| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/univ/combobox.cpp |
| 3 | // Purpose: wxComboBox implementation |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 15.12.00 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com) |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | #include "wx/wxprec.h" |
| 21 | |
| 22 | #ifdef __BORLANDC__ |
| 23 | #pragma hdrstop |
| 24 | #endif |
| 25 | |
| 26 | #if wxUSE_COMBOBOX |
| 27 | |
| 28 | #ifndef WX_PRECOMP |
| 29 | #include "wx/log.h" |
| 30 | |
| 31 | #include "wx/button.h" |
| 32 | #include "wx/combobox.h" |
| 33 | #include "wx/listbox.h" |
| 34 | #include "wx/textctrl.h" |
| 35 | #include "wx/bmpbuttn.h" |
| 36 | |
| 37 | #include "wx/validate.h" |
| 38 | #endif |
| 39 | |
| 40 | #include "wx/tooltip.h" |
| 41 | #include "wx/combo.h" |
| 42 | |
| 43 | #include "wx/univ/renderer.h" |
| 44 | #include "wx/univ/inphand.h" |
| 45 | #include "wx/univ/theme.h" |
| 46 | |
| 47 | // ---------------------------------------------------------------------------- |
| 48 | // wxStdComboBoxInputHandler: allows the user to open/close the combo from kbd |
| 49 | // ---------------------------------------------------------------------------- |
| 50 | |
| 51 | class WXDLLEXPORT wxStdComboBoxInputHandler : public wxStdInputHandler |
| 52 | { |
| 53 | public: |
| 54 | wxStdComboBoxInputHandler(wxInputHandler *inphand); |
| 55 | |
| 56 | virtual bool HandleKey(wxInputConsumer *consumer, |
| 57 | const wxKeyEvent& event, |
| 58 | bool pressed); |
| 59 | }; |
| 60 | |
| 61 | // ---------------------------------------------------------------------------- |
| 62 | // wxComboListBox is a listbox modified to be used as a popup window in a |
| 63 | // combobox |
| 64 | // ---------------------------------------------------------------------------- |
| 65 | |
| 66 | class wxComboListBox : public wxListBox, public wxComboPopup |
| 67 | { |
| 68 | public: |
| 69 | // ctor and dtor |
| 70 | wxComboListBox(); |
| 71 | virtual ~wxComboListBox(); |
| 72 | |
| 73 | // implement wxComboPopup methods |
| 74 | virtual bool Create(wxWindow* parent); |
| 75 | virtual void SetStringValue(const wxString& s); |
| 76 | virtual wxString GetStringValue() const; |
| 77 | virtual wxWindow *GetControl() { return this; } |
| 78 | virtual void OnPopup(); |
| 79 | virtual wxSize GetAdjustedSize(int minWidth, int prefHeight, int maxHeight); |
| 80 | |
| 81 | // fix virtual function hiding |
| 82 | virtual void SetSelection(int n) { DoSetSelection(n, true); } |
| 83 | void SetSelection(int n, bool select) { DoSetSelection(n, select); } |
| 84 | |
| 85 | // used to process wxUniv actions |
| 86 | bool PerformAction(const wxControlAction& action, |
| 87 | long numArg, |
| 88 | const wxString& strArg); |
| 89 | |
| 90 | protected: |
| 91 | // set m_clicked value from here |
| 92 | void OnLeftUp(wxMouseEvent& event); |
| 93 | |
| 94 | private: |
| 95 | friend class wxComboBox; // it accesses our DoGetItemClientData() |
| 96 | |
| 97 | DECLARE_EVENT_TABLE() |
| 98 | }; |
| 99 | |
| 100 | // ---------------------------------------------------------------------------- |
| 101 | // event tables and such |
| 102 | // ---------------------------------------------------------------------------- |
| 103 | |
| 104 | BEGIN_EVENT_TABLE(wxComboListBox, wxListBox) |
| 105 | EVT_LEFT_UP(wxComboListBox::OnLeftUp) |
| 106 | END_EVENT_TABLE() |
| 107 | |
| 108 | // ============================================================================ |
| 109 | // implementation |
