c16b9bfe69
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41901 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
301 lines
9.4 KiB
C++
301 lines
9.4 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/region.h
|
|
// Purpose: Base header for wxRegion
|
|
// Author: Julian Smart
|
|
// Modified by:
|
|
// Created:
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) Julian Smart
|
|
// Licence: wxWindows Licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_REGION_H_BASE_
|
|
#define _WX_REGION_H_BASE_
|
|
|
|
#include "wx/gdiobj.h"
|
|
#include "wx/gdicmn.h"
|
|
|
|
class WXDLLIMPEXP_CORE wxBitmap;
|
|
class WXDLLEXPORT wxColour;
|
|
class WXDLLEXPORT wxRegion;
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// constants
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// result of wxRegion::Contains() call
|
|
enum wxRegionContain
|
|
{
|
|
wxOutRegion = 0,
|
|
wxPartRegion = 1,
|
|
wxInRegion = 2
|
|
};
|
|
|
|
// these constants are used with wxRegion::Combine() in the ports which have
|
|
// this method
|
|
enum wxRegionOp
|
|
{
|
|
// Creates the intersection of the two combined regions.
|
|
wxRGN_AND,
|
|
|
|
// Creates a copy of the region
|
|
wxRGN_COPY,
|
|
|
|
// Combines the parts of first region that are not in the second one
|
|
wxRGN_DIFF,
|
|
|
|
// Creates the union of two combined regions.
|
|
wxRGN_OR,
|
|
|
|
// Creates the union of two regions except for any overlapping areas.
|
|
wxRGN_XOR
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegionBase defines wxRegion API
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxRegionBase : public wxGDIObject
|
|
{
|
|
public:
|
|
// ctors
|
|
// -----
|
|
|
|
// none are defined here but the following should be available:
|
|
#if 0
|
|
wxRegion();
|
|
wxRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
|
|
wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight);
|
|
wxRegion(const wxRect& rect);
|
|
wxRegion(size_t n, const wxPoint *points, int fillStyle = wxODDEVEN_RULE);
|
|
wxRegion(const wxBitmap& bmp);
|
|
wxRegion(const wxBitmap& bmp, const wxColour& transp, int tolerance = 0);
|
|
#endif // 0
|
|
|
|
// operators
|
|
// ---------
|
|
|
|
bool operator==(const wxRegion& region) const { return IsEqual(region); }
|
|
bool operator!=(const wxRegion& region) const { return !(*this == region); }
|
|
|
|
|
|
// accessors
|
|
// ---------
|
|
|
|
bool Ok() const { return IsOk(); }
|
|
bool IsOk() const { return m_refData != NULL; }
|
|
|
|
// Is region empty?
|
|
virtual bool IsEmpty() const = 0;
|
|
bool Empty() const { return IsEmpty(); }
|
|
|
|
// Is region equal (i.e. covers the same area as another one)?
|
|
bool IsEqual(const wxRegion& region) const;
|
|
|
|
// Get the bounding box
|
|
bool GetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const
|
|
{ return DoGetBox(x, y, w, h); }
|
|
wxRect GetBox() const
|
|
{
|
|
wxCoord x, y, w, h;
|
|
return DoGetBox(x, y, w, h) ? wxRect(x, y, w, h) : wxRect();
|
|
}
|
|
|
|
// Test if the given point or rectangle is inside this region
|
|
wxRegionContain Contains(wxCoord x, wxCoord y) const
|
|
{ return DoContainsPoint(x, y); }
|
|
wxRegionContain Contains(const wxPoint& pt) const
|
|
{ return DoContainsPoint(pt.x, pt.y); }
|
|
wxRegionContain Contains(wxCoord x, wxCoord y, wxCoord w, wxCoord h) const
|
|
{ return DoContainsRect(wxRect(x, y, w, h)); }
|
|
wxRegionContain Contains(const wxRect& rect) const
|
|
{ return DoContainsRect(rect); }
|
|
|
|
|
|
// operations
|
|
// ----------
|
|
|
|
virtual void Clear() = 0;
|
|
|
|
// Move the region
|
|
bool Offset(wxCoord x, wxCoord y)
|
|
{ return DoOffset(x, y); }
|
|
bool Offset(const wxPoint& pt)
|
|
{ return DoOffset(pt.x, pt.y); }
|
|
|
|
// Union rectangle or region with this region.
|
|
bool Union(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
|
|
{ return DoUnionWithRect(wxRect(x, y, w, h)); }
|
|
bool Union(const wxRect& rect)
|
|
{ return DoUnionWithRect(rect); }
|
|
bool Union(const wxRegion& region)
|
|
{ return DoUnionWithRegion(region); }
|
|
|
|
#if wxUSE_IMAGE
|
|
// 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& transp, int tolerance = 0);
|
|
#endif // wxUSE_IMAGE
|
|
|
|
// Intersect rectangle or region with this one.
|
|
bool Intersect(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
|
|
bool Intersect(const wxRect& rect);
|
|
bool Intersect(const wxRegion& region)
|
|
{ return DoIntersect(region); }
|
|
|
|
// Subtract rectangle or region from this:
|
|
// Combines the parts of 'this' that are not part of the second region.
|
|
bool Subtract(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
|
|
bool Subtract(const wxRect& rect);
|
|
bool Subtract(const wxRegion& region)
|
|
{ return DoSubtract(region); }
|
|
|
|
// XOR: the union of two combined regions except for any overlapping areas.
|
|
bool Xor(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
|
|
bool Xor(const wxRect& rect);
|
|
bool Xor(const wxRegion& region)
|
|
{ return DoXor(region); }
|
|
|
|
|
|
// Convert the region to a B&W bitmap with the white pixels being inside
|
|
// the region.
