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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [tools/] [src/] [tools/] [configtool/] [standalone/] [wxwin/] [ecscrolwin.h] - Rev 174

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/////////////////////////////////////////////////////////////////////////////
// Name:        ecscrolwin.h
// Purpose:     ecScrolledWindow class
//              Used here to avoid any harmful changes in the equivalent wxWindows class
// Author:      Julian Smart
// Modified by:
// Created:     01/02/97
// RCS-ID:      $Id: ecscrolwin.h,v 1.1.1.1 2004-02-14 13:28:53 phoenix Exp $
// Copyright:   (c) Julian Smart and Markus Holzem
// Licence:     wxWindows license
/////////////////////////////////////////////////////////////////////////////
 
#ifndef _EC_SCROLLWIN_H_
#define _EC_SCROLLWIN_H_
 
#ifdef __GNUG__
    #pragma interface "ecscrolwin.h"
#endif
 
// ----------------------------------------------------------------------------
// headers and constants
// ----------------------------------------------------------------------------
 
#include "wx/window.h"
#include "wx/panel.h"
 
// 1 to use our own scroled window to insulate us from
// wxWindows changes
 
#if wxRELEASE_NUMBER < 2302
#define ecUSE_OWN_SCROLLED_WINDOW 1
#else
#define ecUSE_OWN_SCROLLED_WINDOW 0
#endif
 
#if !ecUSE_OWN_SCROLLED_WINDOW
#include "wx/scrolwin.h"
#endif
 
WXDLLEXPORT_DATA(extern const wxChar*) wxPanelNameStr;
 
// default scrolled window style
#ifndef wxScrolledWindowStyle
#define wxScrolledWindowStyle (wxHSCROLL | wxVSCROLL)
#endif
 
// ----------------------------------------------------------------------------
// ecScrolledWindow
// ----------------------------------------------------------------------------
 
#if ecUSE_OWN_SCROLLED_WINDOW
 
class ecScrolledWindow : public wxPanel
{
public:
    ecScrolledWindow();
    ecScrolledWindow(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);
    }
 
    ~ecScrolledWindow();
 
    bool Create(wxWindow *parent,
                wxWindowID id,
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = wxScrolledWindowStyle,
                const wxString& name = wxPanelNameStr);
 
    // Normally the ecScrolledWindow 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
 
    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 ecScrolledWindow
    // 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);
 
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;
 
private:
    DECLARE_EVENT_TABLE()
    DECLARE_ABSTRACT_CLASS(ecScrolledWindow)
	};
 
#else
class ecScrolledWindow : public wxScrolledWindow
{
public:
    ecScrolledWindow(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);
    }
    DECLARE_CLASS(ecScrolledWindow)
};
 
#endif
 
#endif
    // _EC_SCROLLWIN_H_
 

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