git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10826 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
		
			
				
	
	
		
			246 lines
		
	
	
		
			7.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			246 lines
		
	
	
		
			7.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
///////////////////////////////////////////////////////////////////////////////
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// Name:        wx/univ/slider.h
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// Purpose:     wxSlider control for wxUniversal
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// Author:      Vadim Zeitlin
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// Modified by:
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// Created:     09.02.01
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// RCS-ID:      $Id$
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// Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
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// Licence:     wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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    #pragma interface "univslider.h"
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#endif
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#ifndef _WX_UNIV_SLIDER_H_
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#define _WX_UNIV_SLIDER_H_
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#include "wx/univ/scrthumb.h"
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// ----------------------------------------------------------------------------
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// the actions supported by this control
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// ----------------------------------------------------------------------------
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// our actions are the same as scrollbars
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#define wxACTION_SLIDER_START       _T("start")     // to the beginning
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#define wxACTION_SLIDER_END         _T("end")       // to the end
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#define wxACTION_SLIDER_LINE_UP     _T("lineup")    // one line up/left
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#define wxACTION_SLIDER_PAGE_UP     _T("pageup")    // one page up/left
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#define wxACTION_SLIDER_LINE_DOWN   _T("linedown")  // one line down/right
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#define wxACTION_SLIDER_PAGE_DOWN   _T("pagedown")  // one page down/right
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#define wxACTION_SLIDER_PAGE_CHANGE _T("pagechange")// change page by numArg
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#define wxACTION_SLIDER_THUMB_DRAG      _T("thumbdrag")
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#define wxACTION_SLIDER_THUMB_MOVE      _T("thumbmove")
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#define wxACTION_SLIDER_THUMB_RELEASE   _T("thumbrelease")
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// ----------------------------------------------------------------------------
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// wxSlider
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxSlider : public wxSliderBase,
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                             public wxControlWithThumb
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{
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public:
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    // ctors and such
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    wxSlider();
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    wxSlider(wxWindow *parent,
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             wxWindowID id,
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             int value, int minValue, int maxValue,
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             const wxPoint& pos = wxDefaultPosition,
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             const wxSize& size = wxDefaultSize,
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             long style = wxSL_HORIZONTAL,
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             const wxValidator& validator = wxDefaultValidator,
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             const wxString& name = wxSliderNameStr);
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    bool Create(wxWindow *parent,
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                wxWindowID id,
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                int value, int minValue, int maxValue,
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                const wxPoint& pos = wxDefaultPosition,
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                const wxSize& size = wxDefaultSize,
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                long style = wxSL_HORIZONTAL,
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                const wxValidator& validator = wxDefaultValidator,
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                const wxString& name = wxSliderNameStr);
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    // implement base class pure virtuals
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    virtual int GetValue() const;
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    virtual void SetValue(int value);
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    virtual void SetRange(int minValue, int maxValue);
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    virtual int GetMin() const;
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    virtual int GetMax() const;
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    virtual void SetLineSize(int lineSize);
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    virtual void SetPageSize(int pageSize);
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    virtual int GetLineSize() const;
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    virtual int GetPageSize() const;
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    virtual void SetThumbLength(int lenPixels);
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    virtual int GetThumbLength() const;
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    virtual void SetTickFreq(int n, int WXUNUSED(dummy) = 0);
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    virtual int GetTickFreq() const { return m_tickFreq; }
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    // wxUniv-specific methods
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    // -----------------------
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    // is this a vertical slider?
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    bool IsVert() const { return (GetWindowStyle() & wxSL_VERTICAL) != 0; }
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    // get the slider orientation
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    wxOrientation GetOrientation() const
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        { return IsVert() ? wxVERTICAL : wxHORIZONTAL; }
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    // do we have labels?
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    bool HasLabels() const { return (GetWindowStyle() & wxSL_LABELS) != 0; }
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    // do we have ticks?
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    bool HasTicks() const { return (GetWindowStyle() & wxSL_TICKS) != 0; }
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    // implement wxControlWithThumb interface
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    virtual wxWindow *GetWindow() { return this; }
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    virtual bool IsVertical() const { return IsVert(); }
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    virtual wxScrollThumb::Shaft HitTest(const wxPoint& pt) const;
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    virtual wxCoord ThumbPosToPixel() const;
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    virtual int PixelToThumbPos(wxCoord x) const;
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    virtual void SetShaftPartState(wxScrollThumb::Shaft shaftPart,
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                                   int flag,
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                                   bool set = TRUE);
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    virtual void OnThumbDragStart(int pos);
