e47859daeb
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57588 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
433 lines
18 KiB
C++
433 lines
18 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/treebase.h
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// Purpose: wxTreeCtrl base classes and types
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// Author: Julian Smart et al
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// Modified by:
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// Created: 01/02/97
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// RCS-ID: $Id$
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// Copyright: (c) 1997,1998 Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_TREEBASE_H_
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#define _WX_TREEBASE_H_
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/defs.h"
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#if wxUSE_TREECTRL
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#include "wx/window.h" // for wxClientData
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#include "wx/event.h"
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#include "wx/dynarray.h"
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#if WXWIN_COMPATIBILITY_2_6
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// flags for deprecated `Expand(int action)', will be removed in next versions
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enum
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{
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wxTREE_EXPAND_EXPAND,
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wxTREE_EXPAND_COLLAPSE,
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wxTREE_EXPAND_COLLAPSE_RESET,
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wxTREE_EXPAND_TOGGLE
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};
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#endif // WXWIN_COMPATIBILITY_2_6
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// ----------------------------------------------------------------------------
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// wxTreeItemId identifies an element of the tree. In this implementation, it's
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// just a trivial wrapper around Win32 HTREEITEM or a pointer to some private
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// data structure in the generic version. It's opaque for the application and
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// the only method which can be used by user code is IsOk().
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// ----------------------------------------------------------------------------
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// Using this typedef removes an ambiguity when calling Remove()
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typedef void *wxTreeItemIdValue;
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class WXDLLIMPEXP_CORE wxTreeItemId
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{
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friend bool operator==(const wxTreeItemId&, const wxTreeItemId&);
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public:
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// ctors
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// 0 is invalid value for HTREEITEM
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wxTreeItemId() { m_pItem = 0; }
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// construct wxTreeItemId from the native item id
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wxTreeItemId(void *pItem) { m_pItem = pItem; }
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// default copy ctor/assignment operator are ok for us
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// accessors
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// is this a valid tree item?
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bool IsOk() const { return m_pItem != 0; }
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// return true if this item is not valid
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bool operator!() const { return !IsOk(); }
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// operations
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// invalidate the item
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void Unset() { m_pItem = 0; }
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operator bool() const { return IsOk(); }
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wxTreeItemIdValue m_pItem;
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};
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inline bool operator==(const wxTreeItemId& i1, const wxTreeItemId& i2)
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{
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return i1.m_pItem == i2.m_pItem;
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}
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inline bool operator!=(const wxTreeItemId& i1, const wxTreeItemId& i2)
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{
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return i1.m_pItem != i2.m_pItem;
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}
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// ----------------------------------------------------------------------------
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// wxTreeItemData is some (arbitrary) user class associated with some item. The
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// main advantage of having this class (compared to old untyped interface) is
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// that wxTreeItemData's are destroyed automatically by the tree and, as this
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// class has virtual dtor, it means that the memory will be automatically
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// freed. OTOH, we don't just use wxObject instead of wxTreeItemData because
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// the size of this class is critical: in any real application, each tree leaf
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// will have wxTreeItemData associated with it and number of leaves may be
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// quite big.
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//
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// Because the objects of this class are deleted by the tree, they should
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// always be allocated on the heap!
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxTreeItemData: public wxClientData
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{
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friend class WXDLLIMPEXP_FWD_CORE wxTreeCtrl;
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friend class WXDLLIMPEXP_FWD_CORE wxGenericTreeCtrl;
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public:
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// creation/destruction
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// --------------------
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// default ctor
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wxTreeItemData() { }
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// default copy ctor/assignment operator are ok
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// accessor: get the item associated with us
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const wxTreeItemId& GetId() const { return m_pItem; }
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void SetId(const wxTreeItemId& id) { m_pItem = id; }
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protected:
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wxTreeItemId m_pItem;
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};
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WX_DEFINE_EXPORTED_ARRAY_PTR(wxTreeItemIdValue, wxArrayTreeItemIdsBase);
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// this is a wrapper around the array class defined above which allow to wok
