src/motif/combobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        combobox.cpp
   3 // Purpose:     wxComboBox 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 "combobox.h"
  14 #endif
  15
  16 #include "wx/combobox.h"
  17
  18 #if wxUSE_COMBOBOX
  19
  20 #include <Xm/Xm.h>
  21 #include "xmcombo/xmcombo.h"
  22
  23 void  wxComboBoxCallback (Widget w, XtPointer clientData,
  24                    XmComboBoxSelectionCallbackStruct * cbs);
  25
  26 #if !USE_SHARED_LIBRARY
  27 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
  28 #endif
  29
  30 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
  31            const wxString& value,
  32            const wxPoint& pos,
  33            const wxSize& size,
  34                    int n, const wxString choices[],
  35                    long style,
  36            const wxValidator& validator,
  37            const wxString& name)
  38 {
  39     SetName(name);
  40     SetValidator(validator);
  41     m_noStrings = n;
  42     m_windowStyle = style;
  43     m_backgroundColour = parent->GetBackgroundColour();
  44     m_foregroundColour = parent->GetForegroundColour();
  45
  46     if (parent) parent->AddChild(this);
  47
  48     if ( id == -1 )
  49         m_windowId = (int)NewControlId();
  50     else
  51         m_windowId = id;
  52
  53     Widget parentWidget = (Widget) parent->GetClientWidget();
  54
  55     Widget buttonWidget = XtVaCreateManagedWidget((char*) (const char*) name,
  56                                          xmComboBoxWidgetClass, parentWidget,
  57                                          XmNmarginHeight, 0,
  58                                          XmNmarginWidth, 0,
  59                                          XmNshowLabel, False,
  60        XmNeditable, ((style & wxCB_READONLY) != wxCB_READONLY),
  61        XmNsorted, ((style & wxCB_SORT) == wxCB_SORT),
  62        XmNstaticList, ((style & wxCB_SIMPLE) == wxCB_SIMPLE),
  63                                          NULL);
  64
  65     XtAddCallback (buttonWidget, XmNselectionCallback, (XtCallbackProc) wxComboBoxCallback,
  66                  (XtPointer) this);
  67     XtAddCallback (buttonWidget, XmNvalueChangedCallback, (XtCallbackProc) wxComboBoxCallback,
  68                  (XtPointer) this);
  69
  70     int i;
  71     for (i = 0; i < n; i++)
  72     {
  73         XmString str = XmStringCreateLtoR((char*) (const char*) choices[i], XmSTRING_DEFAULT_CHARSET);
  74         XmComboBoxAddItem(buttonWidget, str, 0);
  75         XmStringFree(str);
  76         m_stringList.Add(choices[i]);
  77     }
  78     m_noStrings = n;
  79
  80     m_mainWidget = (Widget) buttonWidget;
  81
  82     XtManageChild (buttonWidget);
  83
  84     SetValue(value);
  85
  86     m_windowFont = parent->GetFont();
  87     ChangeFont(FALSE);
  88
  89     SetCanAddEventHandler(TRUE);
  90     AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y);
  91
  92     ChangeBackgroundColour();
  93
  94     return TRUE;
  95 }
  96
  97 wxComboBox::~wxComboBox()
  98 {
  99     DetachWidget((Widget) m_mainWidget); // Removes event handlers
 100     XtDestroyWidget((Widget) m_mainWidget);
 101     m_mainWidget = (WXWidget) 0;
 102 }
 103
 104 void wxComboBox::SetSize(int x, int y, int width, int height, int sizeFlags)
 105 {
 106     // Necessary so it doesn't call wxChoice::SetSize
 107     wxWindow::SetSize(x, y, width, height, sizeFlags);
 108 }
 109
 110 wxString wxComboBox::GetValue() const
 111 {
 112     char *s = XmComboBoxGetString ((Widget) m_mainWidget);
 113     if (s)
 114     {
 115         wxString str(s);
 116         XtFree (s);
 117         return str;
 118     }
 119     else
 120         return wxEmptyString;
 121 }
 122
 123 void wxComboBox::SetValue(const wxString& value)
 124 {
 125     m_inSetValue = TRUE;
 126     if (!value.IsNull())
 127         XmComboBoxSetString ((Widget) m_mainWidget, (char*) (const char*) value);
 128     m_inSetValue = FALSE;
 129 }
 130
 131 void wxComboBox::Append(const wxString& item)
 132 {
 133     XmString str = XmStringCreateLtoR((char*) (const char*) item, XmSTRING_DEFAULT_CHARSET);
 134     XmComboBoxAddItem((Widget) m_mainWidget, str, 0);
 135     m_stringList.Add(item);
 136     XmStringFree(str);
 137     m_noStrings ++;
 138 }
 139
 140 void wxComboBox::Delete(int n)
 141 {
 142     XmComboBoxDeletePos((Widget) m_mainWidget, n-1);
 143     wxNode *node = m_stringList.Nth(n);
 144     if (node)
 145     {
 146       delete[] (char *)node->Data();
 147       delete node;
 148     }
 149     m_noStrings--;
 150 }
 151
 152 void wxComboBox::Clear()
 153 {
 154     XmComboBoxDeleteAllItems((Widget) m_mainWidget);
 155     m_stringList.Clear();
 156 }
 157
 158 void wxComboBox::SetSelection (int n)
 159 {
 160     XmComboBoxSelectPos((Widget) m_mainWidget, n+1, False);
