| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: combobox.cpp |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // Id: $Id$ |
| 6 | // Copyright: (c) 1998 Robert Roebling |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 11 | #pragma implementation "combobox.h" |
| 12 | #endif |
| 13 | |
| 14 | // For compilers that support precompilation, includes "wx.h". |
| 15 | #include "wx/wxprec.h" |
| 16 | |
| 17 | #include "wx/combobox.h" |
| 18 | |
| 19 | #if wxUSE_COMBOBOX |
| 20 | |
| 21 | #include "wx/settings.h" |
| 22 | #include "wx/arrstr.h" |
| 23 | #include "wx/intl.h" |
| 24 | |
| 25 | #include "wx/textctrl.h" // for wxEVT_COMMAND_TEXT_UPDATED |
| 26 | |
| 27 | #include "wx/gtk/private.h" |
| 28 | |
| 29 | //----------------------------------------------------------------------------- |
| 30 | // idle system |
| 31 | //----------------------------------------------------------------------------- |
| 32 | |
| 33 | extern void wxapp_install_idle_handler(); |
| 34 | extern bool g_isIdle; |
| 35 | |
| 36 | //----------------------------------------------------------------------------- |
| 37 | // data |
| 38 | //----------------------------------------------------------------------------- |
| 39 | |
| 40 | extern bool g_blockEventsOnDrag; |
| 41 | |
| 42 | //----------------------------------------------------------------------------- |
| 43 | // "changed" - typing and list item matches get changed, select-child |
| 44 | // if it doesn't match an item then just get a single changed |
| 45 | //----------------------------------------------------------------------------- |
| 46 | |
| 47 | static void |
| 48 | gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo ) |
| 49 | { |
| 50 | if (g_isIdle) wxapp_install_idle_handler(); |
| 51 | |
| 52 | if (combo->m_ignoreNextUpdate) |
| 53 | { |
| 54 | combo->m_ignoreNextUpdate = FALSE; |
| 55 | return; |
| 56 | } |
| 57 | |
| 58 | if (!combo->m_hasVMT) return; |
| 59 | |
| 60 | wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() ); |
| 61 | event.SetString( combo->GetValue() ); |
| 62 | event.SetEventObject( combo ); |
| 63 | combo->GetEventHandler()->ProcessEvent( event ); |
| 64 | } |
| 65 | |
| 66 | static void |
| 67 | gtk_dummy_callback(GtkEntry *WXUNUSED(entry), GtkCombo *WXUNUSED(combo)) |
| 68 | { |
| 69 | } |
| 70 | |
| 71 | //----------------------------------------------------------------------------- |
| 72 | // "select-child" - click/cursor get select-child, changed, select-child |
| 73 | //----------------------------------------------------------------------------- |
| 74 | |
| 75 | static void |
| 76 | gtk_combo_select_child_callback( GtkList *WXUNUSED(list), GtkWidget *WXUNUSED(widget), wxComboBox *combo ) |
| 77 | { |
| 78 | if (g_isIdle) wxapp_install_idle_handler(); |
| 79 | |
| 80 | if (!combo->m_hasVMT) return; |
| 81 | |
| 82 | if (g_blockEventsOnDrag) return; |
| 83 | |
| 84 | int curSelection = combo->GetSelection(); |
| 85 | |
| 86 | if (combo->m_prevSelection == curSelection) return; |
| 87 | |
| 88 | GtkWidget *list = GTK_COMBO(combo->m_widget)->list; |
| 89 | gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection ); |
| 90 | |
| 91 | combo->m_prevSelection = curSelection; |
| 92 | |
| 93 | // Quickly set the value of the combo box |
| 94 | // as GTK+ does that only AFTER the event |
| 95 | // is sent. |
| 96 | gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(combo->GetHandle())->entry), |
| 97 | GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)combo ); |
| 98 | combo->SetValue( combo->GetStringSelection() ); |
| 99 | gtk_signal_connect( GTK_OBJECT(GTK_COMBO(combo->GetHandle())->entry), "changed", |
| 100 | GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)combo ); |
| 101 | |
| 102 | wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() ); |
| 103 | event.SetInt( curSelection ); |
| 104 | event.SetString( combo->GetStringSelection() ); |
| 105 | event.SetEventObject( combo ); |
| 106 | |
| 107 | combo->GetEventHandler()->ProcessEvent( event ); |
| 108 | |
| 109 | // Now send the event ourselves |
