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/*
This file is part of cpp-ethereum.
cpp-ethereum is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
cpp-ethereum is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file CodeHighlighter.h
* @author Arkadiy Paronyan arkadiy@ethdev.com
* @date 2015
* Ethereum IDE client.
*/
#pragma once
#include <vector>
#include <QString>
#include <QTextCharFormat>
class QTextDocument;
namespace dev
{
struct Exception;
namespace solidity
{
class ASTNode;
struct Location;
}
namespace mix
{
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/// Code highligting settings
class CodeHighlighterSettings
{
public:
enum Token
{
Import,
Keyword,
Comment,
StringLiteral,
NumLiteral,
CompilationError,
Size, //this must be kept last
};
CodeHighlighterSettings();
///Format for each token
QTextCharFormat formats[Size];
///Background color
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QColor backgroundColor;
///Foreground color
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QColor foregroundColor;
};
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/// Code highlighting engine class
class CodeHighlighter
{
public:
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/// Formatting range
struct FormatRange
{
FormatRange(CodeHighlighterSettings::Token _t, int _start, int _length): token(_t), start(_start), length(_length) {}
FormatRange(CodeHighlighterSettings::Token _t, solidity::Location const& _location);
bool operator<(FormatRange const& _other) const { return start < _other.start || (start == _other.start && length < _other.length); }
CodeHighlighterSettings::Token token;
int start;
int length;
};
typedef std::vector<FormatRange> Formats; // Sorted by start position
public:
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/// Collect highligting information by lexing the source
void processSource(std::string const& _source);
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/// Collect additional highligting information from AST
void processAST(solidity::ASTNode const& _ast);
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/// Collect highlighting information from compilation exception
void processError(dev::Exception const& _exception);
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/// Apply formatting for a text document
/// @todo Remove this once editor is reworked
void updateFormatting(QTextDocument* _document, CodeHighlighterSettings const& _settings);
private:
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/// Collect highligting information by paring for comments
/// @todo Support this in solidity?
void processComments(std::string const& _source);
private:
Formats m_formats;
};
}
}