QT DirModel QTreeView

DirModel 增加目录 删除文件目录

【dialog.h】

#ifndef DIALOG_H
#define DIALOG_H

#include <QDialog>
#include <QDirModel>
namespace Ui {
class Dialog;
}

class Dialog : public QDialog
{
    Q_OBJECT

public:
    explicit Dialog(QWidget *parent = 0);
    ~Dialog();

private slots:
    void on_pushButton_clicked();

    void on_pushButton_2_clicked();

private:
    Ui::Dialog *ui;
    QDirModel *model;
};

#endif // DIALOG_H

【dialog.cpp】

#include "dialog.h"
#include "ui_dialog.h"
#include <QInputDialog>
Dialog::Dialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Dialog)
{
    ui->setupUi(this);
    model=new QDirModel(this);
    model->setReadOnly(false);
    model->setSorting(QDir::DirsFirst|QDir::IgnoreCase|QDir::Name);
    ui->treeView->setModel(model);

    QModelIndex index=model->index("/Users/zdy/Desktop");
    ui->treeView->expand(index);
    ui->treeView->scrollTo(index);
    ui->treeView->setCurrentIndex(index);
    ui->treeView->resizeColumnToContents(0);
}

Dialog::~Dialog()
{
    delete ui;
}

void Dialog::on_pushButton_clicked()
{
    //make dir
    QModelIndex index = ui->treeView->currentIndex();
    if(!index.isValid())return;
    QString name = QInputDialog::getText(this,"Name","Enter a name");
    if(name.isEmpty())return;
    model->mkdir(index,name);
}

void Dialog::on_pushButton_2_clicked()
{
    QModelIndex index = ui->treeView->currentIndex();
    //delete
    if(!index.isValid())return;
    if(model->fileInfo(index).isDir()){
        model->rmdir(index);
    }else{
        model->remove(index);
    }
}