| 110 | wxCommandEvent event2( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() ); |
| 111 | event2.SetString( combo->GetValue() ); |
| 112 | event2.SetEventObject( combo ); |
| 113 | combo->GetEventHandler()->ProcessEvent( event2 ); |
| 114 | } |
| 115 | |
| 116 | //----------------------------------------------------------------------------- |
| 117 | // wxComboBox |
| 118 | //----------------------------------------------------------------------------- |
| 119 | |
| 120 | IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl) |
| 121 | |
| 122 | BEGIN_EVENT_TABLE(wxComboBox, wxControl) |
| 123 | EVT_SIZE(wxComboBox::OnSize) |
| 124 | EVT_CHAR(wxComboBox::OnChar) |
| 125 | |
| 126 | EVT_MENU(wxID_CUT, wxComboBox::OnCut) |
| 127 | EVT_MENU(wxID_COPY, wxComboBox::OnCopy) |
| 128 | EVT_MENU(wxID_PASTE, wxComboBox::OnPaste) |
| 129 | EVT_MENU(wxID_UNDO, wxComboBox::OnUndo) |
| 130 | EVT_MENU(wxID_REDO, wxComboBox::OnRedo) |
| 131 | EVT_MENU(wxID_CLEAR, wxComboBox::OnDelete) |
| 132 | EVT_MENU(wxID_SELECTALL, wxComboBox::OnSelectAll) |
| 133 | |
| 134 | EVT_UPDATE_UI(wxID_CUT, wxComboBox::OnUpdateCut) |
| 135 | EVT_UPDATE_UI(wxID_COPY, wxComboBox::OnUpdateCopy) |
| 136 | EVT_UPDATE_UI(wxID_PASTE, wxComboBox::OnUpdatePaste) |
| 137 | EVT_UPDATE_UI(wxID_UNDO, wxComboBox::OnUpdateUndo) |
| 138 | EVT_UPDATE_UI(wxID_REDO, wxComboBox::OnUpdateRedo) |
| 139 | EVT_UPDATE_UI(wxID_CLEAR, wxComboBox::OnUpdateDelete) |
| 140 | EVT_UPDATE_UI(wxID_SELECTALL, wxComboBox::OnUpdateSelectAll) |
| 141 | END_EVENT_TABLE() |
| 142 | |
| 143 | bool wxComboBox::Create( wxWindow *parent, wxWindowID id, |
| 144 | const wxString& value, |
| 145 | const wxPoint& pos, const wxSize& size, |
| 146 | const wxArrayString& choices, |
| 147 | long style, const wxValidator& validator, |
| 148 | const wxString& name ) |
| 149 | { |
| 150 | wxCArrayString chs(choices); |
| 151 | |
| 152 | return Create( parent, id, value, pos, size, chs.GetCount(), |
| 153 | chs.GetStrings(), style, validator, name ); |
| 154 | } |
| 155 | |
| 156 | bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value, |
| 157 | const wxPoint& pos, const wxSize& size, |
| 158 | int n, const wxString choices[], |
| 159 | long style, const wxValidator& validator, |
| 160 | const wxString& name ) |
| 161 | { |
| 162 | m_ignoreNextUpdate = FALSE; |
| 163 | m_needParent = TRUE; |
| 164 | m_acceptsFocus = TRUE; |
| 165 | m_prevSelection = 0; |
| 166 | |
| 167 | if (!PreCreation( parent, pos, size ) || |
| 168 | !CreateBase( parent, id, pos, size, style, validator, name )) |
| 169 | { |
| 170 | wxFAIL_MSG( wxT("wxComboBox creation failed") ); |
| 171 | return FALSE; |
| 172 | } |
| 173 | |
| 174 | m_widget = gtk_combo_new(); |
| 175 | GtkCombo *combo = GTK_COMBO(m_widget); |
| 176 | |
| 177 | // Disable GTK's broken events ... |
| 178 | gtk_signal_disconnect( GTK_OBJECT(combo->entry), combo->entry_change_id ); |
| 179 | // ... and add surogate handler. |
| 180 | combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed", |
| 181 | (GtkSignalFunc) gtk_dummy_callback, combo); |
| 182 | |
| 183 | // make it more useable |
| 184 | gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE ); |
| 185 | |
| 186 | // and case-sensitive |
| 187 | gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE ); |
| 188 | |
| 189 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 190 | |
| 191 | #ifndef __WXGTK20__ |
| 192 | // gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE ); |
| 193 | #endif |
| 194 | |
| 195 | for (int i = 0; i < n; i++) |
| 196 | { |
| 197 | GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( choices[i] ) ); |
| 198 | |
| 199 | m_clientDataList.Append( (wxObject*)NULL ); |
| 200 | m_clientObjectList.Append( (wxObject*)NULL ); |
| 201 | |
| 202 | gtk_container_add( GTK_CONTAINER(list), list_item ); |
| 203 | |
| 204 | gtk_widget_show( list_item ); |
| 205 | } |
| 206 | |
| 207 | m_parent->DoAddChild( this ); |
| 208 | |
| 209 | m_focusWidget = combo->entry; |
| 210 | |
| 211 | PostCreation(size); |
| 212 | |
| 213 | ConnectWidget( combo->button ); |
| 214 | |
| 215 | // MSW's combo box shows the value and the selection is -1 |
