461e93f921
are now crucial to wxWindows. Further Nano-X fixes; now compiles and links in Nano-X mode. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14358 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
553 lines
12 KiB
C++
553 lines
12 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// File: region.cpp
|
|
// Purpose: Region class
|
|
// Author: Markus Holzem, Julian Smart, Robert Roebling
|
|
// Created: Fri Oct 24 10:46:34 MET 1997
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) 1997 Markus Holzem, Julian Smart, Robert Roebling
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifdef __GNUG__
|
|
#pragma implementation "region.h"
|
|
#endif
|
|
|
|
#include "wx/region.h"
|
|
#include "wx/gdicmn.h"
|
|
#include "wx/log.h"
|
|
|
|
#ifdef __VMS__
|
|
#pragma message disable nosimpint
|
|
#endif
|
|
#include "wx/x11/private.h"
|
|
#include "X11/Xutil.h"
|
|
#ifdef __VMS__
|
|
#pragma message enable nosimpint
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegionRefData: private class containing the information about the region
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class wxRegionRefData : public wxObjectRefData
|
|
{
|
|
public:
|
|
wxRegionRefData()
|
|
{
|
|
m_region = NULL;
|
|
}
|
|
|
|
wxRegionRefData(const wxRegionRefData& refData)
|
|
{
|
|
m_region = XCreateRegion();
|
|
XUnionRegion( refData.m_region, m_region, m_region );
|
|
}
|
|
|
|
~wxRegionRefData()
|
|
{
|
|
if (m_region)
|
|
XDestroyRegion( m_region );
|
|
}
|
|
|
|
Region m_region;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// macros
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#define M_REGIONDATA ((wxRegionRefData *)m_refData)
|
|
#define M_REGIONDATA_OF(rgn) ((wxRegionRefData *)(rgn.m_refData))
|
|
|
|
IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject);
|
|
IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegion construction
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#define M_REGIONDATA ((wxRegionRefData *)m_refData)
|
|
|
|
void wxRegion::InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
|
|
{
|
|
XRectangle rect;
|
|
rect.x = x;
|
|
rect.y = y;
|
|
rect.width = w;
|
|
rect.height = h;
|
|
|
|
m_refData = new wxRegionRefData();
|
|
|
|
M_REGIONDATA->m_region = XCreateRegion();
|
|
XUnionRectWithRegion( &rect, M_REGIONDATA->m_region, M_REGIONDATA->m_region );
|
|
}
|
|
|
|
wxRegion::wxRegion( size_t n, const wxPoint *points, int fillStyle )
|
|
{
|
|
#if 0
|
|
XPoint *xpoints = new XPoint[n];
|
|
for ( size_t i = 0 ; i < n ; i++ )
|
|
{
|
|
xpoints[i].x = points[i].x;
|
|
xpoints[i].y = points[i].y;
|
|
}
|
|
|
|
m_refData = new wxRegionRefData();
|
|
|
|
Region* reg = gdk_region_polygon
|
|
(
|
|
gdkpoints,
|
|
n,
|
|
fillStyle == wxWINDING_RULE ? GDK_WINDING_RULE
|
|
: GDK_EVEN_ODD_RULE
|
|
);
|
|
|
|
M_REGIONDATA->m_region = reg;
|
|
|
|
delete [] xpoints;
|
|
#endif
|
|
}
|
|
|
|
wxRegion::~wxRegion()
|
|
{
|
|
// m_refData unrefed in ~wxObject
|
|
}
|
|
|
|
wxObjectRefData *wxRegion::CreateRefData() const
|
|
{
|
|
return new wxRegionRefData;
|
|
}
|
|
|
|
wxObjectRefData *wxRegion::CloneRefData(const wxObjectRefData *data) const
|
|
{
|
|
return new wxRegionRefData(*(wxRegionRefData *)data);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegion comparison
|
|
// ----------------------------------------------------------------------------
|
|
|
|
bool wxRegion::operator==( const wxRegion& region )
|
|
{
|
|
if (m_refData == region.m_refData) return TRUE;
|
|
|
|
if (!m_refData || !region.m_refData) return FALSE;
|
|
|
|
// compare the regions themselves, not the pointers to ref data!
