git-svn-id: svn://localhost/ardour2/branches/3.0@3437 d708f5d6-7413-0410-9779-e7cbd77b26cf
112 lines
2.4 KiB
C++
112 lines
2.4 KiB
C++
// -*- c++ -*-
|
|
/*
|
|
* Copyright 2002, The libsigc++ Development Team
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include <sigc++/connection.h>
|
|
using namespace std;
|
|
|
|
namespace sigc {
|
|
|
|
connection::connection()
|
|
: slot_(0)
|
|
{}
|
|
|
|
connection::connection(const connection& c)
|
|
: slot_(c.slot_)
|
|
{
|
|
//Let the connection forget about the signal handler when the handler object dies:
|
|
if (slot_)
|
|
slot_->add_destroy_notify_callback(this, ¬ify);
|
|
}
|
|
|
|
connection::connection(slot_base& sl)
|
|
: slot_(&sl)
|
|
{
|
|
//Let the connection forget about the signal handler when the handler object dies:
|
|
slot_->add_destroy_notify_callback(this, ¬ify);
|
|
}
|
|
|
|
connection& connection::operator=(const connection& c)
|
|
{
|
|
set_slot(c.slot_);
|
|
return *this;
|
|
}
|
|
|
|
connection::~connection()
|
|
{
|
|
if (slot_)
|
|
slot_->remove_destroy_notify_callback(this);
|
|
}
|
|
|
|
bool connection::empty() const
|
|
{
|
|
return (!slot_ || slot_->empty());
|
|
}
|
|
|
|
bool connection::connected() const
|
|
{
|
|
return !empty();
|
|
}
|
|
|
|
bool connection::blocked() const
|
|
{
|
|
return (slot_ ? slot_->blocked() : false);
|
|
}
|
|
|
|
bool connection::block(bool should_block)
|
|
{
|
|
return (slot_ ? slot_->block(should_block) : false);
|
|
}
|
|
|
|
bool connection::unblock()
|
|
{
|
|
return (slot_ ? slot_->unblock() : false);
|
|
}
|
|
|
|
void connection::disconnect()
|
|
{
|
|
if (slot_)
|
|
slot_->disconnect(); // This notifies slot_'s parent.
|
|
}
|
|
|
|
connection::operator bool()
|
|
{
|
|
return !empty();
|
|
}
|
|
|
|
void connection::set_slot(slot_base* sl)
|
|
{
|
|
if (slot_)
|
|
slot_->remove_destroy_notify_callback(this);
|
|
|
|
slot_ = sl;
|
|
|
|
if (slot_)
|
|
slot_->add_destroy_notify_callback(this, ¬ify);
|
|
}
|
|
|
|
void* connection::notify(void* data)
|
|
{
|
|
connection* self = reinterpret_cast<connection*>(data);
|
|
self->slot_ = 0;
|
|
return 0;
|
|
}
|
|
|
|
} /* namespace sigc */
|