让GtkButton看起来很沮丧

Question

So I have a shape drawing program, with a toolbar with buttons for box, circle, segment, etc. If you click a shape button (such as the box button), you can drag the mouse to draw that kind of shape. I didn't use toggle buttons because I don't want it so that if you draw a box you have to "untoggle" the box button before you can "toggle" the circle button, for example. However, I'm trying to make it so that when you have clicked a shape button, it looks "depressed" so you know what shape you're drawing until you click another button.

I try to make it look depressed by putting this in the clicked callback:

gtk_widget_set_state_flags(button, GTK_STATE_FLAG_ACTIVE, TRUE);

However, it's not working. Any help is greatly appreciated!

Answer 1

I think it's easier to use a toggle button, but programmatically untoggle them when the user is done drawing the box. This way you don't have to fight the API or hurt any buttons' feelings.