[wxWidgets.git] / src / os2 / region.cpp

/////////////////////////////////////////////////////////////////////////////
// File:      region.cpp
// Purpose:   Region class
// Author:    David Webster
// Modified by:
// Created:   10/15/99
// RCS-ID:    $Id$
// Copyright: (c) Davdi Webster
// Licence:   wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#include "wx/app.h"
#include "wx/os2/region.h"
#include "wx/gdicmn.h"

#include "wx/window.h"
#include "wx/os2/private.h"

    IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
    IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)

//-----------------------------------------------------------------------------
// wxRegionRefData implementation
//-----------------------------------------------------------------------------

class WXDLLEXPORT wxRegionRefData : public wxGDIRefData {
public:
    wxRegionRefData()
    {
        m_hRegion = 0;
        m_hPS     = 0;
    }

    wxRegionRefData(const wxRegionRefData& rData)
    {
        RGNRECT                     vRgnData;
        PRECTL                      pRect = NULL;

        if (::GpiQueryRegionRects( rData.m_hPS      // Pres space
                                  ,rData.m_hRegion  // Handle of region to query
                                  ,NULL             // Return all RECTs
                                  ,&vRgnData        // Will contain number or RECTs in region
                                  ,NULL             // NULL to return number of RECTs
                                 ))
        {
            pRect = new RECTL[vRgnData.crcReturned];
            vRgnData.crc = vRgnData.crcReturned;
            vRgnData.ircStart = 1;
            if (::GpiQueryRegionRects( rData.m_hPS     // Pres space of source
                                      ,rData.m_hRegion // Handle of source region
                                      ,NULL            // Return all RECTs
                                      ,&vRgnData       // Operations set to return rects
                                      ,pRect           // Will contain the actual RECTS
                                     ))
            {
                m_hRegion = ::GpiCreateRegion( rData.m_hPS
                                              ,vRgnData.crcReturned
                                              ,pRect
                                             );
                m_hPS = rData.m_hPS;
            }
            delete [] pRect;
        }
    }

    ~wxRegionRefData()
    {
        ::GpiDestroyRegion(m_hPS, m_hRegion);
    }

    HRGN                            m_hRegion;
    HPS                             m_hPS;
};

#define M_REGION (((wxRegionRefData*)m_refData)->m_hRegion)
#define M_REGION_OF(rgn) (((wxRegionRefData*)(rgn.m_refData))->m_hRegion)

//-----------------------------------------------------------------------------
// wxRegion
//-----------------------------------------------------------------------------

/*!
 * Create an empty region.
 */
wxRegion::wxRegion()
{
    m_refData = new wxRegionRefData;
} // end of wxRegion::wxRegion

wxRegion::wxRegion(
  WXHRGN                            hRegion,
  WXHDC                             hPS
)
{
    m_refData = new wxRegionRefData;
    M_REGION = (HRGN) hRegion;
    (((wxRegionRefData*)m_refData)->m_hPS) = hPS;
} // end of wxRegion::wxRegion

wxRegion::wxRegion(
  wxCoord                           x
, wxCoord                           y
, wxCoord                           vWidth
, wxCoord                           vHeight
)
{
    RECTL                           vRect;
    SIZEL                           vSize = {0, 0};
    DEVOPENSTRUC                    vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
    HDC                             hDC = ::DevOpenDC( vHabmain
                                                      ,OD_MEMORY
                                                      ,"*"
                                                      ,5L
                                                      ,(PDEVOPENDATA)&vDop
                                                      ,NULLHANDLE
                                                     );


    vRect.xLeft   = x;
    vRect.xRight  = x + vWidth;
    vRect.yBottom = y;
    vRect.yTop    = y + vHeight;

    m_refData     = new wxRegionRefData;

    //
    // Need a PS to create a Region
    //
    ((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain
                                                         ,hDC
                                                         ,&vSize
                                                         ,PU_PELS | GPIT_MICRO | GPIA_ASSOC
                                                        );
    M_REGION      = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS
                                      ,1
                                      ,&vRect
                                     );
} // end of wxRegion::wxRegion

wxRegion::wxRegion(
  const wxPoint&                    rTopLeft
, const wxPoint&                    rBottomRight
)
{
    RECTL                           vRect;
    SIZEL                           vSize = {0, 0};
    DEVOPENSTRUC                    vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
    HDC                             hDC = ::DevOpenDC( vHabmain
                                                      ,OD_MEMORY
                                                      ,"*"
                                                      ,5L
                                                      ,(PDEVOPENDATA)&vDop
                                                      ,NULLHANDLE
                                                     );

    vRect.xLeft   = rTopLeft.x;
    vRect.xRight  = rBottomRight.x;
    vRect.yBottom = rBottomRight.y;
    vRect.yTop    = rTopLeft.y;

    m_refData     = new wxRegionRefData;

    //
    // Need a PS to create a Region
    //
    ((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain
                                                         ,hDC
                                                         ,&vSize
                                                         ,PU_PELS | GPIT_MICRO | GPIA_ASSOC
                                                        );
    M_REGION      = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS
                                      ,1
                                      ,&vRect
                                     );
} // end of wxRegion::wxRegion

wxRegion::wxRegion(
  const wxRect&                     rRect
)
{
    RECTL                           vRect;
    SIZEL                           vSize = {0, 0};
    DEVOPENSTRUC                    vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
    HDC                             hDC = ::DevOpenDC( vHabmain
                                                      ,OD_MEMORY
                                                      ,"*"
                                                      ,5L
                                                      ,(PDEVOPENDATA)&vDop
                                                      ,NULLHANDLE
                                                     );


    vRect.xLeft   = rRect.x;
    vRect.xRight  = rRect.x + rRect.width;
    vRect.yBottom = rRect.y;
    vRect.yTop    = rRect.y + rRect.height;

    m_refData     = new wxRegionRefData;

