more wxListCtrl drawing fixes - scrolling still doesn't work under wxGTK

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

diff --git a/src/os2/dc.cpp b/src/os2/dc.cpp
index 5ddf11b13b7a53488142ebf7ad1128c67d3d74f8..7ac6173a99267f92fbd6aad37bb998ca33fe1301 100644 (file)
--- a/src/os2/dc.cpp
+++ b/src/os2/dc.cpp
@@ -22,6 +22,7 @@
     #include "wx/dcmemory.h"
     #include "wx/log.h"
     #include "wx/icon.h"
     #include "wx/dcmemory.h"
     #include "wx/log.h"
     #include "wx/icon.h"

+    #include "wx/msgdlg.h"

 #endif
 
 #include "wx/dcprint.h"
 #endif
 
 #include "wx/dcprint.h"


@@ -33,6 +34,27 @@
 
     IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
 
 
     IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
 

+//
+// wxWindows uses the Microsoft convention that the origin is the UPPER left.
+// Native OS/2 however in the GPI and PM define the origin as the LOWER left.
+// In order to map OS/2 GPI/PM y coordinates to wxWindows coordinates we must
+// perform the following transformation:
+//
+// Parent object height:     POBJHEIGHT
+// Desried origin:           WXORIGINY
+// Object to place's height: OBJHEIGHT
+//
+// To get the OS2 position from the wxWindows one:
+//
+// OS2Y = POBJHEIGHT - (WXORIGINY + OBJHEIGHT)
+//
+// For OS/2 wxDC's we will always determine m_vRclPaint as the size of the
+// OS/2 Presentation Space associated with the device context.  y is the
+// desired application's y coordinate of the origin in wxWindows space.
+// objy is the height of the object we are going to draw.
+//
+#define OS2Y(y, objy) ((m_vRclPaint.yTop - m_vRclPaint.yBottom) - (y + objy))
+

 // ---------------------------------------------------------------------------
 // constants
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // constants
 // ---------------------------------------------------------------------------


@@ -133,6 +155,8 @@ int SetBkMode(
 
 wxDC::wxDC(void)
 {
 
 wxDC::wxDC(void)
 {

+    wxColour                        vColor;
+

     m_pCanvas      = NULL;
 
     m_hOldBitmap   = 0;
     m_pCanvas      = NULL;
 
     m_hOldBitmap   = 0;


@@ -143,52 +167,71 @@ wxDC::wxDC(void)
 
     m_bOwnsDC      = FALSE;
     m_hDC          = 0;
 
     m_bOwnsDC      = FALSE;
     m_hDC          = 0;

-    m_nDCCount     = 0;

     m_hOldPS       = NULL;
     m_hPS          = NULL;
     m_hOldPS       = NULL;
     m_hPS          = NULL;

-    m_bIsPaintTime = FALSE;// True at Paint Time
-};
+    m_bIsPaintTime = FALSE; // True at Paint Time
+
+    vColor.InitFromName("BLACK");
+    m_pen.SetColour(vColor);
+    vColor.Set("WHITE");
+    m_brush.SetColour(vColor);
+} // end of wxDC::wxDC

 
 wxDC::~wxDC(void)
 {
 
 wxDC::~wxDC(void)
 {

-    // TODO:
-};
+    if ( m_hDC != 0 )
+    {
+        SelectOldObjects(m_hDC);
+
+        // if we own the HDC, we delete it, otherwise we just release it
+
+        if (m_bOwnsDC)
+        {
+            if(m_hPS)
+            {
+                ::GpiAssociate(m_hPS, NULLHANDLE);
+                ::GpiDestroyPS(m_hPS);
+            }
+            m_hPS = NULLHANDLE;
+            ::DevCloseDC((HDC)m_hDC);
+        }
+        else
+        {
+            //
+            // Just Dissacociate, not destroy if we don't own the DC
+            //
+            if(m_hPS)
+            {
+                ::GpiAssociate(m_hPS, NULLHANDLE);
+            }
+        }
+    }
+} // end of wxDC::~wxDC

 
 // This will select current objects out of the DC,
 // which is what you have to do before deleting the
 // DC.
 
 // This will select current objects out of the DC,
 // which is what you have to do before deleting the
 // DC.

