1 /*****************************************************************************
2 * art_manager.cpp
3 *****************************************************************************
4 * Copyright (C) 2010 the VideoLAN team
5 * $Id: f4dec63de64e2126469c67cfd6f83b3b1c8faaa4 $
6 *
7 * Author: Erwan Tulou <erwan10@vidoelan.org>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
23
24 #ifdef HAVE_CONFIG_H
25 # include "config.h"
26 #endif
27
28 #include "art_manager.hpp"
29 #include <vlc_image.h>
30
31 #include <new>
32
33 #define MAX_ART_CACHED 2
34
35
instance(intf_thread_t * pIntf)36 ArtManager *ArtManager::instance( intf_thread_t *pIntf )
37 {
38 if( pIntf->p_sys->p_artManager == NULL )
39 {
40 pIntf->p_sys->p_artManager = new ArtManager( pIntf );
41 }
42
43 return pIntf->p_sys->p_artManager;
44 }
45
46
destroy(intf_thread_t * pIntf)47 void ArtManager::destroy( intf_thread_t *pIntf )
48 {
49 delete pIntf->p_sys->p_artManager;
50 pIntf->p_sys->p_artManager = NULL;
51 }
52
53
ArtManager(intf_thread_t * pIntf)54 ArtManager::ArtManager( intf_thread_t* pIntf ) : SkinObject( pIntf )
55 {
56 // initialize handler
57 m_pImageHandler = image_HandlerCreate( pIntf );
58
59 if( !m_pImageHandler )
60 msg_Err( getIntf(), "initialization of art manager failed" );
61 }
62
63
~ArtManager()64 ArtManager::~ArtManager( )
65 {
66 if( m_pImageHandler )
67 {
68 image_HandlerDelete( m_pImageHandler );
69 m_pImageHandler = NULL;
70 }
71
72 std::list<ArtBitmap*>::const_iterator it;
73 for( it = m_listBitmap.begin(); it != m_listBitmap.end(); ++it )
74 delete *it;
75 m_listBitmap.clear();
76 }
77
78
getArtBitmap(std::string uriName)79 ArtBitmap* ArtManager::getArtBitmap( std::string uriName )
80 {
81 if( !uriName.size() )
82 return NULL;
83
84 if( !m_pImageHandler )
85 return NULL;
86
87 // check whether art is already loaded
88 std::list<ArtBitmap*>::const_iterator it;
89 for( it = m_listBitmap.begin(); it != m_listBitmap.end(); ++it )
90 {
91 if( (*it)->getUriName() == uriName )
92 return *it;
93 }
94
95 // create and retain a new ArtBitmap since uri is not yet known
96 ArtBitmap* pArt = new (std::nothrow) ArtBitmap( getIntf(), m_pImageHandler, uriName );
97 if( pArt && pArt->getWidth() && pArt->getHeight() )
98 {
99 if( m_listBitmap.size() == MAX_ART_CACHED )
100 {
101 ArtBitmap* pOldest = *(m_listBitmap.begin());
102 delete pOldest;
103 m_listBitmap.pop_front();
104 }
105 m_listBitmap.push_back( pArt );
106 return pArt;
107 }
108 else
109 {
110 delete pArt;
111 return NULL;
112 }
113 }
114