Override CanScroll() in wxScrolled to return the real state of the scrollbar instead of just relying on the wx[HV]SCROLL styles. Closes #15440. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74714 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
		
			
				
	
	
		
			54 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			54 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/////////////////////////////////////////////////////////////////////////////
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// Name:        wx/generic/scrolwin.h
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// Purpose:     generic wxScrollHelper
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// Author:      Vadim Zeitlin
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// Created:     2008-12-24 (replacing old file with the same name)
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// Copyright:   (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence:     wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GENERIC_SCROLLWIN_H_
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#define _WX_GENERIC_SCROLLWIN_H_
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// ----------------------------------------------------------------------------
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// generic wxScrollHelper implementation
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxScrollHelper : public wxScrollHelperBase
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{
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public:
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    wxScrollHelper(wxWindow *winToScroll);
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    // implement base class pure virtuals
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    virtual void AdjustScrollbars();
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    virtual bool IsScrollbarShown(int orient) const;
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protected:
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    virtual void DoScroll(int x, int y);
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    virtual void DoShowScrollbars(wxScrollbarVisibility horz,
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                                  wxScrollbarVisibility vert);
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private:
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    // helper of AdjustScrollbars(): does the work for the single scrollbar
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    //
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    // notice that the parameters passed by non-const references are modified
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    // by this function
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    void DoAdjustScrollbar(int orient,
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                           int clientSize,
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                           int virtSize,
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                           int pixelsPerUnit,
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                           int& scrollUnits,
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                           int& scrollPosition,
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                           int& scrollLinesPerPage,
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                           wxScrollbarVisibility visibility);
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    wxScrollbarVisibility m_xVisibility,
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                          m_yVisibility;
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    wxDECLARE_NO_COPY_CLASS(wxScrollHelper);
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};
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#endif // _WX_GENERIC_SCROLLWIN_H_
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