| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: combobox.cpp |
| 3 | // Purpose: wxComboBox class |
| 4 | // Author: AUTHOR |
| 5 | // Modified by: |
| 6 | // Created: ??/??/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) AUTHOR |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifdef __GNUG__ |
| 13 | #pragma implementation "combobox.h" |
| 14 | #endif |
| 15 | |
| 16 | #include "wx/combobox.h" |
| 17 | #include "wx/button.h" |
| 18 | #include "wx/menu.h" |
| 19 | #include "wx/mac/uma.h" |
| 20 | |
| 21 | #if !USE_SHARED_LIBRARY |
| 22 | IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl) |
| 23 | #endif |
| 24 | |
| 25 | // composite combobox implementation by Dan "Bud" Keith bud@otsys.com |
| 26 | |
| 27 | |
| 28 | static int nextPopUpMenuId = 1000 ; |
| 29 | MenuHandle NewUniqueMenu() |
| 30 | { |
| 31 | MenuHandle handle = NewMenu( nextPopUpMenuId , "\pMenu" ) ; |
| 32 | nextPopUpMenuId++ ; |
| 33 | return handle ; |
| 34 | } |
| 35 | |
| 36 | |
| 37 | // ---------------------------------------------------------------------------- |
| 38 | // constants |
| 39 | // ---------------------------------------------------------------------------- |
| 40 | |
| 41 | // the margin between the text control and the choice |
| 42 | static const wxCoord MARGIN = 2; |
| 43 | static const int POPUPWIDTH = 18; |
| 44 | static const int POPUPHEIGHT = 23; |
| 45 | |
| 46 | |
| 47 | // ---------------------------------------------------------------------------- |
| 48 | // wxComboBoxText: text control forwards events to combobox |
| 49 | // ---------------------------------------------------------------------------- |
| 50 | |
| 51 | class wxComboBoxText : public wxTextCtrl |
| 52 | { |
| 53 | public: |
| 54 | wxComboBoxText( wxComboBox * cb ) |
| 55 | : wxTextCtrl( cb , 1 ) |
| 56 | { |
| 57 | m_cb = cb; |
| 58 | } |
| 59 | |
| 60 | protected: |
| 61 | void OnChar( wxKeyEvent& event ) |
| 62 | { |
| 63 | if ( event.KeyCode() == WXK_RETURN ) |
| 64 | { |
| 65 | wxString value = GetValue(); |
| 66 | |
| 67 | if ( m_cb->GetCount() == 0 ) |
| 68 | { |
| 69 | // make Enter generate "selected" event if there is only one item |
| 70 | // in the combobox - without it, it's impossible to select it at |
| 71 | // all! |
| 72 | wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() ); |
| 73 | event.SetInt( 0 ); |
| 74 | event.SetString( value ); |
| 75 | event.SetEventObject( m_cb ); |
| 76 | m_cb->GetEventHandler()->ProcessEvent( event ); |
| 77 | } |
| 78 | else |
| 79 | { |
| 80 | // add the item to the list if it's not there yet |
| 81 | if ( m_cb->FindString(value) == wxNOT_FOUND ) |
| 82 | { |
| 83 | m_cb->Append(value); |
| 84 | m_cb->SetStringSelection(value); |
| 85 | |
| 86 | // and generate the selected event for it |
| 87 | wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() ); |
| 88 | event.SetInt( m_cb->GetCount() - 1 ); |
| 89 | event.SetString( value ); |
| 90 | event.SetEventObject( m_cb ); |
| 91 | m_cb->GetEventHandler()->ProcessEvent( event ); |
| 92 | } |
| 93 | |
| 94 | // This will invoke the dialog default action, such |
| 95 | // as the clicking the default button. |
| 96 | |
| 97 | wxWindow *parent = GetParent(); |
| 98 | while( parent && !parent->IsTopLevel() && parent->GetDefaultItem() == NULL ) { |
