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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: scrolwin.h
	3	// Purpose: wxScrolledWindow class
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 01/02/97
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart and Markus Holzem
	9	// Licence: wxWindows license
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifndef __SCROLWINH_G__
	13	#define __SCROLWINH_G__
	14
	15	#ifdef __GNUG__
	16	#pragma interface "scrolwin.h"
	17	#endif
	18
	19	#include "wx/window.h"
	20
	21	WXDLLEXPORT_DATA(extern const wxChar*) wxPanelNameStr;
	22
	23	class WXDLLEXPORT wxScrolledWindow: public wxWindow
	24	{
	25	DECLARE_ABSTRACT_CLASS(wxScrolledWindow)
	26
	27	public:
	28	wxScrolledWindow(void);
	29	inline wxScrolledWindow(wxWindow *parent, wxWindowID id = -1,
	30	const wxPoint& pos = wxDefaultPosition,
	31	const wxSize& size = wxDefaultSize,
	32	long style = wxHSCROLL\|wxVSCROLL,
	33	const wxString& name = wxPanelNameStr)
	34	{
	35	Create(parent, id, pos, size, style, name);
	36	}
	37
	38	inline ~wxScrolledWindow(void) {}
	39
	40	bool Create(wxWindow *parent, wxWindowID id,
	41	const wxPoint& pos = wxDefaultPosition,
	42	const wxSize& size = wxDefaultSize,
	43	long style = wxHSCROLL\|wxVSCROLL,
	44	const wxString& name = wxPanelNameStr);
	45
	46	// Set client size
	47	// Should take account of scrollbars
	48	// virtual void SetClientSize(int width, int size);
	49
	50	// Is the window retained?
	51	// inline bool IsRetained(void) const;
	52
	53	// Number of pixels per user unit (0 or -1 for no scrollbar)
	54	// Length of virtual canvas in user units
	55	// Length of page in user units
	56	virtual void SetScrollbars(int pixelsPerUnitX, int pixelsPerUnitY,
	57	int noUnitsX, int noUnitsY,
	58	int xPos = 0, int yPos = 0,
	59	bool noRefresh = FALSE );
	60
	61	// Physically scroll the window
	62	virtual void Scroll(int x_pos, int y_pos);
	63
	64	#if WXWIN_COMPATIBILITY
	65	virtual void GetScrollUnitsPerPage(int x_page, int y_page) const;
	66	#endif
	67
	68	int GetScrollPageSize(int orient) const ;
	69	void SetScrollPageSize(int orient, int pageSize);
	70
	71	virtual void GetScrollPixelsPerUnit(int x_unit, int y_unit) const;
	72	// Enable/disable Windows scrolling in either direction.
	73	// If TRUE, wxWindows scrolls the canvas and only a bit of
	74	// the canvas is invalidated; no Clear() is necessary.
	75	// If FALSE, the whole canvas is invalidated and a Clear() is
	76	// necessary. Disable for when the scroll increment is used
	77	// to actually scroll a non-constant distance
	78	virtual void EnableScrolling(bool x_scrolling, bool y_scrolling);
	79
	80	// Get the view start
	81	virtual void ViewStart(int x, int y) const;
	82
	83	// Actual size in pixels when scrolling is taken into account
	84	virtual void GetVirtualSize(int x, int y) const;
	85
	86	// Set the scale factor, used in PrepareDC
	87	inline void SetScale(double xs, double ys) { m_scaleX = xs; m_scaleY = ys; }
	88	inline double GetScaleX() const { return m_scaleX; }
	89	inline double GetScaleY() const { return m_scaleY; }
	90
	91	virtual void CalcScrolledPosition(int x, int y, int xx, int yy) const ;
	92	virtual void CalcUnscrolledPosition(int x, int y, float xx, float yy) const ;
	93
	94	// Adjust the scrollbars
	95	virtual void AdjustScrollbars(void);
	96
	97	void OnScroll(wxScrollEvent& event);
	98	void OnSize(wxSizeEvent& event);
	99	void OnPaint(wxPaintEvent& event);
	100
	101	// Override this function to draw the graphic.
	102	virtual void OnDraw(wxDC& WXUNUSED(dc)) {};
	103
	104	// Override this function if you don't want to have wxScrolledWindow
	105	// automatically change the origin according to the scroll position.
	106	virtual void PrepareDC(wxDC& dc);
	107
	108	public:
	109	////////////////////////////////////////////////////////////////////////
	110	//// IMPLEMENTATION
	111
	112	// Calculate scroll increment
	113	virtual int CalcScrollInc(wxScrollEvent& event);
	114
	115	////////////////////////////////////////////////////////////////////////
	116	//// PROTECTED DATA
	117	protected:
	118	int m_xScrollPixelsPerLine;
	119	int m_yScrollPixelsPerLine;
	120	bool m_xScrollingEnabled;
	121	bool m_yScrollingEnabled;
	122	int m_xScrollPosition;
	123	int m_yScrollPosition;
	124	int m_xScrollLines;
	125	int m_yScrollLines;
	126	int m_xScrollLinesPerPage;
	127	int m_yScrollLinesPerPage;
	128	double m_scaleX;
	129	double m_scaleY;
	130
	131	DECLARE_EVENT_TABLE()
	132	};
	133
	134	////////////////////////////////////////////////////////////////////////
	135	//// INLINES
	136
	137	#endif
	138	// __SCROLWINH_G__