1 /////////////////////////////////////////////////////////////////////////////
4 // Author: Robert Roebling
6 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
11 #pragma implementation "combobox.h"
14 #include "wx/combobox.h"
18 #include "wx/settings.h"
21 #include "wx/textctrl.h" // for wxEVT_COMMAND_TEXT_UPDATED
26 //-----------------------------------------------------------------------------
28 //-----------------------------------------------------------------------------
30 extern void wxapp_install_idle_handler();
33 //-----------------------------------------------------------------------------
35 //-----------------------------------------------------------------------------
37 extern bool g_blockEventsOnDrag;
39 //-----------------------------------------------------------------------------
41 //-----------------------------------------------------------------------------
44 gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
46 if (g_isIdle) wxapp_install_idle_handler();
48 if (!combo->m_hasVMT) return;
50 if (g_blockEventsOnDrag) return;
52 if (combo->m_alreadySent)
54 combo->m_alreadySent = FALSE;
58 combo->m_alreadySent = TRUE;
60 int curSelection = combo->GetSelection();
62 if (combo->m_prevSelection != curSelection)
64 GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
65 gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
68 combo->m_prevSelection = curSelection;
70 wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
71 event.SetInt( curSelection );
72 event.SetString( combo->GetStringSelection() );
73 event.SetEventObject( combo );
75 combo->GetEventHandler()->ProcessEvent( event );
78 //-----------------------------------------------------------------------------
80 //-----------------------------------------------------------------------------
83 gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
85 if (g_isIdle) wxapp_install_idle_handler();
87 if (!combo->m_hasVMT) return;
89 wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
90 event.SetString( combo->GetValue() );
91 event.SetEventObject( combo );
92 combo->GetEventHandler()->ProcessEvent( event );
95 //-----------------------------------------------------------------------------
97 //-----------------------------------------------------------------------------
99 IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
101 BEGIN_EVENT_TABLE(wxComboBox, wxControl)
102 EVT_SIZE(wxComboBox::OnSize)
103 EVT_CHAR(wxComboBox::OnChar)
106 bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
107 const wxPoint& pos, const wxSize& size,
108 int n, const wxString choices[],
109 long style, const wxValidator& validator,
110 const wxString& name )
112 m_alreadySent = FALSE;
114 m_acceptsFocus = TRUE;
117 if (!PreCreation( parent, pos, size ) ||
118 !CreateBase( parent, id, pos, size, style, validator, name ))
120 wxFAIL_MSG( wxT("wxComboBox creation failed") );
124 m_widget = gtk_combo_new();
126 // make it more useable
127 gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE );
129 // and case-sensitive
130 gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );
133 GtkWidget *list = GTK_COMBO(m_widget)->list;
135 gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE );
137 for (int i = 0; i < n; i++)
139 /* don't send first event, which GTK sends aways when
140 inserting the first item */
141 m_alreadySent = TRUE;
143 GtkWidget *list_item = gtk_list_item_new_with_label( choices[i].mbc_str() );
145 m_clientDataList.Append( (wxObject*)NULL );
146 m_clientObjectList.Append( (wxObject*)NULL );
148 gtk_container_add( GTK_CONTAINER(list), list_item );
150 gtk_signal_connect( GTK_OBJECT(list_item), "select",
151 GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
153 gtk_widget_show( list_item );
156 m_parent->DoAddChild( this );
158 m_focusWidget = GTK_COMBO(m_widget)->entry;
162 ConnectWidget( GTK_COMBO(m_widget)->button );
164 if (!value.IsNull()) SetValue( value );
166 if (style & wxCB_READONLY)
167 gtk_entry_set_editable( GTK_ENTRY( GTK_COMBO(m_widget)->entry ), FALSE );
169 gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
170 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
172 wxSize size_best( DoGetBestSize() );
173 wxSize new_size( size );
174 if (new_size.x == -1)
175 new_size.x = size_best.x;
176 if (new_size.y == -1)
177 new_size.y = size_best.y;
178 if (new_size.y > size_best.y)
179 new_size.y = size_best.y;
180 if ((new_size.x != size.x) || (new_size.y != size.y))
182 SetSize( new_size.x, new_size.y );
184 // This is required for tool bar support
185 gtk_widget_set_usize( m_widget, new_size.x, new_size.y );
189 SetBackgroundColour( wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOW ) );
190 SetForegroundColour( parent->GetForegroundColour() );
197 wxComboBox::~wxComboBox()
199 wxNode *node = m_clientObjectList.First();
202 wxClientData *cd = (wxClientData*)node->Data();
206 m_clientObjectList.Clear();
208 m_clientDataList.Clear();
211 void wxComboBox::AppendCommon( const wxString &item )
213 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
215 GtkWidget *list = GTK_COMBO(m_widget)->list;
217 GtkWidget *list_item = gtk_list_item_new_with_label( item.mbc_str() );
219 gtk_container_add( GTK_CONTAINER(list), list_item );
221 gtk_signal_connect( GTK_OBJECT(list_item), "select",
222 GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
