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globalshortcutmanager.cpp
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/*
* globalshortcutmanager.cpp - Class managing global shortcuts
* Copyright (C) 2006 Maciej Niedzielski
*
* 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "globalshortcutmanager.h"
#include <QCoreApplication>
#include "globalshortcuttrigger.h"
/**
* \brief Constructs new GlobalShortcutManager.
*/
GlobalShortcutManager::GlobalShortcutManager()
: QObject(QCoreApplication::instance())
{
}
GlobalShortcutManager::~GlobalShortcutManager()
{
clear();
}
GlobalShortcutManager* GlobalShortcutManager::instance_ = 0;
/**
* \brief Returns the instance of GlobalShortcutManager.
*/
GlobalShortcutManager* GlobalShortcutManager::instance()
{
if (!instance_)
instance_ = new GlobalShortcutManager();
return instance_;
}
/**
* \brief Connects a key sequence with a slot.
* \param key, global shortcut to be connected
* \param receiver, object which should receive the notification
* \param slot, the SLOT() of the \a receiver which should be triggerd if the \a key is activated
*/
bool GlobalShortcutManager::connect(const QKeySequence& key, QObject* receiver, const char* slot)
{
KeyTrigger* t = instance()->triggers_[key];
if (!t) {
t = new KeyTrigger(key);
if (!t->isValid())
return false;
instance()->triggers_.insert(key, t);
}
QObject::connect(t, SIGNAL(activated()), receiver, slot);
return true;
}
/**
* \brief Disonnects a key sequence from a slot.
* \param key, global shortcut to be disconnected
* \param receiver, object which \a slot is about to be disconnected
* \param slot, the SLOT() of the \a receiver which should no longer be triggerd if the \a key is activated
*/
void GlobalShortcutManager::disconnect(const QKeySequence& key, QObject* receiver, const char* slot)
{
KeyTrigger* t = instance()->triggers_[key];
if (!t) {
return;
}
QObject::disconnect(t, SIGNAL(activated()), receiver, slot);
if (!t->isUsed()) {
delete instance()->triggers_.take(key);
}
}
void GlobalShortcutManager::clear()
{
foreach (KeyTrigger* t, instance()->triggers_)
delete t;
instance()->triggers_.clear();
}

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