| 216 | gtk_entry_set_text( GTK_ENTRY(combo->entry), wxGTK_CONV(value) ); |
| 217 | gtk_list_unselect_all( GTK_LIST(combo->list) ); |
| 218 | |
| 219 | if (style & wxCB_READONLY) |
| 220 | gtk_entry_set_editable( GTK_ENTRY( combo->entry ), FALSE ); |
| 221 | |
| 222 | gtk_signal_connect( GTK_OBJECT(combo->entry), "changed", |
| 223 | GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this ); |
| 224 | |
| 225 | gtk_signal_connect( GTK_OBJECT(combo->list), "select-child", |
| 226 | GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this ); |
| 227 | |
| 228 | SetBestSize(size); // need this too because this is a wxControlWithItems |
| 229 | |
| 230 | // This is required for tool bar support |
| 231 | wxSize setsize = GetSize(); |
| 232 | gtk_widget_set_usize( m_widget, setsize.x, setsize.y ); |
| 233 | |
| 234 | return TRUE; |
| 235 | } |
| 236 | |
| 237 | wxComboBox::~wxComboBox() |
| 238 | { |
| 239 | wxList::compatibility_iterator node = m_clientObjectList.GetFirst(); |
| 240 | while (node) |
| 241 | { |
| 242 | wxClientData *cd = (wxClientData*)node->GetData(); |
| 243 | if (cd) delete cd; |
| 244 | node = node->GetNext(); |
| 245 | } |
| 246 | m_clientObjectList.Clear(); |
| 247 | |
| 248 | m_clientDataList.Clear(); |
| 249 | } |
| 250 | |
| 251 | void wxComboBox::SetFocus() |
| 252 | { |
| 253 | if ( m_hasFocus ) |
| 254 | { |
| 255 | // don't do anything if we already have focus |
| 256 | return; |
| 257 | } |
| 258 | |
| 259 | gtk_widget_grab_focus( m_focusWidget ); |
| 260 | } |
| 261 | |
| 262 | int wxComboBox::DoAppend( const wxString &item ) |
| 263 | { |
| 264 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") ); |
| 265 | |
| 266 | DisableEvents(); |
| 267 | |
| 268 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 269 | |
| 270 | GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( item ) ); |
| 271 | |
| 272 | gtk_container_add( GTK_CONTAINER(list), list_item ); |
| 273 | |
| 274 | if (GTK_WIDGET_REALIZED(m_widget)) |
| 275 | { |
| 276 | gtk_widget_realize( list_item ); |
| 277 | gtk_widget_realize( GTK_BIN(list_item)->child ); |
| 278 | } |
| 279 | |
| 280 | // Apply current widget style to the new list_item |
| 281 | GtkRcStyle *style = CreateWidgetStyle(); |
| 282 | if (style) |
| 283 | { |
| 284 | gtk_widget_modify_style( GTK_WIDGET( list_item ), style ); |
| 285 | GtkBin *bin = GTK_BIN( list_item ); |
| 286 | GtkWidget *label = GTK_WIDGET( bin->child ); |
| 287 | gtk_widget_modify_style( label, style ); |
| 288 | gtk_rc_style_unref( style ); |
| 289 | } |
| 290 | |
| 291 | gtk_widget_show( list_item ); |
| 292 | |
| 293 | const int count = GetCount(); |
| 294 | |
| 295 | if ( (int)m_clientDataList.GetCount() < count ) |
| 296 | m_clientDataList.Append( (wxObject*) NULL ); |
| 297 | if ( (int)m_clientObjectList.GetCount() < count ) |
| 298 | m_clientObjectList.Append( (wxObject*) NULL ); |
| 299 | |
| 300 | EnableEvents(); |
| 301 | |
| 302 | InvalidateBestSize(); |
| 303 | |
| 304 | return count - 1; |
| 305 | } |
| 306 | |
| 307 | int wxComboBox::DoInsert( const wxString &item, int pos ) |
| 308 | { |
| 309 | wxCHECK_MSG( !(GetWindowStyle() & wxCB_SORT), -1, |
| 310 | wxT("can't insert into sorted list")); |
| 311 | |
| 312 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") ); |
| 313 | |
| 314 | int count = GetCount(); |
| 315 | wxCHECK_MSG( (pos >= 0) && (pos <= count), -1, wxT("invalid index") ); |
| 316 | |
| 317 | if (pos == count) |
| 318 | return Append(item); |
| 319 | |
| 320 | DisableEvents(); |
| 321 | |
| 322 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 323 | |
| 324 | GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( item ) ); |
| 325 | |
| 326 | GList *gitem_list = g_list_alloc (); |
| 327 | gitem_list->data = list_item; |
| 328 | gtk_list_insert_items( GTK_LIST (list), gitem_list, pos ); |
| 329 | |
| 330 | if (GTK_WIDGET_REALIZED(m_widget)) |
| 331 | { |
| 332 | gtk_widget_realize( list_item ); |
| 333 | gtk_widget_realize( GTK_BIN(list_item)->child ); |
| 334 | |
| 335 | ApplyWidgetStyle(); |
| 336 | } |
| 337 | |
| 338 | gtk_widget_show( list_item ); |
| 339 | |
