wxWidgets/include/wx/msw/region.h
Julian Smart 9b1801c19c long -> wxCoord
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5870 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2000-02-06 12:12:25 +00:00

146 lines
4.9 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: region.h
// Purpose: wxRegion class
// Author: Markus Holzem, Julian Smart
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// 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"
class WXDLLEXPORT wxRect;
class WXDLLEXPORT wxPoint;
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.
};
class WXDLLEXPORT wxRegion : public wxGDIObject {
DECLARE_DYNAMIC_CLASS(wxRegion);
friend class WXDLLEXPORT wxRegionIterator;
public:
wxRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight);
wxRegion(const wxRect& rect);
wxRegion(WXHRGN hRegion); // Hangs on to this region
wxRegion(void);
~wxRegion(void);
//# 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(void);
// 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;
wxRect GetBox(void) const ;
// Is region empty?
bool Empty(void) const;
inline bool IsEmpty(void) const { return Empty(); }
//# Tests
// Does the region contain the point (x,y)?
wxRegionContain Contains(wxCoord x, wxCoord 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(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 internal region handle
WXHRGN GetHRGN() const;
};
class WXDLLEXPORT wxRegionIterator : public wxObject {
DECLARE_DYNAMIC_CLASS(wxRegionIterator);
public:
wxRegionIterator(void);
wxRegionIterator(const wxRegion& region);
~wxRegionIterator(void);
void Reset(void) { m_current = 0; }
void Reset(const wxRegion& region);
#ifndef __SALFORDC__
operator bool (void) const { return (m_current < m_numRects); }
#endif
bool HaveRects(void) const { return (m_current < m_numRects); }
void operator ++ (void);
void operator ++ (int);
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()); }
private:
long m_current;
long m_numRects;
wxRegion m_region;
wxRect* m_rects;
};
#endif
// _WX_REGION_H_