| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: choice.cpp |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // Id: $Id$ |
| 6 | // Copyright: (c) 1998 Robert Roebling |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | |
| 11 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 12 | #pragma implementation "choice.h" |
| 13 | #endif |
| 14 | |
| 15 | #include "wx/defs.h" |
| 16 | |
| 17 | #if wxUSE_CHOICE |
| 18 | |
| 19 | #include "wx/choice.h" |
| 20 | #include "wx/arrstr.h" |
| 21 | |
| 22 | #include "wx/gtk/private.h" |
| 23 | |
| 24 | //----------------------------------------------------------------------------- |
| 25 | // idle system |
| 26 | //----------------------------------------------------------------------------- |
| 27 | |
| 28 | extern void wxapp_install_idle_handler(); |
| 29 | extern bool g_isIdle; |
| 30 | |
| 31 | //----------------------------------------------------------------------------- |
| 32 | // data |
| 33 | //----------------------------------------------------------------------------- |
| 34 | |
| 35 | extern bool g_blockEventsOnDrag; |
| 36 | |
| 37 | //----------------------------------------------------------------------------- |
| 38 | // "activate" |
| 39 | //----------------------------------------------------------------------------- |
| 40 | |
| 41 | static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice ) |
| 42 | { |
| 43 | if (g_isIdle) |
| 44 | wxapp_install_idle_handler(); |
| 45 | |
| 46 | if (!choice->m_hasVMT) return; |
| 47 | |
| 48 | if (g_blockEventsOnDrag) return; |
| 49 | |
| 50 | int selection = wxNOT_FOUND; |
| 51 | |
| 52 | #ifdef __WXGTK20__ |
| 53 | selection = gtk_option_menu_get_history( GTK_OPTION_MENU(choice->GetHandle()) ); |
| 54 | #else |
| 55 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(choice->GetHandle()) ) ); |
| 56 | int count = 0; |
| 57 | |
| 58 | GList *child = menu_shell->children; |
| 59 | while (child) |
| 60 | { |
| 61 | GtkBin *bin = GTK_BIN( child->data ); |
| 62 | if (!bin->child) |
| 63 | { |
| 64 | selection = count; |
| 65 | break; |
| 66 | } |
| 67 | child = child->next; |
| 68 | count++; |
| 69 | } |
| 70 | #endif |
| 71 | choice->m_selection_hack = selection; |
| 72 | |
| 73 | wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() ); |
| 74 | int n = choice->GetSelection(); |
| 75 | |
| 76 | event.SetInt( n ); |
| 77 | event.SetString( choice->GetStringSelection() ); |
| 78 | event.SetEventObject(choice); |
| 79 | |
| 80 | if ( choice->HasClientObjectData() ) |
| 81 | event.SetClientObject( choice->GetClientObject(n) ); |
| 82 | else if ( choice->HasClientUntypedData() ) |
| 83 | event.SetClientData( choice->GetClientData(n) ); |
| 84 | |
| 85 | choice->GetEventHandler()->ProcessEvent(event); |
| 86 | } |
| 87 | |
| 88 | //----------------------------------------------------------------------------- |
| 89 | // wxChoice |
| 90 | //----------------------------------------------------------------------------- |
| 91 | |
| 92 | IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl) |
| 93 | |
| 94 | wxChoice::wxChoice() |
| 95 | { |
| 96 | m_strings = (wxSortedArrayString *)NULL; |
| 97 | } |
| 98 | |
| 99 | bool wxChoice::Create( wxWindow *parent, wxWindowID id, |
| 100 | const wxPoint &pos, const wxSize &size, |
| 101 | const wxArrayString& choices, |
| 102 | long style, const wxValidator& validator, |
| 103 | const wxString &name ) |
| 104 | { |
| 105 | wxCArrayString chs(choices); |
| 106 | |
