8f8d58d193
Change {DECLARE,IMPLEMENT}_*CLASS and {DECLARE,BEGIN,END}_EVENT_TABLE
occurrences to use the wx-prefixed version of the macros.
483 lines
11 KiB
C++
483 lines
11 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// File: src/x11/region.cpp
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// Purpose: Region class
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// Author: Julian Smart, Robert Roebling
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// Created: Fri Oct 24 10:46:34 MET 1997
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// Copyright: (c) 1997 Julian Smart, Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// for compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#include "wx/region.h"
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#ifndef WX_PRECOMP
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#include "wx/log.h"
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#include "wx/gdicmn.h"
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#endif
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#ifdef __VMS__
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#pragma message disable nosimpint
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#endif
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#include "wx/x11/private.h"
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#include "X11/Xutil.h"
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#ifdef __VMS__
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#pragma message enable nosimpint
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#endif
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// ----------------------------------------------------------------------------
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// wxRegionRefData: private class containing the information about the region
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// ----------------------------------------------------------------------------
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class wxRegionRefData : public wxGDIRefData
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{
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public:
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wxRegionRefData()
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{
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m_region = NULL;
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}
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wxRegionRefData(const wxRegionRefData& refData)
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{
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m_region = XCreateRegion();
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XUnionRegion( refData.m_region, m_region, m_region );
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}
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virtual ~wxRegionRefData()
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{
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if (m_region)
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XDestroyRegion( m_region );
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}
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Region m_region;
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};
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// ----------------------------------------------------------------------------
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// macros
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// ----------------------------------------------------------------------------
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#define M_REGIONDATA ((wxRegionRefData *)m_refData)
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#define M_REGIONDATA_OF(rgn) ((wxRegionRefData *)(rgn.m_refData))
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wxIMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject);
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wxIMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject);
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// ----------------------------------------------------------------------------
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// wxRegion construction
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// ----------------------------------------------------------------------------
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#define M_REGIONDATA ((wxRegionRefData *)m_refData)
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void wxRegion::InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
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{
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XRectangle rect;
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rect.x = (short)x;
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rect.y = (short)y;
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rect.width = (unsigned short)w;
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rect.height = (unsigned short)h;
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = XCreateRegion();
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XUnionRectWithRegion( &rect, M_REGIONDATA->m_region, M_REGIONDATA->m_region );
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}
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wxRegion::wxRegion( size_t n, const wxPoint *points, wxPolygonFillMode fillStyle )
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{
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XPoint *xpoints = new XPoint[n];
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for ( size_t i = 0 ; i < n ; i++ )
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{
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xpoints[i].x = points[i].x;
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xpoints[i].y = points[i].y;
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}
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m_refData = new wxRegionRefData();
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if ( fillStyle == wxODDEVEN_RULE )
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M_REGIONDATA->m_region = XPolygonRegion(xpoints, n, EvenOddRule);
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else if ( fillStyle == wxWINDING_RULE )
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M_REGIONDATA->m_region = XPolygonRegion(xpoints, n, WindingRule);
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}
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wxRegion::~wxRegion()
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{
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// m_refData unrefed in ~wxObject
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}
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wxGDIRefData *wxRegion::CreateGDIRefData() const
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{
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return new wxRegionRefData;
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}
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wxGDIRefData *wxRegion::CloneGDIRefData(const wxGDIRefData *data) const
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{
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return new wxRegionRefData(*(wxRegionRefData *)data);
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}
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// ----------------------------------------------------------------------------
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// wxRegion comparison
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// ----------------------------------------------------------------------------
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bool wxRegion::DoIsEqual(const wxRegion& region) const
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{
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return XEqualRegion( M_REGIONDATA->m_region,
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M_REGIONDATA_OF(region)->m_region ) == True;
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}
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// ----------------------------------------------------------------------------
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// wxRegion operations
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// ----------------------------------------------------------------------------
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void wxRegion::Clear()
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{
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UnRef();
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}
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bool wxRegion::DoUnionWithRect(const wxRect& r)
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{
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// work around for XUnionRectWithRegion() bug: taking a union with an empty
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// rect results in an empty region (at least XFree 3.3.6 and 4.0 have this
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// problem)
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if ( r.IsEmpty() )
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return true;
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XRectangle rect;
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rect.x = (short)r.x;
