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Code: Alles auswählen

#include <QtGui>
#include "widget.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
    return a.exec();
}

Code: Alles auswählen

#ifndef WIDGET_H
#define WIDGET_H

#include <QtGui/QWidget>
#include <QSettings>

class QSettings;
class QButtonGroup;
class QVBoxLayout;
class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = 0);
    ~Widget();

private slots:
    void addOwnRadio();
    void removeOwnRadio();

private:
    void addOwn(const QString & text);

private:
    QSettings    * m_settings;
    QButtonGroup * m_bg;
    QVBoxLayout  * m_vlayOWN;

};

#endif // WIDGET_H

Code: Alles auswählen

#include "widget.h"

#include <QApplication>
#include <QtGui>

Widget::Widget(QWidget *parent) :
        QWidget(parent),
        m_settings(new QSettings(QSettings::IniFormat,
                                 QSettings::UserScope,
                                 "QSettingsTest",
                                 "qSettingsTestApp")),
        m_bg(0),
        m_vlayOWN(0)
{
    QVBoxLayout * vlay = new QVBoxLayout(this);
    QVBoxLayout * vlayFIX = new QVBoxLayout;

    m_bg = new QButtonGroup(this);
    for(int i=0; i<5; ++i)
    {
        QRadioButton * but =  new QRadioButton("fixRB "+QString::number(i),this);
        vlayFIX->addWidget(but);
        m_bg->addButton(but);
    }
    m_bg->setExclusive(true);
    m_bg->buttons().first()->setChecked(true);

    QToolButton * tbAdd = new QToolButton(this);
    tbAdd->setText("add RadioButton");
    tbAdd->setObjectName("addRadioButton");
    connect(tbAdd,SIGNAL(clicked()),this,SLOT(addOwnRadio()));

    QToolButton * tbRemove = new QToolButton(this);
    tbRemove->setText("remove RadioButton");
    tbRemove->setObjectName("remRadioButton");
    connect(tbRemove,SIGNAL(clicked()),this,SLOT(removeOwnRadio()));

    m_vlayOWN= new QVBoxLayout;

    while(! m_settings->group().isEmpty()) m_settings->endGroup();
    m_settings->beginGroup("ownRadioButtonNames");
    foreach( QString s, m_settings->allKeys())
    {
        addOwn(s);
    }
    m_settings->endGroup();


    vlayFIX->addLayout(m_vlayOWN);

    vlay->addLayout(vlayFIX);
    vlay->addStretch(1);

    vlay->addWidget(tbAdd);
    vlay->addWidget(tbRemove);
}

Widget::~Widget()
{
}

void Widget::addOwn(const QString & text)
{
    QRadioButton * cb = new QRadioButton(text,this);
    cb->setObjectName("OWN");
    m_vlayOWN->addWidget(cb);
    m_bg->addButton(cb);
}

void Widget::addOwnRadio()
{
    QString title = QInputDialog::getText(this, tr("Input title"),tr("Whats the new options name?"));
    if (title.isNull()) return;

    // disallow double entries
    foreach (QRadioButton * but, findChildren<QRadioButton*>("OWN"))
    {
        if (but->text() == title)
        {
            QMessageBox::information(this,tr("Info"),tr("Already there."));
            return;
        }
    }
    addOwn(title);

    while(! m_settings->group().isEmpty()) m_settings->endGroup();
    m_settings->beginGroup("ownRadioButtonNames");
    m_settings->setValue(title,QVariant());
}

void Widget::removeOwnRadio()
{
    QList<QRadioButton*> owns = findChildren<QRadioButton*>("OWN");
    if (owns.isEmpty())
    {
        QMessageBox::information(this,tr("Info"),tr("Nothing to remove."));
        return;
    }

    QStringList rbListNames;
    rbListNames << "";
    foreach (QRadioButton *rb, owns) rbListNames << rb->text();

    QString title = QInputDialog::getItem(this,tr("Choose title"),tr("Remove which one?"),rbListNames,0,false);

    foreach (QRadioButton *rb, owns)
    {
        if (rb->text() == title)
        {
            rb->close();
            rb->deleteLater();
            break;
        }
    }

    while(! m_settings->group().isEmpty()) m_settings->endGroup();
    m_settings->beginGroup("ownRadioButtonNames");
    m_settings->remove(title);
}