|
|
return XEqualRegion( M_REGIONDATA->m_region,
|
|
M_REGIONDATA_OF(region)->m_region );
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegion operations
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRegion::Clear()
|
|
{
|
|
UnRef();
|
|
}
|
|
|
|
bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
|
|
{
|
|
XRectangle rect;
|
|
rect.x = x;
|
|
rect.y = y;
|
|
rect.width = width;
|
|
rect.height = height;
|
|
|
|
if (!m_refData)
|
|
{
|
|
m_refData = new wxRegionRefData();
|
|
M_REGIONDATA->m_region = XCreateRegion();
|
|
XUnionRectWithRegion( &rect, M_REGIONDATA->m_region, M_REGIONDATA->m_region );
|
|
}
|
|
else
|
|
{
|
|
AllocExclusive();
|
|
|
|
XUnionRectWithRegion( &rect, M_REGIONDATA->m_region, M_REGIONDATA->m_region );
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxRegion::Union( const wxRect& rect )
|
|
{
|
|
return Union( rect.x, rect.y, rect.width, rect.height );
|
|
}
|
|
|
|
bool wxRegion::Union( const wxRegion& region )
|
|
{
|
|
if (region.IsNull())
|
|
return FALSE;
|
|
|
|
if (!m_refData)
|
|
{
|
|
m_refData = new wxRegionRefData();
|
|
M_REGIONDATA->m_region = XCreateRegion();
|
|
}
|
|
else
|
|
{
|
|
AllocExclusive();
|
|
}
|
|
|
|
XUnionRegion( M_REGIONDATA->m_region,
|
|
M_REGIONDATA_OF(region)->m_region,
|
|
M_REGIONDATA->m_region );
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
|
|
{
|
|
wxRegion reg( x, y, width, height );
|
|
|
|
return Intersect( reg );
|
|
}
|
|
|
|
bool wxRegion::Intersect( const wxRect& rect )
|
|
{
|
|
wxRegion reg( rect );
|
|
|
|
return Intersect( reg );
|
|
}
|
|
|
|
bool wxRegion::Intersect( const wxRegion& region )
|
|
{
|
|
if (region.IsNull())
|
|
return FALSE;
|
|
|
|
if (!m_refData)
|
|
{
|
|
m_refData = new wxRegionRefData();
|
|
M_REGIONDATA->m_region = XCreateRegion();
|
|
|
|
// leave here
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
AllocExclusive();
|
|
}
|
|
|
|
XIntersectRegion( M_REGIONDATA->m_region,
|
|
M_REGIONDATA_OF(region)->m_region,
|
|
M_REGIONDATA->m_region );
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
|
|
{
|
|
wxRegion reg( x, y, width, height );
|
|
return Subtract( reg );
|
|
}
|
|
|
|
bool wxRegion::Subtract( const wxRect& rect )
|
|
{
|
|
wxRegion reg( rect );
|
|
return Subtract( reg );
|
|
}
|
|
|
|
bool wxRegion::Subtract( const wxRegion& region )
|
|
{
|
|
if (region.IsNull())
|
|
return FALSE;
|
|
|
|
if (!m_refData)
|
|
{
|
|
m_refData = new wxRegionRefData();
|
|
M_REGIONDATA->m_region = XCreateRegion();
|
|
}
|
|
else
|
|
{
|
|
AllocExclusive();
|
|
}
|
|
|
|
XSubtractRegion( M_REGIONDATA->m_region,
|
|
M_REGIONDATA_OF(region)->m_region,
|
|
M_REGIONDATA->m_region );
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
|
|
{
|
|
wxRegion reg( x, y, width, height );
|
|
return Xor( reg );
|
|
}
|
|
|
|
