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

void AppImportFile::open()
{
    const QString MetaIOImageFilter("MetaIO Image (*.mhd)"), DICOMImageFilter("DICOM Images (*.dcm)"), AllFilesFilter("All Files (*)");
    QStringList imagesFilter;
    imagesFilter << MetaIOImageFilter << DICOMImageFilter << AllFilesFilter;

    QFileDialog *openDialog = new QFileDialog(0);
    openDialog->setWindowTitle(tr("Select files to open..."));
    openDialog->setDirectory(m_workingDirectory);
    openDialog->setNameFilters(imagesFilter);
    openDialog->selectNameFilter (m_lastExtension);
    openDialog->setFileMode(QFileDialog::ExistingFiles);
    openDialog->setAcceptMode(QFileDialog::AcceptOpen);

    if (openDialog->exec() == QDialog::Accepted)
    {
        QStringList fileNames = openDialog->selectedFiles();

        emit selectedFiles(fileNames);

        m_workingDirectory = QFileInfo(fileNames.first()).dir().path();
        m_lastExtension = openDialog->selectedNameFilter();

        writeSettings();
    }
    delete openDialog;
}

void MainWindow::on_actionAdd_File_triggered()
{
	this->settings->beginGroup(QStringLiteral("paths"));

	QFileDialog *dialog = new QFileDialog(this);
	DialogMaster::masterDialog(dialog);
	dialog->setWindowTitle(tr("Open Icon Archive"));
	dialog->setAcceptMode(QFileDialog::AcceptOpen);
	dialog->setFileMode(QFileDialog::ExistingFiles);
	dialog->setDirectory(this->settings->value(QStringLiteral("openPath")).toString());

	QStringList mTypes = byteToStringList(QImageReader::supportedMimeTypes());
	mTypes.append(QStringLiteral("application/octet-stream"));
	dialog->setMimeTypeFilters(mTypes);

	QString selFilter = this->settings->value(QStringLiteral("openFilter")).toString();
	qDebug() << selFilter;
	if(selFilter.isEmpty()) {
#if defined(Q_OS_WIN)
	dialog->selectMimeTypeFilter(QStringLiteral("image/vnd.microsoft.icon"));
#elif defined(Q_OS_OSX)
	dialog->selectMimeTypeFilter(QStringLiteral("image/x-icns"));
#else
	dialog->selectMimeTypeFilter(QStringLiteral("image/png"));
#endif
	} else
		dialog->selectNameFilter(selFilter);

	this->settings->endGroup();
	dialog->open(this, SLOT(fileSelected(QStringList)));
}

/**
 * Shows a dialog for choosing a file name. Opening the file is up to
 * the caller.
 *
 * @return File name with path and extension to determine the file type
 *         or an empty string if the dialog was cancelled.
 */
QString QG_FileDialog::getOpenFileName(QWidget* parent, RS2::FormatType* type) {
    RS_DEBUG->print("QG_FileDialog::getOpenFileName");

    // read default settings:
    RS_SETTINGS->beginGroup("/Paths");
    QString defDir = RS_SETTINGS->readEntry("/Open",
                                              RS_SYSTEM->getHomeDir());
    //QString defFilter = RS_SETTINGS->readEntry("/OpenFilter",
    //                      "Drawing Exchange (*.dxf *.DXF)");
    QString defFilter = "Drawing Exchange (*.dxf)";
    RS_SETTINGS->endGroup();

    RS_DEBUG->print("defDir: %s", defDir.toLatin1().data());
    RS_DEBUG->print("defFilter: %s", defFilter.toLatin1().data());

    QString fDxfOld(QObject::tr("Old Drawing Exchange %1").arg("(*.dxf *.DXF)"));
    QString fDxfrw(QObject::tr("Drawing Exchange %1").arg("(*.dxf)"));

    QString fDxf1(QObject::tr("QCad 1.x file %1").arg("(*.dxf *.DXF)"));
    QString fLff(QObject::tr("LFF Font %1").arg("(*.lff)"));
    QString fCxf(QObject::tr("Font %1").arg("(*.cxf)"));
    QString fJww(QObject::tr("Jww %1").arg("(*.jww)"));

    RS_DEBUG->print("fDxfrw: %s", fDxfrw.toLatin1().data());
    RS_DEBUG->print("fDxf1: %s", fDxf1.toLatin1().data());
    RS_DEBUG->print("fCxf: %s", fCxf.toLatin1().data());
    RS_DEBUG->print("fJww: %s", fJww.toLatin1().data());

    QString fn = "";
    bool cancel = false;

    QFileDialog* fileDlg = new QFileDialog(parent, "File Dialog");

    QStringList filters;
    filters.append(fDxfrw);
    filters.append(fDxf1);
    filters.append(fLff);
    filters.append(fCxf);
    filters.append(fJww);

    fileDlg->setNameFilters(filters);
    fileDlg->setFileMode(QFileDialog::ExistingFile);
    fileDlg->setWindowTitle(QObject::tr("Open Drawing"));
    fileDlg->setDirectory(defDir);
    fileDlg->selectNameFilter(defFilter);

