include/wx/gtk1/scrolwin.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk1/scrolwin.h
   3 // Purpose:     wxScrolledWindow class
   4 // Author:      Robert Roebling
   5 // Modified by: Vadim Zeitlin (2005-10-10): wxScrolledWindow is now common
   6 // Created:     01/02/97
   7 // Copyright:   (c) Robert Roebling
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_GTK_SCROLLWIN_H_
  12 #define _WX_GTK_SCROLLWIN_H_
  13
  14 // ----------------------------------------------------------------------------
  15 // wxScrolledWindow
  16 // ----------------------------------------------------------------------------
  17
  18 class WXDLLIMPEXP_CORE wxScrollHelper : public wxScrollHelperBase
  19 {
  20 public:
  21     wxScrollHelper(wxWindow *win) : wxScrollHelperBase(win) { }
  22
  23     // implement base class pure virtuals
  24     virtual void SetScrollbars(int pixelsPerUnitX, int pixelsPerUnitY,
  25                                int noUnitsX, int noUnitsY,
  26                                int xPos = 0, int yPos = 0,
  27                                bool noRefresh = false);
  28     virtual bool IsScrollbarShown(int orient) const;
  29     virtual void AdjustScrollbars();
  30
  31 protected:
  32     virtual void DoScroll(int x, int y);
  33     virtual void DoShowScrollbars(wxScrollbarVisibility horz,
  34                                   wxScrollbarVisibility vert);
  35
  36     // this does (each) half of AdjustScrollbars() work
  37     void DoAdjustScrollbar(GtkAdjustment *adj,
  38                            int pixelsPerLine,
  39                            int winSize,
  40                            int virtSize,
  41                            int *pos,
  42                            int *lines,
  43                            int *linesPerPage);
  44
  45     // and this does the same for Scroll()
  46     void DoScrollOneDir(int orient,
  47                         GtkAdjustment *adj,
  48                         int pos,
  49                         int pixelsPerLine,
  50                         int *posOld);
  51
  52 private:
  53     wxDECLARE_NO_COPY_CLASS(wxScrollHelper);
  54 };
  55
  56 #endif // _WX_GTK_SCROLLWIN_H_
  57