| 110 | // ============================================================================ |
| 111 | |
| 112 | // ---------------------------------------------------------------------------- |
| 113 | // wxComboListBox |
| 114 | // ---------------------------------------------------------------------------- |
| 115 | |
| 116 | wxComboListBox::wxComboListBox() : wxListBox(), wxComboPopup() |
| 117 | { |
| 118 | } |
| 119 | |
| 120 | bool wxComboListBox::Create(wxWindow* parent) |
| 121 | { |
| 122 | if ( !wxListBox::Create(parent, wxID_ANY, |
| 123 | wxDefaultPosition, wxDefaultSize, |
| 124 | 0, NULL, |
| 125 | wxBORDER_SIMPLE | |
| 126 | ( m_combo->GetWindowStyle() & wxCB_SORT ? wxLB_SORT : 0 ) ) ) |
| 127 | return false; |
| 128 | |
| 129 | // we don't react to the mouse events outside the window at all |
| 130 | StopAutoScrolling(); |
| 131 | |
| 132 | return true; |
| 133 | } |
| 134 | |
| 135 | wxComboListBox::~wxComboListBox() |
| 136 | { |
| 137 | } |
| 138 | |
| 139 | wxString wxComboListBox::GetStringValue() const |
| 140 | { |
| 141 | return wxListBox::GetStringSelection(); |
| 142 | } |
| 143 | |
| 144 | void wxComboListBox::SetStringValue(const wxString& value) |
| 145 | { |
| 146 | if ( !value.empty() ) |
| 147 | { |
| 148 | if (FindString(value) != wxNOT_FOUND) |
| 149 | wxListBox::SetStringSelection(value); |
| 150 | } |
| 151 | else |
| 152 | wxListBox::SetSelection(-1); |
| 153 | } |
| 154 | |
| 155 | void wxComboListBox::OnPopup() |
| 156 | { |
| 157 | } |
| 158 | |
| 159 | bool wxComboListBox::PerformAction(const wxControlAction& action, |
| 160 | long numArg, |
| 161 | const wxString& strArg) |
| 162 | |
| 163 | { |
| 164 | if ( action == wxACTION_LISTBOX_FIND ) |
| 165 | { |
| 166 | // we don't let the listbox handle this as instead of just using the |
| 167 | // single key presses, as usual, we use the text ctrl value as prefix |
| 168 | // and this is done by wxComboCtrl itself |
| 169 | return true; |
| 170 | } |
| 171 | |
| 172 | return wxListBox::PerformAction(action, numArg, strArg); |
| 173 | } |
| 174 | |
| 175 | void wxComboListBox::OnLeftUp(wxMouseEvent& event) |
| 176 | { |
| 177 | // we should dismiss the combo now |
| 178 | // first update the combo and close the listbox |
| 179 | Dismiss(); |
| 180 | m_combo->SetValue(wxListBox::GetStringSelection()); |
| 181 | |
| 182 | // next let the user code have the event |
| 183 | wxCommandEvent evt(wxEVT_COMMAND_COMBOBOX_SELECTED,m_combo->GetId()); |
| 184 | evt.SetInt(wxListBox::GetSelection()); |
| 185 | evt.SetEventObject(m_combo); |
| 186 | m_combo->ProcessWindowEvent(evt); |
| 187 | |
| 188 | event.Skip(); |
| 189 | } |
| 190 | |
| 191 | wxSize wxComboListBox::GetAdjustedSize(int minWidth, |
| 192 | int WXUNUSED(prefHeight), |
| 193 | int maxHeight) |
| 194 | { |
| 195 | wxSize bestSize = wxListBox::GetBestSize(); |
| 196 | return wxSize(wxMax(bestSize.x,minWidth), |
| 197 | wxMin(bestSize.y,maxHeight)); |
| 198 | } |
| 199 | |
| 200 | // ---------------------------------------------------------------------------- |
| 201 | // wxComboBox |
| 202 | // ---------------------------------------------------------------------------- |
| 203 | |
| 204 | void wxComboBox::Init() |
| 205 | { |
| 206 | m_lbox = NULL; |
| 207 | } |
| 208 | |
| 209 | wxComboBox::wxComboBox(wxWindow *parent, |
| 210 | wxWindowID id, |
| 211 | const wxString& value, |
| 212 | const wxPoint& pos, |
| 213 | const wxSize& size, |
| 214 | const wxArrayString& choices, |
| 215 | long style, |
| 216 | const wxValidator& validator, |
