// Author: Stefan Csomor
// Modified by:
// Created: 1998-01-01
-// RCS-ID: $Id$
// Copyright: (c) Stefan Csomor
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
void wxMenu::Init()
{
m_doBreak = false;
- m_startRadioGroup = -1;
m_allowRearrange = true;
m_noEventsMode = false;
// not available on the mac platform
}
-void wxMenu::Attach(wxMenuBarBase *menubar)
-{
- wxMenuBase::Attach(menubar);
-
- EndRadioGroup();
-}
-
void wxMenu::SetAllowRearrange( bool allow )
{
m_allowRearrange = allow;
// function appends a new item or submenu to the menu
// append a new item or submenu to the menu
-bool wxMenu::DoInsertOrAppend(wxMenuItem *pItem, size_t pos)
+bool wxMenu::DoInsertOrAppend(wxMenuItem *item, size_t pos)
{
- wxASSERT_MSG( pItem != NULL, wxT("can't append NULL item to the menu") );
- GetPeer()->InsertOrAppend( pItem, pos );
+ wxASSERT_MSG( item != NULL, wxT("can't append NULL item to the menu") );
+ GetPeer()->InsertOrAppend( item, pos );
- if ( pItem->IsSeparator() )
+ bool check = false;
+
+ if ( item->IsSeparator() )
{
// nothing to do here
}
else
{
- wxMenu *pSubMenu = pItem->GetSubMenu() ;
+ wxMenu *pSubMenu = item->GetSubMenu() ;
if ( pSubMenu != NULL )
{
wxASSERT_MSG( pSubMenu->GetHMenu() != NULL , wxT("invalid submenu added"));
pSubMenu->DoRearrange();
}
- else
+ else if ( item->IsRadio() )
{
- if ( pItem->GetId() == idMenuTitle )
- pItem->GetMenu()->Enable( idMenuTitle, false );
- }
- }
+ // If a previous or next item is a radio button, add this radio
+ // button to the existing radio group. Otherwise start a new one
+ // for it.
+ wxMenuItemList& items = GetMenuItems();
- // if we're already attached to the menubar, we must update it
- if ( IsAttached() && GetMenuBar()->IsAttached() )
- GetMenuBar()->Refresh();
-
- return true ;
-}
+ size_t const
+ posItem = pos == (size_t)-1 ? items.GetCount() - 1 : pos;
-void wxMenu::EndRadioGroup()
-{
- // we're not inside a radio group any longer
- m_startRadioGroup = -1;
-}
+ wxMenuItemList::compatibility_iterator node = items.Item(posItem);
+ wxCHECK_MSG( node, false, wxS("New item must have been inserted") );
-wxMenuItem* wxMenu::DoAppend(wxMenuItem *item)
-{
- wxCHECK_MSG( item, NULL, wxT("NULL item in wxMenu::DoAppend") );
+ bool foundGroup = false;
+ if ( node->GetPrevious() )
+ {
+ wxMenuItem* const prev = node->GetPrevious()->GetData();
- bool check = false;
+ if ( prev->IsRadio() )
+ {
+ // This item is in the same group as the preceding one so
+ // we should use the same starting item, but getting it is
+ // a bit difficult as we can't query the start radio group
+ // item for it.
+ const int groupStart = prev->IsRadioGroupStart()
+ ? posItem - 1
+ : prev->GetRadioGroupStart();
+ item->SetRadioGroupStart(groupStart);
+
+ // We must also account for the new item by incrementing
+ // the index of the last item in this group.
+ wxMenuItem* const first = items.Item(groupStart)->GetData();
+ first->SetRadioGroupEnd(first->GetRadioGroupEnd() + 1);
+
+ foundGroup = true;
+ }
+ }
- if ( item->GetKind() == wxITEM_RADIO )
- {
- int count = GetMenuItemCount();
+ if ( !foundGroup && node->GetNext() )
+ {
+ wxMenuItem* const next = node->GetNext()->GetData();
- if ( m_startRadioGroup == -1 )
- {
- // start a new radio group
- m_startRadioGroup = count;
+ if ( next->IsRadio() )
+ {
+ // This item is the new starting item of this group as the
+ // previous item is not a radio item.
