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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: region.h
	3	// Purpose:
	4	// Author: Robert Roebling
	5	// Id: $Id$
	6	// Copyright: (c) 1998 Robert Roebling
	7	// Licence: wxWindows licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	#ifndef __REGIONH__
	11	#define __REGIONH__
	12
	13	#ifdef __GNUG__
	14	#pragma interface
	15	#endif
	16
	17	#include "wx/list.h"
	18	#include "wx/gdiobj.h"
	19	#include "wx/gdicmn.h"
	20
	21	//-----------------------------------------------------------------------------
	22	// classes
	23	//-----------------------------------------------------------------------------
	24
	25	class wxRegion;
	26
	27	//-----------------------------------------------------------------------------
	28	// constants
	29	//-----------------------------------------------------------------------------
	30
	31	enum wxRegionContain
	32	{
	33	wxOutRegion = 0, wxPartRegion = 1, wxInRegion = 2
	34	};
	35
	36	// So far, for internal use only
	37	enum wxRegionOp {
	38	wxRGN_AND, // Creates the intersection of the two combined regions.
	39	wxRGN_COPY, // Creates a copy of the region identified by hrgnSrc1.
	40	wxRGN_DIFF, // Combines the parts of hrgnSrc1 that are not part of hrgnSrc2.
	41	wxRGN_OR, // Creates the union of two combined regions.
	42	wxRGN_XOR // Creates the union of two combined regions except for any overlapping areas.
	43	};
	44
	45	//-----------------------------------------------------------------------------
	46	// wxRegion
	47	//-----------------------------------------------------------------------------
	48
	49	class wxRegion : public wxGDIObject
	50	{
	51	DECLARE_DYNAMIC_CLASS(wxRegion);
	52
	53	public:
	54
	55	wxRegion( long x, long y, long w, long h );
	56	wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight );
	57	wxRegion( const wxRect& rect );
	58	wxRegion(void);
	59	~wxRegion(void);
	60
	61	inline wxRegion( const wxRegion& r ): wxGDIObject()
	62	{ Ref(r); }
	63	inline wxRegion& operator = ( const wxRegion& r )
	64	{ Ref(r); return (*this); }
	65
	66	bool operator == ( const wxRegion& region );
	67	bool operator != ( const wxRegion& region );
	68
	69	void Clear(void);
	70
	71	bool Union( long x, long y, long width, long height );
	72	bool Union( const wxRect& rect );
	73	bool Union( const wxRegion& region );
	74
	75	bool Intersect( long x, long y, long width, long height );
	76	bool Intersect( const wxRect& rect );
	77	bool Intersect( const wxRegion& region );
	78
	79	bool Subtract( long x, long y, long width, long height );
	80	bool Subtract( const wxRect& rect );
	81	bool Subtract( const wxRegion& region );
	82
	83	bool Xor( long x, long y, long width, long height );
	84	bool Xor( const wxRect& rect );
	85	bool Xor( const wxRegion& region );
	86
	87	void GetBox( long& x, long& y, long&w, long &h ) const;
	88	wxRect GetBox(void) const ;
	89
	90	bool Empty(void) const;
	91
	92	wxRegionContain Contains( long x, long y ) const;
	93	wxRegionContain Contains( long x, long y, long w, long h ) const;
	94	wxRegionContain Contains(const wxPoint& pt) const;
	95	wxRegionContain Contains(const wxRect& rect) const;
	96
	97	public:
	98
	99	wxList *GetRectList() const;
	100	GdkRegion *GetRegion(void) const;
	101	};
	102
	103	class wxRegionIterator: public wxObject
	104	{
	105	DECLARE_DYNAMIC_CLASS(wxRegionIterator);
	106
	107	public:
	108
	109	wxRegionIterator(void);
	110	wxRegionIterator(const wxRegion& region);
	111
	112	void Reset(void) { m_current = 0; }
	113	void Reset(const wxRegion& region);
	114
	115	operator bool (void) const;
	116	bool HaveRects(void) const;
	117
	118	void operator ++ (void);
	119	void operator ++ (int);
	120
	121	long GetX(void) const;
	122	long GetY(void) const;
	123	long GetW(void) const;
	124	long GetWidth(void) const { return GetW(); }
	125	long GetH(void) const;
	126	long GetHeight(void) const { return GetH(); }
	127	wxRect GetRect() const { return wxRect(GetX(), GetY(), GetWidth(), GetHeight()); }
	128
	129	private:
	130
	131	long m_current;
	132	wxRegion m_region;
	133	};
	134
	135
	136	#endif
	137	// __REGIONH__