[gtkextra] repaint on resize

[Luis A. M. <lu...@qd...>]

Hi,

I've solved my problem with multiple sets, it was actually on my code,
not gtkextra. I'm not using 3.0.1 yet, though. But I want to get it
working with my current version and then I can try to see if I can
figure out why 3.0.1 is not drawing on the canvas under MS windows.
The only thing left before I do that is to repaint the plot after a
window resize. The plot seems to repaint itself on an expose event (that
is, if I cover the window and then uncover it, it repaints) but several
combinations of gtk_plot_paint and/or send_expose on_size_allocate,
on_idle, on_realize either don't do anything or produce a SIGV. Anybody
has some trick that can share?

The last thing I tried involved sending a delayed expose event (I'm
using gtkmm):

void GtkPlotWrapper::on_size_allocate( Gtk::Allocation &allocation )
{
	set_allocation( allocation );
	gtk_plot_canvas_set_size(
		GTK_PLOT_CANVAS(pImpl->m_canvas), 
		allocation.get_width(), 
		allocation.get_height() );
	gtk_widget_set_uposition(
		GTK_WIDGET(pImpl->m_canvas),
		allocation.get_x(),
		allocation.get_y() );
	pImpl->m_resized = true;
	pImpl->m_resized_time_stamp = clock();
}

bool GtkPlotWrapper::on_idle()
{
	if (pImpl){
		if ((pImpl->m_resized)&&(clock()-pImpl->m_resized_time_stamp>500))
			send_expose((GdkEvent *)&pImpl->m_event);
		pImpl->m_resized = false;
	}
	return true;
}

If I change the send_expose with a gtk_plot_paint it segfaults.

Thanks again,

Luis