// Modified by:
// Created: 17/09/98
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart
+// Copyright: (c) Julian Smart, Robert Roebling
// 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"
-// ----------------------------------------------------------------------------
-// A list of rectangles type used by wxRegion and wxWindow
-// ----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+// classes
+//-----------------------------------------------------------------------------
-WX_DECLARE_LIST(wxRect, wxRectList);
+class WXDLLIMPEXP_CORE wxRegion;
+//-----------------------------------------------------------------------------
+// constants
+//-----------------------------------------------------------------------------
-enum wxRegionContain {
- wxOutRegion = 0, wxPartRegion = 1, wxInRegion = 2
+enum wxRegionContain
+{
+ wxOutRegion = 0,
+ wxPartRegion = 1,
+ wxInRegion = 2
};
// So far, for internal use only
-enum wxRegionOp {
- wxRGN_AND, // Creates the intersection of the two combined regions.
- wxRGN_COPY, // Creates a copy of the region identified by hrgnSrc1.
- wxRGN_DIFF, // Combines the parts of hrgnSrc1 that are not part of hrgnSrc2.
- wxRGN_OR, // Creates the union of two combined regions.
- wxRGN_XOR // Creates the union of two combined regions except for any overlapping areas.
+enum wxRegionOp
+{
+ wxRGN_AND, // Creates the intersection of the two combined regions.
+ wxRGN_COPY, // Creates a copy of the region identified by hrgnSrc1.
+ wxRGN_DIFF, // Combines the parts of hrgnSrc1 that are not part of hrgnSrc2.
+ wxRGN_OR, // Creates the union of two combined regions.
+ wxRGN_XOR // Creates the union of two combined regions except for any overlapping areas.
};
-class WXDLLEXPORT wxRegion : public wxGDIObject {
- DECLARE_DYNAMIC_CLASS(wxRegion)
- friend class WXDLLEXPORT wxRegionIterator;
+// ----------------------------------------------------------------------------
+// wxRegion
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxRegion : public wxGDIObject
+{
public:
- wxRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
- wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight);
- wxRegion(const wxRect& rect);
- wxRegion();
+ 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, int fillStyle = wxODDEVEN_RULE );
+
+ wxRegion( const wxBitmap& bmp)
+ {
+ Union(bmp);
+ }
+ wxRegion( const wxBitmap& bmp,
+ const wxColour& transColour, int tolerance = 0)
+ {
+ Union(bmp, transColour, tolerance);
+ }
+
~wxRegion();
-
- //# Copying
- inline wxRegion(const wxRegion& r)
- { Ref(r); }
- inline wxRegion& operator = (const wxRegion& r)
- { Ref(r); return (*this); }
-
- //# Modify region
- // Clear current region
+
+ bool Ok() const { return m_refData != NULL; }
+
+ bool operator == ( const wxRegion& region ) const;
+ bool operator != ( const wxRegion& region ) const { return !(*this == region); }
+
void Clear();
-
- // 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); }
-
- // 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); }
-
- // 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); }
-
- // 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); }
-
- //# Information on region
- // Outer bounds of region
- void GetBox(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h) const;
+
+ bool Offset( wxCoord x, wxCoord y );
+
+ bool Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
+ bool Union( const wxRect& rect );
+ bool Union( const wxRegion& region );
+
+ bool Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
+ bool Intersect( const wxRect& rect );
+ bool Intersect( const wxRegion& region );
+
+ bool Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
+ bool Subtract( const wxRect& rect );
+ bool Subtract( const wxRegion& region );
+
+ bool Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
+ bool Xor( const wxRect& rect );
+ bool Xor( const wxRegion& 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(); }
- bool Ok() const { return (m_refData != NULL) ; }
-
- //# Tests
- // Does the region contain the point (x,y)?
- wxRegionContain Contains(wxCoord x, wxCoord y) const;
- // Does the region contain the point pt?
+ bool IsEmpty() const { return Empty(); }
+
+ wxRegionContain Contains( wxCoord x, wxCoord y ) const;
+ wxRegionContain Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const;
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;
-
- // Internal
- bool Combine(wxCoord x, wxCoord y, wxCoord width, wxCoord height, wxRegionOp op);
- bool Combine(const wxRegion& region, wxRegionOp op);
- bool Combine(const wxRect& rect, wxRegionOp op);
-
- // Get the internal Region handle
- WXRegion GetXRegion() const;
-
- // 'Naughty' functions that allow wxWindows to use a list of rects
- // instead of the region, in certain circumstances (e.g. when
- // making a region out of the update rectangles).
- // These are used by wxPaintDC::wxPaintDC and wxRegionIterator::Reset.
- bool UsingRects() const;
- wxRect* GetRects();
- int GetRectCount() const;
- void SetRects(const wxRectList& rectList);
- void SetRects(int count, const wxRect* rects);
+
+ // 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);
+
+
+public:
+ WXRegion *GetX11Region() const;
+
+protected:
+ // ref counting code
+ virtual wxObjectRefData *CreateRefData() const;
+ virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
+
+ // common part of ctors for a rectangle region
+ void InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxRegion)
};
-class WXDLLEXPORT wxRegionIterator : public wxObject {
- DECLARE_DYNAMIC_CLASS(wxRegionIterator)
+// ----------------------------------------------------------------------------
+// wxRegionIterator: decomposes a region into rectangles
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxRegionIterator: public wxObject
+{
public:
wxRegionIterator();
wxRegionIterator(const wxRegion& region);
- ~wxRegionIterator();
-
- void Reset() { m_current = 0; }
+
+ void Reset() { m_current = 0u; }
void Reset(const wxRegion& region);
-
- operator bool () const { return m_current < m_numRects; }
- bool HaveRects() const { return m_current < m_numRects; }
-
+
+ operator bool () const;
+ bool HaveRects() const;
+
void operator ++ ();
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(); }
- wxRect GetRect() const { return wxRect(GetX(), GetY(), GetWidth(), GetHeight()); }
-
+ wxRect GetRect() const;
+
private:
- size_t m_current;
- size_t m_numRects;
+ size_t m_current;
wxRegion m_region;
- wxRect* m_rects;
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxRegionIterator)
};
#endif
projects / wxWidgets.git / blobdiff