-void wxDC::SelectOldObjects(WXHDC dc)
+void wxDC::SelectOldObjects(
+  WXHDC                             hPS
+)

 {
 {

-    if (dc)
+    if (hPS)

     {
         if (m_hOldBitmap)
         {
     {
         if (m_hOldBitmap)
         {

-//            ::SelectObject((HDC) dc, (HBITMAP) m_oldBitmap);
+            ::GpiSetBitmap(hPS, (HBITMAP) m_hOldBitmap);

             if (m_vSelectedBitmap.Ok())
             {
                 m_vSelectedBitmap.SetSelectedInto(NULL);
             }
         }
         m_hOldBitmap = 0;
             if (m_vSelectedBitmap.Ok())
             {
                 m_vSelectedBitmap.SetSelectedInto(NULL);
             }
         }
         m_hOldBitmap = 0;

-        if (m_hOldPen)
-        {
-//            ::SelectObject((HDC) dc, (HPEN) m_oldPen);
-        }
+        //
+        // OS/2 has no other native GDI objects to set in a PS/DC like windows
+        //

         m_hOldPen = 0;
         m_hOldPen = 0;

-        if (m_hOldBrush)
-        {
-//            ::SelectObject((HDC) dc, (HBRUSH) m_oldBrush);
-        }

         m_hOldBrush = 0;
         m_hOldBrush = 0;

-        if (m_hOldFont)
-        {
-//            ::SelectObject((HDC) dc, (HFONT) m_oldFont);
-        }

         m_hOldFont = 0;
         m_hOldFont = 0;

-        if (m_hOldPalette)
-        {
-//            ::SelectPalette((HDC) dc, (HPALETTE) m_oldPalette, TRUE);
-        }

         m_hOldPalette = 0;
     }
 
         m_hOldPalette = 0;
     }
 


@@ -198,40 +241,80 @@ void wxDC::SelectOldObjects(WXHDC dc)
     m_font            = wxNullFont;
     m_backgroundBrush = wxNullBrush;
     m_vSelectedBitmap = wxNullBitmap;
     m_font            = wxNullFont;
     m_backgroundBrush = wxNullBrush;
     m_vSelectedBitmap = wxNullBitmap;

-}
+} // end of wxDC::SelectOldObjects

 
 // ---------------------------------------------------------------------------
 // clipping
 // ---------------------------------------------------------------------------
 
 
 // ---------------------------------------------------------------------------
 // clipping
 // ---------------------------------------------------------------------------
 

-#define DO_SET_CLIPPING_BOX()                   \
-{                                               \
-    RECT rect;                                  \
-                                                \
-    GetClipBox(GetHdc(), &rect);                \
-                                                \
-    m_clipX1 = (wxCoord) XDEV2LOG(rect.left);   \
-    m_clipY1 = (wxCoord) YDEV2LOG(rect.top);    \
-    m_clipX2 = (wxCoord) XDEV2LOG(rect.right);  \
-    m_clipY2 = (wxCoord) YDEV2LOG(rect.bottom); \
+#define DO_SET_CLIPPING_BOX()                    \
+{                                                \
+    RECTL rect;                                  \
+                                                 \
+    ::GpiQueryClipBox(m_hPS, &rect);             \
+                                                 \
+    m_clipX1 = (wxCoord) XDEV2LOG(rect.xLeft);   \
+    m_clipY1 = (wxCoord) YDEV2LOG(rect.yTop);    \
+    m_clipX2 = (wxCoord) XDEV2LOG(rect.xRight);  \
+    m_clipY2 = (wxCoord) YDEV2LOG(rect.yBottom); \

 }
 
 }
 

-void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y
-                               ,wxCoord width, wxCoord height
-                              )
+void wxDC::DoSetClippingRegion(
+  wxCoord                           vX
+, wxCoord                           vY
+, wxCoord                           vWidth
+, wxCoord                           vHeight
+)

 {
 {

-   // TODO
-}
+    RECTL                           vRect;
+
+    vY = OS2Y(vY,vHeight);
+    m_clipping    = TRUE;
+    vRect.xLeft   = vX;
+    vRect.yTop    = vY + vHeight;
+    vRect.xRight  = vX + vWidth;
+    vRect.yBottom = vY;
+    ::GpiIntersectClipRectangle(m_hPS, &vRect);
+    DO_SET_CLIPPING_BOX()
+} // end of wxDC::DoSetClippingRegion

 
 

-void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
+void wxDC::DoSetClippingRegionAsRegion(
+  const wxRegion&                   rRegion
+)

 {
 {

-   // TODO
-}
+     wxCHECK_RET(rRegion.GetHRGN(), wxT("invalid clipping region"));
+     HRGN                           hRgnOld;
+
+     m_clipping = TRUE;
+     ::GpiSetClipRegion( m_hPS
+                        ,(HRGN)rRegion.GetHRGN()
+                        ,&hRgnOld
+                       );
+    DO_SET_CLIPPING_BOX()
+} // end of wxDC::DoSetClippingRegionAsRegion

 
 void wxDC::DestroyClippingRegion(void)
 {
 
 void wxDC::DestroyClippingRegion(void)
 {

-    // TODO:
-};
+    if (m_clipping && m_hPS)
+    {
+         HRGN                       hRgnOld;
+         RECTL                      vRect;
+
+         // TODO: this should restore the previous clipped region
+         //       so that OnPaint processing works correctly, and
+         //       the update doesn't get destroyed after the first
+         //       DestroyClippingRegion
+         vRect.xLeft   = XLOG2DEV(0);
+         vRect.yTop    = YLOG2DEV(32000);
+         vRect.xRight  = XLOG2DEV(32000);
+         vRect.yBottom = YLOG2DEV(0);
+
+         HRGN                       hRgn = ::GpiCreateRegion(m_hPS, 1, &vRect);
+
+         ::GpiSetClipRegion(m_hPS, hRgn, &hRgnOld);
+     }
+      m_clipping = FALSE;
+} // end of wxDC::DestroyClippingRegion

