data.h

嵌入式Qt下的一个计算器源码

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** Copyright (C) 2000-2006 TROLLTECH ASA. All rights reserved.
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** This file is part of the Phone Edition of the Qtopia Toolkit.
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#ifndef CALCULATOR_DATA_H
#define CALCULATOR_DATA_H

#include <qtopia/qtopiaglobal.h>
#include <QString>
#include <QPainter>
#include <QBitmap>

class Data {
public:
    Data();
    virtual ~Data();

    virtual bool push(char,bool commit=true);
    virtual bool del(); // Returns true if the item is to be deleted completely
    virtual void clear();

    virtual QString getType();
    virtual QString getFormattedOutput();
    virtual QPixmap *draw();
    QBitmap *cache;
protected:
    QString formattedOutput, cachedOutput;
};

#endif