src/mgl/cursor.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mgl/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
  19 #ifndef WX_PRECOMP
  20     #include "wx/intl.h"
  21     #include "wx/log.h"
  22     #include "wx/utils.h"
  23     #include "wx/hashmap.h"
  24     #include "wx/module.h"
  25 #endif
  26
  27 #include "wx/mgl/private.h"
  28
  29
  30 //-----------------------------------------------------------------------------
  31 // wxCursor
  32 //-----------------------------------------------------------------------------
  33
  34 class wxCursorRefData: public wxObjectRefData
  35 {
  36   public:
  37
  38     wxCursorRefData();
  39     virtual ~wxCursorRefData();
  40
  41     MGLCursor *m_cursor;
  42 };
  43
  44 wxCursorRefData::wxCursorRefData()
  45 {
  46     m_cursor = NULL;
  47 }
  48
  49 wxCursorRefData::~wxCursorRefData()
  50 {
  51     delete m_cursor;
  52 }
  53
  54 #define M_CURSORDATA ((wxCursorRefData *)m_refData)
  55
  56 //-----------------------------------------------------------------------------
  57
  58 WX_DECLARE_HASH_MAP(int, wxCursor, wxIntegerHash, wxIntegerEqual, wxCursorsHash);
  59
  60 static wxCursorsHash *gs_cursorsHash = NULL;
  61
  62 IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
  63
  64 wxCursor::wxCursor()
  65 {
  66 }
  67
  68 void wxCursor::InitFromStock(wxStockCursor cursorId)
  69 {
  70     if ( !gs_cursorsHash )
  71         gs_cursorsHash = new wxCursorsHash;
  72
  73     if ( gs_cursorsHash->find(cursorId) != gs_cursorsHash->end() )
  74     {
  75         wxLogTrace(wxT("mglcursor"), wxT("cursor id %i fetched from cache"), cursorId);
  76         *this = (*gs_cursorsHash)[cursorId];
  77         return;
  78     }
  79
  80     const char *cursorname = NULL;
  81     m_refData = new wxCursorRefData();
  82
  83     switch (cursorId)
  84     {
  85         case wxCURSOR_ARROW:           cursorname = "arrow.cur"; break;
  86         case wxCURSOR_RIGHT_ARROW:     cursorname = "rightarr.cur"; break;
  87         case wxCURSOR_BULLSEYE:        cursorname = "bullseye.cur"; break;
  88         case wxCURSOR_CHAR:            cursorname = "char.cur"; break;
  89         case wxCURSOR_CROSS:           cursorname = "cross.cur"; break;
  90         case wxCURSOR_HAND:            cursorname = "hand.cur"; break;
  91         case wxCURSOR_IBEAM:           cursorname = "ibeam.cur"; break;
  92         case wxCURSOR_LEFT_BUTTON:     cursorname = "leftbtn.cur"; break;
  93         case wxCURSOR_MAGNIFIER:       cursorname = "magnif1.cur"; break;
  94         case wxCURSOR_MIDDLE_BUTTON:   cursorname = "midbtn.cur"; break;
  95         case wxCURSOR_NO_ENTRY:        cursorname = "noentry.cur"; break;
  96         case wxCURSOR_PAINT_BRUSH:     cursorname = "pbrush.cur"; break;
  97         case wxCURSOR_PENCIL:          cursorname = "pencil.cur"; break;
  98         case wxCURSOR_POINT_LEFT:      cursorname = "pntleft.cur"; break;
  99         case wxCURSOR_POINT_RIGHT:     cursorname = "pntright.cur"; break;
 100         case wxCURSOR_QUESTION_ARROW:  cursorname = "query.cur"; break;
 101         case wxCURSOR_RIGHT_BUTTON:    cursorname = "rightbtn.cur"; break;
 102         case wxCURSOR_SIZENESW:        cursorname = "sizenesw.cur"; break;
 103         case wxCURSOR_SIZENS:          cursorname = "sizens.cur"; break;
 104         case wxCURSOR_SIZENWSE:        cursorname = "sizenwse.cur"; break;
 105         case wxCURSOR_SIZEWE:          cursorname = "sizewe.cur"; break;
 106         case wxCURSOR_SIZING:          cursorname = "size.cur"; break;
 107         case wxCURSOR_SPRAYCAN:        cursorname = "spraycan.cur"; break;
 108         case wxCURSOR_WAIT:            cursorname = "wait.cur"; break;
 109         case wxCURSOR_WATCH:           cursorname = "clock.cur"; break;
 110         case wxCURSOR_BLANK:           cursorname = "blank.cur"; break;
 111
 112         case wxCURSOR_NONE:
 113             *this = wxNullCursor;
 114             return;
 115
 116         default:
 117             wxFAIL_MSG(wxT("unsupported cursor type"));
 118             break;
