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/////////////////////////////////////////////////////////////////////////////
// Name: wx/gtk1/region.h
// Purpose:
// Author: Robert Roebling
// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_GTK_REGION_H_
#define _WX_GTK_REGION_H_
#include "wx/list.h"
// ----------------------------------------------------------------------------
// wxRegion
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxRegion : public wxRegionBase
{
public:
wxRegion() { }
wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
{
InitRect(x, y, w, h);
}
wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
{
InitRect(topLeft.x, topLeft.y,
bottomRight.x - topLeft.x, bottomRight.y - topLeft.y);
}
wxRegion( const wxRect& rect )
{
InitRect(rect.x, rect.y, rect.width, rect.height);
}
wxRegion( size_t n, const wxPoint *points, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
wxRegion( const wxBitmap& bmp)
{
Union(bmp);
}
wxRegion( const wxBitmap& bmp,
const wxColour& transColour, int tolerance = 0)
{
Union(bmp, transColour, tolerance);
}
virtual ~wxRegion();
// wxRegionBase methods
virtual void Clear();
virtual bool IsEmpty() const;
public:
// Init with GdkRegion, set ref count to 2 so that
// the C++ class will not destroy the region!
wxRegion( GdkRegion *region );
GdkRegion *GetRegion() const;
protected:
virtual wxGDIRefData *CreateGDIRefData() const;
virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *data) const;
// wxRegionBase pure virtuals
virtual bool DoIsEqual(const wxRegion& region) const;
virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const;
virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const;
virtual wxRegionContain DoContainsRect(const wxRect& rect) const;
virtual bool DoOffset(wxCoord x, wxCoord y);
virtual bool DoUnionWithRect(const wxRect& rect);
virtual bool DoUnionWithRegion(const wxRegion& region);
virtual bool DoIntersect(const wxRegion& region);
virtual bool DoSubtract(const wxRegion& region);
virtual bool DoXor(const wxRegion& region);
// common part of ctors for a rectangle region
void InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
private:
DECLARE_DYNAMIC_CLASS(wxRegion)
};
// ----------------------------------------------------------------------------
// wxRegionIterator: decomposes a region into rectangles
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxRegionIterator: public wxObject
{
public:
wxRegionIterator();
wxRegionIterator(const wxRegion& region);
void Reset() { m_current = 0u; }
void Reset(const wxRegion& region);
bool HaveRects() const;
operator bool () const { return HaveRects(); }
wxRegionIterator& operator ++ ();
wxRegionIterator operator ++ (int);
wxCoord GetX() const;
wxCoord GetY() const;
wxCoord GetW() const;
wxCoord GetWidth() const { return GetW(); }
wxCoord GetH() const;
wxCoord GetHeight() const { return GetH(); }
wxRect GetRect() const;
private:
size_t m_current;
wxRegion m_region;
private:
DECLARE_DYNAMIC_CLASS(wxRegionIterator)
};
#endif
// _WX_GTK_REGION_H_
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