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LibGUI: Add a GitCommit SyntaxHighlighter implementation

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This highlighter just syntax highlights the commented lines in your git
commit message. It could potentially be enhanced to handle the rebase
UI or other more advanced cases in the future.
This commit is contained in:
Brian Gianforcaro 2022-01-17 19:36:09 -08:00 • committed by Andreas Kling
parent d32736582e
commit 8e8d24fe29
5 changed files with 231 additions and 0 deletions
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59
Userland/Libraries/LibGUI/GitCommitSyntaxHighlighter.cpp Normal file
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/*
* Copyright (c) 2022, Brian Gianforcaro <bgianf@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGUI/GitCommitLexer.h>
#include <LibGUI/GitCommitSyntaxHighlighter.h>
#include <LibGfx/Palette.h>
namespace GUI {
static Syntax::TextStyle style_for_token_type(const Gfx::Palette& palette, GitCommitToken::Type type)
{
switch (type) {
case GitCommitToken::Type::Comment:
return { palette.syntax_comment() };
default:
return { palette.base_text() };
}
}
void GitCommitSyntaxHighlighter::rehighlight(Palette const& palette)
{
auto text = m_client->get_text();
GitCommitLexer lexer(text);
auto tokens = lexer.lex();
Vector<GUI::TextDocumentSpan> spans;
for (auto& token : tokens) {
GUI::TextDocumentSpan span;
span.range.set_start({ token.m_start.line, token.m_start.column });
span.range.set_end({ token.m_end.line, token.m_end.column });
auto style = style_for_token_type(palette, token.m_type);
span.attributes.color = style.color;
span.attributes.bold = style.bold;
span.is_skippable = false;
span.data = static_cast<u64>(token.m_type);
spans.append(span);
}
m_client->do_set_spans(move(spans));
m_client->do_update();
}
Vector<GitCommitSyntaxHighlighter::MatchingTokenPair> GitCommitSyntaxHighlighter::matching_token_pairs_impl() const
{
static Vector<MatchingTokenPair> empty;
return empty;
}
bool GitCommitSyntaxHighlighter::token_types_equal(u64 token1, u64 token2) const
{
return static_cast<GUI::GitCommitToken::Type>(token1) == static_cast<GUI::GitCommitToken::Type>(token2);
}
GitCommitSyntaxHighlighter::~GitCommitSyntaxHighlighter()
{
}
}