| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: listbox.cpp |
| 3 | // Purpose: wxListBox |
| 4 | // Author: David Webster |
| 5 | // Modified by: |
| 6 | // Created: 10/09/99 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) David Webster |
| 9 | // Licence: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // For compilers that support precompilation, includes "wx.h". |
| 13 | #include "wx/wxprec.h" |
| 14 | |
| 15 | #include "wx/window.h" |
| 16 | #include "wx/os2/private.h" |
| 17 | |
| 18 | #ifndef WX_PRECOMP |
| 19 | #include "wx/listbox.h" |
| 20 | #include "wx/settings.h" |
| 21 | #include "wx/brush.h" |
| 22 | #include "wx/font.h" |
| 23 | #include "wx/dc.h" |
| 24 | #include "wx/dcscreen.h" |
| 25 | #include "wx/utils.h" |
| 26 | #include "wx/scrolwin.h" |
| 27 | #endif |
| 28 | |
| 29 | #define INCL_M |
| 30 | #include <os2.h> |
| 31 | |
| 32 | #include "wx/dynarray.h" |
| 33 | #include "wx/log.h" |
| 34 | |
| 35 | #if wxUSE_LISTBOX |
| 36 | |
| 37 | #if wxUSE_OWNER_DRAWN |
| 38 | #include "wx/ownerdrw.h" |
| 39 | #endif |
| 40 | |
| 41 | IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl) |
| 42 | |
| 43 | // ============================================================================ |
| 44 | // list box item declaration and implementation |
| 45 | // ============================================================================ |
| 46 | |
| 47 | #if wxUSE_OWNER_DRAWN |
| 48 | |
| 49 | class wxListBoxItem : public wxOwnerDrawn |
| 50 | { |
| 51 | public: |
| 52 | wxListBoxItem(const wxString& rsStr = ""); |
| 53 | }; |
| 54 | |
| 55 | wxListBoxItem::wxListBoxItem( |
| 56 | const wxString& rsStr |
| 57 | ) |
| 58 | : wxOwnerDrawn( rsStr |
| 59 | ,FALSE |
| 60 | ) |
| 61 | { |
| 62 | // |
| 63 | // No bitmaps/checkmarks |
| 64 | // |
| 65 | SetMarginWidth(0); |
| 66 | } // end of wxListBoxItem::wxListBoxItem |
| 67 | |
| 68 | wxOwnerDrawn* wxListBox::CreateItem( |
| 69 | size_t n |
| 70 | ) |
| 71 | { |
| 72 | return new wxListBoxItem(); |
| 73 | } // end of wxListBox::CreateItem |
| 74 | |
| 75 | #endif //USE_OWNER_DRAWN |
| 76 | |
| 77 | // ============================================================================ |
| 78 | // list box control implementation |
| 79 | // ============================================================================ |
| 80 | |
| 81 | // Listbox item |
| 82 | wxListBox::wxListBox() |
| 83 | { |
| 84 | m_nNumItems = 0; |
| 85 | m_nSelected = 0; |
| 86 | } // end of wxListBox::wxListBox |
| 87 | |
| 88 | bool wxListBox::Create( |
| 89 | wxWindow* pParent |
| 90 | , wxWindowID vId |
| 91 | , const wxPoint& rPos |
| 92 | , const wxSize& rSize |
| 93 | , const wxArrayString& asChoices |
| 94 | , long lStyle |
| 95 | , const wxValidator& rValidator |
| 96 | , const wxString& rsName |
| 97 | ) |
| 98 | { |
| 99 | wxCArrayString chs(asChoices); |
| 100 | |
| 101 | return Create(pParent, vId, rPos, rSize, chs.GetCount(), chs.GetStrings(), |
| 102 | lStyle, rValidator, rsName); |
| 103 | } |
| 104 | |
| 105 | bool wxListBox::Create( |
| 106 | wxWindow* pParent |
| 107 | , wxWindowID vId |
| 108 | , const wxPoint& rPos |
| 109 | , const wxSize& rSize |
| 110 | , int n |
| 111 | , const wxString asChoices[] |
| 112 | , long lStyle |
| 113 | , const wxValidator& rValidator |
| 114 | , const wxString& rsName |
| 115 | ) |
| 116 | { |
| 117 | m_nNumItems = 0; |
| 118 | m_hWnd = 0; |
| 119 | m_nSelected = 0; |
| 120 | |
| 121 | SetName(rsName); |
| 122 | #if wxUSE_VALIDATORS |
| 123 | SetValidator(rValidator); |
| 124 | #endif |
| 125 | |
| 126 | if (pParent) |
| 127 | pParent->AddChild(this); |
| 128 | |
| 129 | wxSystemSettings vSettings; |
