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