| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/gtk1/combobox.cpp |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // Id: $Id$ |
| 6 | // Copyright: (c) 1998 Robert Roebling |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | // For compilers that support precompilation, includes "wx.h". |
| 11 | #include "wx/wxprec.h" |
| 12 | |
| 13 | #if wxUSE_COMBOBOX |
| 14 | |
| 15 | #include "wx/combobox.h" |
| 16 | |
| 17 | #ifndef WX_PRECOMP |
| 18 | #include "wx/intl.h" |
| 19 | #include "wx/settings.h" |
| 20 | #include "wx/textctrl.h" // for wxEVT_COMMAND_TEXT_UPDATED |
| 21 | #include "wx/arrstr.h" |
| 22 | #endif |
| 23 | |
| 24 | #include "wx/gtk1/private.h" |
| 25 | |
| 26 | //----------------------------------------------------------------------------- |
| 27 | // idle system |
| 28 | //----------------------------------------------------------------------------- |
| 29 | |
| 30 | extern void wxapp_install_idle_handler(); |
| 31 | extern bool g_isIdle; |
| 32 | |
| 33 | //----------------------------------------------------------------------------- |
| 34 | // data |
| 35 | //----------------------------------------------------------------------------- |
| 36 | |
| 37 | extern bool g_blockEventsOnDrag; |
| 38 | static int g_SelectionBeforePopup = wxID_NONE; // this means the popup is hidden |
| 39 | |
| 40 | //----------------------------------------------------------------------------- |
| 41 | // "changed" - typing and list item matches get changed, select-child |
| 42 | // if it doesn't match an item then just get a single changed |
| 43 | //----------------------------------------------------------------------------- |
| 44 | |
| 45 | extern "C" { |
| 46 | static void |
| 47 | gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo ) |
| 48 | { |
| 49 | if (g_isIdle) wxapp_install_idle_handler(); |
| 50 | |
| 51 | if (combo->m_ignoreNextUpdate) |
| 52 | { |
| 53 | combo->m_ignoreNextUpdate = false; |
| 54 | return; |
| 55 | } |
| 56 | |
| 57 | if (!combo->m_hasVMT) return; |
| 58 | |
| 59 | wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() ); |
| 60 | event.SetString( combo->GetValue() ); |
| 61 | event.SetEventObject( combo ); |
| 62 | combo->HandleWindowEvent( event ); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | extern "C" { |
| 67 | static void |
| 68 | gtk_dummy_callback(GtkEntry *WXUNUSED(entry), GtkCombo *WXUNUSED(combo)) |
| 69 | { |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | extern "C" { |
| 74 | static void |
| 75 | gtk_popup_hide_callback(GtkCombo *WXUNUSED(gtk_combo), wxComboBox *combo) |
| 76 | { |
| 77 | // when the popup is hidden, throw a SELECTED event only if the combobox |
| 78 | // selection changed. |
| 79 | const int curSelection = combo->GetCurrentSelection(); |
| 80 | |
| 81 | const bool hasChanged = curSelection != g_SelectionBeforePopup; |
| 82 | |
| 83 | // reset the selection flag to value meaning that it is hidden and do it |
| 84 | // now, before generating the events, so that GetSelection() returns the |
| 85 | // new value from the event handler |
| 86 | g_SelectionBeforePopup = wxID_NONE; |
| 87 | |
| 88 | if ( hasChanged ) |
| 89 | { |
| 90 | wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() ); |
| 91 | event.SetInt( curSelection ); |
| 92 | event.SetString( combo->GetStringSelection() ); |
| 93 | event.SetEventObject( combo ); |
| 94 | combo->HandleWindowEvent( event ); |
| 95 | |
| 96 | // for consistency with the other ports, send TEXT event |
| 97 | wxCommandEvent event2( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() ); |
| 98 | event2.SetString( combo->GetStringSelection() ); |
| 99 | event2.SetEventObject( combo ); |
| 100 | combo->HandleWindowEvent( event2 ); |
| 101 | } |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | extern "C" { |
| 106 | static void |
| 107 | gtk_popup_show_callback(GtkCombo *WXUNUSED(gtk_combo), wxComboBox *combo) |
| 108 | { |
| 109 | // store the combobox selection value before the popup is shown |
| 110 | g_SelectionBeforePopup = combo->GetCurrentSelection(); |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | //----------------------------------------------------------------------------- |