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// with vaue of natural wxTreeItemId type instead of using wxTreeItemIdValue
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// and does it without any loss of efficiency
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class WXDLLIMPEXP_CORE wxArrayTreeItemIds : public wxArrayTreeItemIdsBase
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{
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public:
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void Add(const wxTreeItemId& id)
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{ wxArrayTreeItemIdsBase::Add(id.m_pItem); }
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void Insert(const wxTreeItemId& id, size_t pos)
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{ wxArrayTreeItemIdsBase::Insert(id.m_pItem, pos); }
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wxTreeItemId Item(size_t i) const
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{ return wxTreeItemId(wxArrayTreeItemIdsBase::Item(i)); }
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wxTreeItemId operator[](size_t i) const { return Item(i); }
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};
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// enum for different images associated with a treectrl item
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enum wxTreeItemIcon
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{
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wxTreeItemIcon_Normal, // not selected, not expanded
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wxTreeItemIcon_Selected, // selected, not expanded
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wxTreeItemIcon_Expanded, // not selected, expanded
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wxTreeItemIcon_SelectedExpanded, // selected, expanded
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wxTreeItemIcon_Max
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};
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// special values for the 'state' parameter of wxTreeCtrl::SetItemState()
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static const int wxTREE_ITEMSTATE_NONE = -1; // not state (no display state image)
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static const int wxTREE_ITEMSTATE_NEXT = -2; // cycle to the next state
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static const int wxTREE_ITEMSTATE_PREV = -3; // cycle to the previous state
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// ----------------------------------------------------------------------------
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// wxTreeCtrl flags
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// ----------------------------------------------------------------------------
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#define wxTR_NO_BUTTONS 0x0000 // for convenience
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#define wxTR_HAS_BUTTONS 0x0001 // draw collapsed/expanded btns
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#define wxTR_NO_LINES 0x0004 // don't draw lines at all
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#define wxTR_LINES_AT_ROOT 0x0008 // connect top-level nodes
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#define wxTR_TWIST_BUTTONS 0x0010 // still used by wxTreeListCtrl
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#define wxTR_SINGLE 0x0000 // for convenience
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#define wxTR_MULTIPLE 0x0020 // can select multiple items
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#if WXWIN_COMPATIBILITY_2_8
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#define wxTR_EXTENDED 0x0040 // deprecated, don't use
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#endif // WXWIN_COMPATIBILITY_2_8
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#define wxTR_HAS_VARIABLE_ROW_HEIGHT 0x0080 // what it says
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#define wxTR_EDIT_LABELS 0x0200 // can edit item labels
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#define wxTR_ROW_LINES 0x0400 // put border around items
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#define wxTR_HIDE_ROOT 0x0800 // don't display root node
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#define wxTR_FULL_ROW_HIGHLIGHT 0x2000 // highlight full horz space
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// make the default control appearance look more native-like depending on the
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// platform
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#if defined(__WXGTK20__)
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#define wxTR_DEFAULT_STYLE (wxTR_HAS_BUTTONS | wxTR_NO_LINES)
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#elif defined(__WXMAC__)
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#define wxTR_DEFAULT_STYLE \
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(wxTR_HAS_BUTTONS | wxTR_NO_LINES | wxTR_FULL_ROW_HIGHLIGHT)
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#else
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#define wxTR_DEFAULT_STYLE (wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT)
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#endif
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#if WXWIN_COMPATIBILITY_2_6
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// deprecated, don't use
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#define wxTR_MAC_BUTTONS 0
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#define wxTR_AQUA_BUTTONS 0
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#endif // WXWIN_COMPATIBILITY_2_6
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// values for the `flags' parameter of wxTreeCtrl::HitTest() which determine
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// where exactly the specified point is situated:
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static const int wxTREE_HITTEST_ABOVE = 0x0001;
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static const int wxTREE_HITTEST_BELOW = 0x0002;
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static const int wxTREE_HITTEST_NOWHERE = 0x0004;
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// on the button associated with an item.
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static const int wxTREE_HITTEST_ONITEMBUTTON = 0x0008;
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// on the bitmap associated with an item.
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static const int wxTREE_HITTEST_ONITEMICON = 0x0010;
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// on the indent associated with an item.
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static const int wxTREE_HITTEST_ONITEMINDENT = 0x0020;
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// on the label (string) associated with an item.
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static const int wxTREE_HITTEST_ONITEMLABEL = 0x0040;
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// on the right of the label associated with an item.
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static const int wxTREE_HITTEST_ONITEMRIGHT = 0x0080;
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// on the label (string) associated with an item.
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static const int wxTREE_HITTEST_ONITEMSTATEICON = 0x0100;
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// on the left of the wxTreeCtrl.
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static const int wxTREE_HITTEST_TOLEFT = 0x0200;
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// on the right of the wxTreeCtrl.
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static const int wxTREE_HITTEST_TORIGHT = 0x0400;
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// on the upper part (first half) of the item.
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static const int wxTREE_HITTEST_ONITEMUPPERPART = 0x0800;
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// on the lower part (second half) of the item.