    //
    // Need a PS to create a Region
    //
    ((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain
                                                         ,hDC
                                                         ,&vSize
                                                         ,PU_PELS | GPIT_MICRO | GPIA_ASSOC
                                                        );
    M_REGION      = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS
                                      ,1
                                      ,&vRect
                                     );
} // end of wxRegion::wxRegion

//
// Destroy the region.
//
wxRegion::~wxRegion()
{
} // end of wxRegion::~wxRegion

wxObjectRefData *wxRegion::CreateData() const
{
    return new wxRegionRefData;
}

wxObjectRefData *wxRegion::CloneData(const wxObjectRefData *data) const
{
    return new wxRegionRefData(*(wxRegionRefData *)data);
}

//-----------------------------------------------------------------------------
//# Modify region
//-----------------------------------------------------------------------------

bool wxRegion::Offset(
  wxCoord                           x
, wxCoord                           y
)
{
    if ( !x && !y )
    {
        // nothing to do
        return TRUE;
    }

    AllocExclusive();

#if 0
    if ( ::OffsetRgn(GetHrgn(), x, y) == ERROR )
    {
        wxLogLastError(_T("OffsetRgn"));

        return FALSE;
    }
#endif
    return TRUE;
}

//
// Clear current region
//
void wxRegion::Clear()
{
    UnRef();
} // end of wxRegion::Clear

//
// Combine rectangle (x, y, w, h) with this.
//
bool wxRegion::Combine(
  wxCoord                           x
, wxCoord                           y
, wxCoord                           vWidth
, wxCoord                           vHeight
, wxRegionOp                        eOp
)
{
    return Combine(wxRegion(x, y, vWidth, vHeight), eOp);
} // end of wxRegion::Combine

//
// Union region with this.
//
bool wxRegion::Combine(
  const wxRegion&                   rRegion
, wxRegionOp                        eOp
)
{
    //
    // We can't use the API functions if we don't have a valid region handle
    //
    if (!m_refData)
    {
        // combining with an empty/invalid region works differently depending
        // on the operation
        switch (eOp)
        {
            case wxRGN_COPY:
            case wxRGN_OR:
            case wxRGN_XOR:
                *this = rRegion;
                break;

            default:
                wxFAIL_MSG( _T("unknown region operation") );
                // fall through

            case wxRGN_AND:
            case wxRGN_DIFF:
                // leave empty/invalid
                return FALSE;
        }
    }
    else // we have a valid region
    {

        LONG                        lMode = 0;

        switch (eOp)
        {
            case wxRGN_AND:
                lMode = CRGN_AND;
                break;

            case wxRGN_OR:
                lMode = CRGN_OR;
                break;

            case wxRGN_XOR:
                lMode = CRGN_XOR;
                break;

            case wxRGN_DIFF:
                lMode = CRGN_DIFF;
                break;

            case wxRGN_COPY:
            default:
                lMode = CRGN_COPY;
                break;
        }
        return (::GpiCombineRegion( ((wxRegionRefData*)rRegion.m_refData)->m_hPS
                                   ,M_REGION
                                   ,M_REGION
                                   ,((wxRegionRefData*)rRegion.m_refData)->m_hRegion
                                   ,lMode
                                  ) != RGN_ERROR);
    }
    return TRUE;
} // end of wxRegion::Combine

bool wxRegion::Combine(
  const wxRect&                     rRect
, wxRegionOp                        eOp
)
{
    return Combine( rRect.GetLeft()
                   ,rRect.GetTop()
                   ,rRect.GetWidth()
                   ,rRect.GetHeight()
                   ,eOp
                  );
} // end of wxRegion::Combine

//-----------------------------------------------------------------------------
//# Information on region
//-----------------------------------------------------------------------------

//
// Outer bounds of region
//
void wxRegion::GetBox(
  wxCoord&                          x
, wxCoord&                          y
, wxCoord&                          vWidth
, wxCoord&                          vHeight
) const
{
    if (m_refData)
    {
        RECTL                       vRect;
        APIRET                      rc;

        rc = ::GpiQueryRegionBox( ((wxRegionRefData*)m_refData)->m_hPS
                            ,M_REGION
                            ,&vRect
                           );
        x       = vRect.xLeft;
        y       = vRect.yBottom;
        vWidth  = vRect.xRight - vRect.xLeft;
        vHeight = vRect.yTop - vRect.yBottom;
    }
    else
    {
        x = y = vWidth = vHeight = 0L;
    }
} // end of wxRegion::GetBox

wxRect wxRegion::GetBox() const
{
    wxCoord x, y, w, h;
    GetBox(x, y, w, h);
    return wxRect(x, y, w, h);
}

//
// Is region empty?
//
bool wxRegion::Empty() const
{
    wxCoord                         x;
    wxCoord                         y;
    wxCoord                         vWidth;
    wxCoord                         vHeight;

    if (M_REGION == 0)
        return TRUE;

    GetBox( x
           ,y
           ,vWidth
           ,vHeight
          );
    return ((vWidth == 0) && (vHeight == 0));
} // end of wxRegion::Empty

//-----------------------------------------------------------------------------
// Tests
//-----------------------------------------------------------------------------

//
// Does the region contain the point (x,y)?
wxRegionContain wxRegion::Contains(
  wxCoord                           x
, wxCoord                           y
) const
{
    bool                            bOK = FALSE;
    POINTL                          vPoint;

    vPoint.x = x;
    vPoint.y = y;

    if (!m_refData)
        return wxOutRegion;