| 130 | |
| 131 | SetBackgroundColour(vSettings.GetSystemColour(wxSYS_COLOUR_WINDOW)); |
| 132 | SetForegroundColour(pParent->GetForegroundColour()); |
| 133 | |
| 134 | m_windowId = (vId == -1) ? (int)NewControlId() : vId; |
| 135 | |
| 136 | int nX = rPos.x; |
| 137 | int nY = rPos.y; |
| 138 | int nWidth = rSize.x; |
| 139 | int nHeight = rSize.y; |
| 140 | |
| 141 | m_windowStyle = lStyle; |
| 142 | |
| 143 | lStyle = WS_VISIBLE; |
| 144 | |
| 145 | if (m_windowStyle & wxCLIP_SIBLINGS ) |
| 146 | lStyle |= WS_CLIPSIBLINGS; |
| 147 | if (m_windowStyle & wxLB_MULTIPLE) |
| 148 | lStyle |= LS_MULTIPLESEL; |
| 149 | else if (m_windowStyle & wxLB_EXTENDED) |
| 150 | lStyle |= LS_EXTENDEDSEL; |
| 151 | if (m_windowStyle & wxLB_HSCROLL) |
| 152 | lStyle |= LS_HORZSCROLL; |
| 153 | if (m_windowStyle & wxLB_OWNERDRAW) |
| 154 | lStyle |= LS_OWNERDRAW; |
| 155 | |
| 156 | // |
| 157 | // Without this style, you get unexpected heights, so e.g. constraint layout |
| 158 | // doesn't work properly |
| 159 | // |
| 160 | lStyle |= LS_NOADJUSTPOS; |
| 161 | |
| 162 | m_hWnd = (WXHWND)::WinCreateWindow( GetWinHwnd(pParent) // Parent |
| 163 | ,WC_LISTBOX // Default Listbox class |
| 164 | ,"LISTBOX" // Control's name |
| 165 | ,lStyle // Initial Style |
| 166 | ,0, 0, 0, 0 // Position and size |
| 167 | ,GetWinHwnd(pParent) // Owner |
| 168 | ,HWND_TOP // Z-Order |
| 169 | ,(HMENU)m_windowId // Id |
| 170 | ,NULL // Control Data |
| 171 | ,NULL // Presentation Parameters |
| 172 | ); |
| 173 | if (m_hWnd == 0) |
| 174 | { |
| 175 | return FALSE; |
| 176 | } |
| 177 | |
| 178 | // |
| 179 | // Subclass again for purposes of dialog editing mode |
| 180 | // |
| 181 | SubclassWin(m_hWnd); |
| 182 | |
| 183 | LONG lUi; |
| 184 | |
| 185 | for (lUi = 0; lUi < (LONG)n; lUi++) |
| 186 | { |
| 187 | Append(asChoices[lUi]); |
| 188 | } |
| 189 | wxFont* pTextFont = new wxFont( 10 |
| 190 | ,wxMODERN |
| 191 | ,wxNORMAL |
| 192 | ,wxNORMAL |
| 193 | ); |
| 194 | SetFont(*pTextFont); |
| 195 | |
| 196 | // |
| 197 | // Set standard wxWidgets colors for Listbox items and highlighting |
| 198 | // |
| 199 | wxColour vColour; |
| 200 | |
| 201 | vColour.Set(wxString("WHITE")); |
| 202 | |
| 203 | LONG lColor = (LONG)vColour.GetPixel(); |
| 204 | |
| 205 | ::WinSetPresParam( m_hWnd |
| 206 | ,PP_HILITEFOREGROUNDCOLOR |
| 207 | ,sizeof(LONG) |
| 208 | ,(PVOID)&lColor |
| 209 | ); |
| 210 | vColour.Set(wxString("NAVY")); |
| 211 | lColor = (LONG)vColour.GetPixel(); |
| 212 | ::WinSetPresParam( m_hWnd |
| 213 | ,PP_HILITEBACKGROUNDCOLOR |
| 214 | ,sizeof(LONG) |
| 215 | ,(PVOID)&lColor |
| 216 | ); |
| 217 | |
| 218 | SetSize( nX |
| 219 | ,nY |
| 220 | ,nWidth |
| 221 | ,nHeight |
| 222 | ); |
| 223 | delete pTextFont; |
| 224 | return TRUE; |
| 225 | } // end of wxListBox::Create |
| 226 | |
| 227 | wxListBox::~wxListBox() |
| 228 | { |
| 229 | #if wxUSE_OWNER_DRAWN |
| 230 | size_t lUiCount = m_aItems.Count(); |
| 231 | |
| 232 | while (lUiCount-- != 0) |
| 233 | { |
| 234 | delete m_aItems[lUiCount]; |
| 235 | } |
| 236 | #endif // wxUSE_OWNER_DRAWN |
| 237 | } // end of wxListBox::~wxListBox |
| 238 | |
| 239 | void wxListBox::SetupColours() |
| 240 | { |
| 241 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); |
| 242 | SetForegroundColour(GetParent()->GetForegroundColour()); |
| 243 | } // end of wxListBox::SetupColours |
| 244 | |
| 245 | // ---------------------------------------------------------------------------- |
| 246 | // implementation of wxListBoxBase methods |
| 247 | // ---------------------------------------------------------------------------- |
| 248 | |
