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metapropertymodel.cpp
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metapropertymodel.cpp
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/*
metapropertymodel.cpp
This file is part of GammaRay, the Qt application inspection and
manipulation tool.
Copyright (C) 2011 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
Author: Volker Krause <volker.krause@kdab.com>
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 program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "metapropertymodel.h"
#include "metaobjectrepository.h"
#include "metaobject.h"
#include "util.h"
using namespace GammaRay;
MetaPropertyModel::MetaPropertyModel(QObject *parent):
QAbstractTableModel(parent),
m_metaObject(0),
m_object(0)
{
}
void MetaPropertyModel::setObject(void *object, const QString &typeName)
{
beginResetModel();
m_object = object;
m_metaObject = MetaObjectRepository::instance()->metaObject(typeName);
endResetModel();
}
void MetaPropertyModel::setObject(QObject *object)
{
beginResetModel();
m_object = 0;
m_metaObject = 0;
if (object) {
const QMetaObject *mo = object->metaObject();
while (mo && !m_metaObject) {
m_metaObject = MetaObjectRepository::instance()->metaObject(mo->className());
mo = mo->superClass();
}
if (m_metaObject) {
m_object = object;
}
}
endResetModel();
}
int MetaPropertyModel::columnCount(const QModelIndex &parent) const
{
Q_UNUSED(parent);
return 4;
}
int MetaPropertyModel::rowCount(const QModelIndex &parent) const
{
if (parent.isValid() || !m_metaObject) {
return 0;
}
return m_metaObject->propertyCount();
}
QVariant MetaPropertyModel::headerData(int section, Qt::Orientation orientation, int role) const
{
if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
switch (section) {
case 0:
return tr("Property");
case 1:
return tr("Value");
case 2:
return tr("Type");
case 3:
return tr("Class");
}
}
return QAbstractItemModel::headerData(section, orientation, role);
}
QVariant MetaPropertyModel::data(const QModelIndex &index, int role) const
{
if (!m_metaObject || !index.isValid()) {
return QVariant();
}
MetaProperty *property = m_metaObject->propertyAt(index.row());
if (role == Qt::DisplayRole) {
switch (index.column()) {
case 0:
return property->name();
case 2:
return property->typeName();
case 3:
return property->metaObject()->className();
}
}
if (index.column() == 1) {
if (!m_object) {
return QVariant();
}
// TODO: cache this, to make this more robust against m_object becoming invalid
const QVariant value = property->value(m_metaObject->castForPropertyAt(m_object, index.row()));
switch (role) {
case Qt::DisplayRole:
return Util::variantToString(value);
case Qt::DecorationRole:
return Util::decorationForVariant(value);
case Qt::EditRole:
return value;
}
}
return QVariant();
}
bool MetaPropertyModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
if (index.isValid() && index.column() == 1 && m_metaObject && m_object && role == Qt::EditRole) {
MetaProperty *property = m_metaObject->propertyAt(index.row());
property->setValue(m_metaObject->castForPropertyAt(m_object, index.row()), value);
return true;
}
return QAbstractItemModel::setData(index, value, role);
}
Qt::ItemFlags MetaPropertyModel::flags(const QModelIndex &index) const
{
const Qt::ItemFlags f = QAbstractItemModel::flags(index);
if (!index.isValid() || index.column() != 1 || !m_metaObject || !m_object) {
return f;
}
MetaProperty *property = m_metaObject->propertyAt(index.row());
if (property->isReadOnly()) {
return f;
}
return f | Qt::ItemIsEditable;
}
#include "metapropertymodel.moc"