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 // Copyright:   (c) Julian Smart
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/cursor.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/app.h"
  18     #include "wx/utils.h"
  19     #include "wx/icon.h"
  20     #include "wx/gdicmn.h"
  21     #include "wx/image.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 wxGDIRefData
  35 {
  36 public:
  37
  38     wxCursorRefData();
  39     virtual ~wxCursorRefData();
  40
  41     WXCursor     m_cursor;
  42     WXDisplay   *m_display;
  43
  44 private:
  45     // There is no way to copy m_cursor so we can't implement a copy ctor
  46     // properly.
  47     wxDECLARE_NO_COPY_CLASS(wxCursorRefData);
  48 };
  49
  50 wxCursorRefData::wxCursorRefData()
  51 {
  52     m_cursor = NULL;
  53     m_display = NULL;
  54 }
  55
  56 wxCursorRefData::~wxCursorRefData()
  57 {
  58     if (m_cursor)
  59         XFreeCursor( (Display*) m_display, (Cursor) m_cursor );
  60 }
  61
  62 //-----------------------------------------------------------------------------
  63
  64 #define M_CURSORDATA ((wxCursorRefData *)m_refData)
  65
  66 IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
  67
  68 wxCursor::wxCursor()
  69 {
  70
  71 }
  72
  73 void wxCursor::InitFromStock( wxStockCursor cursorId )
  74 {
  75     m_refData = new wxCursorRefData();
  76
  77 #if wxUSE_NANOX
  78     // TODO Create some standard cursors from bitmaps.
  79
  80
  81 #else
  82     // !wxUSE_NANOX
  83
  84     M_CURSORDATA->m_display = wxGlobalDisplay();
  85     wxASSERT_MSG( M_CURSORDATA->m_display, wxT("No display") );
  86
  87     int x_cur = XC_left_ptr;
  88     switch (cursorId)
  89     {
  90         case wxCURSOR_DEFAULT:          x_cur = XC_left_ptr; break;
  91         case wxCURSOR_HAND:             x_cur = XC_hand1; break;
  92         case wxCURSOR_CROSS:            x_cur = XC_crosshair; break;
  93         case wxCURSOR_SIZEWE:           x_cur = XC_sb_h_double_arrow; break;
  94         case wxCURSOR_SIZENS:           x_cur = XC_sb_v_double_arrow; break;
  95         case wxCURSOR_ARROWWAIT:
  96         case wxCURSOR_WAIT:
  97         case wxCURSOR_WATCH:            x_cur = XC_watch; break;
  98         case wxCURSOR_SIZING:           x_cur = XC_sizing; break;
  99         case wxCURSOR_SPRAYCAN:         x_cur = XC_spraycan; break;
 100         case wxCURSOR_IBEAM:            x_cur = XC_xterm; break;
 101         case wxCURSOR_PENCIL:           x_cur = XC_pencil; break;
 102         case wxCURSOR_NO_ENTRY:         x_cur = XC_pirate; break;
 103         case wxCURSOR_SIZENWSE:
 104         case wxCURSOR_SIZENESW:         x_cur = XC_fleur; break;
 105         case wxCURSOR_QUESTION_ARROW:   x_cur = XC_question_arrow; break;
 106         case wxCURSOR_PAINT_BRUSH:      x_cur = XC_spraycan; break;
 107         case wxCURSOR_MAGNIFIER:        x_cur = XC_plus; break;
 108         case wxCURSOR_CHAR:             x_cur = XC_xterm; break;
 109         case wxCURSOR_LEFT_BUTTON:      x_cur = XC_leftbutton; break;
 110         case wxCURSOR_MIDDLE_BUTTON:    x_cur = XC_middlebutton; break;
 111         case wxCURSOR_RIGHT_BUTTON:     x_cur = XC_rightbutton; break;
