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_RESOURCE_LOADING_IN_MSW
  36 #include "wx/msw/curico.h"
  37 #include "wx/msw/curicop.h"
  38 #endif
  39
  40 #if !USE_SHARED_LIBRARIES
  41 IMPLEMENT_DYNAMIC_CLASS(wxIcon, wxBitmap)
  42 IMPLEMENT_DYNAMIC_CLASS(wxICOFileHandler, wxBitmapHandler)
  43 IMPLEMENT_DYNAMIC_CLASS(wxICOResourceHandler, wxBitmapHandler)
  44 #endif
  45
  46 /*
  47  * Icons
  48  */
  49
  50
  51 wxIconRefData::wxIconRefData(void)
  52 {
  53   m_hIcon = (WXHICON) NULL ;
  54 }
  55
  56 wxIconRefData::~wxIconRefData(void)
  57 {
  58   if ( m_hIcon )
  59     ::DestroyIcon((HICON) m_hIcon);
  60 }
  61
  62 wxIcon::wxIcon(void)
  63 {
  64 }
  65
  66 wxIcon::wxIcon(const char WXUNUSED(bits)[], int WXUNUSED(width), int WXUNUSED(height))
  67 {
  68 }
  69
  70 wxIcon::wxIcon(const wxString& icon_file, long flags,
  71     int desiredWidth, int desiredHeight)
  72
  73 {
  74   LoadFile(icon_file, flags, desiredWidth, desiredHeight);
  75 }
  76
  77 wxIcon::~wxIcon(void)
  78 {
  79 }
  80
  81 bool wxIcon::FreeResource(bool force)
  82 {
  83   if (M_ICONDATA && M_ICONDATA->m_hIcon)
  84   {
  85     DestroyIcon((HICON) M_ICONDATA->m_hIcon);
  86   M_ICONDATA->m_hIcon = (WXHICON) NULL;
  87   }
  88   return TRUE;
  89 }
  90
  91 bool wxIcon::LoadFile(const wxString& filename, long type,
  92     int desiredWidth, int desiredHeight)
  93 {
  94   UnRef();
  95
  96   m_refData = new wxIconRefData;
  97
  98   wxBitmapHandler *handler = FindHandler(type);
  99
 100   if ( handler )
 101   return handler->LoadFile(this, filename, type, desiredWidth, desiredHeight);
 102   else
 103   return FALSE;
 104 }
 105
 106 void wxIcon::SetHICON(WXHICON ico)
 107 {
 108   if ( !M_ICONDATA )
 109   m_refData = new wxIconRefData;
 110
 111   M_ICONDATA->m_hIcon = ico;
 112 }
 113
 114 bool wxICOFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 115     int desiredWidth, int desiredHeight)
 116 {
 117 #if wxUSE_RESOURCE_LOADING_IN_MSW
 118   if ( bitmap->IsKindOf(CLASSINFO(wxIcon)) )
 119   {
 120     wxIcon *icon = (wxIcon *)bitmap;
 121     wxIconRefData *data = (wxIconRefData *)icon->GetRefData();
 122     data->m_hIcon = (WXHICON)ReadIconFile((char *)name.c_str(), wxGetInstance(),
 123                                           &data->m_width, &data->m_height);
 124
 125     data->m_ok = data->m_hIcon != 0;
 126     return data->m_ok;
 127   }
 128   else
 129     return FALSE;
 130 #else
 131   return FALSE;
 132 #endif
 133 }
 134
 135 bool wxICOResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 136     int desiredWidth, int desiredHeight)
 137 {
 138   if ( bitmap->IsKindOf(CLASSINFO(wxIcon)) )
 139   {
 140 #if defined(__WIN32__) && !defined(__SC__)
 141     if (desiredWidth > -1 && desiredHeight > -1)
 142     {
 143         M_ICONHANDLERDATA->m_hIcon = (WXHICON) ::LoadImage(wxGetInstance(), name, IMAGE_ICON, desiredWidth, desiredHeight, LR_DEFAULTCOLOR);
 144     }
 145     else
 146 #endif
 147     {
 148       M_ICONHANDLERDATA->m_hIcon = (WXHICON) ::LoadIcon(wxGetInstance(), name);
 149     }
 150
 151 #ifdef __WIN32__
 152       // Win32s doesn't have GetIconInfo function...
 153       if (M_ICONHANDLERDATA->m_hIcon && wxGetOsVersion()!=wxWIN32S)
 154       {
 155           ICONINFO info ;
 156           if (::GetIconInfo((HICON) M_ICONHANDLERDATA->m_hIcon, &info))
 157           {
 158             HBITMAP ms_bitmap = info.hbmMask ;
 159             if (ms_bitmap)
 160             {
 161                 BITMAP bm;
 162                 ::GetObject(ms_bitmap, sizeof(BITMAP), (LPSTR) &bm);
 163                 M_ICONHANDLERDATA->m_width = bm.bmWidth;
 164                 M_ICONHANDLERDATA->m_height = bm.bmHeight;
 165             }
 166             if (info.hbmMask)
 167                 ::DeleteObject(info.hbmMask) ;
 168             if (info.hbmColor)
 169                 ::DeleteObject(info.hbmColor) ;
 170           }
 171       }
 172 #else
 173       M_ICONHANDLERDATA->m_width = 32;
 174       M_ICONHANDLERDATA->m_height = 32;
 175 #endif
 176       // Override the found values with desired values
 177       if (desiredWidth > -1 && desiredHeight > -1)
 178       {
 179           M_ICONHANDLERDATA->m_width = desiredWidth;
 180           M_ICONHANDLERDATA->m_height = desiredHeight;
 181       }
 182
 183       M_ICONHANDLERDATA->m_ok = (M_ICONHANDLERDATA->m_hIcon != 0);
 184       return M_ICONHANDLERDATA->m_ok;
 185   }
 186   else
 187       return FALSE;
 188 }
 189