97 lines
2.5 KiB
C++
97 lines
2.5 KiB
C++
/*
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Copyright (C) 2001 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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#include <gtkmm.h>
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#include "grouped_buttons.h"
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using namespace std;
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GroupedButtons::GroupedButtons (vector<Gtk::ToggleButton *>& buttonset)
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{
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uint32_t n = 0;
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buttons = buttonset;
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for (vector<Gtk::ToggleButton *>::iterator i = buttons.begin(); i != buttons.end(); ++i, ++n) {
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if ((*i)->get_active()) {
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current_active = n;
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}
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(*i)->signal_clicked().connect (sigc::bind (mem_fun (*this, &GroupedButtons::one_clicked), n));
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}
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}
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GroupedButtons::GroupedButtons (uint32_t nbuttons, uint32_t first_active)
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{
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buttons.reserve (nbuttons);
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current_active = first_active;
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for (uint32_t n = 0; n < nbuttons; ++n) {
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Gtk::ToggleButton *button;
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button = manage (new (Gtk::ToggleButton));
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if (n == current_active) {
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button->set_active (true);
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}
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button->signal_clicked().connect (sigc::bind (mem_fun (*this, &GroupedButtons::one_clicked), n));
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buttons.push_back (button);
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}
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}
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static gint
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reactivate_button (void *arg)
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{
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Gtk::ToggleButton *b = (Gtk::ToggleButton *) arg;
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b->set_active (true);
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return FALSE;
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}
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void
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GroupedButtons::one_clicked (uint32_t which)
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{
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if (buttons[which]->get_active()) {
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if (which != current_active) {
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uint32_t old = current_active;
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current_active = which;
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buttons[old]->set_active (false);
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}
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} else if (which == current_active) {
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/* Someobody tried to unset the current active
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button by clicking on it. This caused
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set_active (false) to be called. We don't
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allow that, so just reactivate it.
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Don't try this right here, because of some
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design glitches with GTK+ toggle buttons.
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Setting the button back to active from
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within the signal emission that marked
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it as inactive causes a segfault ...
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*/
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gtk_idle_add (reactivate_button, buttons[which]);
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}
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}
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