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rect.y = (short)r.y;
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rect.width = (unsigned short)r.width;
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rect.height = (unsigned short)r.height;
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = XCreateRegion();
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}
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else
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{
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AllocExclusive();
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}
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XUnionRectWithRegion( &rect, M_REGIONDATA->m_region, M_REGIONDATA->m_region );
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return true;
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}
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bool wxRegion::DoUnionWithRegion( const wxRegion& region )
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{
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wxCHECK_MSG( region.IsOk(), false, wxT("invalid region") );
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = XCreateRegion();
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}
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else
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{
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AllocExclusive();
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}
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XUnionRegion( M_REGIONDATA->m_region,
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M_REGIONDATA_OF(region)->m_region,
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M_REGIONDATA->m_region );
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return true;
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}
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bool wxRegion::DoIntersect( const wxRegion& region )
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{
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wxCHECK_MSG( region.IsOk(), false, wxT("invalid region") );
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = XCreateRegion();
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// leave here
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return true;
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}
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else
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{
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AllocExclusive();
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}
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XIntersectRegion( M_REGIONDATA->m_region,
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M_REGIONDATA_OF(region)->m_region,
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M_REGIONDATA->m_region );
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return true;
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}
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bool wxRegion::DoSubtract( const wxRegion& region )
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{
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wxCHECK_MSG( region.IsOk(), false, wxT("invalid region") );
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = XCreateRegion();
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}
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else
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{
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AllocExclusive();
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}
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XSubtractRegion( M_REGIONDATA->m_region,
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M_REGIONDATA_OF(region)->m_region,
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M_REGIONDATA->m_region );
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return true;
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}
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bool wxRegion::DoXor( const wxRegion& region )
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{
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wxCHECK_MSG( region.IsOk(), false, wxT("invalid region") );
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = XCreateRegion();
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}
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else
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{
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AllocExclusive();
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}
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XXorRegion( M_REGIONDATA->m_region,
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M_REGIONDATA_OF(region)->m_region,
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M_REGIONDATA->m_region );
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return true;
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}
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// ----------------------------------------------------------------------------
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// wxRegion tests
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// ----------------------------------------------------------------------------
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bool wxRegion::DoGetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const
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{
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if (m_refData)
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{
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XRectangle rect;
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XClipBox( M_REGIONDATA->m_region, &rect );
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x = rect.x;
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y = rect.y;
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w = rect.width;
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h = rect.height;
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return true;
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}
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else
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{
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x = 0;
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y = 0;
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w = -1;
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h = -1;
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return false;
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}
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}
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bool wxRegion::DoOffset( wxCoord x, wxCoord y )
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{
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wxCHECK_MSG( m_refData, false, wxS("invalid region") );
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AllocExclusive();
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XOffsetRegion( M_REGIONDATA->m_region, x, y );
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return true;
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}
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bool wxRegion::IsEmpty() const
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{
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if (!m_refData)
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return true;
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return XEmptyRegion( M_REGIONDATA->m_region ) == True;
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}
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wxRegionContain wxRegion::DoContainsPoint( wxCoord x, wxCoord y ) const
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{
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if (!m_refData)
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return wxOutRegion;
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if (XPointInRegion( M_REGIONDATA->m_region, x, y ))
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return wxInRegion;
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else
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return wxOutRegion;
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}
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wxRegionContain wxRegion::DoContainsRect(const wxRect& r) const
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{
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if (!m_refData)
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return wxOutRegion;
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int res = XRectInRegion(M_REGIONDATA->m_region, r.x, r.y, r.width, r.height);
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switch (res)
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{
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case RectangleIn: return wxInRegion;
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case RectangleOut: return wxOutRegion;
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case RectanglePart: return wxPartRegion;
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}
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return wxOutRegion;
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}
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WXRegion *wxRegion::GetX11Region() const
