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Diffstat (limited to 'examples/widgets/tools/settingseditor/variantdelegate.cpp')
| -rw-r--r-- | examples/widgets/tools/settingseditor/variantdelegate.cpp | 424 |
1 files changed, 0 insertions, 424 deletions
diff --git a/examples/widgets/tools/settingseditor/variantdelegate.cpp b/examples/widgets/tools/settingseditor/variantdelegate.cpp deleted file mode 100644 index 24a236aeee..0000000000 --- a/examples/widgets/tools/settingseditor/variantdelegate.cpp +++ /dev/null @@ -1,424 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 "variantdelegate.h" - -#include <QCheckBox> -#include <QDateTime> -#include <QLineEdit> -#include <QSpinBox> -#include <QRegularExpressionValidator> -#include <QTextStream> - -#include <algorithm> - -static bool isPrintableChar(char c) -{ - return uchar(c) >= 32 && uchar(c) < 128; -} - -static bool isPrintable(const QByteArray &ba) -{ - return std::all_of(ba.cbegin(), ba.cend(), isPrintableChar); -} - -static QString byteArrayToString(const QByteArray &ba) -{ - if (isPrintable(ba)) - return QString::fromLatin1(ba); - QString result; - for (char c : ba) { - if (isPrintableChar(c)) { - if (c == '\\') - result += QLatin1Char(c); - result += QLatin1Char(c); - } else { - const uint uc = uchar(c); - result += "\\x"; - if (uc < 16) - result += '0'; - result += QString::number(uc, 16); - } - } - return result; -} - -TypeChecker::TypeChecker() -{ - boolExp.setPattern("^(true)|(false)$"); - boolExp.setPatternOptions(QRegularExpression::CaseInsensitiveOption); - Q_ASSERT(boolExp.isValid()); - - byteArrayExp.setPattern(R"RX(^[\x00-\xff]*$)RX"); - charExp.setPattern("^.$"); - Q_ASSERT(charExp.isValid()); - colorExp.setPattern(R"RX(^\(([0-9]*),([0-9]*),([0-9]*),([0-9]*)\)$)RX"); - Q_ASSERT(colorExp.isValid()); - doubleExp.setPattern(""); - pointExp.setPattern(R"RX(^\((-?[0-9]*),(-?[0-9]*)\)$)RX"); - Q_ASSERT(pointExp.isValid()); - rectExp.setPattern(R"RX(^\((-?[0-9]*),(-?[0-9]*),(-?[0-9]*),(-?[0-9]*)\)$)RX"); - Q_ASSERT(rectExp.isValid()); - signedIntegerExp.setPattern("^-?[0-9]*$"); - Q_ASSERT(signedIntegerExp.isValid()); - sizeExp = pointExp; - unsignedIntegerExp.setPattern("^[0-9]+$"); - Q_ASSERT(unsignedIntegerExp.isValid()); - - const QString datePattern = "([0-9]{,4})-([0-9]{,2})-([0-9]{,2})"; - dateExp.setPattern('^' + datePattern + '$'); - Q_ASSERT(dateExp.isValid()); - const QString timePattern = "([0-9]{,2}):([0-9]{,2}):([0-9]{,2})"; - timeExp.setPattern('^' + timePattern + '$'); - Q_ASSERT(timeExp.isValid()); - dateTimeExp.setPattern('^' + datePattern + 'T' + timePattern + '$'); - Q_ASSERT(dateTimeExp.isValid()); -} - -VariantDelegate::VariantDelegate(const QSharedPointer<TypeChecker> &typeChecker, - QObject *parent) - : QStyledItemDelegate(parent), - m_typeChecker(typeChecker) -{ -} - -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.userType())) { - QStyleOptionViewItem myOption = option; - myOption.state &= ~QStyle::State_Enabled; - QStyledItemDelegate::paint(painter, myOption, index); - return; - } - } - - QStyledItemDelegate::paint(painter, option, index); -} - -QWidget *VariantDelegate::createEditor(QWidget *parent, - const QStyleOptionViewItem & /* option */, - const QModelIndex &index) const -{ - if (index.column() != 2) - return nullptr; - - QVariant originalValue = index.model()->data(index, Qt::UserRole); - if (!isSupportedType(originalValue.userType())) - return nullptr; - - switch (originalValue.userType()) { - case QMetaType::Bool: - return new QCheckBox(parent); - break; - case QMetaType::Int: - case QMetaType::LongLong: { - auto spinBox = new QSpinBox(parent); - spinBox->setRange(-32767, 32767); - return spinBox; - } - case QMetaType::UInt: - case QMetaType::ULongLong: { - auto spinBox = new QSpinBox(parent); - spinBox->setRange(0, 63335); - return spinBox; - } - default: - break; - } - - QLineEdit *lineEdit = new QLineEdit(parent); - lineEdit->setFrame(false); - - QRegularExpression regExp; - - switch (originalValue.userType()) { - case QMetaType::Bool: - regExp = m_typeChecker->boolExp; - break; - case QMetaType::QByteArray: - regExp = m_typeChecker->byteArrayExp; - break; - case QMetaType::QChar: - regExp = m_typeChecker->charExp; - break; - case QMetaType::QColor: - regExp = m_typeChecker->colorExp; - break; - case QMetaType::QDate: - regExp = m_typeChecker->dateExp; - break; - case QMetaType::QDateTime: - regExp = m_typeChecker->dateTimeExp; - break; - case QMetaType::Double: - regExp = m_typeChecker->doubleExp; - break; - case QMetaType::Int: - case QMetaType::LongLong: - regExp = m_typeChecker->signedIntegerExp; - break; - case QMetaType::QPoint: - regExp = m_typeChecker->pointExp; - break; - case QMetaType::QRect: - regExp = m_typeChecker->rectExp; - break; - case QMetaType::QSize: - regExp = m_typeChecker->sizeExp; - break; - case QMetaType::QTime: - regExp = m_typeChecker->timeExp; - break; - case