src/msw/cursor.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        cursor.cpp
   3 // Purpose:     wxCursor class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:       wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "cursor.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/cursor.h"
  30 #include "wx/icon.h"
  31 #endif
  32
  33 #include "wx/msw/private.h"
  34 #include "wx/msw/dib.h"
  35
  36 #include "assert.h"
  37
  38 #if wxUSE_RESOURCE_LOADING_IN_MSW
  39 #include "wx/msw/curico.h"
  40 #include "wx/msw/curicop.h"
  41 #endif
  42
  43 #if !USE_SHARED_LIBRARIES
  44 IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxBitmap)
  45 #endif
  46
  47 wxCursorRefData::wxCursorRefData(void)
  48 {
  49   m_width = 32; m_height = 32;
  50   m_hCursor = 0 ;
  51   m_destroyCursor = FALSE;
  52 }
  53
  54 wxCursorRefData::~wxCursorRefData(void)
  55 {
  56     if ( m_hCursor && m_destroyCursor)
  57 #ifdef __WXWINE__
  58         ::DestroyCursor((HCURSOR) m_hCursor);
  59 #else
  60         ::DestroyCursor((HICON) m_hCursor);
  61 #endif
  62 }
  63
  64 // Cursors
  65 wxCursor::wxCursor(void)
  66 {
  67 }
  68
  69 wxCursor::wxCursor(const char WXUNUSED(bits)[], int WXUNUSED(width), int WXUNUSED(height),
  70     int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY), const char WXUNUSED(maskBits)[])
  71 {
  72 }
  73
  74 wxCursor::wxCursor(const wxString& cursor_file, long flags, int hotSpotX, int hotSpotY)
  75 {
  76   m_refData = new wxCursorRefData;
  77
  78   M_CURSORDATA->m_destroyCursor = FALSE;
  79   M_CURSORDATA->m_hCursor = 0;
  80   M_CURSORDATA->m_ok = FALSE;
  81   if (flags & wxBITMAP_TYPE_CUR_RESOURCE)
  82   {
  83     M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), cursor_file);
  84     if (M_CURSORDATA->m_hCursor)
  85       M_CURSORDATA->m_ok = TRUE;
  86     else
  87       M_CURSORDATA->m_ok = FALSE;
  88   }
  89   else if (flags & wxBITMAP_TYPE_CUR)
  90   {
  91 #if wxUSE_RESOURCE_LOADING_IN_MSW
  92     M_CURSORDATA->m_hCursor = (WXHCURSOR) ReadCursorFile(WXSTRINGCAST cursor_file, wxGetInstance(), &M_CURSORDATA->m_width, &M_CURSORDATA->m_height);
  93     M_CURSORDATA->m_destroyCursor = TRUE;
  94 #endif
  95   }
  96   else if (flags & wxBITMAP_TYPE_ICO)
  97   {
  98 #if wxUSE_RESOURCE_LOADING_IN_MSW
  99     M_CURSORDATA->m_hCursor = (WXHCURSOR) IconToCursor(WXSTRINGCAST cursor_file, wxGetInstance(), hotSpotX, hotSpotY, &M_CURSORDATA->m_width, &M_CURSORDATA->m_height);
 100     M_CURSORDATA->m_destroyCursor = TRUE;
 101 #endif
 102   }
 103   else if (flags & wxBITMAP_TYPE_BMP)
 104   {
 105 #if wxUSE_RESOURCE_LOADING_IN_MSW
 106     HBITMAP hBitmap = 0;
 107     HPALETTE hPalette = 0;
 108     bool success = ReadDIB(WXSTRINGCAST cursor_file, &hBitmap, &hPalette) != 0;
 109     if (!success)
 110       return;
 111     if (hPalette)
 112       DeleteObject(hPalette);
 113     POINT pnt;
 114     pnt.x = hotSpotX;
 115     pnt.y = hotSpotY;
 116     M_CURSORDATA->m_hCursor = (WXHCURSOR) MakeCursorFromBitmap(wxGetInstance(), hBitmap, &pnt);
 117     M_CURSORDATA->m_destroyCursor = TRUE;
 118     DeleteObject(hBitmap);
 119     if (M_CURSORDATA->m_hCursor)
 120       M_CURSORDATA->m_ok = TRUE;
 121 #endif
 122   }
 123 }
 124
 125 // Cursors by stock number
 126 wxCursor::wxCursor(int cursor_type)
 127 {
 128   m_refData = new wxCursorRefData;
 129
 130   switch (cursor_type)
 131   {
 132     case wxCURSOR_WAIT:
 133       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_WAIT);
 134       break;
 135     case wxCURSOR_IBEAM:
 136       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_IBEAM);
 137       break;
 138     case wxCURSOR_CROSS:
 139       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_CROSS);
 140       break;
 141     case wxCURSOR_SIZENWSE:
 142       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENWSE);
 143       break;
