6.图形化列表查询显示

  • UI

  •  

  • 关键代码 mainwindow.h 
    1 QStringListModel *slm;
2 QStringList *sl;

    mainwindow.cpp    init初始化

     1  //初始化combox
 2     ui->comboBox->insertItem(0,"山羊座","山羊座1");
 3     ui->comboBox->insertItem(1,"处女座","处女座");
 4     ui->comboBox->insertItem(2,"双鱼座","双鱼座1");
 5     ui->comboBox->insertItem(3,"狮子座","狮子座1");
 6 
 7     this->sl = new QStringList();
 8     this->sl->append("中文数据测试123a");
 9     this->slm=new QStringListModel(this);
10     this->slm->setStringList(*sl);
11     ui->listView->setModel(slm);

    click事件

     1 void MainWindow::on_pushButton_clicked()
 2 {
 3     this->sl->clear();
 4 
 5     QString qstr = ui->comboBox->currentText();
 6     ui->lineEdit->setText(qstr);
 7 
 8     qDebug()<<qstr;
 9     //转换为C风格的字符串(字符串严格转换)
10     const char *psearch = qstr.toStdString().c_str();
11     qDebug()<<psearch;
12 
13     ifstream fin("C:\\nasa.txt");
14 
15     if(!fin)
16     {
17         qDebug()<<"文件打开失败";
18         return;
19     }
20     else
21     {
22         qDebug()<<"文件打开成功";
23     }
24 
25     //用于读取文件
26     char strall[3001]={0};
27     //设置读取个数
28     int read_count=0;
29     while(!fin.eof())
30     {
31        read_count++;
32 
33        if(read_count>15000)
34        {
35            qDebug()<<strall<<endl;
36            break;
37        }
38 
39        //读取
40        memset(strall,0,sizeof(strall));
41        fin.getline(strall,3000);
42 
43         //设置编码方式,解决乱码问题
44         QTextCodec *codec = QTextCodec::codecForName("gb2312");
45         QString qstrall = codec->toUnicode(strall);
46 
47         //转化为C风格
48         const char *pstrall = qstrall.toStdString().c_str();
49         char *pfind = strstr(pstrall,psearch);
50 
51         if(pfind!=NULL)
52         {
53             qDebug()<<pstrall;
54             //添加到列表
55             sl->append(qstrall);
56         }
57      }
58 
59     this->slm->setStringList(*sl);
60     ui->listView->setModel(slm);
61 }
    comboBox_currentIndexChanged
    1 void MainWindow::on_comboBox_currentIndexChanged(int index)
2 {
3     QString qstr = ui->comboBox->currentText();
4     ui->lineEdit->setText(qstr);
5 }

     

posted @ 2018-04-08 12:59  喵小喵~  阅读(263)  评论(0)  编辑  收藏  举报