| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: listbox.cpp |
| 3 | // Purpose: wxListBox |
| 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 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 13 | #pragma implementation "listbox.h" |
| 14 | #endif |
| 15 | |
| 16 | #ifdef __VMS |
| 17 | #define XtParent XTPARENT |
| 18 | #define XtDisplay XTDISPLAY |
| 19 | #endif |
| 20 | |
| 21 | # include "wx/listbox.h" |
| 22 | #include "wx/settings.h" |
| 23 | #include "wx/dynarray.h" |
| 24 | #include "wx/log.h" |
| 25 | #include "wx/utils.h" |
| 26 | |
| 27 | #ifdef __VMS__ |
| 28 | #pragma message disable nosimpint |
| 29 | #endif |
| 30 | #include <Xm/List.h> |
| 31 | #ifdef __VMS__ |
| 32 | #pragma message enable nosimpint |
| 33 | #endif |
| 34 | #include "wx/motif/private.h" |
| 35 | |
| 36 | IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl) |
| 37 | |
| 38 | static void wxListBoxCallback(Widget w, |
| 39 | XtPointer clientData, |
| 40 | XmListCallbackStruct * cbs); |
| 41 | |
| 42 | // ---------------------------------------------------------------------------- |
| 43 | // wxSizeKeeper |
| 44 | // ---------------------------------------------------------------------------- |
| 45 | |
| 46 | // helper class to reduce code duplication |
| 47 | class wxSizeKeeper |
| 48 | { |
| 49 | int m_x, m_y; |
| 50 | wxWindow* m_w; |
| 51 | public: |
| 52 | wxSizeKeeper( wxWindow* w ) |
| 53 | : m_w( w ) |
| 54 | { |
| 55 | m_w->GetSize( &m_x, &m_y ); |
| 56 | } |
| 57 | |
| 58 | void Restore() |
| 59 | { |
| 60 | int x, y; |
| 61 | |
| 62 | m_w->GetSize( &x, &y ); |
| 63 | if( x != m_x || y != m_y ) |
| 64 | m_w->SetSize( -1, -1, m_x, m_y ); |
| 65 | } |
| 66 | }; |
| 67 | |
| 68 | // ============================================================================ |
| 69 | // list box control implementation |
| 70 | // ============================================================================ |
| 71 | |
| 72 | // Listbox item |
| 73 | wxListBox::wxListBox() |
| 74 | { |
| 75 | m_noItems = 0; |
| 76 | } |
| 77 | |
| 78 | bool wxListBox::Create(wxWindow *parent, wxWindowID id, |
| 79 | const wxPoint& pos, |
| 80 | const wxSize& size, |
| 81 | int n, const wxString choices[], |
| 82 | long style, |
| 83 | const wxValidator& validator, |
| 84 | const wxString& name) |
| 85 | { |
| 86 | if( !wxControl::CreateControl( parent, id, pos, size, style, |
| 87 | validator, name ) ) |
| 88 | return FALSE; |
| 89 | |
| 90 | m_noItems = n; |
| 91 | m_backgroundColour = * wxWHITE; |
| 92 | |
| 93 | Widget parentWidget = (Widget) parent->GetClientWidget(); |
| 94 | |
| 95 | WXFontType fontType = (WXFontType)NULL; |
| 96 | |
| 97 | if( m_font.Ok() ) |
| 98 | { |
| 99 | fontType = m_font.GetFontType(XtDisplay(parentWidget)); |
| 100 | } |
| 101 | |
| 102 | Arg args[4]; |
| 103 | int count = 0; |
| 104 | XtSetArg( args[count], XmNlistSizePolicy, XmCONSTANT ); ++count; |
| 105 | XtSetArg( args[count], XmNselectionPolicy, |
| 106 | ( m_windowStyle & wxLB_MULTIPLE ) ? XmMULTIPLE_SELECT : |
| 107 | ( m_windowStyle & wxLB_EXTENDED ) ? XmEXTENDED_SELECT : |
