src/motif/combobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/motif/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 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #if wxUSE_COMBOBOX
  16
  17 #include "wx/combobox.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/arrstr.h"
  21 #endif
  22
  23 #ifdef __VMS__
  24 #pragma message disable nosimpint
  25 #endif
  26 #include <Xm/Xm.h>
  27 #ifdef __VMS__
  28 #pragma message enable nosimpint
  29 #endif
  30
  31 // use the old, GPL'd combobox
  32 #if (XmVersion < 2000)
  33
  34 #include "xmcombo/xmcombo.h"
  35
  36 #include "wx/motif/private.h"
  37
  38 void  wxComboBoxCallback (Widget w, XtPointer clientData,
  39                           XmComboBoxSelectionCallbackStruct * cbs);
  40
  41 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
  42
  43 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
  44                         const wxString& value,
  45                         const wxPoint& pos,
  46                         const wxSize& size,
  47                         int n, const wxString choices[],
  48                         long style,
  49                         const wxValidator& validator,
  50                         const wxString& name)
  51 {
  52     if( !CreateControl( parent, id, pos, size, style, validator, name ) )
  53         return false;
  54     PreCreation();
  55
  56     m_noStrings = n;
  57
  58     Widget parentWidget = (Widget) parent->GetClientWidget();
  59
  60     Widget buttonWidget = XtVaCreateManagedWidget(name.c_str(),
  61         xmComboBoxWidgetClass, parentWidget,
  62         XmNmarginHeight, 0,
  63         XmNmarginWidth, 0,
  64         XmNshowLabel, False,
  65         XmNeditable, ((style & wxCB_READONLY) != wxCB_READONLY),
  66         XmNsorted, ((style & wxCB_SORT) == wxCB_SORT),
  67         XmNstaticList, ((style & wxCB_SIMPLE) == wxCB_SIMPLE),
  68         NULL);
  69
  70     int i;
  71     for (i = 0; i < n; i++)
  72     {
  73         wxXmString str( choices[i] );
  74         XmComboBoxAddItem(buttonWidget, str(), 0);
  75         m_stringList.Add(choices[i]);
  76     }
  77
  78     m_mainWidget = (Widget) buttonWidget;
  79
  80     XtManageChild (buttonWidget);
  81
  82     SetValue(value);
  83
  84     XtAddCallback (buttonWidget, XmNselectionCallback, (XtCallbackProc) wxComboBoxCallback,
  85         (XtPointer) this);
  86     XtAddCallback (buttonWidget, XmNvalueChangedCallback, (XtCallbackProc) wxComboBoxCallback,
  87         (XtPointer) this);
  88
  89     PostCreation();
  90     AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y);
  91
  92     return true;
  93 }
  94
  95 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
  96                         const wxString& value,
  97                         const wxPoint& pos,
  98                         const wxSize& size,
  99                         const wxArrayString& choices,
 100                         long style,
 101                         const wxValidator& validator,
 102                         const wxString& name)
 103 {
 104     wxCArrayString chs(choices);
 105     return Create(parent, id, value, pos, size, chs.GetCount(),
 106                   chs.GetStrings(), style, validator, name);
 107 }
 108
 109 wxComboBox::~wxComboBox()
 110 {
 111     DetachWidget((Widget) m_mainWidget); // Removes event handlers
 112     XtDestroyWidget((Widget) m_mainWidget);
 113     m_mainWidget = (WXWidget) 0;
 114     if ( HasClientObjectData() )
 115         m_clientDataDict.DestroyData();
 116 }
 117
 118 void wxComboBox::DoSetSize(int x, int y,
 119                            int width, int WXUNUSED(height),
 120                            int sizeFlags)
 121 {
 122     // Necessary so it doesn't call wxChoice::SetSize
