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473 lines
16 KiB
C++
473 lines
16 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/generic/dataview.h
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// Purpose: wxDataViewCtrl generic implementation header
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// Author: Robert Roebling
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// Modified By: Bo Yang
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// Copyright: (c) 1998 Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef __GENERICDATAVIEWCTRLH__
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#define __GENERICDATAVIEWCTRLH__
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#include "wx/defs.h"
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#include "wx/object.h"
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#include "wx/control.h"
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#include "wx/scrolwin.h"
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#include "wx/icon.h"
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#include "wx/vector.h"
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#if wxUSE_ACCESSIBILITY
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#include "wx/access.h"
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#endif // wxUSE_ACCESSIBILITY
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class WXDLLIMPEXP_FWD_CORE wxDataViewMainWindow;
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class WXDLLIMPEXP_FWD_CORE wxDataViewHeaderWindow;
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#if wxUSE_ACCESSIBILITY
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class WXDLLIMPEXP_FWD_CORE wxDataViewCtrlAccessible;
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#endif // wxUSE_ACCESSIBILITY
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// ---------------------------------------------------------
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// wxDataViewColumn
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// ---------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDataViewColumn : public wxDataViewColumnBase
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{
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public:
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wxDataViewColumn(const wxString& title,
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wxDataViewRenderer *renderer,
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unsigned int model_column,
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int width = wxDVC_DEFAULT_WIDTH,
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wxAlignment align = wxALIGN_CENTER,
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int flags = wxDATAVIEW_COL_RESIZABLE)
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: wxDataViewColumnBase(renderer, model_column),
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m_title(title)
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{
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Init(width, align, flags);
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}
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wxDataViewColumn(const wxBitmap& bitmap,
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wxDataViewRenderer *renderer,
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unsigned int model_column,
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int width = wxDVC_DEFAULT_WIDTH,
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wxAlignment align = wxALIGN_CENTER,
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int flags = wxDATAVIEW_COL_RESIZABLE)
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: wxDataViewColumnBase(bitmap, renderer, model_column)
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{
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Init(width, align, flags);
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}
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// implement wxHeaderColumnBase methods
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virtual void SetTitle(const wxString& title) wxOVERRIDE
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{
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m_title = title;
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UpdateWidth();
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}
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virtual wxString GetTitle() const wxOVERRIDE
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{
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return m_title;
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}
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virtual void SetWidth(int width) wxOVERRIDE
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{
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// Call the actual update method, used for both automatic and "manual"
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// width changes.
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WXUpdateWidth(width);
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// Do remember the last explicitly set width: this is used to prevent
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// UpdateColumnSizes() from resizing the last column to be smaller than
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// this size.
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m_manuallySetWidth = width;
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}
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virtual int GetWidth() const wxOVERRIDE;
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virtual void SetMinWidth(int minWidth) wxOVERRIDE
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{
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m_minWidth = minWidth;
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UpdateWidth();
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}
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virtual int GetMinWidth() const wxOVERRIDE
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{
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return m_minWidth;
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}
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virtual void SetAlignment(wxAlignment align) wxOVERRIDE
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{
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m_align = align;
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UpdateDisplay();
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}
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virtual wxAlignment GetAlignment() const wxOVERRIDE
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{
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return m_align;
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}
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virtual void SetFlags(int flags) wxOVERRIDE
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{
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m_flags = flags;
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UpdateDisplay();
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}
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virtual int GetFlags() const wxOVERRIDE
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{
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return m_flags;
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}
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virtual bool IsSortKey() const wxOVERRIDE
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{
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return m_sort;
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}
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virtual void UnsetAsSortKey() wxOVERRIDE;
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virtual void SetSortOrder(bool ascending) wxOVERRIDE;
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virtual bool IsSortOrderAscending() const wxOVERRIDE
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{
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return m_sortAscending;
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}
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virtual void SetBitmap( const wxBitmap& bitmap ) wxOVERRIDE
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{
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wxDataViewColumnBase::SetBitmap(bitmap);
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UpdateWidth();
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}
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// This method is specific to the generic implementation and is used only
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// by wxWidgets itself.
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void WXUpdateWidth(int width)
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{
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if ( width == m_width )
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return;
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m_width = width;
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UpdateWidth();
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}
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// This method is also internal and called when the column is resized by
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// user interactively.