| 108 | XmBROWSE_SELECT ); |
| 109 | ++count; |
| 110 | if( fontType ) |
| 111 | { |
| 112 | XtSetArg( args[count], (String)wxFont::GetFontTag(), fontType ); |
| 113 | ++count; |
| 114 | } |
| 115 | if( m_windowStyle & wxLB_ALWAYS_SB ) |
| 116 | { |
| 117 | XtSetArg( args[count], XmNscrollBarDisplayPolicy, XmSTATIC ); |
| 118 | ++count; |
| 119 | } |
| 120 | |
| 121 | Widget listWidget = |
| 122 | XmCreateScrolledList(parentWidget, |
| 123 | wxConstCast(name.c_str(), char), args, count); |
| 124 | |
| 125 | m_mainWidget = (WXWidget) listWidget; |
| 126 | |
| 127 | Set(n, choices); |
| 128 | |
| 129 | XtManageChild (listWidget); |
| 130 | |
| 131 | wxSize best = GetBestSize(); |
| 132 | if( size.x != -1 ) best.x = size.x; |
| 133 | if( size.y != -1 ) best.y = size.y; |
| 134 | |
| 135 | XtAddCallback (listWidget, |
| 136 | XmNbrowseSelectionCallback, |
| 137 | (XtCallbackProc) wxListBoxCallback, |
| 138 | (XtPointer) this); |
| 139 | XtAddCallback (listWidget, |
| 140 | XmNextendedSelectionCallback, |
| 141 | (XtCallbackProc) wxListBoxCallback, |
| 142 | (XtPointer) this); |
| 143 | XtAddCallback (listWidget, |
| 144 | XmNmultipleSelectionCallback, |
| 145 | (XtCallbackProc) wxListBoxCallback, |
| 146 | (XtPointer) this); |
| 147 | XtAddCallback (listWidget, |
| 148 | XmNdefaultActionCallback, |
| 149 | (XtCallbackProc) wxListBoxCallback, |
| 150 | (XtPointer) this); |
| 151 | |
| 152 | AttachWidget (parent, m_mainWidget, (WXWidget) NULL, |
| 153 | pos.x, pos.y, best.x, best.y); |
| 154 | |
| 155 | ChangeBackgroundColour(); |
| 156 | |
| 157 | return TRUE; |
| 158 | } |
| 159 | |
| 160 | wxListBox::~wxListBox() |
| 161 | { |
| 162 | if( HasClientObjectData() ) |
| 163 | m_clientDataDict.DestroyData(); |
| 164 | } |
| 165 | |
| 166 | void wxListBox::SetSelectionPolicy() |
| 167 | { |
| 168 | Widget listBox = (Widget)m_mainWidget; |
| 169 | Arg args[3]; |
| 170 | |
| 171 | XtSetArg( args[0], XmNlistSizePolicy, XmCONSTANT ); |
| 172 | |
| 173 | XtSetArg( args[1], XmNselectionPolicy, |
| 174 | ( m_windowStyle & wxLB_MULTIPLE ) ? XmMULTIPLE_SELECT : |
| 175 | ( m_windowStyle & wxLB_EXTENDED ) ? XmEXTENDED_SELECT : |
| 176 | XmBROWSE_SELECT ); |
| 177 | |
| 178 | XtSetValues( listBox, args, 2 ); |
| 179 | } |
| 180 | |
| 181 | void wxListBox::DoSetFirstItem( int N ) |
| 182 | { |
| 183 | int count, length; |
| 184 | |
| 185 | if (N < 0) |
| 186 | return; |
| 187 | XtVaGetValues ((Widget) m_mainWidget, |
| 188 | XmNvisibleItemCount, &count, |
| 189 | XmNitemCount, &length, |
| 190 | NULL); |
| 191 | if ((N + count) >= length) |
| 192 | N = length - count; |
| 193 | XmListSetPos ((Widget) m_mainWidget, N + 1); |
| 194 | } |
| 195 | |
| 196 | void wxListBox::Delete(int N) |
| 197 | { |
| 198 | wxSizeKeeper sk( this ); |
| 199 | Widget listBox = (Widget) m_mainWidget; |
| 200 | |
| 201 | bool managed = XtIsManaged(listBox); |
| 202 | |
| 203 | if (managed) |
| 204 | XtUnmanageChild (listBox); |
| 205 | |
| 206 | XmListDeletePos (listBox, N + 1); |
| 207 | |
| 208 | if (managed) |
| 209 | XtManageChild (listBox); |
| 210 | |
| 211 | sk.Restore(); |
