vaikene.ee Git - evaf/blob - src/libs/Common/registry.cpp

   1 /**
   2  * @file Common/registry.cpp
   3  * @brief Common registry implementation
   4  * @author Enar Vaikene
   5  *
   6  * Copyright (c) 2011-2019 Enar Vaikene
   7  *
   8  * This file is part of the eVaf C++ cross-platform application development framework.
   9  *
  10  * This file can be used under the terms of the GNU General Public License
  11  * version 3.0 as published by the Free Software Foundation and appearing in
  12  * the file LICENSE included in the packaging of this file. Please review the
  13  * the following information to ensure the GNU General Public License version
  14  * 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
  15  *
  16  * Alternatively, this file may be used in accordance with the Commercial License
  17  * Agreement provided with the Software.
  18  */
  19
  20 #include "registry.h"
  21 #include "globals.h"
  22 #include "version.h"
  23
  24 #include <QtCore>
  25
  26 //-------------------------------------------------------------------
  27
  28 using namespace eVaf::Common;
  29
  30 iRegistry * iRegistry::instance()
  31 {
  32     static Internal::Registry singleton;
  33     return &singleton;
  34 }
  35
  36
  37 //-------------------------------------------------------------------
  38
  39 using namespace eVaf::Common::Internal;
  40
  41 Registry::Registry()
  42     : iRegistry()
  43 {
  44     setObjectName(QString("%1-iRegistry").arg(VER_MODULE_NAME_STR));
  45
  46     // Register our own interface
  47     registerInterface("iRegistry", this);
  48 }
  49
  50 Registry::~Registry()
  51 {
  52     mInterfaces.clear();
  53 }
  54
  55 bool Registry::registerInterface(QString const & name, QObject * obj)
  56 {
  57     // Add the interface to the list of registered interfaces and connect to
  58     // the destroyed() signal.
  59     mInterfaces.insert(name, obj);
  60     connect(obj, SIGNAL(destroyed(QObject *)), this, SLOT(interfaceDestroyed(QObject *)));
  61
  62     return true;
  63 }
  64
  65 QObject * Registry::queryInterface(QString const & name) const
  66 {
  67     Interfaces::const_iterator it = mInterfaces.constFind(name);
  68     return it != mInterfaces.constEnd() ? *it : nullptr;
  69 }
  70
  71 void Registry::interfaceDestroyed(QObject * obj)
  72 {
  73     // Interface object destroyed. Remove it from the list of registered
  74     // interfaces.
  75     Interfaces::iterator it = mInterfaces.begin();
  76     Interfaces::const_iterator e = mInterfaces.end();
  77     while (it != e) {
  78         if (*it == obj) {
  79             it = mInterfaces.erase(it);
  80         }
  81         else {
  82             ++it;
  83         }
  84     }
  85 }