display.h

嵌入式Qt下的一个计算器源码

/****************************************************************************
**
** Copyright (C) 2000-2006 TROLLTECH ASA. All rights reserved.
**
** This file is part of the Phone Edition of the Qtopia Toolkit.
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** authorized distributors may use this file in accordance with
** the License Agreement provided with the Licensed Software.
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**   information about Trolltech's Commercial License Agreements.
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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#ifndef CALCULATOR_DISPLAY_H
#define CALCULATOR_DISPLAY_H

#include <QStack>
#include <QScrollArea>
#include "data.h"

class MyLcdDisplay:public QScrollArea {
    Q_OBJECT
public:
    MyLcdDisplay(QWidget *p=0);
    ~MyLcdDisplay();

    QSize sizeHint() const;

public slots:
    void readStack();

protected:
    void paintEvent(QPaintEvent *pe);

private:
    QBitmap *lcdPixmap;
    QPainter *lcdPainter;
#ifdef QTOPIA_PHONE
    int drawNextItem(int,bool,int);
#endif
    int dataLeft,verticalOffset;
    QStack<QString*> *niStack;
    QStack<Data*> *ndStack;
    QFont bigFont, smallFont;
};

#endif