| 249 | void wxListBox::DoSetFirstItem( |
| 250 | int N |
| 251 | ) |
| 252 | { |
| 253 | wxCHECK_RET( N >= 0 && N < m_nNumItems, |
| 254 | wxT("invalid index in wxListBox::SetFirstItem") ); |
| 255 | |
| 256 | ::WinSendMsg(GetHwnd(), LM_SETTOPINDEX, MPFROMLONG(N), (MPARAM)0); |
| 257 | } // end of wxListBox::DoSetFirstItem |
| 258 | |
| 259 | void wxListBox::Delete( |
| 260 | int N |
| 261 | ) |
| 262 | { |
| 263 | wxCHECK_RET( N >= 0 && N < m_nNumItems, |
| 264 | wxT("invalid index in wxListBox::Delete") ); |
| 265 | |
| 266 | #if wxUSE_OWNER_DRAWN |
| 267 | delete m_aItems[N]; |
| 268 | m_aItems.RemoveAt(N); |
| 269 | #else // !wxUSE_OWNER_DRAWN |
| 270 | if (HasClientObjectData()) |
| 271 | { |
| 272 | delete GetClientObject(N); |
| 273 | } |
| 274 | #endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN |
| 275 | |
| 276 | ::WinSendMsg(GetHwnd(), LM_DELETEITEM, (MPARAM)N, (MPARAM)0); |
| 277 | m_nNumItems--; |
| 278 | } // end of wxListBox::DoSetFirstItem |
| 279 | |
| 280 | int wxListBox::DoAppend( |
| 281 | const wxString& rsItem |
| 282 | ) |
| 283 | { |
| 284 | long lIndex = 0; |
| 285 | LONG lIndexType = 0; |
| 286 | |
| 287 | if (m_windowStyle & wxLB_SORT) |
| 288 | lIndexType = LIT_SORTASCENDING; |
| 289 | else |
| 290 | lIndexType = LIT_END; |
| 291 | lIndex = (long)::WinSendMsg(GetHwnd(), LM_INSERTITEM, (MPARAM)lIndexType, (MPARAM)rsItem.c_str()); |
| 292 | m_nNumItems++; |
| 293 | |
| 294 | #if wxUSE_OWNER_DRAWN |
| 295 | if (m_windowStyle & wxLB_OWNERDRAW) |
| 296 | { |
| 297 | wxOwnerDrawn* pNewItem = CreateItem(lIndex); // dummy argument |
| 298 | wxScreenDC vDc; |
| 299 | |
| 300 | |
| 301 | pNewItem->SetName(rsItem); |
| 302 | m_aItems.Insert(pNewItem, lIndex); |
| 303 | ::WinSendMsg(GetHwnd(), LM_SETITEMHANDLE, (MPARAM)lIndex, MPFROMP(pNewItem)); |
| 304 | pNewItem->SetFont(GetFont()); |
| 305 | } |
| 306 | #endif |
| 307 | return (int)lIndex; |
| 308 | } // end of wxListBox::DoAppend |
| 309 | |
| 310 | void wxListBox::DoSetItems( |
| 311 | const wxArrayString& raChoices |
| 312 | , void** ppClientData |
| 313 | ) |
| 314 | { |
| 315 | BOOL bHideAndShow = IsShown(); |
| 316 | int i; |
| 317 | LONG lIndexType = 0; |
| 318 | |
| 319 | if (bHideAndShow) |
| 320 | { |
| 321 | ::WinShowWindow(GetHwnd(), FALSE); |
| 322 | } |
| 323 | ::WinSendMsg(GetHwnd(), LM_DELETEALL, (MPARAM)0, (MPARAM)0); |
| 324 | m_nNumItems = raChoices.GetCount(); |
| 325 | for (i = 0; i < m_nNumItems; i++) |
| 326 | { |
| 327 | |
| 328 | if (m_windowStyle & wxLB_SORT) |
| 329 | lIndexType = LIT_SORTASCENDING; |
| 330 | else |
| 331 | lIndexType = LIT_END; |
| 332 | ::WinSendMsg(GetHwnd(), LM_INSERTITEM, (MPARAM)lIndexType, (MPARAM)raChoices[i].c_str()); |
| 333 | |
| 334 | if (ppClientData) |
| 335 | { |
| 336 | #if wxUSE_OWNER_DRAWN |
| 337 | wxASSERT_MSG(ppClientData[i] == NULL, |
| 338 | wxT("Can't use client data with owner-drawn listboxes")); |
| 339 | #else // !wxUSE_OWNER_DRAWN |
| 340 | ::WinSendMsg(WinUtil_GetHwnd(), LM_SETITEMHANDLE, MPFROMLONG(lCount), MPFROMP(ppClientData[i])); |
| 341 | #endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | #if wxUSE_OWNER_DRAWN |
| 346 | if ( m_windowStyle & wxLB_OWNERDRAW ) |
| 347 | { |
| 348 | // |
| 349 | // First delete old items |
| 350 | // |
| 351 | WX_CLEAR_ARRAY(m_aItems); |
| 352 | |
| 353 | // |
| 354 | // Then create new ones |
| 355 | // |
| 356 | for (size_t ui = 0; ui < (size_t)m_nNumItems; ui++) |
| 357 | { |
| 358 | wxOwnerDrawn* pNewItem = CreateItem(ui); |
| 359 | |
| 360 | pNewItem->SetName(raChoices[ui]); |
| 361 | m_aItems.Add(pNewItem); |
| 362 | ::WinSendMsg(GetHwnd(), LM_SETITEMHANDLE, MPFROMLONG(ui), MPFROMP(pNewItem)); |
