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 #ifdef wxUSE_COMBOBOX
  18
  19 #include <wx/intl.h>
  20
  21 #include "gdk/gdk.h"
  22 #include "gtk/gtk.h"
  23
  24 //-----------------------------------------------------------------------------
  25 // data
  26 //-----------------------------------------------------------------------------
  27
  28 extern bool   g_blockEventsOnDrag;
  29
  30 //-----------------------------------------------------------------------------
  31 // "select"
  32 //-----------------------------------------------------------------------------
  33
  34 static void gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
  35 {
  36     if (!combo->HasVMT()) return;
  37     if (g_blockEventsOnDrag) return;
  38
  39     if (combo->m_alreadySent)
  40     {
  41         combo->m_alreadySent = FALSE;
  42         return;
  43     }
  44
  45     combo->m_alreadySent = TRUE;
  46
  47     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, combo->GetId());
  48     event.SetInt( combo->GetSelection() );
  49     wxString tmp( combo->GetStringSelection() );
  50     event.SetString( WXSTRINGCAST(tmp) );
  51     event.SetEventObject(combo);
  52     combo->GetEventHandler()->ProcessEvent(event);
  53 }
  54
  55 //-----------------------------------------------------------------------------
  56 // wxComboBox
  57 //-----------------------------------------------------------------------------
  58
  59 IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
  60
  61 BEGIN_EVENT_TABLE(wxComboBox, wxControl)
  62     EVT_SIZE(wxComboBox::OnSize)
  63 END_EVENT_TABLE()
  64
  65 bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
  66                          const wxPoint& pos, const wxSize& size,
  67                          int n, const wxString choices[],
  68                          long style, const wxValidator& validator,
  69                          const wxString& name )
  70 {
  71     m_alreadySent = FALSE;
  72     m_needParent = TRUE;
  73     m_acceptsFocus = TRUE;
  74
  75     PreCreation( parent, id, pos, size, style, name );
  76
  77     SetValidator( validator );
  78
  79     m_widget = gtk_combo_new();
  80
  81     wxSize newSize = size;
  82     if (newSize.x == -1) newSize.x = 100;
  83     if (newSize.y == -1) newSize.y = 26;
  84     SetSize( newSize.x, newSize.y );
  85
  86     GtkWidget *list = GTK_COMBO(m_widget)->list;
  87
  88     for (int i = 0; i < n; i++)
  89     {
  90         GtkWidget *list_item = gtk_list_item_new_with_label( choices[i] );
  91
  92         m_clientDataList.Append( (wxObject*)NULL );
  93         m_clientObjectList.Append( (wxObject*)NULL );
  94
  95         gtk_container_add( GTK_CONTAINER(list), list_item );
  96
  97         gtk_widget_realize( list_item );
  98         gtk_widget_realize( GTK_BIN(list_item)->child );
  99
 100         gtk_widget_show( list_item );
 101
 102         gtk_signal_connect( GTK_OBJECT(list_item), "select",
 103         GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 104     }
 105
 106     m_parent->AddChild( this );
 107
 108     (m_parent->m_insertCallback)( m_parent, this );
 109
 110     PostCreation();
 111
 112     ConnectWidget( GTK_COMBO(m_widget)->button );
 113
 114     if (!value.IsNull()) SetValue( value );
 115
 116     gtk_widget_realize( GTK_COMBO(m_widget)->list );
 117     gtk_widget_realize( GTK_COMBO(m_widget)->entry );
 118     gtk_widget_realize( GTK_COMBO(m_widget)->button );
 119
 120     SetBackgroundColour( parent->GetBackgroundColour() );
 121     SetForegroundColour( parent->GetForegroundColour() );
 122
 123     Show( TRUE );
 124
 125     return TRUE;
 126 }
 127
 128 wxComboBox::~wxComboBox()
 129 {
 130     wxNode *node = m_clientDataList.First();
 131     while (node)
 132     {
 133         wxClientData *cd = (wxClientData*)node->Data();
 134         if (cd) delete cd;
 135         node = node->Next();
 136     }
 137     m_clientDataList.Clear();
 138 }
 139
