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
  17 //-----------------------------------------------------------------------------
  18 // data
  19 //-----------------------------------------------------------------------------
  20
  21 extern bool   g_blockEventsOnDrag;
  22
  23 //-----------------------------------------------------------------------------
  24 // wxComboBox
  25 //-----------------------------------------------------------------------------
  26
  27 //-----------------------------------------------------------------------------
  28 // clicked
  29
  30 static void gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
  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 // size
  50
  51 /*
  52 static gint gtk_combo_size_callback( GtkCombo *widget, GtkAllocation* alloc, wxComboBox *win )
  53 {
  54   if (!win->HasVMT()) return FALSE;
  55   if (g_blockEventsOnDrag) return FALSE;
  56   if (!widget->button) return FALSE;
  57
  58   widget->button->allocation.x =
  59     alloc->width - widget->button->allocation.width;
  60
  61   return FALSE;
  62 };
  63 */
  64
  65 //-----------------------------------------------------------------------------
  66
  67 IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
  68
  69 bool wxComboBox::Create(wxWindow *parent, wxWindowID id, const wxString& value,
  70   const wxPoint& pos, const wxSize& size,
  71   int n, const wxString choices[],
  72   long style, const wxString& name )
  73 {
  74   m_alreadySent = FALSE;
  75   m_needParent = TRUE;
  76
  77   PreCreation( parent, id, pos, size, style, name );
  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;
  91     list_item = gtk_list_item_new_with_label( choices[i] );
  92
  93     gtk_signal_connect( GTK_OBJECT(list_item), "select",
  94       GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
  95
  96     gtk_container_add( GTK_CONTAINER(list), list_item );
  97
  98     m_clientData.Append( (wxObject*)NULL );
  99
 100     gtk_widget_show( list_item );
 101   };
 102
 103   PostCreation();
 104
 105 /*
 106   gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 107     GTK_SIGNAL_FUNC(gtk_combo_size_callback), (gpointer)this );
 108 */
 109
 110   if (!value.IsNull()) SetValue( value );
 111
 112   Show( TRUE );
 113
 114   return TRUE;
 115 };
 116
 117 void wxComboBox::Clear(void)
 118 {
 119   GtkWidget *list = GTK_COMBO(m_widget)->list;
 120   gtk_list_clear_items( GTK_LIST(list), 0, Number() );
 121
 122   m_clientData.Clear();
 123 };
 124
 125 void wxComboBox::Append( const wxString &item )
 126 {
 127   Append( item, (char*)NULL );
 128 };
 129
 130 void wxComboBox::Append( const wxString &item, char *clientData )
 131 {
 132   GtkWidget *list = GTK_COMBO(m_widget)->list;
 133
 134   GtkWidget *list_item;
 135   list_item = gtk_list_item_new_with_label( item );
 136
 137   gtk_signal_connect( GTK_OBJECT(list_item), "select",
 138     GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 139
 140   gtk_container_add( GTK_CONTAINER(list), list_item );
 141
 142   gtk_widget_show( list_item );
 143
 144   m_clientData.Append( (wxObject*)clientData );
 145 };
 146
 147 void wxComboBox::Delete( int n )
 148 {
 149   GtkWidget *list = GTK_COMBO(m_widget)->list;
 150   gtk_list_clear_items( GTK_LIST(list), n, n );
 151
 152   wxNode *node = m_clientData.Nth( n );
 153   if (!node)
 154   {
 155     wxFAIL_MSG("wxComboBox::Delete wrong index");
 156   }
 157   else
 158     m_clientData.DeleteNode( node );
 159 };
 160
 161 int wxComboBox::FindString( const wxString &item )
 162 {
 163   GtkWidget *list = GTK_COMBO(m_widget)->list;
 164
 165   GList *child = GTK_LIST(list)->children;
 166   int count = 0;
 167   while (child)
 168   {
 169     GtkBin *bin = GTK_BIN( child->data );
 170     GtkLabel *label = GTK_LABEL( bin->child );
 171     if (item == label->label) return count;
 172     count++;
 173     child = child->next;
 174   };
 175   return -1;
 176 };
 177
 178 char* wxComboBox::GetClientData( int n )
 179 {
 180   wxNode *node = m_clientData.Nth( n );
 181   if (node) return (char*)node->Data();
 182   return NULL;
 183 };
 184
 185 void wxComboBox::SetClientData( int n, char * clientData )
 186 {
 187   wxNode *node = m_clientData.Nth( n );
 188   if (node) node->SetData( (wxObject*) clientData );
 189 };
 190