| 363 | } |
| 364 | } |
| 365 | #endif // wxUSE_OWNER_DRAWN |
| 366 | ::WinShowWindow(GetHwnd(), TRUE); |
| 367 | } // end of wxListBox::DoSetItems |
| 368 | |
| 369 | int wxListBox::FindString( |
| 370 | const wxString& rsString |
| 371 | ) const |
| 372 | { |
| 373 | int nPos; |
| 374 | LONG lTextLength; |
| 375 | PSZ zStr; |
| 376 | |
| 377 | |
| 378 | for (nPos = 0; nPos < m_nNumItems; nPos++) |
| 379 | { |
| 380 | lTextLength = LONGFROMMR(::WinSendMsg(GetHwnd(), LM_QUERYITEMTEXTLENGTH, (MPARAM)nPos, (MPARAM)0)); |
| 381 | zStr = new char[lTextLength + 1]; |
| 382 | ::WinSendMsg(GetHwnd(), LM_QUERYITEMTEXT, MPFROM2SHORT(nPos, (SHORT)lTextLength), (MPARAM)zStr); |
| 383 | if (rsString == (char*)zStr) |
| 384 | { |
| 385 | delete [] zStr; |
| 386 | break; |
| 387 | } |
| 388 | delete [] zStr; |
| 389 | } |
| 390 | return nPos; |
| 391 | } // end of wxListBox::FindString |
| 392 | |
| 393 | void wxListBox::Clear() |
| 394 | { |
| 395 | #if wxUSE_OWNER_DRAWN |
| 396 | size_t lUiCount = m_aItems.Count(); |
| 397 | |
| 398 | while (lUiCount-- != 0) |
| 399 | { |
| 400 | delete m_aItems[lUiCount]; |
| 401 | } |
| 402 | |
| 403 | m_aItems.Clear(); |
| 404 | #else // !wxUSE_OWNER_DRAWN |
| 405 | if (HasClientObjectData()) |
| 406 | { |
| 407 | for (size_t n = 0; n < (size_t)m_lNumItems; n++) |
| 408 | { |
| 409 | delete GetClientObject(n); |
| 410 | } |
| 411 | } |
| 412 | #endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN |
| 413 | ::WinSendMsg(GetHwnd(), LM_DELETEALL, (MPARAM)0, (MPARAM)0); |
| 414 | |
| 415 | m_nNumItems = 0; |
| 416 | } // end of wxListBox::Clear |
| 417 | |
| 418 | void wxListBox::SetSelection( |
| 419 | int N |
| 420 | , bool bSelect |
| 421 | ) |
| 422 | { |
| 423 | wxCHECK_RET( N >= 0 && N < m_nNumItems, |
| 424 | wxT("invalid index in wxListBox::SetSelection") ); |
| 425 | ::WinSendMsg( GetHwnd() |
| 426 | ,LM_SELECTITEM |
| 427 | ,MPFROMLONG(N) |
| 428 | ,(MPARAM)bSelect |
| 429 | ); |
| 430 | if(m_windowStyle & wxLB_OWNERDRAW) |
| 431 | Refresh(); |
| 432 | } // end of wxListBox::SetSelection |
| 433 | |
| 434 | bool wxListBox::IsSelected( |
| 435 | int N |
| 436 | ) const |
| 437 | { |
| 438 | wxCHECK_MSG( N >= 0 && N < m_nNumItems, FALSE, |
| 439 | wxT("invalid index in wxListBox::Selected") ); |
| 440 | |
| 441 | LONG lItem; |
| 442 | |
| 443 | if (GetWindowStyleFlag() & wxLB_EXTENDED) |
| 444 | { |
| 445 | if (N == 0) |
| 446 | lItem = LONGFROMMR(::WinSendMsg(GetHwnd(), LM_QUERYSELECTION, (MPARAM)LIT_FIRST, (MPARAM)0)); |
| 447 | else |
| 448 | lItem = LONGFROMMR(::WinSendMsg(GetHwnd(), LM_QUERYSELECTION, (MPARAM)(N - 1), (MPARAM)0)); |
| 449 | } |
| 450 | else |
| 451 | { |
| 452 | lItem = LONGFROMMR(::WinSendMsg(GetHwnd(), LM_QUERYSELECTION, (MPARAM)LIT_FIRST, (MPARAM)0)); |
| 453 | } |
| 454 | return (lItem == (LONG)N && lItem != LIT_NONE); |
| 455 | } // end of wxListBox::IsSelected |
| 456 | |
| 457 | wxClientData* wxListBox::DoGetItemClientObject( |
| 458 | int n |
| 459 | ) const |
| 460 | { |
| 461 | return (wxClientData *)DoGetItemClientData(n); |
| 462 | } |
| 463 | |
| 464 | void* wxListBox::DoGetItemClientData( |
| 465 | int n |
| 466 | ) const |
| 467 | { |
| 468 | wxCHECK_MSG( n >= 0 && n < m_nNumItems, NULL, |
| 469 | wxT("invalid index in wxListBox::GetClientData") ); |
| 470 | |
| 471 | return((void *)::WinSendMsg(GetHwnd(), LM_QUERYITEMHANDLE, MPFROMLONG(n), (MPARAM)0)); |
| 472 | } // end of wxListBox::DoGetItemClientData |
| 473 | |
| 474 | void wxListBox::DoSetItemClientObject( |
| 475 | int n |
| 476 | , wxClientData* pClientData |
| 477 | ) |
| 478 | { |
| 479 | DoSetItemClientData( n |
| 480 | ,pClientData |
