source: trunk/src/sql/qeditorfactory.cpp

Last change on this file was 196, checked in by rudi, 14 years ago

Add SQL module (currently it isn't build by default, however it's needed for QtDesigner)
File size: 5.4 KB
Line 
1/****************************************************************************
2**
3** Implementation of QEditorFactory class
4**
5** Created : 2000-11-17
6**
7** Copyright (C) 2005-2007 Trolltech ASA. All rights reserved.
8**
9** This file is part of the sql module of the Qt GUI Toolkit.
10**
11** This file may be distributed under the terms of the Q Public License
12** as defined by Trolltech ASA of Norway and appearing in the file
13** LICENSE.QPL included in the packaging of this file.
14**
15** This file may be distributed and/or modified under the terms of the
16** GNU General Public License version 2 as published by the Free Software
17** Foundation and appearing in the file LICENSE.GPL included in the
18** packaging of this file.
19**
20** Licensees holding valid Qt Enterprise Edition licenses may use this
21** file in accordance with the Qt Commercial License Agreement provided
22** with the Software.
23**
24** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
25** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
26**
27** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
28** information about Qt Commercial License Agreements.
29** See http://www.trolltech.com/qpl/ for QPL licensing information.
30** See http://www.trolltech.com/gpl/ for GPL licensing information.
31**
32** Contact info@trolltech.com if any conditions of this licensing are
33** not clear to you.
34**
35**********************************************************************/
36
37#include "qcleanuphandler.h"
38#include "qlabel.h"
39#include "qlineedit.h"
40#include "qspinbox.h"
41#include "qcombobox.h"
42
43#include "qeditorfactory.h"
44#include "qdatetimeedit.h"
45
46#ifndef QT_NO_SQL_EDIT_WIDGETS
47
48/*!
49 \class QEditorFactory qeditorfactory.h
50 \brief The QEditorFactory class is used to create editor widgets
51 for QVariant data types.
52
53 \ingroup database
54 \module sql
55
56 Each editor factory provides the createEditor() function which
57 given a QVariant will create and return a QWidget that can edit
58 that QVariant. For example if you have a QVariant::String type, a
59 QLineEdit would be the default editor returned, whereas a
60 QVariant::Int's default editor would be a QSpinBox.
61
62 If you want to create different editors for fields with the same
63 data type, subclass QEditorFactory and reimplement the
64 createEditor() function.
65*/
66
67/*!
68 Constructs an editor factory with parent \a parent, called \a name.
69*/
70
71QEditorFactory::QEditorFactory ( QObject * parent, const char * name )
72 : QObject( parent, name )
73{
74
75}
76
77/*!
78 Destroys the object and frees any allocated resources.
79*/
80
81QEditorFactory::~QEditorFactory()
82{
83
84}
85
86static QEditorFactory * defaultfactory = 0;
87static QCleanupHandler< QEditorFactory > q_cleanup_editor_factory;
88
89/*!
90 Returns an instance of a default editor factory.
91*/
92
93QEditorFactory * QEditorFactory::defaultFactory()
94{
95 if( defaultfactory == 0 ){
96 defaultfactory = new QEditorFactory();
97 q_cleanup_editor_factory.add( &defaultfactory );
98 }
99
100 return defaultfactory;
101}
102
103/*!
104 Replaces the default editor factory with \a factory.
105 \e{QEditorFactory takes ownership of factory, and destroys it
106 when it is no longer needed.}
107*/
108
109void QEditorFactory::installDefaultFactory( QEditorFactory * factory )
110{
111 if( factory == 0 || factory == defaultfactory ) return;
112
113 if( defaultfactory != 0 ){
114 q_cleanup_editor_factory.remove( &defaultfactory );
115 delete defaultfactory;
116 }
117 defaultfactory = factory;
118 q_cleanup_editor_factory.add( &defaultfactory );
119}
120
121/*!
122 Creates and returns the appropriate editor for the QVariant \a v.
123 If the QVariant is invalid, 0 is returned. The \a parent is passed
124 to the appropriate editor's constructor.
125*/
126
127QWidget * QEditorFactory::createEditor( QWidget * parent, const QVariant & v )
128{
129 QWidget * w = 0;
130 switch( v.type() ){
131 case QVariant::Invalid:
132 w = 0;
133 break;
134 case QVariant::Bool:
135 w = new QComboBox( parent, "qt_editor_bool" );
136 ((QComboBox *) w)->insertItem( "False" );
137 ((QComboBox *) w)->insertItem( "True" );
138 break;
139 case QVariant::UInt:
140 w = new QSpinBox( 0, 999999, 1, parent, "qt_editor_spinbox" );
141 break;
142 case QVariant::Int:
143 w = new QSpinBox( -999999, 999999, 1, parent, "qt_editor_int" );
144 break;
145 case QVariant::String:
146 case QVariant::CString:
147 case QVariant::Double:
148 w = new QLineEdit( parent, "qt_editor_double" );
149 ((QLineEdit*)w)->setFrame( FALSE );
150 break;
151 case QVariant::Date:
152 w = new QDateEdit( parent, "qt_editor_date" );
153 break;
154 case QVariant::Time:
155 w = new QTimeEdit( parent, "qt_editor_time" );
156 break;
157 case QVariant::DateTime:
158 w = new QDateTimeEdit( parent, "qt_editor_datetime" );
159 break;
160#ifndef QT_NO_LABEL
161 case QVariant::Pixmap:
162 w = new QLabel( parent, "qt_editor_pixmap" );
163 break;
164#endif
165 case QVariant::Palette:
166 case QVariant::ColorGroup:
167 case QVariant::Color:
168 case QVariant::Font:
169 case QVariant::Brush:
170 case QVariant::Bitmap:
171 case QVariant::Cursor:
172 case QVariant::Map:
173 case QVariant::StringList:
174 case QVariant::Rect:
175 case QVariant::Size:
176 case QVariant::IconSet:
177 case QVariant::Point:
178 case QVariant::PointArray:
179 case QVariant::Region:
180 case QVariant::SizePolicy:
181 case QVariant::ByteArray:
182 default:
183 w = new QWidget( parent, "qt_editor_default" );
184 break;
185 }
186 return w;
187}
188#endif // QT_NO_SQL
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