 161 }
 162
 163 int wxComboBox::GetSelection (void) const
 164 {
 165   int sel = XmComboBoxGetSelectedPos((Widget) m_mainWidget);
 166   if (sel == 0)
 167     return -1;
 168   else
 169     return sel - 1;
 170 }
 171
 172 wxString wxComboBox::GetString(int n) const
 173 {
 174     wxNode *node = m_stringList.Nth (n);
 175     if (node)
 176       return wxString((char *) node->Data ());
 177     else
 178       return wxEmptyString;
 179 }
 180
 181 wxString wxComboBox::GetStringSelection() const
 182 {
 183     int sel = GetSelection();
 184     if (sel == -1)
 185         return wxEmptyString;
 186     else
 187         return GetString(sel);
 188 }
 189
 190 bool wxComboBox::SetStringSelection(const wxString& sel)
 191 {
 192     int n = FindString(sel);
 193     if (n == -1)
 194         return FALSE;
 195     else
 196     {
 197         SetSelection(n);
 198         return TRUE;
 199     }
 200 }
 201
 202 int wxComboBox::FindString(const wxString& s) const
 203 {
 204   int *pos_list = NULL;
 205   int count = 0;
 206   XmString text = XmStringCreateSimple ((char*) (const char*) s);
 207   bool found = (XmComboBoxGetMatchPos((Widget) m_mainWidget,
 208    text, &pos_list, &count) != 0);
 209
 210   XmStringFree(text);
 211
 212   if (found && count > 0)
 213   {
 214     int pos = pos_list[0] - 1;
 215     free(pos_list);
 216     return pos;
 217   }
 218
 219   return -1;
 220 }
 221
 222 // Clipboard operations
 223 void wxComboBox::Copy()
 224 {
 225     XmComboBoxCopy((Widget) m_mainWidget, CurrentTime);
 226 }
 227
 228 void wxComboBox::Cut()
 229 {
 230     XmComboBoxCut((Widget) m_mainWidget, CurrentTime);
 231 }
 232
 233 void wxComboBox::Paste()
 234 {
 235     XmComboBoxPaste((Widget) m_mainWidget);
 236 }
 237
 238 void wxComboBox::SetEditable(bool WXUNUSED(editable))
 239 {
 240     // TODO
 241 }
 242
 243 void wxComboBox::SetInsertionPoint(long pos)
 244 {
 245     XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) pos);
 246 }
 247
 248 void wxComboBox::SetInsertionPointEnd()
 249 {
 250     XmTextPosition pos = XmComboBoxGetLastPosition ((Widget) m_mainWidget);
 251     XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) (pos + 1));
 252 }
 253
 254 long wxComboBox::GetInsertionPoint() const
 255 {
 256     return (long) XmComboBoxGetInsertionPosition ((Widget) m_mainWidget);
 257 }
 258
 259 long wxComboBox::GetLastPosition() const
 260 {
 261     return (long) XmComboBoxGetLastPosition ((Widget) m_mainWidget);
 262 }
 263
 264 void wxComboBox::Replace(long from, long to, const wxString& value)
 265 {
 266     XmComboBoxReplace ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
 267                  (char*) (const char*) value);
 268 }
 269
 270 void wxComboBox::Remove(long from, long to)
 271 {
 272     XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
 273                       (Time) 0);
 274     XmComboBoxRemove ((Widget) m_mainWidget);
 275 }
 276
 277 void wxComboBox::SetSelection(long from, long to)
 278 {
 279     XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
 280                       (Time) 0);
 281 }
 282
 283 void  wxComboBoxCallback (Widget WXUNUSED(w), XtPointer clientData,
 284                    XmComboBoxSelectionCallbackStruct * cbs)
 285 {
 286     wxComboBox *item = (wxComboBox *) clientData;
 287
 288     switch (cbs->reason)
 289     {
 290         case XmCR_SINGLE_SELECT:
 291         case XmCR_BROWSE_SELECT:
 292         {
 293             wxCommandEvent event (wxEVT_COMMAND_COMBOBOX_SELECTED, item->GetId());
 294                 event.m_commandInt = cbs->index - 1;
 295                 //              event.m_commandString = item->GetString (event.m_commandInt);
 296                 event.m_extraLong = TRUE;
 297                 event.SetEventObject(item);
 298                 item->ProcessCommand (event);
 299                 break;
 300         }
 301         case XmCR_VALUE_CHANGED:
 302         {
 303             wxCommandEvent event (wxEVT_COMMAND_TEXT_UPDATED, item->GetId());
 304                 event.m_commandInt = -1;
 305                 //              event.m_commandString = item->GetValue();
 306                 event.m_extraLong = TRUE;
 307                 event.SetEventObject(item);
 308                 item->ProcessCommand (event);
 309             break;
 310         }
 311         default:
 312             break;
 313     }
 314 }
 315
 316 void wxComboBox::ChangeFont(bool keepOriginalSize)
 317 {
 318     // Don't use the base class wxChoice's ChangeFont
 319     wxWindow::ChangeFont(keepOriginalSize);
 320 }
 321
 322 void wxComboBox::ChangeBackgroundColour()
 323 {
 324     wxWindow::ChangeBackgroundColour();
 325 }
 326
 327 void wxComboBox::ChangeForegroundColour()
 328 {
 329     wxWindow::ChangeBackgroundColour();
 330 }
 331
 332 #endif
 333