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107 lines
3.9 KiB
C++
107 lines
3.9 KiB
C++
/*
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* Copyright (c) 2020-2021, 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 <LibGUI/GMLLexer.h>
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#include <LibGUI/GMLSyntaxHighlighter.h>
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#include <LibGUI/TextEditor.h>
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#include <LibGfx/Font.h>
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#include <LibGfx/Palette.h>
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namespace GUI {
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static Syntax::TextStyle style_for_token_type(const Gfx::Palette& palette, GMLToken::Type type)
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{
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switch (type) {
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case GMLToken::Type::LeftCurly:
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case GMLToken::Type::RightCurly:
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return { palette.syntax_punctuation() };
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case GMLToken::Type::ClassMarker:
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return { palette.syntax_keyword() };
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case GMLToken::Type::ClassName:
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return { palette.syntax_identifier(), true };
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case GMLToken::Type::Identifier:
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return { palette.syntax_identifier() };
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case GMLToken::Type::JsonValue:
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return { palette.syntax_string() };
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case GMLToken::Type::Comment:
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return { palette.syntax_comment() };
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default:
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return { palette.base_text() };
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}
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}
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bool GMLSyntaxHighlighter::is_identifier(void* token) const
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{
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auto ini_token = static_cast<GUI::GMLToken::Type>(reinterpret_cast<size_t>(token));
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return ini_token == GUI::GMLToken::Type::Identifier;
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}
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void GMLSyntaxHighlighter::rehighlight(const Palette& palette)
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{
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auto text = m_client->get_text();
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GMLLexer lexer(text);
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auto tokens = lexer.lex();
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Vector<GUI::TextDocumentSpan> spans;
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for (auto& token : tokens) {
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GUI::TextDocumentSpan span;
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span.range.set_start({ token.m_start.line, token.m_start.column });
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span.range.set_end({ token.m_end.line, token.m_end.column });
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auto style = style_for_token_type(palette, token.m_type);
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span.attributes.color = style.color;
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span.attributes.bold = style.bold;
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span.is_skippable = false;
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span.data = reinterpret_cast<void*>(token.m_type);
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spans.append(span);
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}
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m_client->do_set_spans(move(spans));
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m_has_brace_buddies = false;
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highlight_matching_token_pair();
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m_client->do_update();
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}
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Vector<GMLSyntaxHighlighter::MatchingTokenPair> GMLSyntaxHighlighter::matching_token_pairs() const
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{
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static Vector<MatchingTokenPair> pairs;
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if (pairs.is_empty()) {
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pairs.append({ reinterpret_cast<void*>(GMLToken::Type::LeftCurly), reinterpret_cast<void*>(GMLToken::Type::RightCurly) });
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}
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return pairs;
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}
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bool GMLSyntaxHighlighter::token_types_equal(void* token1, void* token2) const
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{
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return static_cast<GUI::GMLToken::Type>(reinterpret_cast<size_t>(token1)) == static_cast<GUI::GMLToken::Type>(reinterpret_cast<size_t>(token2));
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}
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GMLSyntaxHighlighter::~GMLSyntaxHighlighter()
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{
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}
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}
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