Added wxRegionGeneric and wxRegionIteratorGeneric using X.org code

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26753 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/region.h

@@ -0,0 +1,137 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/generic/region.h
+// Purpose:     generic wxRegion class
+// Author:      David Elliott
+// Modified by:
+// Created:     2004/04/12
+// RCS-ID:      $Id$
+// Copyright:   (c) 2004 David Elliott
+// Licence:   	wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_GENERIC_REGION_H__
+#define _WX_GENERIC_REGION_H__
+
+#include "wx/gdiobj.h"
+#include "wx/gdicmn.h"
+
+class WXDLLEXPORT wxRect;
+class WXDLLEXPORT wxPoint;
+
+enum wxRegionContain
+{   wxOutRegion = 0
+,   wxPartRegion = 1
+,   wxInRegion = 2
+};
+
+class WXDLLEXPORT wxRegionGeneric : public wxGDIObject
+{
+//    DECLARE_DYNAMIC_CLASS(wxRegionGeneric);
+    friend class WXDLLEXPORT wxRegionIteratorGeneric;
+public:
+    wxRegionGeneric(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
+    wxRegionGeneric(const wxPoint& topLeft, const wxPoint& bottomRight);
+    wxRegionGeneric(const wxRect& rect);
+    wxRegionGeneric();
+    ~wxRegionGeneric();
+
+    //# Copying
+    wxRegionGeneric(const wxRegionGeneric& r)
+    :   wxGDIObject()
+    {   Ref(r); }
+    wxRegionGeneric& operator= (const wxRegionGeneric& r)
+    {   Ref(r); return (*this); }
+
+    bool Ok() const { return m_refData != NULL; }
+
+    bool operator == ( const wxRegionGeneric& region );
+    bool operator != ( const wxRegionGeneric& region ) { return !(*this == region); }
+
+    //# Modify region
+    // Clear current region
+    void Clear();
+
+    // Move the region
+    bool Offset(wxCoord x, wxCoord y);
+
+    // Union rectangle or region with this.
+    bool Union(long x, long y, long width, long height)
+    {   return Union(wxRect(x,y,width,height)); }
+    bool Union(const wxRect& rect);
+    bool Union(const wxRegionGeneric& region);
+
+    // Intersect rectangle or region with this.
+    bool Intersect(long x, long y, long width, long height)
+    {   return Intersect(wxRect(x,y,width,height)); }
+    bool Intersect(const wxRect& rect);
+    bool Intersect(const wxRegionGeneric& region);
+
+    // Subtract rectangle or region from this:
+    // Combines the parts of 'this' that are not part of the second region.
+    bool Subtract(long x, long y, long width, long height)
+    {   return Subtract(wxRect(x,y,width,height)); }
+    bool Subtract(const wxRect& rect);
+    bool Subtract(const wxRegionGeneric& region);
+
+    // XOR: the union of two combined regions except for any overlapping areas.
+    bool Xor(long x, long y, long width, long height);
+    bool Xor(const wxRect& rect);
+    bool Xor(const wxRegionGeneric& region);
+
+    //# 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(long x, long 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(long x, long y, long w, long h) const;
+    // Does the region contain the rectangle rect?
+    wxRegionContain Contains(const wxRect& rect) const;
+
+protected:
+    virtual wxObjectRefData *CreateRefData() const;
+    virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
+};
+
+class WXDLLEXPORT wxRegionIteratorGeneric : public wxObject
+{
+//    DECLARE_DYNAMIC_CLASS(wxRegionIteratorGeneric);
+public:
+    wxRegionIteratorGeneric();
+    wxRegionIteratorGeneric(const wxRegionGeneric& region);
+    wxRegionIteratorGeneric(const wxRegionIteratorGeneric& iterator);
+    ~wxRegionIteratorGeneric();
+
+    wxRegionIteratorGeneric& operator=(const wxRegionIteratorGeneric& iterator);
+
+    void Reset() { m_current = 0; }
+    void Reset(const wxRegionGeneric& region);
+
+    operator bool () const { return HaveRects(); }
+    bool HaveRects() const;
+
+    wxRegionIteratorGeneric& operator++();
+    wxRegionIteratorGeneric operator++(int);
+
+    long GetX() const;
+    long GetY() const;
+    long GetW() const;
+    long GetWidth() const { return GetW(); }
+    long GetH() const;
+    long GetHeight() const { return GetH(); }
+    wxRect GetRect() const;
+private:
+    long     m_current;
+    wxRegionGeneric m_region;
+};
+
+#endif //ndef _WX_GENERIC_REGION_H__