Remove all spacing in QGridLayout
macos, qt
Solution
Apparently, this is considered a normal thing: see the corresponding bug report, which was closed. The workaround reported there doesn't seem to work for me.
Problem
I'm trying to build programmaticaly (with Qt 4.6) a window containing a series of `QPushButton`'s, all packed together. It should look like so (which I call a toolbox): toolbox image http://img99.imageshack.us/img99/9853/examplezk.png So, I created a Toolbox class, deriving from QWidget, that has the following constructor: ``` Toolbox::Toolbox (void) : QWidget (0, Qt::Tool) { setWindowTitle (tr ("Toolbox")); QGridLayout *group = new QGridLayout (this); group->setSpacing (0); group->setContentsMargins (0, 0, 0, 0); group->setSizeConstraint (QLayout::SetFixedSize); setLayout (group); unsigned k = 0; QPushButton *buttons = new QPushButton[6]; for (unsigned i = 0; i < 3; i++) for (unsigned j = 0; j < 2; j++) { buttons[k].setIcon (QIcon ("test.png")); buttons[k].setIconSize (QSize (32, 32)); buttons[k].setContentsMargins (0, 0, 0, 0); buttons[k].setCheckable (true); buttons[k].setAutoExclusive (true); group->addWidget (&buttons[k], i, j); k++; } buttons[1].setChecked (true); ``` Somehow, it does not work and my buttons don't end up packed together: result http://img9.imageshack.us/img9/774/resultr.png I can't manage to remove this vertical spacing (and the margins surrounding the entire array). Any help is welcome.