 140 void wxComboBox::AppendCommon( const wxString &item )
 141 {
 142     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 143
 144     GtkWidget *list = GTK_COMBO(m_widget)->list;
 145
 146     GtkWidget *list_item = gtk_list_item_new_with_label( item );
 147
 148     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 149       GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 150
 151     gtk_container_add( GTK_CONTAINER(list), list_item );
 152
 153     if (m_widgetStyle) ApplyWidgetStyle();
 154
 155     gtk_widget_show( list_item );
 156 }
 157
 158 void wxComboBox::Append( const wxString &item )
 159 {
 160     m_clientDataList.Append( (wxObject*) NULL );
 161     m_clientObjectList.Append( (wxObject*) NULL );
 162
 163     AppendCommon( item );
 164 }
 165
 166 void wxComboBox::Append( const wxString &item, void *clientData )
 167 {
 168     m_clientDataList.Append( (wxObject*) clientData );
 169     m_clientObjectList.Append( (wxObject*)NULL );
 170
 171     AppendCommon( item );
 172 }
 173
 174 void wxComboBox::Append( const wxString &item, wxClientData *clientData )
 175 {
 176     m_clientDataList.Append( (wxObject*) NULL );
 177     m_clientObjectList.Append( (wxObject*) clientData );
 178
 179     AppendCommon( item );
 180 }
 181
 182 void wxComboBox::SetClientData( int n, void* clientData )
 183 {
 184     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 185
 186     wxNode *node = m_clientDataList.Nth( n );
 187     if (!node) return;
 188
 189     node->SetData( (wxObject*) clientData );
 190 }
 191
 192 void* wxComboBox::GetClientData( int n )
 193 {
 194     wxCHECK_MSG( m_widget != NULL, NULL, "invalid combobox" );
 195
 196     wxNode *node = m_clientDataList.Nth( n );
 197     if (!node) return NULL;
 198
 199     return node->Data();
 200 }
 201
 202 void wxComboBox::SetClientObject( int n, wxClientData* clientData )
 203 {
 204     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 205
 206     wxNode *node = m_clientObjectList.Nth( n );
 207     if (!node) return;
 208
 209     wxClientData *cd = (wxClientData*) node->Data();
 210     if (cd) delete cd;
 211
 212     node->SetData( (wxObject*) clientData );
 213 }
 214
 215 wxClientData* wxComboBox::GetClientObject( int n )
 216 {
 217     wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, "invalid combobox" );
 218
 219     wxNode *node = m_clientDataList.Nth( n );
 220     if (!node) return (wxClientData*) NULL;
 221
 222     return (wxClientData*) node->Data();
 223 }
 224
 225 void wxComboBox::Clear()
 226 {
 227     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 228
 229     GtkWidget *list = GTK_COMBO(m_widget)->list;
 230     gtk_list_clear_items( GTK_LIST(list), 0, Number() );
 231
 232     wxNode *node = m_clientObjectList.First();
 233     while (node)
 234     {
 235         wxClientData *cd = (wxClientData*)node->Data();
 236         if (cd) delete cd;
 237         node = node->Next();
 238     }
 239     m_clientObjectList.Clear();
 240
 241     m_clientDataList.Clear();
 242 }
 243
 244 void wxComboBox::Delete( int n )
 245 {
 246     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 247
 248     GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
 249
 250     GList *child = g_list_nth( listbox->children, n );
 251
 252     if (!child)
 253     {
 254         wxFAIL_MSG("wrong index");
 255         return;
 256     }
 257
 258     GList *list = g_list_append( NULL, child->data );
 259     gtk_list_remove_items( listbox, list );
 260     g_list_free( list );
 261
 262     wxNode *node = m_clientObjectList.Nth( n );
 263     if (node)
 264     {
 265         wxClientData *cd = (wxClientData*)node->Data();
 266         if (cd) delete cd;
 267         m_clientObjectList.DeleteNode( node );
 268     }
 269
 270     node = m_clientDataList.Nth( n );
 271     if (node)
 272     {
 273         m_clientDataList.DeleteNode( node );
 274     }
 275 }
 276
 277 int wxComboBox::FindString( const wxString &item )
 278 {
