datedelegate.cpp

Linux窗口程序设计,Qt4精彩实例分析,以循序渐进的方式介绍Qt4开发及其实例子,第一部分

#include "datedelegate.h"

DateDelegate::DateDelegate(QObject *parent)
    : QItemDelegate(parent)
{
}

QWidget *DateDelegate::createEditor(QWidget *parent,
    const QStyleOptionViewItem &/* option */,
    const QModelIndex &/* index */) const
{
    QDateTimeEdit *editor = new QDateTimeEdit(parent);
    editor->setDisplayFormat("yyyy-MM-dd");
    editor->setCalendarPopup(true);
    editor->installEventFilter(const_cast<DateDelegate*>(this));

    return editor;
}

void DateDelegate::setEditorData(QWidget *editor,
                                     const QModelIndex &index) const
{
    QString dateStr = index.model()->data(index).toString();
    QDate date = QDate::fromString(dateStr,Qt::ISODate);

    QDateTimeEdit *edit = static_cast<QDateTimeEdit*>(editor);
    edit->setDate(date);
}

void DateDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
                                    const QModelIndex &index) const
{
    QDateTimeEdit *edit = static_cast<QDateTimeEdit*>(editor);
    QDate date = edit->date();

    model->setData(index, QVariant(date.toString(Qt::ISODate)));
}

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