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     if( !value.empty() )
 142     {
 143         m_inSetValue = true;
 144         XmComboBoxSetString((Widget)m_mainWidget, value.char_str());
 145         m_inSetValue = false;
 146     }
 147 }
 148
 149 void wxComboBox::SetString(unsigned int WXUNUSED(n), const wxString& WXUNUSED(s))
 150 {
 151     wxFAIL_MSG( wxT("wxComboBox::SetString only implemented for Motif 2.0") );
 152 }
 153
 154 int wxComboBox::DoAppend(const wxString& item)
 155 {
 156     wxXmString str( item.c_str() );
 157     XmComboBoxAddItem((Widget) m_mainWidget, str(), 0);
 158     m_stringList.Add(item);
 159     m_noStrings ++;
 160
 161     return GetCount() - 1;
 162 }
 163
 164 int wxComboBox::DoInsert(const wxString& item, unsigned int pos)
 165 {
 166     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 167     wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index"));
 168
 169     if (pos == GetCount())
 170         return DoAppend(item);
 171
 172     wxXmString str( item.c_str() );
 173     XmComboBoxAddItem((Widget) m_mainWidget, str(), pos+1);
 174     wxChar* copy = wxStrcpy(new wxChar[item.length() + 1], item.c_str());
 175     m_stringList.Insert(pos, copy);
 176     m_noStrings ++;
 177
 178     return pos;
 179 }
 180
 181 void wxComboBox::Delete(unsigned int n)
 182 {
 183     XmComboBoxDeletePos((Widget) m_mainWidget, n+1);
 184     wxStringList::Node *node = m_stringList.Item(n);
 185     if (node)
 186     {
 187         delete[] node->GetData();
 188         delete node;
 189     }
 190     m_clientDataDict.Delete(n, HasClientObjectData());
 191     m_noStrings--;
 192 }
 193
 194 void wxComboBox::Clear()
 195 {
 196     XmComboBoxDeleteAllItems((Widget) m_mainWidget);
 197     m_stringList.Clear();
 198
 199     if ( HasClientObjectData() )
 200         m_clientDataDict.DestroyData();
 201     m_noStrings = 0;
 202 }
 203
 204 void wxComboBox::SetSelection (int n)
 205 {
 206     XmComboBoxSelectPos((Widget) m_mainWidget, n+1, False);
 207 }
 208
 209 int wxComboBox::GetSelection (void) const
 210 {
 211     int sel = XmComboBoxGetSelectedPos((Widget) m_mainWidget);
 212     if (sel == 0)
 213         return -1;
 214     else
 215         return sel - 1;
 216 }
 217
 218 wxString wxComboBox::GetString(unsigned int n) const
 219 {
 220     wxStringList::Node *node = m_stringList.Item(n);
 221     if (node)
 222         return wxString(node->GetData ());
 223     else
 224         return wxEmptyString;
 225 }
 226
 227 int wxComboBox::FindString(const wxString& s, bool WXUNUSED(bCase)) const
 228 {
 229     // FIXME: back to base class for not supported value of bCase
 230
 231     int *pos_list = NULL;
 232     int count = 0;
 233     wxXmString text( s );
 234     bool found = (XmComboBoxGetMatchPos((Widget) m_mainWidget,
 235         text(), &pos_list, &count) != 0);
 236
 237     if (found && count > 0)
 238     {
 239         int pos = pos_list[0] - 1;
 240         free(pos_list);
 241         return pos;
 242     }
 243
 244     return wxNOT_FOUND;
 245 }
 246
 247 // Clipboard operations
 248 void wxComboBox::Copy()
 249 {
 250     XmComboBoxCopy((Widget) m_mainWidget, CurrentTime);
 251 }
 252
 253 void wxComboBox::Cut()
 254 {
 255     XmComboBoxCut((Widget) m_mainWidget, CurrentTime);
 256 }
 257
 258 void wxComboBox::Paste()
 259 {
 260     XmComboBoxPaste((Widget) m_mainWidget);
 261 }
 262
 263 void wxComboBox::SetEditable(bool WXUNUSED(editable))
 264 {
 265     // TODO
 266 }
 267
 268 void wxComboBox::SetInsertionPoint(long pos)
 269 {
 270     XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) pos);
