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Member "regexxer-0.10/src/signalutils.cc" (6 Oct 2011, 2289 Bytes) of package /linux/privat/old/regexxer-0.10.tar.gz:


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    1 /*
    2  * Copyright (c) 2002-2007  Daniel Elstner  <daniel.kitta@gmail.com>
    3  *
    4  * This file is part of regexxer.
    5  *
    6  * regexxer is free software; you can redistribute it and/or modify
    7  * it under the terms of the GNU General Public License as published by
    8  * the Free Software Foundation; either version 2 of the License, or
    9  * (at your option) any later version.
   10  *
   11  * regexxer is distributed in the hope that it will be useful,
   12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   14  * GNU General Public License for more details.
   15  *
   16  * You should have received a copy of the GNU General Public License
   17  * along with regexxer; if not, write to the Free Software Foundation,
   18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   19  */
   20 
   21 #include "signalutils.h"
   22 
   23 
   24 namespace Util
   25 {
   26 
   27 /**** Util::QueuedSignal ***************************************************/
   28 
   29 QueuedSignal::QueuedSignal(int priority)
   30 :
   31   signal_   (),
   32   priority_ (priority),
   33   queued_   (false)
   34 {}
   35 
   36 QueuedSignal::~QueuedSignal()
   37 {}
   38 
   39 sigc::connection QueuedSignal::connect(const sigc::slot<void>& slot)
   40 {
   41   return signal_.connect(slot);
   42 }
   43 
   44 void QueuedSignal::queue()
   45 {
   46   if (!queued_)
   47   {
   48     Glib::signal_idle().connect(sigc::mem_fun(*this, &QueuedSignal::idle_handler), priority_);
   49     queued_ = true;
   50   }
   51 }
   52 
   53 bool QueuedSignal::idle_handler()
   54 {
   55   queued_ = false;
   56   signal_(); // emit
   57 
   58   return false; // disconnect idle handler
   59 }
   60 
   61 /**** Util::AutoConnection *************************************************/
   62 
   63 AutoConnection::AutoConnection()
   64 :
   65   connection_ (),
   66   blocked_    (false)
   67 {}
   68 
   69 AutoConnection::AutoConnection(const sigc::connection& connection)
   70 :
   71   connection_ (connection),
   72   blocked_    (connection_.blocked())
   73 {}
   74 
   75 AutoConnection::~AutoConnection()
   76 {
   77   connection_.disconnect();
   78 }
   79 
   80 void AutoConnection::block()
   81 {
   82   connection_.block();
   83   blocked_ = true;
   84 }
   85 
   86 void AutoConnection::unblock()
   87 {
   88   connection_.unblock();
   89   blocked_ = false;
   90 }
   91 
   92 AutoConnection& AutoConnection::operator=(const sigc::connection& connection)
   93 {
   94   AutoConnection temp (connection_);
   95 
   96   connection_ = connection;
   97   connection_.block(blocked_);
   98 
   99   return *this;
  100 }
  101 
  102 void AutoConnection::disconnect()
  103 {
  104   connection_.disconnect();
  105 }
  106 
  107 } // namespace Util