src/gtk/combobox.cpp

   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 #ifdef __GNUG__
  11 #pragma implementation "combobox.h"
  12 #endif
  13
  14
  15 #include "wx/combobox.h"
  16
  17 #include <wx/intl.h>
  18
  19 #include "gdk/gdk.h"
  20 #include "gtk/gtk.h"
  21
  22 //-----------------------------------------------------------------------------
  23 // data
  24 //-----------------------------------------------------------------------------
  25
  26 extern bool   g_blockEventsOnDrag;
  27
  28 //-----------------------------------------------------------------------------
  29 // "select"
  30 //-----------------------------------------------------------------------------
  31
  32 static void gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
  33 {
  34     if (!combo->HasVMT()) return;
  35     if (g_blockEventsOnDrag) return;
  36
  37     if (combo->m_alreadySent)
  38     {
  39         combo->m_alreadySent = FALSE;
  40         return;
  41     }
  42
  43     combo->m_alreadySent = TRUE;
  44
  45     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, combo->GetId());
  46     event.SetInt( combo->GetSelection() );
  47     wxString tmp( combo->GetStringSelection() );
  48     event.SetString( WXSTRINGCAST(tmp) );
  49     event.SetEventObject(combo);
  50     combo->GetEventHandler()->ProcessEvent(event);
  51 }
  52
  53 //-----------------------------------------------------------------------------
  54 // wxComboBox
  55 //-----------------------------------------------------------------------------
  56
  57 IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
  58
  59 BEGIN_EVENT_TABLE(wxComboBox, wxControl)
  60     EVT_SIZE(wxComboBox::OnSize)
  61 END_EVENT_TABLE()
  62
  63 bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
  64                          const wxPoint& pos, const wxSize& size,
  65                          int n, const wxString choices[],
  66                          long style, const wxValidator& validator,
  67                          const wxString& name )
  68 {
  69     m_alreadySent = FALSE;
  70     m_needParent = TRUE;
  71     m_acceptsFocus = TRUE;
  72
  73     PreCreation( parent, id, pos, size, style, name );
  74
  75     SetValidator( validator );
  76
  77     m_widget = gtk_combo_new();
  78
  79     wxSize newSize = size;
  80     if (newSize.x == -1) newSize.x = 100;
  81     if (newSize.y == -1) newSize.y = 26;
  82     SetSize( newSize.x, newSize.y );
  83
  84     GtkWidget *list = GTK_COMBO(m_widget)->list;
  85
  86     for (int i = 0; i < n; i++)
  87     {
  88         GtkWidget *list_item = gtk_list_item_new_with_label( choices[i] );
  89
  90         m_clientDataList.Append( (wxObject*)NULL );
  91         m_clientObjectList.Append( (wxObject*)NULL );
  92
  93         gtk_container_add( GTK_CONTAINER(list), list_item );
  94
  95         gtk_widget_realize( list_item );
  96         gtk_widget_realize( GTK_BIN(list_item)->child );
  97
  98         gtk_widget_show( list_item );
  99
 100         gtk_signal_connect( GTK_OBJECT(list_item), "select",
 101         GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 102     }
 103
 104     m_parent->AddChild( this );
 105
 106     (m_parent->m_insertCallback)( m_parent, this );
 107
 108     PostCreation();
 109
 110     ConnectWidget( GTK_COMBO(m_widget)->button );
 111
 112     if (!value.IsNull()) SetValue( value );
 113
 114     gtk_widget_realize( GTK_COMBO(m_widget)->list );
 115     gtk_widget_realize( GTK_COMBO(m_widget)->entry );
 116     gtk_widget_realize( GTK_COMBO(m_widget)->button );
 117
 118     SetBackgroundColour( parent->GetBackgroundColour() );
 119     SetForegroundColour( parent->GetForegroundColour() );
 120
 121     Show( TRUE );
 122
 123     return TRUE;
 124 }
 125
 126 wxComboBox::~wxComboBox()
 127 {
 128     wxNode *node = m_clientDataList.First();
 129     while (node)
 130     {
 131         wxClientData *cd = (wxClientData*)node->Data();
 132         if (cd) delete cd;
 133         node = node->Next();
