src/msw/icon.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/icon.cpp
   3 // Purpose:     wxIcon class
   4 // Author:      Julian Smart
   5 // Modified by: 20.11.99 (VZ): don't derive from wxBitmap any more
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "icon.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/defs.h"
  33     #include "wx/list.h"
  34     #include "wx/utils.h"
  35     #include "wx/app.h"
  36     #include "wx/icon.h"
  37     #include "wx/bitmap.h"
  38     #include "wx/log.h"
  39 #endif
  40
  41 #include "wx/msw/private.h"
  42
  43 // ----------------------------------------------------------------------------
  44 // wxWin macros
  45 // ----------------------------------------------------------------------------
  46
  47 IMPLEMENT_DYNAMIC_CLASS(wxIcon, wxGDIObject)
  48
  49 // ============================================================================
  50 // implementation
  51 // ============================================================================
  52
  53 // ----------------------------------------------------------------------------
  54 // wxIconRefData
  55 // ----------------------------------------------------------------------------
  56
  57 void wxIconRefData::Free()
  58 {
  59     if ( m_hIcon )
  60     {
  61 #ifndef __WXMICROWIN__
  62         ::DestroyIcon((HICON) m_hIcon);
  63 #endif
  64
  65         m_hIcon = 0;
  66     }
  67 }
  68
  69 // ----------------------------------------------------------------------------
  70 // wxIcon
  71 // ----------------------------------------------------------------------------
  72
  73 wxIcon::wxIcon(const char bits[], int width, int height)
  74 {
  75     wxBitmap bmp(bits, width, height);
  76     CopyFromBitmap(bmp);
  77 }
  78
  79 wxIcon::wxIcon(const wxString& iconfile,
  80                long flags,
  81                int desiredWidth,
  82                int desiredHeight)
  83
  84 {
  85     LoadFile(iconfile, flags, desiredWidth, desiredHeight);
  86 }
  87
  88 wxIcon::wxIcon(const wxIconLocation& loc)
  89 {
  90     // wxICOFileHandler accepts names in the format "filename;index"
  91     wxString fullname = loc.GetFileName();
  92     if ( loc.GetIndex() )
  93     {
  94         fullname << _T(';') << loc.GetIndex();
  95     }
  96     //else: 0 is default
  97
  98     LoadFile(fullname, wxBITMAP_TYPE_ICO);
  99 }
 100
 101 wxIcon::~wxIcon()
 102 {
 103 }
 104
 105 wxObjectRefData *wxIcon::CloneRefData(const wxObjectRefData *dataOrig) const
 106 {
 107     const wxIconRefData *
 108         data = wx_static_cast(const wxIconRefData *, dataOrig);
 109     if ( !data )
 110         return NULL;
 111
 112     // we don't have to copy m_hIcon because we're only called from SetHICON()
 113     // which overwrites m_hIcon anyhow currently
 114     //
 115     // and if we're called from SetWidth/Height/Depth(), it doesn't make sense
 116     // to copy it neither as the handle would be inconsistent with the new size
 117     return new wxIconRefData(*data);
 118 }
 119
 120 void wxIcon::CopyFromBitmap(const wxBitmap& bmp)
 121 {
 122 #ifndef __WXMICROWIN__
 123     HICON hicon = wxBitmapToHICON(bmp);
 124     if ( !hicon )
 125     {
 126         wxLogLastError(wxT("CreateIconIndirect"));
 127     }
 128     else
 129     {
 130         SetHICON((WXHICON)hicon);
 131         SetSize(bmp.GetWidth(), bmp.GetHeight());
 132     }
 133 #endif // __WXMICROWIN__
 134 }
 135
 136 void wxIcon::CreateIconFromXpm(const char **data)
 137 {
 138     wxBitmap bmp(data);
 139     CopyFromBitmap(bmp);
 140 }
 141
 142 bool wxIcon::LoadFile(const wxString& filename,
 143                       long type,
 144                       int desiredWidth, int desiredHeight)
 145 {
 146     UnRef();
 147
 148     wxGDIImageHandler *handler = FindHandler(type);
 149
 150     if ( !handler )
 151     {
 152         // say something?
 153         return false;
 154     }
 155
 156     return handler->Load(this, filename, type, desiredWidth, desiredHeight);
 157 }
 158