二、头文件：

  @名称：IPV4、IPV6(未完)、MAC输入部件

  @日期：2013年6月25日

  @作者：zhj

  @提示：有许多繁琐的地方，日后改进、对IP规范未做详细检查（日后改进）

#ifndef IPLINEEDIT_H

#define IPLINEEDIT_H

//#define IPV4

//#define IPV6

#define MAC_AREA "ABCDEFacbcdef0123456789"

#include <QWidget>

#include <QLabel>a

#include <QMessageBox>

#include <QLineEdit>

#include <QKeyEvent>

#include <QMouseEvent>

#include <QIntValidator>

#include <QRegExp>

#include <QRegExpValidator>

#include <iostream>

using namespace std;

//ip地址部分类

class ipPart : public QLineEdit

{

    Q_OBJECT

public:

    ipPart(QFrame *parent = 0,int type = 0);

    ~ipPart();

    int type_value;

private slots:

    void textIpvCheck(const QString &text);

    void macModify(QString);

private:

    QLineEdit *nextLineEdit;

    QLineEdit *lastLineEdit;

    QString m_keyStr;

signals:

    void sendMsg(QString);

protected:

    void keyPressEvent(QKeyEvent *event);

public:

    void getNextEdit(QLineEdit *nextEdit);

    void getLastEdit(QLineEdit *lastEdit);

};

//ip地址整体类

class ipLine : public QFrame

{

    Q_OBJECT

public:

    ipLine(QWidget *parent = 0,int type = 0);

    ~ipLine(void);

    enum editType

    {

        IPV4,

        IPV6,

        MAC

    };

public:

    ipPart *ipv4Edit1;

    ipPart *ipv4Edit2;

    ipPart *ipv4Edit3;

    ipPart *ipv4Edit4;

    ipPart *macEdit1;

    ipPart *macEdit2;

    ipPart *macEdit3;

    ipPart *macEdit4;

    ipPart *macEdit5;

    ipPart *macEdit6;

    int type_value;

private:

    void ipv4LineInit();

    void macLineInit();

public:

    QString getInfor();

    void setInfor(const QString ipStr);

    void clear();

private slots:

    void disPlayInfor();

};

#endif // IPLINEEDIT_H

三、源文件

#include "ipLineEdit.h"

ipPart::ipPart(QFrame *parent,int type):QLineEdit(parent),type_value(type)

{

    nextLineEdit = NULL;

    lastLineEdit = NULL;

    flag = 1;

    this->setAlignment(Qt::AlignCenter);

    this->setFrame(false);

    if(type_value == 0)

    {

        this->setMaxLength(3);

        this->setValidator(new QIntValidator(0,255,this));

        this->setText(tr("0"));

    }

    if(type_value == 1)

    {

    }

    if(type_value == 2)

    {

        this->setMaxLength(2);

        QRegExp rx;

        rx.setPattern(QString("^[0-9A-Fa-f]+$"));

        this->setValidator(new QRegExpValidator(rx,this));

        this->setText(tr("FF"));

    }

    connect(this,SIGNAL(textChanged(QString)),this,SLOT(textIpvCheck(QString)));

    connect(this,SIGNAL(sendMsg(QString)),this,SLOT(macModify(QString)));

}

ipPart::~ipPart()

{

}

//输入文本检查

void ipPart::textIpvCheck(const QString &text)

{

    if(type_value == 0)

    {

        if(text.size()>1)

        {

            if(text.size()==2)

            {

                int num = text.toInt();

                QString str = QString::number(num,10);

                this->setText(str);

                if(num > 25)

                {

                    //移动焦点位置

                    if(nextLineEdit)

                    {

                        nextLineEdit->setFocus();

                        nextLineEdit->selectAll();

                    }

                }

            }

            else

            {

                int num = text.toInt();

                QString str = QString::number(num,10);

                this->setText(str);

                //移动焦点位置

                if(nextLineEdit)

                {

                    nextLineEdit->setFocus();

                    nextLineEdit->selectAll();

                }

            }

        }

    }

    if(type_value == 1)

    {

        if(text.size() >= 4)

        {

            if(nextLineEdit)

