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 #include <X11/cursorfont.h>
  24
  25 //-----------------------------------------------------------------------------
  26 // wxCursor
  27 //-----------------------------------------------------------------------------
  28
  29 class wxCursorRefData: public wxObjectRefData
  30 {
  31 public:
  32
  33     wxCursorRefData();
  34     ~wxCursorRefData();
  35
  36     WXCursor     m_cursor;
  37     WXDisplay   *m_display;
  38 };
  39
  40 wxCursorRefData::wxCursorRefData()
  41 {
  42     m_cursor = NULL;
  43     m_display = NULL;
  44 }
  45
  46 wxCursorRefData::~wxCursorRefData()
  47 {
  48     if (m_cursor)
  49         XFreeCursor( (Display*) m_display, (Cursor) m_cursor );
  50 }
  51
  52 //-----------------------------------------------------------------------------
  53
  54 #define M_CURSORDATA ((wxCursorRefData *)m_refData)
  55
  56 IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
  57
  58 wxCursor::wxCursor()
  59 {
  60
  61 }
  62
  63 wxCursor::wxCursor( int cursorId )
  64 {
  65     m_refData = new wxCursorRefData();
  66
  67     M_CURSORDATA->m_display = wxGlobalDisplay();
  68     wxASSERT_MSG( M_CURSORDATA->m_display, wxT("No display") );
  69
  70     int x_cur = XC_left_ptr;
  71     switch (cursorId)
  72     {
  73         case wxCURSOR_DEFAULT:          x_cur = XC_left_ptr; break;
  74         case wxCURSOR_HAND:             x_cur = XC_hand1; break;
  75         case wxCURSOR_CROSS:            x_cur = XC_crosshair; break;
  76         case wxCURSOR_SIZEWE:           x_cur = XC_sb_h_double_arrow; break;
  77         case wxCURSOR_SIZENS:           x_cur = XC_sb_v_double_arrow; break;
  78         case wxCURSOR_ARROWWAIT:
  79         case wxCURSOR_WAIT:
  80         case wxCURSOR_WATCH:            x_cur = XC_watch; break;
  81         case wxCURSOR_SIZING:           x_cur = XC_sizing; break;
  82         case wxCURSOR_SPRAYCAN:         x_cur = XC_spraycan; break;
  83         case wxCURSOR_IBEAM:            x_cur = XC_xterm; break;
  84         case wxCURSOR_PENCIL:           x_cur = XC_pencil; break;
  85         case wxCURSOR_NO_ENTRY:         x_cur = XC_pirate; break;
  86         case wxCURSOR_SIZENWSE:
  87         case wxCURSOR_SIZENESW:         x_cur = XC_fleur; break;
  88         case wxCURSOR_QUESTION_ARROW:   x_cur = XC_question_arrow; break;
  89         case wxCURSOR_PAINT_BRUSH:      x_cur = XC_spraycan; break;
  90         case wxCURSOR_MAGNIFIER:        x_cur = XC_plus; break;
  91         case wxCURSOR_CHAR:             x_cur = XC_xterm; break;
  92         case wxCURSOR_LEFT_BUTTON:      x_cur = XC_leftbutton; break;
  93         case wxCURSOR_MIDDLE_BUTTON:    x_cur = XC_middlebutton; break;
  94         case wxCURSOR_RIGHT_BUTTON:     x_cur = XC_rightbutton; break;
  95         case wxCURSOR_BULLSEYE:         x_cur = XC_target; break;
  96
  97         case wxCURSOR_POINT_LEFT:       x_cur = XC_sb_left_arrow; break;
  98         case wxCURSOR_POINT_RIGHT:      x_cur = XC_sb_right_arrow; break;
  99 /*
 100         case wxCURSOR_DOUBLE_ARROW:     x_cur = XC_double_arrow; break;
 101         case wxCURSOR_CROSS_REVERSE:    x_cur = XC_cross_reverse; break;
 102         case wxCURSOR_BASED_ARROW_UP:   x_cur = XC_based_arrow_up; break;
 103         case wxCURSOR_BASED_ARROW_DOWN: x_cur = XC_based_arrow_down; break;
 104 */
 105         default:
 106             wxFAIL_MSG(wxT("unsupported cursor type"));
 107             // will use the standard one
 108     }
 109
 110     M_CURSORDATA->m_cursor = (WXCursor) XCreateFontCursor( (Display*) M_CURSORDATA->m_display, x_cur );
 111 }
 112
 113 wxCursor::wxCursor(const char bits[], int width, int  height,
 114                    int hotSpotX, int hotSpotY,
 115                    const char maskBits[], wxColour *fg, wxColour *bg)
 116 {
 117    wxFAIL_MSG( "wxCursor creation from bits not yet implemented" );
 118 }
 119
 120
 121 wxCursor::wxCursor( const wxCursor &cursor )
 122 {
 123     Ref( cursor );
 124 }
 125
 126 #if wxUSE_IMAGE
 127 wxCursor::wxCursor( const wxImage & image )
 128 {
 129    wxFAIL_MSG( "wxCursor creation from wxImage not yet implemented" );
 130 }
 131 #endif
 132
 133 wxCursor::~wxCursor()
 134 {
 135 }
 136
 137 wxCursor& wxCursor::operator = ( const wxCursor& cursor )
 138 {
 139     if (*this == cursor)
 140         return (*this);
 141
 142     Ref( cursor );
 143
 144     return *this;
 145 }
 146
 147 bool wxCursor::operator == ( const wxCursor& cursor ) const
 148 {
 149     return m_refData == cursor.m_refData;
 150 }
 151
 152 bool wxCursor::operator != ( const wxCursor& cursor ) const
 153 {
 154     return m_refData != cursor.m_refData;
 155 }
 156
 157 bool wxCursor::Ok() const
 158 {
 159     return (m_refData != NULL);
 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->SendIdleEvents();
 196 }
 197
 198 void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) )
 199 {
 200     if (gs_busyCount++ > 0)
 201         return;
 202
 203     wxASSERT_MSG( !gs_savedCursor.Ok(),
 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->SendIdleEvents();
 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 }