| 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 | int i; |
| 71 | for (i = 0; i < n; i++) |
| 72 | { |
| 73 | XmString str = XmStringCreateLtoR((char*) (const char*) choices[i], XmSTRING_DEFAULT_CHARSET); |
| 74 | XmComboBoxAddItem(buttonWidget, str, 0); |
| 75 | XmStringFree(str); |
| 76 | m_stringList.Add(choices[i]); |
| 77 | } |
| 78 | m_noStrings = n; |
| 79 | |
| 80 | m_mainWidget = (Widget) buttonWidget; |
| 81 | |
| 82 | XtManageChild (buttonWidget); |
| 83 | |
| 84 | SetValue(value); |
| 85 | |
| 86 | m_font = parent->GetFont(); |
| 87 | ChangeFont(FALSE); |
| 88 | |
| 89 | XtAddCallback (buttonWidget, XmNselectionCallback, (XtCallbackProc) wxComboBoxCallback, |
| 90 | (XtPointer) this); |
| 91 | XtAddCallback (buttonWidget, XmNvalueChangedCallback, (XtCallbackProc) wxComboBoxCallback, |
| 92 | (XtPointer) this); |
| 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 | node = m_clientList.Nth( n ); |
| 155 | if (node) |
| 156 | { |
| 157 | if ( HasClientObjectData() ) |
| 158 | { |
| 159 | delete (wxClientData *)node->Data(); |
| 160 | } |
| 161 | delete node; |
| 162 | } |
| 163 | |
| 164 | m_noStrings--; |
| 165 | } |
| 166 | |
| 167 | void wxComboBox::Clear() |
| 168 | { |
| 169 | XmComboBoxDeleteAllItems((Widget) m_mainWidget); |
| 170 | m_stringList.Clear(); |
| 171 | |
| 172 | if ( HasClientObjectData() ) |
| 173 | { |
| 174 | // destroy the data (due to Robert's idea of using wxList<wxObject> |
| 175 | // and not wxList<wxClientData> we can't just say |
| 176 | // m_clientList.DeleteContents(TRUE) - this would crash! |
| 177 | wxNode *node = m_clientList.First(); |
| 178 | while ( node ) |
| 179 | { |
| 180 | delete (wxClientData *)node->Data(); |
| 181 | node = node->Next(); |
| 182 | } |
| 183 | } |
| 184 | m_clientList.Clear(); |
| 185 | m_noStrings = 0; |
| 186 | } |
| 187 | |
| 188 | void wxComboBox::SetSelection (int n) |
| 189 | { |
| 190 | XmComboBoxSelectPos((Widget) m_mainWidget, n+1, False); |
| 191 | } |
| 192 | |
| 193 | int wxComboBox::GetSelection (void) const |
| 194 | { |
| 195 | int sel = XmComboBoxGetSelectedPos((Widget) m_mainWidget); |
| 196 | if (sel == 0) |
| 197 | return -1; |
| 198 | else |
| 199 | return sel - 1; |
| 200 | } |
| 201 | |
| 202 | wxString wxComboBox::GetString(int n) const |
| 203 | { |
| 204 | wxNode *node = m_stringList.Nth (n); |
| 205 | if (node) |
| 206 | return wxString((char *) node->Data ()); |
| 207 | else |
| 208 | return wxEmptyString; |
| 209 | } |
| 210 | |
| 211 | wxString wxComboBox::GetStringSelection() const |
| 212 | { |
| 213 | int sel = GetSelection(); |
| 214 | if (sel == -1) |
| 215 | return wxEmptyString; |
| 216 | else |
| 217 | return GetString(sel); |
| 218 | } |
| 219 | |
| 220 | bool wxComboBox::SetStringSelection(const wxString& sel) |
| 221 | { |
| 222 | int n = FindString(sel); |
| 223 | if (n == -1) |
| 224 | return FALSE; |
| 225 | else |
| 226 | { |
| 227 | SetSelection(n); |
| 228 | return TRUE; |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | int wxComboBox::FindString(const wxString& s) const |
| 233 | { |
| 234 | int *pos_list = NULL; |
| 235 | int count = 0; |
| 236 | XmString text = XmStringCreateSimple ((char*) (const char*) s); |