            {

                nextLineEdit->setFocus();

                nextLineEdit->selectAll();

            }

        }

    }

    if(type_value == 2)

    {

        //MAC地址删除操作

        if(text.size() == 1)

        {

            if(this->cursorPosition() == 1)

            {

                QString tmpStr = this->text();

                const char *str = tmpStr.toStdString().c_str();

                char des[3] = {0};

                strcpy(des,str);

                des[1] = 'F';

                des[2] = '\0';

                this->setText(des);

                this->setCursorPosition(1);

            }

            else                                    //this->cursorPosition() == 0

            {

                QString tmpStr = this->text();

                const char *str = tmpStr.toStdString().c_str();

                char des[3] = {0};

                strcpy(des,str);

                des[1] = des[0];

                des[0] = 'F';

                des[2] = '\0';

                this->setText(des);

                this->setCursorPosition(0);

            }

        }

    }

}

//MAC地址修改函数

void ipPart::macModify(QString macStr)

{

    if(type_value == 2)

    {

        if((this->text().size() == 2)  && (this->cursorPosition() != 2))

        {

            if(this->cursorPosition() == 0)

            {

                const char * keyStr = macStr.toStdString().c_str();

                char sour[3] = {0};

                strcpy(sour,keyStr);

                strupr(sour);                   //将sour数组中的小写字母转换为大写

                if(strspn(keyStr,MAC_AREA))      //判断输入是否在规定范围

                {

                    QString tmpStr = this->text();

                    const char *str = tmpStr.toStdString().c_str();

                    char des[3] = {0};

                    strcpy(des,str);

                    des[0] = sour[0];

                    this->setText(des);

                    this->setCursorPosition(1);

                }

            }

            else if(this->cursorPosition() == 1)

            {

                const char * keyStr = macStr.toStdString().c_str();

                char sour[3] = {0};

                strcpy(sour,keyStr);

                strupr(sour);

                if(strspn(keyStr,MAC_AREA))      //判断输入是否在规定范围

                {

                    QString tmpStr = this->text();

                    const char *str = tmpStr.toStdString().c_str();

                    char des[3] = {0};

                    strcpy(des,str);

                    des[1] = sour[0];

                    this->setText(des);

                    if(nextLineEdit)

                    {

                        this->nextLineEdit->setFocus();

                        this->nextLineEdit->setCursorPosition(0);

                    }

                }

            }

        }

    }

}

//键盘事件（只包含小数点"." 删除键 光标移动键(左、右)的事件操作）

void ipPart::keyPressEvent(QKeyEvent *event)

{

    //QMessageBox::information(this,"123",event->text());                                  //获取键盘输入的字符

    if(event->key() == Qt::Key_Period)

    {

        //移动焦点位置

        if(nextLineEdit)

        {

            if(this->text().isEmpty())

            {

                //do nothing

            }

            else if(this->hasSelectedText())

            {

                //do nothing

            }

            else

            {

                nextLineEdit->setFocus();

                nextLineEdit->selectAll();

            }

        }

    }

    if(event->key() == Qt::Key_Backspace)

    {

        if(lastLineEdit && this->cursorPosition() == 0)

        {

            lastLineEdit->setFocus();

            lastLineEdit->setCursorPosition(2);

        }

    }

    if(event->key() == Qt::Key_Left)

    {

        //获取光标在文本框中的位置

        if(this->cursorPosition() == 0)

        {

            if(lastLineEdit)

            {

                lastLineEdit->setFocus();

                //lastLineEdit->selectAll();

            }

        }

    }

    if(event->key() == Qt::Key_Right)

    {

        //当字符串长度与光标的位置相等时证明光标在文本框的最后

        if(this->cursorPosition() == this->text().length())

        {

            if(nextLineEdit)

            {

                nextLineEdit->setFocus();

            }

        }

    }

    if(!(m_keyStr = event->text()).isEmpty())

    {

        emit sendMsg(m_keyStr);

    }

    QLineEdit::keyPressEvent(event);                //其余操作转交给父类的键盘事件处理函数处理

}

//以下两个函数键盘事件使用

void ipPart::getNextEdit(QLineEdit *nextEdit)