    /** preview RVT PORT preview is currently not supported by QT4
    RS_Graphic* gr = new RS_Graphic;
    QG_GraphicView* prev = new QG_GraphicView(parent);
    prev->setContainer(gr);
    prev->setBorders(1, 1, 1, 1);
    fileDlg->setContentsPreviewEnabled(true);
    fileDlg->setContentsPreview(prev, prev);
    */

    if (fileDlg->exec()==QDialog::Accepted) {
        QStringList fl = fileDlg->selectedFiles();
        if (!fl.isEmpty())
            fn = fl[0];
        fn = QDir::toNativeSeparators( QFileInfo(fn).absoluteFilePath() );
        if (type!=NULL) {
            if (fileDlg->selectedNameFilter()==fDxf1) {
                *type = RS2::FormatDXF1;
            } else if (fileDlg->selectedNameFilter()==fDxfrw) {
                *type = RS2::FormatDXFRW;
            } else if (fileDlg->selectedNameFilter()==fCxf) {
                *type = RS2::FormatCXF;
            } else if (fileDlg->selectedNameFilter()==fJww) {
                *type = RS2::FormatJWW;
            }
        }
        cancel = false;
    } else {
        cancel = true;
    }

    // store new default settings:
    if (!cancel) {
        RS_SETTINGS->beginGroup("/Paths");
        RS_SETTINGS->writeEntry("/Open", QFileInfo(fn).absolutePath());
        RS_SETTINGS->writeEntry("/OpenFilter", fileDlg->selectedFilter());
        RS_SETTINGS->endGroup();
    }

    RS_DEBUG->print("QG_FileDialog::getOpenFileName: fileName: %s", fn.toLatin1().data());
    RS_DEBUG->print("QG_FileDialog::getOpenFileName: OK");

    // RVT PORT delete prev;
    // RVT PORT delete gr;
    delete fileDlg;

    return fn;
}

/**
 * Shows a dialog for choosing a file name. Saving the file is up to
 * the caller.
 *
 * @param type Will contain the file type that was chosen by the user.
 *             Can be NULL to be ignored.
 *
 * @return File name with path and extension to determine the file type
 *         or an empty string if the dialog was cancelled.
 */
QString QG_FileDialog::getSaveFileName(QWidget* parent, RS2::FormatType* type) {
    // read default settings:
    RS_SETTINGS->beginGroup("/Paths");
    QString defDir = RS_SETTINGS->readEntry("/Save",
                                              RS_SYSTEM->getHomeDir());
    QString defFilter = RS_SETTINGS->readEntry("/SaveFilter",
                                                 "Drawing Exchange DXF 2007 (*.dxf)");
    //QString defFilter = "Drawing Exchange (*.dxf)";
    RS_SETTINGS->endGroup();

    // prepare file save as dialog:
    QFileDialog* fileDlg = new QFileDialog(parent,"Save as");
    QStringList filters;
    bool done = false;
    bool cancel = false;
    QString fn = "";

    filters.append("Drawing Exchange DXF 2007 (*.dxf)");
    filters.append("Drawing Exchange DXF 2004 (*.dxf)");
    filters.append("Drawing Exchange DXF 2000 (*.dxf)");
    filters.append("Drawing Exchange DXF R14 (*.dxf)");
    filters.append("Drawing Exchange DXF R12 (*.dxf)");
    filters.append("LFF Font (*.lff)");
    filters.append("Font (*.cxf)");
    filters.append("JWW (*.jww)");


    fileDlg->setNameFilters(filters);
    fileDlg->setFileMode(QFileDialog::AnyFile);
    fileDlg->setWindowTitle(QObject::tr("Save Drawing As"));
    fileDlg->setDirectory(defDir);
    fileDlg->setAcceptMode(QFileDialog::AcceptSave);
	fileDlg->selectNameFilter(defFilter);

    // run dialog:
    do {
        // accepted:
        if (fileDlg->exec()==QDialog::Accepted) {
            QStringList fl = fileDlg->selectedFiles();
            if (!fl.isEmpty())
                fn = fl[0];
            fn = QDir::toNativeSeparators( QFileInfo(fn).absoluteFilePath() );
            cancel = false;

            // append default extension:
            // TODO, since we are starting to suppor tmore extensions, we need to find a better way to add the default
            if (QFileInfo(fn).fileName().indexOf('.')==-1) {

                if (fileDlg->selectedNameFilter()=="LFF Font (*.lff)") {
                    fn+=".lff";
                } else if (fileDlg->selectedNameFilter()=="Font (*.cxf)") {
                        fn+=".cxf";
                } else {
                    fn+=".dxf";
                }
            }