 279     wxCHECK_MSG( m_widget != NULL, -1, "invalid combobox" );
 280
 281     GtkWidget *list = GTK_COMBO(m_widget)->list;
 282
 283     GList *child = GTK_LIST(list)->children;
 284     int count = 0;
 285     while (child)
 286     {
 287         GtkBin *bin = GTK_BIN( child->data );
 288         GtkLabel *label = GTK_LABEL( bin->child );
 289         if (item == label->label) return count;
 290         count++;
 291         child = child->next;
 292     }
 293
 294     wxFAIL_MSG( "wxComboBox: string not found" );
 295
 296     return -1;
 297 }
 298
 299 int wxComboBox::GetSelection() const
 300 {
 301     wxCHECK_MSG( m_widget != NULL, -1, "invalid combobox" );
 302
 303     GtkWidget *list = GTK_COMBO(m_widget)->list;
 304
 305     GList *selection = GTK_LIST(list)->selection;
 306     if (selection)
 307     {
 308         GList *child = GTK_LIST(list)->children;
 309         int count = 0;
 310         while (child)
 311         {
 312             if (child->data == selection->data) return count;
 313             count++;
 314             child = child->next;
 315         }
 316     }
 317
 318     wxFAIL_MSG( "wxComboBox: no selection" );
 319
 320     return -1;
 321 }
 322
 323 wxString wxComboBox::GetString( int n ) const
 324 {
 325     wxCHECK_MSG( m_widget != NULL, "", "invalid combobox" );
 326
 327     GtkWidget *list = GTK_COMBO(m_widget)->list;
 328
 329     GList *child = g_list_nth( GTK_LIST(list)->children, n );
 330     if (child)
 331     {
 332         GtkBin *bin = GTK_BIN( child->data );
 333         GtkLabel *label = GTK_LABEL( bin->child );
 334         return label->label;
 335     }
 336
 337     wxFAIL_MSG( "wxComboBox: wrong index" );
 338
 339     return "";
 340 }
 341
 342 wxString wxComboBox::GetStringSelection() const
 343 {
 344     wxCHECK_MSG( m_widget != NULL, "", "invalid combobox" );
 345
 346     GtkWidget *list = GTK_COMBO(m_widget)->list;
 347
 348     GList *selection = GTK_LIST(list)->selection;
 349     if (selection)
 350     {
 351         GtkBin *bin = GTK_BIN( selection->data );
 352         wxString tmp = GTK_LABEL( bin->child )->label;
 353         return tmp;
 354     }
 355
 356     wxFAIL_MSG( "wxComboBox: no selection" );
 357
 358     return "";
 359 }
 360
 361 int wxComboBox::Number() const
 362 {
 363     wxCHECK_MSG( m_widget != NULL, 0, "invalid combobox" );
 364
 365     GtkWidget *list = GTK_COMBO(m_widget)->list;
 366
 367     GList *child = GTK_LIST(list)->children;
 368     int count = 0;
 369     while (child) { count++; child = child->next; }
 370     return count;
 371 }
 372
 373 void wxComboBox::SetSelection( int n )
 374 {
 375     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 376
 377     GtkWidget *list = GTK_COMBO(m_widget)->list;
 378     gtk_list_select_item( GTK_LIST(list), n );
 379 }
 380
 381 void wxComboBox::SetStringSelection( const wxString &string )
 382 {
 383     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 384
 385     int res = FindString( string );
 386     if (res == -1) return;
 387     SetSelection( res );
 388 }
 389
 390 wxString wxComboBox::GetValue() const
 391 {
 392     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 393     wxString tmp = gtk_entry_get_text( GTK_ENTRY(entry) );
 394     return tmp;
 395 }
 396
 397 void wxComboBox::SetValue( const wxString& value )
 398 {
 399     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 400
 401     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 402     wxString tmp = "";
 403     if (!value.IsNull()) tmp = value;
 404     gtk_entry_set_text( GTK_ENTRY(entry), tmp );
 405 }
 406
 407 void wxComboBox::Copy()
 408 {
 409     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 410
 411     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 412 #if (GTK_MINOR_VERSION == 1)
 413     gtk_editable_copy_clipboard( GTK_EDITABLE(entry) );
 414 #else
 415     gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
 416 #endif
 417 }
 418
 419 void wxComboBox::Cut()
 420 {
