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 and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  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 #endif
  38
  39 #include "wx/msw/private.h"
  40
  41 #if wxUSE_RESOURCE_LOADING_IN_MSW
  42     #include "wx/msw/curico.h"
  43     #include "wx/msw/curicop.h"
  44 #endif
  45
  46 // ----------------------------------------------------------------------------
  47 // wxWin macros
  48 // ----------------------------------------------------------------------------
  49
  50 IMPLEMENT_DYNAMIC_CLASS(wxIcon, wxIconBase)
  51
  52 // ============================================================================
  53 // implementation
  54 // ============================================================================
  55
  56 // ----------------------------------------------------------------------------
  57 // wxIconRefData
  58 // ----------------------------------------------------------------------------
  59
  60 void wxIconRefData::Free()
  61 {
  62     if ( m_hIcon )
  63     {
  64         ::DestroyIcon((HICON) m_hIcon);
  65
  66         m_hIcon = 0;
  67     }
  68 }
  69
  70 // ----------------------------------------------------------------------------
  71 // wxIcon
  72 // ----------------------------------------------------------------------------
  73
  74 wxIcon::wxIcon(const char bits[], int width, int height)
  75 {
  76     wxBitmap bmp(bits, width, height);
  77     CopyFromBitmap(bmp);
  78 }
  79
  80 wxIcon::wxIcon(const wxString& iconfile,
  81                long flags,
  82                int desiredWidth,
  83                int desiredHeight)
  84
  85 {
  86     LoadFile(iconfile, flags, desiredWidth, desiredHeight);
  87 }
  88
  89 wxIcon::~wxIcon()
  90 {
  91 }
  92
  93 void wxIcon::CopyFromBitmap(const wxBitmap& bmp)
  94 {
  95 #ifdef __WIN32__
  96     wxMask *mask = bmp.GetMask();
  97     if ( !mask )
  98     {
  99         // we must have a mask for an icon, so even if it's probably incorrect,
 100         // do create it (grey is the "standard" transparent colour)
 101         mask = new wxMask(bmp, *wxLIGHT_GREY);
 102     }
 103
 104     ICONINFO iconInfo;
 105     iconInfo.fIcon = TRUE;  // we want an icon, not a cursor
 106     iconInfo.hbmMask = wxInvertMask((HBITMAP)mask->GetMaskBitmap());
 107     iconInfo.hbmColor = GetHbitmapOf(bmp);
 108
 109     HICON hicon = ::CreateIconIndirect(&iconInfo);
 110     if ( !hicon )
 111     {
 112         wxLogLastError("CreateIconIndirect");
 113     }
 114     else
 115     {
 116         SetHICON((WXHICON)hicon);
 117         SetSize(bmp.GetWidth(), bmp.GetHeight());
 118     }
 119
 120     if ( !bmp.GetMask() )
 121     {
 122         // we created the mask, now delete it
 123         delete mask;
 124     }
 125 #else // Win16
 126     // there are some functions in curico.cpp which probably could be used
 127     // here...
 128     wxFAIL_MSG("not implemented");
 129 #endif // Win32/16
 130 }
 131
 132 void wxIcon::CreateIconFromXpm(const char **data)
 133 {
 134     wxBitmap bmp(data);
 135     CopyFromBitmap(bmp);
 136 }
 137
 138 bool wxIcon::LoadFile(const wxString& filename,
 139                       long type,
 140                       int desiredWidth, int desiredHeight)
 141 {
 142     UnRef();
 143
 144     wxGDIImageHandler *handler = FindHandler(type);
 145
 146     if ( !handler )
 147     {
 148         // say something?
 149         return FALSE;
 150     }
 151
 152     return handler->Load(this, filename, type, desiredWidth, desiredHeight);
 153 }
 154