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void WXOnResize(int width);
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virtual int WXGetSpecifiedWidth() const wxOVERRIDE;
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private:
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// common part of all ctors
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void Init(int width, wxAlignment align, int flags);
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// These methods forward to wxDataViewCtrl::OnColumnChange() and
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// OnColumnWidthChange() respectively, i.e. the latter is stronger than the
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// former.
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void UpdateDisplay();
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void UpdateWidth();
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// Return the effective value corresponding to the given width, handling
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// its negative values such as wxCOL_WIDTH_DEFAULT.
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int DoGetEffectiveWidth(int width) const;
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wxString m_title;
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int m_width,
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m_manuallySetWidth,
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m_minWidth;
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wxAlignment m_align;
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int m_flags;
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bool m_sort,
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m_sortAscending;
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friend class wxDataViewHeaderWindowBase;
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friend class wxDataViewHeaderWindow;
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friend class wxDataViewHeaderWindowMSW;
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};
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// ---------------------------------------------------------
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// wxDataViewCtrl
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// ---------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDataViewCtrl : public wxDataViewCtrlBase,
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public wxScrollHelper
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{
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friend class wxDataViewMainWindow;
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friend class wxDataViewHeaderWindowBase;
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friend class wxDataViewHeaderWindow;
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friend class wxDataViewHeaderWindowMSW;
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friend class wxDataViewColumn;
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#if wxUSE_ACCESSIBILITY
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friend class wxDataViewCtrlAccessible;
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#endif // wxUSE_ACCESSIBILITY
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public:
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wxDataViewCtrl() : wxScrollHelper(this)
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{
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Init();
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}
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wxDataViewCtrl( wxWindow *parent, wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize, long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxASCII_STR(wxDataViewCtrlNameStr) )
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: wxScrollHelper(this)
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{
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Create(parent, id, pos, size, style, validator, name);
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}
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virtual ~wxDataViewCtrl();
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void Init();
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bool Create(wxWindow *parent, wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize, long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxASCII_STR(wxDataViewCtrlNameStr));
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virtual bool AssociateModel( wxDataViewModel *model ) wxOVERRIDE;
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virtual bool AppendColumn( wxDataViewColumn *col ) wxOVERRIDE;
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virtual bool PrependColumn( wxDataViewColumn *col ) wxOVERRIDE;
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virtual bool InsertColumn( unsigned int pos, wxDataViewColumn *col ) wxOVERRIDE;
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virtual void DoSetExpanderColumn() wxOVERRIDE;
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virtual void DoSetIndent() wxOVERRIDE;
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virtual unsigned int GetColumnCount() const wxOVERRIDE;
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virtual wxDataViewColumn* GetColumn( unsigned int pos ) const wxOVERRIDE;
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virtual bool DeleteColumn( wxDataViewColumn *column ) wxOVERRIDE;
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virtual bool ClearColumns() wxOVERRIDE;
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virtual int GetColumnPosition( const wxDataViewColumn *column ) const wxOVERRIDE;
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virtual wxDataViewColumn *GetSortingColumn() const wxOVERRIDE;
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virtual wxVector<wxDataViewColumn *> GetSortingColumns() const wxOVERRIDE;
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virtual wxDataViewItem GetTopItem() const wxOVERRIDE;
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virtual int GetCountPerPage() const wxOVERRIDE;
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virtual int GetSelectedItemsCount() const wxOVERRIDE;
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virtual int GetSelections( wxDataViewItemArray & sel ) const wxOVERRIDE;
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virtual void SetSelections( const wxDataViewItemArray & sel ) wxOVERRIDE;
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virtual void Select( const wxDataViewItem & item ) wxOVERRIDE;
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virtual void Unselect( const wxDataViewItem & item ) wxOVERRIDE;
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virtual bool IsSelected( const wxDataViewItem & item ) const wxOVERRIDE;
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virtual void SelectAll() wxOVERRIDE;
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virtual void UnselectAll() wxOVERRIDE;