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{
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if (!m_refData)
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return NULL;
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return (WXRegion*) M_REGIONDATA->m_region;
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}
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// ----------------------------------------------------------------------------
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// wxRegionIterator
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// ----------------------------------------------------------------------------
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// the following structures must match the private structures
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// in X11 region code ( xc/lib/X11/region.h )
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// this makes the Region type transparent
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// and we have access to the region rectangles
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struct _XBox {
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short x1, x2, y1, y2;
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};
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struct _XRegion {
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long size , numRects;
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_XBox *rects, extents;
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};
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class wxRIRefData: public wxGDIRefData
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{
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public:
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wxRIRefData() : m_rects(0), m_numRects(0){}
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virtual ~wxRIRefData();
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wxRect *m_rects;
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size_t m_numRects;
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void CreateRects( const wxRegion& r );
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};
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wxRIRefData::~wxRIRefData()
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{
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delete [] m_rects;
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}
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void wxRIRefData::CreateRects( const wxRegion& region )
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{
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if (m_rects)
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delete [] m_rects;
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m_rects = 0;
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m_numRects = 0;
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if (region.IsEmpty()) return;
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Region r = (Region) region.GetX11Region();
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if (r)
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{
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#if wxUSE_NANOX
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GR_RECT rect;
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GrGetRegionBox(r, & rect);
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m_numRects = 1;
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m_rects = new wxRect[1];
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m_rects[0].x = rect.x;
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m_rects[0].y = rect.y;
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m_rects[0].width = rect.width;
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m_rects[0].height = rect.height;
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#else
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m_numRects = r->numRects;
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if (m_numRects)
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{
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m_rects = new wxRect[m_numRects];
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for (size_t i=0; i < m_numRects; ++i)
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{
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_XBox &xr = r->rects[i];
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wxRect &wr = m_rects[i];
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wr.x = xr.x1;
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wr.y = xr.y1;
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wr.width = xr.x2-xr.x1;
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wr.height = xr.y2-xr.y1;
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}
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}
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#endif
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}
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}
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wxRegionIterator::wxRegionIterator()
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{
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m_refData = new wxRIRefData();
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Reset();
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}
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wxRegionIterator::wxRegionIterator( const wxRegion& region )
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{
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m_refData = new wxRIRefData();
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Reset(region);
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}
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void wxRegionIterator::Reset( const wxRegion& region )
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{
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m_region = region;
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((wxRIRefData*)m_refData)->CreateRects(region);
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Reset();
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}
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bool wxRegionIterator::HaveRects() const
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{
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return m_current < ((wxRIRefData*)m_refData)->m_numRects;
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}
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wxRegionIterator::operator bool () const
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{
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return HaveRects();
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}
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void wxRegionIterator::operator ++ ()
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{
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if (HaveRects()) ++m_current;
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}
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void wxRegionIterator::operator ++ (int)
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{
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if (HaveRects()) ++m_current;
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}
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wxCoord wxRegionIterator::GetX() const
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{
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if( !HaveRects() ) return 0;
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return ((wxRIRefData*)m_refData)->m_rects[m_current].x;
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}
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wxCoord wxRegionIterator::GetY() const
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{
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if( !HaveRects() ) return 0;
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return ((wxRIRefData*)m_refData)->m_rects[m_current].y;
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}
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wxCoord wxRegionIterator::GetW() const
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{
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if( !HaveRects() ) return -1;
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return ((wxRIRefData*)m_refData)->m_rects[m_current].width;
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}
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wxCoord wxRegionIterator::GetH() const
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{
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if( !HaveRects() ) return -1;
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return ((wxRIRefData*)m_refData)->m_rects[m_current].height;
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}
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wxRect wxRegionIterator::GetRect() const
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{
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wxRect r;
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if( HaveRects() )
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r = ((wxRIRefData*)m_refData)->m_rects[m_current];
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return r;
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}
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