How to use Checkboxes in QMenu?

[anda_skoa]

Any reason you are not using a checkable action?

Cheers,
_

[Stravinsky]

I already implement menu. I have problem with staying on top of the menu when I want to check more than one checkable action. When i use QCheckBox i dont have this problem. Do you know how to select multiple actions without hiding the menu?.

[Stravinsky]

I fixed this problem.

I used 2 signal&slots. One for non checkable action and second for checkable. The second one have menu->show() in slot to keep menu on top.

void QSpreadsheetHeaderView::mousePressEvent ( QMouseEvent * event )
{
    QHeaderView::mousePressEvent(event);
 
    logicalIndex = logicalIndexAt(event->pos());
 
    if (buttonMenuRect(logicalIndex).contains(event->pos())) {
 
        if(set_checkbox==false)
        {
            menu = new QMenu(this);
 
            sortAZ = menu->addAction("Sortuj A->Z");
            sortZA = menu->addAction("Sortuj Z->A");
            clear_sort = menu->addAction("Anuluj");
            menu->addSeparator();
            hideCol = menu->addAction("Ukryj kolumnÄ™");
            clear_hideCol = menu->addAction("Odkryj wszystkie");
 
                   for(int i = 0; i <model()->columnCount(); i++)
                   {
                       actions[i] = new QAction(menu);
                       actions[i] = menu->addAction(model()->headerData(i, Qt::Horizontal).toString());
                       actions[i]->setCheckable(true);
                       connect(actions[i],SIGNAL(triggered(bool)),this,SLOT(hide_selected_column(bool)));
                       if(i<columns_min)actions[i]->setChecked(true);
 
                   }
 
            set_checkbox=true;
            connect(menu, SIGNAL(triggered(QAction*)), this, SLOT(action(QAction*)));
        }
 
        // Disable hide column if only one column remains. Otherwise
        // the gui is no more available to show them back.
        hideCol->setEnabled(hiddenSectionCount() < count() - 1);
        if(hideCol->isEnabled()==false)
        {
            for(int i = 0; i <model()->columnCount(); i++)
            {
                if(actions[i]->isChecked()==true)
                {
                    previous_sender=actions[i];
                    freeze=true;
                    actions[i]->setEnabled(false);
                    break;
                }
            }
        }
 
        menu->popup(mapToGlobal(event->pos()));
    }
 
        // Catch previous arrow mouse click.
    else if (prevRect(logicalIndex).contains(event->pos()) && set_checkbox==true)  {
            showSection(logicalIndex - 1);
            actions[logicalIndex - 1]->setChecked(true);
            updateSection(logicalIndex - 2);
            if(freeze==true)      { previous_sender->setEnabled(true); freeze=false;}
        }
 
        // Catch next arrow mouse click.
    else if (nextRect(logicalIndex).contains(event->pos()) && set_checkbox==true) {
            showSection(logicalIndex + 1);
            actions[logicalIndex + 1]->setChecked(true);
            updateSection(logicalIndex + 2);
            if(freeze==true)     { previous_sender->setEnabled(true); freeze=false; }
        }
 
 
}

void QSpreadsheetHeaderView::mousePressEvent ( QMouseEvent * event )
{
    QHeaderView::mousePressEvent(event);

    logicalIndex = logicalIndexAt(event->pos());

    if (buttonMenuRect(logicalIndex).contains(event->pos())) {

        if(set_checkbox==false)
        {
            menu = new QMenu(this);

            sortAZ = menu->addAction("Sortuj A->Z");
            sortZA = menu->addAction("Sortuj Z->A");
            clear_sort = menu->addAction("Anuluj");
            menu->addSeparator();
            hideCol = menu->addAction("Ukryj kolumnÄ™");
            clear_hideCol = menu->addAction("Odkryj wszystkie");

                   for(int i = 0; i <model()->columnCount(); i++)
                   {
                       actions[i] = new QAction(menu);
                       actions[i] = menu->addAction(model()->headerData(i, Qt::Horizontal).toString());
                       actions[i]->setCheckable(true);
                       connect(actions[i],SIGNAL(triggered(bool)),this,SLOT(hide_selected_column(bool)));
                       if(i<columns_min)actions[i]->setChecked(true);

                   }

            set_checkbox=true;
            connect(menu, SIGNAL(triggered(QAction*)), this, SLOT(action(QAction*)));
        }