bool wxRegion::Xor( const wxRect& rect )
|
|
{
|
|
wxRegion reg( rect );
|
|
return Xor( reg );
|
|
}
|
|
|
|
bool wxRegion::Xor( const wxRegion& region )
|
|
{
|
|
if (region.IsNull())
|
|
return FALSE;
|
|
|
|
if (!m_refData)
|
|
{
|
|
m_refData = new wxRegionRefData();
|
|
M_REGIONDATA->m_region = XCreateRegion();
|
|
}
|
|
else
|
|
{
|
|
AllocExclusive();
|
|
}
|
|
|
|
XXorRegion( M_REGIONDATA->m_region,
|
|
M_REGIONDATA_OF(region)->m_region,
|
|
M_REGIONDATA->m_region );
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegion tests
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const
|
|
{
|
|
if (m_refData)
|
|
{
|
|
XRectangle rect;
|
|
XClipBox( M_REGIONDATA->m_region, &rect );
|
|
x = rect.x;
|
|
y = rect.y;
|
|
w = rect.width;
|
|
h = rect.height;
|
|
}
|
|
else
|
|
{
|
|
x = 0;
|
|
y = 0;
|
|
w = -1;
|
|
h = -1;
|
|
}
|
|
}
|
|
|
|
wxRect wxRegion::GetBox() const
|
|
{
|
|
wxCoord x, y, w, h;
|
|
GetBox( x, y, w, h );
|
|
return wxRect( x, y, w, h );
|
|
}
|
|
|
|
bool wxRegion::Offset( wxCoord x, wxCoord y )
|
|
{
|
|
if (!m_refData)
|
|
return FALSE;
|
|
|
|
AllocExclusive();
|
|
|
|
XOffsetRegion( M_REGIONDATA->m_region, x, y );
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxRegion::Empty() const
|
|
{
|
|
if (!m_refData)
|
|
return TRUE;
|
|
|
|
return XEmptyRegion( M_REGIONDATA->m_region );
|
|
}
|
|
|
|
wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y ) const
|
|
{
|
|
if (!m_refData)
|
|
return wxOutRegion;
|
|
|
|
if (XPointInRegion( M_REGIONDATA->m_region, x, y ))
|
|
return wxInRegion;
|
|
else
|
|
return wxOutRegion;
|
|
}
|
|
|
|
wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const
|
|
{
|
|
if (!m_refData)
|
|
return wxOutRegion;
|
|
|
|
int res = XRectInRegion( M_REGIONDATA->m_region, x, y, w, h );
|
|
switch (res)
|
|
{
|
|
case RectangleIn: return wxInRegion;
|
|
case RectangleOut: return wxOutRegion;
|
|
case RectanglePart: return wxPartRegion;
|
|
}
|
|
return wxOutRegion;
|
|
}
|
|
|
|
wxRegionContain wxRegion::Contains(const wxPoint& pt) const
|
|
{
|
|
return Contains( pt.x, pt.y );
|
|
}
|
|
|
|
wxRegionContain wxRegion::Contains(const wxRect& rect) const
|
|
{
|
|
return Contains( rect.x, rect.y, rect.width, rect.height );
|
|
}
|
|
|
|
WXRegion *wxRegion::GetX11Region() const
|
|
{
|
|
if (!m_refData)
|
|
return (WXRegion*) NULL;
|
|
|
|
return (WXRegion*) M_REGIONDATA->m_region;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegionIterator
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// the following structures must match the private structures
|
|
// in X11 region code ( xc/lib/X11/region.h )
|
|
|
|
// this makes the Region type transparent
|
|
// and we have access to the region rectangles
|
|
|
|
struct _XBox {
|
|
short x1, x2, y1, y2;
|
|
};
|
|
|
|
struct _XRegion {
|
|
