/////////////////////////////////////////////////////////////////////////////
// Name: region.h
-// Purpose:
-// Author: Robert Roebling
-// Created: 01/02/97
-// Id:
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Purpose: wxRegion class
+// Author: AUTHOR
+// Modified by:
+// Created: ??/??/98
+// RCS-ID: $Id$
+// Copyright: (c) AUTHOR
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifndef __REGIONH__
-#define __REGIONH__
+#ifndef _WX_REGION_H_
+#define _WX_REGION_H_
#ifdef __GNUG__
-#pragma interface
+#pragma interface "region.h"
#endif
#include "wx/list.h"
#include "wx/gdiobj.h"
-#include "wx/gdicmn.h"
-//-----------------------------------------------------------------------------
-// classes
-//-----------------------------------------------------------------------------
+class WXDLLEXPORT wxRect;
+class WXDLLEXPORT wxPoint;
-class wxRegion;
-
-//-----------------------------------------------------------------------------
-// constants
-//-----------------------------------------------------------------------------
-
-enum wxRegionContain
-{
- wxOutRegion = 0, wxPartRegion = 1, wxInRegion = 2
+enum wxRegionContain {
+ wxOutRegion = 0, wxPartRegion = 1, wxInRegion = 2
};
// So far, for internal use only
wxRGN_XOR // Creates the union of two combined regions except for any overlapping areas.
};
-//-----------------------------------------------------------------------------
-// wxRegion
-//-----------------------------------------------------------------------------
-
-class wxRegion : public wxGDIObject
-{
- DECLARE_DYNAMIC_CLASS(wxRegion);
-
- public:
-
- wxRegion( long x, long y, long w, long h );
- wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight );
- wxRegion( const wxRect& rect );
- wxRegion(void);
- ~wxRegion(void);
-
- inline wxRegion( const wxRegion& r )
- { Ref(r); }
- inline wxRegion& operator = ( const wxRegion& r )
- { Ref(r); return (*this); }
-
- void Clear(void);
-
- bool Union( long x, long y, long width, long height );
- bool Union( const wxRect& rect );
- bool Union( const wxRegion& region );
-
- bool Intersect( long x, long y, long width, long height );
- bool Intersect( const wxRect& rect );
- bool Intersect( const wxRegion& region );
-
- bool Subtract( long x, long y, long width, long height );
- bool Subtract( const wxRect& rect );
- bool Subtract( const wxRegion& region );
-
- bool Xor( long x, long y, long width, long height );
- bool Xor( const wxRect& rect );
- bool Xor( const wxRegion& region );
-
- void GetBox( long& x, long& y, long&w, long &h ) const;
- wxRect GetBox(void) const ;
-
- bool Empty(void) const;
-
- wxRegionContain Contains( long x, long y ) const;
- wxRegionContain Contains( long x, long y, long w, long h ) const;
-
+class WXDLLEXPORT wxRegion : public wxGDIObject {
+DECLARE_DYNAMIC_CLASS(wxRegion);
+ friend class WXDLLEXPORT wxRegionIterator;
+public:
+ wxRegion(long x, long y, long w, long h);
+ wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight);
+ wxRegion(const wxRect& rect);
+
+/* TODO: implementation
+ wxRegion(WXHRGN hRegion); // Hangs on to this region
+*/
+
+ wxRegion();
+ ~wxRegion();
+
+ //# Copying
+ inline wxRegion(const wxRegion& r)
+ { Ref(r); }
+ inline wxRegion& operator = (const wxRegion& r)
+ { Ref(r); return (*this); }
+
+ //# Modify region
+ // Clear current region
+ void Clear();
+
+ // Union rectangle or region with this.
+ inline bool Union(long x, long y, long width, long height) { return Combine(x, y, width, height, wxRGN_OR); }
+ inline bool Union(const wxRect& rect) { return Combine(rect, wxRGN_OR); }
+ inline bool Union(const wxRegion& region) { return Combine(region, wxRGN_OR); }
+
+ // Intersect rectangle or region with this.
+ inline bool Intersect(long x, long y, long width, long height) { return Combine(x, y, width, height, wxRGN_AND); }
+ inline bool Intersect(const wxRect& rect) { return Combine(rect, wxRGN_AND); }
+ inline 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.
+ inline bool Subtract(long x, long y, long width, long height) { return Combine(x, y, width, height, wxRGN_DIFF); }
+ inline bool Subtract(const wxRect& rect) { return Combine(rect, wxRGN_DIFF); }
+ inline bool Subtract(const wxRegion& region) { return Combine(region, wxRGN_DIFF); }
+
+ // XOR: the union of two combined regions except for any overlapping areas.
+ inline bool Xor(long x, long y, long width, long height) { return Combine(x, y, width, height, wxRGN_XOR); }
+ inline bool Xor(const wxRect& rect) { return Combine(rect, wxRGN_XOR); }
+ inline bool Xor(const wxRegion& region) { return Combine(region, wxRGN_XOR); }
+
+ //# Information on region
+ // Outer bounds of region
+ void GetBox(long& x, long& y, long&w, long &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;
+
+// Internal
+ bool Combine(long x, long y, long width, long height, wxRegionOp op);
+ bool Combine(const wxRegion& region, wxRegionOp op);
+ bool Combine(const wxRect& rect, wxRegionOp op);
+};
+
+class WXDLLEXPORT wxRegionIterator : public wxObject {
+DECLARE_DYNAMIC_CLASS(wxRegionIterator);
+public:
+ wxRegionIterator();
+ wxRegionIterator(const wxRegion& region);
+ ~wxRegionIterator();
+
+ void Reset() { m_current = 0; }
+ void Reset(const wxRegion& region);
+
+ operator bool () const { return m_current < m_numRects; }
+ bool HaveRects() const { return m_current < m_numRects; }
+
+ void operator ++ ();
+ void operator ++ (int);
+
+ long GetX() const;
+ long GetY() const;
+ long GetW() const;
+ long GetWidth() const { return GetW(); }
+ long GetH() const;
+ long GetHeight() const { return GetH(); }
+
+private:
+ long m_current;
+ long m_numRects;
+ wxRegion m_region;
+ wxRect* m_rects;
};
#endif
- // __REGIONH__
+ // _WX_REGION_H_
projects / wxWidgets.git / blobdiff