| 340 | count = GetCount(); |
| 341 | |
| 342 | if ( (int)m_clientDataList.GetCount() < count ) |
| 343 | m_clientDataList.Insert( pos, (wxObject*) NULL ); |
| 344 | if ( (int)m_clientObjectList.GetCount() < count ) |
| 345 | m_clientObjectList.Insert( pos, (wxObject*) NULL ); |
| 346 | |
| 347 | EnableEvents(); |
| 348 | |
| 349 | InvalidateBestSize(); |
| 350 | |
| 351 | return pos; |
| 352 | } |
| 353 | |
| 354 | void wxComboBox::DoSetItemClientData( int n, void* clientData ) |
| 355 | { |
| 356 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 357 | |
| 358 | wxList::compatibility_iterator node = m_clientDataList.Item( n ); |
| 359 | if (!node) return; |
| 360 | |
| 361 | node->SetData( (wxObject*) clientData ); |
| 362 | } |
| 363 | |
| 364 | void* wxComboBox::DoGetItemClientData( int n ) const |
| 365 | { |
| 366 | wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") ); |
| 367 | |
| 368 | wxList::compatibility_iterator node = m_clientDataList.Item( n ); |
| 369 | |
| 370 | return node ? node->GetData() : NULL; |
| 371 | } |
| 372 | |
| 373 | void wxComboBox::DoSetItemClientObject( int n, wxClientData* clientData ) |
| 374 | { |
| 375 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 376 | |
| 377 | wxList::compatibility_iterator node = m_clientObjectList.Item( n ); |
| 378 | if (!node) return; |
| 379 | |
| 380 | // wxItemContainer already deletes data for us |
| 381 | |
| 382 | node->SetData( (wxObject*) clientData ); |
| 383 | } |
| 384 | |
| 385 | wxClientData* wxComboBox::DoGetItemClientObject( int n ) const |
| 386 | { |
| 387 | wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") ); |
| 388 | |
| 389 | wxList::compatibility_iterator node = m_clientObjectList.Item( n ); |
| 390 | |
| 391 | return node ? (wxClientData*) node->GetData() : NULL; |
| 392 | } |
| 393 | |
| 394 | void wxComboBox::Clear() |
| 395 | { |
| 396 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 397 | |
| 398 | DisableEvents(); |
| 399 | |
| 400 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 401 | gtk_list_clear_items( GTK_LIST(list), 0, GetCount() ); |
| 402 | |
| 403 | wxList::compatibility_iterator node = m_clientObjectList.GetFirst(); |
| 404 | while (node) |
| 405 | { |
| 406 | wxClientData *cd = (wxClientData*)node->GetData(); |
| 407 | if (cd) delete cd; |
| 408 | node = node->GetNext(); |
| 409 | } |
| 410 | m_clientObjectList.Clear(); |
| 411 | |
| 412 | m_clientDataList.Clear(); |
| 413 | |
| 414 | EnableEvents(); |
| 415 | |
| 416 | InvalidateBestSize(); |
| 417 | } |
| 418 | |
| 419 | void wxComboBox::Delete( int n ) |
| 420 | { |
| 421 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 422 | |
| 423 | GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list ); |
| 424 | |
| 425 | GList *child = g_list_nth( listbox->children, n ); |
| 426 | |
| 427 | if (!child) |
| 428 | { |
| 429 | wxFAIL_MSG(wxT("wrong index")); |
| 430 | return; |
| 431 | } |
| 432 | |
| 433 | DisableEvents(); |
| 434 | |
| 435 | GList *list = g_list_append( (GList*) NULL, child->data ); |
| 436 | gtk_list_remove_items( listbox, list ); |
| 437 | g_list_free( list ); |
| 438 | |
| 439 | wxList::compatibility_iterator node = m_clientObjectList.Item( n ); |
| 440 | if (node) |
| 441 | { |
| 442 | wxClientData *cd = (wxClientData*)node->GetData(); |
| 443 | if (cd) delete cd; |
| 444 | m_clientObjectList.Erase( node ); |
| 445 | } |
| 446 | |
| 447 | node = m_clientDataList.Item( n ); |
| 448 | if (node) |
| 449 | m_clientDataList.Erase( node ); |
| 450 | |
| 451 | EnableEvents(); |
| 452 | |
| 453 | InvalidateBestSize(); |
| 454 | } |
| 455 | |
| 456 | void wxComboBox::SetString(int n, const wxString &text) |
| 457 | { |
| 458 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 459 | |
| 460 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 461 | |
| 462 | GList *child = g_list_nth( GTK_LIST(list)->children, n ); |
| 463 | if (child) |
| 464 | { |
| 465 | GtkBin *bin = GTK_BIN( child->data ); |
| 466 | GtkLabel *label = GTK_LABEL( bin->child ); |
| 467 | gtk_label_set_text(label, wxGTK_CONV(text)); |
| 468 | } |
| 469 | else |
| 470 | { |