 123     wxWindow::DoSetSize(x, y, width, DoGetBestSize().y, sizeFlags);
 124 }
 125
 126 wxString wxComboBox::GetValue() const
 127 {
 128     char *s = XmComboBoxGetString ((Widget) m_mainWidget);
 129     if (s)
 130     {
 131         wxString str(s);
 132         XtFree (s);
 133         return str;
 134     }
 135     else
 136         return wxEmptyString;
 137 }
 138
 139 void wxComboBox::SetValue(const wxString& value)
 140 {
 141     m_inSetValue = true;
 142     if( !value.empty() )
 143         XmComboBoxSetString( (Widget)m_mainWidget,
 144                              wxConstCast(value.c_str(), char) );
 145     m_inSetValue = false;
 146 }
 147
 148 void wxComboBox::SetString(unsigned int WXUNUSED(n), const wxString& WXUNUSED(s))
 149 {
 150     wxFAIL_MSG( wxT("wxComboBox::SetString only implemented for Motif 2.0") );
 151 }
 152
 153 int wxComboBox::DoAppend(const wxString& item)
 154 {
 155     wxXmString str( item.c_str() );
 156     XmComboBoxAddItem((Widget) m_mainWidget, str(), 0);
 157     m_stringList.Add(item);
 158     m_noStrings ++;
 159
 160     return GetCount() - 1;
 161 }
 162
 163 int wxComboBox::DoInsert(const wxString& item, unsigned int pos)
 164 {
 165     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 166     wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index"));
 167
 168     if (pos == GetCount())
 169         return DoAppend(item);
 170
 171     wxXmString str( item.c_str() );
 172     XmComboBoxAddItem((Widget) m_mainWidget, str(), pos+1);
 173     wxChar* copy = wxStrcpy(new wxChar[item.length() + 1], item.c_str());
 174     m_stringList.Insert(pos, copy);
 175     m_noStrings ++;
 176
 177     return pos;
 178 }
 179
 180 void wxComboBox::Delete(unsigned int n)
 181 {
 182     XmComboBoxDeletePos((Widget) m_mainWidget, n+1);
 183     wxStringList::Node *node = m_stringList.Item(n);
 184     if (node)
 185     {
 186         delete[] node->GetData();
 187         delete node;
 188     }
 189     m_clientDataDict.Delete(n, HasClientObjectData());
 190     m_noStrings--;
 191 }
 192
 193 void wxComboBox::Clear()
 194 {
 195     XmComboBoxDeleteAllItems((Widget) m_mainWidget);
 196     m_stringList.Clear();
 197
 198     if ( HasClientObjectData() )
 199         m_clientDataDict.DestroyData();
 200     m_noStrings = 0;
 201 }
 202
 203 void wxComboBox::SetSelection (int n)
 204 {
 205     XmComboBoxSelectPos((Widget) m_mainWidget, n+1, False);
 206 }
 207
 208 int wxComboBox::GetSelection (void) const
 209 {
 210     int sel = XmComboBoxGetSelectedPos((Widget) m_mainWidget);
 211     if (sel == 0)
 212         return -1;
 213     else
 214         return sel - 1;
 215 }
 216
 217 wxString wxComboBox::GetString(unsigned int n) const
 218 {
 219     wxStringList::Node *node = m_stringList.Item(n);
 220     if (node)
 221         return wxString(node->GetData ());
 222     else
 223         return wxEmptyString;
 224 }
 225
 226 int wxComboBox::FindString(const wxString& s, bool WXUNUSED(bCase)) const
 227 {
 228     // FIXME: back to base class for not supported value of bCase
 229
 230     int *pos_list = NULL;
 231     int count = 0;
 232     wxXmString text( s );
 233     bool found = (XmComboBoxGetMatchPos((Widget) m_mainWidget,
 234         text(), &pos_list, &count) != 0);
 235
 236     if (found && count > 0)
 237     {
 238         int pos = pos_list[0] - 1;
 239         free(pos_list);
 240         return pos;
 241     }
 242
 243     return wxNOT_FOUND;
 244 }
 245
 246 // Clipboard operations
 247 void wxComboBox::Copy()
 248 {
 249     XmComboBoxCopy((Widget) m_mainWidget, CurrentTime);
 250 }
 251
 252 void wxComboBox::Cut()
 253 {
 254     XmComboBoxCut((Widget) m_mainWidget, CurrentTime);
 255 }
 256
 257 void wxComboBox::Paste()
 258 {
 259     XmComboBoxPaste((Widget) m_mainWidget);
 260 }
 261
