include/wx/os2/scrolbar.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        scrollbar.h
   3 // Purpose:     wxScrollBar class
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/15/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_SCROLBAR_H_
  13 #define _WX_SCROLBAR_H_
  14
  15 #include "wx/control.h"
  16
  17 WXDLLEXPORT_DATA(extern const char*) wxScrollBarNameStr;
  18
  19 // Scrollbar item
  20 class WXDLLEXPORT wxScrollBar: public wxControl
  21 {
  22   DECLARE_DYNAMIC_CLASS(wxScrollBar)
  23
  24 public:
  25   inline wxScrollBar() { m_pageSize = 0; m_viewSize = 0; m_objectSize = 0; }
  26   ~wxScrollBar();
  27
  28   inline wxScrollBar(wxWindow *parent, wxWindowID id,
  29            const wxPoint& pos = wxDefaultPosition,
  30            const wxSize& size = wxDefaultSize,
  31            long style = wxSB_HORIZONTAL,
  32 #if wxUSE_VALIDATORS
  33            const wxValidator& validator = wxDefaultValidator,
  34 #endif
  35            const wxString& name = wxScrollBarNameStr)
  36   {
  37       Create(parent, id, pos, size, style, validator, name);
  38   }
  39   bool Create(wxWindow *parent, wxWindowID id,
  40            const wxPoint& pos = wxDefaultPosition,
  41            const wxSize& size = wxDefaultSize,
  42            long style = wxSB_HORIZONTAL,
  43 #if wxUSE_VALIDATORS
  44            const wxValidator& validator = wxDefaultValidator,
  45 #endif
  46            const wxString& name = wxScrollBarNameStr);
  47
  48   int GetThumbPosition() const ;
  49   inline int GetThumbSize() const { return m_pageSize; }
  50   inline int GetPageSize() const { return m_viewSize; }
  51   inline int GetRange() const { return m_objectSize; }
  52
  53   virtual void SetThumbPosition(int viewStart);
  54   virtual void SetScrollbar(int position, int thumbSize, int range, int pageSize,
  55     bool refresh = TRUE);
  56
  57 #if WXWIN_COMPATIBILITY
  58   // Backward compatibility
  59   int GetValue() const { return GetThumbPosition(); }
  60   void SetValue(int viewStart) { SetThumbPosition(viewStart); }
  61   void GetValues(int *viewStart, int *viewLength, int *objectLength,
  62           int *pageLength) const ;
  63   int GetViewLength() const { return m_viewSize; }
  64   int GetObjectLength() const { return m_objectSize; }
  65
  66   void SetPageSize(int pageLength);
  67   void SetObjectLength(int objectLength);
  68   void SetViewLength(int viewLength);
  69 #endif
  70
  71   void Command(wxCommandEvent& event);
  72
  73   virtual WXHBRUSH OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
  74           WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
  75   virtual bool OS2OnScroll(int orientation, WXWORD wParam,
  76                            WXWORD pos, WXHWND control);
  77
  78 #if WXWIN_COMPATIBILITY
  79   // Backward compatibility: generate an old-style scroll command
  80   void OnScroll(wxScrollEvent& event);
  81 #endif // WXWIN_COMPATIBILITY
  82
  83 protected:
  84   int m_pageSize;
  85   int m_viewSize;
  86   int m_objectSize;
  87
  88 DECLARE_EVENT_TABLE()
  89 };
  90
  91 #endif
  92     // _WX_SCROLBAR_H_