C++ QFileDialog::getSaveFileName方法代码示例

void Main_win::save_clicked()
{
  try
  {
    QFileDialog fd;
    fd.setDefaultSuffix(".mat"); // not working under linux?!

    QString q_form = fd.getSaveFileName(this, tr("Save Matrix"));

    std::ofstream target(q_form.toStdString(), std::ios::trunc);

    if(target.fail()) throw std::ios_base::failure("cannot save matrix");

    for(int i = 0; i < mat_dim_.first; ++i)
    {
      for(int j = 0; j < mat_dim_.second; ++j)
      {
        auto item = qobject_cast< Field* >(ui_->mat_layout->itemAtPosition(i,
                                           j)->widget());
        if(item)
          target << item->get_text() << " ";
      }
      target << "\n";
    }

    target.close();
  }
  catch(std::exception& e)
  {
    to_display(e.what());
  }
}

void SpriteSceneConverter::exportar() {

    QSettings settings("toglia3d","SpriteSceneConverter");
    QString rutaExportar = settings.value("rutaExportar", QString("/home")).toString();

    QFileDialog saveDialog;
    saveDialog.confirmOverwrite();

    QString ruta = saveDialog.getSaveFileName(
                       this,
                       tr("Exportar archivo"),
                       rutaExportar,
                       tr("*.xml"),
                       QFileDialog::ShowDirsOnly & QFileDialog::HideNameFilterDetails
                   );


    if(!rutaCargarArchivo.isEmpty()) {
        QSettings settings("toglia3d","SpriteSceneConverter");
        settings.setValue("rutaExportar", ruta);
        if(!ruta.endsWith(".2ds")) {
            ruta = ruta+".2ds";
        }
        escribirXml(ruta, mModelo);
    }

}

void smallPictureView::saveAs(){
    if(!allImgs.isEmpty()){
        QFileDialog *fileDialog = new QFileDialog(this);//创建一个QFileDialog对象，构造函数中的参数可以有所添加。
        fileDialog->setWindowTitle(tr("Save As"));//设置文件保存对话框的标题
        fileDialog->setAcceptMode(QFileDialog::AcceptSave);//设置文件对话框为保存模式
        fileDialog->setFileMode(QFileDialog::AnyFile);//设置文件对话框弹出的时候显示任何文件，不论是文件夹还是文件
        fileDialog->setViewMode(QFileDialog::Detail);//文件以详细的形式显示，显示文件名，大小，创建日期等信息；
        QString filename = fileDialog->getSaveFileName(this, tr("Save File"), "/home/wz/img/未命名.png", tr("Images (*.png)"));
        qDebug()<<filename<<currentfile;
        fileDialog->setGeometry(10,30,100,200);//设置文件对话框的显示位置

        saveAsThread->saveAsFlag = 1;
        saveAsThread->breakNum = 1;
        if(!saveAsThread->allImgs.isEmpty()){
            saveAsThread->allImgs.clear();
        }
        saveAsThread->allImgs = allImgs;
        saveAsThread->imgNum = imgNum;
        saveAsThread->filename = filename;
        saveAsThread->selectedNum = selectedNum;
        saveAsThread->start();
    }else{
        QMessageBox message(QMessageBox::NoIcon, "提示", "请先选择图片文件!");
        message.setIconPixmap(QPixmap("../2.png"));
        message.exec();
    }

}

void MainWindow::on_actionSave_triggered()
{
    QFileDialog dlg;
    dlg.setAcceptMode(QFileDialog::AcceptSave);
    QString fileName = dlg.getSaveFileName();
    qDebug() << fileName;

    result->save(fileName);
}

void QSimTestGUI::SaveScenario(QString filename){
  if(filename.isEmpty()){
    QFileDialog f;
    filename = f.getSaveFileName(0,"Save State",QDir::home().absolutePath(),"");
  }
  if(!filename.isNull()){
    string str = filename.toStdString();
    SendCommand("save_state",str);
    old_filename=filename;
  }
}