| 107 | return Create( parent, id, pos, size, chs.GetCount(), chs.GetStrings(), |
| 108 | style, validator, name ); |
| 109 | } |
| 110 | |
| 111 | bool wxChoice::Create( wxWindow *parent, wxWindowID id, |
| 112 | const wxPoint &pos, const wxSize &size, |
| 113 | int n, const wxString choices[], |
| 114 | long style, const wxValidator& validator, const wxString &name ) |
| 115 | { |
| 116 | m_needParent = TRUE; |
| 117 | #if (GTK_MINOR_VERSION > 0) |
| 118 | m_acceptsFocus = TRUE; |
| 119 | #endif |
| 120 | |
| 121 | if (!PreCreation( parent, pos, size ) || |
| 122 | !CreateBase( parent, id, pos, size, style, validator, name )) |
| 123 | { |
| 124 | wxFAIL_MSG( wxT("wxChoice creation failed") ); |
| 125 | return FALSE; |
| 126 | } |
| 127 | |
| 128 | m_widget = gtk_option_menu_new(); |
| 129 | |
| 130 | if ( style & wxCB_SORT ) |
| 131 | { |
| 132 | // if our m_strings != NULL, DoAppend() will check for it and insert |
| 133 | // items in the correct order |
| 134 | m_strings = new wxSortedArrayString; |
| 135 | } |
| 136 | |
| 137 | // begin with no selection |
| 138 | m_selection_hack = wxNOT_FOUND; |
| 139 | |
| 140 | GtkWidget *menu = gtk_menu_new(); |
| 141 | |
| 142 | for (int i = 0; i < n; i++) |
| 143 | { |
| 144 | GtkAddHelper(menu, i, choices[i]); |
| 145 | } |
| 146 | |
| 147 | gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu ); |
| 148 | |
| 149 | m_parent->DoAddChild( this ); |
| 150 | |
| 151 | PostCreation(size); |
| 152 | SetBestSize(size); // need this too because this is a wxControlWithItems |
| 153 | |
| 154 | return TRUE; |
| 155 | } |
| 156 | |
| 157 | wxChoice::~wxChoice() |
| 158 | { |
| 159 | Clear(); |
| 160 | |
| 161 | delete m_strings; |
| 162 | } |
| 163 | |
| 164 | int wxChoice::DoAppend( const wxString &item ) |
| 165 | { |
| 166 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") ); |
| 167 | |
| 168 | GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ); |
| 169 | |
| 170 | return GtkAddHelper(menu, GetCount(), item); |
| 171 | } |
| 172 | |
| 173 | int wxChoice::DoInsert( const wxString &item, int pos ) |
| 174 | { |
| 175 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") ); |
| 176 | wxCHECK_MSG( (pos>=0) && (pos<=GetCount()), -1, wxT("invalid index")); |
| 177 | |
| 178 | if (pos == GetCount()) |
| 179 | return DoAppend(item); |
| 180 | |
| 181 | GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ); |
| 182 | |
| 183 | // if the item to insert is at or before the selection, and the selection is valid |
| 184 | if ((pos <= m_selection_hack) && (m_selection_hack != wxNOT_FOUND)) |
| 185 | { |
| 186 | // move the selection forward one |
| 187 | m_selection_hack++; |
| 188 | } |
| 189 | |
| 190 | return GtkAddHelper(menu, pos, item); |
| 191 | } |
| 192 | |
| 193 | void wxChoice::DoSetItemClientData( int n, void* clientData ) |
| 194 | { |
| 195 | wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") ); |
| 196 | |
| 197 | wxList::compatibility_iterator node = m_clientList.Item( n ); |
| 198 | wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientData") ); |
| 199 | |
| 200 | node->SetData( (wxObject*) clientData ); |
| 201 | } |
| 202 | |
| 203 | void* wxChoice::DoGetItemClientData( int n ) const |
| 204 | { |
| 205 | wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid choice control") ); |
| 206 | |
| 207 | wxList::compatibility_iterator node = m_clientList.Item( n ); |
| 208 | wxCHECK_MSG( node, NULL, wxT("invalid index in wxChoice::DoGetItemClientData") ); |
| 209 | |
