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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/x11/region.h
	3	// Purpose: wxRegion class
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 17/09/98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart, Robert Roebling
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifndef _WX_REGION_H_
	13	#define _WX_REGION_H_
	14
	15	#include "wx/list.h"
	16
	17	// ----------------------------------------------------------------------------
	18	// wxRegion
	19	// ----------------------------------------------------------------------------
	20
	21	class WXDLLIMPEXP_CORE wxRegion : public wxRegionBase
	22	{
	23	public:
	24	wxRegion() { }
	25
	26	wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
	27	{
	28	InitRect(x, y, w, h);
	29	}
	30
	31	wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
	32	{
	33	InitRect(topLeft.x, topLeft.y,
	34	bottomRight.x - topLeft.x, bottomRight.y - topLeft.y);
	35	}
	36
	37	wxRegion( const wxRect& rect )
	38	{
	39	InitRect(rect.x, rect.y, rect.width, rect.height);
	40	}
	41
	42	wxRegion( size_t n, const wxPoint *points, int fillStyle = wxODDEVEN_RULE );
	43
	44	wxRegion( const wxBitmap& bmp)
	45	{
	46	Union(bmp);
	47	}
	48	wxRegion( const wxBitmap& bmp,
	49	const wxColour& transColour, int tolerance = 0)
	50	{
	51	Union(bmp, transColour, tolerance);
	52	}
	53
	54	virtual ~wxRegion();
	55
	56	// wxRegionBase methods
	57	virtual void Clear();
	58	virtual bool IsEmpty() const;
	59
	60	public:
	61	WXRegion *GetX11Region() const;
	62
	63	protected:
	64	// ref counting code
	65	virtual wxObjectRefData *CreateRefData() const;
	66	virtual wxObjectRefData CloneRefData(const wxObjectRefData data) const;
	67
	68	// wxRegionBase pure virtuals
	69	virtual bool DoIsEqual(const wxRegion& region) const;
	70	virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const;
	71	virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const;
	72	virtual wxRegionContain DoContainsRect(const wxRect& rect) const;
	73
	74	virtual bool DoOffset(wxCoord x, wxCoord y);
	75	virtual bool DoUnionWithRect(const wxRect& rect);
	76	virtual bool DoUnionWithRegion(const wxRegion& region);
	77	virtual bool DoIntersect(const wxRegion& region);
	78	virtual bool DoSubtract(const wxRegion& region);
	79	virtual bool DoXor(const wxRegion& region);
	80
	81	// common part of ctors for a rectangle region
	82	void InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
	83
	84	private:
	85	DECLARE_DYNAMIC_CLASS(wxRegion)
	86	};
	87
	88	// ----------------------------------------------------------------------------
	89	// wxRegionIterator: decomposes a region into rectangles
	90	// ----------------------------------------------------------------------------
	91
	92	class WXDLLIMPEXP_CORE wxRegionIterator: public wxObject
	93	{
	94	public:
	95	wxRegionIterator();
	96	wxRegionIterator(const wxRegion& region);
	97
	98	void Reset() { m_current = 0u; }
	99	void Reset(const wxRegion& region);
	100
	101	operator bool () const;
	102	bool HaveRects() const;
	103
	104	void operator ++ ();
	105	void operator ++ (int);
	106
	107	wxCoord GetX() const;
	108	wxCoord GetY() const;
	109	wxCoord GetW() const;
	110	wxCoord GetWidth() const { return GetW(); }
	111	wxCoord GetH() const;
	112	wxCoord GetHeight() const { return GetH(); }
	113	wxRect GetRect() const;
	114
	115	private:
	116	size_t m_current;
	117	wxRegion m_region;
	118
	119	private:
	120	DECLARE_DYNAMIC_CLASS(wxRegionIterator)
	121	};
	122
	123	#endif
	124	// _WX_REGION_H_