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Avoid crash in SelectAll if there are no nodes besides the root

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39996 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn
2006-07-05 01:35:36 +00:00
parent 96221a45d3
commit 065fa541eb
1 changed files with 2 additions and 1 deletions
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3
wxPython/contrib/gizmos/wxCode/src/treelistctrl.cpp
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@@ -2926,7 +2926,7 @@ void wxTreeListMainWindow::SelectItem(const wxTreeItemId& itemId,
void wxTreeListMainWindow::SelectAll(bool extended_select) void wxTreeListMainWindow::SelectAll(bool extended_select)
{ {
wxCHECK_RET( GetWindowStyleFlag() & wxTR_MULTIPLE, wxT("invalid tree style") ); wxCHECK_RET( GetWindowStyleFlag() & wxTR_MULTIPLE, wxT("invalid tree style, must have wxTR_MULTIPLE style to select all items") );
wxTreeEvent event( wxEVT_COMMAND_TREE_SEL_CHANGING, m_owner->GetId() ); wxTreeEvent event( wxEVT_COMMAND_TREE_SEL_CHANGING, m_owner->GetId() );
event.SetItem( GetRootItem() ); event.SetItem( GetRootItem() );
@@ -2954,6 +2954,7 @@ void wxTreeListMainWindow::SelectAll(bool extended_select)
wxTreeItemId root = GetRootItem(); wxTreeItemId root = GetRootItem();
wxTreeListItem *first = (wxTreeListItem *)GetFirstChild (root, cookie).m_pItem; wxTreeListItem *first = (wxTreeListItem *)GetFirstChild (root, cookie).m_pItem;
wxTreeListItem *last = (wxTreeListItem *)GetLastChild (GetRootItem()).m_pItem; wxTreeListItem *last = (wxTreeListItem *)GetLastChild (GetRootItem()).m_pItem;
if (!first || !last) return;
if (TagAllChildrenUntilLast (first, last, true)) return; if (TagAllChildrenUntilLast (first, last, true)) return;
TagNextChildren (first, last, true); TagNextChildren (first, last, true);