/////////////////////////////////////////////////////////////////////////////
// Name: wx/generic/scrolwin.h
-// Purpose: wxScrolledWindow class
-// Author: Julian Smart
-// Modified by:
-// Created: 01/02/97
-// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Purpose: generic wxScrollHelper
+// Author: Vadim Zeitlin
+// Created: 2008-12-24 (replacing old file with the same name)
+// Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_GENERIC_SCROLLWIN_H_
#define _WX_GENERIC_SCROLLWIN_H_
-#ifdef __GNUG__
- #pragma interface "scrolwin.h"
-#endif
-
-// ----------------------------------------------------------------------------
-// headers and constants
-// ----------------------------------------------------------------------------
-
-#include "wx/window.h"
-#include "wx/panel.h"
-
-WXDLLEXPORT_DATA(extern const wxChar*) wxPanelNameStr;
-
-// default scrolled window style
-#ifndef wxScrolledWindowStyle
-#define wxScrolledWindowStyle (wxHSCROLL | wxVSCROLL)
-#endif
-
// ----------------------------------------------------------------------------
-// wxGenericScrolledWindow
+// generic wxScrollHelper implementation
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxGenericScrolledWindow : public wxPanel
+class WXDLLIMPEXP_CORE wxScrollHelper : public wxScrollHelperBase
{
public:
- wxGenericScrolledWindow();
- wxGenericScrolledWindow(wxWindow *parent,
- wxWindowID id = -1,
- const wxPoint& pos = wxDefaultPosition,
- const wxSize& size = wxDefaultSize,
- long style = wxScrolledWindowStyle,
- const wxString& name = wxPanelNameStr)
- {
- Create(parent, id, pos, size, style, name);
- }
-
- ~wxGenericScrolledWindow();
-
- bool Create(wxWindow *parent,
- wxWindowID id,
- const wxPoint& pos = wxDefaultPosition,
- const wxSize& size = wxDefaultSize,
- long style = wxScrolledWindowStyle,
- const wxString& name = wxPanelNameStr);
-
- // Normally the wxGenericScrolledWindow will scroll itself, but in
- // some rare occasions you might want it to scroll another
- // window (e.g. a child of it in order to scroll only a portion
- // the area between the scrollbars (spreadsheet: only cell area
- // will move).
- virtual void SetTargetWindow( wxWindow *target );
- virtual wxWindow *GetTargetWindow();
-
- // Number of pixels per user unit (0 or -1 for no scrollbar)
- // Length of virtual canvas in user units
- // Length of page in user units
- virtual void SetScrollbars(int pixelsPerUnitX, int pixelsPerUnitY,
- int noUnitsX, int noUnitsY,
- int xPos = 0, int yPos = 0,
- bool noRefresh = FALSE );
-
- // Physically scroll the window
- virtual void Scroll(int x_pos, int y_pos);
-
-#if WXWIN_COMPATIBILITY
- virtual void GetScrollUnitsPerPage(int *x_page, int *y_page) const;
- virtual void CalcUnscrolledPosition(int x, int y, float *xx, float *yy) const;
-#endif
+ wxScrollHelper(wxWindow *winToScroll);
- int GetScrollPageSize(int orient) const;
- void SetScrollPageSize(int orient, int pageSize);
-
- virtual void GetScrollPixelsPerUnit(int *x_unit, int *y_unit) const;
-
- // Enable/disable Windows scrolling in either direction.
- // If TRUE, wxWindows scrolls the canvas and only a bit of
- // the canvas is invalidated; no Clear() is necessary.
- // If FALSE, the whole canvas is invalidated and a Clear() is
- // necessary. Disable for when the scroll increment is used
- // to actually scroll a non-constant distance
- virtual void EnableScrolling(bool x_scrolling, bool y_scrolling);
-
- // Get the view start
- virtual void GetViewStart(int *x, int *y) const;
- // Compatibility
- void ViewStart(int *x, int *y) const
- { GetViewStart( x, y ); }
-
- // Actual size in pixels when scrolling is taken into account
- virtual void GetVirtualSize(int *x, int *y) const;
-
- // Set the scale factor, used in PrepareDC
- void SetScale(double xs, double ys) { m_scaleX = xs; m_scaleY = ys; }
- double GetScaleX() const { return m_scaleX; }
- double GetScaleY() const { return m_scaleY; }
-
- virtual void CalcScrolledPosition(int x, int y, int *xx, int *yy) const;
- virtual void CalcUnscrolledPosition(int x, int y, int *xx, int *yy) const;
-
- // Adjust the scrollbars
- virtual void AdjustScrollbars(void);
-
- // Override this function to draw the graphic (or just process EVT_PAINT)
- virtual void OnDraw(wxDC& WXUNUSED(dc)) {};
-
- // Override this function if you don't want to have wxGenericScrolledWindow
- // automatically change the origin according to the scroll position.
- virtual void PrepareDC(wxDC& dc);
-
- // implementation from now on
- void OnScroll(wxScrollWinEvent& event);
- void OnSize(wxSizeEvent& event);
- void OnPaint(wxPaintEvent& event);
- void OnChar(wxKeyEvent& event);
-
- // Calculate scroll increment
- virtual int CalcScrollInc(wxScrollWinEvent& event);
+ // implement base class pure virtuals
+ virtual void AdjustScrollbars();
+ virtual bool IsScrollbarShown(int orient) const;
protected:
- wxWindow *m_targetWindow;
- int m_xScrollPixelsPerLine;
- int m_yScrollPixelsPerLine;
- bool m_xScrollingEnabled;
- bool m_yScrollingEnabled;
- int m_xScrollPosition;
- int m_yScrollPosition;
- int m_xScrollLines;
- int m_yScrollLines;
- int m_xScrollLinesPerPage;
- int m_yScrollLinesPerPage;
- double m_scaleX;
- double m_scaleY;
+ virtual void DoScroll(int x, int y);
+ virtual void DoShowScrollbars(wxScrollbarVisibility horz,
+ wxScrollbarVisibility vert);
private:
- DECLARE_EVENT_TABLE()
- DECLARE_ABSTRACT_CLASS(wxGenericScrolledWindow)
+ // helper of AdjustScrollbars(): does the work for the single scrollbar
+ //
+ // notice that the parameters passed by non-const references are modified
+ // by this function
+ void DoAdjustScrollbar(int orient,
+ int clientSize,
+ int virtSize,
+ int pixelsPerUnit,
+ int& scrollUnits,
+ int& scrollPosition,
+ int& scrollLinesPerPage,
+ wxScrollbarVisibility visibility);
+
+
+ wxScrollbarVisibility m_xVisibility,
+ m_yVisibility;
+
+ wxDECLARE_NO_COPY_CLASS(wxScrollHelper);
};
-#endif
- // _WX_GENERIC_SCROLLWIN_H_
+#endif // _WX_GENERIC_SCROLLWIN_H_
+
projects / wxWidgets.git / blobdiff