qt5base-lts/examples/itemviews/spinboxdelegate/delegate.cpp

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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
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**
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** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
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** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
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** permission.
**
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/*
delegate.cpp
A delegate that allows the user to change integer values from the model
using a spin box widget.
*/
#include <QtWidgets>
#include "delegate.h"
//! [0]
SpinBoxDelegate::SpinBoxDelegate(QObject *parent)
: QItemDelegate(parent)
{
}
//! [0]
//! [1]
QWidget *SpinBoxDelegate::createEditor(QWidget *parent,
const QStyleOptionViewItem &/* option */,
const QModelIndex &/* index */) const
{
QSpinBox *editor = new QSpinBox(parent);
editor->setMinimum(0);
editor->setMaximum(100);
return editor;
}
//! [1]
//! [2]
void SpinBoxDelegate::setEditorData(QWidget *editor,
const QModelIndex &index) const
{
int value = index.model()->data(index, Qt::EditRole).toInt();
QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
spinBox->setValue(value);
}
//! [2]
//! [3]
void SpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
const QModelIndex &index) const
{
QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
spinBox->interpretText();
int value = spinBox->value();
model->setData(index, value, Qt::EditRole);
}
//! [3]
//! [4]
void SpinBoxDelegate::updateEditorGeometry(QWidget *editor,
const QStyleOptionViewItem &option, const QModelIndex &/* index */) const
{
editor->setGeometry(option.rect);
}
//! [4]