src/x11/cursor.cpp

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