src/gtk/combobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        combobox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "combobox.h"
  13 #endif
  14
  15 #include "wx/combobox.h"
  16 #include <wx/intl.h>
  17
  18 //-----------------------------------------------------------------------------
  19 // data
  20 //-----------------------------------------------------------------------------
  21
  22 extern bool   g_blockEventsOnDrag;
  23
  24 //-----------------------------------------------------------------------------
  25 // "select"
  26 //-----------------------------------------------------------------------------
  27
  28 static void gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
  29 {
  30   if (!combo->HasVMT()) return;
  31   if (g_blockEventsOnDrag) return;
  32
  33   if (combo->m_alreadySent)
  34   {
  35     combo->m_alreadySent = FALSE;
  36     return;
  37   }
  38
  39   combo->m_alreadySent = TRUE;
  40
  41   wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, combo->GetId());
  42   event.SetInt( combo->GetSelection() );
  43   wxString tmp( combo->GetStringSelection() );
  44   event.SetString( WXSTRINGCAST(tmp) );
  45   event.SetEventObject(combo);
  46   combo->GetEventHandler()->ProcessEvent(event);
  47 }
  48
  49 //-----------------------------------------------------------------------------
  50 // wxComboBox
  51 //-----------------------------------------------------------------------------
  52
  53 IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
  54
  55 BEGIN_EVENT_TABLE(wxComboBox, wxControl)
  56   EVT_SIZE(wxComboBox::OnSize)
  57 END_EVENT_TABLE()
  58
  59 bool wxComboBox::Create(wxWindow *parent, wxWindowID id, const wxString& value,
  60   const wxPoint& pos, const wxSize& size,
  61   int n, const wxString choices[],
  62   long style, const wxValidator& validator, 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;
  83     list_item = gtk_list_item_new_with_label( choices[i] );
  84
  85     gtk_container_add( GTK_CONTAINER(list), list_item );
  86
  87     m_clientData.Append( (wxObject*)NULL );
  88
  89     gtk_widget_show( list_item );
  90
  91     gtk_signal_connect( GTK_OBJECT(list_item), "select",
  92       GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
  93   }
  94
  95   PostCreation();
  96
  97   ConnectWidget( GTK_COMBO(m_widget)->button );
  98
  99   if (!value.IsNull()) SetValue( value );
 100
 101   Show( TRUE );
 102
 103   return TRUE;
 104 }
 105
 106 void wxComboBox::Clear(void)
 107 {
 108   GtkWidget *list = GTK_COMBO(m_widget)->list;
 109   gtk_list_clear_items( GTK_LIST(list), 0, Number() );
 110
 111   m_clientData.Clear();
 112 }
 113
 114 void wxComboBox::Append( const wxString &item )
 115 {
 116   Append( item, (char*)NULL );
 117 }
 118
 119 void wxComboBox::Append( const wxString &item, char *clientData )
 120 {
 121   GtkWidget *list = GTK_COMBO(m_widget)->list;
 122
 123   GtkWidget *list_item = gtk_list_item_new_with_label( item );
 124
 125   if (m_hasOwnStyle)
 126   {
 127     GtkBin *bin = GTK_BIN( list_item );
 128     gtk_widget_set_style( bin->child,
 129       gtk_style_ref(
 130         gtk_widget_get_style( m_widget ) ) );
 131   }
 132
 133   gtk_signal_connect( GTK_OBJECT(list_item), "select",
 134     GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 135
 136   m_clientData.Append( (wxObject*)clientData );
 137
 138   gtk_container_add( GTK_CONTAINER(list), list_item );
 139
 140   gtk_widget_show( list_item );
 141 }
 142
 143 void wxComboBox::Delete( int n )
 144 {
 145   GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
 146
 147   GList *child = g_list_nth( listbox->children, n );