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    virtual void OnThumbDrag(int pos);
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    virtual void OnThumbDragEnd(int pos);
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    virtual void OnPageScrollStart();
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    virtual bool OnPageScroll(int pageInc);
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    // for wxStdSliderButtonInputHandler
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    wxScrollThumb& GetThumb() { return m_thumb; }
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protected:
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    enum
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    {
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        INVALID_THUMB_VALUE = -0xffff
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    };
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    // overridden base class virtuals
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    virtual wxSize DoGetBestClientSize() const;
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    virtual void DoDraw(wxControlRenderer *renderer);
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    virtual wxBorder GetDefaultBorder() const { return wxBORDER_NONE; }
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    virtual bool PerformAction(const wxControlAction& action,
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                               long numArg = 0,
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                               const wxString& strArg = wxEmptyString);
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    // event handlers
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    void OnSize(wxSizeEvent& event);
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    // common part of all ctors
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    void Init();
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    // normalize the value to fit in the range
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    int NormalizeValue(int value) const;
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    // change the value by the given increment, return TRUE if really changed
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    bool ChangeValueBy(int inc);
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    // change the value to the given one
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    bool ChangeValueTo(int value);
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    // is the value inside the range?
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    bool IsInRange(int value) { return (value >= m_min) && (value <= m_max); }
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    // format the value for printing as label
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    virtual wxString FormatValue(int value) const;
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    // calculate max label size
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    wxSize CalcLabelSize() const;
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    // calculate m_rectLabel/Slider
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    void CalcGeometry();
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    // get the thumb size
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    wxSize GetThumbSize() const;
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    // get the shaft rect (uses m_rectSlider which is supposed to be calculated)
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    wxRect GetShaftRect() const;
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    // calc the current thumb position using the shaft rect (if the pointer is
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    // NULL, we calculate it here too)
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    void CalcThumbRect(const wxRect *rectShaft,
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                       wxRect *rectThumbOut,
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                       wxRect *rectLabelOut,
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                       int value = INVALID_THUMB_VALUE) const;
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    // return the slider rect calculating it if needed
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    const wxRect& GetSliderRect() const;
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    // refresh the current thumb position
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    void RefreshThumb();
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private:
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    // get the default thumb size (without using m_thumbSize)
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    wxSize GetDefaultThumbSize() const;
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    // the object which manages our thumb
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    wxScrollThumb m_thumb;
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    // the slider range and value
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    int m_min,
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        m_max,
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        m_value;
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    // the tick frequence (default is 1)
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    int m_tickFreq;
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    // the line and page increments (logical units)
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    int m_lineSize,
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        m_pageSize;
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    // the size of the thumb (in pixels)
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    int m_thumbSize;
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    // the part of the client area reserved for the label, the ticks and the
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    // part for the slider itself
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    wxRect m_rectLabel,
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           m_rectTicks,
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           m_rectSlider;
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    // the state of the thumb (wxCONTROL_XXX constants sum)
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    int m_thumbFlags;
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    DECLARE_EVENT_TABLE()
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    DECLARE_DYNAMIC_CLASS(wxSlider)
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};
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// ----------------------------------------------------------------------------
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// wxStdSliderButtonInputHandler: default slider input handling
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxStdSliderButtonInputHandler : public wxStdInputHandler
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{
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public:
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    // default ctor
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    wxStdSliderButtonInputHandler(wxInputHandler *inphand)
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        : wxStdInputHandler(inphand)
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    {
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    }
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    // base class methods
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    virtual bool HandleKey(wxControl *control,
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                           const wxKeyEvent& event,
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                           bool pressed);
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    virtual bool HandleMouse(wxControl *control,
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                             const wxMouseEvent& event);
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    virtual bool HandleMouseMove(wxControl *control,
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                                 const wxMouseEvent& event);
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    virtual bool HandleFocus(wxControl *control, const wxFocusEvent& event);
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};
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#endif // _WX_UNIV_SLIDER_H_
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