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virtual void EnsureVisible( const wxDataViewItem & item,
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const wxDataViewColumn *column = NULL ) wxOVERRIDE;
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virtual void HitTest( const wxPoint & point, wxDataViewItem & item,
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wxDataViewColumn* &column ) const wxOVERRIDE;
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virtual wxRect GetItemRect( const wxDataViewItem & item,
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const wxDataViewColumn *column = NULL ) const wxOVERRIDE;
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virtual bool SetRowHeight( int rowHeight ) wxOVERRIDE;
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virtual void Collapse( const wxDataViewItem & item ) wxOVERRIDE;
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virtual bool IsExpanded( const wxDataViewItem & item ) const wxOVERRIDE;
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virtual void SetFocus() wxOVERRIDE;
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virtual bool SetFont(const wxFont & font) wxOVERRIDE;
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#if wxUSE_ACCESSIBILITY
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virtual bool Show(bool show = true) wxOVERRIDE;
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virtual void SetName(const wxString &name) wxOVERRIDE;
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virtual bool Reparent(wxWindowBase *newParent) wxOVERRIDE;
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#endif // wxUSE_ACCESSIBILITY
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virtual bool Enable(bool enable = true) wxOVERRIDE;
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virtual bool AllowMultiColumnSort(bool allow) wxOVERRIDE;
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virtual bool IsMultiColumnSortAllowed() const wxOVERRIDE { return m_allowMultiColumnSort; }
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virtual void ToggleSortByColumn(int column) wxOVERRIDE;
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#if wxUSE_DRAG_AND_DROP
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virtual bool EnableDragSource( const wxDataFormat &format ) wxOVERRIDE;
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virtual bool EnableDropTarget( const wxDataFormat &format ) wxOVERRIDE;
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#endif // wxUSE_DRAG_AND_DROP
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virtual wxBorder GetDefaultBorder() const wxOVERRIDE;
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virtual void EditItem(const wxDataViewItem& item, const wxDataViewColumn *column) wxOVERRIDE;
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virtual bool SetHeaderAttr(const wxItemAttr& attr) wxOVERRIDE;
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virtual bool SetAlternateRowColour(const wxColour& colour) wxOVERRIDE;
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// This method is specific to generic wxDataViewCtrl implementation and
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// should not be used in portable code.
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wxColour GetAlternateRowColour() const { return m_alternateRowColour; }
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// The returned pointer is null if the control has wxDV_NO_HEADER style.
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//
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// This method is only available in the generic versions.
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wxHeaderCtrl* GenericGetHeader() const;
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protected:
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void EnsureVisibleRowCol( int row, int column );
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// Notice that row here may be invalid (i.e. >= GetRowCount()), this is not
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// an error and this function simply returns an invalid item in this case.
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wxDataViewItem GetItemByRow( unsigned int row ) const;
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int GetRowByItem( const wxDataViewItem & item ) const;
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// Mark the column as being used or not for sorting.
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void UseColumnForSorting(int idx);
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void DontUseColumnForSorting(int idx);
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// Return true if the given column is sorted
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bool IsColumnSorted(int idx) const;
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// Reset all columns currently used for sorting.
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void ResetAllSortColumns();
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virtual void DoEnableSystemTheme(bool enable, wxWindow* window) wxOVERRIDE;
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void OnDPIChanged(wxDPIChangedEvent& event);
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public: // utility functions not part of the API
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// returns the "best" width for the idx-th column
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unsigned int GetBestColumnWidth(int idx) const;
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// called by header window after reorder
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void ColumnMoved( wxDataViewColumn* col, unsigned int new_pos );
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// update the display after a change to an individual column
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void OnColumnChange(unsigned int idx);
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// update after the column width changes due to interactive resizing
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void OnColumnResized();
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// update after the column width changes because of e.g. title or bitmap
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// change, invalidates the column best width and calls OnColumnChange()
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void OnColumnWidthChange(unsigned int idx);
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// update after a change to the number of columns
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void OnColumnsCountChanged();
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wxWindow *GetMainWindow() { return (wxWindow*) m_clientArea; }
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// return the index of the given column in m_cols
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int GetColumnIndex(const wxDataViewColumn *column) const;
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// Return the index of the column having the given model index.
