qt_网络设置

Qt中没有网络设置的组件，初步的想法是通过execvp函数调用shell命令进行网络设置。

所以首先，要保证shell命令的可用性，ifconfig，route等。

先创建一个文本框：

1     ipLabel = new QLabel(tr("&Ip:"));
2     ipLineEdit = new QLineEdit("192.168.1.224");
3     ipLabel->setBuddy(ipLineEdit);

再设置输入格式和注册Field：

1     ipLineEdit->setInputMask("000.000.000.000;_");
2     registerField("ip", ipLineEdit);

先提取文本框的字符串：

1 QString ipString = field("ip").toString();
2 char ipBuf[20] = {0};
3 strncpy(ipBuf, ipString.toStdString().c_str(), sizeof(ipBuf));

再通过宏进行设置IP：

1 Run("/sbin/ifconfig", "eth0", ipBuf, "netmask", maskBuf);

==============================================================================================

具体代码如下：

networkpage.h

 1 #ifndef NETWORKPAGE_H
 2 #define NETWORKPAGE_H
 3 
 4 #include <QWizard>
 5 
 6 QT_BEGIN_NAMESPACE
 7 class QLabel;
 8 class QLineEdit;
 9 class QGridLayout;
10 class QRadioButton;
11 QT_END_NAMESPACE
12 
13 class NetworkPage : public QWizardPage
14 {
15     Q_OBJECT
16 
17 public:
18     NetworkPage(QWidget *parent = 0);
19     ~NetworkPage();
20     bool validatePage ();
21 private:
22     int execute(char *arglist[]);
23 
24     QLabel *ipLabel;
25     QLabel *maskLabel;
26     QLabel *gatewayLabel;
27     QLabel *dnsLabel;
28     QLineEdit *ipLineEdit;
29     QLineEdit *maskLineEdit;
30     QLineEdit *gatewayLineEdit;
31     QLineEdit *dnsLineEdit;
32     QGridLayout *layout;
33     QRadioButton *dhcpRadioButton;
34     QRadioButton *settingRadioButton;
35 };
36 
37 #endif /* NETWORKPAGE_H */

