[Qt-interest] How can I set text with icons in a QGroupBox?

[Malyushytsky, Alex]

>> Do you know where I can find example code showing me how to do that?

Personally I like use QT own code if I need to learn something related in QT.

QT calls paint.drawComplexControl in the paintEvent.

drawComplexControl depends on the QStyle,
so you might want to look at the specific style drawComplexControl.

For example for common style qcommonstyle.cpp search for "drawComplexControl", then for  "case CC_GroupBox:"
It will show you how to draw QCombobox.
Drawing icon is not that much different from drawing checkbox, which  code below already does.
Just do additional adjustments to count your icon, similar to the adjustments for checkbox:

#ifndef QT_NO_GROUPBOX
    case CC_GroupBox:
        if (const QStyleOptionGroupBox *groupBox = qstyleoption_cast<const QStyleOptionGroupBox *>(opt)) {
            // Draw frame
            QRect textRect = subControlRect(CC_GroupBox, opt, SC_GroupBoxLabel, widget);
            QRect checkBoxRect = subControlRect(CC_GroupBox, opt, SC_GroupBoxCheckBox, widget);
            if (groupBox->subControls & QStyle::SC_GroupBoxFrame) {
                QStyleOptionFrameV2 frame;
                frame.QStyleOption::operator=(*groupBox);
                frame.features = groupBox->features;
                frame.lineWidth = groupBox->lineWidth;
                frame.midLineWidth = groupBox->midLineWidth;
                frame.rect = subControlRect(CC_GroupBox, opt, SC_GroupBoxFrame, widget);
                p->save();
                QRegion region(groupBox->rect);
                if (!groupBox->text.isEmpty()) {
                    bool ltr = groupBox->direction == Qt::LeftToRight;
                    QRect finalRect;
                    if (groupBox->subControls & QStyle::SC_GroupBoxCheckBox) {
                        finalRect = checkBoxRect.united(textRect);
                        finalRect.adjust(ltr ? -4 : 0, 0, ltr ? 0 : 4, 0);
                    } else {
                        finalRect = textRect;
                    }
                    region -= finalRect;
                }
                p->setClipRegion(region);
                drawPrimitive(PE_FrameGroupBox, &frame, p, widget);
                p->restore();
            }

            // Draw title
            if ((groupBox->subControls & QStyle::SC_GroupBoxLabel) && !groupBox->text.isEmpty()) {
                QColor textColor = groupBox->textColor;
                if (textColor.isValid())
                    p->setPen(textColor);
                int alignment = int(groupBox->textAlignment);
                if (!styleHint(QStyle::SH_UnderlineShortcut, opt, widget))
                    alignment |= Qt::TextHideMnemonic;

                drawItemText(p, textRect,  Qt::TextShowMnemonic | Qt::AlignHCenter | alignment,
                             groupBox->palette, groupBox->state & State_Enabled, groupBox->text,
                             textColor.isValid() ? QPalette::NoRole : QPalette::WindowText);

                if (groupBox->state & State_HasFocus) {
                    QStyleOptionFocusRect fropt;
                    fropt.QStyleOption::operator=(*groupBox);
                    fropt.rect = textRect;
                    drawPrimitive(PE_FrameFocusRect, &fropt, p, widget);
                }
            }

            // Draw checkbox
            if (groupBox->subControls & SC_GroupBoxCheckBox) {
                QStyleOptionButton box;
                box.QStyleOption::operator=(*groupBox);
                box.rect = checkBoxRect;
                drawPrimitive(PE_IndicatorCheckBox, &box, p, widget);
            }
        }
        break;
#endif // QT_NO_GROUPBOX




-----Original Message-----
From: qt-interest-bounces at trolltech.com [mailto:qt-interest-bounces at trolltech.com] On Behalf Of Pedro Santos
Sent: Thursday, November 05, 2009 2:14 AM
To: qt-interest at trolltech.com
Subject: Re: [Qt-interest] How can I set text with icons in a QGroupBox?

Am 05.11.2009 03:49, schrieb Malyushytsky, Alex:

> Then override    virtual void paintEvent(QPaintEvent *);
> And draw QIcon the way you like.
> It might be not that easy to define suitable rules though.
> Remember that QGroupBox might display checkbox.

Do you know where I can find example code showing me how to do that?

Regards
Pedro Santos
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