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int GetModelColumnIndex(unsigned int model_column) const;
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// return the column displayed at the given position in the control
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wxDataViewColumn *GetColumnAt(unsigned int pos) const;
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virtual wxDataViewColumn *GetCurrentColumn() const wxOVERRIDE;
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virtual void OnInternalIdle() wxOVERRIDE;
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#if wxUSE_ACCESSIBILITY
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virtual wxAccessible* CreateAccessible() wxOVERRIDE;
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#endif // wxUSE_ACCESSIBILITY
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private:
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virtual wxDataViewItem DoGetCurrentItem() const wxOVERRIDE;
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virtual void DoSetCurrentItem(const wxDataViewItem& item) wxOVERRIDE;
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virtual void DoExpand(const wxDataViewItem& item, bool expandChildren) wxOVERRIDE;
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void InvalidateColBestWidths();
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void InvalidateColBestWidth(int idx);
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void UpdateColWidths();
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void DoClearColumns();
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wxVector<wxDataViewColumn*> m_cols;
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// cached column best widths information, values are for
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// respective columns from m_cols and the arrays have same size
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struct CachedColWidthInfo
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{
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CachedColWidthInfo() : width(0), dirty(true) {}
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int width; // cached width or 0 if not computed
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bool dirty; // column was invalidated, header needs updating
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};
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wxVector<CachedColWidthInfo> m_colsBestWidths;
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// This indicates that at least one entry in m_colsBestWidths has 'dirty'
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// flag set. It's cheaper to check one flag in OnInternalIdle() than to
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// iterate over m_colsBestWidths to check if anything needs to be done.
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bool m_colsDirty;
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wxDataViewModelNotifier *m_notifier;
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wxDataViewMainWindow *m_clientArea;
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wxDataViewHeaderWindow *m_headerArea;
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// user defined color to draw row lines, may be invalid
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wxColour m_alternateRowColour;
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// columns indices used for sorting, empty if nothing is sorted
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wxVector<int> m_sortingColumnIdxs;
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// if true, allow sorting by more than one column
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bool m_allowMultiColumnSort;
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private:
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void OnSize( wxSizeEvent &event );
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virtual wxSize GetSizeAvailableForScrollTarget(const wxSize& size) wxOVERRIDE;
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// we need to return a special WM_GETDLGCODE value to process just the
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// arrows but let the other navigation characters through
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#ifdef __WXMSW__
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virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) wxOVERRIDE;
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#endif // __WXMSW__
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WX_FORWARD_TO_SCROLL_HELPER()
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private:
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wxDECLARE_DYNAMIC_CLASS(wxDataViewCtrl);
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wxDECLARE_NO_COPY_CLASS(wxDataViewCtrl);
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wxDECLARE_EVENT_TABLE();
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};
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#if wxUSE_ACCESSIBILITY
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//-----------------------------------------------------------------------------
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// wxDataViewCtrlAccessible
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//-----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDataViewCtrlAccessible: public wxWindowAccessible
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{
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public:
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wxDataViewCtrlAccessible(wxDataViewCtrl* win);
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virtual ~wxDataViewCtrlAccessible() {}
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virtual wxAccStatus HitTest(const wxPoint& pt, int* childId,
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wxAccessible** childObject) wxOVERRIDE;
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virtual wxAccStatus GetLocation(wxRect& rect, int elementId) wxOVERRIDE;
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virtual wxAccStatus Navigate(wxNavDir navDir, int fromId,
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int* toId, wxAccessible** toObject) wxOVERRIDE;
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virtual wxAccStatus GetName(int childId, wxString* name) wxOVERRIDE;
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virtual wxAccStatus GetChildCount(int* childCount) wxOVERRIDE;
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virtual wxAccStatus GetChild(int childId, wxAccessible** child) wxOVERRIDE;
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// wxWindowAccessible::GetParent() implementation is enough.
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// virtual wxAccStatus GetParent(wxAccessible** parent) wxOVERRIDE;
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virtual wxAccStatus DoDefaultAction(int childId) wxOVERRIDE;
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virtual wxAccStatus GetDefaultAction(int childId, wxString* actionName) wxOVERRIDE;
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virtual wxAccStatus GetDescription(int childId, wxString* description) wxOVERRIDE;
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virtual wxAccStatus GetHelpText(int childId, wxString* helpText) wxOVERRIDE;
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virtual wxAccStatus GetKeyboardShortcut(int childId, wxString* shortcut) wxOVERRIDE;
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virtual wxAccStatus GetRole(int childId, wxAccRole* role) wxOVERRIDE;
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virtual wxAccStatus GetState(int childId, long* state) wxOVERRIDE;
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virtual wxAccStatus GetValue(int childId, wxString* strValue) wxOVERRIDE;
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virtual wxAccStatus Select(int childId, wxAccSelectionFlags selectFlags) wxOVERRIDE;
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virtual wxAccStatus GetFocus(int* childId, wxAccessible** child) wxOVERRIDE;
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virtual wxAccStatus GetSelections(wxVariant* selections) wxOVERRIDE;
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};
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#endif // wxUSE_ACCESSIBILITY
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#endif // __GENERICDATAVIEWCTRLH__
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