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