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 #ifdef __GNUG__
  16 #pragma interface "scrolbar.h"
  17 #endif
  18
  19 #include "wx/control.h"
  20
  21 WXDLLEXPORT_DATA(extern const char*) wxScrollBarNameStr;
  22
  23 // Scrollbar item
  24 class WXDLLEXPORT wxScrollBar: public wxControl
  25 {
  26   DECLARE_DYNAMIC_CLASS(wxScrollBar)
  27
  28 public:
  29   inline wxScrollBar(void) { m_pageSize = 0; m_viewSize = 0; m_objectSize = 0; }
  30   ~wxScrollBar(void);
  31
  32   inline wxScrollBar(wxWindow *parent, wxWindowID id,
  33            const wxPoint& pos = wxDefaultPosition,
  34            const wxSize& size = wxDefaultSize,
  35            long style = wxSB_HORIZONTAL,
  36            const wxValidator& validator = wxDefaultValidator,
  37            const wxString& name = wxScrollBarNameStr)
  38   {
  39       Create(parent, id, pos, size, style, validator, name);
  40   }
  41   bool Create(wxWindow *parent, wxWindowID id,
  42            const wxPoint& pos = wxDefaultPosition,
  43            const wxSize& size = wxDefaultSize,
  44            long style = wxSB_HORIZONTAL,
  45            const wxValidator& validator = wxDefaultValidator,
  46            const wxString& name = wxScrollBarNameStr);
  47
  48   int GetThumbPosition(void) 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   inline int GetValue(void) const { return GetThumbPosition(); }
  60   inline void SetValue(int viewStart) { SetThumbPosition(viewStart); }
  61   void GetValues(int *viewStart, int *viewLength, int *objectLength,
  62                  int *pageLength) const ;
  63   inline int GetViewLength() const { return m_viewSize; }
  64   inline 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   virtual WXHBRUSH OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
  73                         WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
  74   void MSWOnVScroll(WXWORD wParam, WXWORD pos, WXHWND control);
  75   void MSWOnHScroll(WXWORD wParam, WXWORD pos, WXHWND control);
  76
  77 #if WXWIN_COMPATIBILITY
  78   // Backward compatibility: generate an old-style scroll command
  79   void OnScroll(wxScrollEvent& event);
  80 #endif
  81
  82 protected:
  83     int m_pageSize;
  84     int m_viewSize;
  85     int m_objectSize;
  86
  87 DECLARE_EVENT_TABLE()
  88 };
  89
  90 #endif
  91     // _WX_SCROLBAR_H_