| 99 | parent = parent->GetParent() ; |
| 100 | } |
| 101 | if ( parent && parent->GetDefaultItem() ) |
| 102 | { |
| 103 | wxButton *def = wxDynamicCast(parent->GetDefaultItem(), |
| 104 | wxButton); |
| 105 | if ( def && def->IsEnabled() ) |
| 106 | { |
| 107 | wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, def->GetId() ); |
| 108 | event.SetEventObject(def); |
| 109 | def->Command(event); |
| 110 | return ; |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | return; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | event.Skip(); |
| 119 | } |
| 120 | |
| 121 | private: |
| 122 | wxComboBox *m_cb; |
| 123 | |
| 124 | DECLARE_EVENT_TABLE() |
| 125 | }; |
| 126 | |
| 127 | BEGIN_EVENT_TABLE(wxComboBoxText, wxTextCtrl) |
| 128 | EVT_CHAR( wxComboBoxText::OnChar) |
| 129 | END_EVENT_TABLE() |
| 130 | |
| 131 | class wxComboBoxChoice : public wxChoice |
| 132 | { |
| 133 | public: |
| 134 | wxComboBoxChoice(wxComboBox *cb, int style) |
| 135 | : wxChoice( cb , 1 ) |
| 136 | { |
| 137 | m_cb = cb; |
| 138 | } |
| 139 | |
| 140 | protected: |
| 141 | void OnChoice( wxCommandEvent& e ) |
| 142 | { |
| 143 | wxString s = e.GetString(); |
| 144 | |
| 145 | m_cb->DelegateChoice( s ); |
| 146 | wxCommandEvent event2(wxEVT_COMMAND_COMBOBOX_SELECTED, m_cb->GetId() ); |
| 147 | event2.SetInt(m_cb->GetSelection()); |
| 148 | event2.SetEventObject(m_cb); |
| 149 | event2.SetString(m_cb->GetStringSelection()); |
| 150 | m_cb->ProcessCommand(event2); |
| 151 | } |
| 152 | |
| 153 | private: |
| 154 | wxComboBox *m_cb; |
| 155 | |
| 156 | DECLARE_EVENT_TABLE() |
| 157 | }; |
| 158 | |
| 159 | BEGIN_EVENT_TABLE(wxComboBoxChoice, wxChoice) |
| 160 | EVT_CHOICE(-1, wxComboBoxChoice::OnChoice) |
| 161 | END_EVENT_TABLE() |
| 162 | |
| 163 | wxComboBox::~wxComboBox() |
| 164 | { |
| 165 | // delete the controls now, don't leave them alive even though they would |
| 166 | // still be eventually deleted by our parent - but it will be too late, the |
| 167 | // user code expects them to be gone now |
| 168 | if (m_text != NULL) { |
| 169 | delete m_text; |
| 170 | m_text = NULL; |
| 171 | } |
| 172 | if (m_choice != NULL) { |
| 173 | delete m_choice; |
| 174 | m_choice = NULL; |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | |
| 179 | // ---------------------------------------------------------------------------- |
| 180 | // geometry |
| 181 | // ---------------------------------------------------------------------------- |
| 182 | |
| 183 | wxSize wxComboBox::DoGetBestSize() const |
| 184 | { |
| 185 | wxSize size = m_choice->GetBestSize(); |
| 186 | |
| 187 | if ( m_text != NULL ) |
| 188 | { |
| 189 | wxSize sizeText = m_text->GetBestSize(); |
| 190 | |
| 191 | size.x = POPUPWIDTH + sizeText.x + MARGIN; |
| 192 | } |
| 193 | |
| 194 | return size; |
| 195 | } |
| 196 | |
| 197 | void wxComboBox::DoMoveWindow(int x, int y, int width, int height) { |
| 198 | height = POPUPHEIGHT; |
| 199 | |
| 200 | wxControl::DoMoveWindow(x, y, width, height); |
| 201 | |
| 202 | if ( m_text == NULL ) |
| 203 | { |
| 204 | m_choice->SetSize(0, 0 , width, -1); |
| 205 | } |
| 206 | else |
| 207 | { |
| 208 | wxCoord wText = width - POPUPWIDTH; |
| 209 | m_text->SetSize(0, 0, wText, height); |
