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