| 212 | m_clientDataDict.Delete(N, HasClientObjectData()); |
| 213 | m_noItems --; |
| 214 | } |
| 215 | |
| 216 | int wxListBox::DoAppend(const wxString& item) |
| 217 | { |
| 218 | wxSizeKeeper sk( this ); |
| 219 | Widget listBox = (Widget) m_mainWidget; |
| 220 | |
| 221 | bool managed = XtIsManaged(listBox); |
| 222 | |
| 223 | if (managed) |
| 224 | XtUnmanageChild (listBox); |
| 225 | int n; |
| 226 | XtVaGetValues (listBox, XmNitemCount, &n, NULL); |
| 227 | wxXmString text( item ); |
| 228 | // XmListAddItem(listBox, text, n + 1); |
| 229 | XmListAddItemUnselected (listBox, text(), 0); |
| 230 | |
| 231 | // It seems that if the list is cleared, we must re-ask for |
| 232 | // selection policy!! |
| 233 | SetSelectionPolicy(); |
| 234 | |
| 235 | if (managed) |
| 236 | XtManageChild (listBox); |
| 237 | |
| 238 | sk.Restore(); |
| 239 | m_noItems ++; |
| 240 | |
| 241 | return GetCount() - 1; |
| 242 | } |
| 243 | |
| 244 | void wxListBox::DoSetItems(const wxArrayString& items, void** clientData) |
| 245 | { |
| 246 | wxSizeKeeper sk( this ); |
| 247 | Widget listBox = (Widget) m_mainWidget; |
| 248 | |
| 249 | if( HasClientObjectData() ) |
| 250 | m_clientDataDict.DestroyData(); |
| 251 | |
| 252 | bool managed = XtIsManaged(listBox); |
| 253 | |
| 254 | if (managed) |
| 255 | XtUnmanageChild (listBox); |
| 256 | XmString *text = new XmString[items.GetCount()]; |
| 257 | size_t i; |
| 258 | for (i = 0; i < items.GetCount(); ++i) |
| 259 | text[i] = wxStringToXmString (items[i]); |
| 260 | |
| 261 | if ( clientData ) |
| 262 | for (i = 0; i < items.GetCount(); ++i) |
| 263 | m_clientDataDict.Set(i, (wxClientData*)clientData[i], FALSE); |
| 264 | |
| 265 | XmListAddItems (listBox, text, items.GetCount(), 0); |
| 266 | for (i = 0; i < items.GetCount(); i++) |
| 267 | XmStringFree (text[i]); |
| 268 | delete[] text; |
| 269 | |
| 270 | // It seems that if the list is cleared, we must re-ask for |
| 271 | // selection policy!! |
| 272 | SetSelectionPolicy(); |
| 273 | |
| 274 | if (managed) |
| 275 | XtManageChild (listBox); |
| 276 | |
| 277 | sk.Restore(); |
| 278 | |
| 279 | m_noItems = items.GetCount(); |
| 280 | } |
| 281 | |
| 282 | int wxDoFindStringInList(Widget w, const wxString& s) |
| 283 | { |
| 284 | wxXmString str( s ); |
| 285 | int *positions = NULL; |
| 286 | int no_positions = 0; |
| 287 | bool success = XmListGetMatchPos (w, str(), |
| 288 | &positions, &no_positions); |
| 289 | |
| 290 | if (success) |
| 291 | { |
| 292 | int pos = positions[0]; |
| 293 | if (positions) |
| 294 | XtFree ((char *) positions); |
| 295 | return pos - 1; |
| 296 | } |
| 297 | else |
| 298 | return -1; |
| 299 | } |
| 300 | |
| 301 | int wxListBox::FindString(const wxString& s) const |
| 302 | { |
| 303 | return wxDoFindStringInList( (Widget)m_mainWidget, s ); |
| 304 | } |
| 305 | |
| 306 | void wxListBox::Clear() |
| 307 | { |
| 308 | if (m_noItems <= 0) |
| 309 | return; |
| 310 | |
| 311 | wxSizeKeeper sk( this ); |
| 312 | Widget listBox = (Widget) m_mainWidget; |
| 313 | |
| 314 | XmListDeleteAllItems (listBox); |