| 210 | m_choice->SetSize(0 + wText + MARGIN, 0, POPUPWIDTH, -1); |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | |
| 215 | |
| 216 | // ---------------------------------------------------------------------------- |
| 217 | // operations forwarded to the subcontrols |
| 218 | // ---------------------------------------------------------------------------- |
| 219 | |
| 220 | bool wxComboBox::Enable(bool enable) |
| 221 | { |
| 222 | if ( !wxControl::Enable(enable) ) |
| 223 | return FALSE; |
| 224 | |
| 225 | return TRUE; |
| 226 | } |
| 227 | |
| 228 | bool wxComboBox::Show(bool show) |
| 229 | { |
| 230 | if ( !wxControl::Show(show) ) |
| 231 | return FALSE; |
| 232 | |
| 233 | return TRUE; |
| 234 | } |
| 235 | |
| 236 | void wxComboBox::SetFocus() |
| 237 | { |
| 238 | if ( m_text != NULL) { |
| 239 | m_text->SetFocus(); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | |
| 244 | void wxComboBox::DelegateTextChanged( const wxString& value ) |
| 245 | { |
| 246 | SetStringSelection( value ); |
| 247 | } |
| 248 | |
| 249 | |
| 250 | void wxComboBox::DelegateChoice( const wxString& value ) |
| 251 | { |
| 252 | SetStringSelection( value ); |
| 253 | } |
| 254 | |
| 255 | |
| 256 | bool wxComboBox::Create(wxWindow *parent, wxWindowID id, |
| 257 | const wxString& value, |
| 258 | const wxPoint& pos, |
| 259 | const wxSize& size, |
| 260 | int n, const wxString choices[], |
| 261 | long style, |
| 262 | const wxValidator& validator, |
| 263 | const wxString& name) |
| 264 | { |
| 265 | if ( !wxControl::Create(parent, id, wxDefaultPosition, wxDefaultSize, style , |
| 266 | wxDefaultValidator, name) ) |
| 267 | { |
| 268 | return FALSE; |
| 269 | } |
| 270 | |
| 271 | m_choice = new wxComboBoxChoice(this, style ); |
| 272 | |
| 273 | wxSize csize = size; |
| 274 | if ( style & wxCB_READONLY ) |
| 275 | { |
| 276 | m_text = NULL; |
| 277 | } |
| 278 | else |
| 279 | { |
| 280 | m_text = new wxComboBoxText(this); |
| 281 | if ( size.y == -1 ) { |
| 282 | csize.y = m_text->GetSize().y ; |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | DoSetSize(pos.x, pos.y, csize.x, csize.y); |
| 287 | |
| 288 | for ( int i = 0 ; i < n ; i++ ) |
| 289 | { |
| 290 | m_choice->DoAppend( choices[ i ] ); |
| 291 | } |
| 292 | |
| 293 | return TRUE; |
| 294 | } |
| 295 | |
| 296 | wxString wxComboBox::GetValue() const |
| 297 | { |
| 298 | wxString result; |
| 299 | |
| 300 | if ( m_text == NULL ) |
| 301 | { |
| 302 | result = m_choice->GetString( m_choice->GetSelection() ); |
| 303 | } |
| 304 | else |
| 305 | { |
| 306 | result = m_text->GetValue(); |
| 307 | } |
| 308 | |
| 309 | return result; |
| 310 | } |
| 311 | |
| 312 | void wxComboBox::SetValue(const wxString& value) |
| 313 | { |
| 314 | SetStringSelection( value ) ; |
| 315 | } |
| 316 | |
| 317 | // Clipboard operations |
| 318 | void wxComboBox::Copy() |
| 319 | { |
| 320 | if ( m_text != NULL ) |
| 321 | { |
| 322 | m_text->Copy(); |
| 323 | } |
| 324 | } |
| 325 | |
| 326 | void wxComboBox::Cut() |
| 327 | { |
| 328 | if ( m_text != NULL ) |
| 329 | { |
| 330 | m_text->Cut(); |
| 331 | } |
| 332 | } |
| 333 | |
| 334 | void wxComboBox::Paste() |
| 335 | { |
| 336 | if ( m_text != NULL ) |
| 337 | { |
| 338 | m_text->Paste(); |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | void wxComboBox::SetEditable(bool editable) |
| 343 | { |
