valentina/src/app/widgets/doubledelegate.cpp

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/************************************************************************
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**
** @file doubledelegate.cpp
** @author Roman Telezhynskyi <dismine(at)gmail.com>
** @date November 15, 2013
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**
** @brief
** @copyright
** This source code is part of the Valentine project, a pattern making
** program, whose allow create and modeling patterns of clothing.
** Copyright (C) 2013 Valentina project
** <https://bitbucket.org/dismine/valentina> All Rights Reserved.
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**
** Valentina is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
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**
** Valentina is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
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**
** You should have received a copy of the GNU General Public License
** along with Valentina. If not, see <http://www.gnu.org/licenses/>.
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**
*************************************************************************/
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#include "doubledelegate.h"
#include <QDoubleSpinBox>
#include "../options.h"
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief createEditorReturns the widget used to edit the item specified by index for editing. The parent widget and
* style option are used to control how the editor widget appears.
* @param parent parent widget.
* @param option item options.
* @param index index of data item.
* @return editor to be used for editing the data item.
*/
//cppcheck-suppress unusedFunction
DoubleSpinBoxDelegate::DoubleSpinBoxDelegate(QObject *parent): QItemDelegate(parent), lastValue(-10001.0)
{
//Little hack. Help save value in const method.
connect(this, &DoubleSpinBoxDelegate::NewLastValue, this, &DoubleSpinBoxDelegate::SetLastValue);
}
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QWidget *DoubleSpinBoxDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option,
const QModelIndex &index ) const
{
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Q_UNUSED(option);
Q_UNUSED(index);
emit NewLastValue(-10001.0);//Here need reset value to default because we begin work with new item
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QDoubleSpinBox *editor = new QDoubleSpinBox(parent);
editor->setMinimum(-10000.0);
editor->setMaximum(10000.0);
connect(editor, &QDoubleSpinBox::editingFinished, this, &DoubleSpinBoxDelegate::commitAndCloseEditor);
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return editor;
}
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//---------------------------------------------------------------------------------------------------------------------
/**
* @brief setEditorData sets the data to be displayed and edited by the editor from the data model item specified by
* the model index.
* @param editor editor.
* @param index index of data item.
*/
//cppcheck-suppress unusedFunction
void DoubleSpinBoxDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
{
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qreal value = index.model()->data(index, Qt::EditRole).toDouble();
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QDoubleSpinBox *spinBox = qobject_cast<QDoubleSpinBox*>(editor);
SCASSERT(spinBox != nullptr);
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spinBox->setValue(value);
}
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//---------------------------------------------------------------------------------------------------------------------
/**
* @brief setModelData gets data from the editor widget and stores it in the specified model at the item index.
* @param editor editor.
* @param model model.
* @param index index of data item.
*/
//cppcheck-suppress unusedFunction
void DoubleSpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
{
QDoubleSpinBox *spinBox = qobject_cast<QDoubleSpinBox*>(editor);
SCASSERT(spinBox != nullptr);
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spinBox->interpretText();
qreal value = spinBox->value();
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model->setData(index, value, Qt::EditRole);
}
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//---------------------------------------------------------------------------------------------------------------------
/**
* @brief updateEditorGeometry updates the editor for the item specified by index according to the style option
* given.
* @param editor editor.
* @param option item options.
* @param index index of data item.
*/
//cppcheck-suppress unusedFunction
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void DoubleSpinBoxDelegate::updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
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Q_UNUSED(index)
editor->setGeometry(option.rect);
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief commitAndCloseEditor commit value if changed.
*/
void DoubleSpinBoxDelegate::commitAndCloseEditor()
{
QDoubleSpinBox *spinBox = qobject_cast<QDoubleSpinBox*>(sender());
SCASSERT(spinBox != nullptr);
qreal value = spinBox->value();
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if (qFuzzyCompare ( lastValue, value ) == false)
{
lastValue = value;
emit commitData(spinBox);
}
emit closeEditor(spinBox);
}
//---------------------------------------------------------------------------------------------------------------------
void DoubleSpinBoxDelegate::SetLastValue(const qreal &newLastValue)
{
lastValue = newLastValue;
}