/////////////////////////////////////////////////////////////////////////////
// Name: wx/msw/region.h
// Purpose: wxRegion class
-// Author: Markus Holzem, Julian Smart
+// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart
+// Copyright: (c) 1997-2002 wxWidgets team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_REGION_H_
#define _WX_REGION_H_
-#ifdef __GNUG__
-#pragma interface "region.h"
-#endif
-
-#include "wx/list.h"
#include "wx/gdiobj.h"
#include "wx/gdicmn.h"
wxRegion(const wxRect& rect);
wxRegion(WXHRGN hRegion); // Hangs on to this region
wxRegion(size_t n, const wxPoint *points, int 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();
- // Copying
- wxRegion(const wxRegion& r)
- { Ref(r); }
- wxRegion& operator = (const wxRegion& r)
- { Ref(r); return (*this); }
-
// Modify region
+ // -------------
+
// Clear current region
- void Clear(void);
+ void Clear();
+
+ // Move the region
+ bool Offset(wxCoord x, wxCoord y);
// Union rectangle or region with this.
- inline bool Union(wxCoord x, wxCoord y, wxCoord width, wxCoord 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); }
+ 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.
- inline bool Intersect(wxCoord x, wxCoord y, wxCoord width, wxCoord 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); }
+ 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.
- inline bool Subtract(wxCoord x, wxCoord y, wxCoord width, wxCoord 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); }
+ 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.
- inline bool Xor(wxCoord x, wxCoord y, wxCoord width, wxCoord 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); }
+ 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(void) const ;
+ wxRect GetBox() const ;
// Is region empty?
- bool Empty(void) const;
- inline bool IsEmpty(void) const { return Empty(); }
+ bool Empty() const;
+ inline bool IsEmpty() const { return Empty(); }
// Tests
// Does the region contain the point (x,y)?
// 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. First version takes transparency from bitmap's mask,
+ // second lets the user specify the colour to be treated as transparent
+ // along with an optional tolerance value.
+ // NOTE: implemented in common/rgncmn.cpp
+ bool Union(const wxBitmap& bmp);
+ bool Union(const wxBitmap& bmp,
+ const wxColour& transColour, int tolerance = 0);
+
// Internal
bool Combine(wxCoord x, wxCoord y, wxCoord width, wxCoord height, wxRegionOp op);
bool Combine(const wxRegion& region, wxRegionOp op);
// Get internal region handle
WXHRGN GetHRGN() const;
- DECLARE_DYNAMIC_CLASS(wxRegion);
+protected:
+ virtual wxObjectRefData *CreateRefData() const;
+ virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
+
friend class WXDLLEXPORT wxRegionIterator;
+
+ DECLARE_DYNAMIC_CLASS(wxRegion)
};
class WXDLLEXPORT wxRegionIterator : public wxObject
{
public:
- wxRegionIterator(void);
+ wxRegionIterator() { Init(); }
wxRegionIterator(const wxRegion& region);
- ~wxRegionIterator(void);
+ wxRegionIterator(const wxRegionIterator& ri) : wxObject(ri) { Init(); *this = ri; }
+
+ wxRegionIterator& operator=(const wxRegionIterator& ri);
- void Reset(void) { m_current = 0; }
+ virtual ~wxRegionIterator();
+
+ void Reset() { m_current = 0; }
void Reset(const wxRegion& region);
+ bool HaveRects() const { return (m_current < m_numRects); }
+
#ifndef __SALFORDC__
- operator bool (void) const { return (m_current < m_numRects); }
+ operator bool () const { return HaveRects(); }
#endif
- bool HaveRects(void) const { return (m_current < m_numRects); }
+ wxRegionIterator& operator++();
+ wxRegionIterator operator++(int);
- void operator ++ (void);
- void operator ++ (int);
+ wxCoord GetX() const;
+ wxCoord GetY() const;
+ wxCoord GetW() const;
+ wxCoord GetWidth() const { return GetW(); }
+ wxCoord GetH() const;
+ wxCoord GetHeight() const { return GetH(); }
- wxCoord GetX(void) const;
- wxCoord GetY(void) const;
- wxCoord GetW(void) const;
- wxCoord GetWidth(void) const { return GetW(); }
- wxCoord GetH(void) const;
- wxCoord GetHeight(void) const { return GetH(); }
- wxRect GetRect() const { return wxRect(GetX(), GetY(), GetWidth(), GetHeight()); }
+ wxRect GetRect() const { return wxRect(GetX(), GetY(), GetW(), GetH()); }
private:
+ // common part of all ctors
+ void Init();
+
long m_current;
long m_numRects;
wxRegion m_region;
wxRect* m_rects;
- DECLARE_DYNAMIC_CLASS(wxRegionIterator);
+ DECLARE_DYNAMIC_CLASS(wxRegionIterator)
};
#endif
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