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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.
107 lines
3.9 KiB
C++
107 lines
3.9 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 <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 TextStyle style_for_token_type(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(Gfx::Palette palette)
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{
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ASSERT(m_editor);
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auto text = m_editor->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.color = style.color;
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span.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_editor->document().set_spans(spans);
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m_has_brace_buddies = false;
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highlight_matching_token_pair();
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m_editor->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<SyntaxHighlighter::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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