    LONG                            lInside = ::GpiPtInRegion( ((wxRegionRefData*)m_refData)->m_hPS
                                                              ,M_REGION
                                                              ,&vPoint
                                                             );
    if (lInside == PRGN_INSIDE)
        return wxInRegion;
    return wxOutRegion;
} // end of wxRegion::Contains

//
// Does the region contain the point pt?
//
wxRegionContain wxRegion::Contains(
  const wxPoint&                    rPoint
) const
{
    POINTL                          vPoint = { rPoint.x, rPoint.y };

    if (!m_refData)
        return wxOutRegion;

    LONG                            lInside = ::GpiPtInRegion( ((wxRegionRefData*)m_refData)->m_hPS
                                                              ,M_REGION
                                                              ,&vPoint
                                                             );
    if (lInside == PRGN_INSIDE)
        return wxInRegion;
    else
        return wxOutRegion;
} // end of wxRegion::Contains

//
// Does the region contain the rectangle (x, y, w, h)?
//
wxRegionContain wxRegion::Contains(
  wxCoord                           x
, wxCoord                           y
, wxCoord                           vWidth
, wxCoord                           vHeight
) const
{
    RECTL                           vRect;

    if (!m_refData)
        return wxOutRegion;

    vRect.xLeft   = x;
    vRect.yTop    = y;
    vRect.xRight  = x + vWidth;
    vRect.yBottom = y + vHeight;

    if (PRGN_INSIDE == ::GpiRectInRegion( ((wxRegionRefData*)m_refData)->m_hPS
                                         ,M_REGION
                                         ,&vRect
                                        ))
        return wxInRegion;
    else
        return wxOutRegion;
} // end of wxRegion::Contains

//
// Does the region contain the rectangle rect
//
wxRegionContain wxRegion::Contains(
  const wxRect&                     rRect
) const
{
    if (!m_refData)
        return wxOutRegion;

    wxCoord                         x;
    wxCoord                         y;
    wxCoord                         vWidth;
    wxCoord                         vHeight;

    x       = rRect.x;
    y       = rRect.y;
    vWidth  = rRect.GetWidth();
    vHeight = rRect.GetHeight();
    return Contains( x
                    ,y
                    ,vWidth
                    ,vHeight
                   );
} // end of wxRegion::Contains

//
// Get internal region handle
//
WXHRGN wxRegion::GetHRGN() const
{
    if (!m_refData)
        return (WXHRGN) 0;
    return (WXHRGN) M_REGION;
}

//
// Set a new PS, this means we have to recreate the old region in the new
// PS
//
void wxRegion::SetPS(
  HPS                               hPS
)
{
    RGNRECT                     vRgnData;
    PRECTL                      pRect = NULL;

    if (::GpiQueryRegionRects( ((wxRegionRefData*)m_refData)->m_hPS
                              ,((wxRegionRefData*)m_refData)->m_hRegion
                              ,NULL
                              ,&vRgnData
                              ,NULL
                             ))
    {
        pRect = new RECTL[vRgnData.crcReturned];
        vRgnData.crc = vRgnData.crcReturned;
        vRgnData.ircStart = 1;
        if (::GpiQueryRegionRects( ((wxRegionRefData*)m_refData)->m_hPS
                                  ,((wxRegionRefData*)m_refData)->m_hRegion
                                  ,NULL
                                  ,&vRgnData
                                  ,pRect
                                 ))
        {
            //
            // First destroy the region out of the old PS
            // and then create it in the new and set the new to current
            //
            ::GpiDestroyRegion( ((wxRegionRefData*)m_refData)->m_hPS
                               ,M_REGION
                              );
            ((wxRegionRefData*)m_refData)->m_hRegion = ::GpiCreateRegion( hPS
                                                                         ,vRgnData.crcReturned
                                                                         ,pRect
                                                                        );
            ((wxRegionRefData*)m_refData)->m_hPS = hPS;
        }
        delete [] pRect;
    }
} // end of wxRegion::SetPS

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//                             wxRegionIterator                              //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

//
// Initialize empty iterator
//
wxRegionIterator::wxRegionIterator()
: m_lCurrent(0)
, m_lNumRects(0)
, m_pRects(NULL)
{
} // end of wxRegionIterator::wxRegionIterator

wxRegionIterator::~wxRegionIterator()
{
    if (m_pRects)
        delete[] m_pRects;
} // end of wxRegionIterator::~wxRegionIterator

//
// Initialize iterator for region
//
wxRegionIterator::wxRegionIterator(
  const wxRegion&                   rRegion
)
{
    m_pRects = NULL;
    Reset(rRegion);
} // end of wxRegionIterator::wxRegionIterator

//
// Reset iterator for a new /e region.
//
void wxRegionIterator::Reset(
  const wxRegion&                   rRegion
)
{
    m_lCurrent = 0;
    m_vRegion  = rRegion;

    if (m_pRects)
        delete[] m_pRects;

    m_pRects = NULL;

    if (m_vRegion.Empty())
        m_lNumRects = 0;
    else
    {
        RGNRECT                     vRgnData;
        PRECTL                      pRect;