| 315 | if( HasClientObjectData() ) |
| 316 | m_clientDataDict.DestroyData(); |
| 317 | |
| 318 | sk.Restore(); |
| 319 | |
| 320 | m_noItems = 0; |
| 321 | } |
| 322 | |
| 323 | void wxListBox::SetSelection(int N, bool select) |
| 324 | { |
| 325 | m_inSetValue = TRUE; |
| 326 | if (select) |
| 327 | { |
| 328 | #if 0 |
| 329 | if (m_windowStyle & wxLB_MULTIPLE) |
| 330 | { |
| 331 | int *selections = NULL; |
| 332 | int n = GetSelections (&selections); |
| 333 | |
| 334 | // This hack is supposed to work, to make it possible |
| 335 | // to select more than one item, but it DOESN'T under Motif 1.1. |
| 336 | |
| 337 | XtVaSetValues ((Widget) m_mainWidget, |
| 338 | XmNselectionPolicy, XmMULTIPLE_SELECT, |
| 339 | NULL); |
| 340 | |
| 341 | int i; |
| 342 | for (i = 0; i < n; i++) |
| 343 | XmListSelectPos ((Widget) m_mainWidget, |
| 344 | selections[i] + 1, FALSE); |
| 345 | |
| 346 | XmListSelectPos ((Widget) m_mainWidget, N + 1, FALSE); |
| 347 | |
| 348 | XtVaSetValues ((Widget) m_mainWidget, |
| 349 | XmNselectionPolicy, XmEXTENDED_SELECT, |
| 350 | NULL); |
| 351 | } |
| 352 | else |
| 353 | #endif // 0 |
| 354 | XmListSelectPos ((Widget) m_mainWidget, N + 1, FALSE); |
| 355 | |
| 356 | } |
| 357 | else |
| 358 | XmListDeselectPos ((Widget) m_mainWidget, N + 1); |
| 359 | |
| 360 | m_inSetValue = FALSE; |
| 361 | } |
| 362 | |
| 363 | bool wxListBox::IsSelected(int N) const |
| 364 | { |
| 365 | // In Motif, no simple way to determine if the item is selected. |
| 366 | wxArrayInt theSelections; |
| 367 | int count = GetSelections (theSelections); |
| 368 | if (count == 0) |
| 369 | return FALSE; |
| 370 | else |
| 371 | { |
| 372 | int j; |
| 373 | for (j = 0; j < count; j++) |
| 374 | if (theSelections[j] == N) |
| 375 | return TRUE; |
| 376 | } |
| 377 | return FALSE; |
| 378 | } |
| 379 | |
| 380 | void wxListBox::DoSetItemClientObject(int n, wxClientData* clientData) |
| 381 | { |
| 382 | m_clientDataDict.Set(n, clientData, FALSE); |
| 383 | } |
| 384 | |
| 385 | wxClientData* wxListBox::DoGetItemClientObject(int n) const |
| 386 | { |
| 387 | return m_clientDataDict.Get(n); |
| 388 | } |
| 389 | |
| 390 | void *wxListBox::DoGetItemClientData(int N) const |
| 391 | { |
| 392 | return (void*)m_clientDataDict.Get(N); |
| 393 | } |
| 394 | |
| 395 | void wxListBox::DoSetItemClientData(int N, void *Client_data) |
| 396 | { |
| 397 | m_clientDataDict.Set(N, (wxClientData*)Client_data, FALSE); |
| 398 | } |
| 399 | |
| 400 | // Return number of selections and an array of selected integers |
| 401 | int wxListBox::GetSelections(wxArrayInt& aSelections) const |
| 402 | { |
| 403 | aSelections.Empty(); |
| 404 | |
| 405 | Widget listBox = (Widget) m_mainWidget; |
| 406 | int *posList = NULL; |
| 407 | int posCnt = 0; |
| 408 | bool flag = XmListGetSelectedPos (listBox, &posList, &posCnt); |
| 409 | if (flag) |
| 410 | { |
| 411 | if (posCnt > 0) |
| 412 | { |
| 413 | aSelections.Alloc(posCnt); |
| 414 | |
| 415 | int i; |
| 416 | for (i = 0; i < posCnt; i++) |
| 417 | aSelections.Add(posList[i] - 1); |
| 418 | |
