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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/gtk1/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	#include "wx/list.h"
	14
	15	// ----------------------------------------------------------------------------
	16	// wxRegion
	17	// ----------------------------------------------------------------------------
	18
	19	class WXDLLIMPEXP_CORE wxRegion : public wxRegionBase
	20	{
	21	public:
	22	wxRegion() { }
	23
	24	wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
	25	{
	26	InitRect(x, y, w, h);
	27	}
	28
	29	wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
	30	{
	31	InitRect(topLeft.x, topLeft.y,
	32	bottomRight.x - topLeft.x, bottomRight.y - topLeft.y);
	33	}
	34
	35	wxRegion( const wxRect& rect )
	36	{
	37	InitRect(rect.x, rect.y, rect.width, rect.height);
	38	}
	39
	40	wxRegion( size_t n, const wxPoint *points, int fillStyle = wxODDEVEN_RULE );
	41
	42	wxRegion( const wxBitmap& bmp)
	43	{
	44	Union(bmp);
	45	}
	46	wxRegion( const wxBitmap& bmp,
	47	const wxColour& transColour, int tolerance = 0)
	48	{
	49	Union(bmp, transColour, tolerance);
	50	}
	51
	52	virtual ~wxRegion();
	53
	54	// wxRegionBase methods
	55	virtual void Clear();
	56	virtual bool IsEmpty() const;
	57
	58	public:
	59	// Init with GdkRegion, set ref count to 2 so that
	60	// the C++ class will not destroy the region!
	61	wxRegion( GdkRegion *region );
	62
	63	GdkRegion *GetRegion() const;
	64
	65	protected:
	66	virtual wxGDIRefData *CreateGDIRefData() const;
	67	virtual wxGDIRefData CloneGDIRefData(const wxGDIRefData data) const;
	68
	69	// wxRegionBase pure virtuals
	70	virtual bool DoIsEqual(const wxRegion& region) const;
	71	virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const;
	72	virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const;
	73	virtual wxRegionContain DoContainsRect(const wxRect& rect) const;
	74
	75	virtual bool DoOffset(wxCoord x, wxCoord y);
	76	virtual bool DoUnionWithRect(const wxRect& rect);
	77	virtual bool DoUnionWithRegion(const wxRegion& region);
	78	virtual bool DoIntersect(const wxRegion& region);
	79	virtual bool DoSubtract(const wxRegion& region);
	80	virtual bool DoXor(const wxRegion& region);
	81
	82	// common part of ctors for a rectangle region
	83	void InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
	84
	85	private:
	86	DECLARE_DYNAMIC_CLASS(wxRegion)
	87	};
	88
	89	// ----------------------------------------------------------------------------
	90	// wxRegionIterator: decomposes a region into rectangles
	91	// ----------------------------------------------------------------------------
	92
	93	class WXDLLIMPEXP_CORE wxRegionIterator: public wxObject
	94	{
	95	public:
	96	wxRegionIterator();
	97	wxRegionIterator(const wxRegion& region);
	98
	99	void Reset() { m_current = 0u; }
	100	void Reset(const wxRegion& region);
	101
	102	bool HaveRects() const;
	103	operator bool () const { return HaveRects(); }
	104
	105	wxRegionIterator& operator ++ ();
	106	wxRegionIterator operator ++ (int);
	107
	108	wxCoord GetX() const;
	109	wxCoord GetY() const;
	110	wxCoord GetW() const;
	111	wxCoord GetWidth() const { return GetW(); }
	112	wxCoord GetH() const;
	113	wxCoord GetHeight() const { return GetH(); }
	114	wxRect GetRect() const;
	115
	116	private:
	117	size_t m_current;
	118	wxRegion m_region;
	119
	120	private:
	121	DECLARE_DYNAMIC_CLASS(wxRegionIterator)
	122	};
	123
	124
	125	#endif
	126	// _WX_GTK_REGION_H_