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/*
SuperCollider Qt IDE
Copyright (c) 2012 Jakob Leben & Tim Blechmann
http://www.audiosynth.com
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <QObject>
#include <QTextDocument>
#include <QStack>
#include <QKeyEvent>
#include <QStringList>
#include <QPointer>
#include "tokens.hpp"
#include "completion_menu.hpp"
#include "SCDoc/SCDoc.h"
namespace ScIDE {
class ScCodeEditor;
class TokenIterator;
class MethodCallWidget;
namespace ScLanguage {
struct Method;
struct Class;
}
class AutoCompleter : public QObject {
Q_OBJECT
public:
AutoCompleter(ScCodeEditor*);
void keyPress(QKeyEvent*);
void documentChanged(QTextDocument*);
// NOTE: default 'force' to true in the following methods
// for the purpose of argument-less QAction::triggered() signal:
void triggerCompletion(bool forceShow = true);
void triggerMethodCallAid(bool explicitly = true);
private slots:
void onContentsChange(int pos, int removed, int added);
void onCursorChanged();
void onCompletionMenuFinished(int result);
void updateCompletionMenuInfo();
void clearMethodCallStack();
void hideWidgets();
void gotoHelp(QString symbol);
private:
friend class MethodCallWidget;
struct MethodCall {
MethodCall(): position(0), method(0), functionalNotation(false), suppressed(false) {}
int position;
const ScLanguage::Method* method;
bool functionalNotation;
bool suppressed;
};
enum CompletionType { ClassCompletion, ClassMethodCompletion, MethodCompletion, InvalidCompletion };
struct CompletionDescription {
bool on;
CompletionType type;
int pos;
int len;
int contextPos;
QString base;
QString text;
QPointer<CompletionMenu> menu;
Token::Type tokenType;
};
struct MethodCallContext {
QStack<MethodCall> stack;
QPointer<CompletionMenu> menu;
QPointer<MethodCallWidget> widget;
};
typedef QStack<MethodCall>::iterator MethodCallIterator;
bool eventFilter(QObject*, QEvent*);
QTextDocument* document();
// completion
void quitCompletion(const QString& reason = QString());
void showCompletionMenu(bool forceShow);
void updateCompletionMenu(bool forceShow);
// method call aid
const ScLanguage::Method* disambiguateMethod(const QString& methodName, int cursorPos);
void updateMethodCall(int cursorPos);
void pushMethodCall(const MethodCall& call);
void showMethodCall(const MethodCall& call, int arg = 0);
void hideMethodCall();
bool trySwitchMethodCallArgument(bool backwards = false);
bool testMethodCall(const MethodCall&, int cursorPos, int& argNum, TokenIterator& argNameToken,
bool strict = false);
static CompletionMenu* menuForClassCompletion(CompletionDescription const& completion, ScCodeEditor* editor);
static CompletionMenu* menuForClassMethodCompletion(CompletionDescription const& completion, ScCodeEditor* editor);
static CompletionMenu* menuForMethodCompletion(CompletionDescription const& completion, ScCodeEditor* editor);
static const ScLanguage::Class* classForToken(Token::Type type, const QString& string);
// utilities
QString tokenText(TokenIterator& it);
QRect globalCursorRect(int cursorPosition);
static QString findHelpClass(QString klass);
static DocNode* parseHelpClass(QString file);
static QString parseClassElement(DocNode* node, QString element);
static void parseClassNode(DocNode* node, QString* str);
// data
ScCodeEditor* mEditor;
CompletionDescription mCompletion;
MethodCallContext mMethodCall;
};
} // namespace ScIDE
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