 134     }
 135     m_clientDataList.Clear();
 136 }
 137
 138 void wxComboBox::AppendCommon( const wxString &item )
 139 {
 140     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 141
 142     GtkWidget *list = GTK_COMBO(m_widget)->list;
 143
 144     GtkWidget *list_item = gtk_list_item_new_with_label( item );
 145
 146     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 147       GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 148
 149     gtk_container_add( GTK_CONTAINER(list), list_item );
 150
 151     if (m_widgetStyle) ApplyWidgetStyle();
 152
 153     gtk_widget_show( list_item );
 154 }
 155
 156 void wxComboBox::Append( const wxString &item )
 157 {
 158     m_clientDataList.Append( (wxObject*) NULL );
 159     m_clientObjectList.Append( (wxObject*) NULL );
 160
 161     AppendCommon( item );
 162 }
 163
 164 void wxComboBox::Append( const wxString &item, void *clientData )
 165 {
 166     m_clientDataList.Append( (wxObject*) clientData );
 167     m_clientObjectList.Append( (wxObject*)NULL );
 168
 169     AppendCommon( item );
 170 }
 171
 172 void wxComboBox::Append( const wxString &item, wxClientData *clientData )
 173 {
 174     m_clientDataList.Append( (wxObject*) NULL );
 175     m_clientObjectList.Append( (wxObject*) clientData );
 176
 177     AppendCommon( item );
 178 }
 179
 180 void wxComboBox::SetClientData( int n, void* clientData )
 181 {
 182     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 183
 184     wxNode *node = m_clientDataList.Nth( n );
 185     if (!node) return;
 186
 187     node->SetData( (wxObject*) clientData );
 188 }
 189
 190 void* wxComboBox::GetClientData( int n )
 191 {
 192     wxCHECK_MSG( m_widget != NULL, NULL, "invalid combobox" );
 193
 194     wxNode *node = m_clientDataList.Nth( n );
 195     if (!node) return NULL;
 196
 197     return node->Data();
 198 }
 199
 200 void wxComboBox::SetClientObject( int n, wxClientData* clientData )
 201 {
 202     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 203
 204     wxNode *node = m_clientObjectList.Nth( n );
 205     if (!node) return;
 206
 207     wxClientData *cd = (wxClientData*) node->Data();
 208     if (cd) delete cd;
 209
 210     node->SetData( (wxObject*) clientData );
 211 }
 212
 213 wxClientData* wxComboBox::GetClientObject( int n )
 214 {
 215     wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, "invalid combobox" );
 216
 217     wxNode *node = m_clientDataList.Nth( n );
 218     if (!node) return (wxClientData*) NULL;
 219
 220     return (wxClientData*) node->Data();
 221 }
 222
 223 void wxComboBox::Clear()
 224 {
 225     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 226
 227     GtkWidget *list = GTK_COMBO(m_widget)->list;
 228     gtk_list_clear_items( GTK_LIST(list), 0, Number() );
 229
 230     wxNode *node = m_clientObjectList.First();
 231     while (node)
 232     {
 233         wxClientData *cd = (wxClientData*)node->Data();
 234         if (cd) delete cd;
 235         node = node->Next();
 236     }
 237     m_clientObjectList.Clear();
 238
 239     m_clientDataList.Clear();
 240 }
 241
 242 void wxComboBox::Delete( int n )
 243 {
 244     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 245
 246     GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
 247
 248     GList *child = g_list_nth( listbox->children, n );
 249
 250     if (!child)
 251     {
 252         wxFAIL_MSG("wrong index");
 253         return;
 254     }
 255
 256     GList *list = g_list_append( (GList*) NULL, child->data );
 257     gtk_list_remove_items( listbox, list );
 258     g_list_free( list );
 259
 260     wxNode *node = m_clientObjectList.Nth( n );
 261     if (node)
 262     {
 263         wxClientData *cd = (wxClientData*)node->Data();
 264         if (cd) delete cd;
 265         m_clientObjectList.DeleteNode( node );
 266     }
 267
 268     node = m_clientDataList.Nth( n );
 269     if (node)
 270     {
 271         m_clientDataList.DeleteNode( node );
 272     }
 273 }
 274
