[Qt-interest] QLayout Disaster (resizing)

[Paul England]

This is driving me nuts, so before I tinker any more I should make sure 
what I'm trying to achieve is even possible.

My application is a QDialog, which has quite a few nested 
QHBoxLayouts/QVBoxLayouts and other QWidgets (QPushButtons, QLineEdits, 
and QTableWidgetItems for the most part).

I set all of my Layouts to sizeConstraint to QLayout::SetFixedSize, and 
I put in an stretch of -1.  The stretch works perfectly.  If the GUI is 
resized to anything larger than the necessary space, everything stays 
positioned (in the top left-hand corner).  However, when the GUI is 
resized to something smaller, the view_layout is definitely resized.  
Each my_view_t within it keeps it's relative position (all of the 
widgets within it keep their relative spacing and sizng) but they will 
overlap with each other.  So, if I have a QTableWidget within each 
my_view_t, if I resize the GUI small enough, I have 3 QTableWidgets 
overlapping one another.   This is obviously bad, and I can't figure out 
exactly where I'm messing it up.  The desired effect would be that the 
GUI simply resizes, but all the widgets inside are of a static size.  If 
the user only wants to "see" one of the my_view_t's, he just resizes the 
window to the desired size.

Here's some very summed up code. 

my_view_t::my_view_t() : public QHBoxLayout
{
    /* Add widgets & other layouts into this */
    setSizeConstraint( QLayout::SetFixedSize );
}

my_dialog_t::my_dialog_t() : public QDialog
{
    QVBoxLayout* main_layout = new QVBoxLayout( this );
    QHBoxLayout* view_layout = new QHBoxLayout( this );

    for ( int i = 0; i < 3; i++ ) {
       my_view_t* my_view = new my_view_t();
       view_layout->addLayout( my_view_t );
    }

    view_layout->insertStretch( -1, 0 );
    view_layout->setSizeConstraint( QLayout::SetFixedSize );

    main_layout->insertStretch( -1, 0 );
    setLayout( main_layout );
}