src/gtk1/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 // wxComboBox
  26 //-----------------------------------------------------------------------------
  27
  28 //-----------------------------------------------------------------------------
  29 // clicked
  30
  31 static void gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
  32 {
  33   if (!combo->HasVMT()) return;
  34   if (g_blockEventsOnDrag) return;
  35
  36   if (combo->m_alreadySent)
  37   {
  38     combo->m_alreadySent = FALSE;
  39     return;
  40   }
  41
  42   combo->m_alreadySent = TRUE;
  43
  44   wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, combo->GetId());
  45   event.SetInt( combo->GetSelection() );
  46   wxString tmp( combo->GetStringSelection() );
  47   event.SetString( WXSTRINGCAST(tmp) );
  48   event.SetEventObject(combo);
  49   combo->GetEventHandler()->ProcessEvent(event);
  50 }
  51
  52 //-----------------------------------------------------------------------------
  53 // size
  54
  55 /*
  56 static gint gtk_combo_size_callback( GtkCombo *widget, GtkAllocation* alloc, wxComboBox *win )
  57 {
  58   if (!win->HasVMT()) return FALSE;
  59   if (g_blockEventsOnDrag) return FALSE;
  60   if (!widget->button) return FALSE;
  61
  62   widget->button->allocation.x =
  63     alloc->width - widget->button->allocation.width;
  64
  65   return FALSE;
  66 }
  67 */
  68
  69 //-----------------------------------------------------------------------------
  70
  71 IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
  72
  73 bool wxComboBox::Create(wxWindow *parent, wxWindowID id, const wxString& value,
  74   const wxPoint& pos, const wxSize& size,
  75   int n, const wxString choices[],
  76   long style, const wxValidator& validator, const wxString& name )
  77 {
  78   m_alreadySent = FALSE;
  79   m_needParent = TRUE;
  80
  81   PreCreation( parent, id, pos, size, style, name );
  82
  83   SetValidator( validator );
  84
  85   m_widget = gtk_combo_new();
  86
  87   wxSize newSize = size;
  88   if (newSize.x == -1) newSize.x = 100;
  89   if (newSize.y == -1) newSize.y = 26;
  90   SetSize( newSize.x, newSize.y );
  91
  92   GtkWidget *list = GTK_COMBO(m_widget)->list;
  93
  94   for (int i = 0; i < n; i++)
  95   {
  96     GtkWidget *list_item;
  97     list_item = gtk_list_item_new_with_label( choices[i] );
  98
  99     gtk_container_add( GTK_CONTAINER(list), list_item );
 100
 101     m_clientData.Append( (wxObject*)NULL );
 102
 103     gtk_widget_show( list_item );
 104
 105     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 106       GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 107   }
 108
 109   PostCreation();
 110
 111 /*
 112   gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 113     GTK_SIGNAL_FUNC(gtk_combo_size_callback), (gpointer)this );
 114 */
 115
 116   if (!value.IsNull()) SetValue( value );
 117
 118   Show( TRUE );
 119
 120   return TRUE;
 121 }
 122
 123 void wxComboBox::Clear(void)
 124 {
 125   GtkWidget *list = GTK_COMBO(m_widget)->list;
 126   gtk_list_clear_items( GTK_LIST(list), 0, Number() );
 127
 128   m_clientData.Clear();
 129 }
 130
 131 void wxComboBox::Append( const wxString &item )
 132 {
 133   Append( item, (char*)NULL );
 134 }
 135
 136 void wxComboBox::Append( const wxString &item, char *clientData )
 137 {
 138   GtkWidget *list = GTK_COMBO(m_widget)->list;
 139
 140   GtkWidget *list_item;
 141   list_item = gtk_list_item_new_with_label( item );
 142
 143   gtk_signal_connect( GTK_OBJECT(list_item), "select",
 144     GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 145
 146   m_clientData.Append( (wxObject*)clientData );
 147
 148   gtk_container_add( GTK_CONTAINER(list), list_item );
 149
 150   gtk_widget_show( list_item );
 151 }
 152
 153 void wxComboBox::Delete( int n )
 154 {
 155   GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
 156
 157   GList *child = g_list_nth( listbox->children, n );
 158
 159   if (!child)
 160   {
 161     wxFAIL_MSG("wrong index");
 162     return;
 163   }
 164
 165   GList *list = g_list_append( NULL, child->data );
 166   gtk_list_remove_items( listbox, list );
 167   g_list_free( list );
 168
 169   wxNode *node = m_clientData.Nth( n );
 170   if (!node)
 171   {
 172     wxFAIL_MSG( "wrong index" );
 173   }
 174   else
 175     m_clientData.DeleteNode( node );
 176 }
 177
 178 int wxComboBox::FindString( const wxString &item )
 179 {
 180   GtkWidget *list = GTK_COMBO(m_widget)->list;
 181
 182   GList *child = GTK_LIST(list)->children;
 183   int count = 0;
 184   while (child)
 185   {
 186     GtkBin *bin = GTK_BIN( child->data );
 187     GtkLabel *label = GTK_LABEL( bin->child );
 188     if (item == label->label) return count;
 189     count++;
 190     child = child->next;
 191   }
 192
 193   wxFAIL_MSG( "wxComboBox: string not found" );
 194
 195   return -1;
 196 }
 197
 198 char* wxComboBox::GetClientData( int n )