| 210 | return node->GetData(); |
| 211 | } |
| 212 | |
| 213 | void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData ) |
| 214 | { |
| 215 | wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") ); |
| 216 | |
| 217 | wxList::compatibility_iterator node = m_clientList.Item( n ); |
| 218 | wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientObject") ); |
| 219 | |
| 220 | // wxItemContainer already deletes data for us |
| 221 | |
| 222 | node->SetData( (wxObject*) clientData ); |
| 223 | } |
| 224 | |
| 225 | wxClientData* wxChoice::DoGetItemClientObject( int n ) const |
| 226 | { |
| 227 | wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid choice control") ); |
| 228 | |
| 229 | wxList::compatibility_iterator node = m_clientList.Item( n ); |
| 230 | wxCHECK_MSG( node, (wxClientData *)NULL, |
| 231 | wxT("invalid index in wxChoice::DoGetItemClientObject") ); |
| 232 | |
| 233 | return (wxClientData*) node->GetData(); |
| 234 | } |
| 235 | |
| 236 | void wxChoice::Clear() |
| 237 | { |
| 238 | wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); |
| 239 | |
| 240 | gtk_option_menu_remove_menu( GTK_OPTION_MENU(m_widget) ); |
| 241 | GtkWidget *menu = gtk_menu_new(); |
| 242 | gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu ); |
| 243 | |
| 244 | if ( HasClientObjectData() ) |
| 245 | { |
| 246 | // destroy the data (due to Robert's idea of using wxList<wxObject> |
| 247 | // and not wxList<wxClientData> we can't just say |
| 248 | // m_clientList.DeleteContents(TRUE) - this would crash! |
| 249 | wxList::compatibility_iterator node = m_clientList.GetFirst(); |
| 250 | while ( node ) |
| 251 | { |
| 252 | delete (wxClientData *)node->GetData(); |
| 253 | node = node->GetNext(); |
| 254 | } |
| 255 | } |
| 256 | m_clientList.Clear(); |
| 257 | |
| 258 | if ( m_strings ) |
| 259 | m_strings->Clear(); |
| 260 | |
| 261 | // begin with no selection |
| 262 | m_selection_hack = wxNOT_FOUND; |
| 263 | } |
| 264 | |
| 265 | void wxChoice::Delete( int n ) |
| 266 | { |
| 267 | wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); |
| 268 | |
| 269 | // VZ: apparently GTK+ doesn't have a built-in function to do it (not even |
| 270 | // in 2.0), hence this dumb implementation -- still better than nothing |
| 271 | int i, |
| 272 | count = GetCount(); |
| 273 | |
| 274 | wxCHECK_RET( n >= 0 && n < count, _T("invalid index in wxChoice::Delete") ); |
| 275 | |
| 276 | // if the item to delete is before the selection, and the selection is valid |
| 277 | if ((n < m_selection_hack) && (m_selection_hack != wxNOT_FOUND)) |
| 278 | { |
| 279 | // move the selection back one |
| 280 | m_selection_hack--; |
| 281 | } |
| 282 | else if (n == m_selection_hack) |
| 283 | { |
| 284 | // invalidate the selection |
| 285 | m_selection_hack = wxNOT_FOUND; |
| 286 | } |
| 287 | |
| 288 | const bool hasClientData = m_clientDataItemsType != wxClientData_None; |
| 289 | const bool hasObjectData = m_clientDataItemsType == wxClientData_Object; |
| 290 | |
| 291 | wxList::compatibility_iterator node = m_clientList.GetFirst(); |
| 292 | |
| 293 | wxArrayString items; |
| 294 | wxArrayPtrVoid itemsData; |
| 295 | items.Alloc(count); |
| 296 | for ( i = 0; i < count; i++ ) |
| 297 | { |
| 298 | if ( i != n ) |
| 299 | { |
| 300 | items.Add(GetString(i)); |
| 301 | if ( hasClientData ) |
| 302 | { |
| 303 | // also save the client data |
| 304 | itemsData.Add(node->GetData()); |
| 305 | } |
| 306 | } |
| 307 | else // need to delete the client object too |
