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 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "cursor.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/list.h"
  33     #include "wx/utils.h"
  34     #include "wx/app.h"
  35     #include "wx/bitmap.h"
  36     #include "wx/icon.h"
  37     #include "wx/cursor.h"
  38 #endif
  39
  40 #include "wx/msw/private.h"
  41 #include "wx/msw/dib.h"
  42
  43 #if wxUSE_RESOURCE_LOADING_IN_MSW
  44     #include "wx/msw/curico.h"
  45     #include "wx/msw/curicop.h"
  46 #endif
  47
  48 // ----------------------------------------------------------------------------
  49 // wxWin macros
  50 // ----------------------------------------------------------------------------
  51
  52 #if !USE_SHARED_LIBRARIES
  53     IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxCursorBase)
  54 #endif
  55
  56 // ----------------------------------------------------------------------------
  57 // wxCursorRefData
  58 // ----------------------------------------------------------------------------
  59
  60 wxCursorRefData::wxCursorRefData()
  61 {
  62   m_width = 32;
  63   m_height = 32;
  64
  65   m_destroyCursor = FALSE;
  66 }
  67
  68 void wxCursorRefData::Free()
  69 {
  70     if ( m_hCursor && m_destroyCursor )
  71         ::DestroyCursor((HCURSOR)m_hCursor);
  72 }
  73
  74 // ----------------------------------------------------------------------------
  75 // Cursors
  76 // ----------------------------------------------------------------------------
  77
  78 wxCursor::wxCursor()
  79 {
  80 }
  81
  82 wxCursor::wxCursor(const char WXUNUSED(bits)[],
  83                    int WXUNUSED(width),
  84                    int WXUNUSED(height),
  85                    int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY),
  86                    const char WXUNUSED(maskBits)[])
  87 {
  88 }
  89
  90 wxCursor::wxCursor(const wxString& cursor_file,
  91                    long flags,
  92                    int hotSpotX, int hotSpotY)
  93 {
  94     wxCursorRefData *refData = new wxCursorRefData;
  95     m_refData = refData;
  96
  97     refData->m_destroyCursor = FALSE;
  98
  99     if (flags == wxBITMAP_TYPE_CUR_RESOURCE)
 100     {
 101 #ifdef __WIN95__
 102         refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), cursor_file, IMAGE_CURSOR, 0, 0, 0);
 103 #else
 104         refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), cursor_file);
 105 #endif
 106     }
 107     else if (flags == wxBITMAP_TYPE_CUR)
 108     {
 109 #ifdef __WIN95__
 110         refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), cursor_file, IMAGE_CURSOR, 0, 0, LR_LOADFROMFILE);
 111 #else
 112 #if wxUSE_RESOURCE_LOADING_IN_MSW
 113         refData->m_hCursor = (WXHCURSOR) ReadCursorFile(WXSTRINGCAST cursor_file, wxGetInstance(), &refData->m_width, &refData->m_height);
 114         refData->m_destroyCursor = TRUE;
 115 #endif
 116 #endif
 117     }
 118     else if (flags == wxBITMAP_TYPE_ICO)
 119     {
 120 #if wxUSE_RESOURCE_LOADING_IN_MSW
 121         refData->m_hCursor = (WXHCURSOR) IconToCursor(WXSTRINGCAST cursor_file, wxGetInstance(), hotSpotX, hotSpotY, &refData->m_width, &refData->m_height);
 122         refData->m_destroyCursor = TRUE;
 123 #endif
 124     }
 125     else if (flags == wxBITMAP_TYPE_BMP)
 126     {
 127 #if wxUSE_RESOURCE_LOADING_IN_MSW
 128         HBITMAP hBitmap = 0;
 129         HPALETTE hPalette = 0;
 130         bool success = wxReadDIB(WXSTRINGCAST cursor_file, &hBitmap, &hPalette) != 0;
 131         if (!success)
 132             return;
 133         if (hPalette)
 134             DeleteObject(hPalette);
 135         POINT pnt;
 136         pnt.x = hotSpotX;
 137         pnt.y = hotSpotY;
 138         refData->m_hCursor = (WXHCURSOR) MakeCursorFromBitmap(wxGetInstance(), hBitmap, &pnt);
 139         refData->m_destroyCursor = TRUE;
 140         DeleteObject(hBitmap);
 141 #endif
 142     }
 143
 144 #if WXWIN_COMPATIBILITY_2
 145     refData->SetOk();
 146 #endif // WXWIN_COMPATIBILITY_2
 147 }
 148
 149 // Cursors by stock number
 150 wxCursor::wxCursor(int cursor_type)
 151 {