| 471 | wxFAIL_MSG( wxT("wxComboBox: wrong index") ); |
| 472 | } |
| 473 | |
| 474 | InvalidateBestSize(); |
| 475 | } |
| 476 | |
| 477 | int wxComboBox::FindString( const wxString &item ) const |
| 478 | { |
| 479 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") ); |
| 480 | |
| 481 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 482 | |
| 483 | GList *child = GTK_LIST(list)->children; |
| 484 | int count = 0; |
| 485 | while (child) |
| 486 | { |
| 487 | GtkBin *bin = GTK_BIN( child->data ); |
| 488 | GtkLabel *label = GTK_LABEL( bin->child ); |
| 489 | #ifdef __WXGTK20__ |
| 490 | wxString str( wxGTK_CONV_BACK( gtk_label_get_text(label) ) ); |
| 491 | #else |
| 492 | wxString str( label->label ); |
| 493 | #endif |
| 494 | if (item == str) |
| 495 | return count; |
| 496 | |
| 497 | count++; |
| 498 | child = child->next; |
| 499 | } |
| 500 | |
| 501 | return wxNOT_FOUND; |
| 502 | } |
| 503 | |
| 504 | int wxComboBox::GetSelection() const |
| 505 | { |
| 506 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") ); |
| 507 | |
| 508 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 509 | |
| 510 | GList *selection = GTK_LIST(list)->selection; |
| 511 | if (selection) |
| 512 | { |
| 513 | GList *child = GTK_LIST(list)->children; |
| 514 | int count = 0; |
| 515 | while (child) |
| 516 | { |
| 517 | if (child->data == selection->data) return count; |
| 518 | count++; |
| 519 | child = child->next; |
| 520 | } |
| 521 | } |
| 522 | |
| 523 | return -1; |
| 524 | } |
| 525 | |
| 526 | wxString wxComboBox::GetString( int n ) const |
| 527 | { |
| 528 | wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") ); |
| 529 | |
| 530 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 531 | |
| 532 | wxString str; |
| 533 | GList *child = g_list_nth( GTK_LIST(list)->children, n ); |
| 534 | if (child) |
| 535 | { |
| 536 | GtkBin *bin = GTK_BIN( child->data ); |
| 537 | GtkLabel *label = GTK_LABEL( bin->child ); |
| 538 | #ifdef __WXGTK20__ |
| 539 | str = wxGTK_CONV_BACK( gtk_label_get_text(label) ); |
| 540 | #else |
| 541 | str = wxString( label->label ); |
| 542 | #endif |
| 543 | } |
| 544 | else |
| 545 | { |
| 546 | wxFAIL_MSG( wxT("wxComboBox: wrong index") ); |
| 547 | } |
| 548 | |
| 549 | return str; |
| 550 | } |
| 551 | |
| 552 | wxString wxComboBox::GetStringSelection() const |
| 553 | { |
| 554 | wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") ); |
| 555 | |
| 556 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 557 | |
| 558 | GList *selection = GTK_LIST(list)->selection; |
| 559 | if (selection) |
| 560 | { |
| 561 | GtkBin *bin = GTK_BIN( selection->data ); |
| 562 | GtkLabel *label = GTK_LABEL( bin->child ); |
| 563 | #ifdef __WXGTK20__ |
| 564 | wxString tmp( wxGTK_CONV_BACK( gtk_label_get_text(label) ) ); |
| 565 | #else |
| 566 | wxString tmp( label->label ); |
| 567 | #endif |
| 568 | return tmp; |
| 569 | } |
| 570 | |
| 571 | wxFAIL_MSG( wxT("wxComboBox: no selection") ); |
| 572 | |
| 573 | return wxT(""); |
| 574 | } |
| 575 | |
| 576 | int wxComboBox::GetCount() const |
| 577 | { |
| 578 | wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") ); |
| 579 | |
| 580 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 581 | |
| 582 | GList *child = GTK_LIST(list)->children; |
| 583 | int count = 0; |
| 584 | while (child) { count++; child = child->next; } |
| 585 | return count; |
| 586 | } |
| 587 | |
| 588 | void wxComboBox::SetSelection( int n ) |
| 589 | { |
| 590 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 591 | |
| 592 | DisableEvents(); |
| 593 | |
| 594 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 595 | gtk_list_unselect_item( GTK_LIST(list), m_prevSelection ); |
| 596 | gtk_list_select_item( GTK_LIST(list), n ); |
| 597 | m_prevSelection = n; |
| 598 | |
| 599 | EnableEvents(); |
| 600 | } |
| 601 | |
| 602 | bool wxComboBox::SetStringSelection( const wxString &string ) |
| 603 | { |
| 604 | wxCHECK_MSG( m_widget != NULL, false, wxT("invalid combobox") ); |
| 605 | |
| 606 | int res = FindString( string ); |
| 607 | if (res == -1) return false; |
| 608 | SetSelection( res ); |
