mirror of
https://github.com/RGBCube/serenity
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5aeab9878e
Bring the names of various boxes closer to spec language. This should hopefully make things easier to understand and hack on. :^) Some notable changes: - LayoutNode -> Layout::Node - LayoutBox -> Layout::Box - LayoutBlock -> Layout::BlockBox - LayoutReplaced -> Layout::ReplacedBox - LayoutDocument -> Layout::InitialContainingBlockBox - LayoutText -> Layout::TextNode - LayoutInline -> Layout::InlineNode Note that this is not strictly a "box tree" as we also hang inline/text nodes in the same tree, and they don't generate boxes. (Instead, they contribute line box fragments to their containing block!)
103 lines
3.3 KiB
C++
103 lines
3.3 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibWeb/CSS/Length.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/HTMLHtmlElement.h>
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#include <LibWeb/Page/Frame.h>
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namespace Web::CSS {
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float Length::relative_length_to_px(const Layout::Node& layout_node) const
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{
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switch (m_type) {
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case Type::Ex:
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return m_value * layout_node.specified_style().font().x_height();
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case Type::Em:
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return m_value * layout_node.font_size();
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case Type::Rem:
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return m_value * layout_node.document().document_element()->layout_node()->font_size();
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case Type::Vw:
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return layout_node.document().frame()->viewport_rect().width() * (m_value / 100);
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case Type::Vh:
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return layout_node.document().frame()->viewport_rect().height() * (m_value / 100);
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case Type::Vmin: {
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auto viewport = layout_node.document().frame()->viewport_rect();
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return min(viewport.width(), viewport.height()) * (m_value / 100);
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}
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case Type::Vmax: {
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auto viewport = layout_node.document().frame()->viewport_rect();
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return max(viewport.width(), viewport.height()) * (m_value / 100);
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}
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default:
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ASSERT_NOT_REACHED();
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}
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}
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const char* Length::unit_name() const
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{
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switch (m_type) {
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case Type::Cm:
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return "cm";
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case Type::In:
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return "in";
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case Type::Px:
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return "px";
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case Type::Pt:
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return "pt";
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case Type::Mm:
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return "mm";
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case Type::Q:
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return "Q";
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case Type::Pc:
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return "pc";
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case Type::Ex:
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return "ex";
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case Type::Em:
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return "em";
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case Type::Rem:
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return "rem";
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case Type::Auto:
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return "auto";
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case Type::Percentage:
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return "%";
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case Type::Undefined:
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return "undefined";
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case Type::Vh:
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return "vh";
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case Type::Vw:
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return "vw";
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case Type::Vmax:
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return "vmax";
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case Type::Vmin:
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return "vmin";
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}
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ASSERT_NOT_REACHED();
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}
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}
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