| 308 | { |
| 309 | if ( hasObjectData ) |
| 310 | { |
| 311 | delete (wxClientData *)node->GetData(); |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | if ( hasClientData ) |
| 316 | { |
| 317 | node = node->GetNext(); |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | if ( hasObjectData ) |
| 322 | { |
| 323 | // prevent Clear() from destroying all client data |
| 324 | m_clientDataItemsType = wxClientData_None; |
| 325 | } |
| 326 | |
| 327 | Clear(); |
| 328 | |
| 329 | for ( i = 0; i < count - 1; i++ ) |
| 330 | { |
| 331 | Append(items[i]); |
| 332 | |
| 333 | if ( hasObjectData ) |
| 334 | SetClientObject(i, (wxClientData *)itemsData[i]); |
| 335 | else if ( hasClientData ) |
| 336 | SetClientData(i, itemsData[i]); |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | int wxChoice::FindString( const wxString &string ) const |
| 341 | { |
| 342 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") ); |
| 343 | |
| 344 | // If you read this code once and you think you understand |
| 345 | // it, then you are very wrong. Robert Roebling. |
| 346 | |
| 347 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); |
| 348 | int count = 0; |
| 349 | GList *child = menu_shell->children; |
| 350 | while (child) |
| 351 | { |
| 352 | GtkBin *bin = GTK_BIN( child->data ); |
| 353 | GtkLabel *label = (GtkLabel *) NULL; |
| 354 | if (bin->child) |
| 355 | label = GTK_LABEL(bin->child); |
| 356 | if (!label) |
| 357 | label = GTK_LABEL( BUTTON_CHILD(m_widget) ); |
| 358 | |
| 359 | wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); |
| 360 | |
| 361 | #ifdef __WXGTK20__ |
| 362 | wxString tmp( wxGTK_CONV_BACK( gtk_label_get_text( label) ) ); |
| 363 | #else |
| 364 | wxString tmp( label->label ); |
| 365 | #endif |
| 366 | if (string == tmp) |
| 367 | return count; |
| 368 | |
| 369 | child = child->next; |
| 370 | count++; |
| 371 | } |
| 372 | |
| 373 | return -1; |
| 374 | } |
| 375 | |
| 376 | int wxChoice::GetSelection() const |
| 377 | { |
| 378 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") ); |
| 379 | |
| 380 | return m_selection_hack; |
| 381 | |
| 382 | } |
| 383 | |
| 384 | void wxChoice::SetString( int n, const wxString& str ) |
| 385 | { |
| 386 | wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); |
| 387 | |
| 388 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); |
| 389 | int count = 0; |
| 390 | GList *child = menu_shell->children; |
| 391 | while (child) |
| 392 | { |
| 393 | GtkBin *bin = GTK_BIN( child->data ); |
| 394 | if (count == n) |
| 395 | { |
| 396 | GtkLabel *label = (GtkLabel *) NULL; |
| 397 | if (bin->child) |
| 398 | label = GTK_LABEL(bin->child); |
| 399 | if (!label) |
| 400 | label = GTK_LABEL( BUTTON_CHILD(m_widget) ); |
| 401 | |
| 402 | wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); |
| 403 | |
| 404 | gtk_label_set_text( label, wxGTK_CONV( str ) ); |
| 405 | |
| 406 | return; |
| 407 | } |
| 408 | child = child->next; |
| 409 | count++; |
| 410 | } |
| 411 | } |
| 412 | |
| 413 | wxString wxChoice::GetString( int n ) const |
| 414 | { |
| 415 | wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid choice") ); |
| 416 | |
| 417 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); |
| 418 | int count = 0; |
| 419 | GList *child = menu_shell->children; |
| 420 | while (child) |
| 421 | { |
| 422 | GtkBin *bin = GTK_BIN( child->data ); |
| 423 | if (count == n) |
| 424 | { |
| 425 | GtkLabel *label = (GtkLabel *) NULL; |
| 426 | if (bin->child) |
