mirror of
https://github.com/RGBCube/serenity
synced 2025-05-31 09:58:11 +00:00
29a4da30b7
The StyleResolver can find the specified CSS values for the parent element via the DOM. Forcing everyone to locate specified values for their parent was completely unnecessary.
124 lines
3.9 KiB
C++
124 lines
3.9 KiB
C++
/*
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* Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
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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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#pragma once
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#include <LibGfx/Bitmap.h>
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#include <LibWeb/HTML/HTMLElement.h>
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#include <LibWeb/SVG/SVGGeometryElement.h>
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namespace Web::SVG {
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enum class PathInstructionType {
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Move,
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ClosePath,
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Line,
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HorizontalLine,
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VerticalLine,
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Curve,
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SmoothCurve,
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QuadraticBezierCurve,
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SmoothQuadraticBezierCurve,
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EllipticalArc,
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Invalid,
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};
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struct PathInstruction {
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PathInstructionType type;
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bool absolute;
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Vector<float> data;
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};
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class PathDataParser final {
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public:
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PathDataParser(const String& source);
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~PathDataParser() = default;
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Vector<PathInstruction> parse();
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private:
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void parse_drawto();
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void parse_moveto();
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void parse_closepath();
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void parse_lineto();
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void parse_horizontal_lineto();
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void parse_vertical_lineto();
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void parse_curveto();
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void parse_smooth_curveto();
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void parse_quadratic_bezier_curveto();
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void parse_smooth_quadratic_bezier_curveto();
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void parse_elliptical_arc();
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float parse_coordinate();
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Vector<float> parse_coordinate_pair();
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Vector<float> parse_coordinate_sequence();
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Vector<Vector<float>> parse_coordinate_pair_sequence();
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Vector<float> parse_coordinate_pair_double();
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Vector<float> parse_coordinate_pair_triplet();
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Vector<float> parse_elliptical_arg_argument();
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void parse_whitespace(bool must_match_once = false);
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void parse_comma_whitespace();
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float parse_fractional_constant();
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float parse_number();
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float parse_flag();
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// -1 if negative, +1 otherwise
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int parse_sign();
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bool match_whitespace() const;
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bool match_comma_whitespace() const;
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bool match_coordinate() const;
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bool match(char c) const { return !done() && ch() == c; }
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bool done() const { return m_cursor >= m_source.length(); }
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char ch() const { return m_source[m_cursor]; }
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char consume() { return m_source[m_cursor++]; }
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String m_source;
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size_t m_cursor { 0 };
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Vector<PathInstruction> m_instructions;
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};
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class SVGPathElement final : public SVGGeometryElement {
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public:
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using WrapperType = Bindings::SVGPathElementWrapper;
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SVGPathElement(DOM::Document&, const QualifiedName& qualified_name);
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virtual ~SVGPathElement() override = default;
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virtual RefPtr<Layout::Node> create_layout_node() override;
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virtual void parse_attribute(const FlyString& name, const String& value) override;
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Gfx::Path& get_path();
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private:
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Vector<PathInstruction> m_instructions;
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Gfx::FloatPoint m_previous_control_point = {};
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Optional<Gfx::Path> m_path;
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};
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}
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