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