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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16 #pragma interface "scrolbar.h"
  17 #endif
  18
  19 // Scrollbar item
  20 class WXDLLEXPORT wxScrollBar: public wxScrollBarBase
  21 {
  22 public:
  23     wxScrollBar() { m_pageSize = 0; m_viewSize = 0; m_objectSize = 0; }
  24     ~wxScrollBar();
  25
  26     wxScrollBar(wxWindow *parent, wxWindowID id,
  27             const wxPoint& pos = wxDefaultPosition,
  28             const wxSize& size = wxDefaultSize,
  29             long style = wxSB_HORIZONTAL,
  30             const wxValidator& validator = wxDefaultValidator,
  31             const wxString& name = wxScrollBarNameStr)
  32     {
  33         Create(parent, id, pos, size, style, validator, name);
  34     }
  35     bool Create(wxWindow *parent, wxWindowID id,
  36             const wxPoint& pos = wxDefaultPosition,
  37             const wxSize& size = wxDefaultSize,
  38             long style = wxSB_HORIZONTAL,
  39             const wxValidator& validator = wxDefaultValidator,
  40             const wxString& name = wxScrollBarNameStr);
  41
  42     int GetThumbPosition() const ;
  43     int GetThumbSize() const { return m_pageSize; }
  44     int GetPageSize() const { return m_viewSize; }
  45     int GetRange() const { return m_objectSize; }
  46
  47     virtual void SetThumbPosition(int viewStart);
  48     virtual void SetScrollbar(int position, int thumbSize, int range, int pageSize,
  49             bool refresh = true);
  50
  51     // needed for RTTI
  52     void SetThumbSize( int s ) { SetScrollbar( GetThumbPosition() , s , GetRange() , GetPageSize() , true ) ; }
  53     void SetPageSize( int s ) { SetScrollbar( GetThumbPosition() , GetThumbSize() , GetRange() , s , true ) ; }
  54     void SetRange( int s ) { SetScrollbar( GetThumbPosition() , GetThumbSize() , s , GetPageSize() , true ) ; }
  55
  56     void Command(wxCommandEvent& event);
  57     virtual bool MSWOnScroll(int orientation, WXWORD wParam,
  58                              WXWORD pos, WXHWND control);
  59
  60     // override wxControl version to not use solid background here
  61     virtual WXHBRUSH MSWControlColor(WXHDC pDC, WXHWND hWnd);
  62
  63 protected:
  64     virtual wxSize DoGetBestSize() const;
  65     virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const;
  66
  67     int m_pageSize;
  68     int m_viewSize;
  69     int m_objectSize;
  70
  71     DECLARE_DYNAMIC_CLASS_NO_COPY(wxScrollBar)
  72 };
  73
  74 #endif
  75     // _WX_SCROLBAR_H_