| 115 | // "select-child" - click/cursor get select-child, changed, select-child |
| 116 | //----------------------------------------------------------------------------- |
| 117 | |
| 118 | extern "C" { |
| 119 | static void |
| 120 | gtk_combo_select_child_callback( GtkList *WXUNUSED(list), GtkWidget *WXUNUSED(widget), wxComboBox *combo ) |
| 121 | { |
| 122 | if (g_isIdle) wxapp_install_idle_handler(); |
| 123 | |
| 124 | if (!combo->m_hasVMT) return; |
| 125 | |
| 126 | if (g_blockEventsOnDrag) return; |
| 127 | |
| 128 | int curSelection = combo->GetCurrentSelection(); |
| 129 | |
| 130 | if (combo->m_prevSelection == curSelection) return; |
| 131 | |
| 132 | GtkWidget *list = GTK_COMBO(combo->m_widget)->list; |
| 133 | gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection ); |
| 134 | |
| 135 | combo->m_prevSelection = curSelection; |
| 136 | |
| 137 | // Quickly set the value of the combo box |
| 138 | // as GTK+ does that only AFTER the event |
| 139 | // is sent. |
| 140 | gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(combo->GetHandle())->entry), |
| 141 | GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)combo ); |
| 142 | combo->SetValue( combo->GetStringSelection() ); |
| 143 | gtk_signal_connect_after( GTK_OBJECT(GTK_COMBO(combo->GetHandle())->entry), "changed", |
| 144 | GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)combo ); |
| 145 | |
| 146 | // throw a SELECTED event only if the combobox popup is hidden (wxID_NONE) |
| 147 | // because when combobox popup is shown, gtk_combo_select_child_callback is |
| 148 | // called each times the mouse is over an item with a pressed button so a lot |
| 149 | // of SELECTED event could be generated if the user keep the mouse button down |
| 150 | // and select other items ... |
| 151 | if (g_SelectionBeforePopup == wxID_NONE) |
| 152 | { |
| 153 | wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() ); |
| 154 | event.SetInt( curSelection ); |
| 155 | event.SetString( combo->GetStringSelection() ); |
| 156 | event.SetEventObject( combo ); |
| 157 | combo->HandleWindowEvent( event ); |
| 158 | |
| 159 | // for consistency with the other ports, don't generate text update |
| 160 | // events while the user is browsing the combobox neither |
| 161 | wxCommandEvent event2( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() ); |
| 162 | event2.SetString( combo->GetValue() ); |
| 163 | event2.SetEventObject( combo ); |
| 164 | combo->HandleWindowEvent( event2 ); |
| 165 | } |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | //----------------------------------------------------------------------------- |
| 170 | // wxComboBox |
| 171 | //----------------------------------------------------------------------------- |
| 172 | |
| 173 | IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl) |
| 174 | |
| 175 | BEGIN_EVENT_TABLE(wxComboBox, wxControl) |
| 176 | EVT_SIZE(wxComboBox::OnSize) |
| 177 | EVT_CHAR(wxComboBox::OnChar) |
| 178 | |
| 179 | EVT_MENU(wxID_CUT, wxComboBox::OnCut) |
| 180 | EVT_MENU(wxID_COPY, wxComboBox::OnCopy) |
| 181 | EVT_MENU(wxID_PASTE, wxComboBox::OnPaste) |
| 182 | EVT_MENU(wxID_UNDO, wxComboBox::OnUndo) |
| 183 | EVT_MENU(wxID_REDO, wxComboBox::OnRedo) |
| 184 | EVT_MENU(wxID_CLEAR, wxComboBox::OnDelete) |
| 185 | EVT_MENU(wxID_SELECTALL, wxComboBox::OnSelectAll) |
| 186 | |
| 187 | EVT_UPDATE_UI(wxID_CUT, wxComboBox::OnUpdateCut) |
| 188 | EVT_UPDATE_UI(wxID_COPY, wxComboBox::OnUpdateCopy) |
| 189 | EVT_UPDATE_UI(wxID_PASTE, wxComboBox::OnUpdatePaste) |
| 190 | EVT_UPDATE_UI(wxID_UNDO, wxComboBox::OnUpdateUndo) |
| 191 | EVT_UPDATE_UI(wxID_REDO, wxComboBox::OnUpdateRedo) |
| 192 | EVT_UPDATE_UI(wxID_CLEAR, wxComboBox::OnUpdateDelete) |
| 193 | EVT_UPDATE_UI(wxID_SELECTALL, wxComboBox::OnUpdateSelectAll) |
| 194 | END_EVENT_TABLE() |
| 195 | |
| 196 | bool wxComboBox::Create( wxWindow *parent, wxWindowID id, |
| 197 | const wxString& value, |
| 198 | const wxPoint& pos, const wxSize& size, |
| 199 | const wxArrayString& choices, |
| 200 | long style, const wxValidator& validator, |
| 201 | const wxString& name ) |
| 202 | { |
| 203 | wxCArrayString chs(choices); |
| 204 | |
| 205 | return Create( parent, id, value, pos, size, chs.GetCount(), |