 262 void wxComboBox::SetEditable(bool WXUNUSED(editable))
 263 {
 264     // TODO
 265 }
 266
 267 void wxComboBox::SetInsertionPoint(long pos)
 268 {
 269     XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) pos);
 270 }
 271
 272 void wxComboBox::SetInsertionPointEnd()
 273 {
 274     XmTextPosition pos = XmComboBoxGetLastPosition ((Widget) m_mainWidget);
 275     XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) (pos + 1));
 276 }
 277
 278 long wxComboBox::GetInsertionPoint() const
 279 {
 280     return (long) XmComboBoxGetInsertionPosition ((Widget) m_mainWidget);
 281 }
 282
 283 wxTextPos wxComboBox::GetLastPosition() const
 284 {
 285     return (wxTextPos) XmComboBoxGetLastPosition ((Widget) m_mainWidget);
 286 }
 287
 288 void wxComboBox::Replace(long from, long to, const wxString& value)
 289 {
 290     XmComboBoxReplace ((Widget) m_mainWidget, (XmTextPosition) from,
 291                        (XmTextPosition) to,
 292                        wxConstCast(value.c_str(), char));
 293 }
 294
 295 void wxComboBox::Remove(long from, long to)
 296 {
 297     XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
 298                       (Time) 0);
 299     XmComboBoxRemove ((Widget) m_mainWidget);
 300 }
 301
 302 void wxComboBox::SetSelection(long from, long to)
 303 {
 304     XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
 305                       (Time) 0);
 306 }
 307
 308 void  wxComboBoxCallback (Widget WXUNUSED(w), XtPointer clientData,
 309                           XmComboBoxSelectionCallbackStruct * cbs)
 310 {
 311     wxComboBox *item = (wxComboBox *) clientData;
 312
 313     switch (cbs->reason)
 314     {
 315     case XmCR_SINGLE_SELECT:
 316     case XmCR_BROWSE_SELECT:
 317         {
 318             wxCommandEvent event (wxEVT_COMMAND_COMBOBOX_SELECTED,
 319                                   item->GetId());
 320             event.SetInt(cbs->index - 1);
 321             event.SetString( item->GetString ( event.GetInt() ) );
 322             if ( item->HasClientObjectData() )
 323                 event.SetClientObject( item->GetClientObject(cbs->index - 1) );
 324             else if ( item->HasClientUntypedData() )
 325                 event.SetClientData( item->GetClientData(cbs->index - 1) );
 326             event.SetExtraLong(true);
 327             event.SetEventObject(item);
 328             item->ProcessCommand (event);
 329             break;
 330         }
 331     case XmCR_VALUE_CHANGED:
 332         {
 333             wxCommandEvent event (wxEVT_COMMAND_TEXT_UPDATED, item->GetId());
 334             event.SetInt(-1);
 335             event.SetString( item->GetValue() );
 336             event.SetExtraLong(true);
 337             event.SetEventObject(item);
 338             item->ProcessCommand (event);
 339             break;
 340         }
 341     default:
 342         break;
 343     }
 344 }
 345
 346 void wxComboBox::ChangeFont(bool keepOriginalSize)
 347 {
 348     // Don't use the base class wxChoice's ChangeFont
 349     wxWindow::ChangeFont(keepOriginalSize);
 350 }
 351
 352 void wxComboBox::ChangeBackgroundColour()
 353 {
 354     wxWindow::ChangeBackgroundColour();
 355 }
 356
 357 void wxComboBox::ChangeForegroundColour()
 358 {
 359     wxWindow::ChangeForegroundColour();
 360 }
 361
 362 wxSize wxComboBox::DoGetBestSize() const
 363 {
 364     if( (GetWindowStyle() & wxCB_DROPDOWN) == wxCB_DROPDOWN ||
 365         (GetWindowStyle() & wxCB_READONLY) == wxCB_READONLY )
 366     {
 367         wxSize items = GetItemsSize();
 368         // FIXME arbitrary constants
 369         return wxSize( ( items.x ? items.x + 50 : 120 ),
 370                          items.y + 10 );
 371     }
 372     else
 373         return wxWindow::DoGetBestSize();
 374 }
 375
 376 #endif // XmVersion < 2000
 377
 378 #endif // wxUSE_COMBOBOX