1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "abstractpropertyeditor.h"
QT_BEGIN_NAMESPACE
/*!
\class QDesignerPropertyEditorInterface
\brief The QDesignerPropertyEditorInterface class allows you to
query and manipulate the current state of Qt Designer's property
editor.
\inmodule QtDesigner
QDesignerPropertyEditorInterface contains a collection of
functions that is typically used to query the property editor for
its current state, and several slots manipulating it's state. The
interface also provide a signal, propertyChanged(), which is
emitted whenever a property changes in the property editor. The
signal's arguments are the property that changed and its new
value.
For example, when implementing a custom widget plugin, you can
connect the signal to a custom slot:
\snippet doc/src/snippets/code/tools_designer_src_lib_sdk_abstractpropertyeditor.cpp 0
Then the custom slot can check if the new value is within the
range we want when a specified property, belonging to a particular
widget, changes:
\snippet doc/src/snippets/code/tools_designer_src_lib_sdk_abstractpropertyeditor.cpp 1
The QDesignerPropertyEditorInterface class is not intended to be
instantiated directly. You can retrieve an interface to \QD's
property editor using the
QDesignerFormEditorInterface::propertyEditor() function. A pointer
to \QD's current QDesignerFormEditorInterface object (\c
formEditor in the examples above) is provided by the
QDesignerCustomWidgetInterface::initialize() function's
parameter. When implementing a custom widget plugin, you must
subclass the QDesignerCustomWidgetInterface to expose your plugin
to \QD.
The functions accessing the property editor are the core()
function that you can use to retrieve an interface to the form
editor, the currentPropertyName() function that returns the name
of the currently selected property in the property editor, the
object() function that returns the currently selected object in
\QD's workspace, and the isReadOnly() function that returns true
if the property editor is write proteced (otherwise false).
The slots manipulating the property editor's state are the
setObject() slot that you can use to change the currently selected
object in \QD's workspace, the setPropertyValue() slot that
changes the value of a given property and the setReadOnly() slot
that control the write protection of the property editor.
\sa QDesignerFormEditorInterface
*/
/*!
Constructs a property editor interface with the given \a parent and
the specified window \a flags.
*/
QDesignerPropertyEditorInterface::QDesignerPropertyEditorInterface(QWidget *parent, Qt::WindowFlags flags)
: QWidget(parent, flags)
{
}
/*!
Destroys the property editor interface.
*/
QDesignerPropertyEditorInterface::~QDesignerPropertyEditorInterface()
{
}
/*!
Returns a pointer to \QD's current QDesignerFormEditorInterface
object.
*/
QDesignerFormEditorInterface *QDesignerPropertyEditorInterface::core() const
{
return 0;
}
/*!
\fn bool QDesignerPropertyEditorInterface::isReadOnly() const
Returns true if the property editor is write protected; otherwise
false.
\sa setReadOnly()
*/
/*!
\fn QObject *QDesignerPropertyEditorInterface::object() const
Returns the currently selected object in \QD's workspace.
\sa setObject()
*/
/*!
\fn QString QDesignerPropertyEditorInterface::currentPropertyName() const
Returns the name of the currently selected property in the
property editor.
\sa setPropertyValue()
*/
/*!
\fn void QDesignerPropertyEditorInterface::propertyChanged(const QString &name, const QVariant &value)
This signal is emitted whenever a property changes in the property
editor. The property that changed and its new value are specified
by \a name and \a value respectively.
\sa setPropertyValue()
*/
/*!
\fn void QDesignerPropertyEditorInterface::setObject(QObject *object)
Changes the currently selected object in \QD's workspace, to \a
object.
\sa object()
*/
/*!
\fn void QDesignerPropertyEditorInterface::setPropertyValue(const QString &name, const QVariant &value, bool changed = true)
Sets the value of the property specified by \a name to \a
value.
In addition, the property is marked as \a changed in the property
editor, i.e. its value is different from the default value.
\sa currentPropertyName(), propertyChanged()
*/
/*!
\fn void QDesignerPropertyEditorInterface::setReadOnly(bool readOnly)
If \a readOnly is true, the property editor is made write
protected; otherwise the write protection is removed.
\sa isReadOnly()
*/
QT_END_NAMESPACE
|
