QStatusBar - replacing widgets from bar
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Hi,
I have status bar where I want to have three fields to placing there widgets.
To have there that fields I can do that:@
QLabel labelOne("");
QLabel labelTwo("");
QLabel labelThree("");statusBar->insertWidget(0, labelOne, 1); //QStatusBar* statusBar;
statusBar->insertWidget(1, labelTwo, 1);
statusBar->insertWidget(2, labelThree, 1);
@I want to have function that replace one of the labels with other widget.
Is there any possibility to do this without using pointers to that labels.
I know that I can do this in that way:@
void setWidgetToBar(QWidget* widget, int index)
{
switch(index)
{
case 0:
statusBar->removeWidget(labelOne);
break;
case 1:
statusBar->removeWidget(labelTwo);
break;
case 2:
statusBar->removeWidget(labelThree);
break;
deafult:
break;
}
ui.statusBar->insertWidget(index, widget, 1);
}
@But problem is that I don't have only one status bar. Having pointers to all of these labels from all status bars seems to be not good idea. Unless I will create a list of that labels. Is it a good idea or maybe there is any other way to do this?
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well, maybe you could
@
statusBar->removeWidget(static_cast<QWidget *>(statusBar->children()[0]));
@
That is not pretty and would hide any widget at index zero, regardless if it was the label or not.I have not testet it. just from looking at the source.
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Hi,
If you have several similar status bars you should rather create a subclass where you handle this. And currently yes, there's not simple way to access a widget from the status bar itself.
However, never use a static_cast with QObject derived class, use qobject_cast and always verify that the pointer returned is not null.