        if (::GpiQueryRegionRects( ((wxRegionRefData*)rRegion.m_refData)->m_hPS     // Pres space
                                  ,((wxRegionRefData*)rRegion.m_refData)->m_hRegion // Handle of region to query
                                  ,NULL                                             // Return all RECTs
                                  ,&vRgnData                                        // Will contain number or RECTs in region
                                  ,NULL                                             // NULL to return number of RECTs
                                 ))
        {
            pRect = new RECTL[vRgnData.crcReturned];
            m_pRects = new wxRect[vRgnData.crcReturned];
            vRgnData.crc = vRgnData.crcReturned;
            m_lNumRects = vRgnData.crcReturned;
            vRgnData.ircStart = 1;
            if (::GpiQueryRegionRects( ((wxRegionRefData*)rRegion.m_refData)->m_hPS     // Pres space of source
                                      ,((wxRegionRefData*)rRegion.m_refData)->m_hRegion // Handle of source region
                                      ,NULL                                             // Return all RECTs
                                      ,&vRgnData                                        // Operations set to return rects
                                      ,pRect                                            // Will contain the actual RECTS
                                     ))
            {
                M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)rRegion.m_refData)->m_hPS
                                             ,vRgnData.crcReturned
                                             ,pRect
                                            );
                for( LONG i = 0; i < m_lNumRects; i++)
                {
                    m_pRects[i].x      = pRect[i].xLeft;
                    m_pRects[i].width  = pRect[i].xRight - pRect[i].xLeft;
                    m_pRects[i].y      = pRect[i].yBottom;
                    m_pRects[i].height = pRect[i].yTop - pRect[i].yBottom;
                }
                ((wxRegionRefData*)m_refData)->m_hPS = ((wxRegionRefData*)rRegion.m_refData)->m_hPS;
            }
        }
    }
} // end of wxRegionIterator::Reset

//
// Increment iterator. The rectangle returned is the one after the
// incrementation.
//
void wxRegionIterator::operator++ ()
{
    if (m_lCurrent < m_lNumRects)
        ++m_lCurrent;
} // end of wxRegionIterator::operator ++

//
// Increment iterator. The rectangle returned is the one before the
// incrementation.
//
void wxRegionIterator::operator++ (int)
{
    if (m_lCurrent < m_lNumRects)
        ++m_lCurrent;
} // end of wxRegionIterator::operator++

wxCoord wxRegionIterator::GetX() const
{
    if (m_lCurrent < m_lNumRects)
        return m_pRects[m_lCurrent].x;
    return 0L;
} // end of wxRegionIterator::GetX

wxCoord wxRegionIterator::GetY() const
{
    if (m_lCurrent < m_lNumRects)
        return m_pRects[m_lCurrent].y;
    return 0L;
} // end of wxRegionIterator::GetY

wxCoord wxRegionIterator::GetW() const
{
    if (m_lCurrent < m_lNumRects)
        return m_pRects[m_lCurrent].width ;
    return 0L;
} // end of wxRegionIterator::GetW

