# QT学习笔记之四 Sort

- URL: https://www.yidoo.xyz/qt-study-notes-the-four-sort
- 作者: 核动力蜗牛
- 发布时间: 2009-04-14
- 更新时间: 2009-04-14
- 分类: 技术笔记
- 标签: qt

这几次主要练习 Qt Designer 的设计，所以就做了对话框，没有去做具体的实现，以后有空再写吧….哇哈哈

主要代码如下：

sortdialog.h

```cpp
#ifndef SORTDAILOG_H
#define SORTDAILOG_H
#include <QtGui/QDialog>
#include "ui_sortdailog.h"
namespace Ui
{
    class sortdailogClass;
}
class sortdailog : public QDialog
{
    Q_OBJECT
public:
    sortdailog(QWidget *parent = 0);
    ~sortdailog();
    void setColumnRange(QChar first,QChar last);  //用来设置列的范围
private:
    Ui::sortdailogClass *ui;
};
#endif // SORTDAILOG_H
```

sortdialog.cpp

```cpp
#include "sortdailog.h"
#include<QtGui>

sortdailog::sortdailog(QWidget *parent)
    : QDialog(parent)
{
    ui->setupUi(this);
    ui->secondaryGroupBox->hide();  //设置为隐藏
    ui->tertiaryGroupBox->hide();    //设置为隐藏
    this->layout()->setSizeConstraint(QLayout::SetFixedSize);  //将此层设置为适合大小
    setColumnRange('A','Z');  //设置默认范围*/
}
sortdailog::~sortdailog()
{
    delete ui;
}
void sortdailog::setColumnRange(QChar first,QChar last)
{
    //清除原有数据
    ui->primaryComboBox->clear();
    ui->secondaryComboBox->clear();
    ui->tertiaryComboBox->clear();
    ui->secondaryComboBox->addItem(tr("None"));
    ui->tertiaryComboBox->addItem(tr("None"));
    ui->primaryComboBox->setMinimumSize(ui->secondaryComboBox->sizeHint());  //设置理想大小
    QChar ch=first;
    while(ch<=last)
    {
        ui->primaryComboBox->addItem(QString(ch));  //QString(ch)因为tr()只能接受字符串类型
        ui->secondaryComboBox->addItem(QString(ch));
        ui->tertiaryComboBox->addItem(QString(ch));
        ch=ch.unicode()+1;
    }
}
```

main.cpp

```cpp
#include <QtGui/QApplication>
#include "sortdailog.h"
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    sortdailog *dialog=new sortdailog;
    dialog->setColumnRange('C','H');
    dialog->show();
    return a.exec();
}
```