// Name: wx/gtk/scrolwin.h
// Purpose: wxScrolledWindow class
// Author: Robert Roebling
-// Modified by:
+// Modified by: Vadim Zeitlin (2005-10-10): wxScrolledWindow is now common
// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c) Robert Roebling
#ifndef _WX_GTK_SCROLLWIN_H_
#define _WX_GTK_SCROLLWIN_H_
-// ----------------------------------------------------------------------------
-// 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
-
// ----------------------------------------------------------------------------
// wxScrolledWindow
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxScrolledWindow : public wxPanel
+class WXDLLIMPEXP_CORE wxScrollHelper : public wxScrollHelperBase
{
+ typedef wxScrollHelperBase base_type;
public:
- wxScrolledWindow()
- { Init(); }
-
- wxScrolledWindow(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); }
-
- void Init();
-
- bool Create(wxWindow *parent,
- wxWindowID id,
- const wxPoint& pos = wxDefaultPosition,
- const wxSize& size = wxDefaultSize,
- long style = wxScrolledWindowStyle,
- const wxString& name = wxPanelNameStr);
-
- // Normally the wxScrolledWindow 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, bool pushEventHandler = FALSE );
- virtual wxWindow *GetTargetWindow() const;
+ // default ctor doesn't do anything
+ wxScrollHelper(wxWindow *win) : wxScrollHelperBase(win) { }
- // Set the scrolled area of the window.
- virtual void DoSetVirtualSize( int x, int y );
-
- // wxWindow's GetBestVirtualSize returns the actual window size,
- // whereas we want to return the virtual size
- virtual wxSize GetBestVirtualSize() const;
-
- // Return the size best suited for the current window
- // (this isn't a virtual size, this is a sensible size for the window)
- virtual wxSize DoGetBestSize() const;
-
- // Set the x, y scrolling increments.
- void SetScrollRate( int xstep, int ystep );
-
- // 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
- // Default action is to set the virtual size and alter scrollbars
- // accordingly.
+ // implement the base class methods
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);
-
- 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, wxWidgets 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);
+ int noUnitsX, int noUnitsY,
+ int xPos = 0, int yPos = 0,
+ bool noRefresh = false);
+ virtual void AdjustScrollbars();
- // Get the view start
- virtual void GetViewStart(int *x, int *y) const;
+protected:
+ virtual void DoScroll(int x, int y);
+ virtual void DoShowScrollbars(wxScrollbarVisibility horz,
+ wxScrollbarVisibility vert);
- // translate between scrolled and unscrolled coordinates
- void CalcScrolledPosition(int x, int y, int *xx, int *yy) const
- { DoCalcScrolledPosition(x, y, xx, yy); }
- wxPoint CalcScrolledPosition(const wxPoint& pt) const
+private:
+ // this does (each) half of AdjustScrollbars() work
+ void DoAdjustScrollbar(GtkRange* range,
+ int pixelsPerLine,
+ int winSize,
+ int virtSize,
+ int *pos,
+ int *lines,
+ int *linesPerPage);
+
+ void DoAdjustHScrollbar(int winSize, int virtSize)
{
- wxPoint p2;
- DoCalcScrolledPosition(pt.x, pt.y, &p2.x, &p2.y);
- return p2;
+ DoAdjustScrollbar
+ (
+ m_win->m_scrollBar[wxWindow::ScrollDir_Horz],
+ m_xScrollPixelsPerLine, winSize, virtSize,
+ &m_xScrollPosition, &m_xScrollLines, &m_xScrollLinesPerPage
+ );
}
- void CalcUnscrolledPosition(int x, int y, int *xx, int *yy) const
- { DoCalcUnscrolledPosition(x, y, xx, yy); }
- wxPoint CalcUnscrolledPosition(const wxPoint& pt) const
+ void DoAdjustVScrollbar(int winSize, int virtSize)
{
- wxPoint p2;
- DoCalcUnscrolledPosition(pt.x, pt.y, &p2.x, &p2.y);
- return p2;
+ DoAdjustScrollbar
+ (
+ m_win->m_scrollBar[wxWindow::ScrollDir_Vert],
+ m_yScrollPixelsPerLine, winSize, virtSize,
+ &m_yScrollPosition, &m_yScrollLines, &m_yScrollLinesPerPage
+ );
}
- virtual void DoCalcScrolledPosition(int x, int y, int *xx, int *yy) const;
- virtual void DoCalcUnscrolledPosition(int x, int y, int *xx, int *yy) const;
-
- // 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 wxScrolledWindow
- // automatically change the origin according to the scroll position.
- void PrepareDC(wxDC& dc) { DoPrepareDC(dc); }
-
- // lay out the window and its children
- virtual bool Layout();
-
- // Adjust the scrollbars
- virtual void AdjustScrollbars();
-
- // 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; }
-
- // implementation from now on
- void OnScroll(wxScrollWinEvent& event);
- void OnSize(wxSizeEvent& event);
- void OnPaint(wxPaintEvent& event);
- void OnChar(wxKeyEvent& event);
-
- void GtkVScroll( float value, unsigned int scroll_type );
- void GtkHScroll( float value, unsigned int scroll_type );
- void GtkVConnectEvent();
- void GtkHConnectEvent();
- void GtkVDisconnectEvent();
- void GtkHDisconnectEvent();
-
- // Calculate scroll increment
- virtual int CalcScrollInc(wxScrollWinEvent& event);
+ // and this does the same for Scroll()
+ void DoScrollOneDir(int orient,
+ int pos,
+ int pixelsPerLine,
+ int *posOld);
- // Overridden from wxWidgets due callback being static
- virtual void SetScrollPos( int orient, int pos, bool refresh = TRUE );
-
-#if WXWIN_COMPATIBILITY_2_2
- // Compatibility
- void ViewStart(int *x, int *y) const { GetViewStart( x, y ); }
-#endif // WXWIN_COMPATIBILITY_2_2
-
- virtual void DoPrepareDC(wxDC& dc);
-
-protected:
- wxWindow *m_targetWindow;
- int m_xScrollPixelsPerLine;
- int m_yScrollPixelsPerLine;
- bool m_xScrollingEnabled;
- bool m_yScrollingEnabled;
-
- // FIXME: these next four members are duplicated in the GtkAdjustment
- // members of wxWindow. Can they be safely removed from here?
-
- int m_xScrollPosition;
- int m_yScrollPosition;
- int m_xScrollLinesPerPage;
- int m_yScrollLinesPerPage;
-
- double m_scaleY,m_scaleX;
-
-private:
- DECLARE_EVENT_TABLE()
- DECLARE_DYNAMIC_CLASS(wxScrolledWindow)
+ wxDECLARE_NO_COPY_CLASS(wxScrollHelper);
};
-#endif
- // _WX_GTK_SCROLLWIN_H_
+#endif // _WX_GTK_SCROLLWIN_H_
-// vi:sts=4:sw=4:et
projects / wxWidgets.git / blobdiff