+ wxASSERT_MSG( next->IsRadioGroupStart(),
+ wxS("Where is the start of this group?") );
- // for now it has just one element
- item->SetAsRadioGroupStart();
- item->SetRadioGroupEnd(m_startRadioGroup);
+ // The index of the last item of the radio group must be
+ // incremented to account for the new item.
+ item->SetAsRadioGroupStart();
+ item->SetRadioGroupEnd(next->GetRadioGroupEnd() + 1);
- // ensure that we have a checked item in the radio group
- check = true;
- }
- else // extend the current radio group
- {
- // we need to update its end item
- item->SetRadioGroupStart(m_startRadioGroup);
- wxMenuItemList::compatibility_iterator node = GetMenuItems().Item(m_startRadioGroup);
+ // And the previous start item is not one any longer.
+ next->SetAsRadioGroupStart(false);
- if ( node )
- {
- node->GetData()->SetRadioGroupEnd(count);
+ foundGroup = true;
+ }
}
- else
+
+ if ( !foundGroup )
{
- wxFAIL_MSG( wxT("where is the radio group start item?") );
+ // start a new radio group
+ item->SetAsRadioGroupStart();
+ item->SetRadioGroupEnd(posItem);
+
+ // ensure that we have a checked item in the radio group
+ check = true;
}
}
+ else
+ {
+ if ( item->GetId() == idMenuTitle )
+ item->GetMenu()->Enable( idMenuTitle, false );
+ }
}
- else // not a radio item
+
+ // We also need to update the indices of radio group start and end we store
+ // in any existing radio items after this item.
+ if ( pos < GetMenuItemCount() - 1 ) // takes into account pos == -1 case
{
- EndRadioGroup();
+ for ( wxMenuItemList::compatibility_iterator
+ node = GetMenuItems().Item(pos + 1);
+ node;
+ node = node->GetNext() )
+ {
+ wxMenuItem* const item = node->GetData();
+ if ( item->IsRadio() )
+ {
+ if ( item->IsRadioGroupStart() )
+ {
+ // If the starting item is after the just inserted one,
+ // then the end one must be after it too and needs to be
+ // updated.
+ item->SetRadioGroupEnd(item->GetRadioGroupEnd() + 1);
+ }
+ else // Not the first radio group item.
+ {
+ // We need to update the start item index only if it is
+ // after the just inserted item.
+ const int groupStart = item->GetRadioGroupStart();
+ if ( (size_t)groupStart > pos )
+ item->SetRadioGroupStart(groupStart + 1);
+ }
+ }
+ }
}
- if ( !wxMenuBase::DoAppend(item) || !DoInsertOrAppend(item) )
- return NULL;
+ // if we're already attached to the menubar, we must update it
+ if ( IsAttached() && GetMenuBar()->IsAttached() )
+ GetMenuBar()->Refresh();
if ( check )
- // check the item initially
item->Check(true);
- return item;
+ return true ;
+}
+
+wxMenuItem* wxMenu::DoAppend(wxMenuItem *item)
+{
+ if (wxMenuBase::DoAppend(item) && DoInsertOrAppend(item) )
+ return item;
+
+ return NULL;
}
wxMenuItem* wxMenu::DoInsert(size_t pos, wxMenuItem *item)
wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
{
- if ( m_startRadioGroup != -1 )
+ if ( item->IsRadio() )
{
// Check if we're removing the item starting the radio group
- if ( GetMenuItems().Item(m_startRadioGroup)->GetData() == item )
+ if ( item->IsRadioGroupStart() )
{
- // Yes, we do, so reset its index as the next item added shouldn't
- // count as part of the same radio group anyhow.
- m_startRadioGroup = -1;
+ // Yes, we do, update the next radio group item, if any, to be the
+ // start one now.
+ const int endGroup = item->GetRadioGroupEnd();
+
+ wxMenuItemList::compatibility_iterator
+ node = GetMenuItems().Item(endGroup);
+ wxASSERT_MSG( node, wxS("Should have valid radio group end") );
+
+ while ( node->GetData() != item )
+ {
+ const wxMenuItemList::compatibility_iterator
+ prevNode = node->GetPrevious();
+ wxMenuItem* const prevItem = prevNode->GetData();
+ if ( prevItem == item )
+ {
+ prevItem->SetAsRadioGroupStart();
+ prevItem->SetRadioGroupEnd(endGroup);
+ break;
+ }
+
+ node = prevNode;
+ }
}
}
projects / wxWidgets.git / blobdiff