 152   wxCursorRefData *refData = new wxCursorRefData;
 153   m_refData = refData;
 154
 155   switch (cursor_type)
 156   {
 157     case wxCURSOR_WAIT:
 158       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_WAIT);
 159       break;
 160     case wxCURSOR_IBEAM:
 161       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_IBEAM);
 162       break;
 163     case wxCURSOR_CROSS:
 164       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_CROSS);
 165       break;
 166     case wxCURSOR_SIZENWSE:
 167       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENWSE);
 168       break;
 169     case wxCURSOR_SIZENESW:
 170       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENESW);
 171       break;
 172     case wxCURSOR_SIZEWE:
 173       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZEWE);
 174       break;
 175     case wxCURSOR_SIZENS:
 176       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENS);
 177       break;
 178     case wxCURSOR_CHAR:
 179     {
 180       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 181       break;
 182     }
 183     case wxCURSOR_HAND:
 184     {
 185       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_HAND"));
 186       break;
 187     }
 188     case wxCURSOR_BULLSEYE:
 189     {
 190       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BULLSEYE"));
 191       break;
 192     }
 193     case wxCURSOR_PENCIL:
 194     {
 195       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PENCIL"));
 196       break;
 197     }
 198     case wxCURSOR_MAGNIFIER:
 199     {
 200       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_MAGNIFIER"));
 201       break;
 202     }
 203     case wxCURSOR_NO_ENTRY:
 204     {
 205       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_NO_ENTRY"));
 206       break;
 207     }
 208     case wxCURSOR_LEFT_BUTTON:
 209     {
 210       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 211       break;
 212     }
 213     case wxCURSOR_RIGHT_BUTTON:
 214     {
 215       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 216       break;
 217     }
 218     case wxCURSOR_MIDDLE_BUTTON:
 219     {
 220       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 221       break;
 222     }
 223     case wxCURSOR_SIZING:
 224     {
 225       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_SIZING"));
 226       break;
 227     }
 228     case wxCURSOR_WATCH:
 229     {
 230       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_WATCH"));
 231       break;
 232     }
 233     case wxCURSOR_SPRAYCAN:
 234     {
 235       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_ROLLER"));
 236       break;
 237     }
 238     case wxCURSOR_PAINT_BRUSH:
 239     {
 240       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PBRUSH"));
 241       break;
 242     }
 243     case wxCURSOR_POINT_LEFT:
 244     {
 245       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PLEFT"));
 246       break;
 247     }
 248     case wxCURSOR_POINT_RIGHT:
 249     {
 250       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PRIGHT"));
 251       break;
 252     }
 253     case wxCURSOR_QUESTION_ARROW:
 254     {
 255       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_QARROW"));
 256       break;
 257     }
 258     case wxCURSOR_BLANK:
 259     {
 260       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BLANK"));
 261       break;
 262     }
 263     default:
 264     case wxCURSOR_ARROW:
 265       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 266       break;
 267   }
 268 }
 269
 270 wxCursor::~wxCursor()
 271 {
 272 }
 273
 274 // ----------------------------------------------------------------------------
 275 // Global cursor setting
 276 // ----------------------------------------------------------------------------
 277
 278 void wxSetCursor(const wxCursor& cursor)
 279 {
 280     extern wxCursor *g_globalCursor;
 281
 282     if ( cursor.Ok() && cursor.GetHCURSOR() )
 283     {
 284         ::SetCursor((HCURSOR) cursor.GetHCURSOR());
 285
 286         if ( g_globalCursor )
 287             (*g_globalCursor) = cursor;
 288     }
 289 }
 290
 291