655719367a
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@27408 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
195 lines
5.7 KiB
C++
195 lines
5.7 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/gtk/region.h
|
|
// Purpose:
|
|
// Author: Robert Roebling
|
|
// Id: $Id$
|
|
// Copyright: (c) 1998 Robert Roebling
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_GTK_REGION_H_
|
|
#define _WX_GTK_REGION_H_
|
|
|
|
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
|
|
#pragma interface
|
|
#endif
|
|
|
|
#include "wx/list.h"
|
|
#include "wx/gdiobj.h"
|
|
#include "wx/gdicmn.h"
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// classes
|
|
//-----------------------------------------------------------------------------
|
|
|
|
class wxRegion;
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// constants
|
|
//-----------------------------------------------------------------------------
|
|
|
|
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.
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegion
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class wxRegion : public wxGDIObject
|
|
{
|
|
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,
|
|
const wxColour& transColour = wxNullColour,
|
|
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( 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 ;
|
|
|
|
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;
|
|
|
|
// 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. If the bitmap has a mask then it will be used,
|
|
// otherwise the colour to be treated as transparent may be specified,
|
|
// along with an optional tolerance value.
|
|
bool Union(const wxBitmap& bmp,
|
|
const wxColour& transColour = wxNullColour,
|
|
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
|
|
// _WX_GTK_REGION_H_
|