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 #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
 113         default:
 114             wxFAIL_MSG(wxT("unsupported cursor type"));
 115             break;
 116     }
 117
 118     M_CURSORDATA->m_cursor = new MGLCursor(cursorname);
 119
 120     // if we cannot load arrow cursor, use MGL's default arrow cursor:
 121     if ( !M_CURSORDATA->m_cursor->valid() && cursorId == wxCURSOR_ARROW )
 122     {
 123         delete M_CURSORDATA->m_cursor;
 124         M_CURSORDATA->m_cursor = new MGLCursor(MGL_DEF_CURSOR);
 125     }
 126
 127     if ( !M_CURSORDATA->m_cursor->valid() )
 128     {
 129         wxLogError(_("Couldn't create cursor."));
 130         UnRef();
 131     }
 132     else
 133     {
 134         (*gs_cursorsHash)[cursorId] = *this;
 135         wxLogTrace(_T("mglcursor"), _T("cursor id %i added to cache (%s)"),
 136                    cursorId, cursorname);
 137     }
 138 }
 139
 140 wxCursor::wxCursor(const char WXUNUSED(bits)[],
 141                    int WXUNUSED(width),
 142                    int WXUNUSED(height),
 143                    int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY),
 144                    const char WXUNUSED(maskBits)[],
 145                    wxColour * WXUNUSED(fg), wxColour * WXUNUSED(bg) )
 146 {
 147     //FIXME_MGL
 148 }
 149
 150 wxCursor::wxCursor(const wxString& cursor_file,
 151                    long flags,
 152                    int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY))
 153 {
 154     if ( flags == wxBITMAP_TYPE_CUR || flags == wxBITMAP_TYPE_CUR_RESOURCE )
 155     {
 156         m_refData = new wxCursorRefData();
 157         M_CURSORDATA->m_cursor = new MGLCursor(cursor_file.mb_str());
 158         if ( !M_CURSORDATA->m_cursor->valid() )
 159         {
 160             wxLogError(_("Couldn't create cursor."));
 161             UnRef();
 162         }
 163     }
 164     else
 165     {
 166         wxLogError(wxT("Cannot load cursor resource of this type."));
 167     }
 168 }
 169
 170 wxCursor::~wxCursor()
 171 {
 172     // wxObject unrefs data
 173 }
 174
 175 bool wxCursor::operator == (const wxCursor& cursor) const
 176 {
 177     return (m_refData == cursor.m_refData);
 178 }
 179
 180 bool wxCursor::operator != (const wxCursor& cursor) const
 181 {
 182     return (m_refData != cursor.m_refData);
 183 }
 184
 185 bool wxCursor::Ok() const
 186 {
 187     return (m_refData != NULL);
 188 }
 189
 190 MGLCursor *wxCursor::GetMGLCursor() const
 191 {
 192     return M_CURSORDATA->m_cursor;
 193 }
 194
 195
 196
 197 // ----------------------------------------------------------------------------
 198 // Global cursor setting
 199 // ----------------------------------------------------------------------------
 200
 201 static wxCursor  gs_globalCursor = wxNullCursor;
 202
 203 void wxSetCursor(const wxCursor& cursor)
 204 {
 205     if ( cursor.Ok() )
 206     {
 207         if ( g_winMng )
 208             MGL_wmSetGlobalCursor(g_winMng, *cursor.GetMGLCursor());
 209         gs_globalCursor = cursor;
 210     }
 211     else
 212     {
 213         if ( g_winMng )
 214             MGL_wmSetGlobalCursor(g_winMng, NULL);
 215         gs_globalCursor = wxNullCursor;
 216     }
 217 }
 218
 219
 220
 221 //-----------------------------------------------------------------------------
 222 // busy cursor routines
 223 //-----------------------------------------------------------------------------
 224
 225 static wxCursor  gs_savedCursor = wxNullCursor;
 226 static int       gs_busyCount = 0;
 227
 228 const wxCursor &wxBusyCursor::GetStoredCursor()
 229 {
 230     return gs_savedCursor;
 231 }
 232
 233 const wxCursor wxBusyCursor::GetBusyCursor()
 234 {
 235     return gs_globalCursor;
 236 }
 237
 238 void wxEndBusyCursor()
 239 {
 240     if ( --gs_busyCount > 0 ) return;
 241
 242     wxSetCursor(gs_savedCursor);
 243     gs_savedCursor = wxNullCursor;
 244 }
 245
 246 void wxBeginBusyCursor(wxCursor *cursor)
 247 {
 248     if ( gs_busyCount++ > 0 ) return;
 249
 250     wxASSERT_MSG( !gs_savedCursor.Ok(),
 251                   wxT("forgot to call wxEndBusyCursor, will leak memory") );
 252
 253     gs_savedCursor = gs_globalCursor;
 254     if ( cursor->Ok() )
 255         wxSetCursor(*cursor);
 256     else
 257         wxSetCursor(wxCursor(wxCURSOR_WAIT));
 258 }
 259
 260 bool wxIsBusy()
 261 {
 262     return (gs_busyCount > 0);
 263 }
 264
 265
 266
 267 //-----------------------------------------------------------------------------
 268 // module - clean up code
 269 //-----------------------------------------------------------------------------
 270
 271 class wxCursorModule : public wxModule
 272 {
 273 public:
 274     virtual bool OnInit() { return true; }
 275
 276     virtual void OnExit()
 277     {
 278         wxDELETE(gs_cursorsHash);
 279     }
 280
 281 private:
 282     DECLARE_DYNAMIC_CLASS(wxCursorModule)
 283 };
 284
 285 IMPLEMENT_DYNAMIC_CLASS(wxCursorModule, wxModule)