| 206 | chs.GetStrings(), style, validator, name ); |
| 207 | } |
| 208 | |
| 209 | bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value, |
| 210 | const wxPoint& pos, const wxSize& size, |
| 211 | int n, const wxString choices[], |
| 212 | long style, const wxValidator& validator, |
| 213 | const wxString& name ) |
| 214 | { |
| 215 | m_ignoreNextUpdate = false; |
| 216 | m_needParent = true; |
| 217 | m_acceptsFocus = true; |
| 218 | m_prevSelection = 0; |
| 219 | |
| 220 | if (!PreCreation( parent, pos, size ) || |
| 221 | !CreateBase( parent, id, pos, size, style, validator, name )) |
| 222 | { |
| 223 | wxFAIL_MSG( wxT("wxComboBox creation failed") ); |
| 224 | return false; |
| 225 | } |
| 226 | |
| 227 | m_widget = gtk_combo_new(); |
| 228 | GtkCombo *combo = GTK_COMBO(m_widget); |
| 229 | |
| 230 | // Disable GTK's broken events ... |
| 231 | gtk_signal_disconnect( GTK_OBJECT(combo->entry), combo->entry_change_id ); |
| 232 | // ... and add surrogate handler. |
| 233 | combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed", |
| 234 | (GtkSignalFunc) gtk_dummy_callback, combo); |
| 235 | |
| 236 | // make it more useable |
| 237 | gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE ); |
| 238 | |
| 239 | // and case-sensitive |
| 240 | gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE ); |
| 241 | |
| 242 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 243 | |
| 244 | // gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE ); |
| 245 | |
| 246 | for (int i = 0; i < n; i++) |
| 247 | { |
| 248 | GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( choices[i] ) ); |
| 249 | |
| 250 | m_clientDataList.Append( NULL ); |
| 251 | m_clientObjectList.Append( NULL ); |
| 252 | |
| 253 | gtk_container_add( GTK_CONTAINER(list), list_item ); |
| 254 | |
| 255 | gtk_widget_show( list_item ); |
| 256 | } |
| 257 | |
| 258 | m_parent->DoAddChild( this ); |
| 259 | |
| 260 | m_focusWidget = combo->entry; |
| 261 | |
| 262 | PostCreation(size); |
| 263 | |
| 264 | ConnectWidget( combo->button ); |
| 265 | |
| 266 | // MSW's combo box shows the value and the selection is -1 |
| 267 | gtk_entry_set_text( GTK_ENTRY(combo->entry), wxGTK_CONV(value) ); |
| 268 | gtk_list_unselect_all( GTK_LIST(combo->list) ); |
| 269 | |
| 270 | if (style & wxCB_READONLY) |
| 271 | gtk_entry_set_editable( GTK_ENTRY( combo->entry ), FALSE ); |
| 272 | |
| 273 | // "show" and "hide" events are generated when user click on the combobox button which popups a list |
| 274 | // this list is the "popwin" gtk widget |
| 275 | gtk_signal_connect( GTK_OBJECT(GTK_COMBO(combo)->popwin), "hide", |
| 276 | GTK_SIGNAL_FUNC(gtk_popup_hide_callback), (gpointer)this ); |
| 277 | gtk_signal_connect( GTK_OBJECT(GTK_COMBO(combo)->popwin), "show", |
| 278 | GTK_SIGNAL_FUNC(gtk_popup_show_callback), (gpointer)this ); |
| 279 | |
| 280 | gtk_signal_connect_after( GTK_OBJECT(combo->entry), "changed", |
| 281 | GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this ); |
| 282 | |
| 283 | gtk_signal_connect_after( GTK_OBJECT(combo->list), "select-child", |
| 284 | GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this ); |
| 285 | |
| 286 | SetInitialSize(size); // need this too because this is a wxControlWithItems |
| 287 | |
| 288 | // This is required for tool bar support |
| 289 | // wxSize setsize = GetSize(); |
| 290 | // gtk_widget_set_usize( m_widget, setsize.x, setsize.y ); |
| 291 | |
| 292 | return true; |
| 293 | } |
| 294 | |
| 295 | wxComboBox::~wxComboBox() |
| 296 | { |
| 297 | wxList::compatibility_iterator node = m_clientObjectList.GetFirst(); |
| 298 | while (node) |
| 299 | { |
| 300 | wxClientData *cd = (wxClientData*)node->GetData(); |
| 301 | if (cd) delete cd; |
| 302 | node = node->GetNext(); |
| 303 | } |
| 304 | m_clientObjectList.Clear(); |
| 305 | |
| 306 | m_clientDataList.Clear(); |
| 307 | } |
| 308 | |
| 309 | void wxComboBox::SetFocus() |
| 310 | { |
| 311 | if ( m_hasFocus ) |
| 312 | { |
| 313 | // don't do anything if we already have focus |
| 314 | return; |
| 315 | } |
| 316 | |
| 317 | gtk_widget_grab_focus( m_focusWidget ); |
| 318 | } |
| 319 | |
| 320 | int wxComboBox::DoInsertItems(const wxArrayStringsAdapter& items, |