            // set format:
            if (type) {
                if (fileDlg->selectedNameFilter()=="LFF Font (*.lff)") {
                    *type = RS2::FormatLFF;
                } else if (fileDlg->selectedNameFilter()=="Font (*.cxf)") {
                    *type = RS2::FormatCXF;
                } else if (fileDlg->selectedNameFilter()=="Drawing Exchange DXF 2004 (*.dxf)") {
                    *type = RS2::FormatDXFRW2004;
                } else if (fileDlg->selectedNameFilter()=="Drawing Exchange DXF 2000 (*.dxf)") {
                    *type = RS2::FormatDXFRW2000;
                } else if (fileDlg->selectedNameFilter()=="Drawing Exchange DXF R14 (*.dxf)") {
                    *type = RS2::FormatDXFRW14;
                } else if (fileDlg->selectedNameFilter()=="Drawing Exchange DXF R12 (*.dxf)") {
                    *type = RS2::FormatDXFRW12;
                } else if (fileDlg->selectedNameFilter()=="JWW (*.jww)") {
                    *type = RS2::FormatJWW;
                } else {
                    *type = RS2::FormatDXFRW;
                }
            }

#if !defined (_WIN32) && !defined (__APPLE__)
            // overwrite warning:
            if(QFileInfo(fn).exists()) {
                int choice =
                        QMessageBox::warning(parent, QObject::tr("Save Drawing As"),
                                             QObject::tr("%1 already exists.\n"
                                                         "Do you want to replace it?")
                                             .arg(fn),
                                             QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel,QMessageBox::Cancel);

                switch (choice) {
                case QMessageBox::Yes:
//.........这里部分代码省略.........

QString QmitkToFRecorderWidget::getSaveFileName(mitk::ToFImageWriter::ToFImageType& tofImageType,
                                     bool& distanceImageSelected,
                                     bool& amplitudeImageSelected,
                                     bool& intensityImageSelected,
                                     bool& rgbImageSelected,
                                     bool& rawDataSelected,
                                     QWidget *parent,
                                     const QString &caption,
                                     const QString &dir,
                                     const QString &filter,
                                     QString *selectedFilter,
                                     QFileDialog::Options options
                                     )
{
  QString selectedFileName = "";
  QComboBox* combo = new QComboBox;
  combo->addItem("3D");
  combo->addItem("2D + t");

  QHBoxLayout* checkBoxGroup = new QHBoxLayout();

  QCheckBox* distanceImageCheckBox = new QCheckBox;
  distanceImageCheckBox->setText("Distance image");
  distanceImageCheckBox->setChecked(distanceImageSelected);
  QCheckBox* amplitudeImageCheckBox = new QCheckBox;
  amplitudeImageCheckBox->setText("Amplitude image");
  amplitudeImageCheckBox->setChecked(amplitudeImageSelected);
  QCheckBox* intensityImageCheckBox = new QCheckBox;
  intensityImageCheckBox->setText("Intensity image");
  intensityImageCheckBox->setChecked(intensityImageSelected);
  QCheckBox* rgbImageCheckBox = new QCheckBox;
  rgbImageCheckBox->setText("RGB image");
  rgbImageCheckBox->setChecked(rgbImageSelected);
  QCheckBox* rawDataCheckBox = new QCheckBox;
  rawDataCheckBox->setText("Raw data");
  rawDataCheckBox->setChecked(false);
  rawDataCheckBox->setEnabled(false);

  checkBoxGroup->addWidget(distanceImageCheckBox);
  checkBoxGroup->addWidget(amplitudeImageCheckBox);
  checkBoxGroup->addWidget(intensityImageCheckBox);
  checkBoxGroup->addWidget(rgbImageCheckBox);
  checkBoxGroup->addWidget(rawDataCheckBox);

  QFileDialog* fileDialog = new QFileDialog(parent, caption, dir, filter);

  QLayout* layout = fileDialog->layout();
  QGridLayout* gridbox = qobject_cast<QGridLayout*>(layout);

  if (gridbox)
  {
    gridbox->addWidget(new QLabel("ToF-Image type:"));
    gridbox->addWidget(combo);
    int lastRow = gridbox->rowCount();
    gridbox->addLayout(checkBoxGroup, lastRow, 0, 1, -1);
  }

  fileDialog->setLayout(gridbox);
  fileDialog->setAcceptMode(QFileDialog::AcceptSave);

  if (selectedFilter)
  {
    fileDialog->selectNameFilter(*selectedFilter);
  }

  if (fileDialog->exec() == QDialog::Accepted)
  {
    if (selectedFilter)
    {
      *selectedFilter = fileDialog->selectedFilter();
    }

    if (combo->currentIndex() == 0)
    {
      tofImageType = mitk::ToFImageWriter::ToFImageType3D;
    }

    else
    {
      tofImageType = mitk::ToFImageWriter::ToFImageType2DPlusT;
    }

    distanceImageSelected = distanceImageCheckBox->isChecked();
    amplitudeImageSelected = amplitudeImageCheckBox->isChecked();
    intensityImageSelected = intensityImageCheckBox->isChecked();
    rgbImageSelected = rgbImageCheckBox->isChecked();
    rawDataSelected = rawDataCheckBox->isChecked();

    selectedFileName = fileDialog->selectedFiles().value(0);
  }

  delete fileDialog;
  return selectedFileName;
}