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