wxCoord wxRegionIterator::GetH() const
{
    if (m_lCurrent < m_lNumRects)
        return m_pRects[m_lCurrent].height;
    return 0L;
} // end of wxRegionIterator::GetH
Commit	Line	Data
0e320a79 DW	1	/////////////////////////////////////////////////////////////////////////////
	2	// File: region.cpp
	3	// Purpose: Region class
409c9842 DW	4	// Author: David Webster
	5	// Modified by:
	6	// Created: 10/15/99
19193a2c	7	// RCS-ID: $Id$
409c9842	8	// Copyright: (c) Davdi Webster
0e320a79 DW	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
409c9842 DW	12	// For compilers that support precompilation, includes "wx.h".
409c9842 DW	13	#include "wx/wxprec.h"
0e320a79	14
3417f661	15	#include "wx/app.h"
409c9842	16	#include "wx/os2/region.h"
0e320a79 DW	17	#include "wx/gdicmn.h"
0e320a79 DW	18
409c9842 DW	19	#include "wx/window.h"
	20	#include "wx/os2/private.h"
	21
19193a2c KB	22	IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
19193a2c KB	23	IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
0e320a79 DW	24
	25	//-----------------------------------------------------------------------------
	26	// wxRegionRefData implementation
	27	//-----------------------------------------------------------------------------
	28
	29	class WXDLLEXPORT wxRegionRefData : public wxGDIRefData {
	30	public:
409c9842 DW	31	wxRegionRefData()
409c9842 DW	32	{
8d854fa9	33	m_hRegion = 0;
19193a2c	34	m_hPS = 0;
409c9842	35	}
0e320a79	36
8d854fa9	37	wxRegionRefData(const wxRegionRefData& rData)
409c9842	38	{
8d854fa9 DW	39	RGNRECT vRgnData;
	40	PRECTL pRect = NULL;
	41
	42	if (::GpiQueryRegionRects( rData.m_hPS // Pres space
	43	,rData.m_hRegion // Handle of region to query
	44	,NULL // Return all RECTs
	45	,&vRgnData // Will contain number or RECTs in region
	46	,NULL // NULL to return number of RECTs
	47	))
	48	{
	49	pRect = new RECTL[vRgnData.crcReturned];
	50	vRgnData.crc = vRgnData.crcReturned;
	51	vRgnData.ircStart = 1;
	52	if (::GpiQueryRegionRects( rData.m_hPS // Pres space of source
	53	,rData.m_hRegion // Handle of source region
	54	,NULL // Return all RECTs
	55	,&vRgnData // Operations set to return rects
	56	,pRect // Will contain the actual RECTS
	57	))
	58	{
	59	m_hRegion = ::GpiCreateRegion( rData.m_hPS
	60	,vRgnData.crcReturned
	61	,pRect
	62	);
	63	m_hPS = rData.m_hPS;
	64	}
	65	delete [] pRect;
	66	}
409c9842	67	}
0e320a79	68
409c9842 DW	69	~wxRegionRefData()
409c9842 DW	70	{
8d854fa9	71	::GpiDestroyRegion(m_hPS, m_hRegion);
409c9842	72	}
04701dd9	73
8d854fa9 DW	74	HRGN m_hRegion;
8d854fa9 DW	75	HPS m_hPS;
0e320a79 DW	76	};
0e320a79 DW	77
8d854fa9	78	#define M_REGION (((wxRegionRefData*)m_refData)->m_hRegion)
6ed98c6a	79	#define M_REGION_OF(rgn) (((wxRegionRefData*)(rgn.m_refData))->m_hRegion)
0e320a79 DW	80
	81	//-----------------------------------------------------------------------------
	82	// wxRegion
	83	//-----------------------------------------------------------------------------
	84
	85	/*!
	86	* Create an empty region.
	87	*/
	88	wxRegion::wxRegion()
	89	{
	90	m_refData = new wxRegionRefData;
8d854fa9	91	} // end of wxRegion::wxRegion
0e320a79	92
8d854fa9	93	wxRegion::wxRegion(
19193a2c KB	94	WXHRGN hRegion,
19193a2c KB	95	WXHDC hPS
8d854fa9	96	)
409c9842 DW	97	{
	98	m_refData = new wxRegionRefData;
	99	M_REGION = (HRGN) hRegion;
19193a2c	100	(((wxRegionRefData*)m_refData)->m_hPS) = hPS;
8d854fa9 DW	101	} // end of wxRegion::wxRegion
	102
	103	wxRegion::wxRegion(
	104	wxCoord x
	105	, wxCoord y
	106	, wxCoord vWidth
	107	, wxCoord vHeight
	108	)
0e320a79	109	{
8d854fa9 DW	110	RECTL vRect;
	111	SIZEL vSize = {0, 0};
	112	DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
	113	HDC hDC = ::DevOpenDC( vHabmain
	114	,OD_MEMORY
	115	,"*"
	116	,5L
	117	,(PDEVOPENDATA)&vDop
	118	,NULLHANDLE
	119	);
	120
	121
	122	vRect.xLeft = x;
	123	vRect.xRight = x + vWidth;
	124	vRect.yBottom = y;
	125	vRect.yTop = y + vHeight;
	126
	127	m_refData = new wxRegionRefData;
	128
	129	//
	130	// Need a PS to create a Region
	131	//
	132	((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain
	133	,hDC
	134	,&vSize
	135	,PU_PELS \| GPIT_MICRO \| GPIA_ASSOC
	136	);
	137	M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS
	138	,1
	139	,&vRect
	140	);
	141	} // end of wxRegion::wxRegion
	142
	143	wxRegion::wxRegion(
	144	const wxPoint& rTopLeft
	145	, const wxPoint& rBottomRight
	146	)
0e320a79	147	{
8d854fa9 DW	148	RECTL vRect;
	149	SIZEL vSize = {0, 0};
	150	DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
	151	HDC hDC = ::DevOpenDC( vHabmain
	152	,OD_MEMORY
	153	,"*"
	154	,5L
	155	,(PDEVOPENDATA)&vDop
	156	,NULLHANDLE
	157	);
	158
	159	vRect.xLeft = rTopLeft.x;
	160	vRect.xRight = rBottomRight.x;
	161	vRect.yBottom = rBottomRight.y;
	162	vRect.yTop = rTopLeft.y;
	163
	164	m_refData = new wxRegionRefData;
	165
	166	//
