src/msw/icon.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        icon.cpp
   3 // Purpose:     wxIcon class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "icon.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include <stdio.h>
  25 #include "wx/setup.h"
  26 #include "wx/list.h"
  27 #include "wx/utils.h"
  28 #include "wx/app.h"
  29 #include "wx/icon.h"
  30 #endif
  31
  32 #include "wx/msw/private.h"
  33 #include "assert.h"
  34
  35 #if wxUSE_XPM_IN_MSW
  36 #define FOR_MSW 1
  37 #include "../src/xpm/xpm34.h"
  38 #endif
  39
  40 #if wxUSE_RESOURCE_LOADING_IN_MSW
  41 #include "wx/msw/curico.h"
  42 #include "wx/msw/curicop.h"
  43 #endif
  44
  45 #if !USE_SHARED_LIBRARIES
  46 IMPLEMENT_DYNAMIC_CLASS(wxIcon, wxBitmap)
  47 IMPLEMENT_DYNAMIC_CLASS(wxICOFileHandler, wxBitmapHandler)
  48 IMPLEMENT_DYNAMIC_CLASS(wxICOResourceHandler, wxBitmapHandler)
  49 #endif
  50
  51 /*
  52  * Icons
  53  */
  54
  55
  56 wxIconRefData::wxIconRefData(void)
  57 {
  58   m_hIcon = (WXHICON) NULL ;
  59 }
  60
  61 wxIconRefData::~wxIconRefData(void)
  62 {
  63   if ( m_hIcon )
  64     ::DestroyIcon((HICON) m_hIcon);
  65 }
  66
  67 wxIcon::wxIcon(void)
  68 {
  69 }
  70
  71 wxIcon::wxIcon(const char WXUNUSED(bits)[], int WXUNUSED(width), int WXUNUSED(height))
  72 {
  73 }
  74
  75 wxIcon::wxIcon(const wxString& icon_file, long flags,
  76     int desiredWidth, int desiredHeight)
  77
  78 {
  79   LoadFile(icon_file, flags, desiredWidth, desiredHeight);
  80 }
  81
  82 wxIcon::~wxIcon(void)
  83 {
  84 }
  85
  86 bool wxIcon::FreeResource(bool force)
  87 {
  88   if (M_ICONDATA && M_ICONDATA->m_hIcon)
  89   {
  90     DestroyIcon((HICON) M_ICONDATA->m_hIcon);
  91   M_ICONDATA->m_hIcon = (WXHICON) NULL;
  92   }
  93   return TRUE;
  94 }
  95
  96 bool wxIcon::LoadFile(const wxString& filename, long type,
  97     int desiredWidth, int desiredHeight)
  98 {
  99   UnRef();
 100
 101   m_refData = new wxIconRefData;
 102
 103   wxBitmapHandler *handler = FindHandler(type);
 104
 105   if ( handler )
 106   return handler->LoadFile(this, filename, type, desiredWidth, desiredHeight);
 107   else
 108   return FALSE;
 109 }
 110
 111 void wxIcon::SetHICON(WXHICON ico)
 112 {
 113   if ( !M_ICONDATA )
 114   m_refData = new wxIconRefData;
 115
 116   M_ICONDATA->m_hIcon = ico;
 117 }
 118
 119 bool wxICOFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 120     int desiredWidth, int desiredHeight)
 121 {
 122 #if wxUSE_RESOURCE_LOADING_IN_MSW
 123   if ( bitmap->IsKindOf(CLASSINFO(wxIcon)) )
 124   {
 125     wxIcon *icon = (wxIcon *)bitmap;
 126     wxIconRefData *data = (wxIconRefData *)icon->GetRefData();
 127     data->m_hIcon = (WXHICON)ReadIconFile((char *)name.c_str(), wxGetInstance(),
 128                                           &data->m_width, &data->m_height);
 129
 130     data->m_ok = data->m_hIcon != 0;
 131     return data->m_ok;
 132   }
 133   else
 134     return FALSE;
 135 #else
 136   return FALSE;
 137 #endif
 138 }
 139
 140 bool wxICOResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 141     int desiredWidth, int desiredHeight)
 142 {
 143   if ( bitmap->IsKindOf(CLASSINFO(wxIcon)) )
 144   {
 145 #if defined(__WIN32__)
 146     if (desiredWidth > -1 && desiredHeight > -1)
 147     {
 148         M_ICONHANDLERDATA->m_hIcon = (WXHICON) ::LoadImage(wxGetInstance(), name, IMAGE_ICON, desiredWidth, desiredHeight, LR_DEFAULTCOLOR);
 149     }
 150     else
 151 #endif
 152     {
 153       M_ICONHANDLERDATA->m_hIcon = (WXHICON) ::LoadIcon(wxGetInstance(), name);
 154     }
 155
 156 #ifdef __WIN32__
 157       // Win32s doesn't have GetIconInfo function...
 158       if (M_ICONHANDLERDATA->m_hIcon && wxGetOsVersion()!=wxWIN32S)
 159       {
 160           ICONINFO info ;
 161           if (::GetIconInfo((HICON) M_ICONHANDLERDATA->m_hIcon, &info))
 162           {
 163             HBITMAP ms_bitmap = info.hbmMask ;
 164             if (ms_bitmap)
 165             {
 166                 BITMAP bm;
 167                 ::GetObject(ms_bitmap, sizeof(BITMAP), (LPSTR) &bm);
 168                 M_ICONHANDLERDATA->m_width = bm.bmWidth;
 169                 M_ICONHANDLERDATA->m_height = bm.bmHeight;
 170             }
 171             if (info.hbmMask)
 172                 ::DeleteObject(info.hbmMask) ;
 173             if (info.hbmColor)
 174                 ::DeleteObject(info.hbmColor) ;
 175           }
 176       }
 177 #else
 178       M_ICONHANDLERDATA->m_width = 32;
 179       M_ICONHANDLERDATA->m_height = 32;
 180 #endif
 181       // Override the found values with desired values
 182       if (desiredWidth > -1 && desiredHeight > -1)
 183       {
 184           M_ICONHANDLERDATA->m_width = desiredWidth;
 185           M_ICONHANDLERDATA->m_height = desiredHeight;
 186       }
 187
 188       M_ICONHANDLERDATA->m_ok = (M_ICONHANDLERDATA->m_hIcon != 0);
 189       return M_ICONHANDLERDATA->m_ok;
 190   }
 191   else
 192       return FALSE;
 193 }
 194