| 427 | label = GTK_LABEL(bin->child); |
| 428 | if (!label) |
| 429 | label = GTK_LABEL( BUTTON_CHILD(m_widget) ); |
| 430 | |
| 431 | wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); |
| 432 | |
| 433 | #ifdef __WXGTK20__ |
| 434 | return wxString( wxGTK_CONV_BACK( gtk_label_get_text( label) ) ); |
| 435 | #else |
| 436 | return wxString( label->label ); |
| 437 | #endif |
| 438 | } |
| 439 | child = child->next; |
| 440 | count++; |
| 441 | } |
| 442 | |
| 443 | wxFAIL_MSG( wxT("wxChoice: invalid index in GetString()") ); |
| 444 | |
| 445 | return wxT(""); |
| 446 | } |
| 447 | |
| 448 | int wxChoice::GetCount() const |
| 449 | { |
| 450 | wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid choice") ); |
| 451 | |
| 452 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); |
| 453 | int count = 0; |
| 454 | GList *child = menu_shell->children; |
| 455 | while (child) |
| 456 | { |
| 457 | count++; |
| 458 | child = child->next; |
| 459 | } |
| 460 | return count; |
| 461 | } |
| 462 | |
| 463 | void wxChoice::SetSelection( int n ) |
| 464 | { |
| 465 | wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); |
| 466 | |
| 467 | int tmp = n; |
| 468 | gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp ); |
| 469 | |
| 470 | // set the local selection variable manually |
| 471 | if ((n >= 0) && (n < GetCount())) |
| 472 | { |
| 473 | // a valid selection has been made |
| 474 | m_selection_hack = n; |
| 475 | } |
| 476 | else if ((n == wxNOT_FOUND) || (GetCount() == 0)) |
| 477 | { |
| 478 | // invalidates the selection if there are no items |
| 479 | // or if it is specifically set to wxNOT_FOUND |
| 480 | m_selection_hack = wxNOT_FOUND; |
| 481 | } |
| 482 | else |
| 483 | { |
| 484 | // this selects the first item by default if the selection is out of bounds |
| 485 | m_selection_hack = 0; |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | void wxChoice::DoApplyWidgetStyle(GtkRcStyle *style) |
| 490 | { |
| 491 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); |
| 492 | |
| 493 | gtk_widget_modify_style( m_widget, style ); |
| 494 | gtk_widget_modify_style( GTK_WIDGET( menu_shell ), style ); |
| 495 | |
| 496 | GList *child = menu_shell->children; |
| 497 | while (child) |
| 498 | { |
| 499 | gtk_widget_modify_style( GTK_WIDGET( child->data ), style ); |
| 500 | |
| 501 | GtkBin *bin = GTK_BIN( child->data ); |
| 502 | GtkWidget *label = (GtkWidget *) NULL; |
| 503 | if (bin->child) |
| 504 | label = bin->child; |
| 505 | if (!label) |
| 506 | label = BUTTON_CHILD(m_widget); |
| 507 | |
| 508 | gtk_widget_modify_style( label, style ); |
| 509 | |
| 510 | child = child->next; |
| 511 | } |
| 512 | } |
| 513 | |
| 514 | int wxChoice::GtkAddHelper(GtkWidget *menu, int pos, const wxString& item) |
| 515 | { |
| 516 | wxCHECK_MSG((pos>=0) && (pos<=(int)m_clientList.GetCount()), -1, wxT("invalid index")); |
| 517 | |
| 518 | GtkWidget *menu_item = gtk_menu_item_new_with_label( wxGTK_CONV( item ) ); |
| 519 | |
| 520 | size_t index; |
| 521 | if ( m_strings ) |
| 522 | { |
| 523 | // sorted control, need to insert at the correct index |
| 524 | index = m_strings->Add(item); |
| 525 | |
| 526 | gtk_menu_insert( GTK_MENU(menu), menu_item, index ); |
| 527 | |
| 528 | if ( index ) |
| 529 | { |
| 530 | m_clientList.Insert( m_clientList.Item(index - 1), |
| 531 | (wxObject*) NULL ); |
| 532 | } |
| 533 | else |
| 534 | { |
| 535 | m_clientList.Insert( (wxObject*) NULL ); |
| 536 | } |
| 537 | } |
| 538 | else |