| 481 | ); |
| 482 | } // end of wxListBox::DoSetItemClientObject |
| 483 | |
| 484 | void wxListBox::DoSetItemClientData( |
| 485 | int n |
| 486 | , void* pClientData |
| 487 | ) |
| 488 | { |
| 489 | wxCHECK_RET( n >= 0 && n < m_nNumItems, |
| 490 | wxT("invalid index in wxListBox::SetClientData") ); |
| 491 | |
| 492 | #if wxUSE_OWNER_DRAWN |
| 493 | if ( m_windowStyle & wxLB_OWNERDRAW ) |
| 494 | { |
| 495 | // |
| 496 | // Client data must be pointer to wxOwnerDrawn, otherwise we would crash |
| 497 | // in OnMeasure/OnDraw. |
| 498 | // |
| 499 | wxFAIL_MSG(wxT("Can't use client data with owner-drawn listboxes")); |
| 500 | } |
| 501 | #endif // wxUSE_OWNER_DRAWN |
| 502 | |
| 503 | ::WinSendMsg(GetHwnd(), LM_SETITEMHANDLE, MPFROMLONG(n), MPFROMP(pClientData)); |
| 504 | } // end of wxListBox::DoSetItemClientData |
| 505 | |
| 506 | bool wxListBox::HasMultipleSelection() const |
| 507 | { |
| 508 | return (m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED); |
| 509 | } // end of wxListBox::HasMultipleSelection |
| 510 | |
| 511 | int wxListBox::GetSelections( |
| 512 | wxArrayInt& raSelections |
| 513 | ) const |
| 514 | { |
| 515 | int nCount = 0; |
| 516 | LONG lItem; |
| 517 | |
| 518 | |
| 519 | raSelections.Empty(); |
| 520 | if (HasMultipleSelection()) |
| 521 | { |
| 522 | lItem = LONGFROMMR(::WinSendMsg( GetHwnd() |
| 523 | ,LM_QUERYSELECTION |
| 524 | ,(MPARAM)LIT_FIRST |
| 525 | ,(MPARAM)0 |
| 526 | ) |
| 527 | ); |
| 528 | if (lItem != LIT_NONE) |
| 529 | { |
| 530 | nCount++; |
| 531 | while ((lItem = LONGFROMMR(::WinSendMsg( GetHwnd() |
| 532 | ,LM_QUERYSELECTION |
| 533 | ,(MPARAM)lItem |
| 534 | ,(MPARAM)0 |
| 535 | ) |
| 536 | )) != LIT_NONE) |
| 537 | { |
| 538 | nCount++; |
| 539 | } |
| 540 | raSelections.Alloc(nCount); |
| 541 | lItem = LONGFROMMR(::WinSendMsg( GetHwnd() |
| 542 | ,LM_QUERYSELECTION |
| 543 | ,(MPARAM)LIT_FIRST |
| 544 | ,(MPARAM)0 |
| 545 | ) |
| 546 | ); |
| 547 | |
| 548 | raSelections.Add((int)lItem); |
| 549 | while ((lItem = LONGFROMMR(::WinSendMsg( GetHwnd() |
| 550 | ,LM_QUERYSELECTION |
| 551 | ,(MPARAM)lItem |
| 552 | ,(MPARAM)0 |
| 553 | ) |
| 554 | )) != LIT_NONE) |
| 555 | { |
| 556 | raSelections.Add((int)lItem); |
| 557 | } |
| 558 | return nCount; |
| 559 | } |
| 560 | return 0; |
| 561 | } |
| 562 | else // single-selection listbox |
| 563 | { |
| 564 | lItem = LONGFROMMR(::WinSendMsg( GetHwnd() |
| 565 | ,LM_QUERYSELECTION |
| 566 | ,(MPARAM)LIT_FIRST |
| 567 | ,(MPARAM)0 |
| 568 | ) |
| 569 | ); |
| 570 | raSelections.Add((int)lItem); |
| 571 | return 1; |
| 572 | } |
| 573 | return 0; |
| 574 | } // end of wxListBox::GetSelections |
| 575 | |
| 576 | int wxListBox::GetSelection() const |
| 577 | { |
| 578 | wxCHECK_MSG( !HasMultipleSelection(), |
| 579 | -1, |
| 580 | wxT("GetSelection() can't be used with multiple-selection " |
| 581 | "listboxes, use GetSelections() instead.") ); |
| 582 | |
| 583 | return(LONGFROMMR(::WinSendMsg( GetHwnd() |
| 584 | ,LM_QUERYSELECTION |
| 585 | ,(MPARAM)LIT_FIRST |
| 586 | ,(MPARAM)0 |
| 587 | ) |
| 588 | )); |
| 589 | } // end of wxListBox::GetSelection |
| 590 | |
| 591 | wxString wxListBox::GetString( |
| 592 | int N |
| 593 | ) const |
| 594 | { |
| 595 | LONG lLen = 0; |
| 596 | char* zBuf; |
| 597 | wxString sResult; |
| 598 | |
| 599 | wxCHECK_MSG( N >= 0 && N < m_nNumItems, "", |
| 600 | wxT("invalid index in wxListBox::GetClientData") ); |
| 601 | |
| 602 | lLen = LONGFROMMR(::WinSendMsg(GetHwnd(), LM_QUERYITEMTEXTLENGTH, (MPARAM)N, (MPARAM)0)); |
| 603 | zBuf = new char[lLen + 1]; |
| 604 | ::WinSendMsg(GetHwnd(), LM_QUERYITEMTEXT, MPFROM2SHORT((SHORT)N, (SHORT)lLen), (MPARAM)zBuf); |
