1 files changed, 181 insertions, 0 deletions
diff --git a/examples/widgets/itemviews/editabletreemodel/mainwindow.cpp b/examples/widgets/itemviews/editabletreemodel/mainwindow.cpp
new file mode 100644
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+++ b/examples/widgets/itemviews/editabletreemodel/mainwindow.cpp
@@ -0,0 +1,181 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtWidgets>
+
+#include "mainwindow.h"
+#include "treemodel.h"
+
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+{
+    setupUi(this);
+
+
+    QStringList headers;
+    headers << tr("Title") << tr("Description");
+
+    QFile file(":/default.txt");
+    file.open(QIODevice::ReadOnly);
+    TreeModel *model = new TreeModel(headers, file.readAll());
+    file.close();
+
+    view->setModel(model);
+    for (int column = 0; column < model->columnCount(); ++column)
+        view->resizeColumnToContents(column);
+
+    connect(exitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
+
+    connect(view->selectionModel(),
+            SIGNAL(selectionChanged(const QItemSelection &,
+                                    const QItemSelection &)),
+            this, SLOT(updateActions()));
+
+    connect(actionsMenu, SIGNAL(aboutToShow()), this, SLOT(updateActions()));
+    connect(insertRowAction, SIGNAL(triggered()), this, SLOT(insertRow()));
+    connect(insertColumnAction, SIGNAL(triggered()), this, SLOT(insertColumn()));
+    connect(removeRowAction, SIGNAL(triggered()), this, SLOT(removeRow()));
+    connect(removeColumnAction, SIGNAL(triggered()), this, SLOT(removeColumn()));
+    connect(insertChildAction, SIGNAL(triggered()), this, SLOT(insertChild()));
+
+    updateActions();
+}
+
+void MainWindow::insertChild()
+{
+    QModelIndex index = view->selectionModel()->currentIndex();
+    QAbstractItemModel *model = view->model();
+
+    if (model->columnCount(index) == 0) {
+        if (!model->insertColumn(0, index))
+            return;
+    }
+
+    if (!model->insertRow(0, index))
+        return;
+
+    for (int column = 0; column < model->columnCount(index); ++column) {
+        QModelIndex child = model->index(0, column, index);
+        model->setData(child, QVariant("[No data]"), Qt::EditRole);
+        if (!model->headerData(column, Qt::Horizontal).isValid())
+            model->setHeaderData(column, Qt::Horizontal, QVariant("[No header]"),
+                                 Qt::EditRole);
+    }
+
+    view->selectionModel()->setCurrentIndex(model->index(0, 0, index),
+                                            QItemSelectionModel::ClearAndSelect);
+    updateActions();
+}
+
+bool MainWindow::insertColumn(const QModelIndex &parent)
+{
+    QAbstractItemModel *model = view->model();
+    int column = view->selectionModel()->currentIndex().column();
+
+    // Insert a column in the parent item.
+    bool changed = model->insertColumn(column + 1, parent);
+    if (changed)
+        model->setHeaderData(column + 1, Qt::Horizontal, QVariant("[No header]"),
+                             Qt::EditRole);
+
+    updateActions();
+
+    return changed;
+}
+
+void MainWindow::insertRow()
+{
+    QModelIndex index = view->selectionModel()->currentIndex();
+    QAbstractItemModel *model = view->model();
+
+    if (!model->insertRow(index.row()+1, index.parent()))
+        return;
+
+    updateActions();
+
+    for (int column = 0; column < model->columnCount(index.parent()); ++column) {
+        QModelIndex child = model->index(index.row()+1, column, index.parent());
+        model->setData(child, QVariant("[No data]"), Qt::EditRole);
+    }
+}
+
+bool MainWindow::removeColumn(const QModelIndex &parent)
+{
+    QAbstractItemModel *model = view->model();
+    int column = view->selectionModel()->currentIndex().column();
+
+    // Insert columns in each child of the parent item.
+    bool changed = model->removeColumn(column, parent);
+
+    if (!parent.isValid() && changed)
+        updateActions();
+
+    return changed;
+}
+
+void MainWindow::removeRow()
+{
+    QModelIndex index = view->selectionModel()->currentIndex();
+    QAbstractItemModel *model = view->model();
+    if (model->removeRow(index.row(), index.parent()))
+        updateActions();
+}
+
+void MainWindow::updateActions()
+{
+    bool hasSelection = !view->selectionModel()->selection().isEmpty();
+    removeRowAction->setEnabled(hasSelection);
+    removeColumnAction->setEnabled(hasSelection);
+
+    bool hasCurrent = view->selectionModel()->currentIndex().isValid();
+    insertRowAction->setEnabled(hasCurrent);
+    insertColumnAction->setEnabled(hasCurrent);
+
+    if (hasCurrent) {
+        view->closePersistentEditor(view->selectionModel()->currentIndex());
+
+        int row = view->selectionModel()->currentIndex().row();
+        int column = view->selectionModel()->currentIndex().column();
+        if (view->selectionModel()->currentIndex().parent().isValid())
+            statusBar()->showMessage(tr("Position: (%1,%2)").arg(row).arg(column));
+        else
+            statusBar()->showMessage(tr("Position: (%1,%2) in top level").arg(row).arg(column));
+    }
+}