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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/dfb/region.h
	3	// Purpose: wxRegion class
	4	// Author: Vaclav Slavik
	5	// Created: 2006-08-08
	6	// Copyright: (c) 2006 REA Elektronik GmbH
	7	// Licence: wxWindows licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	#ifndef _WX_DFB_REGION_H_
	11	#define _WX_DFB_REGION_H_
	12
	13	class WXDLLIMPEXP_CORE wxRegion : public wxRegionBase
	14	{
	15	public:
	16	wxRegion();
	17	wxRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
	18	wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight);
	19	wxRegion(const wxRect& rect);
	20	wxRegion(const wxBitmap& bmp)
	21	{
	22	Union(bmp);
	23	}
	24	wxRegion(const wxBitmap& bmp,
	25	const wxColour& transColour, int tolerance = 0)
	26	{
	27	Union(bmp, transColour, tolerance);
	28	}
	29
	30	virtual ~wxRegion();
	31
	32	// wxRegionBase methods
	33	virtual void Clear();
	34	virtual bool IsEmpty() const;
	35
	36	// NB: implementation detail of DirectFB, should be removed if full
	37	// (i.e. not rect-only version is implemented) so that all code that
	38	// assumes region==rect breaks
	39	wxRect AsRect() const { return GetBox(); }
	40
	41	protected:
	42	virtual wxGDIRefData *CreateGDIRefData() const;
	43	virtual wxGDIRefData CloneGDIRefData(const wxGDIRefData data) const;
	44
	45	// wxRegionBase pure virtuals
	46	virtual bool DoIsEqual(const wxRegion& region) const;
	47	virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const;
	48	virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const;
	49	virtual wxRegionContain DoContainsRect(const wxRect& rect) const;
	50
	51	virtual bool DoOffset(wxCoord x, wxCoord y);
	52	virtual bool DoUnionWithRect(const wxRect& rect);
	53	virtual bool DoUnionWithRegion(const wxRegion& region);
	54	virtual bool DoIntersect(const wxRegion& region);
	55	virtual bool DoSubtract(const wxRegion& region);
	56	virtual bool DoXor(const wxRegion& region);
	57
	58
	59	friend class WXDLLIMPEXP_FWD_CORE wxRegionIterator;
	60
	61	DECLARE_DYNAMIC_CLASS(wxRegion);
	62	};
	63
	64
	65	class WXDLLIMPEXP_CORE wxRegionIterator : public wxObject
	66	{
	67	public:
	68	wxRegionIterator() {}
	69	wxRegionIterator(const wxRegion& region) { Reset(region); }
	70
	71	void Reset() { m_rect = wxRect(); }
	72	void Reset(const wxRegion& region);
	73
	74	bool HaveRects() const { return !m_rect.IsEmpty(); }
	75	operator bool() const { return HaveRects(); }
	76
	77	wxRegionIterator& operator++();
	78	wxRegionIterator operator++(int);
	79
	80	wxCoord GetX() const { return m_rect.GetX(); }
	81	wxCoord GetY() const { return m_rect.GetY(); }
	82	wxCoord GetW() const { return m_rect.GetWidth(); }
	83	wxCoord GetWidth() const { return GetW(); }
	84	wxCoord GetH() const { return m_rect.GetHeight(); }
	85	wxCoord GetHeight() const { return GetH(); }
	86	wxRect GetRect() const { return m_rect; }
	87
	88	private:
	89	wxRect m_rect;
	90
	91	DECLARE_DYNAMIC_CLASS(wxRegionIterator);
	92	};
	93
	94	#endif // _WX_DFB_REGION_H_