2b75c156b6
Change-Id: I6441ff931dbd33b698d762e6f6784898f3f60fe7 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
317 lines
9.8 KiB
C++
317 lines
9.8 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2015 The Qt Company Ltd.
|
|
** Contact: http://www.qt.io/licensing/
|
|
**
|
|
** 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 The Qt Company Ltd 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 "variantdelegate.h"
|
|
|
|
VariantDelegate::VariantDelegate(QObject *parent)
|
|
: QItemDelegate(parent)
|
|
{
|
|
boolExp.setPattern("true|false");
|
|
boolExp.setCaseSensitivity(Qt::CaseInsensitive);
|
|
|
|
byteArrayExp.setPattern("[\\x00-\\xff]*");
|
|
charExp.setPattern(".");
|
|
colorExp.setPattern("\\(([0-9]*),([0-9]*),([0-9]*),([0-9]*)\\)");
|
|
doubleExp.setPattern("");
|
|
pointExp.setPattern("\\((-?[0-9]*),(-?[0-9]*)\\)");
|
|
rectExp.setPattern("\\((-?[0-9]*),(-?[0-9]*),(-?[0-9]*),(-?[0-9]*)\\)");
|
|
signedIntegerExp.setPattern("-?[0-9]*");
|
|
sizeExp = pointExp;
|
|
unsignedIntegerExp.setPattern("[0-9]*");
|
|
|
|
dateExp.setPattern("([0-9]{,4})-([0-9]{,2})-([0-9]{,2})");
|
|
timeExp.setPattern("([0-9]{,2}):([0-9]{,2}):([0-9]{,2})");
|
|
dateTimeExp.setPattern(dateExp.pattern() + "T" + timeExp.pattern());
|
|
}
|
|
|
|
void VariantDelegate::paint(QPainter *painter,
|
|
const QStyleOptionViewItem &option,
|
|
const QModelIndex &index) const
|
|
{
|
|
if (index.column() == 2) {
|
|
QVariant value = index.model()->data(index, Qt::UserRole);
|
|
if (!isSupportedType(value.type())) {
|
|
QStyleOptionViewItem myOption = option;
|
|
myOption.state &= ~QStyle::State_Enabled;
|
|
QItemDelegate::paint(painter, myOption, index);
|
|
return;
|
|
}
|
|
}
|
|
|
|
QItemDelegate::paint(painter, option, index);
|
|
}
|
|
|
|
QWidget *VariantDelegate::createEditor(QWidget *parent,
|
|
const QStyleOptionViewItem & /* option */,
|
|
const QModelIndex &index) const
|
|
{
|
|
if (index.column() != 2)
|
|
return 0;
|
|
|
|
QVariant originalValue = index.model()->data(index, Qt::UserRole);
|
|
if (!isSupportedType(originalValue.type()))
|
|
return 0;
|
|
|
|
QLineEdit *lineEdit = new QLineEdit(parent);
|
|
lineEdit->setFrame(false);
|
|
|
|
QRegExp regExp;
|
|
|
|
switch (originalValue.type()) {
|
|
case QVariant::Bool:
|
|
regExp = boolExp;
|
|
break;
|
|
case QVariant::ByteArray:
|
|
regExp = byteArrayExp;
|
|
break;
|
|
case QVariant::Char:
|
|
regExp = charExp;
|
|
break;
|
|
case QVariant::Color:
|
|
regExp = colorExp;
|
|
break;
|
|
case QVariant::Date:
|
|
regExp = dateExp;
|
|
break;
|
|
case QVariant::DateTime:
|
|
regExp = dateTimeExp;
|
|
break;
|
|
case QVariant::Double:
|
|
regExp = doubleExp;
|
|
break;
|
|
case QVariant::Int:
|
|
case QVariant::LongLong:
|
|
regExp = signedIntegerExp;
|
|
break;
|
|
case QVariant::Point:
|
|
regExp = pointExp;
|
|
break;
|
|
case QVariant::Rect:
|
|
regExp = rectExp;
|
|
break;
|
|
case QVariant::Size:
|
|
regExp = sizeExp;
|
|
break;
|
|
case QVariant::Time:
|
|
regExp = timeExp;
|
|
break;
|
|
case QVariant::UInt:
|
|
case QVariant::ULongLong:
|
|
regExp = unsignedIntegerExp;
|
|
break;
|
|
default:
|
|
;
|
|
}
|
|
|
|
if (!regExp.isEmpty()) {
|
|
QValidator *validator = new QRegExpValidator(regExp, lineEdit);
|
|
lineEdit->setValidator(validator);
|
|
}
|
|
|
|
return lineEdit;
|
|
}
|
|
|
|
void VariantDelegate::setEditorData(QWidget *editor,
|
|
const QModelIndex &index) const
|
|
{
|
|
QVariant value = index.model()->data(index, Qt::UserRole);
|
|
if (QLineEdit *lineEdit = qobject_cast<QLineEdit *>(editor))
|
|
lineEdit->setText(displayText(value));
|
|
}
|
|
|
|
void VariantDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
|
|
const QModelIndex &index) const
|
|
{
|
|
QLineEdit *lineEdit = qobject_cast<QLineEdit *>(editor);
|
|
if (!lineEdit->isModified())
|
|
return;
|
|
|
|
QString text = lineEdit->text();
|
|
const QValidator *validator = lineEdit->validator();
