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don't crash if one of GetAllCommands() parameters is NULL (coverity checker CID 11)
[wxWidgets.git] / src / common / iconbndl.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: iconbndl.cpp
3 // Purpose: wxIconBundle
4 // Author: Mattia Barbon
5 // Created: 23.03.2002
6 // RCS-ID: $Id$
7 // Copyright: (c) Mattia barbon
8 // Licence: wxWindows licence
9 /////////////////////////////////////////////////////////////////////////////
10
11 // For compilers that support precompilation, includes "wx.h".
12 #include "wx/wxprec.h"
13
14 #ifdef __BORLANDC__
15 #pragma hdrstop
16 #endif
17
18 #ifndef WX_PRECOMP
19 #include "wx/settings.h"
20 #include "wx/icon.h"
21 #include "wx/log.h"
22 #include "wx/intl.h"
23 #include "wx/bitmap.h"
24 #endif
25
26 #if wxUSE_IMAGE && !defined(_WX_IMAGE_H_)
27 #include "wx/image.h"
28 #endif
29
30 #include "wx/iconbndl.h"
31 #include "wx/arrimpl.cpp"
32
33 WX_DEFINE_OBJARRAY(wxIconArray)
34
35 const wxIconBundle& wxIconBundle::operator =( const wxIconBundle& ic )
36 {
37 if( this == &ic ) return *this;
38
39 size_t i, max = ic.m_icons.GetCount();
40
41 DeleteIcons();
42 for( i = 0; i < max; ++i )
43 m_icons.Add( ic.m_icons[i] );
44
45 return *this;
46 }
47
48 void wxIconBundle::DeleteIcons()
49 {
50 m_icons.Empty();
51 }
52
53 #if wxUSE_IMAGE
54 void wxIconBundle::AddIcon( const wxString& file, long type )
55 #else
56 void wxIconBundle::AddIcon( const wxString& WXUNUSED(file), long WXUNUSED(type) )
57 #endif
58 {
59 #if wxUSE_IMAGE && (!defined(__WXMSW__) || wxUSE_WXDIB)
60 size_t count = wxImage::GetImageCount( file, type );
61 size_t i;
62 wxImage image;
63
64 for( i = 0; i < count; ++i )
65 {
66 if( !image.LoadFile( file, type, i ) )
67 {
68 wxLogError( _("Failed to load image %d from file '%s'."),
69 i, file.c_str() );
70 continue;
71 }
72
73 wxIcon* tmp = new wxIcon();
74 tmp->CopyFromBitmap( wxBitmap( image ) );
75 AddIcon( *tmp );
76 delete tmp;
77 }
78 #endif
79 }
80
81 const wxIcon& wxIconBundle::GetIcon( const wxSize& size ) const
82 {
83 size_t i, max = m_icons.GetCount();
84 wxCoord sysX = wxSystemSettings::GetMetric( wxSYS_ICON_X ),
85 sysY = wxSystemSettings::GetMetric( wxSYS_ICON_Y );
86
87 wxIcon *sysIcon = 0;
88 // temp. variable needed to fix Borland C++ 5.5.1 problem
89 // with passing a return value through two functions
90 wxIcon *tmp;
91
92 for( i = 0; i < max; i++ )
93 {
94 if( !m_icons[i].Ok() )
95 continue;
96 wxCoord sx = m_icons[i].GetWidth(), sy = m_icons[i].GetHeight();
97 // requested size
98 if( sx == size.x && sy == size.y )
99 {
100 tmp = &m_icons[i]; // fix for broken BCC
101 return *tmp;
102 }
103 // keep track if there is a system-size icon
104 if( sx == sysX && sy == sysY )
105 sysIcon = &m_icons[i];
106 }
107
108 // return the system-sized icon if we've got one
109 if( sysIcon ) return *sysIcon;
110 // return the first icon, if we have one
111 if( max > 0 ) // fix for broken BCC
112 tmp = &m_icons[0];
113 else
114 tmp = &wxNullIcon;
115 return *tmp;
116 }
117
118 void wxIconBundle::AddIcon( const wxIcon& icon )
119 {
120 size_t i, max = m_icons.GetCount();
121
122 for( i = 0; i < max; ++i )
123 {
124 wxIcon& tmp = m_icons[i];
125 if( tmp.Ok() && tmp.GetWidth() == icon.GetWidth() &&
126 tmp.GetHeight() == icon.GetHeight() )
127 {
128 tmp = icon;
129 return;
130 }
131 }
132
133 m_icons.Add( icon );
134 }