Center a widget in a cell on a QTableWidget

[roleroz]

Hi, i have a QTableWidget and set a cellWidget for one particular cell

The problem is that my widget has a fixed size and want that widget to be centered (horizontally and vertically) within the cell

Any ideas??

Best Regards

[e8johan]

Put it in another widget along with a set of springs that centers it.

[THRESHE]

Put it in another widget along with a set of springs that centers it.

Sorry about digging this old thread but could you post here some code that shows how to do it ?
Thanks

[jpn]

Sorry about digging this old thread but could you post here some code that shows how to do it ?

This is how it looks in Qt Designer:

[THRESHE]

I understand how it looks in the Designer But I've asked for some code
I've tried to solve it like this

QWidget* wdg = new QWidget;
QVBoxLayout layout(wdg);
layout.addSpacing(6);
layout.addWidget(holder->GetProgressBar());
layout.addSpacing(6);
wdg->setLayout(&layout);
table->setCellWidget(vectIndex_, 4, wdg);

QWidget* wdg = new QWidget;
QVBoxLayout layout(wdg);
layout.addSpacing(6);
layout.addWidget(holder->GetProgressBar());
layout.addSpacing(6);
wdg->setLayout(&layout);
table->setCellWidget(vectIndex_, 4, wdg);

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But it worked the way I didn't expect it to work. The progress bar was centered but it became 3 pixels high not 12

[jpn]

Spacing is non-stretchable space. Add stretch instead of spacing.

[THRESHE]

Spacing is non-stretchable space. Add stretch instead of spacing.

I know but height of the row is also non-stretchable

[jpn]

I know but height of the row is also non-stretchable

Ok, in other words: spacing is a space of fixed amount of pixels.

<spacing 6 px><widget N px><spacing 6 px> = takes always 12 + N pixels
<stretch><widget N px><stretch> = takes M + N pixels where M stretches to available space

[THRESHE]

Here is a screenshot and some code

QLabel* pL = new QLabel;
 
QMovie* movie_ = new QMovie;
movie_->setFileName(":/images/StatusIcons/ico_complete.png");
 
QHBoxLayout* layout = new QHBoxLayout(pL);
QLabel* ic = new QLabel;
QLabel* f = new QLabel("Hello World");
ic		->setMovie(movie_);
layout	->addWidget(ic, 5, Qt::AlignRight);
movie_->start();
layout	->addWidget(f);
 
table->setCellWidget(vectIndex_, 3, pL);

QLabel* pL = new QLabel;

QMovie* movie_ = new QMovie;
movie_->setFileName(":/images/StatusIcons/ico_complete.png");

QHBoxLayout* layout = new QHBoxLayout(pL);
QLabel* ic = new QLabel;
QLabel* f = new QLabel("Hello World");
ic		->setMovie(movie_);
layout	->addWidget(ic, 5, Qt::AlignRight);
movie_->start();
layout	->addWidget(f);

table->setCellWidget(vectIndex_, 3, pL);

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I can not understand what's the problem

[jpn]

Layouts have margin by default so try:

layout->setMargin(0);

layout->setMargin(0);

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[THRESHE]

Layouts have margin by default so try:

layout->setMargin(0);

layout->setMargin(0);

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Did the trick thanks a lot jpn