2011-04-27 10:05:43 +00:00
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/****************************************************************************
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**
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2016-01-22 12:24:00 +00:00
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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2011-04-27 10:05:43 +00:00
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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2016-01-22 12:24:00 +00:00
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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2011-04-27 10:05:43 +00:00
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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2015-02-13 11:15:33 +00:00
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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2012-09-19 12:28:29 +00:00
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**
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2011-04-27 10:05:43 +00:00
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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2012-01-24 06:17:24 +00:00
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**
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2011-04-27 10:05:43 +00:00
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "mainwindow.h"
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#include "treemodel.h"
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2012-11-22 12:40:51 +00:00
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#include <QFile>
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2011-04-27 10:05:43 +00:00
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MainWindow::MainWindow(QWidget *parent)
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: QMainWindow(parent)
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{
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setupUi(this);
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2018-11-23 18:45:56 +00:00
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const QStringList headers({tr("Title"), tr("Description")});
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2011-04-27 10:05:43 +00:00
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QFile file(":/default.txt");
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file.open(QIODevice::ReadOnly);
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TreeModel *model = new TreeModel(headers, file.readAll());
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file.close();
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view->setModel(model);
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for (int column = 0; column < model->columnCount(); ++column)
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view->resizeColumnToContents(column);
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2015-07-31 11:53:29 +00:00
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connect(exitAction, &QAction::triggered, qApp, &QCoreApplication::quit);
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2011-04-27 10:05:43 +00:00
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2015-07-31 11:53:29 +00:00
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connect(view->selectionModel(), &QItemSelectionModel::selectionChanged,
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this, &MainWindow::updateActions);
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2011-04-27 10:05:43 +00:00
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2015-07-31 11:53:29 +00:00
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connect(actionsMenu, &QMenu::aboutToShow, this, &MainWindow::updateActions);
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connect(insertRowAction, &QAction::triggered, this, &MainWindow::insertRow);
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connect(insertColumnAction, &QAction::triggered, this, &MainWindow::insertColumn);
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connect(removeRowAction, &QAction::triggered, this, &MainWindow::removeRow);
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connect(removeColumnAction, &QAction::triggered, this, &MainWindow::removeColumn);
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connect(insertChildAction, &QAction::triggered, this, &MainWindow::insertChild);
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2011-04-27 10:05:43 +00:00
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updateActions();
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}
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void MainWindow::insertChild()
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{
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2018-11-23 18:45:56 +00:00
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const QModelIndex index = view->selectionModel()->currentIndex();
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2011-04-27 10:05:43 +00:00
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QAbstractItemModel *model = view->model();
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if (model->columnCount(index) == 0) {
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if (!model->insertColumn(0, index))
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return;
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}
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if (!model->insertRow(0, index))
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return;
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for (int column = 0; column < model->columnCount(index); ++column) {
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2018-11-23 18:45:56 +00:00
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const QModelIndex child = model->index(0, column, index);
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model->setData(child, QVariant(tr("[No data]")), Qt::EditRole);
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2011-04-27 10:05:43 +00:00
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if (!model->headerData(column, Qt::Horizontal).isValid())
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2018-11-23 18:45:56 +00:00
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model->setHeaderData(column, Qt::Horizontal, QVariant(tr("[No header]")), Qt::EditRole);
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2011-04-27 10:05:43 +00:00
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}
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view->selectionModel()->setCurrentIndex(model->index(0, 0, index),
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QItemSelectionModel::ClearAndSelect);
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updateActions();
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}
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2015-07-31 11:53:29 +00:00
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bool MainWindow::insertColumn()
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2011-04-27 10:05:43 +00:00
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{
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QAbstractItemModel *model = view->model();
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int column = view->selectionModel()->currentIndex().column();
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// Insert a column in the parent item.
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2015-07-31 11:53:29 +00:00
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bool changed = model->insertColumn(column + 1);
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2011-04-27 10:05:43 +00:00
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if (changed)
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2012-11-22 12:40:51 +00:00
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model->setHeaderData(column + 1, Qt::Horizontal, QVariant("[No header]"), Qt::EditRole);
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2011-04-27 10:05:43 +00:00
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updateActions();
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return changed;
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}
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void MainWindow::insertRow()
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{
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2018-11-23 18:45:56 +00:00
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const QModelIndex index = view->selectionModel()->currentIndex();
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2011-04-27 10:05:43 +00:00
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QAbstractItemModel *model = view->model();
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if (!model->insertRow(index.row()+1, index.parent()))
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return;
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updateActions();
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for (int column = 0; column < model->columnCount(index.parent()); ++column) {
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2018-11-23 18:45:56 +00:00
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const QModelIndex child = model->index(index.row() + 1, column, index.parent());
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model->setData(child, QVariant(tr("[No data]")), Qt::EditRole);
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2011-04-27 10:05:43 +00:00
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}
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}
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2015-07-31 11:53:29 +00:00
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bool MainWindow::removeColumn()
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2011-04-27 10:05:43 +00:00
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{
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QAbstractItemModel *model = view->model();
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2018-11-23 18:45:56 +00:00
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const int column = view->selectionModel()->currentIndex().column();
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2011-04-27 10:05:43 +00:00
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// Insert columns in each child of the parent item.
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2018-11-23 18:45:56 +00:00
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const bool changed = model->removeColumn(column);
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2015-07-31 11:53:29 +00:00
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if (changed)
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2011-04-27 10:05:43 +00:00
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updateActions();
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return changed;
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}
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void MainWindow::removeRow()
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{
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2018-11-23 18:45:56 +00:00
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const QModelIndex index = view->selectionModel()->currentIndex();
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2011-04-27 10:05:43 +00:00
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QAbstractItemModel *model = view->model();
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if (model->removeRow(index.row(), index.parent()))
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updateActions();
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}
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void MainWindow::updateActions()
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{
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2018-11-23 18:45:56 +00:00
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const bool hasSelection = !view->selectionModel()->selection().isEmpty();
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2011-04-27 10:05:43 +00:00
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removeRowAction->setEnabled(hasSelection);
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removeColumnAction->setEnabled(hasSelection);
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2018-11-23 18:45:56 +00:00
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const bool hasCurrent = view->selectionModel()->currentIndex().isValid();
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2011-04-27 10:05:43 +00:00
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insertRowAction->setEnabled(hasCurrent);
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insertColumnAction->setEnabled(hasCurrent);
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if (hasCurrent) {
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view->closePersistentEditor(view->selectionModel()->currentIndex());
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2018-11-23 18:45:56 +00:00
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const int row = view->selectionModel()->currentIndex().row();
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const int column = view->selectionModel()->currentIndex().column();
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2011-04-27 10:05:43 +00:00
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if (view->selectionModel()->currentIndex().parent().isValid())
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statusBar()->showMessage(tr("Position: (%1,%2)").arg(row).arg(column));
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else
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statusBar()->showMessage(tr("Position: (%1,%2) in top level").arg(row).arg(column));
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}
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}
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