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 )
  73         gs_cursorsHash = new wxCursorsHash;
  74
  75     if ( gs_cursorsHash->find(cursorId) != gs_cursorsHash->end() )
  76     {
  77         wxLogTrace(_T("mglcursor"), _T("cursor id %i fetched from cache"), cursorId);
  78         *this = (*gs_cursorsHash)[cursorId];
  79         return;
  80     }
  81
  82     const char *cursorname = NULL;
  83     m_refData = new wxCursorRefData();
  84
  85     switch (cursorId)
  86     {
  87         case wxCURSOR_ARROW:           cursorname = "arrow.cur"; break;
  88         case wxCURSOR_RIGHT_ARROW:     cursorname = "rightarr.cur"; break;
  89         case wxCURSOR_BULLSEYE:        cursorname = "bullseye.cur"; break;
  90         case wxCURSOR_CHAR:            cursorname = "char.cur"; break;
  91         case wxCURSOR_CROSS:           cursorname = "cross.cur"; break;
  92         case wxCURSOR_HAND:            cursorname = "hand.cur"; break;
  93         case wxCURSOR_IBEAM:           cursorname = "ibeam.cur"; break;
  94         case wxCURSOR_LEFT_BUTTON:     cursorname = "leftbtn.cur"; break;
  95         case wxCURSOR_MAGNIFIER:       cursorname = "magnif1.cur"; break;
  96         case wxCURSOR_MIDDLE_BUTTON:   cursorname = "midbtn.cur"; break;
  97         case wxCURSOR_NO_ENTRY:        cursorname = "noentry.cur"; break;
  98         case wxCURSOR_PAINT_BRUSH:     cursorname = "pbrush.cur"; break;
  99         case wxCURSOR_PENCIL:          cursorname = "pencil.cur"; break;
 100         case wxCURSOR_POINT_LEFT:      cursorname = "pntleft.cur"; break;
 101         case wxCURSOR_POINT_RIGHT:     cursorname = "pntright.cur"; break;
 102         case wxCURSOR_QUESTION_ARROW:  cursorname = "query.cur"; break;
 103         case wxCURSOR_RIGHT_BUTTON:    cursorname = "rightbtn.cur"; break;
 104         case wxCURSOR_SIZENESW:        cursorname = "sizenesw.cur"; break;
 105         case wxCURSOR_SIZENS:          cursorname = "sizens.cur"; break;
 106         case wxCURSOR_SIZENWSE:        cursorname = "sizenwse.cur"; break;
 107         case wxCURSOR_SIZEWE:          cursorname = "sizewe.cur"; break;
 108         case wxCURSOR_SIZING:          cursorname = "size.cur"; break;
 109         case wxCURSOR_SPRAYCAN:        cursorname = "spraycan.cur"; break;
 110         case wxCURSOR_WAIT:            cursorname = "wait.cur"; break;
 111         case wxCURSOR_WATCH:           cursorname = "clock.cur"; break;
 112         case wxCURSOR_BLANK:           cursorname = "blank.cur"; break;
 113
 114         case wxCURSOR_NONE:
 115             *this = wxNullCursor;
 116             return;
 117             break;
 118
 119         default:
 120             wxFAIL_MSG(wxT("unsupported cursor type"));
 121             break;
 122     }
 123
 124     M_CURSORDATA->m_cursor = new MGLCursor(cursorname);
 125
 126     // if we cannot load arrow cursor, use MGL's default arrow cursor:
 127     if ( !M_CURSORDATA->m_cursor->valid() && cursorId == wxCURSOR_ARROW )
 128     {
 129         delete M_CURSORDATA->m_cursor;
 130         M_CURSORDATA->m_cursor = new MGLCursor(MGL_DEF_CURSOR);
 131     }
 132
 133     if ( !M_CURSORDATA->m_cursor->valid() )
 134     {
 135         wxLogError(_("Couldn't create cursor."));
 136         UnRef();
 137     }
 138     else
 139     {
 140         (*gs_cursorsHash)[cursorId] = *this;
 141         wxLogTrace(_T("mglcursor"), _T("cursor id %i added to cache (%s)"),
 142                    cursorId, cursorname);
 143     }
 144 }
 145
 146 wxCursor::wxCursor(const char WXUNUSED(bits)[],
 147                    int WXUNUSED(width),
 148                    int WXUNUSED(height),
 149                    int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY),
 150                    const char WXUNUSED(maskBits)[],
