src/x11/cursor.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        cursor.cpp
   3 // Purpose:     wxCursor class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "cursor.h"
  14 #endif
  15
  16 #include "wx/cursor.h"
  17 #include "wx/gdicmn.h"
  18 #include "wx/icon.h"
  19 #include "wx/app.h"
  20 #include "wx/utils.h"
  21
  22 #include "wx/x11/private.h"
  23
  24 #if !wxUSE_NANOX
  25 #include <X11/cursorfont.h>
  26 #endif
  27
  28 //-----------------------------------------------------------------------------
  29 // wxCursor
  30 //-----------------------------------------------------------------------------
  31
  32 class wxCursorRefData: public wxObjectRefData
  33 {
  34 public:
  35
  36     wxCursorRefData();
  37     ~wxCursorRefData();
  38
  39     WXCursor     m_cursor;
  40     WXDisplay   *m_display;
  41 };
  42
  43 wxCursorRefData::wxCursorRefData()
  44 {
  45     m_cursor = NULL;
  46     m_display = NULL;
  47 }
  48
  49 wxCursorRefData::~wxCursorRefData()
  50 {
  51     if (m_cursor)
  52         XFreeCursor( (Display*) m_display, (Cursor) m_cursor );
  53 }
  54
  55 //-----------------------------------------------------------------------------
  56
  57 #define M_CURSORDATA ((wxCursorRefData *)m_refData)
  58
  59 IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
  60
  61 wxCursor::wxCursor()
  62 {
  63
  64 }
  65
  66 wxCursor::wxCursor( int cursorId )
  67 {
  68     m_refData = new wxCursorRefData();
  69
  70 #if wxUSE_NANOX
  71     // TODO Create some standard cursors from bitmaps.
  72
  73
  74 #else
  75     // !wxUSE_NANOX
  76
  77     M_CURSORDATA->m_display = wxGlobalDisplay();
  78     wxASSERT_MSG( M_CURSORDATA->m_display, wxT("No display") );
  79
  80     int x_cur = XC_left_ptr;
  81     switch (cursorId)
  82     {
  83         case wxCURSOR_DEFAULT:          x_cur = XC_left_ptr; break;
  84         case wxCURSOR_HAND:             x_cur = XC_hand1; break;
  85         case wxCURSOR_CROSS:            x_cur = XC_crosshair; break;
  86         case wxCURSOR_SIZEWE:           x_cur = XC_sb_h_double_arrow; break;
  87         case wxCURSOR_SIZENS:           x_cur = XC_sb_v_double_arrow; break;
  88         case wxCURSOR_ARROWWAIT:
  89         case wxCURSOR_WAIT:
  90         case wxCURSOR_WATCH:            x_cur = XC_watch; break;
  91         case wxCURSOR_SIZING:           x_cur = XC_sizing; break;
  92         case wxCURSOR_SPRAYCAN:         x_cur = XC_spraycan; break;
  93         case wxCURSOR_IBEAM:            x_cur = XC_xterm; break;
  94         case wxCURSOR_PENCIL:           x_cur = XC_pencil; break;
  95         case wxCURSOR_NO_ENTRY:         x_cur = XC_pirate; break;
  96         case wxCURSOR_SIZENWSE:
  97         case wxCURSOR_SIZENESW:         x_cur = XC_fleur; break;
  98         case wxCURSOR_QUESTION_ARROW:   x_cur = XC_question_arrow; break;
  99         case wxCURSOR_PAINT_BRUSH:      x_cur = XC_spraycan; break;
 100         case wxCURSOR_MAGNIFIER:        x_cur = XC_plus; break;
 101         case wxCURSOR_CHAR:             x_cur = XC_xterm; break;
 102         case wxCURSOR_LEFT_BUTTON:      x_cur = XC_leftbutton; break;
 103         case wxCURSOR_MIDDLE_BUTTON:    x_cur = XC_middlebutton; break;
 104         case wxCURSOR_RIGHT_BUTTON:     x_cur = XC_rightbutton; break;
 105         case wxCURSOR_BULLSEYE:         x_cur = XC_target; break;
 106
