src/mac/carbon/icon.cpp

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