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

Revision 1812, 4.6 KB checked in by gumbau, 18 years ago (diff)
Line 
1/************************************************************************
2        filename:       CEGUIResourceProvider.h
3        created:        8/7/2004
4        author:         James '_mental_' O'Sullivan
5       
6        purpose:        Defines abstract base class for loading DataContainer objects
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 _CEGUIResourceProvider_h_
27#define _CEGUIResourceProvider_h_
28
29#include "CEGUIBase.h"
30#include "CEGUIDataContainer.h"
31#include "CEGUIString.h"
32
33
34// Start of CEGUI namespace section
35namespace CEGUI
36{
37/*!
38\brief
39        Abstract class that defines the required interface for all resource provider sub-classes.
40
41        A ResourceProvider is used to load both XML and binary data from an external source.  This could be from a filesystem or the resource manager of a specific renderer.
42*/
43class CEGUIEXPORT ResourceProvider
44{
45public:
46        /*************************************************************************
47                Construction and Destruction
48        *************************************************************************/
49    /*!
50    \brief
51        Constructor for the ResourceProvider class
52    */
53        ResourceProvider() { }
54
55    /*!
56    \brief
57        Destructor for the ResourceProvider class
58    */
59        virtual ~ResourceProvider(void) { }
60
61    /*************************************************************************
62        Accessor functions
63    *************************************************************************/
64
65//    /*!
66//    \brief
67//        Load XML data using InputSource objects.
68//
69//    \param filename
70//        String containing a filename of the resource to be loaded.
71//
72//      \param output
73//              Reference to a InputSourceContainer object to load the data into.
74//   */
75//    virtual void loadInputSourceContainer(const String& filename, InputSourceContainer& output) = 0;
76
77    /*!
78    \brief
79        Load raw binary data.
80
81    \param filename
82        String containing a filename of the resource to be loaded.
83
84        \param output
85        Reference to a RawDataContainer object to load the data into.
86
87    \param resourceGroup
88        Optional String that may be used by implementations to identify the group from
89        which the resource should be loaded.
90    */
91    virtual void loadRawDataContainer(const String& filename, RawDataContainer& output, const String& resourceGroup) = 0;
92
93    /*!
94    \brief
95        Unload raw binary data. This gives the resource provider a change to unload the data
96        in its own way before the data container object is destroyed.  If it does nothing,
97        then the object will release its memory.
98
99        \param data
100        Reference to a RawDataContainer object that is about to be destroyed.
101
102    */
103    virtual void unloadRawDataContainer(RawDataContainer& data)  { }
104
105    /*!
106    \brief
107        Return the current default resource group identifier.
108
109    \return
110        String object containing the currently set default resource group identifier.
111    */
112    const String&   getDefaultResourceGroup(void) const     { return d_defaultResourceGroup; }
113   
114    /*!
115    \brief
116        Set the default resource group identifier.
117
118    \param resourceGroup
119        String object containing the default resource group identifier to be used.
120
121    \return
122        Nothing.
123    */
124    void    setDefaultResourceGroup(const String& resourceGroup)    { d_defaultResourceGroup = resourceGroup; }
125
126protected:
127    String  d_defaultResourceGroup;     //!< Default resource group identifier.
128};
129
130} // End of  CEGUI namespace section
131
132#endif  // end of guard _CEGUIResourceProvider_h_
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