objectenummodel.cpp

   1 /*
   2   objectenummodel.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 "objectenummodel.h"
  25 #include <qmetaobject.h>
  26
  27 using namespace GammaRay;
  28
  29 typedef MetaObjectModel<QMetaEnum,
  30                         &QMetaObject::enumerator,
  31                         &QMetaObject::enumeratorCount,
  32                         &QMetaObject::enumeratorOffset> SuperClass;
  33
  34 GammaRay::ObjectEnumModel::ObjectEnumModel(QObject *parent) : SuperClass(parent)
  35 {
  36 }
  37
  38 int ObjectEnumModel::rowCount(const QModelIndex &parent) const
  39 {
  40   if (!parent.isValid()) {
  41     return SuperClass::rowCount(parent);
  42   }
  43   if (parent.parent().isValid()) {
  44     return 0;
  45   }
  46   const QMetaEnum e = m_object.data()->metaObject()->enumerator(parent.row());
  47   return e.keyCount();
  48 }
  49
  50 int GammaRay::ObjectEnumModel::columnCount(const QModelIndex &parent) const
  51 {
  52   Q_UNUSED(parent);
  53   return 3;
  54 }
  55
  56 QVariant ObjectEnumModel::data(const QModelIndex &index, int role) const
  57 {
  58   if (!index.parent().isValid()) {
  59     return SuperClass::data(index, role);
  60   }
  61
  62   if (role == Qt::DisplayRole) {
  63     const QMetaEnum e = m_object.data()->metaObject()->enumerator(index.parent().row());
  64     if (index.column() == 0) {
  65       return e.key(index.row());
  66     }
  67     if (index.column() == 1) {
  68       return e.value(index.row());
  69     }
  70   }
  71
  72   return QVariant();
  73 }
  74
  75 QVariant ObjectEnumModel::metaData(const QModelIndex &index,
  76                                const QMetaEnum &enumerator, int role) const
  77 {
  78   if (role == Qt::DisplayRole) {
  79     if (index.column() == 0) {
  80       return QString::fromLatin1(enumerator.name());
  81     }
  82     if (index.column() == 1) {
  83       return tr("%n element(s)", "", enumerator.keyCount());
  84     }
  85   }
  86   return QVariant();
  87 }
  88
  89 QString ObjectEnumModel::columnHeader(int index) const
  90 {
  91   switch (index) {
  92   case 0:
  93     return tr("Name");
  94   case 1:
  95     return tr("Value");
  96   }
  97   return QString();
  98 }
  99
 100 QModelIndex GammaRay::ObjectEnumModel::index(int row, int column, const QModelIndex &parent) const
 101 {
 102   if (!parent.isValid()) {
 103     return SuperClass::index(row, column, parent);
 104   }
 105   return createIndex(row, column, parent.row());
 106 }
 107
 108 QModelIndex GammaRay::ObjectEnumModel::parent(const QModelIndex &child) const
 109 {
 110   if (child.internalId() == -1) {
 111     return SuperClass::parent(child);
 112   }
 113   return SuperClass::index(child.internalId(), 0, QModelIndex());
 114 }