browseritemdelegate.cpp

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/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, see <http://www.gnu.org/licenses/>
 */

#include "uavobjectbrowserwidget.h"
#include "browseritemdelegate.h"
#include "fieldtreeitem.h"

BrowserItemDelegate::BrowserItemDelegate(TreeSortFilterProxyModel *proxyModel, QObject *parent)
    : QStyledItemDelegate(parent)
{
    this->proxyModel = proxyModel;
}

QWidget *BrowserItemDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option,
                                           const QModelIndex &proxyIndex) const
{
    Q_UNUSED(option)
    QModelIndex index = proxyModel->mapToSource(proxyIndex);
    FieldTreeItem *item = static_cast<FieldTreeItem *>(index.internalPointer());
    QWidget *editor = item->createEditor(parent);
    Q_ASSERT(editor);
    return editor;
}

bool BrowserItemDelegate::eventFilter(QObject *object, QEvent *event)
{
    QComboBox *comboBox = dynamic_cast<QComboBox *>(object);
    if (comboBox) {
        if (event->type() == QEvent::MouseButtonRelease) {
            comboBox->showPopup();
            return true;
        }
    }

    return QStyledItemDelegate::eventFilter(object, event);
}

void BrowserItemDelegate::setEditorData(QWidget *editor, const QModelIndex &proxyIndex) const
{
    QModelIndex index = proxyModel->mapToSource(proxyIndex);
    FieldTreeItem *item = static_cast<FieldTreeItem *>(index.internalPointer());
    QVariant value = proxyIndex.model()->data(proxyIndex, Qt::EditRole);
    item->setEditorValue(editor, value);
}

void BrowserItemDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
                                       const QModelIndex &proxyIndex) const
{
    QModelIndex index = proxyModel->mapToSource(proxyIndex);
    FieldTreeItem *item = static_cast<FieldTreeItem *>(index.internalPointer());
    QVariant value = item->getEditorValue(editor);
    bool ret = model->setData(proxyIndex, value, Qt::EditRole);
    Q_ASSERT(ret);
}

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

QSize BrowserItemDelegate::sizeHint(const QStyleOptionViewItem &option,
                                    const QModelIndex &index) const
{
    Q_UNUSED(option);
    Q_UNUSED(index);
    return QSpinBox().sizeHint();
}