        // Disable hide column if only one column remains. Otherwise
        // the gui is no more available to show them back.
        hideCol->setEnabled(hiddenSectionCount() < count() - 1);
        if(hideCol->isEnabled()==false)
        {
            for(int i = 0; i <model()->columnCount(); i++)
            {
                if(actions[i]->isChecked()==true)
                {
                    previous_sender=actions[i];
                    freeze=true;
                    actions[i]->setEnabled(false);
                    break;
                }
            }
        }

        menu->popup(mapToGlobal(event->pos()));
    }

        // Catch previous arrow mouse click.
    else if (prevRect(logicalIndex).contains(event->pos()) && set_checkbox==true)  {
            showSection(logicalIndex - 1);
            actions[logicalIndex - 1]->setChecked(true);
            updateSection(logicalIndex - 2);
            if(freeze==true)      { previous_sender->setEnabled(true); freeze=false;}
        }

        // Catch next arrow mouse click.
    else if (nextRect(logicalIndex).contains(event->pos()) && set_checkbox==true) {
            showSection(logicalIndex + 1);
            actions[logicalIndex + 1]->setChecked(true);
            updateSection(logicalIndex + 2);
            if(freeze==true)     { previous_sender->setEnabled(true); freeze=false; }
        }


}

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Slot for non checkable:

void QSpreadsheetHeaderView::action(QAction *action) {
 
 
    if (action == hideCol)
    {
        hideSection(logicalIndex);
        actions[logicalIndex]->setChecked(false);
        updateSection(logicalIndex-1);
    }
 
    if (action == sortAZ)
        model()->sort(logicalIndex, Qt::AscendingOrder);
 
    if (action == sortZA)
        model()->sort(logicalIndex, Qt::DescendingOrder);
 
    if (action == clear_hideCol){
        for(int i = 0; i <model()->columnCount(); i++)
        {
            showSection(i);
            actions[i]->setChecked(true);
            actions[i]->setEnabled(true);
            if(freeze==true)      { previous_sender->setEnabled(true); freeze=false;}
        }
    }
 
    if (action == clear_sort){
 
    }
 
}

void QSpreadsheetHeaderView::action(QAction *action) {


    if (action == hideCol)
    {
        hideSection(logicalIndex);
        actions[logicalIndex]->setChecked(false);
        updateSection(logicalIndex-1);
    }

    if (action == sortAZ)
        model()->sort(logicalIndex, Qt::AscendingOrder);

    if (action == sortZA)
        model()->sort(logicalIndex, Qt::DescendingOrder);

    if (action == clear_hideCol){
        for(int i = 0; i <model()->columnCount(); i++)
        {
            showSection(i);
            actions[i]->setChecked(true);
            actions[i]->setEnabled(true);
            if(freeze==true)      { previous_sender->setEnabled(true); freeze=false;}
        }
    }

    if (action == clear_sort){

    }

}

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and checkable:

void QSpreadsheetHeaderView::hide_selected_column(bool checked)
{
    menu->show();
    QAction * senderCHECK = qobject_cast<QAction *>(this->sender());
 
    for(int i=0;i<23;i++)
            {
                if(senderCHECK==actions[i])
                {
                    if(checked==false && freeze==false)
                    {
                        hideSection(i);
                        actions[i]->setChecked(false);
                    }
 
                    else if(checked==true && freeze==true)
                    {
                        hideCol->setEnabled(true);
                        previous_sender->setEnabled(true);
                        showSection(i);
                        actions[i]->setChecked(true);
                        freeze=false;
 
                    }
 
                    else if(checked==true)
                    {
                        showSection(i);
                        actions[i]->setChecked(true);
                    }
                }
            }
 
    if(count()-hiddenSectionCount()==1)
    {
        freeze=true;
        hideCol->setEnabled(false);
        for(int i=0;i<23;i++)
        {
            if(actions[i]->isChecked()==true)
            {
                previous_sender=actions[i];
                actions[i]->setEnabled(false);
                break;
            }
        }
    }
}

void QSpreadsheetHeaderView::hide_selected_column(bool checked)
{
    menu->show();
    QAction * senderCHECK = qobject_cast<QAction *>(this->sender());

    for(int i=0;i<23;i++)
            {
                if(senderCHECK==actions[i])
                {
                    if(checked==false && freeze==false)
                    {
                        hideSection(i);
                        actions[i]->setChecked(false);
                    }

                    else if(checked==true && freeze==true)
                    {
                        hideCol->setEnabled(true);
                        previous_sender->setEnabled(true);
                        showSection(i);
                        actions[i]->setChecked(true);
                        freeze=false;

                    }

                    else if(checked==true)
                    {
                        showSection(i);
                        actions[i]->setChecked(true);
                    }
                }
            }

    if(count()-hiddenSectionCount()==1)
    {
        freeze=true;
        hideCol->setEnabled(false);
        for(int i=0;i<23;i++)
        {
            if(actions[i]->isChecked()==true)
            {
                previous_sender=actions[i];
                actions[i]->setEnabled(false);
                break;
            }
        }
    }
}

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