| 321 | unsigned int pos, |
| 322 | void **clientData, |
| 323 | wxClientDataType type) |
| 324 | { |
| 325 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") ); |
| 326 | |
| 327 | DisableEvents(); |
| 328 | |
| 329 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 330 | |
| 331 | GtkRcStyle *style = CreateWidgetStyle(); |
| 332 | |
| 333 | const unsigned int count = items.GetCount(); |
| 334 | for( unsigned int i = 0; i < count; ++i, ++pos ) |
| 335 | { |
| 336 | GtkWidget * |
| 337 | list_item = gtk_list_item_new_with_label( wxGTK_CONV( items[i] ) ); |
| 338 | |
| 339 | if ( pos == GetCount() ) |
| 340 | { |
| 341 | gtk_container_add( GTK_CONTAINER(list), list_item ); |
| 342 | } |
| 343 | else // insert, not append |
| 344 | { |
| 345 | GList *gitem_list = g_list_alloc (); |
| 346 | gitem_list->data = list_item; |
| 347 | gtk_list_insert_items( GTK_LIST (list), gitem_list, pos ); |
| 348 | } |
| 349 | |
| 350 | if (GTK_WIDGET_REALIZED(m_widget)) |
| 351 | { |
| 352 | gtk_widget_realize( list_item ); |
| 353 | gtk_widget_realize( GTK_BIN(list_item)->child ); |
| 354 | |
| 355 | if (style) |
| 356 | { |
| 357 | gtk_widget_modify_style( GTK_WIDGET( list_item ), style ); |
| 358 | GtkBin *bin = GTK_BIN( list_item ); |
| 359 | GtkWidget *label = GTK_WIDGET( bin->child ); |
| 360 | gtk_widget_modify_style( label, style ); |
| 361 | } |
| 362 | |
| 363 | } |
| 364 | |
| 365 | gtk_widget_show( list_item ); |
| 366 | |
| 367 | if ( m_clientDataList.GetCount() < GetCount() ) |
| 368 | m_clientDataList.Insert( pos, NULL ); |
| 369 | if ( m_clientObjectList.GetCount() < GetCount() ) |
| 370 | m_clientObjectList.Insert( pos, NULL ); |
| 371 | |
| 372 | AssignNewItemClientData(pos, clientData, i, type); |
| 373 | } |
| 374 | |
| 375 | if ( style ) |
| 376 | gtk_rc_style_unref( style ); |
| 377 | |
| 378 | EnableEvents(); |
| 379 | |
| 380 | InvalidateBestSize(); |
| 381 | |
| 382 | return pos - 1; |
| 383 | } |
| 384 | |
| 385 | void wxComboBox::DoSetItemClientData(unsigned int n, void* clientData) |
| 386 | { |
| 387 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 388 | |
| 389 | wxList::compatibility_iterator node = m_clientDataList.Item( n ); |
| 390 | if (!node) return; |
| 391 | |
| 392 | node->SetData( (wxObject*) clientData ); |
| 393 | } |
| 394 | |
| 395 | void* wxComboBox::DoGetItemClientData(unsigned int n) const |
| 396 | { |
| 397 | wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") ); |
| 398 | |
| 399 | wxList::compatibility_iterator node = m_clientDataList.Item( n ); |
| 400 | |
| 401 | return node ? node->GetData() : NULL; |
| 402 | } |
| 403 | |
| 404 | void wxComboBox::DoClear() |
| 405 | { |
| 406 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 407 | |
| 408 | DisableEvents(); |
| 409 | |
| 410 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 411 | gtk_list_clear_items( GTK_LIST(list), 0, (int)GetCount() ); |
| 412 | |
| 413 | m_clientObjectList.Clear(); |
| 414 | |
| 415 | m_clientDataList.Clear(); |
| 416 | |
| 417 | EnableEvents(); |
| 418 | |
| 419 | InvalidateBestSize(); |
| 420 | } |
| 421 | |
| 422 | void wxComboBox::DoDeleteOneItem(unsigned int n) |
| 423 | { |
| 424 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 425 | |
| 426 | GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list ); |
| 427 | |
| 428 | GList *child = g_list_nth( listbox->children, n ); |
| 429 | |
| 430 | if (!child) |
| 431 | { |
| 432 | wxFAIL_MSG(wxT("wrong index")); |
| 433 | return; |
| 434 | } |
| 435 | |
| 436 | DisableEvents(); |
| 437 | |
| 438 | GList *list = g_list_append( NULL, child->data ); |
| 439 | gtk_list_remove_items( listbox, list ); |
| 440 | g_list_free( list ); |
| 441 | |
| 442 | wxList::compatibility_iterator node = m_clientObjectList.Item( n ); |
| 443 | if (node) |
| 444 | { |
| 445 | m_clientObjectList.Erase( node ); |
| 446 | } |
| 447 | |
| 448 | node = m_clientDataList.Item( n ); |
| 449 | if (node) |
| 450 | m_clientDataList.Erase( node ); |
| 451 | |
| 452 | EnableEvents(); |
| 453 | |
| 454 | InvalidateBestSize(); |
| 455 | } |
| 456 | |
| 457 | void wxComboBox::SetString(unsigned int n, const wxString &text) |
| 458 | { |
| 459 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 460 | |
