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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#include "stateseditormodel.h"
#include "stateseditorview.h"
#include <QtCore/QDebug>
#include <QMessageBox>
enum {
debug = false
};
namespace QmlDesigner {
namespace Internal {
StatesEditorModel::StatesEditorModel(QObject *parent) :
QAbstractListModel(parent),
m_updateCounter(0)
{
QHash<int, QByteArray> roleNames;
roleNames.insert(StateNameRole, "stateName");
roleNames.insert(StateImageSourceRole, "stateImageSource");
setRoleNames(roleNames);
}
int StatesEditorModel::count() const
{
return m_stateNames.count();
}
int StatesEditorModel::rowCount(const QModelIndex &parent) const
{
if (parent.isValid())
return 0;
return m_stateNames.count();
}
QVariant StatesEditorModel::data(const QModelIndex &index, int role) const
{
if (index.parent().isValid() || index.column() != 0)
return QVariant();
QVariant result;
switch (role) {
case StateNameRole: {
if (index.row()==0)
result = QString(tr("base state", "Implicit default state"));
else
result = m_stateNames.at(index.row());
break;
}
case StateImageSourceRole: {
if (!m_statesView.isNull())
return QString("image://qmldesigner_stateseditor/%1-%2").arg(index.row()).arg(m_updateCounter);
break;
}
}
return result;
}
void StatesEditorModel::insertState(int i, const QString &name)
{
beginInsertRows(QModelIndex(), i, i);
m_stateNames.insert(i, name);
endInsertRows();
emit dataChanged(createIndex(i, 0), createIndex(i, 0));
emit countChanged();
}
void StatesEditorModel::removeState(int i)
{
beginRemoveRows(QModelIndex(), i, i);
m_stateNames.removeAt(i);
endRemoveRows();
emit dataChanged(createIndex(i, 0), createIndex(i, 0));
emit countChanged();
}
void StatesEditorModel::renameState(int i, const QString &newName)
{
Q_ASSERT(i > 0 && i < m_stateNames.count());
if (m_stateNames[i] != newName) {
if (m_stateNames.contains(newName) || newName.isEmpty()) {
QMessageBox::warning(0, tr("Invalid state name"),
newName.isEmpty() ?
tr("The empty string as a name is reserved for the base state.") :
tr("Name already used in another state"));
} else {
m_stateNames.replace(i, newName);
m_statesView->renameState(i,newName);
emit dataChanged(createIndex(i, 0), createIndex(i, 0));
}
}
}
void StatesEditorModel::updateState(int i)
{
Q_ASSERT(i >= 0 && i < m_stateNames.count());
// QML images with the same URL are always cached, so this changes the URL each
// time to ensure the image is loaded from the StatesImageProvider and not the
// cache.
// TODO: only increase imageId when the scene has changed so that we can load
// from the cache instead where possible.
if (++m_updateCounter == INT_MAX)
m_updateCounter = 0;
emit dataChanged(createIndex(i, 0), createIndex(i, 0));
}
void StatesEditorModel::setStatesEditorView(StatesEditorView *statesView)
{
m_statesView = statesView;
}
void StatesEditorModel::emitChangedToState(int n)
{
emit changedToState(n);
}
} // namespace Internal
} // namespace QmlDesigner
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