 271 }
 272
 273 void wxComboBox::SetInsertionPointEnd()
 274 {
 275     XmTextPosition pos = XmComboBoxGetLastPosition ((Widget) m_mainWidget);
 276     XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) (pos + 1));
 277 }
 278
 279 long wxComboBox::GetInsertionPoint() const
 280 {
 281     return (long) XmComboBoxGetInsertionPosition ((Widget) m_mainWidget);
 282 }
 283
 284 wxTextPos wxComboBox::GetLastPosition() const
 285 {
 286     return (wxTextPos) XmComboBoxGetLastPosition ((Widget) m_mainWidget);
 287 }
 288
 289 void wxComboBox::Replace(long from, long to, const wxString& value)
 290 {
 291     XmComboBoxReplace ((Widget) m_mainWidget, (XmTextPosition) from,
 292                        (XmTextPosition) to,
 293                        value.char_str());
 294 }
 295
 296 void wxComboBox::Remove(long from, long to)
 297 {
 298     XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
 299                       (Time) 0);
 300     XmComboBoxRemove ((Widget) m_mainWidget);
 301 }
 302
 303 void wxComboBox::SetSelection(long from, long to)
 304 {
 305     XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
 306                       (Time) 0);
 307 }
 308
 309 void  wxComboBoxCallback (Widget WXUNUSED(w), XtPointer clientData,
 310                           XmComboBoxSelectionCallbackStruct * cbs)
 311 {
 312     wxComboBox *item = (wxComboBox *) clientData;
 313
 314     switch (cbs->reason)
 315     {
 316     case XmCR_SINGLE_SELECT:
 317     case XmCR_BROWSE_SELECT:
 318         {
 319             wxCommandEvent event (wxEVT_COMMAND_COMBOBOX_SELECTED,
 320                                   item->GetId());
 321             event.SetInt(cbs->index - 1);
 322             event.SetString( item->GetString ( event.GetInt() ) );
 323             if ( item->HasClientObjectData() )
 324                 event.SetClientObject( item->GetClientObject(cbs->index - 1) );
 325             else if ( item->HasClientUntypedData() )
 326                 event.SetClientData( item->GetClientData(cbs->index - 1) );
 327             event.SetExtraLong(true);
 328             event.SetEventObject(item);
 329             item->ProcessCommand (event);
 330             break;
 331         }
 332     case XmCR_VALUE_CHANGED:
 333         {
 334             wxCommandEvent event (wxEVT_COMMAND_TEXT_UPDATED, item->GetId());
 335             event.SetInt(-1);
 336             event.SetString( item->GetValue() );
 337             event.SetExtraLong(true);
 338             event.SetEventObject(item);
 339             item->ProcessCommand (event);
 340             break;
 341         }
 342     default:
 343         break;
 344     }
 345 }
 346
 347 void wxComboBox::ChangeFont(bool keepOriginalSize)
 348 {
 349     // Don't use the base class wxChoice's ChangeFont
 350     wxWindow::ChangeFont(keepOriginalSize);
 351 }
 352
 353 void wxComboBox::ChangeBackgroundColour()
 354 {
 355     wxWindow::ChangeBackgroundColour();
 356 }
 357
 358 void wxComboBox::ChangeForegroundColour()
 359 {
 360     wxWindow::ChangeForegroundColour();
 361 }
 362
 363 wxSize wxComboBox::DoGetBestSize() const
 364 {
 365     if( (GetWindowStyle() & wxCB_DROPDOWN) == wxCB_DROPDOWN ||
 366         (GetWindowStyle() & wxCB_READONLY) == wxCB_READONLY )
 367     {
 368         wxSize items = GetItemsSize();
 369         // FIXME arbitrary constants
 370         return wxSize( ( items.x ? items.x + 50 : 120 ),
 371                          items.y + 10 );
 372     }
 373     else
 374         return wxWindow::DoGetBestSize();
 375 }
 376
 377 #endif // XmVersion < 2000
 378
 379 #endif // wxUSE_COMBOBOX