 148
 149   if (!child)
 150   {
 151     wxFAIL_MSG("wrong index");
 152     return;
 153   }
 154
 155   GList *list = g_list_append( NULL, child->data );
 156   gtk_list_remove_items( listbox, list );
 157   g_list_free( list );
 158
 159   wxNode *node = m_clientData.Nth( n );
 160   if (!node)
 161   {
 162     wxFAIL_MSG( "wrong index" );
 163   }
 164   else
 165     m_clientData.DeleteNode( node );
 166 }
 167
 168 int wxComboBox::FindString( const wxString &item )
 169 {
 170   GtkWidget *list = GTK_COMBO(m_widget)->list;
 171
 172   GList *child = GTK_LIST(list)->children;
 173   int count = 0;
 174   while (child)
 175   {
 176     GtkBin *bin = GTK_BIN( child->data );
 177     GtkLabel *label = GTK_LABEL( bin->child );
 178     if (item == label->label) return count;
 179     count++;
 180     child = child->next;
 181   }
 182
 183   wxFAIL_MSG( "wxComboBox: string not found" );
 184
 185   return -1;
 186 }
 187
 188 char* wxComboBox::GetClientData( int n )
 189 {
 190   wxNode *node = m_clientData.Nth( n );
 191   if (node) return (char*)node->Data();
 192
 193   wxFAIL_MSG( "wxComboBox: wrong index" );
 194
 195   return (char *) NULL;
 196 }
 197
 198 void wxComboBox::SetClientData( int n, char * clientData )
 199 {
 200   wxNode *node = m_clientData.Nth( n );
 201   if (node) node->SetData( (wxObject*) clientData );
 202
 203   wxFAIL_MSG( "wxComboBox: wrong index" );
 204 }
 205
 206 int wxComboBox::GetSelection(void) const
 207 {
 208   GtkWidget *list = GTK_COMBO(m_widget)->list;
 209
 210   GList *selection = GTK_LIST(list)->selection;
 211   if (selection)
 212   {
 213     GList *child = GTK_LIST(list)->children;
 214     int count = 0;
 215     while (child)
 216     {
 217       if (child->data == selection->data) return count;
 218       count++;
 219       child = child->next;
 220     }
 221   }
 222
 223   wxFAIL_MSG( "wxComboBox: no selection" );
 224
 225   return -1;
 226 }
 227
 228 wxString wxComboBox::GetString( int n ) const
 229 {
 230   GtkWidget *list = GTK_COMBO(m_widget)->list;
 231
 232   GList *child = g_list_nth( GTK_LIST(list)->children, n );
 233   if (child)
 234   {
 235     GtkBin *bin = GTK_BIN( child->data );
 236     GtkLabel *label = GTK_LABEL( bin->child );
 237     return label->label;
 238   }
 239
 240   wxFAIL_MSG( "wxComboBox: wrong index" );
 241
 242   return "";
 243 }
 244
 245 wxString wxComboBox::GetStringSelection(void) const
 246 {
 247   GtkWidget *list = GTK_COMBO(m_widget)->list;
 248
 249   GList *selection = GTK_LIST(list)->selection;
 250   if (selection)
 251   {
 252     GtkBin *bin = GTK_BIN( selection->data );
 253     wxString tmp = GTK_LABEL( bin->child )->label;
 254     return tmp;
 255   }
 256
 257   wxFAIL_MSG( "wxComboBox: no selection" );
 258
 259   return "";
 260 }
 261
 262 int wxComboBox::Number(void) const
 263 {
 264   GtkWidget *list = GTK_COMBO(m_widget)->list;
 265
 266   GList *child = GTK_LIST(list)->children;
 267   int count = 0;
 268   while (child) { count++; child = child->next; }
 269   return count;
 270 }
 271
 272 void wxComboBox::SetSelection( int n )
 273 {
 274   GtkWidget *list = GTK_COMBO(m_widget)->list;
 275   gtk_list_select_item( GTK_LIST(list), n );
 276 }
 277
 278 void wxComboBox::SetStringSelection( const wxString &string )
 279 {
 280   int res = FindString( string );
 281   if (res == -1) return;
 282   SetSelection( res );
 283 }
 284
 285 wxString wxComboBox::GetValue(void) const
 286 {
 287   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 288   wxString tmp = gtk_entry_get_text( GTK_ENTRY(entry) );
 289   return tmp;
 290 }
 291
 292 void wxComboBox::SetValue( const wxString& value )
