src/common/iconbndl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/iconbndl.cpp
   3 // Purpose:     wxIconBundle
   4 // Author:      Mattia Barbon, Vadim Zeitlin
   5 // Created:     23.03.2002
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Mattia barbon
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // For compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #include "wx/iconbndl.h"
  27
  28 #ifndef WX_PRECOMP
  29     #include "wx/settings.h"
  30     #include "wx/icon.h"
  31     #include "wx/log.h"
  32     #include "wx/intl.h"
  33     #include "wx/bitmap.h"
  34     #include "wx/image.h"
  35 #endif
  36
  37 #include "wx/arrimpl.cpp"
  38
  39 WX_DEFINE_OBJARRAY(wxIconArray)
  40
  41 IMPLEMENT_DYNAMIC_CLASS(wxIconBundle, wxGDIObject)
  42
  43 #define M_ICONBUNDLEDATA ((wxIconBundleRefData *)m_refData)
  44
  45 // ----------------------------------------------------------------------------
  46 // wxIconBundleRefData
  47 // ----------------------------------------------------------------------------
  48
  49 class WXDLLEXPORT wxIconBundleRefData : public wxGDIRefData
  50 {
  51 public:
  52     // default and copy ctors and assignment operators are ok
  53
  54 protected:
  55     wxIconArray m_icons;
  56
  57     friend class WXDLLEXPORT wxIconBundle;
  58 };
  59
  60 // ============================================================================
  61 // wxIconBundle implementation
  62 // ============================================================================
  63
  64 wxIconBundle::wxIconBundle()
  65             : wxGDIObject()
  66 {
  67 }
  68
  69 wxIconBundle::wxIconBundle(const wxString& file, long type)
  70             : wxGDIObject()
  71 {
  72     AddIcon(file, type);
  73 }
  74
  75 wxIconBundle::wxIconBundle(const wxIconBundle& icon)
  76             : wxGDIObject()
  77 {
  78     Ref(icon);
  79 }
  80
  81 wxIconBundle::wxIconBundle(const wxIcon& icon)
  82             : wxGDIObject()
  83 {
  84     AddIcon(icon);
  85 }
  86
  87 wxObjectRefData *wxIconBundle::CreateRefData() const
  88 {
  89     return new wxIconBundleRefData;
  90 }
  91
  92 wxObjectRefData *wxIconBundle::CloneRefData(const wxObjectRefData *data) const
  93 {
  94     return new wxIconBundleRefData(*wx_static_cast(const wxIconBundleRefData *, data));
  95 }
  96
  97 void wxIconBundle::DeleteIcons()
  98 {
  99     UnRef();
 100 }
 101
 102 bool wxIconBundle::IsOk() const
 103 {
 104     return M_ICONBUNDLEDATA && !M_ICONBUNDLEDATA->m_icons.IsEmpty();
 105 }
 106
 107 void wxIconBundle::AddIcon(const wxString& file, long type)
 108 {
 109 #ifdef __WXMAC__
 110     // Deal with standard icons
 111     if ( type == wxBITMAP_TYPE_ICON_RESOURCE )
 112     {
 113         wxIcon tmp(file, type);
 114         if (tmp.Ok())
 115         {
 116             AddIcon(tmp);
 117             return;
 118         }
 119     }
 120 #endif // __WXMAC__
 121
 122 #if wxUSE_IMAGE && (!defined(__WXMSW__) || wxUSE_WXDIB)
 123     wxImage image;
 124
 125     const size_t count = wxImage::GetImageCount( file, type );
 126     for ( size_t i = 0; i < count; ++i )
 127     {
 128         if ( !image.LoadFile( file, type, i ) )
 129         {
 130             wxLogError( _("Failed to load image %d from file '%s'."),
 131                         i, file.c_str() );
 132             continue;
 133         }
 134
 135         wxIcon tmp;
 136         tmp.CopyFromBitmap(wxBitmap(image));
 137         AddIcon(tmp);
 138     }
 139 #else // !wxUSE_IMAGE
 140     wxUnusedVar(file);
 141     wxUnusedVar(type);
 142 #endif // wxUSE_IMAGE/!wxUSE_IMAGE
 143 }
 144
 145 wxIcon wxIconBundle::GetIcon(const wxSize& size) const
 146 {
 147     const size_t count = GetIconCount();
 148
 149     // optimize for the common case of icon bundles containing one icon only
 150     wxIcon iconBest;
 151     switch ( count )
 152     {
 153         case 0:
 154             // nothing to do, iconBest is already invalid
 155             break;
 156
 157         case 1:
 158             iconBest = M_ICONBUNDLEDATA->m_icons[0];
 159             break;
 160
 161         default:
 162             // there is more than one icon, find the best match:
 163             wxCoord sysX = wxSystemSettings::GetMetric( wxSYS_ICON_X ),
 164                     sysY = wxSystemSettings::GetMetric( wxSYS_ICON_Y );
 165
 166             const wxIconArray& iconArray = M_ICONBUNDLEDATA->m_icons;
 167             for ( size_t i = 0; i < count; i++ )
 168             {
 169                 const wxIcon& icon = iconArray[i];
 170                 wxCoord sx = icon.GetWidth(),
 171                         sy = icon.GetHeight();
 172
 173                 // if we got an icon of exactly the requested size, we're done
 174                 if ( sx == size.x && sy == size.y )
 175                 {
 176                     iconBest = icon;
 177                     break;
 178                 }
 179
 180                 // the best icon is by default (arbitrarily) the first one but
 181                 // if we find a system-sized icon, take it instead
 182                 if ( sx == sysX && sy == sysY || !iconBest.IsOk() )
 183                     iconBest = icon;
 184             }
 185     }
 186
 187 #ifdef __WXMAC__
 188     return wxIcon(iconBest.GetHICON(), size);
 189 #else
 190     return iconBest;
 191 #endif
 192 }
 193
 194 void wxIconBundle::AddIcon(const wxIcon& icon)
 195 {
 196     wxCHECK_RET( icon.IsOk(), _T("invalid icon") );
 197
 198     AllocExclusive();
 199
 200     wxIconArray& iconArray = M_ICONBUNDLEDATA->m_icons;
 201
 202     // replace existing icon with the same size if we already have it
 203     const size_t count = iconArray.size();
 204     for ( size_t i = 0; i < count; ++i )
 205     {
 206         wxIcon& tmp = iconArray[i];
 207         if ( tmp.Ok() &&
 208                 tmp.GetWidth() == icon.GetWidth() &&
 209                 tmp.GetHeight() == icon.GetHeight() )
 210         {
 211             tmp = icon;
 212             return;
 213         }
 214     }
 215
 216     // if we don't, add an icon with new size
 217     iconArray.Add(icon);
 218 }
 219
 220 size_t wxIconBundle::GetIconCount() const
 221 {
 222     return IsOk() ? M_ICONBUNDLEDATA->m_icons.size() : 0;
 223 }
 224
 225 wxIcon wxIconBundle::GetIconByIndex(size_t n) const
 226 {
 227     wxCHECK_MSG( n < GetIconCount(), wxNullIcon, _T("invalid index") );
 228
 229     return M_ICONBUNDLEDATA->m_icons[n];
 230 }
 231