source: GTP/trunk/App/Demos/Geom/OgreStuff/include/CEGUI/elements/CEGUIMenuBase.h @ 1092

Revision 1092, 9.0 KB checked in by gumbau, 18 years ago (diff)

LodStrips? and LODTrees demos
Line 
1/************************************************************************
2        filename:       CEGUIMenuBase.h
3        created:        5/4/2005
4        author:         Tomas Lindquist Olsen (based on code by Paul D Turner)
5       
6        purpose:        Interface to base class for MenuBase 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 _CEGUIMenuBase_h_
27#define _CEGUIMenuBase_h_
28
29#include "CEGUIBase.h"
30#include "CEGUIWindow.h"
31#include "elements/CEGUIMenuBaseProperties.h"
32#include "elements/CEGUIItemListBase.h"
33
34
35#if defined(_MSC_VER)
36#       pragma warning(push)
37#       pragma warning(disable : 4251)
38#endif
39
40
41// Start of CEGUI namespace section
42namespace CEGUI
43{
44
45/*!
46\brief
47        Abstract base class for menus.
48*/
49class CEGUIEXPORT MenuBase : public ItemListBase
50{
51public:
52        static const String EventNamespace;                             //!< Namespace for global events
53
54        /*************************************************************************
55                Constants
56        *************************************************************************/
57        static const colour DefaultBackgroundColour;                    //!< Default background colour
58
59
60        /*************************************************************************
61                Event name constants
62        *************************************************************************/
63        // generated internally by Window
64        static const String EventPopupOpened;                                   //!< A MenuItem attached to this menu opened a PopupMenu
65        static const String EventPopupClosed;                                   //!< A MenuItem attached to this menu opened a PopupMenu
66
67
68        /*************************************************************************
69                Accessor type functions
70        *************************************************************************/
71        /*!
72        \brief
73                Get the item spacing for this menu.
74
75        \return
76                A float value with the current item spacing for this menu
77        */
78        float   getItemSpacing(void) const                                      {return d_itemSpacing;}
79
80
81        /*!
82        \brief
83                Get the horizontal padding for this menu's items.
84
85        \return
86                A float value with the current horizontal padding for this menu's items.
87        */
88        float   getHorzPadding(void) const                                      {return d_horzPadding;}
89
90
91        /*!
92        \brief
93                Get the vertical padding for this menu's items.
94
95        \return
96                A float value with the current vertical padding for this menu's items.
97        */
98        float   getVertPadding(void) const                                      {return d_vertPadding;}
99
100
101        /*!
102        \brief
103                Get the border width for this menu.
104
105        \return
106                A float value with the current border width for this menu.
107        */
108        float   getBorderWidth(void) const                                      {return d_borderWidth;}
109
110
111        /*!
112        \brief
113                Get the ColourRect with the colours used for rendering the background of this menu.
114
115        \return
116                A ColourRect with the colours used for rendering the background of this menu.
117        */
118        const ColourRect&       getBackgroundColours(void) const        {return d_backgroundColours;}
119
120
121        /*!
122        \brief
123                Return whether this menu allows multiple popup menus to open at the same time.
124
125        \return
126                true if this menu allows multiple popup menus to be opened simultaneously. false if not
127        */
128        bool    isMultiplePopupsAllowed(void) const                     {return d_allowMultiplePopups;}
129
130
131        /*!
132        \brief
133                Get currently opened MenuItem in this menu. Returns NULL if menu item is open.
134
135        \return
136                Pointer to the MenuItem currently open.
137        */
138        MenuItem*       getPopupMenuItem(void) const                            {return d_popup;}
139
140
141        /*************************************************************************
142                Manipulators
143        *************************************************************************/
144        /*!
145        \brief
146                Set the item spacing for this menu.
147        */
148        void    setItemSpacing(float spacing)                           {d_itemSpacing=spacing;handleUpdatedItemData();}
149
150
151        /*!
152        \brief
153                Set the horizontal padding for this menu's items.
154        */
155        void    setHorzPadding(float padding)                           {d_horzPadding=padding;handleUpdatedItemData();}
156
157
158        /*!