| 605 | zBuf[lLen] = '\0'; |
| 606 | sResult = zBuf; |
| 607 | delete [] zBuf; |
| 608 | return sResult; |
| 609 | } // end of wxListBox::GetString |
| 610 | |
| 611 | void wxListBox::DoInsertItems( |
| 612 | const wxArrayString& asItems |
| 613 | , int nPos |
| 614 | ) |
| 615 | { |
| 616 | wxCHECK_RET( nPos >= 0 && nPos <= m_nNumItems, |
| 617 | wxT("invalid index in wxListBox::InsertItems") ); |
| 618 | |
| 619 | int nItems = asItems.GetCount(); |
| 620 | |
| 621 | for (int i = 0; i < nItems; i++) |
| 622 | { |
| 623 | int nIndex = (int)::WinSendMsg( GetHwnd() |
| 624 | ,LM_INSERTITEM |
| 625 | ,MPFROMLONG((LONG)(i + nPos)) |
| 626 | ,(MPARAM)asItems[i].c_str() |
| 627 | ); |
| 628 | |
| 629 | wxOwnerDrawn* pNewItem = CreateItem(nIndex); |
| 630 | |
| 631 | pNewItem->SetName(asItems[i]); |
| 632 | pNewItem->SetFont(GetFont()); |
| 633 | m_aItems.Insert(pNewItem, nIndex); |
| 634 | ::WinSendMsg( GetHwnd() |
| 635 | ,LM_SETITEMHANDLE |
| 636 | ,(MPARAM)((LONG)nIndex) |
| 637 | ,MPFROMP(pNewItem) |
| 638 | ); |
| 639 | m_nNumItems += nItems; |
| 640 | } |
| 641 | } // end of wxListBox::DoInsertItems |
| 642 | |
| 643 | void wxListBox::SetString( |
| 644 | int N |
| 645 | , const wxString& rsString |
| 646 | ) |
| 647 | { |
| 648 | wxCHECK_RET( N >= 0 && N < m_nNumItems, |
| 649 | wxT("invalid index in wxListBox::SetString") ); |
| 650 | |
| 651 | // |
| 652 | // Remember the state of the item |
| 653 | // |
| 654 | bool bWasSelected = IsSelected(N); |
| 655 | void* pOldData = NULL; |
| 656 | wxClientData* pOldObjData = NULL; |
| 657 | |
| 658 | if (m_clientDataItemsType == wxClientData_Void) |
| 659 | pOldData = GetClientData(N); |
| 660 | else if (m_clientDataItemsType == wxClientData_Object) |
| 661 | pOldObjData = GetClientObject(N); |
| 662 | |
| 663 | // |
| 664 | // Delete and recreate it |
| 665 | // |
| 666 | ::WinSendMsg( GetHwnd() |
| 667 | ,LM_DELETEITEM |
| 668 | ,(MPARAM)N |
| 669 | ,(MPARAM)0 |
| 670 | ); |
| 671 | |
| 672 | int nNewN = N; |
| 673 | |
| 674 | if (N == m_nNumItems - 1) |
| 675 | nNewN = -1; |
| 676 | |
| 677 | ::WinSendMsg( GetHwnd() |
| 678 | ,LM_INSERTITEM |
| 679 | ,(MPARAM)nNewN |
| 680 | ,(MPARAM)rsString.c_str() |
| 681 | ); |
| 682 | |
| 683 | // |
| 684 | // Restore the client data |
| 685 | // |
| 686 | if (pOldData) |
| 687 | SetClientData( N |
| 688 | ,pOldData |
| 689 | ); |
| 690 | else if (pOldObjData) |
| 691 | SetClientObject( N |
| 692 | ,pOldObjData |
| 693 | ); |
| 694 | |
| 695 | // |
| 696 | // We may have lost the selection |
| 697 | // |
| 698 | if (bWasSelected) |
| 699 | Select(N); |
| 700 | |
| 701 | #if wxUSE_OWNER_DRAWN |
| 702 | if (m_windowStyle & wxLB_OWNERDRAW) |
| 703 | // |
| 704 | // Update item's text |
| 705 | // |
| 706 | m_aItems[N]->SetName(rsString); |
| 707 | #endif //USE_OWNER_DRAWN |
| 708 | } // end of wxListBox::SetString |
| 709 | |
| 710 | int wxListBox::GetCount() const |
| 711 | { |
| 712 | return m_nNumItems; |
| 713 | } |
| 714 | |
| 715 | // ---------------------------------------------------------------------------- |
| 716 | // helpers |
| 717 | // ---------------------------------------------------------------------------- |
| 718 | |
| 719 | wxSize wxListBox::DoGetBestSize() const |
| 720 | { |
| 721 | // |
| 722 | // Find the widest string |
| 723 | // |
| 724 | int nLine; |
| 725 | int nListbox = 0; |
| 726 | int nCx; |
| 727 | int nCy; |
| 728 | |
| 729 | for (int i = 0; i < m_nNumItems; i++) |
| 730 | { |
| 731 | wxString vStr(GetString(i)); |
| 732 | |
| 733 | GetTextExtent( vStr |
| 734 | ,&nLine |
| 735 | ,NULL |
| 736 | ); |
| 737 | if (nLine > nListbox) |
