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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: region.h
	3	// Purpose:
	4	// Author: Robert Roebling
	5	// Created: 01/02/97
	6	// Id:
	7	// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11	#ifndef __REGIONH__
	12	#define __REGIONH__
	13
	14	#ifdef __GNUG__
	15	#pragma interface
	16	#endif
	17
	18	#include "wx/list.h"
	19	#include "wx/gdiobj.h"
	20	#include "wx/gdicmn.h"
	21
	22	//-----------------------------------------------------------------------------
	23	// classes
	24	//-----------------------------------------------------------------------------
	25
	26	class wxRegion;
	27
	28	//-----------------------------------------------------------------------------
	29	// constants
	30	//-----------------------------------------------------------------------------
	31
	32	enum wxRegionContain
	33	{
	34	wxOutRegion = 0, wxPartRegion = 1, wxInRegion = 2
	35	};
	36
	37	// So far, for internal use only
	38	enum wxRegionOp {
	39	wxRGN_AND, // Creates the intersection of the two combined regions.
	40	wxRGN_COPY, // Creates a copy of the region identified by hrgnSrc1.
	41	wxRGN_DIFF, // Combines the parts of hrgnSrc1 that are not part of hrgnSrc2.
	42	wxRGN_OR, // Creates the union of two combined regions.
	43	wxRGN_XOR // Creates the union of two combined regions except for any overlapping areas.
	44	};
	45
	46	//-----------------------------------------------------------------------------
	47	// wxRegion
	48	//-----------------------------------------------------------------------------
	49
	50	class wxRegion : public wxGDIObject
	51	{
	52	DECLARE_DYNAMIC_CLASS(wxRegion);
	53
	54	public:
	55
	56	wxRegion( long x, long y, long w, long h );
	57	wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight );
	58	wxRegion( const wxRect& rect );
	59	wxRegion(void);
	60	~wxRegion(void);
	61
	62	inline wxRegion( const wxRegion& r )
	63	{ Ref(r); }
	64	inline wxRegion& operator = ( const wxRegion& r )
	65	{ Ref(r); return (*this); }
	66
	67	void Clear(void);
	68
	69	bool Union( long x, long y, long width, long height );
	70	bool Union( const wxRect& rect );
	71	bool Union( const wxRegion& region );
	72
	73	bool Intersect( long x, long y, long width, long height );
	74	bool Intersect( const wxRect& rect );
	75	bool Intersect( const wxRegion& region );
	76
	77	bool Subtract( long x, long y, long width, long height );
	78	bool Subtract( const wxRect& rect );
	79	bool Subtract( const wxRegion& region );
	80
	81	bool Xor( long x, long y, long width, long height );
	82	bool Xor( const wxRect& rect );
	83	bool Xor( const wxRegion& region );
	84
	85	void GetBox( long& x, long& y, long&w, long &h ) const;
	86	wxRect GetBox(void) const ;
	87
	88	bool Empty(void) const;
	89
	90	wxRegionContain Contains( long x, long y ) const;
	91	wxRegionContain Contains( long x, long y, long w, long h ) const;
	92	wxRegionContain Contains(const wxPoint& pt) const;
	93	wxRegionContain Contains(const wxRect& rect) const;
	94
	95	public:
	96
	97	wxList *GetRectList() const;
	98	GdkRegion *GetRegion(void) const;
	99	};
	100
	101	class wxRegionIterator: public wxObject
	102	{
	103	DECLARE_DYNAMIC_CLASS(wxRegionIterator);
	104
	105	public:
	106
	107	wxRegionIterator(void);
	108	wxRegionIterator(const wxRegion& region);
	109
	110	void Reset(void) { m_current = 0; }
	111	void Reset(const wxRegion& region);
	112
	113	operator bool (void) const;
	114	bool HaveRects(void) const;
	115
	116	void operator ++ (void);
	117	void operator ++ (int);
	118
	119	long GetX(void) const;
	120	long GetY(void) const;
	121	long GetW(void) const;
	122	long GetWidth(void) const { return GetW(); }
	123	long GetH(void) const;
	124	long GetHeight(void) const { return GetH(); }
	125
	126	private:
	127
	128	long m_current;
	129	wxRegion m_region;
	130	};
	131
	132
	133	#endif
	134	// __REGIONH__