ardour/libs/gtkmm2ext/stateful_button.cc

/*
    Copyright (C) 2000-2007 Paul Davis 

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include <string>
#include <iostream>

#include <gtkmm/main.h>

#include "pbd/stacktrace.h"

#include <gtkmm2ext/stateful_button.h>

using namespace Gtk;
using namespace Glib;
using namespace Gtkmm2ext;
using namespace std;

StateButton::StateButton () : visual_state (0), _self_managed (false), _is_realized (false)
{
  
}

void
StateButton::set_visual_state (int n)
{
	if (!_is_realized) {
		/* not yet realized */
		visual_state = n;
		return;
	}

	if (n == visual_state) {
		return;
	}

	string name = get_widget_name ();
	name = name.substr (0, name.find_last_of ('-'));

	switch (n) {
	case 0:
		/* relax */
		break;
	case 1:
		name += "-active";
		break;
	case 2:
		name += "-alternate";
		break;
	}

	set_widget_name (name);
	visual_state = n;
}

/* ----------------------------------------------------------------- */

void
StatefulToggleButton::on_realize ()
{
	ToggleButton::on_realize ();

	_is_realized = true;
	visual_state++; // to force transition
	set_visual_state (visual_state - 1);
}

void
StatefulButton::on_realize ()
{
	Button::on_realize ();

	_is_realized = true;
	visual_state++; // to force transition
	set_visual_state (visual_state - 1);
}

void
StatefulToggleButton::on_toggled ()
{
	if (!_self_managed) {
		if (get_active()) {
			set_visual_state (1);
		} else {
			set_visual_state (0);
		}
	}
}

void
StatefulToggleButton::set_widget_name (const std::string& name)
{
	set_name (name); 
	Widget* w = get_child();

	if (w) {
		w->set_name (name); 
	} else {
		cerr << "Statefull TOggle button - no child\n";
		PBD::stacktrace (cerr, 20);
	}
}

void
StatefulButton::set_widget_name (const std::string& name)
{
	set_name (name); 
	Widget* w = get_child();

	if (w) {
		w->set_name (name); 
	} else {
		cerr << "Stateful button - no child\n";
		PBD::stacktrace (cerr, 20);
	}
}