224 if (GTK_WIDGET_REALIZED(m_widget))
226 gtk_widget_realize( list_item );
227 gtk_widget_realize( GTK_BIN(list_item)->child );
229 if (m_widgetStyle) ApplyWidgetStyle();
232 gtk_widget_show( list_item );
235 void wxComboBox::Append( const wxString &item )
237 m_clientDataList.Append( (wxObject*) NULL );
238 m_clientObjectList.Append( (wxObject*) NULL );
240 AppendCommon( item );
243 void wxComboBox::Append( const wxString &item, void *clientData )
245 m_clientDataList.Append( (wxObject*) clientData );
246 m_clientObjectList.Append( (wxObject*)NULL );
248 AppendCommon( item );
251 void wxComboBox::Append( const wxString &item, wxClientData *clientData )
253 m_clientDataList.Append( (wxObject*) NULL );
254 m_clientObjectList.Append( (wxObject*) clientData );
256 AppendCommon( item );
259 void wxComboBox::SetClientData( int n, void* clientData )
261 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
263 wxNode *node = m_clientDataList.Nth( n );
266 node->SetData( (wxObject*) clientData );
269 void* wxComboBox::GetClientData( int n )
271 wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") );
273 wxNode *node = m_clientDataList.Nth( n );
274 if (!node) return NULL;
279 void wxComboBox::SetClientObject( int n, wxClientData* clientData )
281 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
283 wxNode *node = m_clientObjectList.Nth( n );
286 wxClientData *cd = (wxClientData*) node->Data();
289 node->SetData( (wxObject*) clientData );
292 wxClientData* wxComboBox::GetClientObject( int n )
294 wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") );
296 wxNode *node = m_clientObjectList.Nth( n );
297 if (!node) return (wxClientData*) NULL;
299 return (wxClientData*) node->Data();
302 void wxComboBox::Clear()
304 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
306 GtkWidget *list = GTK_COMBO(m_widget)->list;
307 gtk_list_clear_items( GTK_LIST(list), 0, Number() );
309 wxNode *node = m_clientObjectList.First();
312 wxClientData *cd = (wxClientData*)node->Data();
316 m_clientObjectList.Clear();
318 m_clientDataList.Clear();
321 void wxComboBox::Delete( int n )
323 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
325 GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
327 GList *child = g_list_nth( listbox->children, n );
331 wxFAIL_MSG(wxT("wrong index"));
335 GList *list = g_list_append( (GList*) NULL, child->data );
336 gtk_list_remove_items( listbox, list );
339 wxNode *node = m_clientObjectList.Nth( n );
342 wxClientData *cd = (wxClientData*)node->Data();
344 m_clientObjectList.DeleteNode( node );
347 node = m_clientDataList.Nth( n );
350 m_clientDataList.DeleteNode( node );
354 int wxComboBox::FindString( const wxString &item )
356 wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
358 GtkWidget *list = GTK_COMBO(m_widget)->list;
360 GList *child = GTK_LIST(list)->children;
364 GtkBin *bin = GTK_BIN( child->data );
365 GtkLabel *label = GTK_LABEL( bin->child );
366 if (item == wxString(label->label,*wxConvCurrent))
375 int wxComboBox::GetSelection() const
377 wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
379 GtkWidget *list = GTK_COMBO(m_widget)->list;
381 GList *selection = GTK_LIST(list)->selection;
384 GList *child = GTK_LIST(list)->children;
388 if (child->data == selection->data) return count;
397 wxString wxComboBox::GetString( int n ) const
399 wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
401 GtkWidget *list = GTK_COMBO(m_widget)->list;
404 GList *child = g_list_nth( GTK_LIST(list)->children, n );
407 GtkBin *bin = GTK_BIN( child->data );
408 GtkLabel *label = GTK_LABEL( bin->child );
409 str = wxString(label->label,*wxConvCurrent);
413 wxFAIL_MSG( wxT("wxComboBox: wrong index") );
419 wxString wxComboBox::GetStringSelection() const
421 wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
423 GtkWidget *list = GTK_COMBO(m_widget)->list;
425 GList *selection = GTK_LIST(list)->selection;
428 GtkBin *bin = GTK_BIN( selection->data );
429 wxString tmp = wxString(GTK_LABEL( bin->child )->label,*wxConvCurrent);
433 wxFAIL_MSG( wxT("wxComboBox: no selection") );
438 int wxComboBox::Number() const
440 wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") );
442 GtkWidget *list = GTK_COMBO(m_widget)->list;
444 GList *child = GTK_LIST(list)->children;
446 while (child) { count++; child = child->next; }
450 void wxComboBox::SetSelection( int n )
452 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
456 GtkWidget *list = GTK_COMBO(m_widget)->list;
457 gtk_list_unselect_item( GTK_LIST(list), m_prevSelection );
458 gtk_list_select_item( GTK_LIST(list), n );
464 void wxComboBox::SetStringSelection( const wxString &string )
466 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
468 int res = FindString( string );
469 if (res == -1) return;
473 wxString wxComboBox::GetValue() const
475 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
476 wxString tmp = wxString(gtk_entry_get_text( GTK_ENTRY(entry) ),*wxConvCurrent);
480 void wxComboBox::SetValue( const wxString& value )
482 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
484 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
485 wxString tmp = wxT("");
486 if (!value.IsNull()) tmp = value;
487 gtk_entry_set_text( GTK_ENTRY(entry), tmp.mbc_str() );
490 void wxComboBox::Copy()
492 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
