include/wx/msw/scrolbar.h

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