QMetaType::UInt: - case QMetaType::ULongLong: - regExp = m_typeChecker->unsignedIntegerExp; - break; - default: - break; - } - - if (regExp.isValid()) { - QValidator *validator = new QRegularExpressionValidator(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 (auto spinBox = qobject_cast<QSpinBox *>(editor)) { - const auto userType = value.userType(); - if (userType == QMetaType::UInt || userType == QMetaType::ULongLong) - spinBox->setValue(value.toUInt()); - else - spinBox->setValue(value.toInt()); - } else if (auto checkBox = qobject_cast<QCheckBox *>(editor)) { - checkBox->setChecked(value.toBool()); - } else if (QLineEdit *lineEdit = qobject_cast<QLineEdit *>(editor)) { - if (value.userType() == QMetaType::QByteArray - && !isPrintable(value.toByteArray())) { - lineEdit->setReadOnly(true); - } - lineEdit->setText(displayText(value)); - } -} - -void VariantDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, - const QModelIndex &index) const -{ - const QVariant originalValue = index.model()->data(index, Qt::UserRole); - QVariant value; - - if (auto spinBox = qobject_cast<QSpinBox *>(editor)) { - value.setValue(spinBox->value()); - } else if (auto checkBox = qobject_cast<QCheckBox *>(editor)) { - value.setValue(checkBox->isChecked()); - } else if (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; - } - - QRegularExpressionMatch match; - - switch (originalValue.userType()) { - case QMetaType::QChar: - value = text.at(0); - break; - case QMetaType::QColor: - match = m_typeChecker->colorExp.match(text); - value = QColor(qMin(match.captured(1).toInt(), 255), - qMin(match.captured(2).toInt(), 255), - qMin(match.captured(3).toInt(), 255), - qMin(match.captured(4).toInt(), 255)); - break; - case QMetaType::QDate: - { - QDate date = QDate::fromString(text, Qt::ISODate); - if (!date.isValid()) - return; - value = date; - } - break; - case QMetaType::QDateTime: - { - QDateTime dateTime = QDateTime::fromString(text, Qt::ISODate); - if (!dateTime.isValid()) - return; - value = dateTime; - } - break; - case QMetaType::QPoint: - match = m_typeChecker->pointExp.match(text); - value = QPoint(match.captured(1).toInt(), match.captured(2).toInt()); - break; - case QMetaType::QRect: - match = m_typeChecker->rectExp.match(text); - value = QRect(match.captured(1).toInt(), match.captured(2).toInt(), - match.captured(3).toInt(), match.captured(4).toInt()); - break; - case QMetaType::QSize: - match = m_typeChecker->sizeExp.match(text); - value = QSize(match.captured(1).toInt(), match.captured(2).toInt()); - break; - case QMetaType::QStringList: - value = text.split(','); - break; - case QMetaType::QTime: - { - QTime time = QTime::fromString(text, Qt::ISODate); - if (!time.isValid()) - return; - value = time; - } - break; - default: - value = text; - value.convert(originalValue.metaType()); - } - } - - model->setData(index, displayText(value), Qt::DisplayRole); - model->setData(index, value, Qt::UserRole); -} - -bool VariantDelegate::isSupportedType(int type) -{ - switch (type) { - case QMetaType::Bool: - case QMetaType::QByteArray: - case QMetaType::QChar: - case QMetaType::QColor: - case QMetaType::QDate: - case QMetaType::QDateTime: - case QMetaType::Double: - case QMetaType::Int: - case QMetaType::LongLong: - case QMetaType::QPoint: - case QMetaType::QRect: - case QMetaType::QSize: - case QMetaType::QString: - case QMetaType::QStringList: - case QMetaType::QTime: - case QMetaType::UInt: - case QMetaType::ULongLong: - return true; - default: - return false; - } -} - -QString VariantDelegate::displayText(const QVariant &value) -{ - switch (value.userType()) { - case QMetaType::Bool: - return value.toBool() ? "✓" : "☐"; - case QMetaType::QByteArray: - return byteArrayToString(value.toByteArray()); - case QMetaType::QChar: - case QMetaType::Double: - case QMetaType::Int: - case QMetaType::LongLong: - case QMetaType::QString: - case QMetaType::UInt: - case QMetaType::ULongLong: - return value.toString(); - case QMetaType::QColor: - { - 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 QMetaType::QDate: - return value.toDate().toString(Qt::ISODate); - case QMetaType::QDateTime: - return value.toDateTime().toString(Qt::ISODate); - case QMetaType::UnknownType: - return "<Invalid>"; - case QMetaType::QPoint: - { - QPoint point = value.toPoint(); - return QString("(%1,%2)").arg(point.x()).arg(point.y()); - } - case QMetaType::QRect: - { - QRect rect = value.toRect(); - return QString("(%1,%2,%3,%4)") - .arg(rect.x()).arg(rect.y()) - .arg(rect.width()).arg(rect.height()); - } - case QMetaType::QSize: - { - QSize size = value.toSize(); - return QString("(%1,%2)").arg(size.width()).arg(size.height()); - } - case QMetaType::QStringList: - return value.toStringList().join(','); - case QMetaType::QTime: - return value.toTime().toString(Qt::ISODate); - default: - break; - } - return QString("<%1>").arg(value.typeName()); -} |