 191 int wxComboBox::GetSelection(void) const
 192 {
 193   GtkWidget *list = GTK_COMBO(m_widget)->list;
 194
 195   GList *selection = GTK_LIST(list)->selection;
 196   if (selection)
 197   {
 198     GList *child = GTK_LIST(list)->children;
 199     int count = 0;
 200     while (child)
 201     {
 202       if (child->data == selection->data) return count;
 203       count++;
 204       child = child->next;
 205     };
 206   };
 207   return -1;
 208 };
 209
 210 wxString wxComboBox::GetString( int n ) const
 211 {
 212   GtkWidget *list = GTK_COMBO(m_widget)->list;
 213
 214   GList *child = g_list_nth( GTK_LIST(list)->children, n );
 215   if (child)
 216   {
 217     GtkBin *bin = GTK_BIN( child->data );
 218     GtkLabel *label = GTK_LABEL( bin->child );
 219     return label->label;
 220   };
 221   return "";
 222 };
 223
 224 wxString wxComboBox::GetStringSelection(void) const
 225 {
 226   GtkWidget *list = GTK_COMBO(m_widget)->list;
 227
 228   GList *selection = GTK_LIST(list)->selection;
 229   if (selection)
 230   {
 231     GtkBin *bin = GTK_BIN( selection->data );
 232     wxString tmp = GTK_LABEL( bin->child )->label;
 233     return tmp;
 234   };
 235   return "";
 236 };
 237
 238 int wxComboBox::Number(void) const
 239 {
 240   GtkWidget *list = GTK_COMBO(m_widget)->list;
 241
 242   GList *child = GTK_LIST(list)->children;
 243   int count = 0;
 244   while (child) { count++; child = child->next; };
 245   return count;
 246 };
 247
 248 void wxComboBox::SetSelection( int n )
 249 {
 250   GtkWidget *list = GTK_COMBO(m_widget)->list;
 251   gtk_list_select_item( GTK_LIST(list), n );
 252 };
 253
 254 void wxComboBox::SetStringSelection( const wxString &string )
 255 {
 256   int res = FindString( string );
 257   if (res == -1) return;
 258   SetSelection( res );
 259 };
 260
 261 wxString wxComboBox::GetValue(void) const
 262 {
 263   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 264   wxString tmp = gtk_entry_get_text( GTK_ENTRY(entry) );
 265   return tmp;
 266 };
 267
 268 void wxComboBox::SetValue( const wxString& value )
 269 {
 270   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 271   wxString tmp = "";
 272   if (!value.IsNull()) tmp = value;
 273   gtk_entry_set_text( GTK_ENTRY(entry), tmp );
 274 };
 275
 276 void wxComboBox::Copy(void)
 277 {
 278   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 279   gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
 280 };
 281
 282 void wxComboBox::Cut(void)
 283 {
 284   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 285   gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
 286 };
 287
 288 void wxComboBox::Paste(void)
 289 {
 290   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 291   gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
 292 };
 293
 294 void wxComboBox::SetInsertionPoint( long pos )
 295 {
 296   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 297   int tmp = (int) pos;
 298   gtk_entry_set_position( GTK_ENTRY(entry), tmp );
 299 };
 300
 301 void wxComboBox::SetInsertionPointEnd(void)
 302 {
 303   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 304   int pos = GTK_ENTRY(entry)->text_length;
 305   SetInsertionPoint( pos-1 );
 306 };
 307
 308 long wxComboBox::GetInsertionPoint(void) const
 309 {
 310   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 311   return (long) GTK_EDITABLE(entry)->current_pos;
 312 };
 313
 314 long wxComboBox::GetLastPosition(void) const
 315 {
 316   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 317   int pos = GTK_ENTRY(entry)->text_length;
 318   return (long) pos-1;
 319 };
 320
 321 void wxComboBox::Replace( long from, long to, const wxString& value )
 322 {
 323   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 324   gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 325   if (value.IsNull()) return;
 326   gint pos = (gint)to;
 327   gtk_editable_insert_text( GTK_EDITABLE(entry), value, value.Length(), &pos );
 328 };
 329
 330 void wxComboBox::Remove(long from, long to)
 331 {
 332   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 333   gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 334 };
 335
 336 void wxComboBox::SetSelection( long WXUNUSED(from), long WXUNUSED(to) )
 337 {
 338 };
 339
 340 void wxComboBox::SetEditable( bool WXUNUSED(editable) )
 341 {
 342 };
 343
 344