	167	// Need a PS to create a Region
	168	//
	169	((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain
	170	,hDC
	171	,&vSize
	172	,PU_PELS \| GPIT_MICRO \| GPIA_ASSOC
	173	);
	174	M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS
	175	,1
	176	,&vRect
	177	);
	178	} // end of wxRegion::wxRegion
	179
	180	wxRegion::wxRegion(
	181	const wxRect& rRect
	182	)
0e320a79	183	{
8d854fa9 DW	184	RECTL vRect;
	185	SIZEL vSize = {0, 0};
	186	DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
	187	HDC hDC = ::DevOpenDC( vHabmain
	188	,OD_MEMORY
	189	,"*"
	190	,5L
	191	,(PDEVOPENDATA)&vDop
	192	,NULLHANDLE
	193	);
	194
	195
	196	vRect.xLeft = rRect.x;
	197	vRect.xRight = rRect.x + rRect.width;
	198	vRect.yBottom = rRect.y;
	199	vRect.yTop = rRect.y + rRect.height;
	200
	201	m_refData = new wxRegionRefData;
	202
	203	//
	204	// Need a PS to create a Region
	205	//
	206	((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain
	207	,hDC
	208	,&vSize
	209	,PU_PELS \| GPIT_MICRO \| GPIA_ASSOC
	210	);
	211	M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS
	212	,1
	213	,&vRect
	214	);
	215	} // end of wxRegion::wxRegion
	216
	217	//
	218	// Destroy the region.
	219	//
0e320a79 DW	220	wxRegion::~wxRegion()
0e320a79 DW	221	{
8d854fa9	222	} // end of wxRegion::~wxRegion
0e320a79	223
58238121 DW	224	wxObjectRefData *wxRegion::CreateData() const
	225	{
	226	return new wxRegionRefData;
	227	}
	228
70b7bcd1	229	wxObjectRefData wxRegion::CloneData(const wxObjectRefData data) const
58238121 DW	230	{
	231	return new wxRegionRefData((wxRegionRefData )data);
	232	}
	233
0e320a79 DW	234	//-----------------------------------------------------------------------------
	235	//# Modify region
	236	//-----------------------------------------------------------------------------
	237
58238121 DW	238	bool wxRegion::Offset(
	239	wxCoord x
	240	, wxCoord y
	241	)
	242	{
	243	if ( !x && !y )
	244	{
	245	// nothing to do
	246	return TRUE;
	247	}
	248
	249	AllocExclusive();
	250
	251	#if 0
	252	if ( ::OffsetRgn(GetHrgn(), x, y) == ERROR )
	253	{
	254	wxLogLastError(_T("OffsetRgn"));
	255
	256	return FALSE;
	257	}
	258	#endif
	259	return TRUE;
	260	}
	261
8d854fa9 DW	262	//
	263	// Clear current region
	264	//
0e320a79 DW	265	void wxRegion::Clear()
	266	{
	267	UnRef();
8d854fa9 DW	268	} // end of wxRegion::Clear
	269
	270	//
	271	// Combine rectangle (x, y, w, h) with this.
	272	//
	273	bool wxRegion::Combine(
	274	wxCoord x
	275	, wxCoord y
	276	, wxCoord vWidth
	277	, wxCoord vHeight
	278	, wxRegionOp eOp
	279	)
0e320a79	280	{
6ed98c6a	281	return Combine(wxRegion(x, y, vWidth, vHeight), eOp);
8d854fa9 DW	282	} // end of wxRegion::Combine
	283
	284	//
	285	// Union region with this.
	286	//
	287	bool wxRegion::Combine(
	288	const wxRegion& rRegion
	289	, wxRegionOp eOp
	290	)
0e320a79	291	{
6ed98c6a DW	292	//
	293	// We can't use the API functions if we don't have a valid region handle
	294	//
	295	if (!m_refData)
	296	{
	297	// combining with an empty/invalid region works differently depending
	298	// on the operation
	299	switch (eOp)
	300	{
	301	case wxRGN_COPY:
	302	case wxRGN_OR:
	303	case wxRGN_XOR:
	304	*this = rRegion;
	305	break;
	306
	307	default:
	308	wxFAIL_MSG( _T("unknown region operation") );
	309	// fall through
	310
	311	case wxRGN_AND:
	312	case wxRGN_DIFF:
	313	// leave empty/invalid
	314	return FALSE;
	315	}
	316	}
	317	else // we have a valid region
	318	{
0e320a79	319
6ed98c6a	320	LONG lMode = 0;
8d854fa9	321
6ed98c6a DW	322	switch (eOp)
	323	{
	324	case wxRGN_AND:
	325	lMode = CRGN_AND;
	326	break;
	327
	328	case wxRGN_OR:
	329	lMode = CRGN_OR;
	330	break;
	331
	332	case wxRGN_XOR:
	333	lMode = CRGN_XOR;
	334	break;
	335
	336	case wxRGN_DIFF:
	337	lMode = CRGN_DIFF;
	338	break;
	339
	340	case wxRGN_COPY:
	341	default:
	342	lMode = CRGN_COPY;
	343	break;
	344	}
	345	return (::GpiCombineRegion( ((wxRegionRefData*)rRegion.m_refData)->m_hPS
	346	,M_REGION
	347	,M_REGION
	348	,((wxRegionRefData*)rRegion.m_refData)->m_hRegion
	349	,lMode
	350	) != RGN_ERROR);
0e320a79	351	}
6ed98c6a	352	return TRUE;
8d854fa9 DW	353	} // end of wxRegion::Combine
	354
	355	bool wxRegion::Combine(
	356	const wxRect& rRect
	357	, wxRegionOp eOp
	358	)
0e320a79	359	{
8d854fa9 DW	360	return Combine( rRect.GetLeft()
	361	,rRect.GetTop()
	362	,rRect.GetWidth()
	363	,rRect.GetHeight()
	364	,eOp
	365	);
	366	} // end of wxRegion::Combine
0e320a79 DW	367
	368	//-----------------------------------------------------------------------------
	369	//# Information on region
	370	//-----------------------------------------------------------------------------
	371
8d854fa9	372	//
0e320a79	373	// Outer bounds of region
8d854fa9 DW	374	//
	375	void wxRegion::GetBox(
	376	wxCoord& x
	377	, wxCoord& y
	378	, wxCoord& vWidth
	379	, wxCoord& vHeight
	380	) const
