delete m_imageListState;
}
+void wxTreeCtrlBase::SetItemState(const wxTreeItemId& item, int state)
+{
+ if ( state == wxTREE_ITEMSTATE_NEXT )
+ {
+ int current = GetItemState(item);
+ if ( current == wxTREE_ITEMSTATE_NONE )
+ return;
+ state = current + 1;
+ if ( m_imageListState && state >= m_imageListState->GetImageCount() )
+ state = 0;
+ }
+ else if ( state == wxTREE_ITEMSTATE_PREV )
+ {
+ int current = GetItemState(item);
+ if ( current == wxTREE_ITEMSTATE_NONE )
+ return;
+ state = current - 1;
+ if ( state == -1 )
+ state = m_imageListState ? m_imageListState->GetImageCount() - 1 : 0;
+ }
+ // else: wxTREE_ITEMSTATE_NONE depending on platform
+
+ DoSetItemState(item, state);
+}
+
static void
wxGetBestTreeSize(const wxTreeCtrlBase* treeCtrl, wxTreeItemId id, wxSize& size)
{
if ( treeCtrl->GetBoundingRect(id, rect, true /* just the item */) )
{
+ // Translate to logical position so we get the full extent
+#if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
+ rect.x += treeCtrl->GetScrollPos(wxHORIZONTAL);
+ rect.y += treeCtrl->GetScrollPos(wxVERTICAL);
+#endif
+
size.IncTo(wxSize(rect.GetRight(), rect.GetBottom()));
}
else // use precise, if potentially slow, size computation method
{
// iterate over all items recursively
- wxGetBestTreeSize(this, GetRootItem(), size);
+ wxTreeItemId idRoot = GetRootItem();
+ if ( idRoot.IsOk() )
+ wxGetBestTreeSize(this, idRoot, size);
}
// need some minimal size even for empty tree
void wxTreeCtrlBase::ExpandAll()
{
+ if ( IsEmpty() )
+ return;
+
ExpandAllChildren(GetRootItem());
}
void wxTreeCtrlBase::ExpandAllChildren(const wxTreeItemId& item)
{
+ Freeze();
// expand this item first, this might result in its children being added on
// the fly
- Expand(item);
+ if ( item != GetRootItem() || !HasFlag(wxTR_HIDE_ROOT) )
+ Expand(item);
+ //else: expanding hidden root item is unsupported and unnecessary
// then (recursively) expand all the children
wxTreeItemIdValue cookie;
{
ExpandAllChildren(idCurr);
}
+ Thaw();
}
-#endif // wxUSE_TREECTRL
+void wxTreeCtrlBase::CollapseAll()
+{
+ if ( IsEmpty() )
+ return;
+
+ CollapseAllChildren(GetRootItem());
+}
+void wxTreeCtrlBase::CollapseAllChildren(const wxTreeItemId& item)
+{
+ Freeze();
+ // first (recursively) collapse all the children
+ wxTreeItemIdValue cookie;
+ for ( wxTreeItemId idCurr = GetFirstChild(item, cookie);
+ idCurr.IsOk();
+ idCurr = GetNextChild(item, cookie) )
+ {
+ CollapseAllChildren(idCurr);
+ }
+
+ // then collapse this element too
+ Collapse(item);
+ Thaw();
+}
+
+bool wxTreeCtrlBase::IsEmpty() const
+{
+ return !GetRootItem().IsOk();
+}
+
+#endif // wxUSE_TREECTRL