 293 {
 294   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 295   wxString tmp = "";
 296   if (!value.IsNull()) tmp = value;
 297   gtk_entry_set_text( GTK_ENTRY(entry), tmp );
 298 }
 299
 300 void wxComboBox::Copy(void)
 301 {
 302   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 303   gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
 304 }
 305
 306 void wxComboBox::Cut(void)
 307 {
 308   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 309   gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
 310 }
 311
 312 void wxComboBox::Paste(void)
 313 {
 314   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 315   gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
 316 }
 317
 318 void wxComboBox::SetInsertionPoint( long pos )
 319 {
 320   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 321   int tmp = (int) pos;
 322   gtk_entry_set_position( GTK_ENTRY(entry), tmp );
 323 }
 324
 325 void wxComboBox::SetInsertionPointEnd(void)
 326 {
 327   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 328   int pos = GTK_ENTRY(entry)->text_length;
 329   SetInsertionPoint( pos-1 );
 330 }
 331
 332 long wxComboBox::GetInsertionPoint(void) const
 333 {
 334   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 335   return (long) GTK_EDITABLE(entry)->current_pos;
 336 }
 337
 338 long wxComboBox::GetLastPosition(void) const
 339 {
 340   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 341   int pos = GTK_ENTRY(entry)->text_length;
 342   return (long) pos-1;
 343 }
 344
 345 void wxComboBox::Replace( long from, long to, const wxString& value )
 346 {
 347   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 348   gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 349   if (value.IsNull()) return;
 350   gint pos = (gint)to;
 351   gtk_editable_insert_text( GTK_EDITABLE(entry), value, value.Length(), &pos );
 352 }
 353
 354 void wxComboBox::Remove(long from, long to)
 355 {
 356   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 357   gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 358 }
 359
 360 void wxComboBox::SetSelection( long WXUNUSED(from), long WXUNUSED(to) )
 361 {
 362   wxFAIL_MSG( "wxComboBox::SetSelection not implemented" );
 363 }
 364
 365 void wxComboBox::SetEditable( bool WXUNUSED(editable) )
 366 {
 367   wxFAIL_MSG( "wxComboBox::SetEditable not implemented" );
 368 }
 369
 370 void wxComboBox::OnSize( wxSizeEvent &event )
 371 {
 372   wxControl::OnSize( event );
 373
 374   int w = 22;
 375
 376   gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
 377
 378   gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
 379   gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
 380 }
 381
 382 void wxComboBox::SetFont( const wxFont &font )
 383 {
 384   wxWindow::SetFont( font );
 385
 386   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 387
 388   gtk_widget_set_style( entry,
 389     gtk_style_ref(
 390       gtk_widget_get_style( m_widget ) ) );
 391
 392   GtkWidget *list = GTK_COMBO(m_widget)->list;
 393
 394   GList *child = GTK_LIST(list)->children;
 395   while (child)
 396   {
 397     GtkBin *bin = (GtkBin*) child->data;
 398     gtk_widget_set_style( bin->child,
 399       gtk_style_ref(
 400         gtk_widget_get_style( m_widget ) ) );
 401
 402     child = child->next;
 403   }
 404 }
 405
 406 GtkWidget* wxComboBox::GetConnectWidget(void)
 407 {
 408   return GTK_COMBO(m_widget)->entry;
 409 }
 410
 411 bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
 412 {
 413   return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) ||
 414            (window == GTK_COMBO(m_widget)->button->window ) );
 415 }
 416