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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "classlist.h"
#include <utils/qtcassert.h>
#include <QKeyEvent>
#include <QMessageBox>
#include <QStandardItemModel>
#include <QStandardItem>
#include <QDebug>
#include <QRegularExpression>
namespace QmakeProjectManager {
namespace Internal {
// ClassModel: Validates the class name in setData() and
// refuses placeholders and invalid characters.
class ClassModel : public QStandardItemModel {
public:
explicit ClassModel(QObject *parent = nullptr);
bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override;
void appendPlaceHolder() { appendClass(m_newClassPlaceHolder); }
QModelIndex placeHolderIndex() const;
QString newClassPlaceHolder() const { return m_newClassPlaceHolder; }
private:
void appendClass(const QString &);
QRegularExpression 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)
{
auto *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.match(value.toString()).hasMatch())
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(), &QAbstractItemDelegate::closeEditor, this, &ClassList::classEdited);
connect(selectionModel(), &QItemSelectionModel::currentRowChanged,
this, &ClassList::slotCurrentRowChanged);
}
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_Backspace:
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 QmakeProjectManager
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