| 419 | XtFree ((char *) posList); |
| 420 | return posCnt; |
| 421 | } |
| 422 | else |
| 423 | return 0; |
| 424 | } |
| 425 | else |
| 426 | return 0; |
| 427 | } |
| 428 | |
| 429 | // Get single selection, for single choice list items |
| 430 | int wxDoGetSelectionInList(Widget listBox) |
| 431 | { |
| 432 | int *posList = NULL; |
| 433 | int posCnt = 0; |
| 434 | bool flag = XmListGetSelectedPos (listBox, &posList, &posCnt); |
| 435 | if (flag) |
| 436 | { |
| 437 | int id = -1; |
| 438 | if (posCnt > 0) |
| 439 | id = posList[0] - 1; |
| 440 | XtFree ((char *) posList); |
| 441 | return id; |
| 442 | } |
| 443 | else |
| 444 | return -1; |
| 445 | } |
| 446 | |
| 447 | int wxListBox::GetSelection() const |
| 448 | { |
| 449 | return wxDoGetSelectionInList((Widget) m_mainWidget); |
| 450 | } |
| 451 | |
| 452 | // Find string for position |
| 453 | wxString wxDoGetStringInList( Widget listBox, int n ) |
| 454 | { |
| 455 | XmString *strlist; |
| 456 | int count; |
| 457 | XtVaGetValues( listBox, |
| 458 | XmNitemCount, &count, |
| 459 | XmNitems, &strlist, |
| 460 | NULL ); |
| 461 | if( n < count && n >= 0 ) |
| 462 | return wxXmStringToString( strlist[n] ); |
| 463 | else |
| 464 | return wxEmptyString; |
| 465 | } |
| 466 | |
| 467 | wxString wxListBox::GetString( int n ) const |
| 468 | { |
| 469 | return wxDoGetStringInList( (Widget)m_mainWidget, n ); |
| 470 | } |
| 471 | |
| 472 | void wxListBox::DoInsertItems(const wxArrayString& items, int pos) |
| 473 | { |
| 474 | wxSizeKeeper sk( this ); |
| 475 | Widget listBox = (Widget) m_mainWidget; |
| 476 | |
| 477 | bool managed = XtIsManaged(listBox); |
| 478 | |
| 479 | if (managed) |
| 480 | XtUnmanageChild(listBox); |
| 481 | |
| 482 | XmString *text = new XmString[items.GetCount()]; |
| 483 | size_t i; |
| 484 | // Steve Hammes: Motif 1.1 compatibility |
| 485 | // #if XmVersion > 1100 |
| 486 | // Corrected by Sergey Krasnov from Steve Hammes' code |
| 487 | #if XmVersion > 1001 |
| 488 | for (i = 0; i < items.GetCount(); i++) |
| 489 | text[i] = wxStringToXmString(items[i]); |
| 490 | XmListAddItemsUnselected(listBox, text, items.GetCount(), pos+1); |
| 491 | #else |
| 492 | for (i = 0; i < items.GetCount(); i++) |
| 493 | { |
| 494 | text[i] = wxStringToXmString(items[i]); |
| 495 | // Another Sergey correction |
| 496 | XmListAddItemUnselected(listBox, text[i], pos+i+1); |
| 497 | } |
| 498 | #endif |
| 499 | for (i = 0; i < items.GetCount(); i++) |
| 500 | XmStringFree(text[i]); |
| 501 | delete[] text; |
| 502 | |
| 503 | // It seems that if the list is cleared, we must re-ask for |
| 504 | // selection policy!! |
| 505 | SetSelectionPolicy(); |
| 506 | |
| 507 | if (managed) |
| 508 | XtManageChild(listBox); |
| 509 | |
| 510 | sk.Restore(); |
| 511 | |
| 512 | m_noItems += items.GetCount(); |
| 513 | } |
| 514 | |
| 515 | void wxListBox::SetString(int N, const wxString& s) |
| 516 | { |
| 517 | wxSizeKeeper sk( this ); |
| 518 | Widget listBox = (Widget) m_mainWidget; |
| 519 | |
| 520 | wxXmString text( s ); |
| 521 | |
| 522 | // delete the item and add it again. |