| 609 | return true; |
| 610 | } |
| 611 | |
| 612 | wxString wxComboBox::GetValue() const |
| 613 | { |
| 614 | GtkEntry *entry = GTK_ENTRY( GTK_COMBO(m_widget)->entry ); |
| 615 | wxString tmp( wxGTK_CONV_BACK( gtk_entry_get_text( entry ) ) ); |
| 616 | |
| 617 | #if 0 |
| 618 | for (int i = 0; i < wxStrlen(tmp.c_str()) +1; i++) |
| 619 | { |
| 620 | wxChar c = tmp[i]; |
| 621 | printf( "%d ", (int) (c) ); |
| 622 | } |
| 623 | printf( "\n" ); |
| 624 | #endif |
| 625 | |
| 626 | return tmp; |
| 627 | } |
| 628 | |
| 629 | void wxComboBox::SetValue( const wxString& value ) |
| 630 | { |
| 631 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 632 | |
| 633 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 634 | wxString tmp = wxT(""); |
| 635 | if (!value.IsNull()) tmp = value; |
| 636 | gtk_entry_set_text( GTK_ENTRY(entry), wxGTK_CONV( tmp ) ); |
| 637 | |
| 638 | InvalidateBestSize(); |
| 639 | } |
| 640 | |
| 641 | void wxComboBox::Copy() |
| 642 | { |
| 643 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 644 | |
| 645 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 646 | gtk_editable_copy_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG ); |
| 647 | } |
| 648 | |
| 649 | void wxComboBox::Cut() |
| 650 | { |
| 651 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 652 | |
| 653 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 654 | gtk_editable_cut_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG ); |
| 655 | } |
| 656 | |
| 657 | void wxComboBox::Paste() |
| 658 | { |
| 659 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 660 | |
| 661 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 662 | gtk_editable_paste_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG); |
| 663 | } |
| 664 | |
| 665 | void wxComboBox::Undo() |
| 666 | { |
| 667 | // TODO |
| 668 | } |
| 669 | |
| 670 | void wxComboBox::Redo() |
| 671 | { |
| 672 | // TODO |
| 673 | } |
| 674 | |
| 675 | void wxComboBox::SelectAll() |
| 676 | { |
| 677 | SetSelection(0, GetLastPosition()); |
| 678 | } |
| 679 | |
| 680 | bool wxComboBox::CanUndo() const |
| 681 | { |
| 682 | // TODO |
| 683 | return false; |
| 684 | } |
| 685 | |
| 686 | bool wxComboBox::CanRedo() const |
| 687 | { |
| 688 | // TODO |
| 689 | return false; |
| 690 | } |
| 691 | |
| 692 | bool wxComboBox::HasSelection() const |
| 693 | { |
| 694 | long from, to; |
| 695 | GetSelection(&from, &to); |
| 696 | return from != to; |
| 697 | } |
| 698 | |
| 699 | bool wxComboBox::CanCopy() const |
| 700 | { |
| 701 | // Can copy if there's a selection |
| 702 | return HasSelection(); |
| 703 | } |
| 704 | |
| 705 | bool wxComboBox::CanCut() const |
| 706 | { |
| 707 | return CanCopy() && IsEditable(); |
| 708 | } |
| 709 | |
| 710 | bool wxComboBox::CanPaste() const |
| 711 | { |
| 712 | // TODO: check for text on the clipboard |
| 713 | return IsEditable() ; |
| 714 | } |
| 715 | |
| 716 | bool wxComboBox::IsEditable() const |
| 717 | { |
| 718 | return !HasFlag(wxCB_READONLY); |
| 719 | } |
| 720 | |
| 721 | |
| 722 | void wxComboBox::SetInsertionPoint( long pos ) |
| 723 | { |
| 724 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 725 | |
| 726 | if ( pos == GetLastPosition() ) |
| 727 | pos = -1; |
| 728 | |
| 729 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 730 | gtk_entry_set_position( GTK_ENTRY(entry), (int)pos ); |
| 731 | } |
| 732 | |
| 733 | long wxComboBox::GetInsertionPoint() const |
| 734 | { |
| 735 | return (long) GET_EDITABLE_POS( GTK_COMBO(m_widget)->entry ); |
| 736 | } |
| 737 | |
| 738 | long wxComboBox::GetLastPosition() const |
| 739 | { |
| 740 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 741 | int pos = GTK_ENTRY(entry)->text_length; |
| 742 | return (long) pos-1; |
| 743 | } |
| 744 | |
| 745 | void wxComboBox::Replace( long from, long to, const wxString& value ) |
| 746 | { |
| 747 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 748 | |
| 749 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 750 | gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to ); |
| 751 | if (value.IsNull()) return; |
| 752 | gint pos = (gint)to; |
