src/mgl/cursor.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        cursor.cpp
   3 // Purpose:
   4 // Author:      Vaclav Slavik
   5 // Id:          $Id$
   6 // Copyright:   (c) 2001 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/utils.h"
  24 #include "wx/log.h"
  25 #include "wx/intl.h"
  26
  27 #include <mgraph.hpp>
  28
  29
  30 //-----------------------------------------------------------------------------
  31 // wxCursor
  32 //-----------------------------------------------------------------------------
  33
  34 class wxCursorRefData: public wxObjectRefData
  35 {
  36   public:
  37
  38     wxCursorRefData();
  39     ~wxCursorRefData();
  40
  41     MGLCursor *m_cursor;
  42 };
  43
  44 wxCursorRefData::wxCursorRefData()
  45 {
  46     m_cursor = (MGLCursor*) NULL;
  47 }
  48
  49 wxCursorRefData::~wxCursorRefData()
  50 {
  51     delete m_cursor;
  52 }
  53
  54 //-----------------------------------------------------------------------------
  55
  56 #define M_CURSORDATA ((wxCursorRefData *)m_refData)
  57
  58 IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
  59
  60 wxCursor::wxCursor()
  61 {
  62 }
  63
  64 wxCursor::wxCursor(int cursorId)
  65 {
  66     const char *cursorname = NULL;
  67     m_refData = new wxCursorRefData();
  68
  69     switch (cursorId)
  70     {
  71         case wxCURSOR_ARROW:           cursorname = "arrow.cur"; break;
  72         case wxCURSOR_BULLSEYE:        cursorname = "bullseye.cur"; break;
  73         case wxCURSOR_CHAR:            cursorname = "char.cur"; break;
  74         case wxCURSOR_CROSS:           cursorname = "cross.cur"; break;
  75         case wxCURSOR_HAND:            cursorname = "hand.cur"; break;
  76         case wxCURSOR_IBEAM:           cursorname = "ibeam.cur"; break;
  77         case wxCURSOR_LEFT_BUTTON:     cursorname = "leftbtn.cur"; break;
  78         case wxCURSOR_MAGNIFIER:       cursorname = "magnif1.cur"; break;
  79         case wxCURSOR_MIDDLE_BUTTON:   cursorname = "midbtn.cur"; break;
  80         case wxCURSOR_NO_ENTRY:        cursorname = "noentry.cur"; break;
  81         case wxCURSOR_PAINT_BRUSH:     cursorname = "pbrush.cur"; break;
  82         case wxCURSOR_PENCIL:          cursorname = "pencil.cur"; break;
  83         case wxCURSOR_POINT_LEFT:      cursorname = "pntleft.cur"; break;
  84         case wxCURSOR_POINT_RIGHT:     cursorname = "pntright.cur"; break;
  85         case wxCURSOR_QUESTION_ARROW:  cursorname = "query.cur"; break;
  86         case wxCURSOR_RIGHT_BUTTON:    cursorname = "rightbtn.cur"; break;
  87         case wxCURSOR_SIZENESW:        cursorname = "sizenesw.cur"; break;
  88         case wxCURSOR_SIZENS:          cursorname = "sizens.cur"; break;
  89         case wxCURSOR_SIZENWSE:        cursorname = "sizenwse.cur"; break;
  90         case wxCURSOR_SIZEWE:          cursorname = "sizewe.cur"; break;
  91         case wxCURSOR_SIZING:          cursorname = "size.cur"; break;
  92         case wxCURSOR_SPRAYCAN:        cursorname = "spraycan.cur"; break;
  93         case wxCURSOR_WAIT:            cursorname = "wait.cur"; break;
  94         case wxCURSOR_WATCH:           cursorname = "clock.cur"; break;
  95         case wxCURSOR_BLANK:           cursorname = "blank.cur"; break;
  96
  97         case wxCURSOR_NONE:
  98             // FIXME_MGL - make sure wxWindow uses cursor with
  99             //    GetMGLCursor() == NULL correctly, i.e. calls MS_hide()
 100             *this = wxNullCursor;
 101             return;
 102             break;
 103
 104         default:
 105             wxFAIL_MSG(wxT("unsupported cursor type"));
 106             break;
 107     }
 108
 109     M_CURSORDATA->m_cursor = new MGLCursor(cursorname);
 110
 111     // if we cannot load arrow cursor, use MGL's default arrow cursor:
 112     if ( !M_CURSORDATA->m_cursor->valid() && cursorId == wxCURSOR_ARROW )
 113     {
 114         delete M_CURSORDATA->m_cursor;
