#ifndef _WX_GTK_REGION_H_
#define _WX_GTK_REGION_H_
-#ifdef __GNUG__
-#pragma interface
-#endif
-
#include "wx/list.h"
#include "wx/gdiobj.h"
#include "wx/gdicmn.h"
// classes
//-----------------------------------------------------------------------------
-class wxRegion;
+class WXDLLIMPEXP_CORE wxRegion;
//-----------------------------------------------------------------------------
// constants
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 WXDLLIMPEXP_CORE wxRegion : public wxGDIObject
{
- DECLARE_DYNAMIC_CLASS(wxRegion);
-
- public:
+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( wxCoord x, wxCoord y, wxCoord w, wxCoord h );
- wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight );
- wxRegion( const wxRect& rect );
- wxRegion();
~wxRegion();
- inline wxRegion( const wxRegion& r ): wxGDIObject()
- { Ref(r); }
- inline wxRegion& operator = ( const wxRegion& r )
- { Ref(r); return (*this); }
+ bool Ok() const { return m_refData != NULL; }
- bool operator == ( const wxRegion& region );
- bool operator != ( const wxRegion& region );
+ bool operator == ( const wxRegion& region ) const;
+ bool operator != ( const wxRegion& region ) const { 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 );
wxRegionContain Contains(const wxPoint& pt) const;
wxRegionContain Contains(const wxRect& rect) const;
- public:
+ // 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:
+ // Init with GdkRegion, set ref count to 2 so that
+ // the C++ class will not destroy the region!
+ wxRegion( GdkRegion *region );
- wxList *GetRectList() const;
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)
};
-class wxRegionIterator: public wxObject
+// ----------------------------------------------------------------------------
+// wxRegionIterator: decomposes a region into rectangles
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxRegionIterator: public wxObject
{
public:
wxRegionIterator();
void Reset() { m_current = 0u; }
void Reset(const wxRegion& region);
- operator bool () const;
bool HaveRects() const;
+ operator bool () const { return HaveRects(); }
- void operator ++ ();
- void operator ++ (int);
+ wxRegionIterator& operator ++ ();
+ wxRegionIterator operator ++ (int);
wxCoord GetX() const;
wxCoord GetY() 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;
wxRegion m_region;
private:
- DECLARE_DYNAMIC_CLASS(wxRegionIterator);
+ DECLARE_DYNAMIC_CLASS(wxRegionIterator)
};
projects / wxWidgets.git / blobdiff