src/mgl/cursor.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        cursor.cpp
   3 // Purpose:
   4 // Author:      Vaclav Slavik
   5 // Id:          $Id$
   6 // Copyright:   (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "cursor.h"
  13 #endif
  14
  15 // For compilers that support precompilation, includes "wx.h".
  16 #include "wx/wxprec.h"
  17
  18 #ifdef __BORLANDC__
  19     #pragma hdrstop
  20 #endif
  21
  22 #include "wx/cursor.h"
  23 #include "wx/module.h"
  24 #include "wx/utils.h"
  25 #include "wx/log.h"
  26 #include "wx/intl.h"
  27 #include "wx/hashmap.h"
  28
  29 #include "wx/mgl/private.h"
  30
  31
  32 //-----------------------------------------------------------------------------
  33 // wxCursor
  34 //-----------------------------------------------------------------------------
  35
  36 class wxCursorRefData: public wxObjectRefData
  37 {
  38   public:
  39
  40     wxCursorRefData();
  41     ~wxCursorRefData();
  42
  43     MGLCursor *m_cursor;
  44 };
  45
  46 wxCursorRefData::wxCursorRefData()
  47 {
  48     m_cursor = (MGLCursor*) NULL;
  49 }
  50
  51 wxCursorRefData::~wxCursorRefData()
  52 {
  53     delete m_cursor;
  54 }
  55
  56 #define M_CURSORDATA ((wxCursorRefData *)m_refData)
  57
  58 //-----------------------------------------------------------------------------
  59
  60 WX_DECLARE_HASH_MAP(int, wxCursor, wxIntegerHash, wxIntegerEqual, wxCursorsHash)
  61
  62 static wxCursorsHash *gs_cursorsHash = NULL;
  63
  64 IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
  65
  66 wxCursor::wxCursor()
  67 {
  68 }
  69
  70 wxCursor::wxCursor(int cursorId)
  71 {
  72     if ( gs_cursorsHash->find(cursorId) != gs_cursorsHash->end() )
  73     {
  74         wxLogTrace(_T("mglcursor"), _T("cursor id %i fetched from cache"), cursorId);
  75         *this = (*gs_cursorsHash)[cursorId];
  76         return;
  77     }
  78
  79     const char *cursorname = NULL;
  80     m_refData = new wxCursorRefData();
  81
  82     switch (cursorId)
  83     {
  84         case wxCURSOR_ARROW:           cursorname = "arrow.cur"; break;
  85         case wxCURSOR_BULLSEYE:        cursorname = "bullseye.cur"; break;
  86         case wxCURSOR_CHAR:            cursorname = "char.cur"; break;
  87         case wxCURSOR_CROSS:           cursorname = "cross.cur"; break;
  88         case wxCURSOR_HAND:            cursorname = "hand.cur"; break;
  89         case wxCURSOR_IBEAM:           cursorname = "ibeam.cur"; break;
  90         case wxCURSOR_LEFT_BUTTON:     cursorname = "leftbtn.cur"; break;
  91         case wxCURSOR_MAGNIFIER:       cursorname = "magnif1.cur"; break;
  92         case wxCURSOR_MIDDLE_BUTTON:   cursorname = "midbtn.cur"; break;
  93         case wxCURSOR_NO_ENTRY:        cursorname = "noentry.cur"; break;
  94         case wxCURSOR_PAINT_BRUSH:     cursorname = "pbrush.cur"; break;
  95         case wxCURSOR_PENCIL:          cursorname = "pencil.cur"; break;
  96         case wxCURSOR_POINT_LEFT:      cursorname = "pntleft.cur"; break;
  97         case wxCURSOR_POINT_RIGHT:     cursorname = "pntright.cur"; break;
  98         case wxCURSOR_QUESTION_ARROW:  cursorname = "query.cur"; break;
  99         case wxCURSOR_RIGHT_BUTTON:    cursorname = "rightbtn.cur"; break;
 100         case wxCURSOR_SIZENESW:        cursorname = "sizenesw.cur"; break;
 101         case wxCURSOR_SIZENS:          cursorname = "sizens.cur"; break;
 102         case wxCURSOR_SIZENWSE:        cursorname = "sizenwse.cur"; break;
 103         case wxCURSOR_SIZEWE:          cursorname = "sizewe.cur"; break;
 104         case wxCURSOR_SIZING:          cursorname = "size.cur"; break;
 105         case wxCURSOR_SPRAYCAN:        cursorname = "spraycan.cur"; break;
 106         case wxCURSOR_WAIT:            cursorname = "wait.cur"; break;
 107         case wxCURSOR_WATCH:           cursorname = "clock.cur"; break;
 108         case wxCURSOR_BLANK:           cursorname = "blank.cur"; break;
 109
 110         case wxCURSOR_NONE:
 111             *this = wxNullCursor;
 112             return;
 113             break;
 114
 115         default:
 116             wxFAIL_MSG(wxT("unsupported cursor type"));
 117             break;
 118     }
 119
 120     M_CURSORDATA->m_cursor = new MGLCursor(cursorname);
 121
 122     // if we cannot load arrow cursor, use MGL's default arrow cursor:
 123     if ( !M_CURSORDATA->m_cursor->valid() && cursorId == wxCURSOR_ARROW )
 124     {
 125         delete M_CURSORDATA->m_cursor;
 126         M_CURSORDATA->m_cursor = new MGLCursor(MGL_DEF_CURSOR);
 127     }
 128
 129     if ( !M_CURSORDATA->m_cursor->valid() )
 130     {