{

    nextLineEdit = nextEdit;

}

void ipPart::getLastEdit(QLineEdit *lastEdit)

{

    lastLineEdit = lastEdit;

}

/////////////////////////////////////////////////////////////////////////////////

//ip地址整体类的实现

ipLine::ipLine(QWidget *parent,int type):QFrame(parent),type_value(type)

{

    if(type_value == IPV4)

    {

        ipv4LineInit();

    }

    if(type_value == IPV6)

    {

    }

    if(type_value == MAC)

    {

        macLineInit();

    }

    this->setFixedSize(164,24);

}

ipLine::~ipLine()

{

}

void ipLine::ipv4LineInit()

{

    ipv4Edit1 = new ipPart(this);

    ipv4Edit2 = new ipPart(this);

    ipv4Edit3 = new ipPart(this);

    ipv4Edit4 = new ipPart(this);

    QLabel *ipv4Label1 = new QLabel(tr("."),this);

    QLabel *ipv4Label2 = new QLabel(tr("."),this);

    QLabel *ipv4Label3 = new QLabel(tr("."),this);

    ipv4Edit1->setGeometry(2,1,40,22);

    ipv4Edit2->setGeometry(42,1,40,22);

    ipv4Edit3->setGeometry(82,1,40,22);

    ipv4Edit4->setGeometry(122,1,38,22);

    ipv4Label1->setGeometry(40,1,2,22);

    ipv4Label2->setGeometry(80,1,2,22);

    ipv4Label3->setGeometry(120,1,2,22);

    ipv4Edit1->getNextEdit(ipv4Edit2);

    ipv4Edit2->getNextEdit(ipv4Edit3);

    ipv4Edit3->getNextEdit(ipv4Edit4);

    ipv4Edit4->getNextEdit(NULL);

    ipv4Edit1->getLastEdit(NULL);

    ipv4Edit2->getLastEdit(ipv4Edit1);

    ipv4Edit3->getLastEdit(ipv4Edit2);

    ipv4Edit4->getLastEdit(ipv4Edit3);

}

void ipLine::macLineInit()

{

    macEdit1 = new ipPart(this,2);

    macEdit2 = new ipPart(this,2);

    macEdit3 = new ipPart(this,2);

    macEdit4 = new ipPart(this,2);

    macEdit5 = new ipPart(this,2);

    macEdit6 = new ipPart(this,2);

    QLabel *macLabel1 = new QLabel(tr(":"),this);

    QLabel *macLabel2 = new QLabel(tr(":"),this);

    QLabel *macLabel3 = new QLabel(tr(":"),this);

    QLabel *macLabel4 = new QLabel(tr(":"),this);

    QLabel *macLabel5 = new QLabel(tr(":"),this);

    macEdit1->setGeometry(2,1,27,22);

    macEdit2->setGeometry(29,1,27,22);

    macEdit3->setGeometry(56,1,27,22);

    macEdit4->setGeometry(83,1,27,22);

    macEdit5->setGeometry(110,1,27,22);

    macEdit6->setGeometry(137,1,25,22);

    macLabel1->setGeometry(27,1,4,22);

    macLabel2->setGeometry(54,1,4,22);

    macLabel3->setGeometry(81,1,4,22);

    macLabel4->setGeometry(108,1,4,22);

    macLabel5->setGeometry(135,1,4,22);

    macEdit1->getNextEdit(macEdit2);

    macEdit2->getNextEdit(macEdit3);

    macEdit3->getNextEdit(macEdit4);

    macEdit4->getNextEdit(macEdit5);

    macEdit5->getNextEdit(macEdit6);

    macEdit6->getNextEdit(NULL);

    macEdit1->getLastEdit(NULL);

    macEdit2->getLastEdit(macEdit1);

    macEdit3->getLastEdit(macEdit2);

    macEdit4->getLastEdit(macEdit3);

    macEdit5->getLastEdit(macEdit4);

    macEdit6->getLastEdit(macEdit5);

}

//获取ip地址

QString ipLine::getInfor()

{

    QString ipStr;

    if(type_value == IPV4)