| 539 | { |
| 540 | // don't call wxChoice::GetCount() from here because it doesn't work |
| 541 | // if we're called from ctor (and GtkMenuShell is still NULL) |
| 542 | |
| 543 | // normal control, just append |
| 544 | if (pos == (int)m_clientList.GetCount()) |
| 545 | { |
| 546 | gtk_menu_append( GTK_MENU(menu), menu_item ); |
| 547 | m_clientList.Append( (wxObject*) NULL ); |
| 548 | index = m_clientList.GetCount() - 1; |
| 549 | } |
| 550 | else |
| 551 | { |
| 552 | gtk_menu_insert( GTK_MENU(menu), menu_item, pos ); |
| 553 | m_clientList.Insert( pos, (wxObject*) NULL ); |
| 554 | index = pos; |
| 555 | } |
| 556 | } |
| 557 | |
| 558 | if (GTK_WIDGET_REALIZED(m_widget)) |
| 559 | { |
| 560 | gtk_widget_realize( menu_item ); |
| 561 | gtk_widget_realize( GTK_BIN(menu_item)->child ); |
| 562 | |
| 563 | ApplyWidgetStyle(); |
| 564 | } |
| 565 | |
| 566 | // The best size of a wxChoice should probably |
| 567 | // be changed everytime the control has been |
| 568 | // changed, but at least after adding an item |
| 569 | // it has to change. Adapted from Matt Ownby. |
| 570 | InvalidateBestSize(); |
| 571 | |
| 572 | gtk_signal_connect( GTK_OBJECT( menu_item ), "activate", |
| 573 | GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this ); |
| 574 | |
| 575 | gtk_widget_show( menu_item ); |
| 576 | |
| 577 | // return the index of the item in the control |
| 578 | return index; |
| 579 | } |
| 580 | |
| 581 | wxSize wxChoice::DoGetBestSize() const |
| 582 | { |
| 583 | wxSize ret( wxControl::DoGetBestSize() ); |
| 584 | |
| 585 | // we know better our horizontal extent: it depends on the longest string |
| 586 | // we have |
| 587 | ret.x = 0; |
| 588 | if ( m_widget ) |
| 589 | { |
| 590 | int width; |
| 591 | size_t count = GetCount(); |
| 592 | for ( size_t n = 0; n < count; n++ ) |
| 593 | { |
| 594 | GetTextExtent( GetString(n), &width, NULL, NULL, NULL ); |
| 595 | if ( width > ret.x ) |
| 596 | ret.x = width; |
| 597 | } |
| 598 | |
| 599 | // add extra for the choice "=" button |
| 600 | |
| 601 | // VZ: I don't know how to get the right value, it seems to be in |
| 602 | // GtkOptionMenuProps struct from gtkoptionmenu.c but we can't get |
| 603 | // to it - maybe we can use gtk_option_menu_size_request() for this |
| 604 | // somehow? |
| 605 | // |
| 606 | // This default value works only for the default GTK+ theme (i.e. |
| 607 | // no theme at all) (FIXME) |
| 608 | static const int widthChoiceIndicator = 35; |
| 609 | ret.x += widthChoiceIndicator; |
| 610 | } |
| 611 | |
| 612 | // but not less than the minimal width |
| 613 | if ( ret.x < 80 ) |
| 614 | ret.x = 80; |
| 615 | |
| 616 | // If this request_size is called with no entries then |
| 617 | // the returned height is wrong. Give it a reasonable |
| 618 | // default value. |
| 619 | if (ret.y <= 18) |
| 620 | ret.y = 8 + GetCharHeight(); |
| 621 | |
| 622 | CacheBestSize(ret); |
| 623 | return ret; |
| 624 | } |
| 625 | |
| 626 | bool wxChoice::IsOwnGtkWindow( GdkWindow *window ) |
| 627 | { |
| 628 | #ifdef __WXGTK20__ |
| 629 | return GTK_BUTTON(m_widget)->event_window; |
| 630 | #else |
| 631 | return (window == m_widget->window); |
| 632 | #endif |
| 633 | } |
| 634 | |
| 635 | // static |
| 636 | wxVisualAttributes |
| 637 | wxChoice::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) |
| 638 | { |
| 639 | return GetDefaultAttributesFromGTKWidget(gtk_option_menu_new); |
| 640 | } |
| 641 | |
| 642 | |
| 643 | #endif // wxUSE_CHOICE |
| 644 | |