adding lettering within a qwtdial (i.e. "rpm x1000")

[xicer]

I'm mostly new at this but I'm attempting to build a virtual car dashboard. My main problem has arisen in trying to put text within a dial. I'm using the qwt designer plugins but I need to further style the dials from the code. Copying from the qwtdials speedometer example I attempted to add "rpm x1000" with this code:

#include <QtGui>
#include <qpainter.h>
#include <qwt_dial_needle.h>
#include "dashcar.h"
#include "ui_dashcar.h"

#include <QtGui>
#include <qpainter.h>
#include <qwt_dial_needle.h>
#include "dashcar.h"
#include "ui_dashcar.h"

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ui->Main_Dial_Rpm->drawScaleContents(QPainter *painter,
        const QPoint &center, int radius) const
    {
        QRect rect(0, 0, 2 * radius, 2 * radius - 10);
        rect.moveCenter(center);
 
        const QColor color = palette().color(QPalette::Text);
        painter->setPen(color);
 
        const int flags = Qt::AlignBottom | Qt::AlignHCenter;
        painter->drawText(rect, flags, "rpm x1000");
    }

ui->Main_Dial_Rpm->drawScaleContents(QPainter *painter,
        const QPoint &center, int radius) const
    {
        QRect rect(0, 0, 2 * radius, 2 * radius - 10);
        rect.moveCenter(center);

        const QColor color = palette().color(QPalette::Text);
        painter->setPen(color);

        const int flags = Qt::AlignBottom | Qt::AlignHCenter;
        painter->drawText(rect, flags, "rpm x1000");
    }

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however I get the following errors:

dashcar.cpp: In constructor ‘DashCar::DashCar(QWidget*)’:
dashcar.cpp:33: error: expected primary-expression before ‘*’ token
dashcar.cpp:33: error: ‘painter’ was not declared in this scope
dashcar.cpp:34: error: expected primary-expression before ‘const’
dashcar.cpp:34: error: expected primary-expression before ‘int’
dashcar.cpp:34: error: expected ‘;’ before ‘const’
make: *** [dashcar.o] Error 1

dashcar.cpp: In constructor ‘DashCar::DashCar(QWidget*)’:
dashcar.cpp:33: error: expected primary-expression before ‘*’ token
dashcar.cpp:33: error: ‘painter’ was not declared in this scope
dashcar.cpp:34: error: expected primary-expression before ‘const’
dashcar.cpp:34: error: expected primary-expression before ‘int’
dashcar.cpp:34: error: expected ‘;’ before ‘const’
make: *** [dashcar.o] Error 1

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Also, if possible I would like to know how to turn the dial face different colors to serve as a shift light, and I guess from what I read it involves a similar process.

Any ideas?

[xicer]

Basically, is it possible to draw stuff onto a qwtdial that was added via designer or do I have to make a custom class.

[Mesozoic]

I ended up building a custom class, but I still use the designer to format and place the dial inside a frame. During initialization, I close the dial, delete it, and replace it with my custom implementation. Likely not the best method, but it certainly works.