objectpropertymodel.cpp

   1 /*
   2   objectpropertymodel.cpp
   3
   4   This file is part of GammaRay, the Qt application inspection and
   5   manipulation tool.
   6
   7   Copyright (C) 2010-2011 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
   8   Author: Volker Krause <volker.krause@kdab.com>
   9
  10   This program is free software; you can redistribute it and/or modify
  11   it under the terms of the GNU General Public License as published by
  12   the Free Software Foundation, either version 2 of the License, or
  13   (at your option) any later version.
  14
  15   This program is distributed in the hope that it will be useful,
  16   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18   GNU General Public License for more details.
  19
  20   You should have received a copy of the GNU General Public License
  21   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include "objectpropertymodel.h"
  25
  26 #include <QtCore/QMetaProperty>
  27 #include <QtCore/QTimer>
  28
  29 using namespace GammaRay;
  30
  31 ObjectPropertyModel::ObjectPropertyModel(QObject *parent)
  32   : QAbstractTableModel(parent),
  33     m_updateTimer(new QTimer(this))
  34 {
  35   connect(m_updateTimer, SIGNAL(timeout()), SLOT(doEmitChanged()));
  36   m_updateTimer->setSingleShot(true);
  37 }
  38
  39 void ObjectPropertyModel::setObject(QObject *object)
  40 {
  41   if (m_obj) {
  42     disconnect(m_obj.data(), 0, this, SLOT(updateAll()));
  43     disconnect(m_obj.data(), 0, this, SLOT(slotReset()));
  44   }
  45   m_obj = object;
  46   if (object) {
  47     connect(object, SIGNAL(destroyed(QObject*)), SLOT(slotReset()));
  48     for (int i = 0; i < object->metaObject()->propertyCount(); ++i) {
  49       const QMetaProperty prop = object->metaObject()->property(i);
  50       if (prop.hasNotifySignal()) {
  51         connect(object, QByteArray("2") + prop.notifySignal().signature(), SLOT(updateAll()));
  52       }
  53     }
  54   }
  55   reset();
  56 }
  57
  58 QVariant ObjectPropertyModel::headerData(int section, Qt::Orientation orientation, int role) const
  59 {
  60   if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
  61     switch (section) {
  62     case 0:
  63       return tr("Property");
  64     case 1:
  65       return tr("Value");
  66     case 2:
  67       return tr("Type");
  68     case 3:
  69       return tr("Class");
  70     }
  71   }
  72   return QAbstractItemModel::headerData(section, orientation, role);
  73 }
  74
  75 void ObjectPropertyModel::updateAll()
  76 {
  77   if (m_updateTimer->isActive()) {
  78     return;
  79   }
  80   m_updateTimer->start(100);
  81 }
  82
  83 void ObjectPropertyModel::doEmitChanged()
  84 {
  85   emit dataChanged(index(0, 0), index(rowCount() - 1, columnCount() - 1));
  86 }
  87
  88 #include "objectpropertymodel.moc"