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
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
/*
* This file is part of the KDE libraries
* Copyright (C) 2003 Benjamin C Meyer (ben+kdelibs at meyerhome dot net)
* Copyright (C) 2003 Waldo Bastian <bastian@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef KCONFIGDIALOGMANAGER_H
#define KCONFIGDIALOGMANAGER_H
#include <qobject.h>
#include <qptrlist.h>
#include "kdelibs_export.h"
class KConfigSkeleton;
class KConfigSkeletonItem;
class QWidget;
class QSqlPropertyMap;
/**
* @short Provides a means of automatically retrieving,
* saving and resetting KConfigSkeleton based settings in a dialog.
*
* The KConfigDialogManager class provides a means of automatically
* retrieving, saving and resetting basic settings.
* It also can emit signals when settings have been changed
* (settings were saved) or modified (the user changes a checkbox
* from on to off).
*
* The names of the widgets to be managed have to correspond to the names of the
* configuration entries in the KConfigSkeleton object plus an additional
* "kcfg_" prefix. For example a widget named "kcfg_MyOption" would be
* associated to the configuration entry "MyOption".
*
* KConfigDialogManager uses the QSqlPropertyMap class to determine if it can do
* anything to a widget. Note that KConfigDialogManager doesn't require a
* database, it simply uses the functionality that is built into the
* QSqlPropertyMap class. New widgets can be added to the map using
* QSqlPropertyMap::installDefaultMap(). Note that you can't just add any
* class. The class must have a matching Q_PROPERTY(...) macro defined.
*
* For example (note that KColorButton is already added and it doesn't need to
* manually added):
*
* kcolorbutton.h defines the following property:
* \code
* Q_PROPERTY( QColor color READ color WRITE setColor )
* \endcode
*
* To add KColorButton the following code would be inserted in the main.
*
* \code
* kapp->installKDEPropertyMap();
* QSqlPropertyMap *map = QSqlPropertyMap::defaultMap();
* map->insert("KColorButton", "color");
* \endcode
*
* If you add a new widget to the QSqlPropertyMap and wish to be notified when
* it is modified you should add its signal using addWidgetChangedSignal().
* @since 3.2
* @author Benjamin C Meyer <ben+kdelibs at meyerhome dot net>
* @author Waldo Bastian <bastian@kde.org>
*/
class KDECORE_EXPORT KConfigDialogManager : public QObject {
Q_OBJECT
signals:
/**
* One or more of the settings have been saved (such as when the user
* clicks on the Apply button). This is only emitted by updateSettings()
* whenever one or more setting were changed and consequently saved.
*/
void settingsChanged();
/**
* TODO: Verify
* One or more of the settings have been changed.
* @param widget - The widget group (pass in via addWidget()) that
* contains the one or more modified setting.
* @see settingsChanged()
*/
void settingsChanged( QWidget *widget );
/**
* If retrieveSettings() was told to track changes then if
* any known setting was changed this signal will be emitted. Note
* that a settings can be modified several times and might go back to the
* original saved state. hasChanged() will tell you if anything has
* actually changed from the saved values.
*/
void widgetModified();
public:
/**
* Constructor.
* @param parent Dialog widget to manage
* @param conf Object that contains settings
* @param name - Object name.
*/
KConfigDialogManager(QWidget *parent, KConfigSkeleton *conf, const char *name=0);
/**
* Destructor.
*/
~KConfigDialogManager();
/**
* Add additional widgets to manage
* @param widget Additional widget to manage, inlcuding all its children
*/
void addWidget(QWidget *widget);
/**
* Returns whether the current state of the known widgets are
* different from the state in the config object.
*/
bool hasChanged();
/**
* Returns whether the current state of the known widgets are
* the same as the default state in the config object.
*/
bool isDefault();
public slots:
/**
* Traverse the specified widgets, saving the settings of all known
* widgets in the settings object.
*
* Example use: User clicks Ok or Apply button in a configure dialog.
*/
void updateSettings();
/**
* Traverse the specified widgets, sets the state of all known
* widgets according to the state in the settings object.
*
* Example use: Initialisation of dialog.
* Example use: User clicks Reset button in a configure dialog.
*/
void updateWidgets();
/**
* Traverse the specified widgets, sets the state of all known
* widgets according to the default state in the settings object.
*
* Example use: User clicks Defaults button in a configure dialog.
*/
void updateWidgetsDefault();
protected:
/**
* @param trackChanges - If any changes by the widgets should be tracked
* set true. This causes the emitting the modified() signal when
* something changes.
* TODO: @return bool - True if any setting was changed from the default.
*/
void init(bool trackChanges);
/**
* Recursive function that finds all known children.
* Goes through the children of widget and if any are known and not being
* ignored, stores them in currentGroup. Also checks if the widget
* should be disabled because it is set immutable.
* @param widget - Parent of the children to look at.
* @param trackChanges - If true then tracks any changes to the children of
* widget that are known.
* @return bool - If a widget was set to something other then its default.
*/
bool parseChildren(const QWidget *widget, bool trackChanges);
/**
* Set a property
*/
void setProperty(QWidget *w, const QVariant &v);
/**
* Retrieve a property
*/
QVariant property(QWidget *w);
/**
* Setup secondary widget properties
*/
void setupWidget(QWidget *widget, KConfigSkeletonItem *item);
protected:
/**
* KConfigSkeleton object used to store settings
*/
KConfigSkeleton *m_conf;
/**
* Dialog being managed
*/
QWidget *m_dialog;
/**
* Pointer to the property map for easy access.
*/
QSqlPropertyMap *propertyMap;
/**
* Map of the classes and the signals that they emit when changed.
*/
QMap<QString, QCString> changedMap;
private:
class Private;
/**
* KConfigDialogManager Private class.
*/
Private *d;
};
#endif // KCONFIGDIALOGMANAGER_H
|
