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/module.h"
  41 #include "wx/msw/private.h"
  42 #ifndef __WXMICROWIN__
  43 #include "wx/msw/dib.h"
  44 #endif
  45
  46 #if wxUSE_RESOURCE_LOADING_IN_MSW
  47     #include "wx/msw/curico.h"
  48     #include "wx/msw/curicop.h"
  49 #endif
  50
  51 // ----------------------------------------------------------------------------
  52 // wxWin macros
  53 // ----------------------------------------------------------------------------
  54
  55 IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxCursorBase)
  56
  57 // ----------------------------------------------------------------------------
  58 // globals
  59 // ----------------------------------------------------------------------------
  60
  61 // Current cursor, in order to hang on to cursor handle when setting the cursor
  62 // globally
  63 static wxCursor *gs_globalCursor = NULL;
  64
  65 // ----------------------------------------------------------------------------
  66 // private classes
  67 // ----------------------------------------------------------------------------
  68
  69 class wxCursorModule : public wxModule
  70 {
  71 public:
  72     virtual bool OnInit()
  73     {
  74         gs_globalCursor = new wxCursor;
  75
  76         return TRUE;
  77     }
  78
  79     virtual void OnExit()
  80     {
  81         delete gs_globalCursor;
  82         gs_globalCursor = (wxCursor *)NULL;
  83     }
  84 };
  85
  86 // ============================================================================
  87 // implementation
  88 // ============================================================================
  89
  90 // ----------------------------------------------------------------------------
  91 // wxCursorRefData
  92 // ----------------------------------------------------------------------------
  93
  94 wxCursorRefData::wxCursorRefData()
  95 {
  96   m_width = 32;
  97   m_height = 32;
  98
  99   m_destroyCursor = FALSE;
 100 }
 101
 102 void wxCursorRefData::Free()
 103 {
 104     if ( m_hCursor )
 105     {
 106 #ifndef __WXMICROWIN__
 107         if ( m_destroyCursor )
 108             ::DestroyCursor((HCURSOR)m_hCursor);
 109 #endif
 110
 111         m_hCursor = 0;
 112     }
 113 }
 114
 115 // ----------------------------------------------------------------------------
 116 // Cursors
 117 // ----------------------------------------------------------------------------
 118
 119 wxCursor::wxCursor()
 120 {
 121 }
 122
 123 wxCursor::wxCursor(const char WXUNUSED(bits)[],
 124                    int WXUNUSED(width),
 125                    int WXUNUSED(height),
 126                    int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY),
 127                    const char WXUNUSED(maskBits)[])
 128 {
 129 }
 130
 131 wxCursor::wxCursor(const wxString& cursor_file,
 132                    long flags,
 133                    int hotSpotX, int hotSpotY)
 134 {
 135 #ifdef __WXMICROWIN__
 136     m_refData = NULL;
 137 #else
 138     wxCursorRefData *refData = new wxCursorRefData;
 139     m_refData = refData;
 140
 141     if (flags == wxBITMAP_TYPE_CUR_RESOURCE)
 142     {
 143 #ifdef __WIN95__
 144         refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), cursor_file, IMAGE_CURSOR, 0, 0, 0);
 145 #else
 146         refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), cursor_file);
 147 #endif
 148         refData->m_destroyCursor = FALSE;
 149     }
 150     else if (flags == wxBITMAP_TYPE_CUR)
 151     {
 152 #ifdef __WIN95__
 153         refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), cursor_file, IMAGE_CURSOR, 0, 0, LR_LOADFROMFILE);
 154 #else
 155 #if wxUSE_RESOURCE_LOADING_IN_MSW
 156         refData->m_hCursor = (WXHCURSOR) ReadCursorFile(WXSTRINGCAST cursor_file, wxGetInstance(), &refData->m_width, &refData->m_height);
 157 #endif
 158 #endif
 159     }
 160     else if (flags == wxBITMAP_TYPE_ICO)
 161     {
 162 #if wxUSE_RESOURCE_LOADING_IN_MSW
 163         refData->m_hCursor = (WXHCURSOR) IconToCursor(WXSTRINGCAST cursor_file, wxGetInstance(), hotSpotX, hotSpotY, &refData->m_width, &refData->m_height);
 164 #endif
 165     }
 166     else if (flags == wxBITMAP_TYPE_BMP)
 167     {
 168 #if wxUSE_RESOURCE_LOADING_IN_MSW
 169         HBITMAP hBitmap = 0;
 170         HPALETTE hPalette = 0;
 171         bool success = wxReadDIB(WXSTRINGCAST cursor_file, &hBitmap, &hPalette) != 0;
 172         if (!success)
 173             return;
 174         if (hPalette)
 175             DeleteObject(hPalette);
 176         POINT pnt;
 177         pnt.x = hotSpotX;
 178         pnt.y = hotSpotY;
 179         refData->m_hCursor = (WXHCURSOR) MakeCursorFromBitmap(wxGetInstance(), hBitmap, &pnt);
 180         DeleteObject(hBitmap);
 181 #endif
 182     }
 183