| 738 | nListbox = nLine; |
| 739 | } |
| 740 | |
| 741 | // |
| 742 | // Give it some reasonable default value if there are no strings in the |
| 743 | // list. |
| 744 | // |
| 745 | if (nListbox == 0) |
| 746 | nListbox = 100; |
| 747 | |
| 748 | // |
| 749 | // The listbox should be slightly larger than the widest string |
| 750 | // |
| 751 | wxGetCharSize( GetHWND() |
| 752 | ,&nCx |
| 753 | ,&nCy |
| 754 | ,(wxFont*)&GetFont() |
| 755 | ); |
| 756 | nListbox += 3 * nCx; |
| 757 | |
| 758 | int hListbox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nCy) * (wxMax(m_nNumItems, 7)); |
| 759 | |
| 760 | return wxSize( nListbox |
| 761 | ,hListbox |
| 762 | ); |
| 763 | } // end of wxListBox::DoGetBestSize |
| 764 | |
| 765 | // ---------------------------------------------------------------------------- |
| 766 | // callbacks |
| 767 | // ---------------------------------------------------------------------------- |
| 768 | |
| 769 | bool wxListBox::OS2Command( |
| 770 | WXUINT uParam |
| 771 | , WXWORD WXUNUSED(wId)) |
| 772 | { |
| 773 | wxEventType eEvtType; |
| 774 | |
| 775 | if (uParam == LN_SELECT) |
| 776 | { |
| 777 | eEvtType = wxEVT_COMMAND_LISTBOX_SELECTED; |
| 778 | } |
| 779 | if (uParam == LN_ENTER) |
| 780 | { |
| 781 | eEvtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED; |
| 782 | } |
| 783 | else |
| 784 | { |
| 785 | // |
| 786 | // Some event we're not interested in |
| 787 | // |
| 788 | return FALSE; |
| 789 | } |
| 790 | wxCommandEvent vEvent( eEvtType |
| 791 | ,m_windowId |
| 792 | ); |
| 793 | |
| 794 | vEvent.SetEventObject(this); |
| 795 | |
| 796 | wxArrayInt aSelections; |
| 797 | int n; |
| 798 | int nCount = GetSelections(aSelections); |
| 799 | |
| 800 | if (nCount > 0) |
| 801 | { |
| 802 | n = aSelections[0]; |
| 803 | if (HasClientObjectData()) |
| 804 | vEvent.SetClientObject(GetClientObject(n)); |
| 805 | else if ( HasClientUntypedData() ) |
| 806 | vEvent.SetClientData(GetClientData(n)); |
| 807 | vEvent.SetString(GetString(n)); |
| 808 | } |
| 809 | else |
| 810 | { |
| 811 | n = -1; |
| 812 | } |
| 813 | vEvent.m_commandInt = n; |
| 814 | return GetEventHandler()->ProcessEvent(vEvent); |
| 815 | } // end of wxListBox::OS2Command |
| 816 | |
| 817 | // ---------------------------------------------------------------------------- |
| 818 | // wxCheckListBox support |
| 819 | // ---------------------------------------------------------------------------- |
| 820 | |
| 821 | #if wxUSE_OWNER_DRAWN |
| 822 | |
| 823 | // |
| 824 | // Drawing |
| 825 | // ------- |
| 826 | // |
| 827 | #define OWNER_DRAWN_LISTBOX_EXTRA_SPACE (1) |
| 828 | |
| 829 | long wxListBox::OS2OnMeasure( |
| 830 | WXMEASUREITEMSTRUCT* pItem |
| 831 | ) |
| 832 | { |
| 833 | if (!pItem) |
| 834 | pItem = (WXMEASUREITEMSTRUCT*)new OWNERITEM; |
| 835 | |
| 836 | POWNERITEM pMeasureStruct = (POWNERITEM)pItem; |
| 837 | wxScreenDC vDc; |
| 838 | |
| 839 | // |
| 840 | // Only owner-drawn control should receive this message |
| 841 | // |
| 842 | wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE ); |
| 843 | |
| 844 | vDc.SetFont(GetFont()); |
| 845 | |
| 846 | wxCoord vHeight; |
| 847 | wxCoord vWidth; |
| 848 | |
| 849 | GetSize( &vWidth |
| 850 | ,NULL |
| 851 | ); |
| 852 | |
| 853 | pMeasureStruct->rclItem.xRight = (USHORT)vWidth; |
| 854 | pMeasureStruct->rclItem.xLeft = 0; |
| 855 | pMeasureStruct->rclItem.yTop = 0; |
| 856 | pMeasureStruct->rclItem.yBottom = 0; |
| 857 | |
| 858 | vHeight = (wxCoord)(vDc.GetCharHeight() * 2.5); |
| 859 | pMeasureStruct->rclItem.yTop = (USHORT)vHeight; |
| 860 | |
| 861 | return long(MRFROM2SHORT((USHORT)vHeight, (USHORT)vWidth)); |
