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 // 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   gtk_container_add( GTK_CONTAINER(list), list_item );
 147
 148   gtk_widget_show( list_item );
 149
 150   m_clientData.Append( (wxObject*)clientData );
 151 }
 152
 153 void wxComboBox::Delete( int n )
 154 {
 155   GtkWidget *list = GTK_COMBO(m_widget)->list;
 156   gtk_list_clear_items( GTK_LIST(list), n, n );
 157
 158   wxNode *node = m_clientData.Nth( n );
 159   if (!node)
 160   {
 161     wxFAIL_MSG( "wxComboBox: wrong index" );
 162   }
 163   else
 164     m_clientData.DeleteNode( node );
 165 }
 166
 167 int wxComboBox::FindString( const wxString &item )
 168 {
 169   GtkWidget *list = GTK_COMBO(m_widget)->list;
 170
 171   GList *child = GTK_LIST(list)->children;
 172   int count = 0;
 173   while (child)
 174   {
 175     GtkBin *bin = GTK_BIN( child->data );
 176     GtkLabel *label = GTK_LABEL( bin->child );
 177     if (item == label->label) return count;
 178     count++;
 179     child = child->next;
 180   }
 181
 182   wxFAIL_MSG( "wxComboBox: string not found" );
 183
 184   return -1;
 185 }
 186
 187 char* wxComboBox::GetClientData( int n )
 188 {
 189   wxNode *node = m_clientData.Nth( n );
 190   if (node) return (char*)node->Data();
 191
 192   wxFAIL_MSG( "wxComboBox: wrong index" );
 193
 194   return NULL;
 195 }
 196
 197 void wxComboBox::SetClientData( int n, char * clientData )
 198 {
 199   wxNode *node = m_clientData.Nth( n );
 200   if (node) node->SetData( (wxObject*) clientData );
 201
 202   wxFAIL_MSG( "wxComboBox: wrong index" );
 203 }
 204
 205 int wxComboBox::GetSelection(void) const
 206 {
 207   GtkWidget *list = GTK_COMBO(m_widget)->list;
 208
 209   GList *selection = GTK_LIST(list)->selection;
 210   if (selection)
 211   {
 212     GList *child = GTK_LIST(list)->children;
 213     int count = 0;
 214     while (child)
 215     {
 216       if (child->data == selection->data) return count;
 217       count++;
 218       child = child->next;
 219     }
 220   }
 221
 222   wxFAIL_MSG( "wxComboBox: no selection" );
 223
 224   return -1;
 225 }
 226
 227 wxString wxComboBox::GetString( int n ) const
 228 {
 229   GtkWidget *list = GTK_COMBO(m_widget)->list;
 230
 231   GList *child = g_list_nth( GTK_LIST(list)->children, n );
 232   if (child)
 233   {
 234     GtkBin *bin = GTK_BIN( child->data );
 235     GtkLabel *label = GTK_LABEL( bin->child );
 236     return label->label;
 237   }
 238
 239   wxFAIL_MSG( "wxComboBox: wrong index" );
 240
 241   return "";
 242 }
 243
 244 wxString wxComboBox::GetStringSelection(void) const
 245 {
 246   GtkWidget *list = GTK_COMBO(m_widget)->list;
 247
 248   GList *selection = GTK_LIST(list)->selection;
 249   if (selection)
 250   {
 251     GtkBin *bin = GTK_BIN( selection->data );
 252     wxString tmp = GTK_LABEL( bin->child )->label;
 253     return tmp;
 254   }
 255
 256   wxFAIL_MSG( "wxComboBox: no selection" );
 257
 258   return "";
 259 }
 260
 261 int wxComboBox::Number(void) const
 262 {
 263   GtkWidget *list = GTK_COMBO(m_widget)->list;
 264
 265   GList *child = GTK_LIST(list)->children;
 266   int count = 0;
 267   while (child) { count++; child = child->next; }
 268   return count;
 269 }
 270
 271 void wxComboBox::SetSelection( int n )
 272 {
 273   GtkWidget *list = GTK_COMBO(m_widget)->list;
 274   gtk_list_select_item( GTK_LIST(list), n );
 275 }
 276
 277 void wxComboBox::SetStringSelection( const wxString &string )
 278 {
 279   int res = FindString( string );
 280   if (res == -1) return;
 281   SetSelection( res );
 282 }
 283
 284 wxString wxComboBox::GetValue(void) const
 285 {
 286   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 287   wxString tmp = gtk_entry_get_text( GTK_ENTRY(entry) );
 288   return tmp;
 289 }
 290
 291 void wxComboBox::SetValue( const wxString& value )
 292 {
 293   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 294   wxString tmp = "";
 295   if (!value.IsNull()) tmp = value;
 296   gtk_entry_set_text( GTK_ENTRY(entry), tmp );
 297 }
 298
 299 void wxComboBox::Copy(void)
 300 {
 301   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 302   gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
 303 }
 304
 305 void wxComboBox::Cut(void)
 306 {
 307   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 308   gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
 309 }
 310
 311 void wxComboBox::Paste(void)
 312 {
 313   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 314   gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
 315 }
 316
 317 void wxComboBox::SetInsertionPoint( long pos )
 318 {
 319   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 320   int tmp = (int) pos;
 321   gtk_entry_set_position( GTK_ENTRY(entry), tmp );
 322 }
 323
 324 void wxComboBox::SetInsertionPointEnd(void)
 325 {
 326   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 327   int pos = GTK_ENTRY(entry)->text_length;
 328   SetInsertionPoint( pos-1 );
 329 }
 330
 331 long wxComboBox::GetInsertionPoint(void) const
 332 {
 333   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 334   return (long) GTK_EDITABLE(entry)->current_pos;
 335 }
 336
 337 long wxComboBox::GetLastPosition(void) const
 338 {
 339   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 340   int pos = GTK_ENTRY(entry)->text_length;
 341   return (long) pos-1;
 342 }
 343
 344 void wxComboBox::Replace( long from, long to, const wxString& value )
 345 {
 346   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 347   gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 348   if (value.IsNull()) return;
 349   gint pos = (gint)to;
 350   gtk_editable_insert_text( GTK_EDITABLE(entry), value, value.Length(), &pos );
 351 }
 352
 353 void wxComboBox::Remove(long from, long to)
 354 {
 355   GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 356   gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 357 }
 358
 359 void wxComboBox::SetSelection( long WXUNUSED(from), long WXUNUSED(to) )
 360 {
 361 }
 362
 363 void wxComboBox::SetEditable( bool WXUNUSED(editable) )
 364 {
 365 }
 366
 367