| // | ascent | |
| // | | |
| // v v |
| // ----------------- baseline |
| // ^ |
| // | descent |
| // v |
| // ------------------- line logical bottom |
| LayoutUnit baselineOffset() const { return m_baselineOffset; } |
| |
| private: |
| Display::Rect m_rect; |
| Baseline m_baseline; |
| LayoutUnit m_baselineOffset; |
| }; |
| |
| inline LineBox::LineBox(Display::Rect rect, const Baseline& baseline, LayoutUnit baselineOffset) |
| : m_rect(rect) |
| , m_baseline(baseline) |
| , m_baselineOffset(baselineOffset) |
| { |
| } |
| |
| } |
| } |
| |
| #endif |