    {

        if(ipv4Edit1->text().isEmpty()&&ipv4Edit2->text().isEmpty()

                &&ipv4Edit3->text().isEmpty()&&ipv4Edit4->text().isEmpty())

        {

            return "ip is empty";

        }

        else if(ipv4Edit1->text() == "0")

        {

            return " the first part of the ipaddress\n can not be 0";

        }

        else

        {

            ipStr = ipv4Edit1->text() + "." + ipv4Edit2->text() +

                    "." + ipv4Edit3->text() + "." + ipv4Edit4->text();

            return ipStr;

        }

    }

    if(type_value == IPV6)

    {

    }

    if(type_value == MAC)

    {

        ipStr = macEdit1->text()+":"+macEdit2->text()+":"+macEdit3->text()+":"+macEdit4->text()+":"+macEdit5->text()+":"+macEdit6->text();

    }

}

//地址设置函数(字符串处理函数，有点繁琐)

void ipLine::setInfor(const QString ipStr)

{

    string ip_str = ipStr.toStdString();

    const char* ch = ip_str.c_str();

    if(type_value == IPV4)

    {

        char c = '.';

        char tem[20] = {0};

        strcpy(tem,ch);

        char *temp = tem;

        int tempNum = strchr(temp,c) - temp;

        char buf[10] = {0};

        strncpy(buf,temp,tempNum);

        buf[tempNum] = '\0';

        ipv4Edit1->setText(buf);

        char *cc = ".";

        temp = strstr(temp,cc)+1;

        tempNum = strchr(temp,c)  - temp;

        strncpy(buf,temp,tempNum);

        buf[tempNum] = '\0';

        ipv4Edit2->setText(buf);

        temp = strstr(temp,cc) + 1;

        tempNum = strchr(temp,c) - temp;

        strncpy(buf,temp,tempNum);

        buf[tempNum] = '\0';

        ipv4Edit3->setText(buf);

        temp = strstr(temp,cc) + 1;

        ipv4Edit4->setText(temp);

    }

    if(type_value == IPV6)

    {

    }

    if(type_value == MAC)

    {

        char c = ':';

        char tem[20] = {0};

        strcpy(tem,ch);

        char *temp = tem;

        int tempNum = strchr(temp,c)-temp;

        char buf[10] = {0};

        strncpy(buf,temp,tempNum);

        buf[tempNum] = '\0';

        strupr(buf);

        macEdit1->setText(buf);

        char *cc = ":";

        temp = strstr(temp,cc)+1;

        tempNum = strchr(temp,c) - temp;

        strncpy(buf,temp,tempNum);

        buf[tempNum] = '\0';

        strupr(buf);

        macEdit2->setText(buf);

        temp = strstr(temp,cc)+1;

        tempNum = strchr(temp,c) - temp;

        strncpy(buf,temp,tempNum);

        buf[tempNum] = '\0';

        strupr(buf);

        macEdit3->setText(buf);

        temp = strstr(temp,cc)+1;

        tempNum = strchr(temp,c) - temp;

        strncpy(buf,temp,tempNum);

        buf[tempNum] = '\0';

        strupr(buf);

        macEdit4->setText(buf);

        temp = strstr(temp,cc)+1;

        tempNum = strchr(temp,c) - temp;

        strncpy(buf,temp,tempNum);

        buf[tempNum] = '\0';

        strupr(buf);

        macEdit5->setText(buf);

        temp = strstr(temp,cc)+1;

        strupr(temp);

        macEdit6->setText(temp);

    }

}

void ipLine::clear()

{

    if(type_value == IPV4)

    {

        ipv4Edit1->clear();

        ipv4Edit2->clear();

        ipv4Edit3->clear();

        ipv4Edit4->clear();

    }

    if(type_value == IPV6)

    {

    }

    if(type_value == MAC)

    {

        macEdit1->clear();

        macEdit2->clear();

        macEdit3->clear();

        macEdit4->clear();

        macEdit5->clear();

        macEdit6->clear();

    }

}

//显示ip地址槽函数

void ipLine::disPlayInfor()

{

    QMessageBox::information(this,"information",getInfor());

}