| 523 | // FIXME isn't there a way to change it in place? |
| 524 | XmListDeletePos (listBox, N+1); |
| 525 | XmListAddItem (listBox, text(), N+1); |
| 526 | |
| 527 | sk.Restore(); |
| 528 | } |
| 529 | |
| 530 | void wxListBox::Command (wxCommandEvent & event) |
| 531 | { |
| 532 | if (event.m_extraLong) |
| 533 | SetSelection (event.m_commandInt); |
| 534 | else |
| 535 | { |
| 536 | Deselect (event.m_commandInt); |
| 537 | return; |
| 538 | } |
| 539 | ProcessCommand (event); |
| 540 | } |
| 541 | |
| 542 | void wxListBoxCallback (Widget WXUNUSED(w), XtPointer clientData, |
| 543 | XmListCallbackStruct * cbs) |
| 544 | { |
| 545 | wxListBox *item = (wxListBox *) clientData; |
| 546 | |
| 547 | if (item->InSetValue()) |
| 548 | return; |
| 549 | |
| 550 | wxEventType evtType; |
| 551 | |
| 552 | if( cbs->reason == XmCR_DEFAULT_ACTION ) |
| 553 | evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED; |
| 554 | else |
| 555 | evtType = wxEVT_COMMAND_LISTBOX_SELECTED; |
| 556 | |
| 557 | int n = cbs->item_position - 1; |
| 558 | wxCommandEvent event (evtType, item->GetId()); |
| 559 | if ( item->HasClientObjectData() ) |
| 560 | event.SetClientObject( item->GetClientObject(n) ); |
| 561 | else if ( item->HasClientUntypedData() ) |
| 562 | event.SetClientData( item->GetClientData(n) ); |
| 563 | event.m_commandInt = n; |
| 564 | event.m_extraLong = TRUE; |
| 565 | event.SetEventObject(item); |
| 566 | event.SetString( item->GetString( n ) ); |
| 567 | |
| 568 | int x = -1; |
| 569 | if( NULL != cbs->event && cbs->event->type == ButtonRelease ) |
| 570 | { |
| 571 | XButtonEvent* evt = (XButtonEvent*)cbs->event; |
| 572 | |
| 573 | x = evt->x; |
| 574 | } |
| 575 | |
| 576 | switch (cbs->reason) |
| 577 | { |
| 578 | case XmCR_MULTIPLE_SELECT: |
| 579 | case XmCR_BROWSE_SELECT: |
| 580 | #if wxUSE_CHECKLISTBOX |
| 581 | item->DoToggleItem( n, x ); |
| 582 | #endif |
| 583 | case XmCR_DEFAULT_ACTION: |
| 584 | item->GetEventHandler()->ProcessEvent(event); |
| 585 | break; |
| 586 | case XmCR_EXTENDED_SELECT: |
| 587 | switch (cbs->selection_type) |
| 588 | { |
| 589 | case XmINITIAL: |
| 590 | case XmADDITION: |
| 591 | case XmMODIFICATION: |
| 592 | item->DoToggleItem( n, x ); |
| 593 | item->GetEventHandler()->ProcessEvent(event); |
| 594 | break; |
| 595 | } |
| 596 | break; |
| 597 | } |
| 598 | } |
| 599 | |
| 600 | WXWidget wxListBox::GetTopWidget() const |
| 601 | { |
| 602 | return (WXWidget) XtParent( (Widget) m_mainWidget ); |
| 603 | } |
| 604 | |
| 605 | void wxListBox::ChangeBackgroundColour() |
| 606 | { |
| 607 | wxWindow::ChangeBackgroundColour(); |
| 608 | |
| 609 | Widget parent = XtParent ((Widget) m_mainWidget); |
| 610 | Widget hsb, vsb; |
| 611 | |
| 612 | XtVaGetValues (parent, |
| 613 | XmNhorizontalScrollBar, &hsb, |
| 614 | XmNverticalScrollBar, &vsb, |
| 615 | NULL); |
| 616 | |
| 617 | /* TODO: should scrollbars be affected? Should probably have separate |
| 618 | * function to change them (by default, taken from wxSystemSettings) |
| 619 | */ |
| 620 | wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE); |
