Layout not respecting sizes

[GrahamLa]

Hi
I have a horizontal layout into which I add widgets of a fixed size.
This layout is then added to a grid layout but when displayed the sizes are not respected.
Please can anyone tell me what I have wrong?
Thanks

			QHBoxLayout* l = new QHBoxLayout();
			m_pxLatCogGraphLabel->setFixedSize(QSize(50, 50));
			m_pxModeSelectorLabel->setFixedSize(QSize(100, 50));
			m_pxModeSelector->setFixedSize(QSize(60, 50));

			m_pxLatCogGraphLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
			m_pxModeSelectorLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
			m_pxModeSelector->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);

			l->addWidget(m_pxLatCogGraphLabel);
			//l->addSpacerItem(new QSpacerItem(40, 0, QSizePolicy::Fixed));
			l->addWidget(m_pxModeSelectorLabel);
			l->addWidget(m_pxModeSelector);
			l->setSizeConstraint(QLayout::SetFixedSize);

[VRonin]

The layout has to fill all the space, you just have to give it something to occupy the extra space. add l->addStretch(1); to tell it where the extra white space should go

[GrahamLa]

@VRonin
I have played with the stretch factor but the widgets still remain the same size.
Is there anything else I can try?

[SGaist]

Hi,

Can you show what you get and what you would expect ?

[GrahamLa]

@SGaist
Hi
This is my current code

	m_pxModeSelector = new LeftRightSlider(QStringLiteral("WeightAndBalanceModeSelector"));
	m_pxModeSelector->setEnabled(true);
	m_pxModeSelectorLabel = new QLabel(m_strModeSelectorLabel);

	m_pxModeSelector->setMaximumSize(60, 60);
	m_pxModeSelectorLabel->setMaximumSize(100, 60);
	m_pxLatCogGraphLabel->setMaximumSize(100, 60);

	QHBoxLayout* box = new QHBoxLayout();
	box->addWidget(m_pxLatCogGraphLabel);
	box->addWidget(m_pxModeSelectorLabel);
	box->addWidget(m_pxModeSelector);

	box->addStretch(1);

This displays this

Changing the sizes of the labels seems to work, but not the slider button.
I would like it to look like this

Any ideas would be appreciated

[VRonin]

m_pxModeSelector->setSizePolicy(QSizePolicy::Preferred,QSizePolicy::Preferred);
QHBoxLayout* box = new QHBoxLayout();
box->addWidget(m_pxLatCogGraphLabel);
box->addItem(new QSpacerItem(1,1,QSizePolicy::Expanding,QSizePolicy::Preferred));
box->addWidget(m_pxModeSelectorLabel);
box->addWidget(m_pxModeSelector);

[GrahamLa]

@VRonin
Unfortunately this gives the same result in my case

[VRonin]

Strange...
Can you try this minimal example?

#include <QApplication>
#include <QSlider>
#include <QLabel>
#include <QHBoxLayout>

int main(int argc, char ** argv)
{
    QApplication app(argc,argv);
    QWidget mainWid;
    mainWid.setMinimumSize(600,10);
    QLabel *label1 = new QLabel("Test1",&mainWid);
    QLabel *label2 = new QLabel("Test2",&mainWid);
    QSlider* slider = new QSlider(Qt::Horizontal,&mainWid);
    slider->setRange(0,100);
    slider->setSizePolicy(QSizePolicy::Preferred,QSizePolicy::Preferred);
    QHBoxLayout* mainLay = new QHBoxLayout(&mainWid);
    mainLay->addWidget(label1);
    mainLay->addItem(new QSpacerItem(1,1,QSizePolicy::Expanding,QSizePolicy::Preferred));
    mainLay->addWidget(label2);
    mainLay->addWidget(slider);
    mainWid.show();
    return app.exec();
}