+ wxRegion(size_t n, const wxPoint *points, int fillStyle = wxODDEVEN_RULE );
+ wxRegion( const wxBitmap& bmp,
+ const wxColour& transColour = wxNullColour,
+ int tolerance = 0)
+ {
+ Union(bmp, transColour, tolerance);
+ }
+
+ virtual ~wxRegion();
+
+ // Copying
+ wxRegion(const wxRegion& r)
+ { Ref(r); }
+ wxRegion& operator = (const wxRegion& r)
+ { Ref(r); return (*this); }
+
+ // Modify region
+ // -------------
+
+ // Clear current region
+ void Clear();
+
+ // Move the region
+ bool Offset(wxCoord x, wxCoord y);
+
+ // Union rectangle or region with this.
+ bool Union(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { return Combine(x, y, width, height, wxRGN_OR); }
+ bool Union(const wxRect& rect) { return Combine(rect, wxRGN_OR); }
+ bool Union(const wxRegion& region) { return Combine(region, wxRGN_OR); }
+
+ // Intersect rectangle or region with this.
+ bool Intersect(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { return Combine(x, y, width, height, wxRGN_AND); }
+ bool Intersect(const wxRect& rect) { return Combine(rect, wxRGN_AND); }
+ bool Intersect(const wxRegion& region) { return Combine(region, wxRGN_AND); }
+
+ // Subtract rectangle or region from this:
+ // Combines the parts of 'this' that are not part of the second region.
+ bool Subtract(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { return Combine(x, y, width, height, wxRGN_DIFF); }
+ bool Subtract(const wxRect& rect) { return Combine(rect, wxRGN_DIFF); }
+ bool Subtract(const wxRegion& region) { return Combine(region, wxRGN_DIFF); }
+
+ // XOR: the union of two combined regions except for any overlapping areas.
+ bool Xor(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { return Combine(x, y, width, height, wxRGN_XOR); }
+ bool Xor(const wxRect& rect) { return Combine(rect, wxRGN_XOR); }
+ bool Xor(const wxRegion& region) { return Combine(region, wxRGN_XOR); }
+
+ // Information on region
+ // ---------------------
+
+ // Outer bounds of region
+ void GetBox(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h) const;
+ wxRect GetBox() const ;
+
+ // Is region empty?
+ bool Empty() const;
+ inline bool IsEmpty() const { return Empty(); }
+
+ // Tests
+ // Does the region contain the point (x,y)?
+ wxRegionContain Contains(wxCoord x, wxCoord y) const;
+ // Does the region contain the point pt?
+ wxRegionContain Contains(const wxPoint& pt) const;
+ // Does the region contain the rectangle (x, y, w, h)?
+ wxRegionContain Contains(wxCoord x, wxCoord y, wxCoord w, wxCoord h) const;
+ // Does the region contain the rectangle rect?
+ wxRegionContain Contains(const wxRect& rect) const;
+
+ // Convert the region to a B&W bitmap with the white pixels being inside
+ // the region.
+ wxBitmap ConvertToBitmap() const;
+
+ // Use the non-transparent pixels of a wxBitmap for the region to combine
+ // with this region. If the bitmap has a mask then it will be used,
+ // otherwise the colour to be treated as transparent may be specified,
+ // along with an optional tolerance value.
+ bool Union(const wxBitmap& bmp,
+ const wxColour& transColour = wxNullColour,
+ int tolerance = 0);