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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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