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