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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibGUI/GMLLexer.h>
#include <LibGUI/GMLSyntaxHighlighter.h>
#include <LibGUI/TextEditor.h>
#include <LibGfx/Font.h>
#include <LibGfx/Palette.h>
namespace GUI {
static TextStyle style_for_token_type(Gfx::Palette palette, GMLToken::Type type)
{
switch (type) {
case GMLToken::Type::LeftCurly:
case GMLToken::Type::RightCurly:
return { palette.syntax_punctuation() };
case GMLToken::Type::ClassMarker:
return { palette.syntax_keyword() };
case GMLToken::Type::ClassName:
return { palette.syntax_identifier(), true };
case GMLToken::Type::Identifier:
return { palette.syntax_identifier() };
case GMLToken::Type::JsonValue:
return { palette.syntax_string() };
case GMLToken::Type::Comment:
return { palette.syntax_comment() };
default:
return { palette.base_text() };
}
}
bool GMLSyntaxHighlighter::is_identifier(void* token) const
{
auto ini_token = static_cast<GUI::GMLToken::Type>(reinterpret_cast<size_t>(token));
return ini_token == GUI::GMLToken::Type::Identifier;
}
void GMLSyntaxHighlighter::rehighlight(Gfx::Palette palette)
{
ASSERT(m_editor);
auto text = m_editor->text();
GMLLexer 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 = reinterpret_cast<void*>(token.m_type);
spans.append(span);
}
m_editor->document().set_spans(spans);
m_has_brace_buddies = false;
highlight_matching_token_pair();
m_editor->update();
}
Vector<GMLSyntaxHighlighter::MatchingTokenPair> GMLSyntaxHighlighter::matching_token_pairs() const
{
static Vector<SyntaxHighlighter::MatchingTokenPair> pairs;
if (pairs.is_empty()) {
pairs.append({ reinterpret_cast<void*>(GMLToken::Type::LeftCurly), reinterpret_cast<void*>(GMLToken::Type::RightCurly) });
}
return pairs;
}
bool GMLSyntaxHighlighter::token_types_equal(void* token1, void* token2) const
{
return static_cast<GUI::GMLToken::Type>(reinterpret_cast<size_t>(token1)) == static_cast<GUI::GMLToken::Type>(reinterpret_cast<size_t>(token2));
}
GMLSyntaxHighlighter::~GMLSyntaxHighlighter()
{
}
}
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