[Qt-interest] QColorDialog position

[Constantin Makshin]

QColorDialog::getColor() is a static function, so your call to center_widget() has no effect.

You should try to create color dialog with parent set to your QDialog object, i.e. do something like this:

void my_class_t::get_foreground()
{
    QColor color = QColorDialog::getColor(clr_fgc, this);

    // process color
}

On Friday 18 June 2010 07:15:24 Paul England wrote:
> I've got a QColorDialog that I'm using.  It is brought up from a
> QLineEdit which is in a QLayout, which is inside a QDialog.  The idea is
> for the QColorDialog to come up in the vicinity of the parent QDialog
> which it does on my machine (by default).  However, on another machine,
> it does not.  That machine has 6 monitors, so it's quite the pain to
> find it.
> 
> I have a function below to center the geometry, but it doesn't seem to
> work.  I'm assuming that getColor() has it's own verison of show() or
> exec().  I tried doing show() explicitely and got it to appear
> elsewhere, but then to actually get the color I would need to connect()
> to it's slots and/or reimplement something.  That would actually be
> quite a bit of work at this stage, though.
> 
> Any ideas?
> 
> void center_widget( QWidget* widget, const QPoint& center )
> {
>     QRect geo    = widget->geometry();
>     geo.moveCenter( center );
>     widget->setGeometry( geo );
> }
> 
> void my_class_t::get_foreground()
> {
>     QColorDialog dialog;
>     center_widget( &dialog, this->geometry().center() );
>     QColor color   = dialog.getColor( clr_fgc );
> 
>     // process color
> }
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