1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** All rights reserved.
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5 | ** Contact: Nokia Corporation ([email protected])
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6 | **
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7 | ** This file is part of the Qt Designer of the Qt Toolkit.
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8 | **
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9 | ** $QT_BEGIN_LICENSE:LGPL$
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10 | ** Commercial Usage
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11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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12 | ** accordance with the Qt Commercial License Agreement provided with the
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13 | ** Software or, alternatively, in accordance with the terms contained in
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14 | ** a written agreement between you and Nokia.
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15 | **
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16 | ** GNU Lesser General Public License Usage
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17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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18 | ** General Public License version 2.1 as published by the Free Software
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19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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20 | ** packaging of this file. Please review the following information to
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21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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23 | **
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24 | ** In addition, as a special exception, Nokia gives you certain additional
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25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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27 | **
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28 | ** GNU General Public License Usage
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29 | ** Alternatively, this file may be used under the terms of the GNU
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30 | ** General Public License version 3.0 as published by the Free Software
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31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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32 | ** packaging of this file. Please review the following information to
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33 | ** ensure the GNU General Public License version 3.0 requirements will be
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34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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35 | **
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36 | ** If you have questions regarding the use of this file, please contact
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37 | ** Nokia at [email protected].
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38 | ** $QT_END_LICENSE$
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39 | **
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40 | ****************************************************************************/
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41 |
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42 | #include "script_p.h"
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43 |
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44 | QT_BEGIN_NAMESPACE
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45 |
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46 | /*!
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47 | \class QDesignerScriptExtension
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48 | \brief The QDesignerScriptExtension class allows you to generate a
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49 | per-widget \l{QtScript} {Qt Script} snippet to be executed while
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50 | building the form.
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51 |
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52 | \internal
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53 | \inmodule QtDesigner
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54 | \since 4.3
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55 |
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56 | On saving the form, the extension is queried for a script snippet
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57 | to be associated with the widget while saving the UI file.
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58 | This script is then run after creating the widget by \l uic or
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59 | QUiLoader.
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60 |
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61 | As opposed to \l QDesignerCustomWidgetInterface::codeTemplate(),
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62 | it allows for applying an internal state of the widget
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63 | that can be manipulated using \QD.
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64 |
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65 | Such a state might for example be the contents of a custom item view widget,
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66 | for which an editor is provided by the QDesignerTaskMenuExtension.
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67 |
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68 | While saving the form, the state is serialized as a QVariantMap of
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69 | \QD-supported properties, which is stored in the UI file. This is
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70 | handled by data() and setData().
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71 |
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72 | For item view contents, there might be for example a key that determines
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73 | the number of items and other keys that contain the actual items following
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74 | a naming scheme (\c numItems, \c item1, \c item2, ...).
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75 |
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76 | On saving, script() is invoked, which should return a script snippet that
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77 | applies the state to the widget while building the form.
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78 |
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79 | \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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80 | */
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81 |
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82 | /*!
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83 | Destroys the extension.
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84 | */
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85 |
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86 | QDesignerScriptExtension::~QDesignerScriptExtension()
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87 | {
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88 | }
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89 |
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90 | /*!
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91 | \fn virtual QString QDesignerScriptExtension::script() const
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92 |
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93 | Returns a script snippet to be associated with the widget.
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94 | */
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95 |
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96 | /*!
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97 | \fn virtual QVariantMap QDesignerScriptExtension::data() const
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98 |
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99 | Returns a map of variants describing the internal state to be
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100 | stored in the UI file.
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101 | */
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102 |
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103 | /*!
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104 | \fn virtual void QDesignerScriptExtension::setData(const QVariantMap &data)
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105 |
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106 | Applies the internal state stored in \a data to the widget while loading a form.
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107 | */
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108 |
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109 | QT_END_NAMESPACE
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