Digital Artifex
86 lines
2.5 KiB
QML
86 lines
2.5 KiB
QML
/****************************************************************************
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**
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** Copyright (C) 2020 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Quick Designer Components.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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import QtQuick 2.10
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/*!
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\qmltype NotOperator
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\inqmlmodule QtQuick.Studio.LogicHelper
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\since QtQuick.Studio.LogicHelper 1.0
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\inherits QtObject
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\brief Evaluates a boolean input value and provides the result as output.
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The NotOperator type evaluates the boolean input \l input. The \l output
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value is evaluated as \c true if \l input is evaluated as \c false.
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Designers can use the Not Operator type in \QDS instead of writing
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JavaScript expressions.
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\section1 Example Usage
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In the following example, we use the checked state of a \l CheckBox to
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determine the checked state of another one:
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\code
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Rectangle {
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CheckBox {
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id: checkBox1
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text: qsTr("Check Box 1")
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checked: false
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}
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CheckBox {
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id: checkBox2
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text: qsTr("Check Box 2")
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checked: notOperator.output
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}
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NotOperator {
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id: notOperator
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input: checkBox1.checked
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}
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}
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\endcode
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\sa AndOperator, OrOperator
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*/
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QtObject {
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id: object
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/*!
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The value to evaluate.
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*/
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property bool input: false
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/*!
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The result of the evaluation.
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*/
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property bool output: !object.input
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}
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