55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
/*==============================================================================
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** Copyright (C) 2024-2027 WingSummer
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**
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** This program is free software: you can redistribute it and/or modify it under
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** the terms of the GNU Affero General Public License as published by the Free
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** Software Foundation, version 3.
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**
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** This program is distributed in the hope that it will be useful, but WITHOUT
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** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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** FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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** details.
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**
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** You should have received a copy of the GNU Affero General Public License
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** along with this program. If not, see <https://www.gnu.org/licenses/>.
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** =============================================================================
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*/
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#include "qtableviewext.h"
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#include <QScrollBar>
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QTableViewExt::QTableViewExt(QWidget *parent) : QTableView(parent) {
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connect(verticalScrollBar(), &QScrollBar::rangeChanged, this, [=] {
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auto model = this->model();
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if (model) {
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auto barv = model->property("barv").toInt();
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auto selv = model->property("selv").value<QItemSelection>();
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verticalScrollBar()->setValue(barv);
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selectionModel()->select(selv, QItemSelectionModel::SelectCurrent);
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}
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});
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}
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void QTableViewExt::setModel(QAbstractItemModel *model) {
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auto vbar = verticalScrollBar();
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auto barv = vbar->value();
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auto old = this->model();
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if (old) {
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old->setProperty("barv", barv);
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auto selmod = this->selectionModel();
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auto selv = selmod->selection();
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old->setProperty("selv", QVariant::fromValue(selv));
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}
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// reset to default range without signal emited
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vbar->blockSignals(true);
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vbar->setRange(0, 0);
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vbar->blockSignals(false);
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QTableView::setModel(model);
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Q_EMIT modelChanged();
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}
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