 115         M_CURSORDATA->m_cursor = new MGLCursor(MGL_DEF_CURSOR);
 116     }
 117
 118     if ( !M_CURSORDATA->m_cursor->valid() )
 119     {
 120         wxLogError(_("Couldn't create cursor."));
 121         UnRef();
 122     }
 123 }
 124
 125 wxCursor::wxCursor(const char WXUNUSED(bits)[],
 126                    int WXUNUSED(width),
 127                    int WXUNUSED(height),
 128                    int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY),
 129                    const char WXUNUSED(maskBits)[],
 130                    wxColour * WXUNUSED(fg), wxColour * WXUNUSED(bg) )
 131 {
 132     //FIXME_MGL
 133 }
 134
 135 wxCursor::wxCursor(const wxString& cursor_file,
 136                    long flags,
 137                    int hotSpotX, int hotSpotY)
 138 {
 139     if ( flags == wxBITMAP_TYPE_CUR || flags == wxBITMAP_TYPE_CUR_RESOURCE )
 140     {
 141         m_refData = new wxCursorRefData();
 142         M_CURSORDATA->m_cursor = new MGLCursor(cursor_file.mb_str());
 143         if ( !M_CURSORDATA->m_cursor->valid() )
 144         {
 145             wxLogError(_("Couldn't create cursor."));
 146             UnRef();
 147         }
 148     }
 149     else
 150     {
 151         wxLogError(wxT("Cannot load cursor resource of this type."));
 152     }
 153 }
 154
 155 wxCursor::wxCursor(const wxCursor &cursor)
 156 {
 157     Ref(cursor);
 158 }
 159
 160 wxCursor::~wxCursor()
 161 {
 162     // wxObject unrefs data
 163 }
 164
 165 wxCursor& wxCursor::operator = (const wxCursor& cursor)
 166 {
 167     if ( *this == cursor )
 168         return (*this);
 169     Ref(cursor);
 170     return *this;
 171 }
 172
 173 bool wxCursor::operator == (const wxCursor& cursor) const
 174 {
 175     return (m_refData == cursor.m_refData);
 176 }
 177
 178 bool wxCursor::operator != (const wxCursor& cursor) const
 179 {
 180     return (m_refData != cursor.m_refData);
 181 }
 182
 183 bool wxCursor::Ok() const
 184 {
 185     return (m_refData != NULL);
 186 }
 187
 188 MGLCursor *wxCursor::GetMGLCursor() const
 189 {
 190     return M_CURSORDATA->m_cursor;
 191 }
 192
 193
 194
 195 // ----------------------------------------------------------------------------
 196 // Global cursor setting
 197 // ----------------------------------------------------------------------------
 198
 199
 200 void wxSetCursor(const wxCursor& cursor)
 201 {
 202     if ( cursor.Ok() )
 203     {
 204         //MGL_setGlobalCursor(cursor.GetMGLCursor());
 205         // FIXME_MGL -- needs MGL WM first
 206     }
 207 }
 208
 209
 210
 211 //-----------------------------------------------------------------------------
 212 // busy cursor routines
 213 //-----------------------------------------------------------------------------
 214
 215 // FIXME_MGL -- do we need this? It may be better to incorporate
 216 //              support for it into MGL (a stack of global cursors?)
 217 static wxCursor  gs_savedCursor;
 218 static wxCursor  g_globalCursor;
 219 static int       gs_busyCount = 0;
 220
 221 const wxCursor &wxBusyCursor::GetStoredCursor()
 222 {
 223     return gs_savedCursor;
 224 }
 225
 226 const wxCursor wxBusyCursor::GetBusyCursor()
 227 {
 228     return wxCursor(wxCURSOR_WAIT);
 229 }
 230
 231 void wxEndBusyCursor()
 232 {
 233     if ( --gs_busyCount > 0 ) return;
 234
 235     wxSetCursor(gs_savedCursor);
 236     gs_savedCursor = wxNullCursor;
 237     //wxYield(); FIXME_MGL - needed?
 238 }
 239
 240 void wxBeginBusyCursor(wxCursor *WXUNUSED(cursor))
 241 {
 242     if ( gs_busyCount++ > 0 ) return;
 243
 244     wxASSERT_MSG( !gs_savedCursor.Ok(),
 245                   wxT("forgot to call wxEndBusyCursor, will leak memory") );
 246
 247     gs_savedCursor = g_globalCursor;
 248     wxSetCursor(wxCursor(wxCURSOR_WAIT));
 249     //wxYield(); FIXME_MGL - needed?
 250 }
 251
 252 bool wxIsBusy()
 253 {
 254     return (gs_busyCount > 0);
 255 }
 256