src/motif/checkbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        checkbox.cpp
   3 // Purpose:     wxCheckBox
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "checkbox.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #include "wx/defs.h"
  20
  21 #include "wx/checkbox.h"
  22 #include "wx/tglbtn.h"
  23 #include "wx/utils.h"
  24
  25 #ifdef __VMS__
  26 #pragma message disable nosimpint
  27 #endif
  28 #include <Xm/Label.h>
  29 #include <Xm/LabelG.h>
  30 #include <Xm/ToggleB.h>
  31 #include <Xm/ToggleBG.h>
  32 #ifdef __VMS__
  33 #pragma message enable nosimpint
  34 #endif
  35
  36 // define symbols that are missing in old versions of Motif.
  37 #if defined(__VMS) || (XmVersion < 2000)
  38 #define XtDisplay XTDISPLAY
  39 #define XmNtoggleMode 0
  40 #define XmTOGGLE_INDETERMINATE 1
  41 #define XmTOGGLE_BOOLEAN 2
  42 #define XmUNSET 3
  43 #define XmSET 4
  44 #define XmINDETERMINATE 5
  45 #endif
  46
  47
  48 #include "wx/motif/private.h"
  49
  50 void wxCheckBoxCallback (Widget w, XtPointer clientData,
  51                          XtPointer ptr);
  52
  53 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox, wxControl)
  54
  55 // Single check box item
  56 bool wxCheckBox::Create(wxWindow *parent, wxWindowID id, const wxString& label,
  57                         const wxPoint& pos,
  58                         const wxSize& size, long style,
  59                         const wxValidator& validator,
  60                         const wxString& name)
  61 {
  62     if( !wxControl::CreateControl( parent, id, pos, size, style, validator,
  63                                    name ) )
  64         return FALSE;
  65
  66     wxString label1(wxStripMenuCodes(label));
  67     wxXmString text( label1 );
  68
  69     Widget parentWidget = (Widget) parent->GetClientWidget();
  70
  71     m_mainWidget = (WXWidget) XtVaCreateManagedWidget ("toggle",
  72         xmToggleButtonWidgetClass, parentWidget,
  73         wxFont::GetFontTag(), m_font.GetFontType(XtDisplay(parentWidget)),
  74         XmNlabelString, text(),
  75         XmNrecomputeSize, False,
  76         // XmNindicatorOn, XmINDICATOR_CHECK_BOX,
  77         // XmNfillOnSelect, False,
  78         XmNtoggleMode, Is3State() ? XmTOGGLE_INDETERMINATE : XmTOGGLE_BOOLEAN,
  79         NULL);
  80
  81     XtAddCallback( (Widget)m_mainWidget,
  82                    XmNvalueChangedCallback, (XtCallbackProc)wxCheckBoxCallback,
  83                    (XtPointer)this );
  84
  85     XmToggleButtonSetState ((Widget) m_mainWidget, FALSE, TRUE);
  86
  87     AttachWidget( parent, m_mainWidget, (WXWidget)NULL,
  88                   pos.x, pos.y, size.x, size.y );
  89
  90     ChangeBackgroundColour();
  91     return TRUE;
  92 }
  93
  94 void wxCheckBox::SetValue(bool val)
  95 {
  96     if (val)
  97     {
  98         Set3StateValue(wxCHK_CHECKED);
  99     }
 100     else
 101     {
 102         Set3StateValue(wxCHK_UNCHECKED);
 103     }
 104 }
 105
 106 bool wxCheckBox::GetValue() const
 107 {
 108     return (Get3StateValue() != 0);
 109 }
 110
 111 void wxCheckBox::Command (wxCommandEvent & event)
 112 {
 113     int state = event.GetInt();
 114     wxCHECK_RET( (state == wxCHK_UNCHECKED) || (state == wxCHK_CHECKED)
 115         || (state == wxCHK_UNDETERMINED),
 116         wxT("event.GetInt() returned an invalid checkbox state") );
 117
 118     Set3StateValue((wxCheckBoxState) state);
 119     ProcessCommand(event);
 120 }
 121
 122 void wxCheckBoxCallback (Widget WXUNUSED(w), XtPointer clientData,
 123                          XtPointer WXUNUSED(ptr))
 124 {
 125     wxCheckBox *item = (wxCheckBox *) clientData;
 126
 127     if (item->InSetValue())
 128         return;
 129
 130     wxCheckBoxState state = item->Get3StateValue();
 131
 132     if( !item->Is3rdStateAllowedForUser() && state == wxCHK_UNDETERMINED )
 133     {
 134         state = wxCHK_UNCHECKED;
 135         item->Set3StateValue( state );
 136     }
 137
 138     wxCommandEvent event( item->m_evtType, item->GetId() );
 139     event.SetInt( (int)state );
 140     event.SetEventObject( item );
 141     item->ProcessCommand( event );
 142 }
 143
 144 void wxCheckBox::ChangeBackgroundColour()
 145 {
 146     wxComputeColours (XtDisplay((Widget) m_mainWidget), & m_backgroundColour,
 147         (wxColour*) NULL);
 148
 149     XtVaSetValues ((Widget) m_mainWidget,
 150         XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
 151         XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
 152         XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
 153         XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
 154         NULL);
 155
 156     int selectPixel = wxBLACK->AllocColour(XtDisplay((Widget)m_mainWidget));
 157
 158     // Better to have the checkbox selection in black, or it's
 159     // hard to determine what state it is in.
