c++ - QDial change position indicator text -


i use qdial control input time values in sec. how change automatically added text shows in middle of these dials?

enter image description here

edit: come qtcurve style.

if there no code in program explicitly display integral value (in signal/slot), may current qt style it. see following examples of qt styles see display of integer not part of qdial display:

http://qt-project.org/doc/qt-4.8/gallery-plastique.html

http://qt-project.org/doc/qt-4.8/gallery-cde.html

http://qt-project.org/doc/qt-4.8/gallery-gtk.html

http://qt-project.org/doc/qt-4.8/gallery-cleanlooks.html

http://qt-project.org/doc/qt-4.8/gallery-windowsvista.html

http://qt-project.org/doc/qt-4.8/gallery-macintosh.html

see: http://qt-project.org/doc/qt-4.8/qstyle.html more info on styles.

you can in program code following code:

 qapplication::setstyle(...);

you check following:

  • qt_style_override environment variable
  • -style= argument passed program

if still don't find how style set, may default style platform.

what following says ?

qstyle *currentstyle = qapplication::style(); qdebug() << currentstyle; qdebug() << currentstyle->objectname(); qdebug() << currentstyle->metaobject()->classname();

edit: see identified style qtcurve.

source there: http://kde-look.org/content/download.php?content=40492&id=1&tan=23640920

and can see style responsible displaying value:

file: style/qtcurve.cpp, line: 7980

                // draw value... #ifdef dial_dot_on_ring                 drawitemtextwithrole(painter, outer.adjusted(sliderwidth, sliderwidth, -sliderwidth, -sliderwidth),                                      qt::aligncenter, palette, state&state_enabled,                                      qstring::number(slider->slidervalue), qpalette::buttontext); #else                 int adjust=2*sliderwidth;                 drawitemtextwithrole(painter, outer.adjusted(adjust, adjust, -adjust, -adjust),                                      qt::aligncenter, palette, state&state_enabled,                                      qstring::number(slider->slidervalue), qpalette::buttontext); #endif

from on, can either:

  • recompile style after disabling faulty code (commenting or using boolean option).
  • ask maintainer provide option disable display of dial's value.

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