RubyQt Crashing on QTableWidget

Posted by gja on Stack Overflow See other posts from Stack Overflow or by gja
Published on 2010-03-17T11:27:25Z Indexed on 2010/03/17 11:31 UTC
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I'm getting some weirdness with QtRuby when using a TableWidget. The table widget loads, but when you click on the elements in the row, the app segfaults and crashes.

require 'Qt4'



class SimpleModel < Qt::AbstractTableModel

    def rowCount(parent)

        return 1

    end



    def columnCount(parent)

        return 1

    end



    def data(index, role=Qt::DisplayRole)

        return Qt::Variant.new("Really Long String") if index.row == 0 and index.column == 0 and role == Qt::DisplayRole

        return Qt::Variant.new

    end

end



Qt::Application.new(ARGV) do

    Qt::TableWidget.new(1, 1) do

        set_model SimpleModel.new

        show

    end



    exec

end

The backtrace seems to imply that it is bombing in mousePressEvent

#6  0x01624643 in QAbstractItemView::pressed(QModelIndex const&) () from /usr/lib/libQtGui.so.4

#7  0x016306f5 in QAbstractItemView::mousePressEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4

If I override mousePressEvent and mouseMoveEvent, these kinds of crashes no longer happen. Am I doing something wrong over here, or can I chalk this up as a bug in QtRuby?

I'm on fedora11, with the following packages installed:

QtRuby-4.4.0-1.fc11.i586

ruby-1.8.6.369-1.fc11.i586

These crashes also happen when running the script on Windows.

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