src/mac/carbon/icon.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/icon.cpp
   3 // Purpose:     wxIcon class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/icon.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/image.h"
  18 #endif
  19
  20 #include "wx/mac/private.h"
  21
  22 IMPLEMENT_DYNAMIC_CLASS(wxIcon, wxBitmap)
  23
  24 #define M_ICONDATA ((wxIconRefData *)m_refData)
  25
  26
  27 wxIcon::wxIcon()
  28 {
  29 }
  30
  31 wxIcon::wxIcon( const char bits[], int width, int height )
  32 {
  33     wxBitmap bmp( bits, width, height ) ;
  34     CopyFromBitmap( bmp ) ;
  35 }
  36
  37 wxIcon::wxIcon( const char **bits )
  38 {
  39     wxBitmap bmp( bits ) ;
  40     CopyFromBitmap( bmp ) ;
  41 }
  42
  43 wxIcon::wxIcon( char **bits )
  44 {
  45     wxBitmap bmp( bits ) ;
  46     CopyFromBitmap( bmp ) ;
  47 }
  48
  49 wxIcon::wxIcon(
  50     const wxString& icon_file, int flags,
  51     int desiredWidth, int desiredHeight )
  52 {
  53     LoadFile( icon_file, (wxBitmapType) flags, desiredWidth, desiredHeight );
  54 }
  55
  56 wxIcon::~wxIcon()
  57 {
  58 }
  59
  60 WXHICON wxIcon::GetHICON() const
  61 {
  62     wxASSERT( Ok() ) ;
  63
  64     return (WXHICON) ((wxIconRefData*)m_refData)->GetHICON() ;
  65 }
  66
  67 int wxIcon::GetWidth() const
  68 {
  69    wxCHECK_MSG( Ok(), -1, wxT("invalid icon") );
  70
  71    return M_ICONDATA->GetWidth();
  72 }
  73
  74 int wxIcon::GetHeight() const
  75 {
  76    wxCHECK_MSG( Ok(), -1, wxT("invalid icon") );
  77
  78    return M_ICONDATA->GetHeight();
  79 }
  80
  81 int wxIcon::GetDepth() const
  82 {
  83     return 32;
  84 }
  85
  86 void wxIcon::SetDepth( int depth )
  87 {
  88 }
  89
  90 void wxIcon::SetWidth( int width )
  91 {
  92 }
  93
  94 void wxIcon::SetHeight( int height )
  95 {
  96 }
  97
  98 bool wxIcon::IsOk() const
  99 {
 100     return m_refData != NULL ;
 101 }
 102
 103 bool wxIcon::LoadFile(
 104     const wxString& filename, wxBitmapType type,
 105     int desiredWidth, int desiredHeight )
 106 {
 107     UnRef();
 108
 109     if ( type == wxBITMAP_TYPE_ICON_RESOURCE )
 110     {
 111         OSType theId = 0 ;
 112
 113         if ( filename == wxT("wxICON_INFORMATION") )
 114         {
 115             theId = kAlertNoteIcon ;
 116         }
 117         else if ( filename == wxT("wxICON_QUESTION") )
 118         {
 119             theId = kAlertCautionIcon ;
 120         }
 121         else if ( filename == wxT("wxICON_WARNING") )
 122         {
 123             theId = kAlertCautionIcon ;
 124         }
 125         else if ( filename == wxT("wxICON_ERROR") )
 126         {
 127             theId = kAlertStopIcon ;
 128         }
 129         else
 130         {
 131 #if 0
 132             Str255 theName ;
 133             OSType theType ;
 134             wxMacStringToPascal( name , theName ) ;
 135
 136             Handle resHandle = GetNamedResource( 'cicn' , theName ) ;
 137             if ( resHandle != 0L )
 138             {
 139                 GetResInfo( resHandle , &theId , &theType , theName ) ;
 140                 ReleaseResource( resHandle ) ;
 141             }
 142 #endif
 143         }
 144
 145         if ( theId != 0 )
 146         {
 147             IconRef iconRef = NULL ;
 148             verify_noerr( GetIconRef( kOnSystemDisk, kSystemIconsCreator, theId, &iconRef ) ) ;
 149             if ( iconRef )
 150             {
 151                 m_refData = new wxIconRefData( (WXHICON) iconRef ) ;
 152
 153                 return true ;
 154             }
 155         }
 156
 157         return false ;
 158     }
 159     else
 160     {
 161         wxBitmapHandler *handler = wxBitmap::FindHandler( type );
 162
 163         if ( handler )
 164         {
 165             wxBitmap bmp ;
 166             if ( handler->LoadFile( &bmp , filename, type, desiredWidth, desiredHeight ))
 167             {
 168                 CopyFromBitmap( bmp ) ;
 169
 170                 return true ;
 171             }
 172
 173             return false ;
 174         }
 175         else
 176         {
 177 #if wxUSE_IMAGE
 178             wxImage loadimage( filename, type );
 179             if (loadimage.Ok())
 180             {
 181                 if ( desiredWidth == -1 )
 182                     desiredWidth = loadimage.GetWidth() ;
 183                 if ( desiredHeight == -1 )
 184                     desiredHeight = loadimage.GetHeight() ;
 185                 if ( desiredWidth != loadimage.GetWidth() || desiredHeight != loadimage.GetHeight() )
 186                     loadimage.Rescale( desiredWidth , desiredHeight ) ;
 187
 188                 wxBitmap bmp( loadimage );
 189                 CopyFromBitmap( bmp ) ;
 190
 191                 return true;
 192             }
 193 #endif
 194         }
 195     }
 196     return true ;
 197 }
 198
 199 void wxIcon::CopyFromBitmap( const wxBitmap& bmp )
 200 {
 201     UnRef() ;
 202
 203     // as the bitmap owns that ref, we have to acquire it as well
 204     IconRef iconRef = bmp.GetBitmapData()->GetIconRef() ;
 205     AcquireIconRef( iconRef ) ;
 206
 207     m_refData = new wxIconRefData( (WXHICON) iconRef ) ;
 208     M_ICONDATA->SetWidth( bmp.GetWidth() ) ;
 209     M_ICONDATA->SetHeight( bmp.GetHeight() ) ;
 210 }
 211
 212 wxIconRefData::wxIconRefData( WXHICON icon )
 213 {
 214     m_iconRef = MAC_WXHICON( icon ) ;
 215
 216     // Standard sizes
 217     SetWidth( 32 ) ;
 218     SetHeight( 32 ) ;
 219 }
 220
 221 void wxIconRefData::Init()
 222 {
 223     m_iconRef = NULL ;
 224 }
 225
 226 void wxIconRefData::Free()
 227 {
 228     if ( m_iconRef )
 229     {
 230         ReleaseIconRef( m_iconRef ) ;
 231         m_iconRef = NULL ;
 232     }
 233 }
 234
 235 IMPLEMENT_DYNAMIC_CLASS(wxICONResourceHandler, wxBitmapHandler)
 236
 237 bool  wxICONResourceHandler::LoadFile(
 238     wxBitmap *bitmap, const wxString& name, long flags,
 239     int desiredWidth, int desiredHeight )
 240 {
 241     wxIcon icon ;
 242     icon.LoadFile( name , wxBITMAP_TYPE_ICON_RESOURCE , desiredWidth , desiredHeight ) ;
 243     bitmap->CopyFromIcon( icon ) ;
 244
 245     return bitmap->Ok() ;
 246 }
 247