// This event is called when the user resizes the main_window. Note that unlike the other
// events, this event is part of the drawable_window base class that main_window inherits from.
// So you won't see any statements in the constructor that say "register the main_window::on_window_resized function"
void main_window::
on_window_resized ()
{
// when you override any of the drawable_window events you have to make sure you
// call the drawable_window's version of them because it needs to process
// the events as well. So we do that here.
drawable_window::on_window_resized();
// The rest of this function positions the widgets on the window
unsigned long width,height;
get_size(width,height);
// Don't do anything if the user just made the window too small. That is, leave
// the widgets where they are.
if (width < 500 || height < 350)
return;
// Set the size of the probability tables and the drawing area for the graph
graph_drawer.set_size(width-370,height-10-mbar.height());
cpt_grid.set_size((width-graph_drawer.width())-35,height-237);
ppt_grid.set_size((width-graph_drawer.width())-35,height-237);
// tell the tabbed display to make itself just the right size to contain
// the two probability tables.
tables.fit_to_contents();
// Now position all the widgets in the window. Note that much of the positioning
// is relative to other widgets. This part of the code I just figured out by
// trying stuff and rerunning the program to see if it looked nice.
sel_node_index.set_pos(graph_drawer.right()+14,graph_drawer.top()+18);
sel_node_text_label.set_pos(sel_node_index.left(),sel_node_index.bottom()+5);
sel_node_text.set_pos(sel_node_text_label.right()+5,sel_node_index.bottom());
sel_node_num_values_label.set_pos(sel_node_index.left(), sel_node_text.bottom()+5);
sel_node_num_values.set_pos(sel_node_num_values_label.right(), sel_node_text.bottom()+5);
sel_node_is_evidence.set_pos(sel_node_index.left(),sel_node_num_values.bottom()+5);
sel_node_evidence_label.set_pos(sel_node_index.left(),sel_node_is_evidence.bottom()+5);
sel_node_evidence.set_pos(sel_node_evidence_label.right()+5,sel_node_is_evidence.bottom());
tables.set_pos(sel_node_index.left(),sel_node_evidence.bottom()+5);
sel_node_evidence.set_width(tables.right()-sel_node_evidence.left()+1);
sel_node_text.set_width(tables.right()-sel_node_text.left()+1);
sel_node_num_values.set_width(tables.right()-sel_node_num_values.left()+1);
// Tell the named rectangle to position itself such that it fits around the
// tabbed display that contains the probability tables and the label at the top of the
// screen.
selected_node_rect.wrap_around(sel_node_index.get_rect()+
tables.get_rect());
// finally set the button to be at the bottom of the named rectangle
btn_calculate.set_pos(selected_node_rect.left(), selected_node_rect.bottom()+5);
}