| 237 | bool found = (XmComboBoxGetMatchPos((Widget) m_mainWidget, |
| 238 | text, &pos_list, &count) != 0); |
| 239 | |
| 240 | XmStringFree(text); |
| 241 | |
| 242 | if (found && count > 0) |
| 243 | { |
| 244 | int pos = pos_list[0] - 1; |
| 245 | free(pos_list); |
| 246 | return pos; |
| 247 | } |
| 248 | |
| 249 | return -1; |
| 250 | } |
| 251 | |
| 252 | // Clipboard operations |
| 253 | void wxComboBox::Copy() |
| 254 | { |
| 255 | XmComboBoxCopy((Widget) m_mainWidget, CurrentTime); |
| 256 | } |
| 257 | |
| 258 | void wxComboBox::Cut() |
| 259 | { |
| 260 | XmComboBoxCut((Widget) m_mainWidget, CurrentTime); |
| 261 | } |
| 262 | |
| 263 | void wxComboBox::Paste() |
| 264 | { |
| 265 | XmComboBoxPaste((Widget) m_mainWidget); |
| 266 | } |
| 267 | |
| 268 | void wxComboBox::SetEditable(bool WXUNUSED(editable)) |
| 269 | { |
| 270 | // TODO |
| 271 | } |
| 272 | |
| 273 | void wxComboBox::SetInsertionPoint(long pos) |
| 274 | { |
| 275 | XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) pos); |
| 276 | } |
| 277 | |
| 278 | void wxComboBox::SetInsertionPointEnd() |
| 279 | { |
| 280 | XmTextPosition pos = XmComboBoxGetLastPosition ((Widget) m_mainWidget); |
| 281 | XmComboBoxSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) (pos + 1)); |
| 282 | } |
| 283 | |
| 284 | long wxComboBox::GetInsertionPoint() const |
| 285 | { |
| 286 | return (long) XmComboBoxGetInsertionPosition ((Widget) m_mainWidget); |
| 287 | } |
| 288 | |
| 289 | long wxComboBox::GetLastPosition() const |
| 290 | { |
| 291 | return (long) XmComboBoxGetLastPosition ((Widget) m_mainWidget); |
| 292 | } |
| 293 | |
| 294 | void wxComboBox::Replace(long from, long to, const wxString& value) |
| 295 | { |
| 296 | XmComboBoxReplace ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to, |
| 297 | (char*) (const char*) value); |
| 298 | } |
| 299 | |
| 300 | void wxComboBox::Remove(long from, long to) |
| 301 | { |
| 302 | XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to, |
| 303 | (Time) 0); |
| 304 | XmComboBoxRemove ((Widget) m_mainWidget); |
| 305 | } |
| 306 | |
| 307 | void wxComboBox::SetSelection(long from, long to) |
| 308 | { |
| 309 | XmComboBoxSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to, |
| 310 | (Time) 0); |
| 311 | } |
| 312 | |
| 313 | void wxComboBoxCallback (Widget WXUNUSED(w), XtPointer clientData, |
| 314 | XmComboBoxSelectionCallbackStruct * cbs) |
| 315 | { |
| 316 | wxComboBox *item = (wxComboBox *) clientData; |
| 317 | |
| 318 | switch (cbs->reason) |
| 319 | { |
| 320 | case XmCR_SINGLE_SELECT: |
| 321 | case XmCR_BROWSE_SELECT: |
| 322 | { |
| 323 | wxCommandEvent event (wxEVT_COMMAND_COMBOBOX_SELECTED, item->GetId()); |
| 324 | event.m_commandInt = cbs->index - 1; |
| 325 | // event.m_commandString = item->GetString (event.m_commandInt); |
| 326 | event.m_extraLong = 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.m_commandInt = -1; |
| 335 | // event.m_commandString = item->GetValue(); |
| 336 | event.m_extraLong = 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::ChangeBackgroundColour(); |
| 360 | } |
| 361 | |
| 362 | #endif |
| 363 | |