 144     case wxCURSOR_SIZENESW:
 145       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENESW);
 146       break;
 147     case wxCURSOR_SIZEWE:
 148       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZEWE);
 149       break;
 150     case wxCURSOR_SIZENS:
 151       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENS);
 152       break;
 153     case wxCURSOR_CHAR:
 154     {
 155       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 156       break;
 157     }
 158     case wxCURSOR_HAND:
 159     {
 160       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_HAND"));
 161       break;
 162     }
 163     case wxCURSOR_BULLSEYE:
 164     {
 165       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_BULLSEYE"));
 166       break;
 167     }
 168     case wxCURSOR_PENCIL:
 169     {
 170       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_PENCIL"));
 171       break;
 172     }
 173     case wxCURSOR_MAGNIFIER:
 174     {
 175       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_MAGNIFIER"));
 176       break;
 177     }
 178     case wxCURSOR_NO_ENTRY:
 179     {
 180       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_NO_ENTRY"));
 181       break;
 182     }
 183     case wxCURSOR_LEFT_BUTTON:
 184     {
 185       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 186       break;
 187     }
 188     case wxCURSOR_RIGHT_BUTTON:
 189     {
 190       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 191       break;
 192     }
 193     case wxCURSOR_MIDDLE_BUTTON:
 194     {
 195       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 196       break;
 197     }
 198     case wxCURSOR_SIZING:
 199     {
 200       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_SIZING"));
 201       break;
 202     }
 203     case wxCURSOR_WATCH:
 204     {
 205       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_WATCH"));
 206       break;
 207     }
 208     case wxCURSOR_SPRAYCAN:
 209     {
 210       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_ROLLER"));
 211       break;
 212     }
 213     case wxCURSOR_PAINT_BRUSH:
 214     {
 215       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_PBRUSH"));
 216       break;
 217     }
 218     case wxCURSOR_POINT_LEFT:
 219     {
 220       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_PLEFT"));
 221       break;
 222     }
 223     case wxCURSOR_POINT_RIGHT:
 224     {
 225       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_PRIGHT"));
 226       break;
 227     }
 228     case wxCURSOR_QUESTION_ARROW:
 229     {
 230       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_QARROW"));
 231       break;
 232     }
 233     case wxCURSOR_BLANK:
 234     {
 235       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_BLANK"));
 236       break;
 237     }
 238     default:
 239     case wxCURSOR_ARROW:
 240       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 241       break;
 242   }
 243 }
 244
 245 wxCursor::~wxCursor(void)
 246 {
 247 //    FreeResource(TRUE);
 248 }
 249
 250 bool wxCursor::FreeResource(bool WXUNUSED(force))
 251 {
 252   if (M_CURSORDATA && M_CURSORDATA->m_hCursor && M_CURSORDATA->m_destroyCursor)
 253   {
 254     DestroyCursor((HCURSOR) M_CURSORDATA->m_hCursor);
 255     M_CURSORDATA->m_hCursor = 0;
 256   }
 257   return TRUE;
 258 }
 259
 260 void wxCursor::SetHCURSOR(WXHCURSOR cursor)
 261 {
 262   if ( !M_CURSORDATA )
 263     m_refData = new wxCursorRefData;
 264
 265   M_CURSORDATA->m_hCursor = cursor;
 266 }
 267
 268 // Global cursor setting
 269 void wxSetCursor(const wxCursor& cursor)
 270 {
 271     extern wxCursor *g_globalCursor;
 272
 273     if ( cursor.Ok() && cursor.GetHCURSOR() )
 274     {
 275         ::SetCursor((HCURSOR) cursor.GetHCURSOR());
 276
 277         if ( g_globalCursor )
 278             (*g_globalCursor) = cursor;
 279     }
 280 }
 281
 282