Drawing widgets inside a Qt application

[aughey]

That's not quite what I'm looking for. I don't want to use QGraphicsViews, I want a widget to draw itself, on command, using the OpenGL calls. It'd be something like this....

void MyObj:aintGL() {
// setup gl matrices

// do other GL painting stuff

QPushButton button("foobar");

button.paint(within_this_established_openGL_enviro nment);

// Manipulate the modelview matricies.

// Draw that same button again transformed just to make a point.
button.paint(within_this_established_openGL_enviro nment);
}

I realize this isn't right, but this is the context in which I want to render widgets.

[desertpilot]

Can't comment on OpenGL, but usually I create a QWidget inherited object and overwrite the virtual QWidget:aintEvent(QPaintEvent* event):

void MyWidget::paintEvent(QPaintEvent* event)
{
    QPainter painter(this);
    // use painter to draw
}

void MyWidget::paintEvent(QPaintEvent* event)
{
    QPainter painter(this);
    // use painter to draw
}

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Then I place it into an empty QFrame object of the parent window.

[wysota]

I don't want to use QGraphicsViews, I want a widget to draw itself, on command, using the OpenGL calls.

And what is wrong with using Graphics View for that?

If you just want the looks of a button, then you can render a button to an image (either directly using a widget or through QStyle) and then use that as a texture in OpenGL. But the widget will not be clickable, etc. For that you need Graphics View.