| 621 | wxDoChangeBackgroundColour((WXWidget) hsb, backgroundColour, TRUE); |
| 622 | wxDoChangeBackgroundColour((WXWidget) vsb, backgroundColour, TRUE); |
| 623 | |
| 624 | XtVaSetValues (hsb, |
| 625 | XmNtroughColor, backgroundColour.AllocColour(XtDisplay(hsb)), |
| 626 | NULL); |
| 627 | XtVaSetValues (vsb, |
| 628 | XmNtroughColor, backgroundColour.AllocColour(XtDisplay(vsb)), |
| 629 | NULL); |
| 630 | |
| 631 | // MBN: why change parent's background? It looks really ugly. |
| 632 | // wxDoChangeBackgroundColour((WXWidget) parent, m_backgroundColour, TRUE); |
| 633 | } |
| 634 | |
| 635 | void wxListBox::ChangeForegroundColour() |
| 636 | { |
| 637 | wxWindow::ChangeForegroundColour(); |
| 638 | |
| 639 | Widget parent = XtParent ((Widget) m_mainWidget); |
| 640 | Widget hsb, vsb; |
| 641 | |
| 642 | XtVaGetValues(parent, |
| 643 | XmNhorizontalScrollBar, &hsb, |
| 644 | XmNverticalScrollBar, &vsb, |
| 645 | NULL); |
| 646 | |
| 647 | /* TODO: should scrollbars be affected? Should probably have separate |
| 648 | function to change them (by default, taken from wxSystemSettings) |
| 649 | |
| 650 | wxDoChangeForegroundColour((WXWidget) hsb, m_foregroundColour); |
| 651 | wxDoChangeForegroundColour((WXWidget) vsb, m_foregroundColour); |
| 652 | wxDoChangeForegroundColour((WXWidget) parent, m_foregroundColour); |
| 653 | */ |
| 654 | } |
| 655 | |
| 656 | int wxListBox::GetCount() const |
| 657 | { |
| 658 | return m_noItems; |
| 659 | } |
| 660 | |
| 661 | #define LIST_SCROLL_SPACING 6 |
| 662 | |
| 663 | wxSize wxDoGetListBoxBestSize( Widget listWidget, const wxWindow* window ) |
| 664 | { |
| 665 | int max; |
| 666 | Dimension spacing, highlight, xmargin, ymargin, shadow; |
| 667 | int width = 0; |
| 668 | int x, y; |
| 669 | |
| 670 | XtVaGetValues( listWidget, |
| 671 | XmNitemCount, &max, |
| 672 | XmNlistSpacing, &spacing, |
| 673 | XmNhighlightThickness, &highlight, |
| 674 | XmNlistMarginWidth, &xmargin, |
| 675 | XmNlistMarginHeight, &ymargin, |
| 676 | XmNshadowThickness, &shadow, |
| 677 | NULL ); |
| 678 | |
| 679 | for( size_t i = 0; i < (size_t)max; ++i ) |
| 680 | { |
| 681 | window->GetTextExtent( wxDoGetStringInList( listWidget, i ), &x, &y ); |
| 682 | width = wxMax( width, x ); |
| 683 | } |
| 684 | |
| 685 | // use some arbitrary value if there are no strings |
| 686 | if( width == 0 ) |
| 687 | width = 100; |
| 688 | |
| 689 | // get my |
| 690 | window->GetTextExtent( "v", &x, &y ); |
| 691 | |
| 692 | // make it a little larger than widest string, plus the scrollbar |
| 693 | width += wxSystemSettings::GetMetric( wxSYS_VSCROLL_X ) |
| 694 | + 2 * highlight + LIST_SCROLL_SPACING + 2 * xmargin + 2 * shadow; |
| 695 | |
| 696 | // at least 3 items, at most 10 |
| 697 | int height = wxMax( 3, wxMin( 10, max ) ) * |
| 698 | ( y + spacing + 2 * highlight ) + 2 * ymargin + 2 * shadow; |
| 699 | |
| 700 | return wxSize( width, height ); |
| 701 | } |
| 702 | |
| 703 | wxSize wxListBox::DoGetBestSize() const |
| 704 | { |
| 705 | return wxDoGetListBoxBestSize( (Widget)m_mainWidget, this ); |
| 706 | } |
| 707 | |