| 461 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 462 | |
| 463 | GList *child = g_list_nth( GTK_LIST(list)->children, n ); |
| 464 | if (child) |
| 465 | { |
| 466 | GtkBin *bin = GTK_BIN( child->data ); |
| 467 | GtkLabel *label = GTK_LABEL( bin->child ); |
| 468 | gtk_label_set_text(label, wxGTK_CONV(text)); |
| 469 | } |
| 470 | else |
| 471 | { |
| 472 | wxFAIL_MSG( wxT("wxComboBox: wrong index") ); |
| 473 | } |
| 474 | |
| 475 | InvalidateBestSize(); |
| 476 | } |
| 477 | |
| 478 | int wxComboBox::FindString( const wxString &item, bool bCase ) const |
| 479 | { |
| 480 | wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid combobox") ); |
| 481 | |
| 482 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 483 | |
| 484 | GList *child = GTK_LIST(list)->children; |
| 485 | int count = 0; |
| 486 | while (child) |
| 487 | { |
| 488 | GtkBin *bin = GTK_BIN( child->data ); |
| 489 | GtkLabel *label = GTK_LABEL( bin->child ); |
| 490 | wxString str( label->label ); |
| 491 | if (item.IsSameAs( str , bCase ) ) |
| 492 | return count; |
| 493 | |
| 494 | count++; |
| 495 | child = child->next; |
| 496 | } |
| 497 | |
| 498 | return wxNOT_FOUND; |
| 499 | } |
| 500 | |
| 501 | int wxComboBox::GetSelection() const |
| 502 | { |
| 503 | // if the popup is currently opened, use the selection as it had been |
| 504 | // before it dropped down |
| 505 | return g_SelectionBeforePopup == wxID_NONE ? GetCurrentSelection() |
| 506 | : g_SelectionBeforePopup; |
| 507 | } |
| 508 | |
| 509 | int wxComboBox::GetCurrentSelection() const |
| 510 | { |
| 511 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") ); |
| 512 | |
| 513 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 514 | |
| 515 | GList *selection = GTK_LIST(list)->selection; |
| 516 | if (selection) |
| 517 | { |
| 518 | GList *child = GTK_LIST(list)->children; |
| 519 | int count = 0; |
| 520 | while (child) |
| 521 | { |
| 522 | if (child->data == selection->data) return count; |
| 523 | count++; |
| 524 | child = child->next; |
| 525 | } |
| 526 | } |
| 527 | |
| 528 | return wxNOT_FOUND; |
| 529 | } |
| 530 | |
| 531 | wxString wxComboBox::GetString(unsigned int n) const |
| 532 | { |
| 533 | wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid combobox") ); |
| 534 | |
| 535 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 536 | |
| 537 | wxString str; |
| 538 | GList *child = g_list_nth( GTK_LIST(list)->children, n ); |
| 539 | if (child) |
| 540 | { |
| 541 | GtkBin *bin = GTK_BIN( child->data ); |
| 542 | GtkLabel *label = GTK_LABEL( bin->child ); |
| 543 | str = wxString( label->label ); |
| 544 | } |
| 545 | else |
| 546 | { |
| 547 | wxFAIL_MSG( wxT("wxComboBox: wrong index") ); |
| 548 | } |
| 549 | |
| 550 | return str; |
| 551 | } |
| 552 | |
| 553 | wxString wxComboBox::GetStringSelection() const |
| 554 | { |
| 555 | wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid combobox") ); |
| 556 | |
| 557 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 558 | |
| 559 | GList *selection = GTK_LIST(list)->selection; |
| 560 | if (selection) |
| 561 | { |
| 562 | GtkBin *bin = GTK_BIN( selection->data ); |
| 563 | GtkLabel *label = GTK_LABEL( bin->child ); |
| 564 | wxString tmp( label->label ); |
| 565 | return tmp; |
| 566 | } |
| 567 | |
| 568 | wxFAIL_MSG( wxT("wxComboBox: no selection") ); |
| 569 | |
| 570 | return wxEmptyString; |
| 571 | } |
| 572 | |
| 573 | unsigned int wxComboBox::GetCount() const |
| 574 | { |
| 575 | wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") ); |
| 576 | |
| 577 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 578 | |
| 579 | GList *child = GTK_LIST(list)->children; |
| 580 | unsigned int count = 0; |
| 581 | while (child) { count++; child = child->next; } |
| 582 | return count; |
| 583 | } |
| 584 | |
| 585 | void wxComboBox::SetSelection( int n ) |
| 586 | { |
| 587 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 588 | |
| 589 | DisableEvents(); |
| 590 | |
| 591 | GtkWidget *list = GTK_COMBO(m_widget)->list; |
| 592 | gtk_list_unselect_item( GTK_LIST(list), m_prevSelection ); |
| 593 | gtk_list_select_item( GTK_LIST(list), n ); |
| 594 | m_prevSelection = n; |