 184 #if WXWIN_COMPATIBILITY_2
 185     refData->SetOk();
 186 #endif // WXWIN_COMPATIBILITY_2
 187
 188 #endif
 189 }
 190
 191 // Cursors by stock number
 192 wxCursor::wxCursor(int cursor_type)
 193 {
 194 #ifdef __WXMICROWIN__
 195     m_refData = NULL;
 196 #else
 197   wxCursorRefData *refData = new wxCursorRefData;
 198   m_refData = refData;
 199
 200   switch (cursor_type)
 201   {
 202     case wxCURSOR_ARROWWAIT:
 203 #ifndef __WIN16__
 204       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_APPSTARTING);
 205       break;
 206 #endif
 207     case wxCURSOR_WAIT:
 208       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_WAIT);
 209       break;
 210     case wxCURSOR_IBEAM:
 211       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_IBEAM);
 212       break;
 213     case wxCURSOR_CROSS:
 214       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_CROSS);
 215       break;
 216     case wxCURSOR_SIZENWSE:
 217       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENWSE);
 218       break;
 219     case wxCURSOR_SIZENESW:
 220       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENESW);
 221       break;
 222     case wxCURSOR_SIZEWE:
 223       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZEWE);
 224       break;
 225     case wxCURSOR_SIZENS:
 226       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENS);
 227       break;
 228     case wxCURSOR_CHAR:
 229     {
 230       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 231       break;
 232     }
 233     case wxCURSOR_HAND:
 234     {
 235       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_HAND"));
 236       break;
 237     }
 238     case wxCURSOR_BULLSEYE:
 239     {
 240       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BULLSEYE"));
 241       break;
 242     }
 243     case wxCURSOR_PENCIL:
 244     {
 245       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PENCIL"));
 246       break;
 247     }
 248     case wxCURSOR_MAGNIFIER:
 249     {
 250       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_MAGNIFIER"));
 251       break;
 252     }
 253     case wxCURSOR_NO_ENTRY:
 254     {
 255       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_NO_ENTRY"));
 256       break;
 257     }
 258     case wxCURSOR_LEFT_BUTTON:
 259     {
 260       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 261       break;
 262     }
 263     case wxCURSOR_RIGHT_BUTTON:
 264     {
 265       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 266       break;
 267     }
 268     case wxCURSOR_MIDDLE_BUTTON:
 269     {
 270       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 271       break;
 272     }
 273     case wxCURSOR_SIZING:
 274     {
 275       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_SIZING"));
 276       break;
 277     }
 278     case wxCURSOR_WATCH:
 279     {
 280       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_WATCH"));
 281       break;
 282     }
 283     case wxCURSOR_SPRAYCAN:
 284     {
 285       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_ROLLER"));
 286       break;
 287     }
 288     case wxCURSOR_PAINT_BRUSH:
 289     {
 290       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PBRUSH"));
 291       break;
 292     }
 293     case wxCURSOR_POINT_LEFT:
 294     {
 295       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PLEFT"));
 296       break;
 297     }
 298     case wxCURSOR_POINT_RIGHT:
 299     {
 300       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PRIGHT"));
 301       break;
 302     }
 303     case wxCURSOR_QUESTION_ARROW:
 304     {
 305 //      refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), wxT("wxCURSOR_QARROW"), IMAGE_CURSOR, 16, 16, LR_MONOCHROME);
 306       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_QARROW"));
 307       break;
 308     }
 309     case wxCURSOR_BLANK:
 310     {
 311       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BLANK"));
 312       break;
 313     }
 314     default:
 315     case wxCURSOR_ARROW:
 316       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 317       break;
 318   }
 319 #endif
 320 }
 321
 322 wxCursor::~wxCursor()
 323 {
 324 }
 325
 326 // ----------------------------------------------------------------------------
 327 // Global cursor setting
 328 // ----------------------------------------------------------------------------
 329
 330 const wxCursor *wxGetGlobalCursor()
 331 {
 332     return gs_globalCursor;
 333 }
 334
 335 void wxSetCursor(const wxCursor& cursor)
 336 {
 337     if ( cursor.Ok() )
 338     {
 339 #ifndef __WXMICROWIN__
 340         ::SetCursor(GetHcursorOf(cursor));
 341 #endif
 342
 343         if ( gs_globalCursor )
 344             *gs_globalCursor = cursor;
 345     }
 346 }
 347
 348