 275 int wxComboBox::FindString( const wxString &item )
 276 {
 277     wxCHECK_MSG( m_widget != NULL, -1, "invalid combobox" );
 278
 279     GtkWidget *list = GTK_COMBO(m_widget)->list;
 280
 281     GList *child = GTK_LIST(list)->children;
 282     int count = 0;
 283     while (child)
 284     {
 285         GtkBin *bin = GTK_BIN( child->data );
 286         GtkLabel *label = GTK_LABEL( bin->child );
 287         if (item == label->label) return count;
 288         count++;
 289         child = child->next;
 290     }
 291
 292     wxFAIL_MSG( "wxComboBox: string not found" );
 293
 294     return -1;
 295 }
 296
 297 int wxComboBox::GetSelection() const
 298 {
 299     wxCHECK_MSG( m_widget != NULL, -1, "invalid combobox" );
 300
 301     GtkWidget *list = GTK_COMBO(m_widget)->list;
 302
 303     GList *selection = GTK_LIST(list)->selection;
 304     if (selection)
 305     {
 306         GList *child = GTK_LIST(list)->children;
 307         int count = 0;
 308         while (child)
 309         {
 310             if (child->data == selection->data) return count;
 311             count++;
 312             child = child->next;
 313         }
 314     }
 315
 316     wxFAIL_MSG( "wxComboBox: no selection" );
 317
 318     return -1;
 319 }
 320
 321 wxString wxComboBox::GetString( int n ) const
 322 {
 323     wxCHECK_MSG( m_widget != NULL, "", "invalid combobox" );
 324
 325     GtkWidget *list = GTK_COMBO(m_widget)->list;
 326
 327     GList *child = g_list_nth( GTK_LIST(list)->children, n );
 328     if (child)
 329     {
 330         GtkBin *bin = GTK_BIN( child->data );
 331         GtkLabel *label = GTK_LABEL( bin->child );
 332         return label->label;
 333     }
 334
 335     wxFAIL_MSG( "wxComboBox: wrong index" );
 336
 337     return "";
 338 }
 339
 340 wxString wxComboBox::GetStringSelection() const
 341 {
 342     wxCHECK_MSG( m_widget != NULL, "", "invalid combobox" );
 343
 344     GtkWidget *list = GTK_COMBO(m_widget)->list;
 345
 346     GList *selection = GTK_LIST(list)->selection;
 347     if (selection)
 348     {
 349         GtkBin *bin = GTK_BIN( selection->data );
 350         wxString tmp = GTK_LABEL( bin->child )->label;
 351         return tmp;
 352     }
 353
 354     wxFAIL_MSG( "wxComboBox: no selection" );
 355
 356     return "";
 357 }
 358
 359 int wxComboBox::Number() const
 360 {
 361     wxCHECK_MSG( m_widget != NULL, 0, "invalid combobox" );
 362
 363     GtkWidget *list = GTK_COMBO(m_widget)->list;
 364
 365     GList *child = GTK_LIST(list)->children;
 366     int count = 0;
 367     while (child) { count++; child = child->next; }
 368     return count;
 369 }
 370
 371 void wxComboBox::SetSelection( int n )
 372 {
 373     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 374
 375     GtkWidget *list = GTK_COMBO(m_widget)->list;
 376     gtk_list_select_item( GTK_LIST(list), n );
 377 }
 378
 379 void wxComboBox::SetStringSelection( const wxString &string )
 380 {
 381     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 382
 383     int res = FindString( string );
 384     if (res == -1) return;
 385     SetSelection( res );
 386 }
 387
 388 wxString wxComboBox::GetValue() const
 389 {
 390     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 391     wxString tmp = gtk_entry_get_text( GTK_ENTRY(entry) );
 392     return tmp;
 393 }
 394
 395 void wxComboBox::SetValue( const wxString& value )
 396 {
 397     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 398
 399     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 400     wxString tmp = "";
 401     if (!value.IsNull()) tmp = value;
 402     gtk_entry_set_text( GTK_ENTRY(entry), tmp );
 403 }
 404
 405 void wxComboBox::Copy()
 406 {
 407     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 408
 409     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 410 #if (GTK_MINOR_VERSION == 1)
 411     gtk_editable_copy_clipboard( GTK_EDITABLE(entry) );
 412 #else
 413     gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
 414 #endif
 415 }
 416
