Question

I am having what appears to be the same problem as asked in this (unanswered) question: Qt resizeGL problem

I am testing a new QGLWidget for a larger application. The resizeGL method is wired up to change the glViewport and repaint the OpenGL view. My QGLWidget is not part of a layout and is simply being created displayed as follows:

boost::shared_ptr<StandardCustomWidgetBuilder>
        builder(new StandardCustomWidgetBuilder());
WaterfallDirector<StandardCustomWidgetBuilder, DataSource> director(builder);
director.construct();
std::unique_ptr<CustomWidget> widget = builder->getWidget();
widget->show();

On my computer, this defaults to creating a 640×480 window and calls resizeGL upon initialization. Whenever I resize the window, resizeGL is never called.

In my attempts to remedy this I have attempted creating a separate QWidget that has a QVBoxLayout containing only the CustomWidget. This created a very small window, so I fixed my sizeHint and sizePolicy for CustomWidget, though this still had no affect on having resizeGL called. At this point I’m not sure precisely how to proceed.

Answer 1

I resolved my problem with some help from my co-worker. As it turns out, I had implemented the event method and forgot to call the QGLWidget::event method inside it. The widget now correctly resizes.