 119     }
 120
 121     M_CURSORDATA->m_cursor = new MGLCursor(cursorname);
 122
 123     // if we cannot load arrow cursor, use MGL's default arrow cursor:
 124     if ( !M_CURSORDATA->m_cursor->valid() && cursorId == wxCURSOR_ARROW )
 125     {
 126         delete M_CURSORDATA->m_cursor;
 127         M_CURSORDATA->m_cursor = new MGLCursor(MGL_DEF_CURSOR);
 128     }
 129
 130     if ( !M_CURSORDATA->m_cursor->valid() )
 131     {
 132         wxLogError(_("Couldn't create cursor."));
 133         UnRef();
 134     }
 135     else
 136     {
 137         (*gs_cursorsHash)[cursorId] = *this;
 138         wxLogTrace(wxT("mglcursor"), wxT("cursor id %i added to cache (%s)"),
 139                    cursorId, cursorname);
 140     }
 141 }
 142
 143 wxCursor::wxCursor(const wxString& cursor_file,
 144                    wxBitmapType type,
 145                    int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY))
 146 {
 147     if ( type == wxBITMAP_TYPE_CUR || type == wxBITMAP_TYPE_CUR_RESOURCE )
 148     {
 149         m_refData = new wxCursorRefData();
 150         M_CURSORDATA->m_cursor = new MGLCursor(cursor_file.mb_str());
 151         if ( !M_CURSORDATA->m_cursor->valid() )
 152         {
 153             wxLogError(_("Couldn't create cursor."));
 154             UnRef();
 155         }
 156     }
 157     else
 158     {
 159         wxLogError(wxT("Cannot load cursor resource of this type."));
 160     }
 161 }
 162
 163 wxCursor::~wxCursor()
 164 {
 165     // wxObject unrefs data
 166 }
 167
 168 MGLCursor *wxCursor::GetMGLCursor() const
 169 {
 170     return M_CURSORDATA->m_cursor;
 171 }
 172
 173
 174
 175 // ----------------------------------------------------------------------------
 176 // Global cursor setting
 177 // ----------------------------------------------------------------------------
 178
 179 static wxCursor  gs_globalCursor = wxNullCursor;
 180
 181 void wxSetCursor(const wxCursor& cursor)
 182 {
 183     if ( cursor.IsOk() )
 184     {
 185         if ( g_winMng )
 186             MGL_wmSetGlobalCursor(g_winMng, *cursor.GetMGLCursor());
 187         gs_globalCursor = cursor;
 188     }
 189     else
 190     {
 191         if ( g_winMng )
 192             MGL_wmSetGlobalCursor(g_winMng, NULL);
 193         gs_globalCursor = wxNullCursor;
 194     }
 195 }
 196
 197
 198
 199 //-----------------------------------------------------------------------------
 200 // busy cursor routines
 201 //-----------------------------------------------------------------------------
 202
 203 static wxCursor  gs_savedCursor = wxNullCursor;
 204 static int       gs_busyCount = 0;
 205
 206 const wxCursor &wxBusyCursor::GetStoredCursor()
 207 {
 208     return gs_savedCursor;
 209 }
 210
 211 const wxCursor wxBusyCursor::GetBusyCursor()
 212 {
 213     return gs_globalCursor;
 214 }
 215
 216 void wxEndBusyCursor()
 217 {
 218     if ( --gs_busyCount > 0 ) return;
 219
 220     wxSetCursor(gs_savedCursor);
 221     gs_savedCursor = wxNullCursor;
 222 }
 223
 224 void wxBeginBusyCursor(const wxCursor *cursor)
 225 {
 226     if ( gs_busyCount++ > 0 ) return;
 227
 228     wxASSERT_MSG( !gs_savedCursor.IsOk(),
 229                   wxT("forgot to call wxEndBusyCursor, will leak memory") );
 230
 231     gs_savedCursor = gs_globalCursor;
 232     if ( cursor->IsOk() )
 233         wxSetCursor(*cursor);
 234     else
 235         wxSetCursor(wxCursor(wxCURSOR_WAIT));
 236 }
 237
 238 bool wxIsBusy()
 239 {
 240     return (gs_busyCount > 0);
 241 }
 242
 243
 244
 245 //-----------------------------------------------------------------------------
 246 // module - clean up code
 247 //-----------------------------------------------------------------------------
 248
 249 class wxCursorModule : public wxModule
 250 {
 251 public:
 252     virtual bool OnInit() { return true; }
 253
 254     virtual void OnExit()
 255     {
 256         wxDELETE(gs_cursorsHash);
 257     }
 258
 259 private:
 260     DECLARE_DYNAMIC_CLASS(wxCursorModule)
 261 };
 262
 263 IMPLEMENT_DYNAMIC_CLASS(wxCursorModule, wxModule)