 417 void wxComboBox::Cut()
 418 {
 419     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 420
 421     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 422 #if (GTK_MINOR_VERSION == 1)
 423     gtk_editable_cut_clipboard( GTK_EDITABLE(entry) );
 424 #else
 425     gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
 426 #endif
 427 }
 428
 429 void wxComboBox::Paste()
 430 {
 431     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 432
 433     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 434 #if (GTK_MINOR_VERSION == 1)
 435     gtk_editable_paste_clipboard( GTK_EDITABLE(entry) );
 436 #else
 437     gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
 438 #endif
 439 }
 440
 441 void wxComboBox::SetInsertionPoint( long pos )
 442 {
 443     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 444
 445     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 446     int tmp = (int) pos;
 447     gtk_entry_set_position( GTK_ENTRY(entry), tmp );
 448 }
 449
 450 void wxComboBox::SetInsertionPointEnd()
 451 {
 452     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 453
 454     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 455     int pos = GTK_ENTRY(entry)->text_length;
 456     SetInsertionPoint( pos-1 );
 457 }
 458
 459 long wxComboBox::GetInsertionPoint() const
 460 {
 461     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 462     return (long) GTK_EDITABLE(entry)->current_pos;
 463 }
 464
 465 long wxComboBox::GetLastPosition() const
 466 {
 467     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 468     int pos = GTK_ENTRY(entry)->text_length;
 469     return (long) pos-1;
 470 }
 471
 472 void wxComboBox::Replace( long from, long to, const wxString& value )
 473 {
 474     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 475
 476     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 477     gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 478     if (value.IsNull()) return;
 479     gint pos = (gint)to;
 480     gtk_editable_insert_text( GTK_EDITABLE(entry), value, value.Length(), &pos );
 481 }
 482
 483 void wxComboBox::Remove(long from, long to)
 484 {
 485     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 486
 487     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 488     gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 489 }
 490
 491 void wxComboBox::SetSelection( long WXUNUSED(from), long WXUNUSED(to) )
 492 {
 493     wxFAIL_MSG( "wxComboBox::SetSelection not implemented" );
 494 }
 495
 496 void wxComboBox::SetEditable( bool WXUNUSED(editable) )
 497 {
 498     wxFAIL_MSG( "wxComboBox::SetEditable not implemented" );
 499 }
 500
 501 void wxComboBox::OnSize( wxSizeEvent &event )
 502 {
 503     wxControl::OnSize( event );
 504
 505     int w = 21;
 506     gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
 507
 508     gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
 509     gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
 510 }
 511
 512 void wxComboBox::ApplyWidgetStyle()
 513 {
 514     SetWidgetStyle();
 515
 516     gtk_widget_set_style( GTK_COMBO(m_widget)->button, m_widgetStyle );
 517     gtk_widget_set_style( GTK_COMBO(m_widget)->entry, m_widgetStyle );
 518     gtk_widget_set_style( GTK_COMBO(m_widget)->list, m_widgetStyle );
 519
 520     GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
 521     GList *child = list->children;
 522     while (child)
 523     {
 524         gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
 525
 526         GtkBin *bin = GTK_BIN(child->data);
 527         gtk_widget_set_style( bin->child, m_widgetStyle );
 528
 529         child = child->next;
 530     }
 531 }
 532
 533 GtkWidget* wxComboBox::GetConnectWidget()
 534 {
 535     return GTK_COMBO(m_widget)->entry;
 536 }
 537
 538 bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
 539 {
 540     return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) ||
 541              (window == GTK_COMBO(m_widget)->button->window ) );
 542 }
 543