| 595 | |
| 596 | EnableEvents(); |
| 597 | } |
| 598 | |
| 599 | wxString wxComboBox::GetValue() const |
| 600 | { |
| 601 | GtkEntry *entry = GTK_ENTRY( GTK_COMBO(m_widget)->entry ); |
| 602 | wxString tmp( wxGTK_CONV_BACK( gtk_entry_get_text( entry ) ) ); |
| 603 | |
| 604 | #if 0 |
| 605 | for (int i = 0; i < wxStrlen(tmp.c_str()) +1; i++) |
| 606 | { |
| 607 | wxChar c = tmp[i]; |
| 608 | printf( "%d ", (int) (c) ); |
| 609 | } |
| 610 | printf( "\n" ); |
| 611 | #endif |
| 612 | |
| 613 | return tmp; |
| 614 | } |
| 615 | |
| 616 | void wxComboBox::SetValue( const wxString& value ) |
| 617 | { |
| 618 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 619 | |
| 620 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 621 | gtk_entry_set_text( GTK_ENTRY(entry), wxGTK_CONV( value ) ); |
| 622 | |
| 623 | InvalidateBestSize(); |
| 624 | } |
| 625 | |
| 626 | void wxComboBox::WriteText(const wxString& value) |
| 627 | { |
| 628 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 629 | |
| 630 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 631 | GtkEditable * const edit = GTK_EDITABLE(entry); |
| 632 | |
| 633 | gtk_editable_delete_selection(edit); |
| 634 | gint len = gtk_editable_get_position(edit); |
| 635 | gtk_editable_insert_text(edit, wxGTK_CONV(value), -1, &len); |
| 636 | gtk_editable_set_position(edit, len); |
| 637 | } |
| 638 | |
| 639 | void wxComboBox::Copy() |
| 640 | { |
| 641 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 642 | |
| 643 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 644 | gtk_editable_copy_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG ); |
| 645 | } |
| 646 | |
| 647 | void wxComboBox::Cut() |
| 648 | { |
| 649 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 650 | |
| 651 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 652 | gtk_editable_cut_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG ); |
| 653 | } |
| 654 | |
| 655 | void wxComboBox::Paste() |
| 656 | { |
| 657 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 658 | |
| 659 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 660 | gtk_editable_paste_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG); |
| 661 | } |
| 662 | |
| 663 | void wxComboBox::Undo() |
| 664 | { |
| 665 | // TODO |
| 666 | } |
| 667 | |
| 668 | void wxComboBox::Redo() |
| 669 | { |
| 670 | // TODO |
| 671 | } |
| 672 | |
| 673 | void wxComboBox::SelectAll() |
| 674 | { |
| 675 | SetSelection(0, GetLastPosition()); |
| 676 | } |
| 677 | |
| 678 | bool wxComboBox::CanUndo() const |
| 679 | { |
| 680 | // TODO |
| 681 | return false; |
| 682 | } |
| 683 | |
| 684 | bool wxComboBox::CanRedo() const |
| 685 | { |
| 686 | // TODO |
| 687 | return false; |
| 688 | } |
| 689 | |
| 690 | bool wxComboBox::HasSelection() const |
| 691 | { |
| 692 | long from, to; |
| 693 | GetSelection(&from, &to); |
| 694 | return from != to; |
| 695 | } |
| 696 | |
| 697 | bool wxComboBox::CanCopy() const |
| 698 | { |
| 699 | // Can copy if there's a selection |
| 700 | return HasSelection(); |
| 701 | } |
| 702 | |
| 703 | bool wxComboBox::CanCut() const |
| 704 | { |
| 705 | return CanCopy() && IsEditable(); |
| 706 | } |
| 707 | |
| 708 | bool wxComboBox::CanPaste() const |
| 709 | { |
| 710 | // TODO: check for text on the clipboard |
| 711 | return IsEditable() ; |
| 712 | } |
| 713 | |
| 714 | bool wxComboBox::IsEditable() const |
| 715 | { |
| 716 | return !HasFlag(wxCB_READONLY); |
| 717 | } |
| 718 | |
| 719 | |
| 720 | void wxComboBox::SetInsertionPoint( long pos ) |
| 721 | { |
| 722 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 723 | |
| 724 | if ( pos == GetLastPosition() ) |
| 725 | pos = -1; |
| 726 | |
| 727 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 728 | gtk_entry_set_position( GTK_ENTRY(entry), (int)pos ); |
| 729 | } |
| 730 | |
| 731 | long wxComboBox::GetInsertionPoint() const |
| 732 | { |
| 733 | return (long) GET_EDITABLE_POS( GTK_COMBO(m_widget)->entry ); |
| 734 | } |
| 735 | |
| 736 | wxTextPos wxComboBox::GetLastPosition() const |
| 737 | { |
| 738 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 739 | int pos = GTK_ENTRY(entry)->text_length; |
| 740 | return (long) pos-1; |
| 741 | } |
