8a16d7370e
1. added wxRegionBase class and derive all wxRegions from it 2. also added wxRegionWithCombine for the ports providing Combine() method (MSW, OS2 and Mac) to reduce code duplication further 3. made sure region comparison works the same way in all ports (except those not implementing it) and added IsEqual() method git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41429 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
126 lines
3.5 KiB
C++
126 lines
3.5 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/gtk/region.h
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// Purpose:
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// Author: Robert Roebling
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// Id: $Id$
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// Copyright: (c) 1998 Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GTK_REGION_H_
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#define _WX_GTK_REGION_H_
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// ----------------------------------------------------------------------------
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// wxRegion
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxRegion : public wxRegionBase
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{
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public:
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wxRegion() { }
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wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
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{
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InitRect(x, y, w, h);
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}
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wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
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{
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InitRect(topLeft.x, topLeft.y,
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bottomRight.x - topLeft.x, bottomRight.y - topLeft.y);
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}
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wxRegion( const wxRect& rect )
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{
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InitRect(rect.x, rect.y, rect.width, rect.height);
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}
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wxRegion( size_t n, const wxPoint *points, int fillStyle = wxODDEVEN_RULE );
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wxRegion( const wxBitmap& bmp)
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{
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Union(bmp);
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}
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wxRegion( const wxBitmap& bmp,
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const wxColour& transColour, int tolerance = 0)
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{
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Union(bmp, transColour, tolerance);
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}
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virtual ~wxRegion();
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// wxRegionBase methods
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virtual void Clear();
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virtual bool IsEmpty() const;
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public:
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// Init with GdkRegion, set ref count to 2 so that
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// the C++ class will not destroy the region!
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wxRegion( GdkRegion *region );
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GdkRegion *GetRegion() const;
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protected:
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// ref counting code
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virtual wxObjectRefData *CreateRefData() const;
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virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
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// wxRegionBase pure virtuals
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virtual bool DoIsEqual(const wxRegion& region) const;
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virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const;
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virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const;
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virtual wxRegionContain DoContainsRect(const wxRect& rect) const;
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virtual bool DoOffset(wxCoord x, wxCoord y);
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virtual bool DoUnionWithRect(const wxRect& rect);
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virtual bool DoUnionWithRegion(const wxRegion& region);
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virtual bool DoIntersect(const wxRegion& region);
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virtual bool DoSubtract(const wxRegion& region);
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virtual bool DoXor(const wxRegion& region);
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// common part of ctors for a rectangle region
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void InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
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private:
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DECLARE_DYNAMIC_CLASS(wxRegion)
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};
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// ----------------------------------------------------------------------------
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// wxRegionIterator: decomposes a region into rectangles
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxRegionIterator: public wxObject
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{
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public:
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wxRegionIterator();
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wxRegionIterator(const wxRegion& region);
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void Reset() { m_current = 0u; }
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void Reset(const wxRegion& region);
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bool HaveRects() const;
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operator bool () const { return HaveRects(); }
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wxRegionIterator& operator ++ ();
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wxRegionIterator operator ++ (int);
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wxCoord GetX() const;
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wxCoord GetY() const;
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wxCoord GetW() const;
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wxCoord GetWidth() const { return GetW(); }
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wxCoord GetH() const;
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wxCoord GetHeight() const { return GetH(); }
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wxRect GetRect() const;
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private:
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size_t m_current;
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wxRegion m_region;
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private:
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DECLARE_DYNAMIC_CLASS(wxRegionIterator)
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};
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#endif
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// _WX_GTK_REGION_H_
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