159        \brief
160                Set the vertical padding for this menu's items.
161        */
162        void    setVertPadding(float padding)                           {d_vertPadding=padding;handleUpdatedItemData();}
163
164
165        /*!
166        \brief
167                Set the border width for this menu.
168        */
169        void    setBorderWidth(float border)                            {d_borderWidth=border;handleUpdatedItemData();}
170
171
172        /*!
173        \brief
174                Set the background colours to used when rendereing this menu.
175        */
176        void    setBackgroundColours(const ColourRect& cr)      {d_backgroundColours=cr;}
177
178
179        /*!
180        \brief
181                Change the currently open MenuItem in this menu.
182
183        \param item
184                Pointer to a MenuItem to open or NULL to close any opened.
185        */
186        void    changePopupMenuItem(MenuItem* item);
187
188
189        /*!
190        \brief
191                Set whether this menu allows multiple popup menus to opened simultaneously.
192        */
193        void    setAllowMultiplePopups(bool setting)            {d_allowMultiplePopups=setting;}
194
195
196        /*************************************************************************
197                Construction and Destruction
198        *************************************************************************/
199        /*!
200        \brief
201                Constructor for MenuBase objects
202        */
203        MenuBase(const String& type, const String& name);
204
205
206        /*!
207        \brief
208                Destructor for MenuBase objects
209        */
210        virtual ~MenuBase(void);
211
212
213protected:
214        /*************************************************************************
215                New Event Handlers
216        *************************************************************************/
217        /*!
218        \brief
219                handler invoked internally when the a MenuItem attached to this menu opens its popup.
220        */
221        virtual void    onPopupOpened(WindowEventArgs& e);
222
223
224        /*!
225        \brief
226                handler invoked internally when the a MenuItem attached to this menu closes its popup.
227        */
228        virtual void    onPopupClosed(WindowEventArgs& e);
229
230
231        /*************************************************************************
232                Implementation Functions
233        *************************************************************************/
234        /*!
235        \brief
236                Add MenuBase specific events
237        */
238        void    addMenuBaseEvents(void);
239
240
241        /*!
242        \brief
243                Return whether this window was inherited from the given class name at some point in the inheritance heirarchy.
244
245        \param class_name
246                The class name that is to be checked.
247
248        \return
249                true if this window was inherited from \a class_name. false if not.
250        */
251        virtual bool    testClassName_impl(const String& class_name) const
252        {
253                if (class_name==(const utf8*)"MenuBase")        return true;
254                return ItemListBase::testClassName_impl(class_name);
255        }
256
257
258        /*************************************************************************
259                Implementation Data
260        *************************************************************************/
261        float d_itemSpacing;            //!< The spacing in pixels between items.
262        float d_horzPadding;            //!< The width in pixels that is added to the left and right of each item.
263        float d_vertPadding;            //!< The height in pixels that is added to the top and bottom of each item.
264        float d_borderWidth;            //!< The width in pixels of the border around the entire content of this menu.
265       
266        ColourRect d_backgroundColours;         //!< The colours used when rendering the background of this menu.
267       
268        MenuItem* d_popup;              //!< The currently open MenuItem. NULL if no item is open. If multiple popups are allowed, this means nothing.
269        bool d_allowMultiplePopups;             //!< true if multiple popup menus are allowed smultaneously.  false if not.
270
271
272private:
273        /*************************************************************************
274        Static Properties for this class
275        *************************************************************************/
276        static MenuBaseProperties::ItemSpacing                  d_itemSpacingProperty;
277        static MenuBaseProperties::HorzPadding                  d_horzPaddingProperty;
278        static MenuBaseProperties::VertPadding                  d_vertPaddingProperty;
279        static MenuBaseProperties::BorderWidth                  d_borderWidthProperty;
280        static MenuBaseProperties::BackgroundColours    d_backgroundColoursProperty;
281        static MenuBaseProperties::AllowMultiplePopups  d_allowMultiplePopupsProperty;
282
283        /*************************************************************************
284        Private methods
285        *************************************************************************/
286        void    addMenuBaseProperties(void);
287};
288
289} // End of  CEGUI namespace section
290
291
292#if defined(_MSC_VER)
293#       pragma warning(pop)
294#endif
295
296#endif  // end of guard _CEGUIMenuBase_h_
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