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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/gtk/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 _WX_GTK_REGION_H_
	11	#define _WX_GTK_REGION_H_
	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,
	34	wxPartRegion = 1,
	35	wxInRegion = 2
	36	};
	37
	38	// So far, for internal use only
	39	enum wxRegionOp
	40	{
	41	wxRGN_AND, // Creates the intersection of the two combined regions.
	42	wxRGN_COPY, // Creates a copy of the region identified by hrgnSrc1.
	43	wxRGN_DIFF, // Combines the parts of hrgnSrc1 that are not part of hrgnSrc2.
	44	wxRGN_OR, // Creates the union of two combined regions.
	45	wxRGN_XOR // Creates the union of two combined regions except for any overlapping areas.
	46	};
	47
	48	//-----------------------------------------------------------------------------
	49	// wxRegion
	50	//-----------------------------------------------------------------------------
	51
	52	class wxRegion : public wxGDIObject
	53	{
	54	public:
	55	wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord 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( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
	72	bool Union( const wxRect& rect );
	73	bool Union( const wxRegion& region );
	74
	75	bool Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
	76	bool Intersect( const wxRect& rect );
	77	bool Intersect( const wxRegion& region );
	78
	79	bool Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
	80	bool Subtract( const wxRect& rect );
	81	bool Subtract( const wxRegion& region );
	82
	83	bool Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
	84	bool Xor( const wxRect& rect );
	85	bool Xor( const wxRegion& region );
	86
	87	void GetBox( wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h ) const;
	88	wxRect GetBox() const ;
	89
	90	bool Empty() const;
	91	bool IsEmpty() const { return Empty(); }
	92
	93	wxRegionContain Contains( wxCoord x, wxCoord y ) const;
	94	wxRegionContain Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const;
	95	wxRegionContain Contains(const wxPoint& pt) const;
	96	wxRegionContain Contains(const wxRect& rect) const;
	97
	98	public:
	99	wxList *GetRectList() const;
	100	GdkRegion *GetRegion() const;
	101
	102	private:
	103	DECLARE_DYNAMIC_CLASS(wxRegion);
	104	};
	105
	106	class wxRegionIterator: public wxObject
	107	{
	108	public:
	109	wxRegionIterator();
	110	wxRegionIterator(const wxRegion& region);
	111
	112	void Reset() { m_current = 0u; }
	113	void Reset(const wxRegion& region);
	114
	115	operator bool () const;
	116	bool HaveRects() const;
	117
	118	void operator ++ ();
	119	void operator ++ (int);
	120
	121	wxCoord GetX() const;
	122	wxCoord GetY() const;
	123	wxCoord GetW() const;
	124	wxCoord GetWidth() const { return GetW(); }
	125	wxCoord GetH() const;
	126	wxCoord GetHeight() const { return GetH(); }
	127	wxRect GetRect() const { return wxRect(GetX(), GetY(), GetWidth(), GetHeight()); }
	128
	129	private:
	130	size_t m_current;
	131	wxRegion m_region;
	132
	133	private:
	134	DECLARE_DYNAMIC_CLASS(wxRegionIterator);
	135	};
	136
	137
	138	#endif
	139	// _WX_GTK_REGION_H_