| 862 | } // end of wxListBox::OS2OnMeasure |
| 863 | |
| 864 | bool wxListBox::OS2OnDraw ( |
| 865 | WXDRAWITEMSTRUCT* pItem |
| 866 | ) |
| 867 | { |
| 868 | POWNERITEM pDrawStruct = (POWNERITEM)pItem; |
| 869 | LONG lItemID = pDrawStruct->idItem; |
| 870 | int eAction = 0; |
| 871 | int eStatus = 0; |
| 872 | |
| 873 | // |
| 874 | // Only owner-drawn control should receive this message |
| 875 | // |
| 876 | wxCHECK(((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE); |
| 877 | |
| 878 | |
| 879 | // |
| 880 | // The item may be -1 for an empty listbox |
| 881 | // |
| 882 | if (lItemID == -1L) |
| 883 | return FALSE; |
| 884 | |
| 885 | wxListBoxItem* pData = (wxListBoxItem*)PVOIDFROMMR( ::WinSendMsg( GetHwnd() |
| 886 | ,LM_QUERYITEMHANDLE |
| 887 | ,MPFROMLONG(pDrawStruct->idItem) |
| 888 | ,(MPARAM)0 |
| 889 | ) |
| 890 | ); |
| 891 | |
| 892 | wxCHECK(pData, FALSE ); |
| 893 | |
| 894 | wxDC vDc; |
| 895 | wxRect vRect( wxPoint( pDrawStruct->rclItem.xLeft |
| 896 | ,pDrawStruct->rclItem.yTop |
| 897 | ) |
| 898 | ,wxPoint( pDrawStruct->rclItem.xRight |
| 899 | ,pDrawStruct->rclItem.yBottom |
| 900 | ) |
| 901 | ); |
| 902 | |
| 903 | vDc.SetHPS(pDrawStruct->hps); |
| 904 | |
| 905 | if (pDrawStruct->fsAttribute == pDrawStruct->fsAttributeOld) |
| 906 | { |
| 907 | // |
| 908 | // Entire Item needs to be redrawn (either it has reappeared from |
| 909 | // behind another window or is being displayed for the first time |
| 910 | // |
| 911 | eAction = wxOwnerDrawn::wxODDrawAll; |
| 912 | |
| 913 | if (pDrawStruct->fsAttribute & MIA_HILITED) |
| 914 | { |
| 915 | // |
| 916 | // If it is currently selected we let the system handle it |
| 917 | // |
| 918 | eStatus |= wxOwnerDrawn::wxODSelected; |
| 919 | } |
| 920 | if (pDrawStruct->fsAttribute & MIA_CHECKED) |
| 921 | { |
| 922 | // |
| 923 | // If it is currently checked we draw our own |
| 924 | // |
| 925 | eStatus |= wxOwnerDrawn::wxODChecked; |
| 926 | pDrawStruct->fsAttributeOld = pDrawStruct->fsAttribute &= ~MIA_CHECKED; |
| 927 | } |
| 928 | if (pDrawStruct->fsAttribute & MIA_DISABLED) |
| 929 | { |
| 930 | // |
| 931 | // If it is currently disabled we let the system handle it |
| 932 | // |
| 933 | eStatus |= wxOwnerDrawn::wxODDisabled; |
| 934 | } |
| 935 | // |
| 936 | // Don't really care about framed (indicationg focus) or NoDismiss |
| 937 | // |
| 938 | } |
| 939 | else |
| 940 | { |
| 941 | if (pDrawStruct->fsAttribute & MIA_HILITED) |
| 942 | { |
| 943 | eAction = wxOwnerDrawn::wxODDrawAll; |
| 944 | eStatus |= wxOwnerDrawn::wxODSelected; |
| 945 | // |
| 946 | // Keep the system from trying to highlight with its bogus colors |
| 947 | // |
| 948 | pDrawStruct->fsAttributeOld = pDrawStruct->fsAttribute &= ~MIA_HILITED; |
| 949 | } |
| 950 | else if (!(pDrawStruct->fsAttribute & MIA_HILITED)) |
| 951 | { |
| 952 | eAction = wxOwnerDrawn::wxODDrawAll; |
| 953 | eStatus = 0; |
| 954 | // |
| 955 | // Keep the system from trying to highlight with its bogus colors |
| 956 | // |
| 957 | pDrawStruct->fsAttribute = pDrawStruct->fsAttributeOld &= ~MIA_HILITED; |
| 958 | } |
| 959 | else |
| 960 | { |
| 961 | // |
| 962 | // For now we don't care about anything else |
| 963 | // just ignore the entire message! |
| 964 | // |
| 965 | return TRUE; |
| 966 | } |
| 967 | } |
| 968 | return pData->OnDrawItem( vDc |
| 969 | ,vRect |
| 970 | ,(wxOwnerDrawn::wxODAction)eAction |
| 971 | ,(wxOwnerDrawn::wxODStatus)eStatus |
| 972 | ); |
| 973 | } // end of wxListBox::OS2OnDraw |
| 974 | |
| 975 | #endif // ndef for wxUSE_OWNER_DRAWN |
| 976 | |
| 977 | #endif // ndef for wxUSE_LISTBOX |
| 978 | |