4c3c384448
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26753 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
138 lines
4.3 KiB
C++
138 lines
4.3 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/generic/region.h
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// Purpose: generic wxRegion class
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// Author: David Elliott
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// Modified by:
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// Created: 2004/04/12
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// RCS-ID: $Id$
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// Copyright: (c) 2004 David Elliott
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GENERIC_REGION_H__
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#define _WX_GENERIC_REGION_H__
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#include "wx/gdiobj.h"
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#include "wx/gdicmn.h"
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class WXDLLEXPORT wxRect;
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class WXDLLEXPORT wxPoint;
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enum wxRegionContain
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{ wxOutRegion = 0
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, wxPartRegion = 1
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, wxInRegion = 2
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};
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class WXDLLEXPORT wxRegionGeneric : public wxGDIObject
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{
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// DECLARE_DYNAMIC_CLASS(wxRegionGeneric);
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friend class WXDLLEXPORT wxRegionIteratorGeneric;
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public:
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wxRegionGeneric(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
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wxRegionGeneric(const wxPoint& topLeft, const wxPoint& bottomRight);
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wxRegionGeneric(const wxRect& rect);
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wxRegionGeneric();
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~wxRegionGeneric();
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//# Copying
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wxRegionGeneric(const wxRegionGeneric& r)
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: wxGDIObject()
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{ Ref(r); }
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wxRegionGeneric& operator= (const wxRegionGeneric& r)
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{ Ref(r); return (*this); }
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bool Ok() const { return m_refData != NULL; }
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bool operator == ( const wxRegionGeneric& region );
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bool operator != ( const wxRegionGeneric& region ) { return !(*this == region); }
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//# Modify region
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// Clear current region
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void Clear();
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// Move the region
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bool Offset(wxCoord x, wxCoord y);
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// Union rectangle or region with this.
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bool Union(long x, long y, long width, long height)
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{ return Union(wxRect(x,y,width,height)); }
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bool Union(const wxRect& rect);
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bool Union(const wxRegionGeneric& region);
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// Intersect rectangle or region with this.
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bool Intersect(long x, long y, long width, long height)
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{ return Intersect(wxRect(x,y,width,height)); }
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bool Intersect(const wxRect& rect);
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bool Intersect(const wxRegionGeneric& region);
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// Subtract rectangle or region from this:
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// Combines the parts of 'this' that are not part of the second region.
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bool Subtract(long x, long y, long width, long height)
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{ return Subtract(wxRect(x,y,width,height)); }
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bool Subtract(const wxRect& rect);
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bool Subtract(const wxRegionGeneric& region);
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// XOR: the union of two combined regions except for any overlapping areas.
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bool Xor(long x, long y, long width, long height);
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bool Xor(const wxRect& rect);
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bool Xor(const wxRegionGeneric& region);
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//# Information on region
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// Outer bounds of region
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void GetBox(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h) const;
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wxRect GetBox() const;
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// Is region empty?
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bool Empty() const;
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inline bool IsEmpty() const { return Empty(); }
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//# Tests
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// Does the region contain the point (x,y)?
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wxRegionContain Contains(long x, long y) const;
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// Does the region contain the point pt?
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wxRegionContain Contains(const wxPoint& pt) const;
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// Does the region contain the rectangle (x, y, w, h)?
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wxRegionContain Contains(long x, long y, long w, long h) const;
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// Does the region contain the rectangle rect?
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wxRegionContain Contains(const wxRect& rect) const;
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protected:
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virtual wxObjectRefData *CreateRefData() const;
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virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
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};
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class WXDLLEXPORT wxRegionIteratorGeneric : public wxObject
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{
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// DECLARE_DYNAMIC_CLASS(wxRegionIteratorGeneric);
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public:
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wxRegionIteratorGeneric();
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wxRegionIteratorGeneric(const wxRegionGeneric& region);
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wxRegionIteratorGeneric(const wxRegionIteratorGeneric& iterator);
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~wxRegionIteratorGeneric();
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wxRegionIteratorGeneric& operator=(const wxRegionIteratorGeneric& iterator);
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void Reset() { m_current = 0; }
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void Reset(const wxRegionGeneric& region);
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operator bool () const { return HaveRects(); }
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bool HaveRects() const;
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wxRegionIteratorGeneric& operator++();
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wxRegionIteratorGeneric operator++(int);
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long GetX() const;
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long GetY() const;
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long GetW() const;
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long GetWidth() const { return GetW(); }
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long GetH() const;
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long GetHeight() const { return GetH(); }
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wxRect GetRect() const;
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private:
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long m_current;
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wxRegionGeneric m_region;
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};
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#endif //ndef _WX_GENERIC_REGION_H__
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