git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@43022 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
217 lines
6.7 KiB
C++
217 lines
6.7 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: treebase.cpp
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// Purpose: Base wxTreeCtrl classes
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// Author: Julian Smart
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// Created: 01/02/97
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// Modified:
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// Id: $Id$
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// Copyright: (c) 1998 Robert Roebling, Julian Smart et al
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// =============================================================================
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// declarations
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// =============================================================================
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// -----------------------------------------------------------------------------
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// headers
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// -----------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_TREECTRL
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#include "wx/treectrl.h"
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#include "wx/imaglist.h"
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// ----------------------------------------------------------------------------
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// events
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// ----------------------------------------------------------------------------
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_DRAG)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_RDRAG)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_END_LABEL_EDIT)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_DELETE_ITEM)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_GET_INFO)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_SET_INFO)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_EXPANDED)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_EXPANDING)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_COLLAPSED)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_COLLAPSING)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_SEL_CHANGED)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_SEL_CHANGING)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_KEY_DOWN)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_ACTIVATED)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_MIDDLE_CLICK)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_END_DRAG)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_MENU)
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// ----------------------------------------------------------------------------
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// Tree event
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// ----------------------------------------------------------------------------
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IMPLEMENT_ABSTRACT_CLASS(wxTreeEvent, wxNotifyEvent)
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wxTreeEvent::wxTreeEvent(wxEventType commandType,
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wxTreeCtrlBase *tree,
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const wxTreeItemId& item)
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: wxNotifyEvent(commandType, tree->GetId()),
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m_item(item)
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{
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m_editCancelled = false;
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SetEventObject(tree);
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if ( item.IsOk() )
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SetClientObject(tree->GetItemData(item));
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}
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wxTreeEvent::wxTreeEvent(wxEventType commandType, int id)
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: wxNotifyEvent(commandType, id)
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{
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m_itemOld = 0l;
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m_editCancelled = false;
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}
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wxTreeEvent::wxTreeEvent(const wxTreeEvent & event)
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: wxNotifyEvent(event)
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{
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m_evtKey = event.m_evtKey;
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m_item = event.m_item;
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m_itemOld = event.m_itemOld;
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m_pointDrag = event.m_pointDrag;
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m_label = event.m_label;
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m_editCancelled = event.m_editCancelled;
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}
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// ----------------------------------------------------------------------------
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// wxTreeCtrlBase
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// ----------------------------------------------------------------------------
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wxTreeCtrlBase::~wxTreeCtrlBase()
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{
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if (m_ownsImageListNormal)
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delete m_imageListNormal;
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if (m_ownsImageListState)
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delete m_imageListState;
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}
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static void
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wxGetBestTreeSize(const wxTreeCtrlBase* treeCtrl, wxTreeItemId id, wxSize& size)
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{
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wxRect rect;
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if ( treeCtrl->GetBoundingRect(id, rect, true /* just the item */) )
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{
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size.IncTo(wxSize(rect.GetRight(), rect.GetBottom()));
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}
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wxTreeItemIdValue cookie;
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for ( wxTreeItemId item = treeCtrl->GetFirstChild(id, cookie);
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item.IsOk();
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item = treeCtrl->GetNextChild(id, cookie) )
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{
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wxGetBestTreeSize(treeCtrl, item, size);
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}
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}
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wxSize wxTreeCtrlBase::DoGetBestSize() const
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{
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wxSize size;
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// this doesn't really compute the total bounding rectangle of all items
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// but a not too bad guess of it which has the advantage of not having to
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// examine all (potentially hundreds or thousands) items in the control
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if (GetQuickBestSize())
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{
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for ( wxTreeItemId item = GetRootItem();
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item.IsOk();
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item = GetLastChild(item) )
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{
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wxRect rect;
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// last parameter is "true" to get only the dimensions of the text
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// label, we don't want to get the entire item width as it's determined
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// by the current size
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if ( GetBoundingRect(item, rect, true) )
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{
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if ( size.x < rect.x + rect.width )
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size.x = rect.x + rect.width;
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if ( size.y < rect.y + rect.height )
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size.y = rect.y + rect.height;
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}
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}
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}
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else // use precise, if potentially slow, size computation method
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{
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// iterate over all items recursively
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wxGetBestTreeSize(this, GetRootItem(), size);
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// but the above doesn't take into account the icon items nor the tree
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// "+"/"-" buttons which have about the same size
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wxCoord iconWidth, iconHeight;
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if ( !m_imageListNormal ||
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!m_imageListNormal->GetImageCount() ||
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!m_imageListNormal->GetSize(0, iconWidth, iconHeight) )
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{
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// FIXME: what is the default size of the tree buttons?
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iconWidth =
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iconHeight = 16;
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}
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// account for the icons if we have them
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if ( m_imageListNormal )
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{
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// FIXME: and how to get the margin? better be large...
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size.x += iconWidth + 10;
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}
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// and for the buttons always
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if ( !HasFlag(wxTR_NO_BUTTONS) )
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size.x += iconWidth;
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}
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// need some minimal size even for empty tree
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if ( !size.x || !size.y )
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size = wxControl::DoGetBestSize();
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else
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CacheBestSize(size);
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return size;
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}
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void wxTreeCtrlBase::ExpandAll()
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{
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ExpandAllChildren(GetRootItem());
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}
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void wxTreeCtrlBase::ExpandAllChildren(const wxTreeItemId& item)
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{
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// expand this item first, this might result in its children being added on
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// the fly
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Expand(item);
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// then (recursively) expand all the children
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wxTreeItemIdValue cookie;
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for ( wxTreeItemId idCurr = GetFirstChild(item, cookie);
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idCurr.IsOk();
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idCurr = GetNextChild(item, cookie) )
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{
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ExpandAllChildren(idCurr);
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}
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}
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#endif // wxUSE_TREECTRL
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