| 753 | |
| 754 | #if wxUSE_UNICODE |
| 755 | wxCharBuffer buffer = wxConvUTF8.cWX2MB( value ); |
| 756 | gtk_editable_insert_text( GTK_EDITABLE(entry), (const char*) buffer, strlen( (const char*) buffer ), &pos ); |
| 757 | #else |
| 758 | gtk_editable_insert_text( GTK_EDITABLE(entry), value.c_str(), value.Length(), &pos ); |
| 759 | #endif |
| 760 | } |
| 761 | |
| 762 | void wxComboBox::SetSelection( long from, long to ) |
| 763 | { |
| 764 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 765 | gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to ); |
| 766 | } |
| 767 | |
| 768 | void wxComboBox::GetSelection( long* from, long* to ) const |
| 769 | { |
| 770 | if (IsEditable()) |
| 771 | { |
| 772 | GtkEditable *editable = GTK_EDITABLE(GTK_COMBO(m_widget)->entry); |
| 773 | #ifdef __WXGTK20__ |
| 774 | gint start, end; |
| 775 | gtk_editable_get_selection_bounds(editable, & start, & end); |
| 776 | *from = start; |
| 777 | *to = end; |
| 778 | #else |
| 779 | *from = (long) editable->selection_start_pos; |
| 780 | *to = (long) editable->selection_end_pos; |
| 781 | #endif |
| 782 | } |
| 783 | } |
| 784 | |
| 785 | void wxComboBox::SetEditable( bool editable ) |
| 786 | { |
| 787 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 788 | gtk_entry_set_editable( GTK_ENTRY(entry), editable ); |
| 789 | } |
| 790 | |
| 791 | void wxComboBox::OnChar( wxKeyEvent &event ) |
| 792 | { |
| 793 | if ( event.GetKeyCode() == WXK_RETURN ) |
| 794 | { |
| 795 | // GTK automatically selects an item if its in the list |
| 796 | wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, GetId()); |
| 797 | event.SetString( GetValue() ); |
| 798 | event.SetInt( GetSelection() ); |
| 799 | event.SetEventObject( this ); |
| 800 | |
| 801 | if (!GetEventHandler()->ProcessEvent( event )) |
| 802 | { |
| 803 | // This will invoke the dialog default action, such |
| 804 | // as the clicking the default button. |
| 805 | |
| 806 | wxWindow *top_frame = m_parent; |
| 807 | while (top_frame->GetParent() && !(top_frame->IsTopLevel())) |
| 808 | top_frame = top_frame->GetParent(); |
| 809 | |
| 810 | if (top_frame && GTK_IS_WINDOW(top_frame->m_widget)) |
| 811 | { |
| 812 | GtkWindow *window = GTK_WINDOW(top_frame->m_widget); |
| 813 | |
| 814 | if (window->default_widget) |
| 815 | gtk_widget_activate (window->default_widget); |
| 816 | } |
| 817 | } |
| 818 | |
| 819 | // Catch GTK event so that GTK doesn't open the drop |
| 820 | // down list upon RETURN. |
| 821 | return; |
| 822 | } |
| 823 | |
| 824 | event.Skip(); |
| 825 | } |
| 826 | |
| 827 | void wxComboBox::DisableEvents() |
| 828 | { |
| 829 | gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(m_widget)->list), |
| 830 | GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this ); |
| 831 | gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(m_widget)->entry), |
| 832 | GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this ); |
| 833 | } |
| 834 | |
| 835 | void wxComboBox::EnableEvents() |
| 836 | { |
| 837 | gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->list), "select-child", |
| 838 | GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this ); |
| 839 | gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed", |
| 840 | GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this ); |
| 841 | } |
| 842 | |
| 843 | void wxComboBox::OnSize( wxSizeEvent &event ) |
| 844 | { |
| 845 | // NB: In some situations (e.g. on non-first page of a wizard, if the |
| 846 | // size used is default size), GtkCombo widget is resized correctly, |
| 847 | // but it's look is not updated, it's rendered as if it was much wider. |
| 848 | // No other widgets are affected, so it looks like a bug in GTK+. |
| 849 | // Manually requesting resize calculation (as gtk_pizza_set_size does) |
| 850 | // fixes it. |
| 851 | if (GTK_WIDGET_VISIBLE(m_widget)) |
| 852 | gtk_widget_queue_resize(m_widget); |
| 853 | |
| 854 | event.Skip(); |
| 855 | } |
| 856 | |
| 857 | void wxComboBox::DoApplyWidgetStyle(GtkRcStyle *style) |
| 858 | { |
| 859 | // gtk_widget_modify_style( GTK_COMBO(m_widget)->button, syle ); |