networkpage.cpp：

  1 #include <QtGui>
  2 #include <stdio.h>
  3 #include <unistd.h>  
  4 #include <sys/types.h>
  5 #include <sys/wait.h>
  6 
  7 #include "networkpage.h"
  8 
  9 #define Run(al0, al1, al2, al3, al4) {char *arglist[6]; \
 10                                           arglist[0]=al0; \
 11                                           arglist[1]=al1; \
 12                                           arglist[2]=al2; \
 13                                           arglist[3]=al3; \
 14                                           arglist[4]=al4; \
 15                                           arglist[5]=NULL; \
 16                                           if(execute(arglist)) \
 17                                                                                         return 1;}
 18 
 19 NetworkPage::NetworkPage(QWidget *parent)
 20     : QWizardPage(parent)
 21 {
 22     setTitle(tr("Network setting"));
 23     setSubTitle(tr("Specify where you want the wizard to put the generated "
 24                                  "skeleton code."));
 25     setPixmap(QWizard::LogoPixmap, QPixmap(":/images/logo2.png"));
 26 
 27     ipLabel = new QLabel(tr("&Ip:"));
 28     ipLineEdit = new QLineEdit("192.168.1.224");
 29     ipLabel->setBuddy(ipLineEdit);
 30 
 31     maskLabel = new QLabel(tr("&Mask:"));
 32     maskLineEdit = new QLineEdit("255.255.255.0");
 33     maskLabel->setBuddy(maskLineEdit);
 34 
 35     gatewayLabel = new QLabel(tr("&Gateway:"));
 36     gatewayLineEdit = new QLineEdit("192.168.1.1");
 37     gatewayLabel->setBuddy(gatewayLineEdit);
 38 
 39     dnsLabel = new QLabel(tr("&DNS:"));
 40     dnsLineEdit = new QLineEdit("192.168.1.7");
 41     dnsLabel->setBuddy(dnsLineEdit);
 42 
 43     ipLabel->setEnabled(false);
 44     ipLineEdit->setEnabled(false);
 45     maskLabel->setEnabled(false);
 46     maskLineEdit->setEnabled(false);
 47     gatewayLabel->setEnabled(false);
 48     gatewayLineEdit->setEnabled(false);
 49     dnsLabel->setEnabled(false);
 50     dnsLineEdit->setEnabled(false);
 51 
 52     ipLineEdit->setInputMask("000.000.000.000;_");
 53     maskLineEdit->setInputMask("000.000.000.000;_");
 54     gatewayLineEdit->setInputMask("000.000.000.000;_");
 55     dnsLineEdit->setInputMask("000.000.000.000;_");
 56 
 57 
 58     dhcpRadioButton = new QRadioButton(tr("DHCP"));
 59     dhcpRadioButton->setChecked(true);
 60     
 61     settingRadioButton = new QRadioButton(tr("setting"));
 62     //settingRadioButton->setChecked(true);
 63 
 64     registerField("ip", ipLineEdit);
 65     registerField("mask", maskLineEdit);
 66     registerField("gateway", gatewayLineEdit);
 67     registerField("dns", gatewayLineEdit);
 68     registerField("dhcp", dhcpRadioButton);
 69     registerField("setting", settingRadioButton);
 70 
 71     connect(settingRadioButton, SIGNAL(toggled(bool)), ipLabel, SLOT(setEnabled(bool)));
 72     connect(settingRadioButton, SIGNAL(toggled(bool)), ipLineEdit, SLOT(setEnabled(bool)));
 73     connect(settingRadioButton, SIGNAL(toggled(bool)), maskLabel, SLOT(setEnabled(bool)));
 74     connect(settingRadioButton, SIGNAL(toggled(bool)), maskLineEdit, SLOT(setEnabled(bool)));
 75     connect(settingRadioButton, SIGNAL(toggled(bool)), gatewayLabel, SLOT(setEnabled(bool)));
 76     connect(settingRadioButton, SIGNAL(toggled(bool)), gatewayLineEdit, SLOT(setEnabled(bool)));
 77     connect(settingRadioButton, SIGNAL(toggled(bool)), dnsLabel, SLOT(setEnabled(bool)));
 78     connect(settingRadioButton, SIGNAL(toggled(bool)), dnsLineEdit, SLOT(setEnabled(bool)));
 79 
 80 
 81     layout = new QGridLayout;
 82     layout->addWidget(dhcpRadioButton, 0, 0, 1, 3);
 83     layout->addWidget(settingRadioButton, 1, 0, 1, 3);
 84     layout->addWidget(ipLabel, 2, 0);
 85     layout->addWidget(ipLineEdit, 2, 1);
 86     layout->addWidget(maskLabel, 3, 0);
 87     layout->addWidget(maskLineEdit, 3, 1);
 88     layout->addWidget(gatewayLabel, 4, 0);
 89     layout->addWidget(gatewayLineEdit, 4, 1);
 90     layout->addWidget(dnsLabel, 5, 0);
 91     layout->addWidget(dnsLineEdit, 5, 1);
 92 
 93     setLayout(layout);
 94 
 95 }
 96 
 97 NetworkPage::~NetworkPage()
 98 {
 99         delete ipLabel;
100         delete ipLineEdit;
101         delete maskLabel;
102         delete maskLineEdit;
103         delete gatewayLabel;
104         delete gatewayLineEdit;
105         delete dnsLabel;
106         delete dnsLineEdit;
107         delete dhcpRadioButton;
108         delete settingRadioButton;
109         delete layout;
110 }
111 
112 int NetworkPage::execute(char *arglist[])  
113 {  
114       int pid, exitstatus;     
115       pid = fork();
116         
117       switch (pid) {  
118         case -1:  
119           perror("fork failed");  
120           return 1;                                               
121         case 0:                                                                         
122           execvp(arglist[0], arglist);  
123           perror("execvp failed");  
124           return 1;  
125         default:  
126           while(wait(&exitstatus) != pid);  
127         }  
128       return 0;    
129 }
130 
131 bool NetworkPage::validatePage()
132 {
133         if (field("dhcp").toBool())
134         {
135                 printf("use dhcp\n");
136         }
137         else if (field("setting").toBool())
138         {
139                 printf("use setting\n");
140 
141                 QString ipString = field("ip").toString();
142                 QString maskString = field("mask").toString();
143                 QString gatewayString = field("gateway").toString();
144                 QString dnsString = field("dns").toString();
145 
146                 char ipBuf[20] = {0};
147                 char maskBuf[20] = {0};
148                 char gatewayBuf[20] = {0};
149                 char dnsBuf[20] = {0};
150 
151                 strncpy(ipBuf, ipString.toStdString().c_str(), sizeof(ipBuf));
152                 strncpy(maskBuf, maskString.toStdString().c_str(), sizeof(maskBuf));
153                 strncpy(gatewayBuf, gatewayString.toStdString().c_str(), sizeof(gatewayBuf));
154                 strncpy(dnsBuf, dnsString.toStdString().c_str(), sizeof(dnsBuf));
155 
156                 Run("/sbin/ifconfig", "eth0", ipBuf, "netmask", maskBuf);
157                 Run("/sbin/route add default gw", gatewayBuf, NULL, NULL, NULL);
158                 Run("/bin/echo", "nameserver", dnsBuf, ">> /etc/resolv.conf", NULL);
159         }
160         
161         //wizard()->next();
162         return true;
163 }

posted on 2013-02-20 10:19 孜求嵌道阅读(4459) 评论(0) 编辑收藏举报