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110 lines
4 KiB
C++
110 lines
4 KiB
C++
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/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the Qt Designer of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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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 http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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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 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "script_p.h"
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QT_BEGIN_NAMESPACE
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/*!
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\class QDesignerScriptExtension
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\brief The QDesignerScriptExtension class allows you to generate a
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per-widget \l{QtScript} {Qt Script} snippet to be executed while
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building the form.
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\internal
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\inmodule QtDesigner
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\since 4.3
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On saving the form, the extension is queried for a script snippet
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to be associated with the widget while saving the UI file.
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This script is then run after creating the widget by \l uic or
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QUiLoader.
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As opposed to \l QDesignerCustomWidgetInterface::codeTemplate(),
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it allows for applying an internal state of the widget
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that can be manipulated using \QD.
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Such a state might for example be the contents of a custom item view widget,
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for which an editor is provided by the QDesignerTaskMenuExtension.
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While saving the form, the state is serialized as a QVariantMap of
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\QD-supported properties, which is stored in the UI file. This is
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handled by data() and setData().
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For item view contents, there might be for example a key that determines
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the number of items and other keys that contain the actual items following
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a naming scheme (\c numItems, \c item1, \c item2, ...).
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On saving, script() is invoked, which should return a script snippet that
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applies the state to the widget while building the form.
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\sa {Creating Custom Widgets for Qt Designer#Using Qt Script to Aid in Building Forms}{Creating Custom Widgets for Qt Designer}, QtScript
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*/
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/*!
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Destroys the extension.
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*/
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QDesignerScriptExtension::~QDesignerScriptExtension()
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{
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}
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/*!
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\fn virtual QString QDesignerScriptExtension::script() const
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Returns a script snippet to be associated with the widget.
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*/
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/*!
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\fn virtual QVariantMap QDesignerScriptExtension::data() const
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Returns a map of variants describing the internal state to be
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stored in the UI file.
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*/
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/*!
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\fn virtual void QDesignerScriptExtension::setData(const QVariantMap &data)
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Applies the internal state stored in \a data to the widget while loading a form.
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*/
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QT_END_NAMESPACE
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