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 #ifdef __WIN95__
  84     M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), cursor_file, IMAGE_CURSOR, 0, 0, 0);
  85 #else
  86     M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), cursor_file);
  87 #endif
  88     if (M_CURSORDATA->m_hCursor)
  89       M_CURSORDATA->m_ok = TRUE;
  90     else
  91       M_CURSORDATA->m_ok = FALSE;
  92   }
  93   else if (flags & wxBITMAP_TYPE_CUR)
  94   {
  95 #ifdef __WIN95__
  96     M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), cursor_file, IMAGE_CURSOR, 0, 0, LR_LOADFROMFILE);
  97 #else
  98 #if wxUSE_RESOURCE_LOADING_IN_MSW
  99     M_CURSORDATA->m_hCursor = (WXHCURSOR) ReadCursorFile(WXSTRINGCAST cursor_file, wxGetInstance(), &M_CURSORDATA->m_width, &M_CURSORDATA->m_height);
 100     M_CURSORDATA->m_destroyCursor = TRUE;
 101 #endif
 102 #endif
 103   }
 104   else if (flags & wxBITMAP_TYPE_ICO)
 105   {
 106 #if wxUSE_RESOURCE_LOADING_IN_MSW
 107     M_CURSORDATA->m_hCursor = (WXHCURSOR) IconToCursor(WXSTRINGCAST cursor_file, wxGetInstance(), hotSpotX, hotSpotY, &M_CURSORDATA->m_width, &M_CURSORDATA->m_height);
 108     M_CURSORDATA->m_destroyCursor = TRUE;
 109 #endif
 110   }
 111   else if (flags & wxBITMAP_TYPE_BMP)
 112   {
 113 #if wxUSE_RESOURCE_LOADING_IN_MSW
 114     HBITMAP hBitmap = 0;
 115     HPALETTE hPalette = 0;
 116     bool success = wxReadDIB(WXSTRINGCAST cursor_file, &hBitmap, &hPalette) != 0;
 117     if (!success)
 118       return;
 119     if (hPalette)
 120       DeleteObject(hPalette);
 121     POINT pnt;
 122     pnt.x = hotSpotX;
 123     pnt.y = hotSpotY;
 124     M_CURSORDATA->m_hCursor = (WXHCURSOR) MakeCursorFromBitmap(wxGetInstance(), hBitmap, &pnt);
 125     M_CURSORDATA->m_destroyCursor = TRUE;
 126     DeleteObject(hBitmap);
 127     if (M_CURSORDATA->m_hCursor)
 128       M_CURSORDATA->m_ok = TRUE;
 129 #endif
 130   }
 131 }
 132
 133 // Cursors by stock number
 134 wxCursor::wxCursor(int cursor_type)
 135 {
 136   m_refData = new wxCursorRefData;
 137
 138   switch (cursor_type)
 139   {
 140     case wxCURSOR_WAIT:
 141       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_WAIT);
 142       break;
 143     case wxCURSOR_IBEAM:
 144       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_IBEAM);
 145       break;
 146     case wxCURSOR_CROSS:
 147       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_CROSS);
 148       break;
 149     case wxCURSOR_SIZENWSE:
 150       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENWSE);
 151       break;
 152     case wxCURSOR_SIZENESW:
 153       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENESW);
 154       break;
 155     case wxCURSOR_SIZEWE:
 156       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZEWE);
 157       break;
 158     case wxCURSOR_SIZENS:
 159       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENS);
 160       break;
 161     case wxCURSOR_CHAR:
 162     {
 163       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 164       break;
 165     }
 166     case wxCURSOR_HAND:
 167     {
 168       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_HAND"));
 169       break;
 170     }
 171     case wxCURSOR_BULLSEYE:
 172     {
 173       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BULLSEYE"));
 174       break;
 175     }
 176     case wxCURSOR_PENCIL:
 177     {
 178       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PENCIL"));
 179       break;
 180     }
 181     case wxCURSOR_MAGNIFIER:
 182     {
 183       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_MAGNIFIER"));
 184       break;
 185     }
 186     case wxCURSOR_NO_ENTRY:
 187     {
 188       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_NO_ENTRY"));
 189       break;
 190     }
 191     case wxCURSOR_LEFT_BUTTON:
 192     {
 193       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 194       break;
 195     }
 196     case wxCURSOR_RIGHT_BUTTON:
 197     {
 198       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 199       break;
 200     }
 201     case wxCURSOR_MIDDLE_BUTTON:
 202     {
 203       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 204       break;
 205     }
 206     case wxCURSOR_SIZING:
 207     {
 208       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_SIZING"));
 209       break;
 210     }
 211     case wxCURSOR_WATCH:
 212     {
 213       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_WATCH"));
 214       break;
 215     }
 216     case wxCURSOR_SPRAYCAN:
 217     {
 218       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_ROLLER"));
 219       break;
 220     }
 221     case wxCURSOR_PAINT_BRUSH:
 222     {
 223       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PBRUSH"));
 224       break;
 225     }
 226     case wxCURSOR_POINT_LEFT:
 227     {
 228       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PLEFT"));
 229       break;
 230     }
 231     case wxCURSOR_POINT_RIGHT:
 232     {
 233       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PRIGHT"));
 234       break;
 235     }
 236     case wxCURSOR_QUESTION_ARROW:
 237     {
 238       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_QARROW"));
 239       break;
 240     }
 241     case wxCURSOR_BLANK:
 242     {
 243       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BLANK"));
 244       break;
 245     }
 246     default:
 247     case wxCURSOR_ARROW:
 248       M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 249       break;
 250   }
 251 }
 252
 253 wxCursor::~wxCursor(void)
 254 {
 255 //    FreeResource(TRUE);
 256 }
 257
 258 bool wxCursor::FreeResource(bool WXUNUSED(force))
 259 {
 260   if (M_CURSORDATA && M_CURSORDATA->m_hCursor && M_CURSORDATA->m_destroyCursor)
 261   {
 262     DestroyCursor((HCURSOR) M_CURSORDATA->m_hCursor);
 263     M_CURSORDATA->m_hCursor = 0;
 264   }
 265   return TRUE;
 266 }
 267
 268 void wxCursor::SetHCURSOR(WXHCURSOR cursor)
 269 {
 270   if ( !M_CURSORDATA )
 271     m_refData = new wxCursorRefData;
 272
 273   M_CURSORDATA->m_hCursor = cursor;
 274 }
 275
 276 // Global cursor setting
 277 void wxSetCursor(const wxCursor& cursor)
 278 {
 279     extern wxCursor *g_globalCursor;
 280
 281     if ( cursor.Ok() && cursor.GetHCURSOR() )
 282     {
 283         ::SetCursor((HCURSOR) cursor.GetHCURSOR());
 284
 285         if ( g_globalCursor )
 286             (*g_globalCursor) = cursor;
 287     }
 288 }
 289
 290