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 #ifdef __VMS__
  21 #pragma message disable nosimpint
  22 #endif
  23 #include <Xm/Xm.h>
  24 #ifdef __VMS__
  25 #pragma message enable nosimpint
  26 #endif
  27 #include "xmcombo/xmcombo.h"
  28
  29 void  wxComboBoxCallback (Widget w, XtPointer clientData,
  30                           XmComboBoxSelectionCallbackStruct * cbs);
  31
  32 #if !USE_SHARED_LIBRARY
  33 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
  34 #endif
  35
  36 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
  37                         const wxString& value,
  38                         const wxPoint& pos,
  39                         const wxSize& size,
  40                         int n, const wxString choices[],
  41                         long style,
  42                         const wxValidator& validator,
  43                         const wxString& name)
  44 {
  45     SetName(name);
  46     SetValidator(validator);
  47     m_noStrings = n;
  48     m_windowStyle = style;
  49     //    m_backgroundColour = parent->GetBackgroundColour();
  50     m_backgroundColour = * wxWHITE;
  51     m_foregroundColour = parent->GetForegroundColour();
  52
  53     if (parent) parent->AddChild(this);
  54
  55     if ( id == -1 )
  56         m_windowId = (int)NewControlId();
  57     else
  58         m_windowId = id;
  59
  60     Widget parentWidget = (Widget) parent->GetClientWidget();
  61
  62     Widget buttonWidget = XtVaCreateManagedWidget(name.c_str(),
  63         xmComboBoxWidgetClass, parentWidget,
  64         XmNmarginHeight, 0,
  65         XmNmarginWidth, 0,
  66         XmNshowLabel, False,
  67         XmNeditable, ((style & wxCB_READONLY) != wxCB_READONLY),
  68         XmNsorted, ((style & wxCB_SORT) == wxCB_SORT),
  69         XmNstaticList, ((style & wxCB_SIMPLE) == wxCB_SIMPLE),
  70         NULL);
  71
  72     XtAddCallback (buttonWidget, XmNselectionCallback, (XtCallbackProc) wxComboBoxCallback,
  73         (XtPointer) this);
  74     XtAddCallback (buttonWidget, XmNvalueChangedCallback, (XtCallbackProc) wxComboBoxCallback,
  75         (XtPointer) this);
  76
  77     int i;
  78     for (i = 0; i < n; i++)
  79     {
  80         XmString str = XmStringCreateLtoR((char*) (const char*) choices[i], XmSTRING_DEFAULT_CHARSET);
  81         XmComboBoxAddItem(buttonWidget, str, 0);
  82         XmStringFree(str);
  83         m_stringList.Add(choices[i]);
  84     }
  85     m_noStrings = n;
  86
  87     m_mainWidget = (Widget) buttonWidget;
  88
  89     XtManageChild (buttonWidget);
  90
  91     SetValue(value);
  92
  93     m_font = parent->GetFont();
  94     ChangeFont(FALSE);
  95
  96     SetCanAddEventHandler(TRUE);
  97     AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y);
  98
  99     ChangeBackgroundColour();
 100
 101     return TRUE;
 102 }
 103
 104 wxComboBox::~wxComboBox()
 105 {
 106     DetachWidget((Widget) m_mainWidget); // Removes event handlers
 107     XtDestroyWidget((Widget) m_mainWidget);
 108     m_mainWidget = (WXWidget) 0;
 109 }
 110
 111 void wxComboBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 112 {
 113     // Necessary so it doesn't call wxChoice::SetSize
 114     wxWindow::DoSetSize(x, y, width, height, sizeFlags);
 115 }
 116
 117 wxString wxComboBox::GetValue() const
 118 {
 119     char *s = XmComboBoxGetString ((Widget) m_mainWidget);
 120     if (s)
 121     {
 122         wxString str(s);
 123         XtFree (s);
 124         return str;
 125     }
 126     else
 127         return wxEmptyString;
 128 }
 129
 130 void wxComboBox::SetValue(const wxString& value)
 131 {
 132     m_inSetValue = TRUE;
 133     if (!value.IsNull())
 134         XmComboBoxSetString ((Widget) m_mainWidget, (char*) (const char*) value);
 135     m_inSetValue = FALSE;
 136 }
 137
 138 void wxComboBox::Append(const wxString& item)
 139 {
 140     XmString str = XmStringCreateLtoR((char*) (const char*) item, XmSTRING_DEFAULT_CHARSET);
 141     XmComboBoxAddItem((Widget) m_mainWidget, str, 0);
 142     m_stringList.Add(item);
 143     XmStringFree(str);
 144     m_noStrings ++;
 145 }
 146
 147 void wxComboBox::Delete(int n)
 148 {
 149     XmComboBoxDeletePos((Widget) m_mainWidget, n-1);
 150     wxNode *node = m_stringList.Nth(n);
 151     if (node)
 152     {
 153         delete[] (char *)node->Data();
 154         delete node;
 155     }
 156     m_noStrings--;
 157 }
 158
 159 void wxComboBox::Clear()
 160 {
 161     XmComboBoxDeleteAllItems((Widget) m_mainWidget);
 162     m_stringList.Clear();
 163 }
 164
 165 void wxComboBox::SetSelection (int n)
 166 {
 167     XmComboBoxSelectPos((Widget) m_mainWidget, n+1, False);
 168 }
 169
 170 int wxComboBox::GetSelection (void) const
