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 = TRUE;
 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     }
 149     else if (flags == wxBITMAP_TYPE_CUR)
 150     {
 151 #ifdef __WIN95__
 152         refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), cursor_file, IMAGE_CURSOR, 0, 0, LR_LOADFROMFILE);
 153 #else
 154 #if wxUSE_RESOURCE_LOADING_IN_MSW
 155         refData->m_hCursor = (WXHCURSOR) ReadCursorFile(WXSTRINGCAST cursor_file, wxGetInstance(), &refData->m_width, &refData->m_height);
 156 #endif
 157 #endif
 158     }
 159     else if (flags == wxBITMAP_TYPE_ICO)
 160     {
 161 #if wxUSE_RESOURCE_LOADING_IN_MSW
 162         refData->m_hCursor = (WXHCURSOR) IconToCursor(WXSTRINGCAST cursor_file, wxGetInstance(), hotSpotX, hotSpotY, &refData->m_width, &refData->m_height);
 163 #endif
 164     }
 165     else if (flags == wxBITMAP_TYPE_BMP)
 166     {
 167 #if wxUSE_RESOURCE_LOADING_IN_MSW
 168         HBITMAP hBitmap = 0;
 169         HPALETTE hPalette = 0;
 170         bool success = wxReadDIB(WXSTRINGCAST cursor_file, &hBitmap, &hPalette) != 0;
 171         if (!success)
 172             return;
 173         if (hPalette)
 174             DeleteObject(hPalette);
 175         POINT pnt;
 176         pnt.x = hotSpotX;
 177         pnt.y = hotSpotY;
 178         refData->m_hCursor = (WXHCURSOR) MakeCursorFromBitmap(wxGetInstance(), hBitmap, &pnt);
 179         DeleteObject(hBitmap);
 180 #endif
 181     }
 182
 183 #if WXWIN_COMPATIBILITY_2
 184     refData->SetOk();
 185 #endif // WXWIN_COMPATIBILITY_2
 186
 187 #endif
 188 }
 189
 190 // Cursors by stock number
 191 wxCursor::wxCursor(int cursor_type)
 192 {
 193 #ifdef __WXMICROWIN__
 194     m_refData = NULL;
 195 #else
 196   wxCursorRefData *refData = new wxCursorRefData;
 197   m_refData = refData;
 198
 199   switch (cursor_type)
 200   {
 201     case wxCURSOR_ARROWWAIT:
 202 #ifndef __WIN16__
 203       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_APPSTARTING);
 204       break;
 205 #endif
 206     case wxCURSOR_WAIT:
 207       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_WAIT);
 208       break;
 209     case wxCURSOR_IBEAM:
 210       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_IBEAM);
 211       break;
 212     case wxCURSOR_CROSS:
 213       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_CROSS);
 214       break;
 215     case wxCURSOR_SIZENWSE:
 216       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENWSE);
 217       break;
 218     case wxCURSOR_SIZENESW:
 219       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENESW);
 220       break;
 221     case wxCURSOR_SIZEWE:
 222       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZEWE);
 223       break;
 224     case wxCURSOR_SIZENS:
 225       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENS);
 226       break;
 227     case wxCURSOR_CHAR:
 228     {
 229       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 230       break;
 231     }
 232     case wxCURSOR_HAND:
 233     {
 234       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_HAND"));
 235       break;
 236     }
 237     case wxCURSOR_BULLSEYE:
 238     {
 239       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BULLSEYE"));
 240       break;
 241     }
 242     case wxCURSOR_PENCIL:
 243     {
 244       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PENCIL"));
 245       break;
 246     }
 247     case wxCURSOR_MAGNIFIER:
 248     {
 249       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_MAGNIFIER"));
 250       break;
 251     }
 252     case wxCURSOR_NO_ENTRY:
 253     {
 254       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_NO_ENTRY"));
 255       break;
 256     }
 257     case wxCURSOR_LEFT_BUTTON:
 258     {
 259       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 260       break;
 261     }
 262     case wxCURSOR_RIGHT_BUTTON:
 263     {
 264       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 265       break;
 266     }
 267     case wxCURSOR_MIDDLE_BUTTON:
 268     {
 269       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 270       break;
 271     }
 272     case wxCURSOR_SIZING:
 273     {
 274       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_SIZING"));
 275       break;
 276     }
 277     case wxCURSOR_WATCH:
 278     {
 279       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_WATCH"));
 280       break;
 281     }
 282     case wxCURSOR_SPRAYCAN:
 283     {
 284       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_ROLLER"));
 285       break;
 286     }
 287     case wxCURSOR_PAINT_BRUSH:
 288     {
 289       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PBRUSH"));
 290       break;
 291     }
 292     case wxCURSOR_POINT_LEFT:
 293     {
 294       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PLEFT"));
 295       break;
 296     }
 297     case wxCURSOR_POINT_RIGHT:
 298     {
 299       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PRIGHT"));
 300       break;
 301     }
 302     case wxCURSOR_QUESTION_ARROW:
 303     {
 304 //      refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), wxT("wxCURSOR_QARROW"), IMAGE_CURSOR, 16, 16, LR_MONOCHROME);
 305       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_QARROW"));
 306       break;
 307     }
 308     case wxCURSOR_BLANK:
 309     {
 310       refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BLANK"));
 311       break;
 312     }
 313     default:
 314     case wxCURSOR_ARROW:
 315       refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
 316       break;
 317   }
 318
 319   // no need to destroy the stock cursors
 320   // TODO: check this
 321   //m_refData->m_destroyCursor = FALSE;
 322 #endif
 323 }
 324
 325 wxCursor::~wxCursor()
 326 {
 327 }
 328
 329 // ----------------------------------------------------------------------------
 330 // Global cursor setting
 331 // ----------------------------------------------------------------------------
 332
 333 const wxCursor *wxGetGlobalCursor()
 334 {
 335     return gs_globalCursor;
 336 }
 337
 338 void wxSetCursor(const wxCursor& cursor)
 339 {
 340     if ( cursor.Ok() )
 341     {
 342 #ifndef __WXMICROWIN__
 343         ::SetCursor(GetHcursorOf(cursor));
 344 #endif
 345
 346         if ( gs_globalCursor )
 347             *gs_globalCursor = cursor;
 348     }
 349 }
 350
 351