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https://github.com/LadybirdBrowser/ladybird.git
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a35693915e
Now that fonts know their own weight, we no longer need highlighters to tell us which font to use. Instead, they can just say "this should be bold" and we'll find the right font ourselves.
89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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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 <AK/Noncopyable.h>
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#include <AK/WeakPtr.h>
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#include <LibGUI/TextDocument.h>
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#include <LibGfx/Palette.h>
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namespace GUI {
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enum class SyntaxLanguage {
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PlainText,
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Cpp,
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JavaScript,
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INI,
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Shell,
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};
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struct TextStyle {
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const Color color;
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const bool bold { false };
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};
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class SyntaxHighlighter {
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AK_MAKE_NONCOPYABLE(SyntaxHighlighter);
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AK_MAKE_NONMOVABLE(SyntaxHighlighter);
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public:
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virtual ~SyntaxHighlighter();
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virtual SyntaxLanguage language() const = 0;
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virtual void rehighlight(Gfx::Palette) = 0;
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virtual void highlight_matching_token_pair();
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virtual bool is_identifier(void*) const { return false; };
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virtual bool is_navigatable(void*) const { return false; };
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void attach(TextEditor& editor);
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void detach();
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void cursor_did_change();
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protected:
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SyntaxHighlighter() { }
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WeakPtr<TextEditor> m_editor;
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struct MatchingTokenPair {
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void* open;
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void* close;
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};
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virtual Vector<MatchingTokenPair> matching_token_pairs() const = 0;
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virtual bool token_types_equal(void*, void*) const = 0;
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struct BuddySpan {
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int index { -1 };
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GUI::TextDocumentSpan span_backup;
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};
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bool m_has_brace_buddies { false };
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BuddySpan m_brace_buddies[2];
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};
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}
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