 160     XtVaSetValues ((Widget) m_mainWidget,
 161            XmNselectColor, selectPixel,
 162         NULL);
 163 }
 164
 165 void wxCheckBox::DoSet3StateValue(wxCheckBoxState state)
 166 {
 167     m_inSetValue = true;
 168
 169     unsigned char value;
 170
 171     switch (state)
 172     {
 173     case wxCHK_UNCHECKED: value = XmUNSET; break;
 174     case wxCHK_CHECKED: value = XmSET; break;
 175     case wxCHK_UNDETERMINED: value = XmINDETERMINATE; break;
 176     default: wxASSERT(0); return;
 177     }
 178
 179     XtVaSetValues( (Widget) m_mainWidget,
 180                    XmNset, value,
 181                    NULL );
 182
 183     m_inSetValue = false;
 184 }
 185
 186 wxCheckBoxState wxCheckBox::DoGet3StateValue() const
 187 {
 188     unsigned char value = 0;
 189
 190     XtVaGetValues( (Widget) m_mainWidget,
 191                    XmNset, &value,
 192                    NULL );
 193
 194     switch (value)
 195     {
 196     case XmUNSET: return wxCHK_UNCHECKED;
 197     case XmSET: return wxCHK_CHECKED;
 198     case XmINDETERMINATE: return wxCHK_UNDETERMINED;
 199     }
 200
 201     // impossible...
 202     return wxCHK_UNDETERMINED;
 203 }
 204
 205 ///////////////////////////////////////////////////////////////////////////////
 206 // wxToggleButton
 207 ///////////////////////////////////////////////////////////////////////////////
 208
 209 #if wxUSE_TOGGLEBTN
 210
 211 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED)
 212 IMPLEMENT_DYNAMIC_CLASS(wxToggleButton, wxControl)
 213
 214 bool wxToggleButton::Create( wxWindow* parent, wxWindowID id,
 215                              const wxString& label,
 216                              const wxPoint& pos,
 217                              const wxSize& size,
 218                              long style,
 219                              const wxValidator& val,
 220                              const wxString &name )
 221 {
 222     if( !wxCheckBox::Create( parent, id, label, pos, size, style, val, name ) )
 223         return false;
 224
 225     XtVaSetValues( (Widget)m_mainWidget,
 226                    XmNindicatorSize, 0,
 227 #if XmVersion >= 2000
 228                    XmNindicatorOn, XmINDICATOR_NONE,
 229 #else
 230                    XmNindicatorOn, False,
 231 #endif
 232                    XmNfillOnSelect, False,
 233                    XmNshadowThickness, 2,
 234                    XmNalignment, XmALIGNMENT_CENTER,
 235                    XmNmarginLeft, 0,
 236                    XmNmarginRight, 0,
 237                    NULL );
 238
 239     // set it again, because the XtVaSetValue above resets it
 240     if( size.x != -1 || size.y != -1 )
 241         SetSize( size );
 242
 243     return true;
 244 }
 245
 246 #endif // wxUSE_TOGGLEBUTTON