|
|
wxBitmap ConvertToBitmap() const;
|
|
|
|
protected:
|
|
virtual bool DoIsEqual(const wxRegion& region) const = 0;
|
|
virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const = 0;
|
|
virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const = 0;
|
|
virtual wxRegionContain DoContainsRect(const wxRect& rect) const = 0;
|
|
|
|
virtual bool DoOffset(wxCoord x, wxCoord y) = 0;
|
|
|
|
virtual bool DoUnionWithRect(const wxRect& rect) = 0;
|
|
virtual bool DoUnionWithRegion(const wxRegion& region) = 0;
|
|
|
|
virtual bool DoIntersect(const wxRegion& region) = 0;
|
|
virtual bool DoSubtract(const wxRegion& region) = 0;
|
|
virtual bool DoXor(const wxRegion& region) = 0;
|
|
};
|
|
|
|
// some ports implement a generic Combine() function while others only
|
|
// implement individual wxRegion operations, factor out the common code for the
|
|
// ports with Combine() in this class
|
|
#if defined(__WXPALMOS__) || \
|
|
defined(__WXMSW__) || \
|
|
defined(__WXMAC__) || \
|
|
defined(__WXPM__)
|
|
|
|
#define wxHAS_REGION_COMBINE
|
|
|
|
class WXDLLEXPORT wxRegionWithCombine : public wxRegionBase
|
|
{
|
|
public:
|
|
// these methods are not part of public API as they're not implemented on
|
|
// all ports
|
|
bool Combine(wxCoord x, wxCoord y, wxCoord w, wxCoord h, wxRegionOp op);
|
|
bool Combine(const wxRect& rect, wxRegionOp op);
|
|
bool Combine(const wxRegion& region, wxRegionOp op)
|
|
{ return DoCombine(region, op); }
|
|
|
|
|
|
protected:
|
|
// the real Combine() method, to be defined in the derived class
|
|
virtual bool DoCombine(const wxRegion& region, wxRegionOp op) = 0;
|
|
|
|
// implement some wxRegionBase pure virtuals in terms of Combine()
|
|
virtual bool DoUnionWithRect(const wxRect& rect);
|
|
virtual bool DoUnionWithRegion(const wxRegion& region);
|
|
virtual bool DoIntersect(const wxRegion& region);
|
|
virtual bool DoSubtract(const wxRegion& region);
|
|
virtual bool DoXor(const wxRegion& region);
|
|
};
|
|
|
|
#endif // ports with wxRegion::Combine()
|
|
|
|
#if defined(__WXPALMOS__)
|
|
#include "wx/palmos/region.h"
|
|
#elif defined(__WXMSW__)
|
|
#include "wx/msw/region.h"
|
|
#elif defined(__WXGTK20__)
|
|
#include "wx/gtk/region.h"
|
|
#elif defined(__WXGTK__)
|
|
#include "wx/gtk1/region.h"
|
|
#elif defined(__WXMOTIF__) || defined(__WXX11__)
|
|
#include "wx/x11/region.h"
|
|
#elif defined(__WXMGL__)
|
|
#include "wx/mgl/region.h"
|
|
#elif defined(__WXDFB__)
|
|
#include "wx/dfb/region.h"
|
|
#elif defined(__WXMAC__)
|
|
#include "wx/mac/region.h"
|
|
#elif defined(__WXCOCOA__)
|
|
#include "wx/cocoa/region.h"
|
|
#elif defined(__WXPM__)
|
|
#include "wx/os2/region.h"
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// inline functions implementation
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// NB: these functions couldn't be defined in the class declaration as they use
|
|
// wxRegion and so can be only defined after including the header declaring
|
|
// the real class
|
|
|
|
inline bool wxRegionBase::Intersect(const wxRect& rect)
|
|
{
|
|
return DoIntersect(wxRegion(rect));
|
|
}
|
|
|
|
inline bool wxRegionBase::Subtract(const wxRect& rect)
|
|
{
|
|
return DoSubtract(wxRegion(rect));
|
|
}
|
|
|
|
inline bool wxRegionBase::Xor(const wxRect& rect)
|
|
{
|
|
return DoXor(wxRegion(rect));
|
|
}
|
|
|
|
// ...and these functions are here because they call the ones above, and its
|
|
// not really proper to call an inline function before its defined inline.
|
|
|
|
inline bool wxRegionBase::Intersect(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
|
|
{
|
|
return Intersect(wxRect(x, y, w, h));
|
|
}
|
|
|
|
inline bool wxRegionBase::Subtract(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
|
|
{
|
|
return Subtract(wxRect(x, y, w, h));
|
|
}
|
|
|
|
inline bool wxRegionBase::Xor(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
|
|
{
|
|
return Xor(wxRect(x, y, w, h));
|
|
}
|
|
|
|
#ifdef wxHAS_REGION_COMBINE
|
|
|
|
inline bool wxRegionWithCombine::Combine(wxCoord x,
|
|
wxCoord y,
|
|
wxCoord w,
|
|
wxCoord h,
|
|
wxRegionOp op)
|
|
{
|
|
return DoCombine(wxRegion(x, y, w, h), op);
|
|
}
|
|
|
|
inline bool wxRegionWithCombine::Combine(const wxRect& rect, wxRegionOp op)
|
|
{
|
|
return DoCombine(wxRegion(rect), op);
|
|
}
|
|
|
|
#endif // wxHAS_REGION_COMBINE
|
|
|
|
#endif // _WX_REGION_H_BASE_
|