void CRunGui::saveHistStats()
{
	QFileDialog saveHistDlg;
	saveHistDlg.setFilter("Text files (*.csv)");
	saveHistDlg.setFilter("All files (*.*)");
	ActualFN = saveHistDlg.getSaveFileName(this);
	if (ActualFN.isEmpty())return;
	ActualFN=ActualFN.left(ActualFN.lastIndexOf("."))+".csv";
	if (Env.Statist.SaveActHistStatist(ActualFN.toAscii().data(),Env.Time,&Env.Grid))
		statusBar()->showMessage(tr("Histogram statistics saved."));
	else
		statusBar()->showMessage(tr("Histogram statistics were not saved."));
}

void CRunGui::saveTimeStats()
{
	QFileDialog saveAggrDlg;
	saveAggrDlg.setFilter("Text files (*.csv)");
	saveAggrDlg.setFilter("All files (*.*)");
	ActualFN = saveAggrDlg.getSaveFileName(this);
	if (ActualFN.isEmpty())return;
	ActualFN=ActualFN.left(ActualFN.lastIndexOf("."))+".csv";

    if (Env.Statist.SaveTimeStatist_InColumnsAppend(ActualFN.toAscii().data()))
		statusBar()->showMessage(tr("Time statistics saved."));
	else
		statusBar()->showMessage(tr("Time statistics were not saved."));
}

void ProjectHandle::saveProject(){

    if(this->projPath==""){
        QFileDialog dlg;
        dlg.setDefaultSuffix("fproj");
        QString path = dlg.getSaveFileName(NULL,tr("Project location"), ".",tr("Project files (*.fproj)"));
        if(path.isEmpty()){
            return;
        }
        QFileInfo inf(path);
        if(inf.suffix()!="fproj"){
            QString tmp=inf.baseName();
            tmp+=".fproj";
            path=inf.absolutePath()+"/"+tmp;
        }
        this->projPath=path;
    }


    QFileInfo inf(projPath);
    QDomDocument doc(inf.baseName());
    QDomElement root =  doc.createElement("Project");
    doc.appendChild(root);
    root.setAttribute("appVersion",version);
    root.setAttribute("Name",projName);

    QHash<QString,PObject>::iterator iter;

    iter=projObjects.begin();
    for(int i=0;i<projObjects.size();i++){
        PObject tmp=iter.value();
        QDomElement obj = doc.createElement("Object");
        root.appendChild(obj);
        obj.setAttribute("Path",tmp.path);
        obj.setAttribute("Material",tmp.material);
        obj.setAttribute("Height",tmp.height);
        obj.setAttribute("Width",tmp.width);

        iter++;
    }

    QFile pfile(projPath);
    if(pfile.open(QIODevice::WriteOnly)){
        QTextStream stream(&pfile);
        stream << doc.toString();
        pfile.close();
        projName=inf.baseName();
    }
}

void MainWindow::saveFile()
{
    QFileDialog dialog (this);
    dialog.setFilter("Text files (*.txt)");
    QString filename;

    if (dialog.exec() == QDialog::Accepted)
    {
        filename = dialog.getSaveFileName();
        QFile f( filename );
        f.open( QIODevice::WriteOnly );
        QTextStream out(&f);
        out << textEdit->toPlainText();
    }
}

void CRunGui::saveAggrStats()
{
	QFileDialog saveAggrDlg;
	saveAggrDlg.setFilter("Text files (*.txt)");
	saveAggrDlg.setFilter("All files (*.*)");
	ActualFN = saveAggrDlg.getSaveFileName(this);
	if (ActualFN.isEmpty())return;
	ActualFN=ActualFN.left(ActualFN.lastIndexOf("."))+".txt";
	
	Env.CountStatistics();
    if (Env.Statist.SaveActAgrStatist(ActualFN.toAscii().data(),Env.Time))
		statusBar()->showMessage(tr("Aggregated statistics saved."));
	else
		statusBar()->showMessage(tr("Aggregated statistics were not saved."));
}

void QtHistoTfuncPixmap::save(void)
{
	printf("QtHistoTfuncPixmap save()\n");
	int i;
	
	QFileDialog* fd = new QFileDialog(this);
	QString fn = fd->getSaveFileName(currentworkingdir, "*.tf2", this );

	if(fn.isEmpty()) return;