 107         case wxCURSOR_POINT_LEFT:       x_cur = XC_sb_left_arrow; break;
 108         case wxCURSOR_POINT_RIGHT:      x_cur = XC_sb_right_arrow; break;
 109 /*
 110         case wxCURSOR_DOUBLE_ARROW:     x_cur = XC_double_arrow; break;
 111         case wxCURSOR_CROSS_REVERSE:    x_cur = XC_cross_reverse; break;
 112         case wxCURSOR_BASED_ARROW_UP:   x_cur = XC_based_arrow_up; break;
 113         case wxCURSOR_BASED_ARROW_DOWN: x_cur = XC_based_arrow_down; break;
 114 */
 115         default:
 116             wxFAIL_MSG(wxT("unsupported cursor type"));
 117             // will use the standard one
 118     }
 119
 120     M_CURSORDATA->m_cursor = (WXCursor) XCreateFontCursor( (Display*) M_CURSORDATA->m_display, x_cur );
 121 #endif
 122 }
 123
 124 wxCursor::wxCursor(const char bits[], int width, int  height,
 125                    int hotSpotX, int hotSpotY,
 126                    const char maskBits[], wxColour *fg, wxColour *bg)
 127 {
 128    wxFAIL_MSG( "wxCursor creation from bits not yet implemented" );
 129 }
 130
 131
 132 wxCursor::wxCursor( const wxCursor &cursor )
 133 {
 134     Ref( cursor );
 135 }
 136
 137 #if wxUSE_IMAGE
 138 wxCursor::wxCursor( const wxImage & image )
 139 {
 140    wxFAIL_MSG( "wxCursor creation from wxImage not yet implemented" );
 141 }
 142 #endif
 143
 144 wxCursor::~wxCursor()
 145 {
 146 }
 147
 148 wxCursor& wxCursor::operator = ( const wxCursor& cursor )
 149 {
 150     if (*this == cursor)
 151         return (*this);
 152
 153     Ref( cursor );
 154
 155     return *this;
 156 }
 157
 158 bool wxCursor::operator == ( const wxCursor& cursor ) const
 159 {
 160     return m_refData == cursor.m_refData;
 161 }
 162
 163 bool wxCursor::operator != ( const wxCursor& cursor ) const
 164 {
 165     return m_refData != cursor.m_refData;
 166 }
 167
 168 bool wxCursor::Ok() const
 169 {
 170     return (m_refData != NULL);
 171 }
 172
 173 WXCursor wxCursor::GetCursor() const
 174 {
 175     return M_CURSORDATA->m_cursor;
 176 }
 177
 178 //-----------------------------------------------------------------------------
 179 // busy cursor routines
 180 //-----------------------------------------------------------------------------
 181
 182 /* extern */ wxCursor g_globalCursor;
 183
 184 static wxCursor  gs_savedCursor;
 185 static int       gs_busyCount = 0;
 186
 187 const wxCursor &wxBusyCursor::GetStoredCursor()
 188 {
 189     return gs_savedCursor;
 190 }
 191
 192 const wxCursor wxBusyCursor::GetBusyCursor()
 193 {
 194     return wxCursor(wxCURSOR_WATCH);
 195 }
 196
 197 void wxEndBusyCursor()
 198 {
 199     if (--gs_busyCount > 0)
 200         return;
 201
 202     wxSetCursor( gs_savedCursor );
 203     gs_savedCursor = wxNullCursor;
 204
 205     if (wxTheApp)
 206         wxTheApp->SendIdleEvents();
 207 }
 208
 209 void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) )
 210 {
 211     if (gs_busyCount++ > 0)
 212         return;
 213
 214     wxASSERT_MSG( !gs_savedCursor.Ok(),
 215                   wxT("forgot to call wxEndBusyCursor, will leak memory") );
 216
 217     gs_savedCursor = g_globalCursor;
 218
 219     wxSetCursor( wxCursor(wxCURSOR_WATCH) );
 220
 221     if (wxTheApp)
 222         wxTheApp->SendIdleEvents();
 223 }
 224
 225 bool wxIsBusy()
 226 {
 227     return gs_busyCount > 0;
 228 }
 229
 230 void wxSetCursor( const wxCursor& cursor )
 231 {
 232     g_globalCursor = cursor;
 233 }