 421     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 422
 423     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 424 #if (GTK_MINOR_VERSION == 1)
 425     gtk_editable_cut_clipboard( GTK_EDITABLE(entry) );
 426 #else
 427     gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
 428 #endif
 429 }
 430
 431 void wxComboBox::Paste()
 432 {
 433     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 434
 435     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 436 #if (GTK_MINOR_VERSION == 1)
 437     gtk_editable_paste_clipboard( GTK_EDITABLE(entry) );
 438 #else
 439     gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
 440 #endif
 441 }
 442
 443 void wxComboBox::SetInsertionPoint( long pos )
 444 {
 445     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 446
 447     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 448     int tmp = (int) pos;
 449     gtk_entry_set_position( GTK_ENTRY(entry), tmp );
 450 }
 451
 452 void wxComboBox::SetInsertionPointEnd()
 453 {
 454     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 455
 456     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 457     int pos = GTK_ENTRY(entry)->text_length;
 458     SetInsertionPoint( pos-1 );
 459 }
 460
 461 long wxComboBox::GetInsertionPoint() const
 462 {
 463     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 464     return (long) GTK_EDITABLE(entry)->current_pos;
 465 }
 466
 467 long wxComboBox::GetLastPosition() const
 468 {
 469     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 470     int pos = GTK_ENTRY(entry)->text_length;
 471     return (long) pos-1;
 472 }
 473
 474 void wxComboBox::Replace( long from, long to, const wxString& value )
 475 {
 476     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 477
 478     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 479     gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 480     if (value.IsNull()) return;
 481     gint pos = (gint)to;
 482     gtk_editable_insert_text( GTK_EDITABLE(entry), value, value.Length(), &pos );
 483 }
 484
 485 void wxComboBox::Remove(long from, long to)
 486 {
 487     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 488
 489     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 490     gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 491 }
 492
 493 void wxComboBox::SetSelection( long WXUNUSED(from), long WXUNUSED(to) )
 494 {
 495     wxFAIL_MSG( "wxComboBox::SetSelection not implemented" );
 496 }
 497
 498 void wxComboBox::SetEditable( bool WXUNUSED(editable) )
 499 {
 500     wxFAIL_MSG( "wxComboBox::SetEditable not implemented" );
 501 }
 502
 503 void wxComboBox::OnSize( wxSizeEvent &event )
 504 {
 505     wxControl::OnSize( event );
 506
 507     int w = 21;
 508     gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
 509
 510     gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
 511     gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
 512 }
 513
 514 void wxComboBox::ApplyWidgetStyle()
 515 {
 516     SetWidgetStyle();
 517
 518     gtk_widget_set_style( GTK_COMBO(m_widget)->button, m_widgetStyle );
 519     gtk_widget_set_style( GTK_COMBO(m_widget)->entry, m_widgetStyle );
 520     gtk_widget_set_style( GTK_COMBO(m_widget)->list, m_widgetStyle );
 521
 522     GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
 523     GList *child = list->children;
 524     while (child)
 525     {
 526         gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
 527
 528         GtkBin *bin = GTK_BIN(child->data);
 529         gtk_widget_set_style( bin->child, m_widgetStyle );
 530
 531         child = child->next;
 532     }
 533 }
 534
 535 GtkWidget* wxComboBox::GetConnectWidget()
 536 {
 537     return GTK_COMBO(m_widget)->entry;
 538 }
 539
 540 bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
 541 {
 542     return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) ||
 543              (window == GTK_COMBO(m_widget)->button->window ) );
 544 }
 545
 546 #endif
 547
 548   // wxUSE_COMBOBOX