C++ (Cpp) QWidgetList::erase Examples

Example #1

File: actionrepository.cpp Project: Fale/qtmoko

// Find the associated menus and toolbars, ignore toolbuttons
QWidgetList ActionModel::associatedWidgets(const QAction *action)
{
    QWidgetList rc = action->associatedWidgets();
    for (QWidgetList::iterator it = rc.begin(); it != rc.end(); )
        if (qobject_cast<const QMenu *>(*it) || qobject_cast<const QToolBar *>(*it)) {
            ++it;
        } else {
            it = rc.erase(it);
        }
    return rc;
}

Example #2

File: qt_widget_utils.cpp Project: catedrasaes-umu/sdaver_qtlua_v2

///
///returns a widget
///it supports repeated widget names
///
QWidget* getAbsoluteWidget(QStringList path)
{
    _log::misc << "(QWidgetUtils::getAbsoluteWidget)" << std::endl;
    ///update the view
    QWidgetUtils::updateAppView();

    ///get all the widgets
    QWidgetList qwl = qApp->allWidgets();

    ///get the widget name
    assert ( path.size() );
    QString name = path.back();
    if ( name == "" )
    {
        std::cout << "(QWidgetUtils::getAbsoluteWidget) ERROR. The name of the widget is empty." << std::endl;
        return NULL;
    }
    path.pop_back();

    //_log::misc << "(QWidgetUtils::getAbsoluteWidget) Name = " << name.toStdString() << std::endl;


    ///get all widgets with this name
    QWidgetList qws;
    foreach ( QWidget *w, qwl )
    {
        if ( getWidgetName ( w ) == name )
        {
            qws.push_back ( w );
        }
    }
    //_log::misc << "(QWidgetUtils::getAbsoluteWidget) OK" << std::endl;
    //if there are no selected widgets...
    if ( qws.size() == 0 )
    {
        _log::misc << "(QWidgetUtils::getAbsoluteWidget) ERROR. There are no selected widgets." << std::endl;
        return NULL;
    }
    //_log::misc << "(QWidgetUtils::getAbsoluteWidget) OK" << std::endl;

    ///get the concrete widget we are looking for...
    int level = 1;
    bool onTopLevel = false;
    int onTopLevelCount = 0;
    QWidgetList::iterator qit;

    /*for (qit = qws.begin(); qit != qws.end(); qit++)
      {
      QWidget* w = static_cast<QWidget*> ( *qit );
      _log::misc << getWidgetPath(w).toStdString() << std::endl;
      }*/

    // while more than 1 widget remaining
    // or every widget has been analyzed...
    while ( qws.size() > 1 && onTopLevelCount < qws.size() )
    {

        //_log::misc << "(QWidgetUtils::getAbsoluteWidget) OK -> " << qws.size() << std::endl;
        //for the remaining widgets...
        qit = qws.begin();
        while ( qit != qws.end() )
        {
            //get the parent widget
            QWidget* w = static_cast<QWidget*> ( *qit );
            QWidget* wParent = w;
            assert ( wParent );
            onTopLevel = false;

            for ( int i = 0; i < level; i++ )
            {
                //if we are in a top level widget (with no parent node)
                //we have to avoid this widget
                if ( wParent->parent() == NULL )
                {
                    onTopLevel = true;
                    onTopLevelCount++;
                    break;
                }
                //if not, we go on looking for up
                else
                {
                    wParent = static_cast<QWidget*> ( wParent->parent() );
                }
            }

            //if not at top level...
            if ( !onTopLevel )
            {
                //we chech the parent name and delete the
                //widgets whose parent name does not mach
                if ( getWidgetName ( wParent ) != path.back() )
                {
                    qit = qws.erase ( qit );
                }
                else
                {
                    qit++;
                }
            }
            else
            {
                qit++;
            }
        }

        //update the values
        level++;
        path.pop_back();

        //stop condition (end of the search path)
        if ( path.size() == 0 ) break;
    }

    //_log::misc << "(QWidgetUtils::getAbsoluteWidget) OK" << std::endl;

    //there has to be only one element at the list
    if ( qws.size() != 1 )
    {
        std::cout <<
            "(QWidgetUtils::getAbsoluteWidget) ERROR. None or more than one widget selected. Result = "
                  << qws.size() << std::endl;
        return NULL;
    }

    //if not, return the widget
    return qws.first();
}