| 742 | |
| 743 | void wxComboBox::Replace( long from, long to, const wxString& value ) |
| 744 | { |
| 745 | wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); |
| 746 | |
| 747 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 748 | gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to ); |
| 749 | if (value.IsNull()) return; |
| 750 | gint pos = (gint)to; |
| 751 | |
| 752 | #if wxUSE_UNICODE |
| 753 | wxCharBuffer buffer = wxConvUTF8.cWX2MB( value ); |
| 754 | gtk_editable_insert_text( GTK_EDITABLE(entry), (const char*) buffer, strlen( (const char*) buffer ), &pos ); |
| 755 | #else |
| 756 | gtk_editable_insert_text( GTK_EDITABLE(entry), value.c_str(), value.length(), &pos ); |
| 757 | #endif |
| 758 | } |
| 759 | |
| 760 | void wxComboBox::SetSelection( long from, long to ) |
| 761 | { |
| 762 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 763 | gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to ); |
| 764 | } |
| 765 | |
| 766 | void wxComboBox::GetSelection( long* from, long* to ) const |
| 767 | { |
| 768 | if (IsEditable()) |
| 769 | { |
| 770 | GtkEditable *editable = GTK_EDITABLE(GTK_COMBO(m_widget)->entry); |
| 771 | *from = (long) editable->selection_start_pos; |
| 772 | *to = (long) editable->selection_end_pos; |
| 773 | } |
| 774 | } |
| 775 | |
| 776 | void wxComboBox::SetEditable( bool editable ) |
| 777 | { |
| 778 | GtkWidget *entry = GTK_COMBO(m_widget)->entry; |
| 779 | gtk_entry_set_editable( GTK_ENTRY(entry), editable ); |
| 780 | } |
| 781 | |
| 782 | void wxComboBox::OnChar( wxKeyEvent &event ) |
| 783 | { |
| 784 | if ( event.GetKeyCode() == WXK_RETURN ) |
| 785 | { |
| 786 | // GTK automatically selects an item if its in the list |
| 787 | wxCommandEvent eventEnter(wxEVT_COMMAND_TEXT_ENTER, GetId()); |
| 788 | eventEnter.SetString( GetValue() ); |
| 789 | eventEnter.SetInt( GetSelection() ); |
| 790 | eventEnter.SetEventObject( this ); |
| 791 | |
| 792 | if (!HandleWindowEvent( eventEnter )) |
| 793 | { |
| 794 | // This will invoke the dialog default action, such |
| 795 | // as the clicking the default button. |
| 796 | |
| 797 | wxWindow *top_frame = m_parent; |
| 798 | while (top_frame->GetParent() && !(top_frame->IsTopLevel())) |
| 799 | top_frame = top_frame->GetParent(); |
| 800 | |
| 801 | if (top_frame && GTK_IS_WINDOW(top_frame->m_widget)) |
| 802 | { |
| 803 | GtkWindow *window = GTK_WINDOW(top_frame->m_widget); |
| 804 | |
| 805 | if (window->default_widget) |
| 806 | gtk_widget_activate (window->default_widget); |
| 807 | } |
| 808 | } |
| 809 | |
| 810 | // Catch GTK event so that GTK doesn't open the drop |
| 811 | // down list upon RETURN. |
| 812 | return; |
| 813 | } |
| 814 | |
| 815 | event.Skip(); |
| 816 | } |
| 817 | |
| 818 | void wxComboBox::DisableEvents() |
| 819 | { |
| 820 | gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(m_widget)->list), |
| 821 | GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this ); |
| 822 | gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(m_widget)->entry), |
| 823 | GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this ); |
| 824 | } |
| 825 | |
| 826 | void wxComboBox::EnableEvents() |
| 827 | { |
| 828 | gtk_signal_connect_after( GTK_OBJECT(GTK_COMBO(m_widget)->list), "select-child", |
| 829 | GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this ); |
| 830 | gtk_signal_connect_after( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed", |
| 831 | GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this ); |
| 832 | } |
| 833 | |
| 834 | void wxComboBox::OnSize( wxSizeEvent &event ) |
| 835 | { |
| 836 | // NB: In some situations (e.g. on non-first page of a wizard, if the |
| 837 | // size used is default size), GtkCombo widget is resized correctly, |
| 838 | // but it's look is not updated, it's rendered as if it was much wider. |
| 839 | // No other widgets are affected, so it looks like a bug in GTK+. |
| 840 | // Manually requesting resize calculation (as gtk_pizza_set_size does) |
| 841 | // fixes it. |
| 842 | if (GTK_WIDGET_VISIBLE(m_widget)) |
| 843 | gtk_widget_queue_resize(m_widget); |
| 844 | |
| 845 | event.Skip(); |
| 846 | } |
| 847 | |
| 848 | void wxComboBox::DoApplyWidgetStyle(GtkRcStyle *style) |