| 860 | |
| 861 | gtk_widget_modify_style( GTK_COMBO(m_widget)->entry, style ); |
| 862 | gtk_widget_modify_style( GTK_COMBO(m_widget)->list, style ); |
| 863 | |
| 864 | GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list ); |
| 865 | GList *child = list->children; |
| 866 | while (child) |
| 867 | { |
| 868 | gtk_widget_modify_style( GTK_WIDGET(child->data), style ); |
| 869 | |
| 870 | GtkBin *bin = GTK_BIN(child->data); |
| 871 | gtk_widget_modify_style( bin->child, style ); |
| 872 | |
| 873 | child = child->next; |
| 874 | } |
| 875 | } |
| 876 | |
| 877 | GtkWidget* wxComboBox::GetConnectWidget() |
| 878 | { |
| 879 | return GTK_COMBO(m_widget)->entry; |
| 880 | } |
| 881 | |
| 882 | bool wxComboBox::IsOwnGtkWindow( GdkWindow *window ) |
| 883 | { |
| 884 | return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) || |
| 885 | (window == GTK_COMBO(m_widget)->button->window ) ); |
| 886 | } |
| 887 | |
| 888 | wxSize wxComboBox::DoGetBestSize() const |
| 889 | { |
| 890 | wxSize ret( wxControl::DoGetBestSize() ); |
| 891 | |
| 892 | // we know better our horizontal extent: it depends on the longest string |
| 893 | // in the combobox |
| 894 | if ( m_widget ) |
| 895 | { |
| 896 | int width; |
| 897 | size_t count = GetCount(); |
| 898 | for ( size_t n = 0; n < count; n++ ) |
| 899 | { |
| 900 | GetTextExtent( GetString(n), &width, NULL, NULL, NULL ); |
| 901 | if ( width > ret.x ) |
| 902 | ret.x = width; |
| 903 | } |
| 904 | } |
| 905 | |
| 906 | // empty combobox should have some reasonable default size too |
| 907 | if ( ret.x < 100 ) |
| 908 | ret.x = 100; |
| 909 | |
| 910 | CacheBestSize(ret); |
| 911 | return ret; |
| 912 | } |
| 913 | |
| 914 | // static |
| 915 | wxVisualAttributes |
| 916 | wxComboBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) |
| 917 | { |
| 918 | return GetDefaultAttributesFromGTKWidget(gtk_combo_new, true); |
| 919 | } |
| 920 | |
| 921 | // ---------------------------------------------------------------------------- |
| 922 | // standard event handling |
| 923 | // ---------------------------------------------------------------------------- |
| 924 | |
| 925 | void wxComboBox::OnCut(wxCommandEvent& WXUNUSED(event)) |
| 926 | { |
| 927 | Cut(); |
| 928 | } |
| 929 | |
| 930 | void wxComboBox::OnCopy(wxCommandEvent& WXUNUSED(event)) |
| 931 | { |
| 932 | Copy(); |
| 933 | } |
| 934 | |
| 935 | void wxComboBox::OnPaste(wxCommandEvent& WXUNUSED(event)) |
| 936 | { |
| 937 | Paste(); |
| 938 | } |
| 939 | |
| 940 | void wxComboBox::OnUndo(wxCommandEvent& WXUNUSED(event)) |
| 941 | { |
| 942 | Undo(); |
| 943 | } |
| 944 | |
| 945 | void wxComboBox::OnRedo(wxCommandEvent& WXUNUSED(event)) |
| 946 | { |
| 947 | Redo(); |
| 948 | } |
| 949 | |
| 950 | void wxComboBox::OnDelete(wxCommandEvent& WXUNUSED(event)) |
| 951 | { |
| 952 | long from, to; |
| 953 | GetSelection(& from, & to); |
| 954 | if (from != -1 && to != -1) |
| 955 | Remove(from, to); |
| 956 | } |
| 957 | |
| 958 | void wxComboBox::OnSelectAll(wxCommandEvent& WXUNUSED(event)) |
| 959 | { |
| 960 | SetSelection(-1, -1); |
| 961 | } |
| 962 | |
| 963 | void wxComboBox::OnUpdateCut(wxUpdateUIEvent& event) |
| 964 | { |
| 965 | event.Enable( CanCut() ); |
| 966 | } |
| 967 | |
| 968 | void wxComboBox::OnUpdateCopy(wxUpdateUIEvent& event) |
| 969 | { |
| 970 | event.Enable( CanCopy() ); |
| 971 | } |
| 972 | |
| 973 | void wxComboBox::OnUpdatePaste(wxUpdateUIEvent& event) |
| 974 | { |
| 975 | event.Enable( CanPaste() ); |
| 976 | } |
| 977 | |
| 978 | void wxComboBox::OnUpdateUndo(wxUpdateUIEvent& event) |
| 979 | { |
| 980 | event.Enable( CanUndo() ); |
| 981 | } |
| 982 | |
| 983 | void wxComboBox::OnUpdateRedo(wxUpdateUIEvent& event) |
| 984 | { |
| 985 | event.Enable( CanRedo() ); |
| 986 | } |
| 987 | |
| 988 | void wxComboBox::OnUpdateDelete(wxUpdateUIEvent& event) |
| 989 | { |
| 990 | event.Enable(HasSelection() && IsEditable()) ; |
| 991 | } |
| 992 | |
| 993 | void wxComboBox::OnUpdateSelectAll(wxUpdateUIEvent& event) |
| 994 | { |
| 995 | event.Enable(GetLastPosition() > 0); |
| 996 | } |
| 997 | |
| 998 | #endif |
| 999 | |