completion.h

qtopia的源程序,一种嵌入式图形操作系统

/****************************************************************************
**
** Copyright (C) 1992-$THISYEAR$ Trolltech AS. All rights reserved.
**
** This file is part of the $MODULE$ of the Qt Toolkit.
**
** $LICENSE$
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef COMPLETION_H
#define COMPLETION_H

#include <qstring.h>
#include <qstringlist.h>
#include <qobject.h>
#include <qmap.h>

#include "q3valuelist.h"

#include <QEvent>

class Q3TextDocument;
class Editor;
class Q3VBox;
class Q3ListBox;
class ArgHintWidget;

struct CompletionEntry
{
    QString type;
    QString text;
    QString postfix;
    QString prefix;
    QString postfix2;

    bool operator==(const CompletionEntry &c) const {
	return (c.type == type &&
		 c.text == text &&
		 c.postfix == postfix &&
		 c.prefix == prefix &&
		 c.postfix2 == postfix2);
    }
};

class EditorCompletion : public QObject
{
    Q_OBJECT

public:
    EditorCompletion(Editor *e);
    ~EditorCompletion();

    virtual void addCompletionEntry(const QString &s, Q3TextDocument *doc, bool strict);
    virtual Q3ValueList<CompletionEntry> completionList(const QString &s, Q3TextDocument *doc) const;
    virtual void updateCompletionMap(Q3TextDocument *doc);

    bool eventFilter(QObject *o, QEvent *e);
    virtual void setCurrentEdior(Editor *e);
    virtual bool doCompletion();
    virtual bool doObjectCompletion();
    virtual bool doObjectCompletion(const QString &object);
    virtual bool doArgumentHint(bool useIndex);

    virtual void addEditor(Editor *e);
    virtual Q3ValueList<QStringList> functionParameters(const QString &func, QChar &, QString &prefix, QString &postfix);

    virtual void setContext(QObject *this_);

    void setEnabled(bool b) { enabled = b; }

protected:
    virtual bool continueComplete();
    virtual void showCompletion(const Q3ValueList<CompletionEntry> &lst);
    virtual void completeCompletion();

protected:
    Q3VBox *completionPopup;
    Q3ListBox *completionListBox;
    ArgHintWidget *functionLabel;
    int completionOffset;
    Editor *curEditor;
    QString searchString;
    Q3ValueList<CompletionEntry> cList;
    QMap<QChar, QStringList> completionMap;
    bool enabled;
    Q3TextDocument *lastDoc;

};

#endif