[solved]Strange widget positioning within a QToolBar

JulienMaille

I have a problem with adding 3 widgets arranged in a QGridLayout.
It works when I insert this into a QToolbar that I have defined with designer.
I fails when this QToolbar is defined within the code. @QToolBar* uiToolbar = new QToolBar(mainWindow);

QWidget *w = new QWidget;
QGridLayout *gbox = new QGridLayout;

QComboBox* parametersCB = new QComboBox;
QLabel* typeLabel = new QLabel("type");
QLabel* currentLabel = new QLabel(tr("Current parameters:"));

gbox->addWidget(currentLabel,0,0,1,2);
gbox->addWidget(parametersCB,1,0);
gbox->addWidget(typeLabel,1,1);

w->setLayout(gbox);
uiToolbar->addWidget(w);
mainWindow->addToolBar(Qt::TopToolBarArea, uiToolbar);@ I get this !http://i.imgur.com/uDNAY.png!
And after moving it one widget is on top of another one:!http://i.imgur.com/PpI8c.png!
The same with a pre existing toolbar:
@preExistingToolbar->addWidget(w);@ Perfect: !http://i.imgur.com/L2mPp.png!

QMartin

Hello Julien!

I've tried your code and it works fine. I've done it subclassing a QMainWindow and directly from a main.cpp defining a basic QMainWindow. From both I obtained your desired form. Cannot find where the problem could be. Maybe I didn't understand your problem.

@#include <QtGui>
#include <QApplication>

int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QMainWindow *mainWindow = new QMainWindow();

QToolBar* uiToolbar = new QToolBar(mainWindow);
 
QWidget *w = new QWidget;
QGridLayout *gbox = new QGridLayout;
 
QComboBox* parametersCB = new QComboBox;
QLabel* typeLabel = new QLabel("type");
QLabel* currentLabel = new QLabel("Current parameters:");
 
gbox->addWidget(currentLabel,0,0,1,2);
gbox->addWidget(parametersCB,1,0);
gbox->addWidget(typeLabel,1,1);
 
w->setLayout(gbox);
uiToolbar->addWidget(w);
mainWindow->addToolBar(Qt::TopToolBarArea, uiToolbar);

mainWindow->show();

return app.exec();

}@

Could you give more details?

Regards

JulienMaille

First, thanks a lot for your time!
Can you post a screenshot of the result?
That is really weird, something in my code must be interacting with the layout, but I have no idea what it is.

QMartin

Of course. But I don't know how to post a picture here, it asks me for some source. How did you managed to do it? O.o

JulienMaille

use http://imgur.com/

QMartin

Ok, thanks!

Here you are !http://i.imgur.com/flPRn.png?1(image1)!

utcenter

Or simply put the combo box and the type label in a new horizontal layout that is added after the first label in a vertical layout. I actually prefer that to setting up a grid layout.

JulienMaille

There must be something broken in my toolbar. How can I easily debug that?

QMartin

Hello again!

Select a debug build and introduce break points wherever you want/need. Look anywhere you are accessing the toolbar. If you cannot find the problem just proceed as utcenter said:

bq. put the combo box and the type label in a new horizontal layout that is added after the first label in a vertical layout

Sometimes this method simplifies your life.

Good luck!

JulienMaille

That solved it! Thanks again.