void wxTreebook::DoInternalRemovePageRange(size_t pagePos, size_t subCount)
{
// Attention: this function is only for a situation when we delete a node
// with all its children so pagePos is the node's index and subCount is the
// node children count
wxASSERT_MSG( pagePos + subCount < m_treeIds.size(),
wxT("Invalid page index") );
wxTreeItemId pageId = m_treeIds[pagePos];
wxVector<wxTreeItemId>::iterator itPos = m_treeIds.begin() + pagePos;
m_treeIds.erase(itPos, itPos + subCount + 1);
if ( m_selection != wxNOT_FOUND )
{
if ( (size_t)m_selection > pagePos + subCount)
{
// selection is far after the deleted page, so just update the index and move on
m_selection -= 1 + subCount;
}
else if ( (size_t)m_selection >= pagePos )
{
wxTreeCtrl *tree = GetTreeCtrl();
// as selected page is going to be deleted, try to select the next
// sibling if exists, if not then the parent
wxTreeItemId nodeId = tree->GetNextSibling(pageId);
m_selection = wxNOT_FOUND;
if ( nodeId.IsOk() )
{
// selecting next siblings
tree->SelectItem(nodeId);
}
else // no next sibling, select the parent
{
wxTreeItemId parentId = tree->GetItemParent(pageId);
if ( parentId.IsOk() && parentId != tree->GetRootItem() )
{
tree->SelectItem(parentId);
}
else // parent is root
{
// we can't select it as it's hidden
DoUpdateSelection(false, wxNOT_FOUND);
}
}
}
//else: nothing to do -- selection is before the deleted node
}
else
{
DoUpdateSelection(false, wxNOT_FOUND);
}
}
bool wxTreebook::DoInsertSubPage(size_t pagePos,
wxTreebookPage *page,
const wxString& text,
bool bSelect,
int imageId)
{
wxTreeItemId parentId = DoInternalGetPage(pagePos);
wxCHECK_MSG( parentId.IsOk(), false, wxT("invalid tree item") );
wxTreeCtrl *tree = GetTreeCtrl();
size_t newPos = pagePos + tree->GetChildrenCount(parentId, true) + 1;
wxASSERT_MSG( newPos <= DoInternalGetPageCount(),
wxT("Internal error in tree insert point calculation") );
if ( !wxBookCtrlBase::InsertPage(newPos, page, text, bSelect, imageId) )
return false;
wxTreeItemId newId = tree->AppendItem(parentId, text, imageId);
if ( !newId.IsOk() )
{
(void)wxBookCtrlBase::DoRemovePage(newPos);
wxFAIL_MSG( wxT("Failed to insert treebook page") );
return false;
}
DoInternalAddPage(newPos, page, newId);
DoUpdateSelection(bSelect, newPos);
return true;
}
bool wxTreebook::DoInsertPage(size_t pagePos,
wxWindow *page,
const wxString& text,
bool bSelect,
int imageId)
{
wxCHECK_MSG( pagePos <= DoInternalGetPageCount(), false,
wxT("Invalid treebook page position") );
if ( !wxBookCtrlBase::InsertPage(pagePos, page, text, bSelect, imageId) )
return false;
wxTreeCtrl *tree = GetTreeCtrl();
wxTreeItemId newId;
if ( pagePos == DoInternalGetPageCount() )
{
// append the page to the end
wxTreeItemId rootId = tree->GetRootItem();
newId = tree->AppendItem(rootId, text, imageId);
}
else // insert the new page before the given one
{
wxTreeItemId nodeId = m_treeIds[pagePos];
wxTreeItemId previousId = tree->GetPrevSibling(nodeId);
wxTreeItemId parentId = tree->GetItemParent(nodeId);
if ( previousId.IsOk() )
{
// insert before the sibling - previousId
newId = tree->InsertItem(parentId, previousId, text, imageId);
}
else // no prev siblings -- insert as a first child
{
wxASSERT_MSG( parentId.IsOk(), wxT( "Tree has no root node?" ) );
newId = tree->PrependItem(parentId, text, imageId);
}
}
if ( !newId.IsOk() )
{
//something wrong -> cleaning and returning with false
(void)wxBookCtrlBase::DoRemovePage(pagePos);
wxFAIL_MSG( wxT("Failed to insert treebook page") );
return false;
}
DoInternalAddPage(pagePos, page, newId);
DoUpdateSelection(bSelect, pagePos);
return true;
}
void wxTreebook::DoInternalRemovePageRange(size_t pagePos, size_t subCount)
{
// Attention: this function is only for a situation when we delete a node
// with all its children so pagePos is the node's index and subCount is the
// node children count
wxASSERT_MSG( pagePos + subCount < m_treeIds.GetCount(),
wxT("Ivalid page index") );
wxTreeItemId pageId = m_treeIds[pagePos];
m_treeIds.RemoveAt(pagePos, subCount + 1);
if ( m_selection != wxNOT_FOUND )
{
if ( (size_t)m_selection > pagePos + subCount)
{
// selection is far after the deleted page, so just update the index and move on
m_selection -= 1 + subCount;
if ( m_actualSelection != wxNOT_FOUND)
{
m_actualSelection -= subCount + 1;
}
}
else if ( (size_t)m_selection >= pagePos )
{
wxTreeCtrl *tree = GetTreeCtrl();
// as selected page is going to be deleted, try to select the next
// sibling if exists, if not then the parent
wxTreeItemId nodeId = tree->GetNextSibling(pageId);
m_selection = wxNOT_FOUND;
m_actualSelection = wxNOT_FOUND;
if ( nodeId.IsOk() )
{
// selecting next siblings
tree->SelectItem(nodeId);
}
else // no next sibling, select the parent
{
wxTreeItemId parentId = tree->GetItemParent(pageId);
if ( parentId.IsOk() && parentId != tree->GetRootItem() )
{
tree->SelectItem(parentId);
}
else // parent is root
{
// we can't select it as it's hidden
DoUpdateSelection(false, wxNOT_FOUND);
}
}
}
else if ( m_actualSelection != wxNOT_FOUND &&
(size_t)m_actualSelection >= pagePos )
{
// nothing to do -- selection is before the deleted node, but
// actually shown page (the first (sub)child with page != NULL) is
// already deleted
m_actualSelection = m_selection;
// send event as documented
DoSetSelection(m_selection, SetSelection_SendEvent);
}
//else: nothing to do -- selection is before the deleted node
}
else
{
DoUpdateSelection(false, wxNOT_FOUND);
}
}
