source: GTP/trunk/App/Demos/Geom/OgreStuff/include/CEGUI/elements/CEGUIRadioButton.h @ 1812

Revision 1812, 6.8 KB checked in by gumbau, 18 years ago (diff)
Line 
1/************************************************************************
2        filename:       CEGUIRadioButton.h
3        created:        13/4/2004
4        author:         Paul D Turner
5       
6        purpose:        Interface to base class for RadioButton widget
7*************************************************************************/
8/*************************************************************************
9    Crazy Eddie's GUI System (http://www.cegui.org.uk)
10    Copyright (C)2004 - 2005 Paul D Turner (paul@cegui.org.uk)
11
12    This library is free software; you can redistribute it and/or
13    modify it under the terms of the GNU Lesser General Public
14    License as published by the Free Software Foundation; either
15    version 2.1 of the License, or (at your option) any later version.
16
17    This library is distributed in the hope that it will be useful,
18    but WITHOUT ANY WARRANTY; without even the implied warranty of
19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
20    Lesser General Public License for more details.
21
22    You should have received a copy of the GNU Lesser General Public
23    License along with this library; if not, write to the Free Software
24    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
25*************************************************************************/
26#ifndef _CEGUIRadioButton_h_
27#define _CEGUIRadioButton_h_
28
29#include "CEGUIBase.h"
30#include "elements/CEGUIButtonBase.h"
31#include "elements/CEGUIRadioButtonProperties.h"
32
33
34#if defined(_MSC_VER)
35#       pragma warning(push)
36#       pragma warning(disable : 4251)
37#endif
38
39
40// Start of CEGUI namespace section
41namespace CEGUI
42{
43/*!
44\brief
45        Base class to provide the logic for Radio Button widgets.
46
47*/
48class CEGUIEXPORT RadioButton : public ButtonBase
49{
50public:
51        static const String EventNamespace;                             //!< Namespace for global events
52
53
54        /*************************************************************************
55                Event name constants
56        *************************************************************************/
57        // generated internally by Window
58        static const String EventSelectStateChanged;                    //!< The selected state of the widget has changed.
59
60
61        /*************************************************************************
62                Accessor Functions
63        *************************************************************************/
64        /*!
65        \brief
66                return true if the radio button is selected (has the checkmark)
67
68        \return
69                true if this widget is selected, false if the widget is not selected.
70        */
71        bool    isSelected(void) const                          {return d_selected;}
72
73       
74        /*!
75        \brief
76                return the groupID assigned to this radio button
77
78        \return
79                ulong value that identifies the Radio Button group this widget belongs to.
80        */
81        ulong   getGroupID(void) const                          {return d_groupID;}
82
83
84        /*!
85        \brief
86                Return a pointer to the RadioButton object within the same group as this RadioButton, that
87                is currently selected.
88
89        \return
90                Pointer to the RadioButton object that is the RadioButton within the same group as this RadioButton,
91                and is attached to the same parent window as this RadioButton, that is currently selected.
92                Returns NULL if no button within the group is selected, or if 'this' is not attached to a parent window.
93        */
94        RadioButton*    getSelectedButtonInGroup(void) const;
95
96
97        /*************************************************************************
98                Manipulator Functions
99        *************************************************************************/
100        /*!
101        \brief
102                set whether the radio button is selected or not
103
104        \param select
105                true to put the radio button in the selected state, false to put the radio button in the
106                deselected state.  If changing to the selected state, any previously selected radio button
107                within the same group is automatically deselected.
108
109        \return
110                Nothing.
111        */
112        void    setSelected(bool select);
113
114       
115        /*!
116        \brief
117                set the groupID for this radio button
118
119        \param group
120                ulong value specifying the radio button group that this widget belongs to.
121
122        \return
123                Nothing.
124        */
125        void    setGroupID(ulong group);
126
127
128        /*************************************************************************
129                Construction / Destruction
130        *************************************************************************/
131        RadioButton(const String& type, const String& name);
132        virtual ~RadioButton(void);
133
134
135protected:
136        /*************************************************************************
137                Implementation Functions
138        *************************************************************************/
139        /*!
140        \brief
141                Add radio button specific events
142        */
143        void    addRadioButtonEvents(void);
144
145
146        /*!
147        \brief
148                Deselect any selected radio buttons attached to the same parent within the same group
149                (but not do not deselect 'this').
150        */
151        void    deselectOtherButtonsInGroup(void) const;
152
153
154        /*!
155        \brief
156                Return whether this window was inherited from the given class name at some point in the inheritance heirarchy.
157
158        \param class_name
159                The class name that is to be checked.
160
161        \return
162                true if this window was inherited from \a class_name. false if not.
163        */
164        virtual bool    testClassName_impl(const String& class_name) const
165        {
166                if (class_name==(const utf8*)"RadioButton")     return true;
167                return ButtonBase::testClassName_impl(class_name);
168        }
169
170
171        /*************************************************************************
172                New Radio Button Events
173        *************************************************************************/
174        /*!
175        \brief
176                event triggered internally when the select state of the button changes.
177        */
178        virtual void    onSelectStateChanged(WindowEventArgs& e);
179
180
181        /*************************************************************************
182                Overridden Event handlers
183        *************************************************************************/
184        virtual void    onMouseButtonUp(MouseEventArgs& e);
185
186
187        /*************************************************************************
188                Implementation Data
189        *************************************************************************/
190        bool            d_selected;                             // true when radio button is selected (has checkmark)
191        ulong           d_groupID;                              // radio button group ID
192
193
194private:
195        /*************************************************************************
196                Static Properties for this class
197        *************************************************************************/
198        static RadioButtonProperties::Selected  d_selectedProperty;
199        static RadioButtonProperties::GroupID   d_groupIDProperty;
200
201
202        /*************************************************************************
203                Private methods
204        *************************************************************************/
205        void    addRadioButtonProperties(void);
206};
207
208
209} // End of  CEGUI namespace section
210
211#if defined(_MSC_VER)
212#       pragma warning(pop)
213#endif
214
215#endif  // end of guard _CEGUIRadioButton_h_
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