/////////////////////////////////////////////////////////////////////////////
-// Name: region.h
+// Name: wx/gtk/region.h
// Purpose:
// Author: Robert Roebling
-// Created: 01/02/97
-// Id:
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence: wxWindows licence
+// Id: $Id$
+// Copyright: (c) 1998 Robert Roebling
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifndef __REGIONH__
-#define __REGIONH__
+#ifndef _WX_GTK_REGION_H_
+#define _WX_GTK_REGION_H_
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma interface
#endif
// constants
//-----------------------------------------------------------------------------
-enum wxRegionContain
+enum wxRegionContain
{
- wxOutRegion = 0, wxPartRegion = 1, wxInRegion = 2
+ 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.
};
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
// wxRegion
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
-class wxRegion : public wxGDIObject
+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 );
+public:
+ 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();
+
+ wxRegion( const wxRegion& region )
+ : wxGDIObject()
+ { Ref(region); }
+ wxRegion& operator = ( const wxRegion& region ) { Ref(region); return *this; }
+
+ bool Ok() const { return m_refData != NULL; }
+
+ bool operator == ( const wxRegion& region );
+ bool operator != ( const wxRegion& region ) { return !(*this == region); }
+
+ void Clear();
+
+ 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( long x, long y, long width, long height );
+ bool Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
bool Intersect( const wxRect& rect );
bool Intersect( const wxRegion& region );
- bool Subtract( long x, long y, long width, long height );
+ bool Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
bool Subtract( const wxRect& rect );
bool Subtract( const wxRegion& region );
- bool Xor( long x, long y, long width, long height );
+ bool Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord 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 ;
+ void GetBox( wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h ) const;
+ wxRect GetBox() const ;
+
+ bool Empty() const;
+ 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;
+ wxRegionContain Contains(const wxRect& rect) const;
- bool Empty(void) const;
+ // Convert the region to a B&W bitmap with the white pixels being inside
+ // the region.
+ wxBitmap ConvertToBitmap() const;
- wxRegionContain Contains( long x, long y ) const;
- wxRegionContain Contains( long x, long y, long w, long h ) const;
-
- public:
-
- GdkRegion *GetRegion(void) 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:
+ // Init with GdkRegion, set ref count to 2 so that
+ // the C++ class will not destroy the region!
+ wxRegion( GdkRegion *region );
+
+ GdkRegion *GetRegion() 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)
};
+// ----------------------------------------------------------------------------
+// wxRegionIterator: decomposes a region into rectangles
+// ----------------------------------------------------------------------------
+
+class wxRegionIterator: public wxObject
+{
+public:
+ wxRegionIterator();
+ wxRegionIterator(const wxRegion& region);
+
+ void Reset() { m_current = 0u; }
+ void Reset(const wxRegion& region);
+
+ bool HaveRects() const;
+ operator bool () const { return HaveRects(); }
+
+ wxRegionIterator& operator ++ ();
+ wxRegionIterator 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;
+
+private:
+ size_t m_current;
+ wxRegion m_region;
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxRegionIterator)
+};
+
+
#endif
- // __REGIONH__
+ // _WX_GTK_REGION_H_
projects / wxWidgets.git / blobdiff