 199 {
 200   wxNode *node = m_clientData.Nth( n );
 201   if (node) return (char*)node->Data();
 202
 203   wxFAIL_MSG( "wxComboBox: wrong index" );
 204
 205   return (char *) NULL;
 206 }
 207
 208 void wxComboBox::SetClientData( int n, char * clientData )
 209 {
 210   wxNode *node = m_clientData.Nth( n );
 211   if (node) node->SetData( (wxObject*) clientData );
 212
 213   wxFAIL_MSG( "wxComboBox: wrong index" );
 214 }
 215
 216 int wxComboBox::GetSelection(void) const
 217 {
 218   GtkWidget *list = GTK_COMBO(m_widget)->list;
 219
 220   GList *selection = GTK_LIST(list)->selection;
 221   if (selection)
 222   {
 223     GList *child = GTK_LIST(list)->children;
 224     int count = 0;
 225     while (child)
 226     {
 227       if (child->data == selection->data) return count;
 228       count++;
 229       child = child->next;
 230     }
 231   }
 232
 233   wxFAIL_MSG( "wxComboBox: no selection" );
 234
 235   return -1;
 236 }
 237
 238 wxString wxComboBox::GetString( int n ) const
 239 {
 240   GtkWidget *list = GTK_COMBO(m_widget)->list;
 241
 242   GList *child = g_list_nth( GTK_LIST(list)->children, n );
 243   if (child)
 244   {
 245     GtkBin *bin = GTK_BIN( child->data );
 246     GtkLabel *label = GTK_LABEL( bin->child );
 247     return label->label;
 248   }
 249
 250   wxFAIL_MSG( "wxComboBox: wrong index" );
 251
 252   return "";
 253 }
 254
 255 wxString wxComboBox::GetStringSelection(void) const
 256 {
 257   GtkWidget *list = GTK_COMBO(m_widget)->list;
 258
 259   GList *selection = GTK_LIST(list)->selection;
 260   if (selection)
 261   {
 262     GtkBin *bin = GTK_BIN( selection->data );
 263     wxString tmp = GTK_LABEL( bin->child )->label;
 264     return tmp;
 265   }
 266
 267   wxFAIL_MSG( "wxComboBox: no selection" );
 268
 269   return "";
 270 }
 271
 272 int wxComboBox::Number(void) const
 273 {
 274   GtkWidget *list = GTK_COMBO(m_widget)->list;
 275
 276   GList *child = GTK_LIST(list)->children;
 277   int count = 0;
 278   while (child) { count++; child = child->next; }
 279   return count;
 280 }
 281
 282 void wxComboBox::SetSelection( int n )
 283 {
 284   GtkWidget *list = GTK_COMBO(m_widget)->list;
 285   gtk_list_select_item( GTK_LIST(list), n );
 286 }
 287
 288 void wxComboBox::SetStringSelection( const wxString &string )
 289 {
 290   int res = FindString( string );
 291   if (res == -1) return;
 292   SetSelection( res );
 293 }
 294
 295 wxString wxComboBox::GetValue(void) const
 296 {
 297   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 298   wxString tmp = gtk_entry_get_text( GTK_ENTRY(entry) );
 299   return tmp;
 300 }
 301
 302 void wxComboBox::SetValue( const wxString& value )
 303 {
 304   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 305   wxString tmp = "";
 306   if (!value.IsNull()) tmp = value;
 307   gtk_entry_set_text( GTK_ENTRY(entry), tmp );
 308 }
 309
 310 void wxComboBox::Copy(void)
 311 {
 312   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 313   gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
 314 }
 315
 316 void wxComboBox::Cut(void)
 317 {
 318   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 319   gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
 320 }
 321
 322 void wxComboBox::Paste(void)
 323 {
 324   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 325   gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
 326 }
 327
 328 void wxComboBox::SetInsertionPoint( long pos )
 329 {
 330   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 331   int tmp = (int) pos;
 332   gtk_entry_set_position( GTK_ENTRY(entry), tmp );
 333 }
 334
 335 void wxComboBox::SetInsertionPointEnd(void)
 336 {
 337   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 338   int pos = GTK_ENTRY(entry)->text_length;
 339   SetInsertionPoint( pos-1 );
 340 }
 341
 342 long wxComboBox::GetInsertionPoint(void) const
 343 {
 344   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 345   return (long) GTK_EDITABLE(entry)->current_pos;
 346 }
 347
 348 long wxComboBox::GetLastPosition(void) const
 349 {
 350   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 351   int pos = GTK_ENTRY(entry)->text_length;
 352   return (long) pos-1;
 353 }
 354
 355 void wxComboBox::Replace( long from, long to, const wxString& value )
 356 {
 357   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 358   gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 359   if (value.IsNull()) return;
 360   gint pos = (gint)to;
 361   gtk_editable_insert_text( GTK_EDITABLE(entry), value, value.Length(), &pos );
 362 }
 363
 364 void wxComboBox::Remove(long from, long to)
 365 {
 366   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 367   gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 368 }
 369
 370 void wxComboBox::SetSelection( long WXUNUSED(from), long WXUNUSED(to) )
 371 {
 372 }
 373
 374 void wxComboBox::SetEditable( bool WXUNUSED(editable) )
 375 {
 376 }
 377
 378