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static const int wxTREE_HITTEST_ONITEMLOWERPART = 0x1000;
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// anywhere on the item
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static const int wxTREE_HITTEST_ONITEM = wxTREE_HITTEST_ONITEMICON |
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wxTREE_HITTEST_ONITEMLABEL;
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// tree ctrl default name
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extern WXDLLIMPEXP_DATA_CORE(const char) wxTreeCtrlNameStr[];
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// ----------------------------------------------------------------------------
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// wxTreeItemAttr: a structure containing the visual attributes of an item
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxTreeItemAttr
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{
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public:
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// ctors
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wxTreeItemAttr() { }
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wxTreeItemAttr(const wxColour& colText,
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const wxColour& colBack,
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const wxFont& font)
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: m_colText(colText), m_colBack(colBack), m_font(font) { }
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// setters
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void SetTextColour(const wxColour& colText) { m_colText = colText; }
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void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; }
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void SetFont(const wxFont& font) { m_font = font; }
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// accessors
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bool HasTextColour() const { return m_colText.Ok(); }
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bool HasBackgroundColour() const { return m_colBack.Ok(); }
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bool HasFont() const { return m_font.Ok(); }
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const wxColour& GetTextColour() const { return m_colText; }
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const wxColour& GetBackgroundColour() const { return m_colBack; }
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const wxFont& GetFont() const { return m_font; }
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private:
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wxColour m_colText,
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m_colBack;
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wxFont m_font;
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};
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// ----------------------------------------------------------------------------
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// wxTreeEvent is a special class for all events associated with tree controls
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//
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// NB: note that not all accessors make sense for all events, see the event
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// descriptions below
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_FWD_CORE wxTreeCtrlBase;
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class WXDLLIMPEXP_CORE wxTreeEvent : public wxNotifyEvent
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{
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public:
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wxTreeEvent(wxEventType commandType = wxEVT_NULL, int id = 0);
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wxTreeEvent(wxEventType commandType,
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wxTreeCtrlBase *tree,
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const wxTreeItemId &item = wxTreeItemId());
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wxTreeEvent(const wxTreeEvent& event);
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virtual wxEvent *Clone() const { return new wxTreeEvent(*this); }
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// accessors
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// get the item on which the operation was performed or the newly
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// selected item for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events
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wxTreeItemId GetItem() const { return m_item; }
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void SetItem(const wxTreeItemId& item) { m_item = item; }
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// for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events, get the previously
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// selected item
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wxTreeItemId GetOldItem() const { return m_itemOld; }
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void SetOldItem(const wxTreeItemId& item) { m_itemOld = item; }
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// the point where the mouse was when the drag operation started (for
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// wxEVT_COMMAND_TREE_BEGIN_(R)DRAG events only) or click position
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wxPoint GetPoint() const { return m_pointDrag; }
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void SetPoint(const wxPoint& pt) { m_pointDrag = pt; }
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// keyboard data (for wxEVT_COMMAND_TREE_KEY_DOWN only)
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const wxKeyEvent& GetKeyEvent() const { return m_evtKey; }
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int GetKeyCode() const { return m_evtKey.GetKeyCode(); }
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void SetKeyEvent(const wxKeyEvent& evt) { m_evtKey = evt; }
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// label (for EVT_TREE_{BEGIN|END}_LABEL_EDIT only)
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const wxString& GetLabel() const { return m_label; }
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void SetLabel(const wxString& label) { m_label = label; }
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// edit cancel flag (for EVT_TREE_{BEGIN|END}_LABEL_EDIT only)
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bool IsEditCancelled() const { return m_editCancelled; }
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void SetEditCanceled(bool editCancelled) { m_editCancelled = editCancelled; }
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// Set the tooltip for the item (for EVT\_TREE\_ITEM\_GETTOOLTIP events)
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void SetToolTip(const wxString& toolTip) { m_label = toolTip; }
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wxString GetToolTip() { return m_label; }
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private:
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// not all of the members are used (or initialized) for all events
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wxKeyEvent m_evtKey;
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wxTreeItemId m_item,
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m_itemOld;
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wxPoint m_pointDrag;
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wxString m_label;
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bool m_editCancelled;
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friend class WXDLLIMPEXP_FWD_CORE wxTreeCtrl;
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friend class WXDLLIMPEXP_FWD_CORE wxGenericTreeCtrl;
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DECLARE_DYNAMIC_CLASS(wxTreeEvent)
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};
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typedef void (wxEvtHandler::*wxTreeEventFunction)(wxTreeEvent&);
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// ----------------------------------------------------------------------------
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// tree control events and macros for handling them
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// ----------------------------------------------------------------------------
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_BEGIN_DRAG;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_BEGIN_RDRAG;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_END_LABEL_EDIT;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_DELETE_ITEM;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_GET_INFO;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_SET_INFO;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_ITEM_EXPANDED;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_ITEM_EXPANDING;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_ITEM_COLLAPSED;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_ITEM_COLLAPSING;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_SEL_CHANGED;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_SEL_CHANGING;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_KEY_DOWN;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_ITEM_ACTIVATED;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_ITEM_MIDDLE_CLICK;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_END_DRAG;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP;
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extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_TREE_ITEM_MENU;
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#define wxTreeEventHandler(func) \
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(wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxTreeEventFunction, &func)
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#define wx__DECLARE_TREEEVT(evt, id, fn) \
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wx__DECLARE_EVT1(wxEVT_COMMAND_TREE_ ## evt, id, wxTreeEventHandler(fn))
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// GetItem() returns the item being dragged, GetPoint() the mouse coords
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//
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// if you call event.Allow(), the drag operation will start and a
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// EVT_TREE_END_DRAG event will be sent when the drag is over.