| 217 | const wxString& name) |
| 218 | { |
| 219 | Init(); |
| 220 | |
| 221 | Create(parent, id, value, pos, size, choices, style, validator, name); |
| 222 | } |
| 223 | |
| 224 | bool wxComboBox::Create(wxWindow *parent, |
| 225 | wxWindowID id, |
| 226 | const wxString& value, |
| 227 | const wxPoint& pos, |
| 228 | const wxSize& size, |
| 229 | const wxArrayString& choices, |
| 230 | long style, |
| 231 | const wxValidator& validator, |
| 232 | const wxString& name) |
| 233 | { |
| 234 | wxCArrayString chs(choices); |
| 235 | |
| 236 | return Create(parent, id, value, pos, size, chs.GetCount(), |
| 237 | chs.GetStrings(), style, validator, name); |
| 238 | } |
| 239 | |
| 240 | bool wxComboBox::Create(wxWindow *parent, |
| 241 | wxWindowID id, |
| 242 | const wxString& value, |
| 243 | const wxPoint& pos, |
| 244 | const wxSize& size, |
| 245 | int n, |
| 246 | const wxString choices[], |
| 247 | long style, |
| 248 | const wxValidator& validator, |
| 249 | const wxString& name) |
| 250 | { |
| 251 | if ( !wxComboCtrl::Create(parent, id, value, pos, size, style, |
| 252 | validator, name) ) |
| 253 | { |
| 254 | return false; |
| 255 | } |
| 256 | |
| 257 | wxComboListBox *combolbox = new wxComboListBox(); |
| 258 | SetPopupControl(combolbox); |
| 259 | |
| 260 | m_lbox = combolbox; |
| 261 | m_lbox->Set(n, choices); |
| 262 | |
| 263 | return true; |
| 264 | } |
| 265 | |
| 266 | wxComboBox::~wxComboBox() |
| 267 | { |
| 268 | } |
| 269 | |
| 270 | // ---------------------------------------------------------------------------- |
| 271 | // wxComboBox methods forwarded to wxTextCtrl |
| 272 | // ---------------------------------------------------------------------------- |
| 273 | |
| 274 | wxString wxComboBox::DoGetValue() const |
| 275 | { |
| 276 | return GetTextCtrl() ? GetTextCtrl()->GetValue() : m_valueString; |
| 277 | } |
| 278 | |
| 279 | void wxComboBox::SetValue(const wxString& value) |
| 280 | { |
| 281 | if ( GetTextCtrl() ) |
| 282 | GetTextCtrl()->SetValue(value); |
| 283 | else |
| 284 | m_valueString = value; |
| 285 | } |
| 286 | |
| 287 | void wxComboBox::WriteText(const wxString& value) |
| 288 | { |
| 289 | if ( GetTextCtrl() ) GetTextCtrl()->WriteText(value); |
| 290 | } |
| 291 | |
| 292 | void wxComboBox::Copy() |
| 293 | { |
| 294 | if ( GetTextCtrl() ) GetTextCtrl()->Copy(); |
| 295 | } |
| 296 | |
| 297 | void wxComboBox::Cut() |
| 298 | { |
| 299 | if ( GetTextCtrl() ) GetTextCtrl()->Cut(); |
| 300 | } |
| 301 | |
| 302 | void wxComboBox::Paste() |
| 303 | { |
| 304 | if ( GetTextCtrl() ) GetTextCtrl()->Paste(); |
| 305 | } |
| 306 | |
| 307 | void wxComboBox::SetInsertionPoint(long pos) |
| 308 | { |
| 309 | if ( GetTextCtrl() ) GetTextCtrl()->SetInsertionPoint(pos); |
| 310 | } |
| 311 | |
| 312 | void wxComboBox::SetInsertionPointEnd() |
| 313 | { |
| 314 | if ( GetTextCtrl() ) GetTextCtrl()->SetInsertionPointEnd(); |
| 315 | } |
| 316 | |
| 317 | long wxComboBox::GetInsertionPoint() const |
| 318 | { |
| 319 | if ( GetTextCtrl() ) |
| 320 | return GetTextCtrl()->GetInsertionPoint(); |
| 321 | return -1; |
| 322 | } |
| 323 | |
| 324 | wxTextPos wxComboBox::GetLastPosition() const |
| 325 | { |
| 326 | if ( GetTextCtrl() ) |
| 327 | return GetTextCtrl()->GetLastPosition(); |
| 328 | return -1; |
| 329 | } |
| 330 | |
| 331 | void wxComboBox::Replace(long from, long to, const wxString& value) |
| 332 | { |
| 333 | if ( GetTextCtrl() ) GetTextCtrl()->Replace(from, to, value); |
| 334 | } |
| 335 | |
