94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/* numeric_value_chooser_delegate.cpp
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* Delegate to select a numeric value for a treeview entry
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <ui/qt/models/numeric_value_chooser_delegate.h>
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#include <QStyledItemDelegate>
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#include <QSpinBox>
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NumericValueChooserDelegate::NumericValueChooserDelegate(int min, int max, QObject *parent)
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: QStyledItemDelegate(parent)
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{
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_min = min;
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_max = max;
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_default = min;
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}
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NumericValueChooserDelegate::~NumericValueChooserDelegate()
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{
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}
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void NumericValueChooserDelegate::setMinMaxRange(int min, int max)
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{
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_min = qMin(min, max);
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_max = qMax(min, max);
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/* ensure, that the default value is within the new min<->max */
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_default = qMin(_max, qMax(_min, _default));
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_defReturn = QVariant::fromValue(_default);
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}
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void NumericValueChooserDelegate::setDefaultValue(int defValue, QVariant defaultReturn)
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{
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/* ensure, that the new default value is within min<->max */
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_default = qMin(_max, qMax(_min, defValue));
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_defReturn = defaultReturn;
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}
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QWidget* NumericValueChooserDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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if (!index.isValid()) {
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return QStyledItemDelegate::createEditor(parent, option, index);
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}
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QSpinBox * editor = new QSpinBox(parent);
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editor->setMinimum(_min);
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editor->setMaximum(_max);
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editor->setWrapping(true);
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connect(editor, static_cast<void (QSpinBox::*)(int)>(&QSpinBox::valueChanged), this,
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&NumericValueChooserDelegate::onValueChanged);
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return editor;
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}
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void NumericValueChooserDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
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{
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if (index.isValid())
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{
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bool canConvert = false;
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int val = index.data().toInt(&canConvert);
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if (! canConvert)
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val = _default;
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QSpinBox * spinBox = qobject_cast<QSpinBox *>(editor);
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spinBox->setValue(val);
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}
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else
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QStyledItemDelegate::setEditorData(editor, index);
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}
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void NumericValueChooserDelegate::setModelData(QWidget *editor, QAbstractItemModel * model, const QModelIndex &index) const
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{
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if (index.isValid()) {
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QSpinBox * spinBox = qobject_cast<QSpinBox *>(editor);
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model->setData(index, _default == spinBox->value() ? _defReturn : QVariant::fromValue(spinBox->value()));
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} else {
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QStyledItemDelegate::setModelData(editor, model, index);
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}
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}
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void NumericValueChooserDelegate::onValueChanged(int)
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{
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QSpinBox * spinBox = qobject_cast<QSpinBox *>(sender());
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emit commitData(spinBox);
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}
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