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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();
	59	~wxRegion();
	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();
	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() const ;
	89
	90	bool Empty() const;
	91	bool IsEmpty() const { return Empty(); }
	92
	93	wxRegionContain Contains( long x, long y ) const;
	94	wxRegionContain Contains( long x, long y, long w, long h ) const;
	95	wxRegionContain Contains(const wxPoint& pt) const;
	96	wxRegionContain Contains(const wxRect& rect) const;
	97
	98	public:
	99
	100	wxList *GetRectList() const;
	101	GdkRegion *GetRegion() const;
	102	};
	103
	104	class wxRegionIterator: public wxObject
	105	{
	106	public:
	107	wxRegionIterator();
	108	wxRegionIterator(const wxRegion& region);
	109
	110	void Reset() { m_current = 0; }
	111	void Reset(const wxRegion& region);
	112
	113	operator bool () const;
	114	bool HaveRects() const;
	115
	116	void operator ++ ();
	117	void operator ++ (int);
	118
	119	wxCoord GetX() const;
	120	wxCoord GetY() const;
	121	wxCoord GetW() const;
	122	wxCoord GetWidth() const { return GetW(); }
	123	wxCoord GetH() const;
	124	wxCoord GetHeight() const { return GetH(); }
	125	wxRect GetRect() const { return wxRect(GetX(), GetY(), GetWidth(), GetHeight()); }
	126
	127	private:
	128	long m_current;
	129	wxRegion m_region;
	130
	131	private:
	132	DECLARE_DYNAMIC_CLASS(wxRegionIterator);
	133	};
	134
	135
	136	#endif
	137	// __REGIONH__