| 336 | void wxComboBox::Remove(long from, long to) |
| 337 | { |
| 338 | if ( GetTextCtrl() ) GetTextCtrl()->Remove(from, to); |
| 339 | } |
| 340 | |
| 341 | void wxComboBox::SetSelection(long from, long to) |
| 342 | { |
| 343 | if ( GetTextCtrl() ) GetTextCtrl()->SetSelection(from, to); |
| 344 | } |
| 345 | |
| 346 | void wxComboBox::GetSelection(long *from, long *to) const |
| 347 | { |
| 348 | if ( GetTextCtrl() ) GetTextCtrl()->GetSelection(from, to); |
| 349 | } |
| 350 | |
| 351 | void wxComboBox::SetEditable(bool editable) |
| 352 | { |
| 353 | if ( GetTextCtrl() ) GetTextCtrl()->SetEditable(editable); |
| 354 | } |
| 355 | |
| 356 | // ---------------------------------------------------------------------------- |
| 357 | // wxComboBox methods forwarded to wxListBox |
| 358 | // ---------------------------------------------------------------------------- |
| 359 | |
| 360 | void wxComboBox::DoClear() |
| 361 | { |
| 362 | GetLBox()->Clear(); |
| 363 | SetValue(wxEmptyString); |
| 364 | } |
| 365 | |
| 366 | void wxComboBox::DoDeleteOneItem(unsigned int n) |
| 367 | { |
| 368 | wxCHECK_RET( IsValid(n), wxT("invalid index in wxComboBox::Delete") ); |
| 369 | |
| 370 | if (GetSelection() == (int)n) |
| 371 | SetValue(wxEmptyString); |
| 372 | |
| 373 | GetLBox()->Delete(n); |
| 374 | } |
| 375 | |
| 376 | unsigned int wxComboBox::GetCount() const |
| 377 | { |
| 378 | return GetLBox()->GetCount(); |
| 379 | } |
| 380 | |
| 381 | wxString wxComboBox::GetString(unsigned int n) const |
| 382 | { |
| 383 | wxCHECK_MSG( IsValid(n), wxEmptyString, wxT("invalid index in wxComboBox::GetString") ); |
| 384 | |
| 385 | return GetLBox()->GetString(n); |
| 386 | } |
| 387 | |
| 388 | void wxComboBox::SetString(unsigned int n, const wxString& s) |
| 389 | { |
| 390 | wxCHECK_RET( IsValid(n), wxT("invalid index in wxComboBox::SetString") ); |
| 391 | |
| 392 | GetLBox()->SetString(n, s); |
| 393 | } |
| 394 | |
| 395 | int wxComboBox::FindString(const wxString& s, bool bCase) const |
| 396 | { |
| 397 | return GetLBox()->FindString(s, bCase); |
| 398 | } |
| 399 | |
| 400 | void wxComboBox::SetSelection(int n) |
| 401 | { |
| 402 | wxCHECK_RET( (n == wxNOT_FOUND || IsValid(n)), wxT("invalid index in wxComboBox::Select") ); |
| 403 | |
| 404 | GetLBox()->SetSelection(n); |
| 405 | |
| 406 | wxString str; |
| 407 | if ( n != wxNOT_FOUND ) |
| 408 | str = GetLBox()->GetString(n); |
| 409 | |
| 410 | SetText(str); |
| 411 | } |
| 412 | |
| 413 | int wxComboBox::GetSelection() const |
| 414 | { |
| 415 | #if 1 // FIXME:: What is the correct behaviour? |
| 416 | // if the current value isn't one of the listbox strings, return -1 |
| 417 | return GetLBox()->GetSelection(); |
| 418 | #else |
| 419 | // Why oh why is this done this way? |
| 420 | // It is not because the value displayed in the text can be found |
| 421 | // in the list that it is the item that is selected! |
| 422 | return FindString(if ( GetTextCtrl() ) GetTextCtrl()->GetValue()); |
| 423 | #endif |
| 424 | } |
| 425 | |
| 426 | wxString wxComboBox::GetStringSelection() const |
| 427 | { |
| 428 | return GetLBox()->GetStringSelection(); |
| 429 | } |
| 430 | |
| 431 | wxClientDataType wxComboBox::GetClientDataType() const |
| 432 | { |
| 433 | return GetLBox()->GetClientDataType(); |
| 434 | } |
| 435 | |
| 436 | void wxComboBox::SetClientDataType(wxClientDataType clientDataItemsType) |
| 437 | { |
| 438 | GetLBox()->SetClientDataType(clientDataItemsType); |
| 439 | } |
| 440 | |
| 441 | int wxComboBox::DoInsertItems(const wxArrayStringsAdapter & items, |