0e320a79	381	{
8d854fa9 DW	382	if (m_refData)
	383	{
	384	RECTL vRect;
19193a2c	385	APIRET rc;
8d854fa9	386
19193a2c	387	rc = ::GpiQueryRegionBox( ((wxRegionRefData*)m_refData)->m_hPS
8d854fa9 DW	388	,M_REGION
	389	,&vRect
	390	);
	391	x = vRect.xLeft;
4a46a5df	392	y = vRect.yBottom;
8d854fa9 DW	393	vWidth = vRect.xRight - vRect.xLeft;
8d854fa9 DW	394	vHeight = vRect.yTop - vRect.yBottom;
409c9842	395	}
8d854fa9 DW	396	else
	397	{
	398	x = y = vWidth = vHeight = 0L;
	399	}
	400	} // end of wxRegion::GetBox
0e320a79 DW	401
	402	wxRect wxRegion::GetBox() const
	403	{
0b7e7739	404	wxCoord x, y, w, h;
0e320a79 DW	405	GetBox(x, y, w, h);
	406	return wxRect(x, y, w, h);
	407	}
	408
8d854fa9	409	//
0e320a79	410	// Is region empty?
8d854fa9	411	//
0e320a79 DW	412	bool wxRegion::Empty() const
0e320a79 DW	413	{
8d854fa9 DW	414	wxCoord x;
	415	wxCoord y;
	416	wxCoord vWidth;
	417	wxCoord vHeight;
	418
	419	if (M_REGION == 0)
	420	return TRUE;
	421
	422	GetBox( x
	423	,y
	424	,vWidth
	425	,vHeight
	426	);
	427	return ((vWidth == 0) && (vHeight == 0));
	428	} // end of wxRegion::Empty
0e320a79 DW	429
0e320a79 DW	430	//-----------------------------------------------------------------------------
8d854fa9	431	// Tests
0e320a79 DW	432	//-----------------------------------------------------------------------------
0e320a79 DW	433
8d854fa9	434	//
0e320a79	435	// Does the region contain the point (x,y)?
8d854fa9 DW	436	wxRegionContain wxRegion::Contains(
	437	wxCoord x
	438	, wxCoord y
	439	) const
0e320a79	440	{
8d854fa9 DW	441	bool bOK = FALSE;
	442	POINTL vPoint;
	443
	444	vPoint.x = x;
	445	vPoint.y = y;
	446
409c9842 DW	447	if (!m_refData)
409c9842 DW	448	return wxOutRegion;
0e320a79	449
8d854fa9 DW	450	LONG lInside = ::GpiPtInRegion( ((wxRegionRefData*)m_refData)->m_hPS
	451	,M_REGION
	452	,&vPoint
	453	);
	454	if (lInside == PRGN_INSIDE)
0e320a79 DW	455	return wxInRegion;
0e320a79 DW	456	return wxOutRegion;
8d854fa9	457	} // end of wxRegion::Contains
0e320a79	458
8d854fa9	459	//
0e320a79	460	// Does the region contain the point pt?
8d854fa9 DW	461	//
	462	wxRegionContain wxRegion::Contains(
	463	const wxPoint& rPoint
	464	) const
0e320a79	465	{
8d854fa9 DW	466	POINTL vPoint = { rPoint.x, rPoint.y };
8d854fa9 DW	467
409c9842 DW	468	if (!m_refData)
409c9842 DW	469	return wxOutRegion;
0e320a79	470
8d854fa9 DW	471	LONG lInside = ::GpiPtInRegion( ((wxRegionRefData*)m_refData)->m_hPS
	472	,M_REGION
	473	,&vPoint
	474	);
	475	if (lInside == PRGN_INSIDE)
0e320a79 DW	476	return wxInRegion;
	477	else
	478	return wxOutRegion;
8d854fa9	479	} // end of wxRegion::Contains
0e320a79	480
8d854fa9	481	//
0e320a79	482	// Does the region contain the rectangle (x, y, w, h)?
8d854fa9 DW	483	//
	484	wxRegionContain wxRegion::Contains(
	485	wxCoord x
	486	, wxCoord y
	487	, wxCoord vWidth
	488	, wxCoord vHeight
	489	) const
0e320a79	490	{
8d854fa9 DW	491	RECTL vRect;
8d854fa9 DW	492
409c9842 DW	493	if (!m_refData)
409c9842 DW	494	return wxOutRegion;
0e320a79	495
8d854fa9 DW	496	vRect.xLeft = x;
	497	vRect.yTop = y;
	498	vRect.xRight = x + vWidth;
	499	vRect.yBottom = y + vHeight;
	500
	501	if (PRGN_INSIDE == ::GpiRectInRegion( ((wxRegionRefData*)m_refData)->m_hPS
	502	,M_REGION
	503	,&vRect
	504	))
0e320a79 DW	505	return wxInRegion;
	506	else
	507	return wxOutRegion;
8d854fa9	508	} // end of wxRegion::Contains
0e320a79	509
8d854fa9	510	//
0e320a79	511	// Does the region contain the rectangle rect
8d854fa9 DW	512	//
	513	wxRegionContain wxRegion::Contains(
	514	const wxRect& rRect
	515	) const
0e320a79	516	{
409c9842 DW	517	if (!m_refData)
409c9842 DW	518	return wxOutRegion;
0e320a79	519
8d854fa9 DW	520	wxCoord x;
	521	wxCoord y;
	522	wxCoord vWidth;
	523	wxCoord vHeight;
	524
	525	x = rRect.x;
	526	y = rRect.y;
	527	vWidth = rRect.GetWidth();
	528	vHeight = rRect.GetHeight();
	529	return Contains( x
	530	,y
	531	,vWidth
	532	,vHeight
	533	);
	534	} // end of wxRegion::Contains
	535
	536	//
409c9842	537	// Get internal region handle
8d854fa9	538	//
409c9842 DW	539	WXHRGN wxRegion::GetHRGN() const
	540	{
	541	if (!m_refData)
	542	return (WXHRGN) 0;
	543	return (WXHRGN) M_REGION;
	544	}
	545
44227537 DW	546	//
	547	// Set a new PS, this means we have to recreate the old region in the new
	548	// PS
	549	//
	550	void wxRegion::SetPS(
	551	HPS hPS
	552	)
	553	{
	554	RGNRECT vRgnData;
	555	PRECTL pRect = NULL;
	556
	557	if (::GpiQueryRegionRects( ((wxRegionRefData*)m_refData)->m_hPS
	558	,((wxRegionRefData*)m_refData)->m_hRegion
	559	,NULL
	560	,&vRgnData
	561	,NULL
	562	))
	563	{
	564	pRect = new RECTL[vRgnData.crcReturned];
	565	vRgnData.crc = vRgnData.crcReturned;
	566	vRgnData.ircStart = 1;
	567	if (::GpiQueryRegionRects( ((wxRegionRefData*)m_refData)->m_hPS
	568	,((wxRegionRefData*)m_refData)->m_hRegion
	569	,NULL
	570	,&vRgnData
	571	,pRect
	572	))
	573	{
