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LibWeb: Begin SVG element support

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This commit starts adding a basic SVG element. Currently, svg elements
have support for the width and height properties, as well as the stroke,
stroke-width, and fill properties. The only child element supported
is the path element, as most other graphical elements are just shorthand
for paths.
This commit is contained in:
Matthew Olsson 2020-07-19 23:01:53 -07:00 • committed by Andreas Kling
parent bbcdab2baa
commit 22f0953fe2
11 changed files with 1013 additions and 2 deletions
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66
Libraries/LibWeb/DOM/HTMLSvgElement.h Normal file
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/*
* Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
* 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/Bitmap.h>
#include <LibWeb/DOM/HTMLElement.h>
#include <LibWeb/DOM/SvgContext.h>
namespace Web {
class HTMLSvgElement final : public HTMLElement {
public:
HTMLSvgElement(Document&, const FlyString& tag_name);
virtual ~HTMLSvgElement() override = default;
virtual void parse_attribute(const FlyString& name, const String& value) override;
virtual RefPtr<LayoutNode> create_layout_node(const StyleProperties* parent_style) override;
const RefPtr<Gfx::Bitmap> bitmap() const { return m_bitmap; }
bool create_bitmap();
SvgPaintingContext make_context() const;
unsigned width() const;
unsigned height() const;
private:
void paint(Gfx::Painter&);
RefPtr<Gfx::Bitmap> m_bitmap;
Optional<float> m_stroke_width;
Optional<Color> m_stroke_color;
Optional<Color> m_fill_color;
};
template<>
inline bool is<HTMLSvgElement>(const Node& node)
{
return is<Element>(node) && to<Element>(node).tag_name() == HTML::TagNames::svg;
}
}