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Diffstat (limited to 'examples/widgets/itemviews/spinboxdelegate/delegate.cpp')
-rw-r--r-- | examples/widgets/itemviews/spinboxdelegate/delegate.cpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/examples/widgets/itemviews/spinboxdelegate/delegate.cpp b/examples/widgets/itemviews/spinboxdelegate/delegate.cpp new file mode 100644 index 0000000000..2967b6ae38 --- /dev/null +++ b/examples/widgets/itemviews/spinboxdelegate/delegate.cpp @@ -0,0 +1,102 @@ +/**************************************************************************** +** +** 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/* + delegate.cpp + + A delegate that allows the user to change integer values from the model + using a spin box widget. +*/ + +#include <QtWidgets> + +#include "delegate.h" + + +//! [0] +SpinBoxDelegate::SpinBoxDelegate(QObject *parent) + : QItemDelegate(parent) +{ +} +//! [0] + +//! [1] +QWidget *SpinBoxDelegate::createEditor(QWidget *parent, + const QStyleOptionViewItem &/* option */, + const QModelIndex &/* index */) const +{ + QSpinBox *editor = new QSpinBox(parent); + editor->setMinimum(0); + editor->setMaximum(100); + + return editor; +} +//! [1] + +//! [2] +void SpinBoxDelegate::setEditorData(QWidget *editor, + const QModelIndex &index) const +{ + int value = index.model()->data(index, Qt::EditRole).toInt(); + + QSpinBox *spinBox = static_cast<QSpinBox*>(editor); + spinBox->setValue(value); +} +//! [2] + +//! [3] +void SpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, + const QModelIndex &index) const +{ + QSpinBox *spinBox = static_cast<QSpinBox*>(editor); + spinBox->interpretText(); + int value = spinBox->value(); + + model->setData(index, value, Qt::EditRole); +} +//! [3] + +//! [4] +void SpinBoxDelegate::updateEditorGeometry(QWidget *editor, + const QStyleOptionViewItem &option, const QModelIndex &/* index */) const +{ + editor->setGeometry(option.rect); +} +//! [4] |