 151                    wxColour * WXUNUSED(fg), wxColour * WXUNUSED(bg) )
 152 {
 153     //FIXME_MGL
 154 }
 155
 156 wxCursor::wxCursor(const wxString& cursor_file,
 157                    long flags,
 158                    int hotSpotX, int hotSpotY)
 159 {
 160     if ( flags == wxBITMAP_TYPE_CUR || flags == wxBITMAP_TYPE_CUR_RESOURCE )
 161     {
 162         m_refData = new wxCursorRefData();
 163         M_CURSORDATA->m_cursor = new MGLCursor(cursor_file.mb_str());
 164         if ( !M_CURSORDATA->m_cursor->valid() )
 165         {
 166             wxLogError(_("Couldn't create cursor."));
 167             UnRef();
 168         }
 169     }
 170     else
 171     {
 172         wxLogError(wxT("Cannot load cursor resource of this type."));
 173     }
 174 }
 175
 176 wxCursor::wxCursor(const wxCursor &cursor)
 177 {
 178     Ref(cursor);
 179 }
 180
 181 wxCursor::~wxCursor()
 182 {
 183     // wxObject unrefs data
 184 }
 185
 186 wxCursor& wxCursor::operator = (const wxCursor& cursor)
 187 {
 188     if ( *this == cursor )
 189         return (*this);
 190     Ref(cursor);
 191     return *this;
 192 }
 193
 194 bool wxCursor::operator == (const wxCursor& cursor) const
 195 {
 196     return (m_refData == cursor.m_refData);
 197 }
 198
 199 bool wxCursor::operator != (const wxCursor& cursor) const
 200 {
 201     return (m_refData != cursor.m_refData);
 202 }
 203
 204 bool wxCursor::Ok() const
 205 {
 206     return (m_refData != NULL);
 207 }
 208
 209 MGLCursor *wxCursor::GetMGLCursor() const
 210 {
 211     return M_CURSORDATA->m_cursor;
 212 }
 213
 214
 215
 216 // ----------------------------------------------------------------------------
 217 // Global cursor setting
 218 // ----------------------------------------------------------------------------
 219
 220 static wxCursor  gs_globalCursor = wxNullCursor;
 221
 222 void wxSetCursor(const wxCursor& cursor)
 223 {
 224     if ( cursor.Ok() )
 225     {
 226         if ( g_winMng )
 227             MGL_wmSetGlobalCursor(g_winMng, *cursor.GetMGLCursor());
 228         gs_globalCursor = cursor;
 229     }
 230     else
 231     {
 232         if ( g_winMng )
 233             MGL_wmSetGlobalCursor(g_winMng, NULL);
 234         gs_globalCursor = wxNullCursor;
 235     }
 236 }
 237
 238
 239
 240 //-----------------------------------------------------------------------------
 241 // busy cursor routines
 242 //-----------------------------------------------------------------------------
 243
 244 static wxCursor  gs_savedCursor = wxNullCursor;
 245 static int       gs_busyCount = 0;
 246
 247 const wxCursor &wxBusyCursor::GetStoredCursor()
 248 {
 249     return gs_savedCursor;
 250 }
 251
 252 const wxCursor wxBusyCursor::GetBusyCursor()
 253 {
 254     return gs_globalCursor;
 255 }
 256
 257 void wxEndBusyCursor()
 258 {
 259     if ( --gs_busyCount > 0 ) return;
 260
 261     wxSetCursor(gs_savedCursor);
 262     gs_savedCursor = wxNullCursor;
 263 }
 264
 265 void wxBeginBusyCursor(wxCursor *cursor)
 266 {
 267     if ( gs_busyCount++ > 0 ) return;
 268
 269     wxASSERT_MSG( !gs_savedCursor.Ok(),
 270                   wxT("forgot to call wxEndBusyCursor, will leak memory") );
 271
 272     gs_savedCursor = gs_globalCursor;
 273     if ( cursor->Ok() )
 274         wxSetCursor(*cursor);
 275     else
 276         wxSetCursor(wxCursor(wxCURSOR_WAIT));
 277 }
 278
 279 bool wxIsBusy()
 280 {
 281     return (gs_busyCount > 0);
 282 }
 283
 284
 285
 286 //-----------------------------------------------------------------------------
 287 // module - clean up code
 288 //-----------------------------------------------------------------------------
 289
 290 class wxCursorModule : public wxModule
 291 {
 292 public:
 293     virtual bool OnInit() { return TRUE; }
 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)