include/wx/msw/scrolbar.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/scrolbar.h
   3 // Purpose:     wxScrollBar class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // Copyright:   (c) Julian Smart
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_SCROLBAR_H_
  12 #define _WX_SCROLBAR_H_
  13
  14 // Scrollbar item
  15 class WXDLLIMPEXP_CORE wxScrollBar: public wxScrollBarBase
  16 {
  17 public:
  18     wxScrollBar() { m_pageSize = 0; m_viewSize = 0; m_objectSize = 0; }
  19     virtual ~wxScrollBar();
  20
  21     wxScrollBar(wxWindow *parent, wxWindowID id,
  22             const wxPoint& pos = wxDefaultPosition,
  23             const wxSize& size = wxDefaultSize,
  24             long style = wxSB_HORIZONTAL,
  25             const wxValidator& validator = wxDefaultValidator,
  26             const wxString& name = wxScrollBarNameStr)
  27     {
  28         Create(parent, id, pos, size, style, validator, name);
  29     }
  30     bool Create(wxWindow *parent, wxWindowID id,
  31             const wxPoint& pos = wxDefaultPosition,
  32             const wxSize& size = wxDefaultSize,
  33             long style = wxSB_HORIZONTAL,
  34             const wxValidator& validator = wxDefaultValidator,
  35             const wxString& name = wxScrollBarNameStr);
  36
  37     int GetThumbPosition() const ;
  38     int GetThumbSize() const { return m_pageSize; }
  39     int GetPageSize() const { return m_viewSize; }
  40     int GetRange() const { return m_objectSize; }
  41
  42     virtual void SetThumbPosition(int viewStart);
  43     virtual void SetScrollbar(int position, int thumbSize, int range, int pageSize,
  44             bool refresh = true);
  45
  46     // needed for RTTI
  47     void SetThumbSize( int s ) { SetScrollbar( GetThumbPosition() , s , GetRange() , GetPageSize() , true ) ; }
  48     void SetPageSize( int s ) { SetScrollbar( GetThumbPosition() , GetThumbSize() , GetRange() , s , true ) ; }
  49     void SetRange( int s ) { SetScrollbar( GetThumbPosition() , GetThumbSize() , s , GetPageSize() , true ) ; }
  50
  51     void Command(wxCommandEvent& event);
  52     virtual bool MSWOnScroll(int orientation, WXWORD wParam,
  53                              WXWORD pos, WXHWND control);
  54
  55     // override wxControl version to not use solid background here
  56     virtual WXHBRUSH MSWControlColor(WXHDC pDC, WXHWND hWnd);
  57
  58     virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const;
  59
  60     // returns true if the platform should explicitly apply a theme border
  61     virtual bool CanApplyThemeBorder() const { return false; }
  62
  63 protected:
  64     virtual wxSize DoGetBestSize() const;
  65
  66     int m_pageSize;
  67     int m_viewSize;
  68     int m_objectSize;
  69
  70     DECLARE_DYNAMIC_CLASS_NO_COPY(wxScrollBar)
  71 };
  72
  73 #endif
  74     // _WX_SCROLBAR_H_