long size , numRects;
|
|
_XBox *rects, extents;
|
|
};
|
|
|
|
class wxRIRefData: public wxObjectRefData
|
|
{
|
|
public:
|
|
|
|
wxRIRefData() : m_rects(0), m_numRects(0){}
|
|
~wxRIRefData();
|
|
|
|
wxRect *m_rects;
|
|
size_t m_numRects;
|
|
|
|
void CreateRects( const wxRegion& r );
|
|
};
|
|
|
|
wxRIRefData::~wxRIRefData()
|
|
{
|
|
delete m_rects;
|
|
}
|
|
|
|
void wxRIRefData::CreateRects( const wxRegion& region )
|
|
{
|
|
if (m_rects)
|
|
delete m_rects;
|
|
|
|
m_rects = 0;
|
|
m_numRects = 0;
|
|
|
|
if (region.IsEmpty()) return;
|
|
|
|
Region r = (Region) region.GetX11Region();
|
|
if (r)
|
|
{
|
|
#if wxUSE_NANOX
|
|
GR_RECT rect;
|
|
GrGetRegionBox(r, & rect);
|
|
m_numRects = 1;
|
|
m_rects = new wxRect[1];
|
|
m_rects[0].x = rect.x;
|
|
m_rects[0].y = rect.y;
|
|
m_rects[0].width = rect.width;
|
|
m_rects[0].height = rect.height;
|
|
#else
|
|
m_numRects = r->numRects;
|
|
if (m_numRects)
|
|
{
|
|
m_rects = new wxRect[m_numRects];
|
|
for (size_t i=0; i < m_numRects; ++i)
|
|
{
|
|
_XBox &xr = r->rects[i];
|
|
wxRect &wr = m_rects[i];
|
|
wr.x = xr.x1;
|
|
wr.y = xr.y1;
|
|
wr.width = xr.x2-xr.x1;
|
|
wr.height = xr.y2-xr.y1;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
wxRegionIterator::wxRegionIterator()
|
|
{
|
|
m_refData = new wxRIRefData();
|
|
Reset();
|
|
}
|
|
|
|
wxRegionIterator::wxRegionIterator( const wxRegion& region )
|
|
{
|
|
m_refData = new wxRIRefData();
|
|
Reset(region);
|
|
}
|
|
|
|
void wxRegionIterator::Reset( const wxRegion& region )
|
|
{
|
|
m_region = region;
|
|
((wxRIRefData*)m_refData)->CreateRects(region);
|
|
Reset();
|
|
}
|
|
|
|
bool wxRegionIterator::HaveRects() const
|
|
{
|
|
return m_current < ((wxRIRefData*)m_refData)->m_numRects;
|
|
}
|
|
|
|
wxRegionIterator::operator bool () const
|
|
{
|
|
return HaveRects();
|
|
}
|
|
|
|
void wxRegionIterator::operator ++ ()
|
|
{
|
|
if (HaveRects()) ++m_current;
|
|
}
|
|
|
|
void wxRegionIterator::operator ++ (int)
|
|
{
|
|
if (HaveRects()) ++m_current;
|
|
}
|
|
|
|
wxCoord wxRegionIterator::GetX() const
|
|
{
|
|
if( !HaveRects() ) return 0;
|
|
return ((wxRIRefData*)m_refData)->m_rects[m_current].x;
|
|
}
|
|
|
|
wxCoord wxRegionIterator::GetY() const
|
|
{
|
|
if( !HaveRects() ) return 0;
|
|
return ((wxRIRefData*)m_refData)->m_rects[m_current].y;
|
|
}
|
|
|
|
wxCoord wxRegionIterator::GetW() const
|
|
{
|
|
if( !HaveRects() ) return -1;
|
|
return ((wxRIRefData*)m_refData)->m_rects[m_current].width;
|
|
}
|
|
|
|
wxCoord wxRegionIterator::GetH() const
|
|
{
|
|
if( !HaveRects() ) return -1;
|
|
return ((wxRIRefData*)m_refData)->m_rects[m_current].height;
|
|
}
|
|
|
|
wxRect wxRegionIterator::GetRect() const
|
|
{
|
|
wxRect r;
|
|
if( HaveRects() )
|
|
r = ((wxRIRefData*)m_refData)->m_rects[m_current];
|
|
|
|
return r;
|
|
}
|
|
|