494 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
495 #if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
496 gtk_editable_copy_clipboard( GTK_EDITABLE(entry) );
498 gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
502 void wxComboBox::Cut()
504 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
506 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
507 #if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
508 gtk_editable_cut_clipboard( GTK_EDITABLE(entry) );
510 gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
514 void wxComboBox::Paste()
516 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
518 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
519 #if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
520 gtk_editable_paste_clipboard( GTK_EDITABLE(entry) );
522 gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
526 void wxComboBox::SetInsertionPoint( long pos )
528 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
530 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
531 gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );
534 void wxComboBox::SetInsertionPointEnd()
536 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
538 SetInsertionPoint( -1 );
541 long wxComboBox::GetInsertionPoint() const
543 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
544 return (long) GTK_EDITABLE(entry)->current_pos;
547 long wxComboBox::GetLastPosition() const
549 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
550 int pos = GTK_ENTRY(entry)->text_length;
554 void wxComboBox::Replace( long from, long to, const wxString& value )
556 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
557 // FIXME: not quite sure how to do this method right in multibyte mode
559 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
560 gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
561 if (value.IsNull()) return;
563 gtk_editable_insert_text( GTK_EDITABLE(entry), value.mbc_str(), value.Length(), &pos );
566 void wxComboBox::Remove(long from, long to)
568 wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
570 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
571 gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
574 void wxComboBox::SetSelection( long from, long to )
576 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
577 gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to );
580 void wxComboBox::SetEditable( bool editable )
582 GtkWidget *entry = GTK_COMBO(m_widget)->entry;
583 gtk_entry_set_editable( GTK_ENTRY(entry), editable );
586 void wxComboBox::OnChar( wxKeyEvent &event )
588 if ( event.KeyCode() == WXK_RETURN )
590 wxString value = GetValue();
594 // make Enter generate "selected" event if there is only one item
595 // in the combobox - without it, it's impossible to select it at
597 wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
599 event.SetString( value );
600 event.SetEventObject( this );
601 GetEventHandler()->ProcessEvent( event );
605 // add the item to the list if it's not there yet
606 if ( FindString(value) == wxNOT_FOUND )
609 SetStringSelection(value);
611 // and generate the selected event for it
612 wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
613 event.SetInt( Number() - 1 );
614 event.SetString( value );
615 event.SetEventObject( this );
616 GetEventHandler()->ProcessEvent( event );
618 //else: do nothing, this will open the listbox
625 void wxComboBox::DisableEvents()
627 GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
628 GList *child = list->children;
631 gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
632 GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
638 void wxComboBox::EnableEvents()
640 GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
641 GList *child = list->children;
644 gtk_signal_connect( GTK_OBJECT(child->data), "select",
645 GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
651 void wxComboBox::OnSize( wxSizeEvent &event )
657 gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
659 gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
660 gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
664 void wxComboBox::ApplyWidgetStyle()
668 // gtk_widget_set_style( GTK_COMBO(m_widget)->button, m_widgetStyle );
669 gtk_widget_set_style( GTK_COMBO(m_widget)->entry, m_widgetStyle );
670 gtk_widget_set_style( GTK_COMBO(m_widget)->list, m_widgetStyle );
672 GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
673 GList *child = list->children;
676 gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
678 GtkBin *bin = GTK_BIN(child->data);
679 gtk_widget_set_style( bin->child, m_widgetStyle );
685 GtkWidget* wxComboBox::GetConnectWidget()
687 return GTK_COMBO(m_widget)->entry;
690 bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
692 return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) ||
693 (window == GTK_COMBO(m_widget)->button->window ) );
696 wxSize wxComboBox::DoGetBestSize() const
698 wxSize ret( wxControl::DoGetBestSize() );
700 // we know better our horizontal extent: it depends on the longest string
705 GdkFont *font = m_font.GetInternalFont();
708 size_t count = Number();
709 for ( size_t n = 0; n < count; n++ )
711 width = (wxCoord)gdk_string_width(font, GetString(n).mbc_str());
717 // empty combobox should have some reasonable default size too