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#define EVT_TREE_BEGIN_DRAG(id, fn) wx__DECLARE_TREEEVT(BEGIN_DRAG, id, fn)
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#define EVT_TREE_BEGIN_RDRAG(id, fn) wx__DECLARE_TREEEVT(BEGIN_RDRAG, id, fn)
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// GetItem() is the item on which the drop occurred (if any) and GetPoint() the
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// current mouse coords
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#define EVT_TREE_END_DRAG(id, fn) wx__DECLARE_TREEEVT(END_DRAG, id, fn)
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// GetItem() returns the itme whose label is being edited, GetLabel() returns
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// the current item label for BEGIN and the would be new one for END.
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//
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// Vetoing BEGIN event means that label editing won't happen at all,
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// vetoing END means that the new value is discarded and the old one kept
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#define EVT_TREE_BEGIN_LABEL_EDIT(id, fn) wx__DECLARE_TREEEVT(BEGIN_LABEL_EDIT, id, fn)
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#define EVT_TREE_END_LABEL_EDIT(id, fn) wx__DECLARE_TREEEVT(END_LABEL_EDIT, id, fn)
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// provide/update information about GetItem() item
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#define EVT_TREE_GET_INFO(id, fn) wx__DECLARE_TREEEVT(GET_INFO, id, fn)
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#define EVT_TREE_SET_INFO(id, fn) wx__DECLARE_TREEEVT(SET_INFO, id, fn)
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// GetItem() is the item being expanded/collapsed, the "ING" versions can use
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#define EVT_TREE_ITEM_EXPANDED(id, fn) wx__DECLARE_TREEEVT(ITEM_EXPANDED, id, fn)
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#define EVT_TREE_ITEM_EXPANDING(id, fn) wx__DECLARE_TREEEVT(ITEM_EXPANDING, id, fn)
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#define EVT_TREE_ITEM_COLLAPSED(id, fn) wx__DECLARE_TREEEVT(ITEM_COLLAPSED, id, fn)
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#define EVT_TREE_ITEM_COLLAPSING(id, fn) wx__DECLARE_TREEEVT(ITEM_COLLAPSING, id, fn)
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// GetOldItem() is the item which had the selection previously, GetItem() is
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// the item which acquires selection
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#define EVT_TREE_SEL_CHANGED(id, fn) wx__DECLARE_TREEEVT(SEL_CHANGED, id, fn)
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#define EVT_TREE_SEL_CHANGING(id, fn) wx__DECLARE_TREEEVT(SEL_CHANGING, id, fn)
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// GetKeyCode() returns the key code
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// NB: this is the only message for which GetItem() is invalid (you may get the
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// item from GetSelection())
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#define EVT_TREE_KEY_DOWN(id, fn) wx__DECLARE_TREEEVT(KEY_DOWN, id, fn)
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// GetItem() returns the item being deleted, the associated data (if any) will
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// be deleted just after the return of this event handler (if any)
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#define EVT_TREE_DELETE_ITEM(id, fn) wx__DECLARE_TREEEVT(DELETE_ITEM, id, fn)
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// GetItem() returns the item that was activated (double click, enter, space)
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#define EVT_TREE_ITEM_ACTIVATED(id, fn) wx__DECLARE_TREEEVT(ITEM_ACTIVATED, id, fn)
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// GetItem() returns the item for which the context menu shall be shown
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#define EVT_TREE_ITEM_MENU(id, fn) wx__DECLARE_TREEEVT(ITEM_MENU, id, fn)
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// GetItem() returns the item that was clicked on
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#define EVT_TREE_ITEM_RIGHT_CLICK(id, fn) wx__DECLARE_TREEEVT(ITEM_RIGHT_CLICK, id, fn)
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#define EVT_TREE_ITEM_MIDDLE_CLICK(id, fn) wx__DECLARE_TREEEVT(ITEM_MIDDLE_CLICK, id, fn)
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// GetItem() returns the item whose state image was clicked on
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#define EVT_TREE_STATE_IMAGE_CLICK(id, fn) wx__DECLARE_TREEEVT(STATE_IMAGE_CLICK, id, fn)
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// GetItem() is the item for which the tooltip is being requested
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#define EVT_TREE_ITEM_GETTOOLTIP(id, fn) wx__DECLARE_TREEEVT(ITEM_GETTOOLTIP, id, fn)
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#endif // wxUSE_TREECTRL
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#endif // _WX_TREEBASE_H_
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