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