| 344 | if ( ( m_text == NULL ) && editable ) |
| 345 | { |
| 346 | m_text = new wxComboBoxText( this ); |
| 347 | } |
| 348 | else if ( ( m_text != NULL ) && !editable ) |
| 349 | { |
| 350 | delete m_text; |
| 351 | m_text = NULL; |
| 352 | } |
| 353 | |
| 354 | int currentX, currentY; |
| 355 | GetPosition( ¤tX, ¤tY ); |
| 356 | |
| 357 | int currentW, currentH; |
| 358 | GetSize( ¤tW, ¤tH ); |
| 359 | |
| 360 | DoMoveWindow( currentX, currentY, currentW, currentH ); |
| 361 | } |
| 362 | |
| 363 | void wxComboBox::SetInsertionPoint(long pos) |
| 364 | { |
| 365 | // TODO |
| 366 | } |
| 367 | |
| 368 | void wxComboBox::SetInsertionPointEnd() |
| 369 | { |
| 370 | // TODO |
| 371 | } |
| 372 | |
| 373 | long wxComboBox::GetInsertionPoint() const |
| 374 | { |
| 375 | // TODO |
| 376 | return 0; |
| 377 | } |
| 378 | |
| 379 | long wxComboBox::GetLastPosition() const |
| 380 | { |
| 381 | // TODO |
| 382 | return 0; |
| 383 | } |
| 384 | |
| 385 | void wxComboBox::Replace(long from, long to, const wxString& value) |
| 386 | { |
| 387 | // TODO |
| 388 | } |
| 389 | |
| 390 | void wxComboBox::Remove(long from, long to) |
| 391 | { |
| 392 | // TODO |
| 393 | } |
| 394 | |
| 395 | void wxComboBox::SetSelection(long from, long to) |
| 396 | { |
| 397 | // TODO |
| 398 | } |
| 399 | |
| 400 | void wxComboBox::Append(const wxString& item) |
| 401 | { |
| 402 | // I am not sure what other ports do, |
| 403 | // but wxMac chokes on empty entries. |
| 404 | |
| 405 | if (!item.IsEmpty()) |
| 406 | m_choice->DoAppend( item ); |
| 407 | } |
| 408 | |
| 409 | void wxComboBox::Delete(int n) |
| 410 | { |
| 411 | m_choice->Delete( n ); |
| 412 | } |
| 413 | |
| 414 | void wxComboBox::Clear() |
| 415 | { |
| 416 | m_choice->Clear(); |
| 417 | } |
| 418 | |
| 419 | int wxComboBox::GetSelection() const |
| 420 | { |
| 421 | return m_choice->GetSelection(); |
| 422 | } |
| 423 | |
| 424 | void wxComboBox::SetSelection(int n) |
| 425 | { |
| 426 | m_choice->SetSelection( n ); |
| 427 | |
| 428 | if ( m_text != NULL ) |
| 429 | { |
| 430 | m_text->SetValue( GetString( n ) ); |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | int wxComboBox::FindString(const wxString& s) const |
| 435 | { |
| 436 | return m_choice->FindString( s ); |
| 437 | } |
| 438 | |
| 439 | wxString wxComboBox::GetString(int n) const |
| 440 | { |
| 441 | return m_choice->GetString( n ); |
| 442 | } |
| 443 | |
| 444 | wxString wxComboBox::GetStringSelection() const |
| 445 | { |
| 446 | int sel = GetSelection (); |
| 447 | if (sel > -1) |
| 448 | return wxString(this->GetString (sel)); |
| 449 | else |
| 450 | return wxString(""); |
| 451 | } |
| 452 | |
| 453 | bool wxComboBox::SetStringSelection(const wxString& sel) |
| 454 | { |
| 455 | int s = FindString (sel); |
| 456 | if (s > -1) |
| 457 | { |
| 458 | SetSelection (s); |
| 459 | return TRUE; |
| 460 | } |
| 461 | else |
| 462 | return FALSE; |
| 463 | } |
| 464 | |
| 465 | void wxComboBox::MacHandleControlClick( WXWidget control , wxInt16 controlpart ) |
| 466 | { |
| 467 | wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId ); |
| 468 | event.SetInt(GetSelection()); |
| 469 | event.SetEventObject(this); |
| 470 | event.SetString(GetStringSelection()); |
| 471 | ProcessCommand(event); |
| 472 | } |
| 473 | |