	574	//
	575	// First destroy the region out of the old PS
	576	// and then create it in the new and set the new to current
	577	//
	578	::GpiDestroyRegion( ((wxRegionRefData*)m_refData)->m_hPS
	579	,M_REGION
	580	);
	581	((wxRegionRefData*)m_refData)->m_hRegion = ::GpiCreateRegion( hPS
	582	,vRgnData.crcReturned
	583	,pRect
	584	);
	585	((wxRegionRefData*)m_refData)->m_hPS = hPS;
	586	}
	587	delete [] pRect;
	588	}
	589	} // end of wxRegion::SetPS
	590
0e320a79	591	///////////////////////////////////////////////////////////////////////////////
409c9842 DW	592	// //
	593	// wxRegionIterator //
	594	// //
0e320a79 DW	595	///////////////////////////////////////////////////////////////////////////////
0e320a79 DW	596
8d854fa9 DW	597	//
	598	// Initialize empty iterator
	599	//
	600	wxRegionIterator::wxRegionIterator()
	601	: m_lCurrent(0)
	602	, m_lNumRects(0)
	603	, m_pRects(NULL)
0e320a79	604	{
8d854fa9	605	} // end of wxRegionIterator::wxRegionIterator
0e320a79 DW	606
	607	wxRegionIterator::~wxRegionIterator()
	608	{
8d854fa9 DW	609	if (m_pRects)
	610	delete[] m_pRects;
	611	} // end of wxRegionIterator::~wxRegionIterator
	612
	613	//
	614	// Initialize iterator for region
	615	//
	616	wxRegionIterator::wxRegionIterator(
	617	const wxRegion& rRegion
	618	)
0e320a79	619	{
8d854fa9 DW	620	m_pRects = NULL;
	621	Reset(rRegion);
	622	} // end of wxRegionIterator::wxRegionIterator
	623
	624	//
	625	// Reset iterator for a new /e region.
	626	//
	627	void wxRegionIterator::Reset(
	628	const wxRegion& rRegion
	629	)
0e320a79	630	{
8d854fa9 DW	631	m_lCurrent = 0;
8d854fa9 DW	632	m_vRegion = rRegion;
0e320a79	633
8d854fa9 DW	634	if (m_pRects)
8d854fa9 DW	635	delete[] m_pRects;
0e320a79	636
8d854fa9	637	m_pRects = NULL;
0e320a79	638
8d854fa9 DW	639	if (m_vRegion.Empty())
8d854fa9 DW	640	m_lNumRects = 0;
409c9842	641	else
0e320a79	642	{
8d854fa9 DW	643	RGNRECT vRgnData;
	644	PRECTL pRect;
	645
	646	if (::GpiQueryRegionRects( ((wxRegionRefData*)rRegion.m_refData)->m_hPS // Pres space
	647	,((wxRegionRefData*)rRegion.m_refData)->m_hRegion // Handle of region to query
	648	,NULL // Return all RECTs
	649	,&vRgnData // Will contain number or RECTs in region
	650	,NULL // NULL to return number of RECTs
	651	))
	652	{
	653	pRect = new RECTL[vRgnData.crcReturned];
	654	m_pRects = new wxRect[vRgnData.crcReturned];
	655	vRgnData.crc = vRgnData.crcReturned;
	656	m_lNumRects = vRgnData.crcReturned;
	657	vRgnData.ircStart = 1;
	658	if (::GpiQueryRegionRects( ((wxRegionRefData*)rRegion.m_refData)->m_hPS // Pres space of source
	659	,((wxRegionRefData*)rRegion.m_refData)->m_hRegion // Handle of source region
	660	,NULL // Return all RECTs
	661	,&vRgnData // Operations set to return rects
	662	,pRect // Will contain the actual RECTS
	663	))
	664	{
	665	M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)rRegion.m_refData)->m_hPS
	666	,vRgnData.crcReturned
	667	,pRect
	668	);
	669	for( LONG i = 0; i < m_lNumRects; i++)
	670	{
	671	m_pRects[i].x = pRect[i].xLeft;
	672	m_pRects[i].width = pRect[i].xRight - pRect[i].xLeft;
	673	m_pRects[i].y = pRect[i].yBottom;
	674	m_pRects[i].height = pRect[i].yTop - pRect[i].yBottom;
	675	}
	676	((wxRegionRefData)m_refData)->m_hPS = ((wxRegionRefData)rRegion.m_refData)->m_hPS;
	677	}
	678	}
0e320a79	679	}
8d854fa9	680	} // end of wxRegionIterator::Reset
0e320a79	681
8d854fa9 DW	682	//
	683	// Increment iterator. The rectangle returned is the one after the
	684	// incrementation.
	685	//
	686	void wxRegionIterator::operator++ ()
0e320a79	687	{
8d854fa9 DW	688	if (m_lCurrent < m_lNumRects)
	689	++m_lCurrent;
	690	} // end of wxRegionIterator::operator ++
	691
	692	//
	693	// Increment iterator. The rectangle returned is the one before the
	694	// incrementation.
	695	//
	696	void wxRegionIterator::operator++ (int)
0e320a79	697	{
8d854fa9 DW	698	if (m_lCurrent < m_lNumRects)
	699	++m_lCurrent;
	700	} // end of wxRegionIterator::operator++
0e320a79	701
0b7e7739	702	wxCoord wxRegionIterator::GetX() const
0e320a79	703	{
8d854fa9 DW	704	if (m_lCurrent < m_lNumRects)
	705	return m_pRects[m_lCurrent].x;
	706	return 0L;
	707	} // end of wxRegionIterator::GetX
0e320a79	708
0b7e7739	709	wxCoord wxRegionIterator::GetY() const
0e320a79	710	{
8d854fa9 DW	711	if (m_lCurrent < m_lNumRects)
	712	return m_pRects[m_lCurrent].y;
	713	return 0L;
	714	} // end of wxRegionIterator::GetY
0e320a79	715
0b7e7739	716	wxCoord wxRegionIterator::GetW() const
0e320a79	717	{
8d854fa9 DW	718	if (m_lCurrent < m_lNumRects)
	719	return m_pRects[m_lCurrent].width ;
	720	return 0L;
	721	} // end of wxRegionIterator::GetW
0e320a79	722
0b7e7739	723	wxCoord wxRegionIterator::GetH() const
0e320a79	724	{
8d854fa9 DW	725	if (m_lCurrent < m_lNumRects)
	726	return m_pRects[m_lCurrent].height;
	727	return 0L;
	728	} // end of wxRegionIterator::GetH
0e320a79	729