|
|
if (validator) {
|
|
int pos;
|
|
if (validator->validate(text, pos) != QValidator::Acceptable)
|
|
return;
|
|
}
|
|
|
|
QVariant originalValue = index.model()->data(index, Qt::UserRole);
|
|
QVariant value;
|
|
|
|
switch (originalValue.type()) {
|
|
case QVariant::Char:
|
|
value = text.at(0);
|
|
break;
|
|
case QVariant::Color:
|
|
colorExp.exactMatch(text);
|
|
value = QColor(qMin(colorExp.cap(1).toInt(), 255),
|
|
qMin(colorExp.cap(2).toInt(), 255),
|
|
qMin(colorExp.cap(3).toInt(), 255),
|
|
qMin(colorExp.cap(4).toInt(), 255));
|
|
break;
|
|
case QVariant::Date:
|
|
{
|
|
QDate date = QDate::fromString(text, Qt::ISODate);
|
|
if (!date.isValid())
|
|
return;
|
|
value = date;
|
|
}
|
|
break;
|
|
case QVariant::DateTime:
|
|
{
|
|
QDateTime dateTime = QDateTime::fromString(text, Qt::ISODate);
|
|
if (!dateTime.isValid())
|
|
return;
|
|
value = dateTime;
|
|
}
|
|
break;
|
|
case QVariant::Point:
|
|
pointExp.exactMatch(text);
|
|
value = QPoint(pointExp.cap(1).toInt(), pointExp.cap(2).toInt());
|
|
break;
|
|
case QVariant::Rect:
|
|
rectExp.exactMatch(text);
|
|
value = QRect(rectExp.cap(1).toInt(), rectExp.cap(2).toInt(),
|
|
rectExp.cap(3).toInt(), rectExp.cap(4).toInt());
|
|
break;
|
|
case QVariant::Size:
|
|
sizeExp.exactMatch(text);
|
|
value = QSize(sizeExp.cap(1).toInt(), sizeExp.cap(2).toInt());
|
|
break;
|
|
case QVariant::StringList:
|
|
value = text.split(",");
|
|
break;
|
|
case QVariant::Time:
|
|
{
|
|
QTime time = QTime::fromString(text, Qt::ISODate);
|
|
if (!time.isValid())
|
|
return;
|
|
value = time;
|
|
}
|
|
break;
|
|
default:
|
|
value = text;
|
|
value.convert(originalValue.type());
|
|
}
|
|
|
|
model->setData(index, displayText(value), Qt::DisplayRole);
|
|
model->setData(index, value, Qt::UserRole);
|
|
}
|
|
|
|
bool VariantDelegate::isSupportedType(QVariant::Type type)
|
|
{
|
|
switch (type) {
|
|
case QVariant::Bool:
|
|
case QVariant::ByteArray:
|
|
case QVariant::Char:
|
|
case QVariant::Color:
|
|
case QVariant::Date:
|
|
case QVariant::DateTime:
|
|
case QVariant::Double:
|
|
case QVariant::Int:
|
|
case QVariant::LongLong:
|
|
case QVariant::Point:
|
|
case QVariant::Rect:
|
|
case QVariant::Size:
|
|
case QVariant::String:
|
|
case QVariant::StringList:
|
|
case QVariant::Time:
|
|
case QVariant::UInt:
|
|
case QVariant::ULongLong:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
QString VariantDelegate::displayText(const QVariant &value)
|
|
{
|
|
switch (value.type()) {
|
|
case QVariant::Bool:
|
|
case QVariant::ByteArray:
|
|
case QVariant::Char:
|
|
case QVariant::Double:
|
|
case QVariant::Int:
|
|
case QVariant::LongLong:
|
|
case QVariant::String:
|
|
case QVariant::UInt:
|
|
case QVariant::ULongLong:
|
|
return value.toString();
|
|
case QVariant::Color:
|
|
{
|
|
QColor color = qvariant_cast<QColor>(value);
|
|
return QString("(%1,%2,%3,%4)")
|
|
.arg(color.red()).arg(color.green())
|
|
.arg(color.blue()).arg(color.alpha());
|
|
}
|
|
case QVariant::Date:
|
|
return value.toDate().toString(Qt::ISODate);
|
|
case QVariant::DateTime:
|
|
return value.toDateTime().toString(Qt::ISODate);
|
|
case QVariant::Invalid:
|
|
return "<Invalid>";
|
|
case QVariant::Point:
|
|
{
|
|
QPoint point = value.toPoint();
|
|
return QString("(%1,%2)").arg(point.x()).arg(point.y());
|
|
}
|
|
case QVariant::Rect:
|
|
{
|
|
QRect rect = value.toRect();
|
|
return QString("(%1,%2,%3,%4)")
|
|
.arg(rect.x()).arg(rect.y())
|
|
.arg(rect.width()).arg(rect.height());
|
|
}
|
|
case QVariant::Size:
|
|
{
|
|
QSize size = value.toSize();
|
|
return QString("(%1,%2)").arg(size.width()).arg(size.height());
|
|
}
|
|
case QVariant::StringList:
|
|
return value.toStringList().join(',');
|
|
case QVariant::Time:
|
|
return value.toTime().toString(Qt::ISODate);
|
|
default:
|
|
break;
|
|
}
|
|
return QString("<%1>").arg(value.typeName());
|
|
}
|