 112         case wxCURSOR_BULLSEYE:         x_cur = XC_target; break;
 113
 114         case wxCURSOR_POINT_LEFT:       x_cur = XC_sb_left_arrow; break;
 115         case wxCURSOR_POINT_RIGHT:      x_cur = XC_sb_right_arrow; break;
 116 /*
 117         case wxCURSOR_DOUBLE_ARROW:     x_cur = XC_double_arrow; break;
 118         case wxCURSOR_CROSS_REVERSE:    x_cur = XC_cross_reverse; break;
 119         case wxCURSOR_BASED_ARROW_UP:   x_cur = XC_based_arrow_up; break;
 120         case wxCURSOR_BASED_ARROW_DOWN: x_cur = XC_based_arrow_down; break;
 121 */
 122         default:
 123             wxFAIL_MSG(wxT("unsupported cursor type"));
 124             // will use the standard one
 125     }
 126
 127     M_CURSORDATA->m_cursor = (WXCursor) XCreateFontCursor( (Display*) M_CURSORDATA->m_display, x_cur );
 128 #endif
 129 }
 130
 131 wxCursor::wxCursor(const wxString& WXUNUSED(name),
 132                     wxBitmapType WXUNUSED(type),
 133                     int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY))
 134 {
 135    wxFAIL_MSG( wxT("wxCursor creation from file not yet implemented") );
 136 }
 137
 138 #if wxUSE_IMAGE
 139 wxCursor::wxCursor( const wxImage & WXUNUSED(image) )
 140 {
 141    wxFAIL_MSG( wxT("wxCursor creation from wxImage not yet implemented") );
 142 }
 143 #endif
 144
 145 wxCursor::~wxCursor()
 146 {
 147 }
 148
 149 wxGDIRefData *wxCursor::CreateGDIRefData() const
 150 {
 151     return new wxCursorRefData;
 152 }
 153
 154 wxGDIRefData *
 155 wxCursor::CloneGDIRefData(const wxGDIRefData * WXUNUSED(data)) const
 156 {
 157     wxFAIL_MSG( wxS("Cloning cursors is not implemented in wxX11.") );
 158
 159     return new wxCursorRefData;
 160 }
 161
 162 WXCursor wxCursor::GetCursor() const
 163 {
 164     return M_CURSORDATA->m_cursor;
 165 }
 166
 167 //-----------------------------------------------------------------------------
 168 // busy cursor routines
 169 //-----------------------------------------------------------------------------
 170
 171 /* extern */ wxCursor g_globalCursor;
 172
 173 static wxCursor  gs_savedCursor;
 174 static int       gs_busyCount = 0;
 175
 176 const wxCursor &wxBusyCursor::GetStoredCursor()
 177 {
 178     return gs_savedCursor;
 179 }
 180
 181 const wxCursor wxBusyCursor::GetBusyCursor()
 182 {
 183     return wxCursor(wxCURSOR_WATCH);
 184 }
 185
 186 void wxEndBusyCursor()
 187 {
 188     if (--gs_busyCount > 0)
 189         return;
 190
 191     wxSetCursor( gs_savedCursor );
 192     gs_savedCursor = wxNullCursor;
 193
 194     if (wxTheApp)
 195         wxTheApp->ProcessIdle();
 196 }
 197
 198 void wxBeginBusyCursor( const wxCursor *WXUNUSED(cursor) )
 199 {
 200     if (gs_busyCount++ > 0)
 201         return;
 202
 203     wxASSERT_MSG( !gs_savedCursor.IsOk(),
 204                   wxT("forgot to call wxEndBusyCursor, will leak memory") );
 205
 206     gs_savedCursor = g_globalCursor;
 207
 208     wxSetCursor( wxCursor(wxCURSOR_WATCH) );
 209
 210     if (wxTheApp)
 211         wxTheApp->ProcessIdle();
 212 }
 213
 214 bool wxIsBusy()
 215 {
 216     return gs_busyCount > 0;
 217 }
 218
 219 void wxSetCursor( const wxCursor& cursor )
 220 {
 221     g_globalCursor = cursor;
 222 }