src/msw/icon.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/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 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/defs.h"
  29     #include "wx/list.h"
  30     #include "wx/utils.h"
  31     #include "wx/app.h"
  32     #include "wx/icon.h"
  33     #include "wx/bitmap.h"
  34     #include "wx/log.h"
  35 #endif
  36
  37 #include "wx/msw/private.h"
  38
  39 // ----------------------------------------------------------------------------
  40 // wxWin macros
  41 // ----------------------------------------------------------------------------
  42
  43 IMPLEMENT_DYNAMIC_CLASS(wxIcon, wxGDIObject)
  44
  45 // ============================================================================
  46 // implementation
  47 // ============================================================================
  48
  49 // ----------------------------------------------------------------------------
  50 // wxIconRefData
  51 // ----------------------------------------------------------------------------
  52
  53 void wxIconRefData::Free()
  54 {
  55     if ( m_hIcon )
  56     {
  57 #ifndef __WXMICROWIN__
  58         ::DestroyIcon((HICON) m_hIcon);
  59 #endif
  60
  61         m_hIcon = 0;
  62     }
  63 }
  64
  65 // ----------------------------------------------------------------------------
  66 // wxIcon
  67 // ----------------------------------------------------------------------------
  68
  69 wxIcon::wxIcon(const char bits[], int width, int height)
  70 {
  71     wxBitmap bmp(bits, width, height);
  72     CopyFromBitmap(bmp);
  73 }
  74
  75 wxIcon::wxIcon(const wxString& iconfile,
  76                long flags,
  77                int desiredWidth,
  78                int desiredHeight)
  79
  80 {
  81     LoadFile(iconfile, flags, desiredWidth, desiredHeight);
  82 }
  83
  84 wxIcon::wxIcon(const wxIconLocation& loc)
  85 {
  86     // wxICOFileHandler accepts names in the format "filename;index"
  87     wxString fullname = loc.GetFileName();
  88     if ( loc.GetIndex() )
  89     {
  90         fullname << _T(';') << loc.GetIndex();
  91     }
  92     //else: 0 is default
  93
  94     LoadFile(fullname, wxBITMAP_TYPE_ICO);
  95 }
  96
  97 wxIcon::~wxIcon()
  98 {
  99 }
 100
 101 wxObjectRefData *wxIcon::CloneRefData(const wxObjectRefData *dataOrig) const
 102 {
 103     const wxIconRefData *
 104         data = wx_static_cast(const wxIconRefData *, dataOrig);
 105     if ( !data )
 106         return NULL;
 107
 108     // we don't have to copy m_hIcon because we're only called from SetHICON()
 109     // which overwrites m_hIcon anyhow currently
 110     //
 111     // and if we're called from SetWidth/Height/Depth(), it doesn't make sense
 112     // to copy it neither as the handle would be inconsistent with the new size
 113     return new wxIconRefData(*data);
 114 }
 115
 116 void wxIcon::CopyFromBitmap(const wxBitmap& bmp)
 117 {
 118 #ifndef __WXMICROWIN__
 119     HICON hicon = wxBitmapToHICON(bmp);
 120     if ( !hicon )
 121     {
 122         wxLogLastError(wxT("CreateIconIndirect"));
 123     }
 124     else
 125     {
 126         SetHICON((WXHICON)hicon);
 127         SetSize(bmp.GetWidth(), bmp.GetHeight());
 128     }
 129 #endif // __WXMICROWIN__
 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 }