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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "classlist.h"
#include <utils/qtcassert.h>
#include <QKeyEvent>
#include <QMessageBox>
#include <QStandardItemModel>
#include <QStandardItem>
#include <QLabel>
#include <QToolButton>
#include <QDebug>
#include <QRegExp>
namespace Qt4ProjectManager {
namespace Internal {
// ClassModel: Validates the class name in setData() and
// refuses placeholders and invalid characters.
class ClassModel : public QStandardItemModel {
public:
explicit ClassModel(QObject *parent = 0);
virtual bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
void appendPlaceHolder() { appendClass(m_newClassPlaceHolder); }
QModelIndex placeHolderIndex() const;
QString newClassPlaceHolder() const { return m_newClassPlaceHolder; }
private:
void appendClass(const QString &);
QRegExp m_validator;
const QString m_newClassPlaceHolder;
};
ClassModel::ClassModel(QObject *parent) :
QStandardItemModel(0, 1, parent),
m_validator(QLatin1String("^[a-zA-Z][a-zA-Z0-9_]*$")),
m_newClassPlaceHolder(ClassList::tr("<New class>"))
{
QTC_ASSERT(m_validator.isValid(), return);
appendPlaceHolder();
}
void ClassModel::appendClass(const QString &c)
{
QStandardItem *item = new QStandardItem(c);
item->setFlags(Qt::ItemIsEnabled|Qt::ItemIsEditable);
appendRow(item);
}
bool ClassModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
if (role == Qt::EditRole && !m_validator.exactMatch(value.toString()))
return false;
return QStandardItemModel::setData(index, value, role);
}
QModelIndex ClassModel::placeHolderIndex() const
{
return index(rowCount() - 1, 0);
}
// --------------- ClassList
ClassList::ClassList(QWidget *parent) :
QListView(parent),
m_model(new ClassModel)
{
setModel(m_model);
connect(itemDelegate(), SIGNAL(closeEditor(QWidget*,QAbstractItemDelegate::EndEditHint)), SLOT(classEdited()));
connect(selectionModel(), SIGNAL(currentRowChanged(QModelIndex,QModelIndex)),
this, SLOT(slotCurrentRowChanged(QModelIndex,QModelIndex)));
}
void ClassList::startEditingNewClassItem()
{
// Start editing the 'new class' item.
setFocus();
const QModelIndex index = m_model->placeHolderIndex();
setCurrentIndex(index);
edit(index);
}
QString ClassList::className(int row) const
{
return m_model->item(row, 0)->text();
}
void ClassList::classEdited()
{
const QModelIndex index = currentIndex();
QTC_ASSERT(index.isValid(), return);
const QString name = className(index.row());
if (index == m_model->placeHolderIndex()) {
// Real name class entered.
if (name != m_model->newClassPlaceHolder()) {
emit classAdded(name);
m_model->appendPlaceHolder();
}
} else {
emit classRenamed(index.row(), name);
}
}
void ClassList::removeCurrentClass()
{
const QModelIndex index = currentIndex();
if (!index.isValid() || index == m_model->placeHolderIndex())
return;
if (QMessageBox::question(this,
tr("Confirm Delete"),
tr("Delete class %1 from list?").arg(className(index.row())),
QMessageBox::Ok|QMessageBox::Cancel) != QMessageBox::Ok)
return;
// Delete row and set current on same item.
m_model->removeRows(index.row(), 1);
emit classDeleted(index.row());
setCurrentIndex(m_model->indexFromItem(m_model->item(index.row(), 0)));
}
void ClassList::keyPressEvent(QKeyEvent *event)
{
switch (event->key()) {
case Qt::Key_Delete:
removeCurrentClass();
break;
case Qt::Key_Insert:
startEditingNewClassItem();
break;
default:
QListView::keyPressEvent(event);
break;
}
}
void ClassList::slotCurrentRowChanged(const QModelIndex ¤t, const QModelIndex &)
{
emit currentRowChanged(current.row());
}
} // namespace Internal
} // namespace Qt4ProjectManager
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