QSpinBox 的用法

#include "delegate.h"

#include <QSpinBox>

SpinBoxDelegate::SpinBoxDelegate(QObject *parent)
    : QStyledItemDelegate(parent)
{
}

QWidget *SpinBoxDelegate::createEditor(QWidget *parent,
const QStyleOptionViewItem &/* option */,
const QModelIndex &/* index */) const
{
QSpinBox *editor = new QSpinBox(parent);
editor->setFrame(false);
editor->setMinimum(0);
editor->setMaximum(100);

return editor;
}
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);
}

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);
}

void SpinBoxDelegate::updateEditorGeometry(QWidget *editor,
const QStyleOptionViewItem &option, const QModelIndex &/* index */) const
{
editor->setGeometry(option.rect);
}