| 442 | unsigned int pos, |
| 443 | void **clientData, wxClientDataType type) |
| 444 | { |
| 445 | return GetLBox()->DoInsertItems(items, pos, clientData, type); |
| 446 | } |
| 447 | |
| 448 | void wxComboBox::DoSetItemClientData(unsigned int n, void* clientData) |
| 449 | { |
| 450 | GetLBox()->DoSetItemClientData(n, clientData); |
| 451 | } |
| 452 | |
| 453 | void *wxComboBox::DoGetItemClientData(unsigned int n) const |
| 454 | { |
| 455 | return GetLBox()->DoGetItemClientData(n); |
| 456 | } |
| 457 | |
| 458 | bool wxComboBox::IsEditable() const |
| 459 | { |
| 460 | return GetTextCtrl() != NULL && (!HasFlag(wxCB_READONLY) || GetTextCtrl()->IsEditable() ); |
| 461 | } |
| 462 | |
| 463 | void wxComboBox::Undo() |
| 464 | { |
| 465 | if (IsEditable()) |
| 466 | if ( GetTextCtrl() ) GetTextCtrl()->Undo(); |
| 467 | } |
| 468 | |
| 469 | void wxComboBox::Redo() |
| 470 | { |
| 471 | if (IsEditable()) |
| 472 | if ( GetTextCtrl() ) GetTextCtrl()->Redo(); |
| 473 | } |
| 474 | |
| 475 | void wxComboBox::SelectAll() |
| 476 | { |
| 477 | if ( GetTextCtrl() ) GetTextCtrl()->SelectAll(); |
| 478 | } |
| 479 | |
| 480 | bool wxComboBox::CanCopy() const |
| 481 | { |
| 482 | if (GetTextCtrl() != NULL) |
| 483 | return GetTextCtrl()->CanCopy(); |
| 484 | else |
| 485 | return false; |
| 486 | } |
| 487 | |
| 488 | bool wxComboBox::CanCut() const |
| 489 | { |
| 490 | if (GetTextCtrl() != NULL) |
| 491 | return GetTextCtrl()->CanCut(); |
| 492 | else |
| 493 | return false; |
| 494 | } |
| 495 | |
| 496 | bool wxComboBox::CanPaste() const |
| 497 | { |
| 498 | if (IsEditable()) |
| 499 | return GetTextCtrl()->CanPaste(); |
| 500 | else |
| 501 | return false; |
| 502 | } |
| 503 | |
| 504 | bool wxComboBox::CanUndo() const |
| 505 | { |
| 506 | if (IsEditable()) |
| 507 | return GetTextCtrl()->CanUndo(); |
| 508 | else |
| 509 | return false; |
| 510 | } |
| 511 | |
| 512 | bool wxComboBox::CanRedo() const |
| 513 | { |
| 514 | if (IsEditable()) |
| 515 | return GetTextCtrl()->CanRedo(); |
| 516 | else |
| 517 | return false; |
| 518 | } |
| 519 | |
| 520 | |
| 521 | // ---------------------------------------------------------------------------- |
| 522 | // wxStdComboBoxInputHandler |
| 523 | // ---------------------------------------------------------------------------- |
| 524 | |
| 525 | wxStdComboBoxInputHandler::wxStdComboBoxInputHandler(wxInputHandler *inphand) |
| 526 | : wxStdInputHandler(inphand) |
| 527 | { |
| 528 | } |
| 529 | |
| 530 | bool wxStdComboBoxInputHandler::HandleKey(wxInputConsumer *consumer, |
| 531 | const wxKeyEvent& event, |
| 532 | bool pressed) |
| 533 | { |
| 534 | if ( pressed ) |
| 535 | { |
| 536 | wxControlAction action; |
| 537 | switch ( event.GetKeyCode() ) |
| 538 | { |
| 539 | case WXK_DOWN: |
| 540 | action = wxACTION_COMBOBOX_POPUP; |
| 541 | break; |
| 542 | |
| 543 | case WXK_ESCAPE: |
| 544 | action = wxACTION_COMBOBOX_DISMISS; |
| 545 | break; |
| 546 | } |
| 547 | |
| 548 | if ( !action.IsEmpty() ) |
| 549 | { |
| 550 | consumer->PerformAction(action); |
| 551 | |
| 552 | return true; |
| 553 | } |
| 554 | } |
| 555 | |
| 556 | return wxStdInputHandler::HandleKey(consumer, event, pressed); |
| 557 | } |
| 558 | |
| 559 | /* static */ |
| 560 | wxInputHandler *wxComboBox::GetStdInputHandler(wxInputHandler *handlerDef) |
| 561 | { |
| 562 | static wxStdComboBoxInputHandler s_handler(handlerDef); |
| 563 | |
| 564 | return &s_handler; |
| 565 | } |
| 566 | |
| 567 | #endif // wxUSE_COMBOBOX |