	//check the user entered the extension, otherwise add it to the filename
	if(fn[int(fn.length()-4)]!='.') fn += ".tfn";

	if (fn.isEmpty()) return;

	ofstream fout;												
	fout.open(fn.latin1());

	fout<<"// Transfer Function File"<<endl<<endl;
	fout<<"//=========================================================="<<endl;

	fout<<"// Threshold levels:"<<endl;
	fout<<"// min, max"<<endl;
	fout<<"// int, int"<<endl;
	fout<<"//=========================================================="<<endl;
	fout<<"THRESHOLD_LEVELS"<<endl;
	fout<<minthr<<"	"<<maxthr<<endl;
	fout<<"// Trasnfer Functions"<<endl;
	fout<<"// size, cp.x, cp.y, cp.z ....."<<endl;
	fout<<"// int, float, float, float ...."<<endl;
	fout<<"//=========================================================="<<endl;

	fout<<"TF_CONTROL_POINTS"<<endl;
	fout<<funceditor.bs.control_points.size()<<endl;
	for(i=0; i<funceditor.bs.control_points.size(); i++)
	{
		fout<<funceditor.bs.control_points[i].x<<"	"<<funceditor.bs.control_points[i].y<<"	"<<funceditor.bs.control_points[i].z<<endl;
	}
	fout<<endl;
	
	fout.close();

	delete fd;
}

//////////////////////////////////////////////////////////////////////////////////
// This funciton is called when a puzzle needs to be saved to a text file.
//////////////////////////////////////////////////////////////////////////////////
void MainController::onSavePuzzle(){

    if(test) testfile << "MC22 ####################### MainController onSavePuzzle #######################\n";

    QString filePath;
    QFileDialog* fileDialog = new QFileDialog();
    filePath = fileDialog->getSaveFileName(&view, "Save file", "", "*.*");

    if(filePath != "")
    {
        if(test) testfile << "MC23 FilePath is not empty\n";
        puzzleSerializer.serialize(puzzle, filePath);
    }
    else{
        if(test) testfile << "MC24 Filepath was empty\n";
        //Popup error message...
        //TODO
    }
}

void MainWindow::on_saveAsProjectAction_triggered()
{
	QFileDialog * fileDialog = new QFileDialog();
	fileDialog->setAcceptMode( QFileDialog::AcceptSave );
	QString fileName = fileDialog->getSaveFileName( this, tr( "Save as a project" ), QString( boost::filesystem::initial_path().string().c_str() ));
        
        std::vector<std::string> strs;
        const std::string st = fileName.toStdString();
        boost::split(strs, st, boost::is_any_of("/"));
        std::string nameFile = strs.back();
        std::string nameFolder = "";
        
        for(std::vector<std::string>::iterator it = strs.begin() ; it < strs.end()-1 ; ++it)
            nameFolder +=  "/" + (*it) ;
                
        project().setProjectFolder(nameFolder);
        project().setProjectFile(nameFile);
        on_saveProjectAction_triggered();
}

/*!
 \brief 新建工程目录

 \fn CMainWindow::on_actionNew_triggered
*/
void CMainWindow::on_actionNew_triggered()
{
    QFileDialog fileDialog;
    QString strProFilename = fileDialog.getSaveFileName(this,
               tr("Save file"),
            QStandardPaths::writableLocation(QStandardPaths::DesktopLocation), tr(""),0,QFileDialog::ShowDirsOnly);
    if (strProFilename.isEmpty())
    {
        return;
    }else
    {
        qDebug()<<strProFilename;
        QDir dir(strProFilename);
        dir.mkdir(strProFilename);
        m_strProjectPath = strProFilename;
        emit signal_OpenProject(m_strProjectPath);
        this->setWindowTitle(m_strProjectPath);
    }
}

void articleDialog::onSave()
{
    QFileDialog fileDlg;
    QString filename  = fileDlg.getSaveFileName();

    if (!filename.isNull()) {
        QFile f(filename);
        if ((f.open(QIODevice::WriteOnly))) {
            f.write(strArticle.toLocal8Bit());
            f.close();
        } else {
            QMessageBox mb("Access file error:",
                           filename,
                           QMessageBox::Warning,
                           0, 0,
                           0, this, 0);
            mb.exec();
        }
    }
}