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