 131         wxLogError(_("Couldn't create cursor."));
 132         UnRef();
 133     }
 134     else
 135     {
 136         (*gs_cursorsHash)[cursorId] = *this;
 137         wxLogTrace(_T("mglcursor"), _T("cursor id %i added to cache (%s)"),
 138                    cursorId, cursorname);
 139     }
 140 }
 141
 142 wxCursor::wxCursor(const char WXUNUSED(bits)[],
 143                    int WXUNUSED(width),
 144                    int WXUNUSED(height),
 145                    int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY),
 146                    const char WXUNUSED(maskBits)[],
 147                    wxColour * WXUNUSED(fg), wxColour * WXUNUSED(bg) )
 148 {
 149     //FIXME_MGL
 150 }
 151
 152 wxCursor::wxCursor(const wxString& cursor_file,
 153                    long flags,
 154                    int hotSpotX, int hotSpotY)
 155 {
 156     if ( flags == wxBITMAP_TYPE_CUR || flags == wxBITMAP_TYPE_CUR_RESOURCE )
 157     {
 158         m_refData = new wxCursorRefData();
 159         M_CURSORDATA->m_cursor = new MGLCursor(cursor_file.mb_str());
 160         if ( !M_CURSORDATA->m_cursor->valid() )
 161         {
 162             wxLogError(_("Couldn't create cursor."));
 163             UnRef();
 164         }
 165     }
 166     else
 167     {
 168         wxLogError(wxT("Cannot load cursor resource of this type."));
 169     }
 170 }
 171
 172 wxCursor::wxCursor(const wxCursor &cursor)
 173 {
 174     Ref(cursor);
 175 }
 176
 177 wxCursor::~wxCursor()
 178 {
 179     // wxObject unrefs data
 180 }
 181
 182 wxCursor& wxCursor::operator = (const wxCursor& cursor)
 183 {
 184     if ( *this == cursor )
 185         return (*this);
 186     Ref(cursor);
 187     return *this;
 188 }
 189
 190 bool wxCursor::operator == (const wxCursor& cursor) const
 191 {
 192     return (m_refData == cursor.m_refData);
 193 }
 194
 195 bool wxCursor::operator != (const wxCursor& cursor) const
 196 {
 197     return (m_refData != cursor.m_refData);
 198 }
 199
 200 bool wxCursor::Ok() const
 201 {
 202     return (m_refData != NULL);
 203 }
 204
 205 MGLCursor *wxCursor::GetMGLCursor() const
 206 {
 207     return M_CURSORDATA->m_cursor;
 208 }
 209
 210
 211
 212 // ----------------------------------------------------------------------------
 213 // Global cursor setting
 214 // ----------------------------------------------------------------------------
 215
 216 static wxCursor  gs_globalCursor = wxNullCursor;
 217
 218 void wxSetCursor(const wxCursor& cursor)
 219 {
 220     if ( cursor.Ok() )
 221     {
 222         if ( g_winMng )
 223             MGL_wmSetGlobalCursor(g_winMng, *cursor.GetMGLCursor());
 224         gs_globalCursor = cursor;
 225     }
 226     else
 227     {
 228         if ( g_winMng )
 229             MGL_wmSetGlobalCursor(g_winMng, NULL);
 230         gs_globalCursor = wxNullCursor;
 231     }
 232 }
 233
 234
 235
 236 //-----------------------------------------------------------------------------
 237 // busy cursor routines
 238 //-----------------------------------------------------------------------------
 239
 240 static wxCursor  gs_savedCursor = wxNullCursor;
 241 static int       gs_busyCount = 0;
 242
 243 const wxCursor &wxBusyCursor::GetStoredCursor()
 244 {
 245     return gs_savedCursor;
 246 }
 247
 248 const wxCursor wxBusyCursor::GetBusyCursor()
 249 {
 250     return gs_globalCursor;
 251 }
 252
 253 void wxEndBusyCursor()
 254 {
 255     if ( --gs_busyCount > 0 ) return;
 256
 257     wxSetCursor(gs_savedCursor);
 258     gs_savedCursor = wxNullCursor;
 259 }
 260
 261 void wxBeginBusyCursor(wxCursor *cursor)
 262 {
 263     if ( gs_busyCount++ > 0 ) return;
 264
 265     wxASSERT_MSG( !gs_savedCursor.Ok(),
 266                   wxT("forgot to call wxEndBusyCursor, will leak memory") );
 267
 268     gs_savedCursor = gs_globalCursor;
 269     if ( cursor->Ok() )
 270         wxSetCursor(*cursor);
 271     else
 272         wxSetCursor(wxCursor(wxCURSOR_WAIT));
 273 }
 274
 275 bool wxIsBusy()
 276 {
 277     return (gs_busyCount > 0);
 278 }
 279
 280
 281
 282 //-----------------------------------------------------------------------------
 283 // module - clean up code
 284 //-----------------------------------------------------------------------------
 285
 286 class wxCursorModule : public wxModule
 287 {
 288 public:
 289     virtual bool OnInit()
 290     {
 291         gs_cursorsHash = new wxCursorsHash;
 292         return TRUE;
 293     }
 294
 295     virtual void OnExit()
 296     {
 297         wxDELETE(gs_cursorsHash);
 298     }
 299
 300 private:
 301     DECLARE_DYNAMIC_CLASS(wxCursorModule)
 302 };
 303
 304 IMPLEMENT_DYNAMIC_CLASS(wxCursorModule, wxModule)