 171 {
 172     int sel = XmComboBoxGetSelectedPos((Widget) m_mainWidget);
 173     if (sel == 0)
 174         return -1;
 175     else
 176         return sel - 1;
 177 }
 178
 179 wxString wxComboBox::GetString(int n) const
 180 {
 181     wxNode *node = m_stringList.Nth (n);
 182     if (node)
 183         return wxString((char *) node->Data ());
 184     else
 185         return wxEmptyString;
 186 }
 187
 188 wxString wxComboBox::GetStringSelection() const
 189 {
 190     int sel = GetSelection();
 191     if (sel == -1)
 192         return wxEmptyString;
 193     else
 194         return GetString(sel);
 195 }
 196
 197 bool wxComboBox::SetStringSelection(const wxString& sel)
 198 {
 199     int n = FindString(sel);
 200     if (n == -1)
 201         return FALSE;
 202     else
 203     {
 204         SetSelection(n);
 205         return TRUE;
 206     }
 207 }
 208
 209 int wxComboBox::FindString(const wxString& s) const
 210 {
 211     int *pos_list = NULL;
 212     int count = 0;
 213     XmString text = XmStringCreateSimple ((char*) (const char*) s);
 214     bool found = (XmComboBoxGetMatchPos((Widget) m_mainWidget,
 215         text, &pos_list, &count) != 0);
 216
 217     XmStringFree(text);
 218
 219     if (found && count > 0)
 220     {
 221         int pos = pos_list[0] - 1;
 222         free(pos_list);
 223         return pos;
 224     }
 225
 226     return -1;
 227 }
 228
 229 // Clipboard operations
 230 void wxComboBox::Copy()
 231 {
 232     XmComboBoxCopy((Widget) m_mainWidget, CurrentTime);
 233 }
 234
 235 void wxComboBox::Cut()
 236 {
 237     XmComboBoxCut((Widget) m_mainWidget, CurrentTime);
 238 }
 239
 240 void wxComboBox::Paste()
 241 {
 242     XmComboBoxPaste((Widget) m_mainWidget);
 243 }
 244
 245 void wxComboBox::SetEditable(bool WXUNUSED(editable))
 246 {
 247     // TODO
 248 }
 249
 250 void wxComboBox::SetInsertionPoint(long pos)
 251 {
 252     XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) pos);
 253 }
 254
 255 void wxComboBox::SetInsertionPointEnd()
 256 {
 257     XmTextPosition pos = XmComboBoxGetLastPosition ((Widget) m_mainWidget);
 258     XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) (pos + 1));
 259 }
 260
 261 long wxComboBox::GetInsertionPoint() const
 262 {
 263     return (long) XmComboBoxGetInsertionPosition ((Widget) m_mainWidget);
 264 }
 265
 266 long wxComboBox::GetLastPosition() const
 267 {
 268     return (long) XmComboBoxGetLastPosition ((Widget) m_mainWidget);
 269 }
 270
 271 void wxComboBox::Replace(long from, long to, const wxString& value)
 272 {
 273     XmComboBoxReplace ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
 274         (char*) (const char*) value);
 275 }
 276
 277 void wxComboBox::Remove(long from, long to)
 278 {
 279     XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
 280                       (Time) 0);
 281     XmComboBoxRemove ((Widget) m_mainWidget);
 282 }
 283
 284 void wxComboBox::SetSelection(long from, long to)
 285 {
 286     XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
 287                       (Time) 0);
 288 }
 289
 290 void  wxComboBoxCallback (Widget WXUNUSED(w), XtPointer clientData,
 291                           XmComboBoxSelectionCallbackStruct * cbs)
 292 {
 293     wxComboBox *item = (wxComboBox *) clientData;
 294
 295     switch (cbs->reason)
 296     {
 297     case XmCR_SINGLE_SELECT:
 298     case XmCR_BROWSE_SELECT:
 299         {
 300             wxCommandEvent event (wxEVT_COMMAND_COMBOBOX_SELECTED, item->GetId());
 301             event.m_commandInt = cbs->index - 1;
 302             //                event.m_commandString = item->GetString (event.m_commandInt);
 303             event.m_extraLong = TRUE;
 304             event.SetEventObject(item);
 305             item->ProcessCommand (event);
 306             break;
 307         }
 308     case XmCR_VALUE_CHANGED:
 309         {
 310             wxCommandEvent event (wxEVT_COMMAND_TEXT_UPDATED, item->GetId());
 311             event.m_commandInt = -1;
 312             //                event.m_commandString = item->GetValue();
 313             event.m_extraLong = TRUE;
 314             event.SetEventObject(item);
 315             item->ProcessCommand (event);
 316             break;
 317         }
 318     default:
 319         break;
 320     }
 321 }
 322
 323 void wxComboBox::ChangeFont(bool keepOriginalSize)
 324 {
 325     // Don't use the base class wxChoice's ChangeFont
 326     wxWindow::ChangeFont(keepOriginalSize);
 327 }
 328
 329 void wxComboBox::ChangeBackgroundColour()
 330 {
 331     wxWindow::ChangeBackgroundColour();
 332 }
 333
 334 void wxComboBox::ChangeForegroundColour()
 335 {
 336     wxWindow::ChangeBackgroundColour();
 337 }
 338
 339 #endif
 340