| 849 | { |
| 850 | // gtk_widget_modify_style( GTK_COMBO(m_widget)->button, syle ); |
| 851 | |
| 852 | gtk_widget_modify_style( GTK_COMBO(m_widget)->entry, style ); |
| 853 | gtk_widget_modify_style( GTK_COMBO(m_widget)->list, style ); |
| 854 | |
| 855 | GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list ); |
| 856 | GList *child = list->children; |
| 857 | while (child) |
| 858 | { |
| 859 | gtk_widget_modify_style( GTK_WIDGET(child->data), style ); |
| 860 | |
| 861 | GtkBin *bin = GTK_BIN(child->data); |
| 862 | gtk_widget_modify_style( bin->child, style ); |
| 863 | |
| 864 | child = child->next; |
| 865 | } |
| 866 | } |
| 867 | |
| 868 | GtkWidget* wxComboBox::GetConnectWidget() |
| 869 | { |
| 870 | return GTK_COMBO(m_widget)->entry; |
| 871 | } |
| 872 | |
| 873 | bool wxComboBox::IsOwnGtkWindow( GdkWindow *window ) |
| 874 | { |
| 875 | return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) || |
| 876 | (window == GTK_COMBO(m_widget)->button->window ) ); |
| 877 | } |
| 878 | |
| 879 | wxSize wxComboBox::DoGetBestSize() const |
| 880 | { |
| 881 | wxSize ret( wxControl::DoGetBestSize() ); |
| 882 | |
| 883 | // we know better our horizontal extent: it depends on the longest string |
| 884 | // in the combobox |
| 885 | if ( m_widget ) |
| 886 | { |
| 887 | int width; |
| 888 | unsigned int count = GetCount(); |
| 889 | for ( unsigned int n = 0; n < count; n++ ) |
| 890 | { |
| 891 | GetTextExtent(GetString(n), &width, NULL, NULL, NULL ); |
| 892 | if ( width > ret.x ) |
| 893 | ret.x = width; |
| 894 | } |
| 895 | } |
| 896 | |
| 897 | // empty combobox should have some reasonable default size too |
| 898 | if ( ret.x < 100 ) |
| 899 | ret.x = 100; |
| 900 | |
| 901 | CacheBestSize(ret); |
| 902 | return ret; |
| 903 | } |
| 904 | |
| 905 | // static |
| 906 | wxVisualAttributes |
| 907 | wxComboBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) |
| 908 | { |
| 909 | return GetDefaultAttributesFromGTKWidget(gtk_combo_new, true); |
| 910 | } |
| 911 | |
| 912 | // ---------------------------------------------------------------------------- |
| 913 | // standard event handling |
| 914 | // ---------------------------------------------------------------------------- |
| 915 | |
| 916 | void wxComboBox::OnCut(wxCommandEvent& WXUNUSED(event)) |
| 917 | { |
| 918 | Cut(); |
| 919 | } |
| 920 | |
| 921 | void wxComboBox::OnCopy(wxCommandEvent& WXUNUSED(event)) |
| 922 | { |
| 923 | Copy(); |
| 924 | } |
| 925 | |
| 926 | void wxComboBox::OnPaste(wxCommandEvent& WXUNUSED(event)) |
| 927 | { |
| 928 | Paste(); |
| 929 | } |
| 930 | |
| 931 | void wxComboBox::OnUndo(wxCommandEvent& WXUNUSED(event)) |
| 932 | { |
| 933 | Undo(); |
| 934 | } |
| 935 | |
| 936 | void wxComboBox::OnRedo(wxCommandEvent& WXUNUSED(event)) |
| 937 | { |
| 938 | Redo(); |
| 939 | } |
| 940 | |
| 941 | void wxComboBox::OnDelete(wxCommandEvent& WXUNUSED(event)) |
| 942 | { |
| 943 | long from, to; |
| 944 | GetSelection(& from, & to); |
| 945 | if (from != -1 && to != -1) |
| 946 | Remove(from, to); |
| 947 | } |
| 948 | |
| 949 | void wxComboBox::OnSelectAll(wxCommandEvent& WXUNUSED(event)) |
| 950 | { |
| 951 | SetSelection(-1, -1); |
| 952 | } |
| 953 | |
| 954 | void wxComboBox::OnUpdateCut(wxUpdateUIEvent& event) |
| 955 | { |
| 956 | event.Enable( CanCut() ); |
| 957 | } |
| 958 | |
| 959 | void wxComboBox::OnUpdateCopy(wxUpdateUIEvent& event) |
| 960 | { |
| 961 | event.Enable( CanCopy() ); |
| 962 | } |
| 963 | |
| 964 | void wxComboBox::OnUpdatePaste(wxUpdateUIEvent& event) |
| 965 | { |
| 966 | event.Enable( CanPaste() ); |
| 967 | } |
| 968 | |
| 969 | void wxComboBox::OnUpdateUndo(wxUpdateUIEvent& event) |
| 970 | { |
| 971 | event.Enable( CanUndo() ); |
| 972 | } |
| 973 | |
| 974 | void wxComboBox::OnUpdateRedo(wxUpdateUIEvent& event) |
| 975 | { |
| 976 | event.Enable( CanRedo() ); |
| 977 | } |
| 978 | |
| 979 | void wxComboBox::OnUpdateDelete(wxUpdateUIEvent& event) |
| 980 | { |
| 981 | event.Enable(HasSelection() && IsEditable()) ; |
| 982 | } |
| 983 | |
| 984 | void wxComboBox::OnUpdateSelectAll(wxUpdateUIEvent& event) |
| 985 | { |
| 986 | event.Enable(GetLastPosition() > 0); |
| 987 | } |
| 988 | |
| 989 | #endif |