 
 // ---------------------------------------------------------------------------
 // query capabilities
 
 // ---------------------------------------------------------------------------
 // query capabilities


@@ -244,18 +327,27 @@ bool wxDC::CanDrawBitmap() const
 
 bool wxDC::CanGetTextExtent() const
 {
 
 bool wxDC::CanGetTextExtent() const
 {

-    // What sort of display is it?
-    int technology = 0; // TODO:  ::GetDeviceCaps(GetHdc(), TECHNOLOGY);
+    LONG                            lTechnology = 0L;

 
 

-    // TODO: return (technology == DT_RASDISPLAY) || (technology == DT_RASPRINTER);
-    return FALSE;
-}
+    ::DevQueryCaps(GetHDC(), CAPS_TECHNOLOGY, 1L, &lTechnology);
+    return (lTechnology == CAPS_TECH_RASTER_DISPLAY) || (lTechnology == CAPS_TECH_RASTER_PRINTER);
+} // end of wxDC::CanGetTextExtent

 
 int wxDC::GetDepth() const
 {
 
 int wxDC::GetDepth() const
 {

-   // TODO:
-   return (1);
-}
+    LONG                            lArray[CAPS_COLOR_BITCOUNT];
+    int                             nBitsPerPixel;
+
+    if(::DevQueryCaps( GetHDC()
+                      ,CAPS_FAMILY
+                      ,CAPS_COLOR_BITCOUNT
+                      ,lArray
+                     ))
+    {
+        nBitsPerPixel = (int)lArray[CAPS_COLOR_BITCOUNT];
+    }
+    return nBitsPerPixel;
+} // end of wxDC::GetDepth

 
 // ---------------------------------------------------------------------------
 // drawing
 
 // ---------------------------------------------------------------------------
 // drawing


@@ -263,28 +355,98 @@ int wxDC::GetDepth() const
 
 void wxDC::Clear()
 {
 
 void wxDC::Clear()
 {

-   // TODO
-}
+    ::GpiErase(m_hPS);
+} // end of wxDC::Clear

 
 

-void wxDC::DoFloodFill( wxCoord x
-                       ,wxCoord y
-                       ,const wxColour& col
-                       ,int style
-                      )
+void wxDC::DoFloodFill(
+  wxCoord                           vX
+, wxCoord                           vY
+, const wxColour&                   rCol
+, int                               nStyle
+)

 {
 {

-   // TODO
-}
+    POINTL                          vPtlPos;
+    LONG                            lColor;
+    LONG                            lOptions;
+
+    vPtlPos.x = vX;             // Loads x-coordinate
+    vPtlPos.y = OS2Y(vY,0);     // Loads y-coordinate
+    ::GpiMove(m_hPS, &vPtlPos); // Sets current position
+    lColor = rCol.GetPixel();
+    lOptions = FF_BOUNDARY;
+    if(wxFLOOD_SURFACE == nStyle)
+        lOptions = FF_SURFACE;
+
+    ::GpiFloodFill(m_hPS, lOptions, lColor);
+} // end of wxDC::DoFloodFill

 
 

-bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
+bool wxDC::DoGetPixel(
+  wxCoord                           vX
+, wxCoord                           vY
+, wxColour*                         pCol
+) const

 {
 {

-   // TODO
-   return(TRUE);
-}
+    POINTL                          vPoint;
+    LONG                            lColor;
+
+    vPoint.x = vX;
+    vPoint.y = OS2Y(vY,0);
+    lColor = ::GpiSetPel(m_hPS, &vPoint);
+
+    //
+    // Get the color of the pen
+    //
+    LONG                            lPencolor = 0x00ffffff;
+
+    if (m_pen.Ok())
+    {
+        lPencolor = m_pen.GetColour().GetPixel();
+    }

 
 

-void wxDC::DoCrossHair(wxCoord x, wxCoord y)
+    //
+    // return the color of the pixel
+    //
+    if(pCol)
+        pCol->Set( GetRValue(lColor)
+                  ,GetGValue(lColor)
+                  ,GetBValue(lColor)
+                 );
+    return(lColor == lPencolor);
+} // end of wxDC::DoGetPixel
+
+void wxDC::DoCrossHair(
+  wxCoord                           vX
+, wxCoord                           vY
+)

 {
 {

-   // TODO
-}
+    vY = OS2Y(vY,0);
+
+    wxCoord                         vX1 = vX - VIEWPORT_EXTENT;
+    wxCoord                         vY1 = vY - VIEWPORT_EXTENT;
+    wxCoord                         vX2 = vX + VIEWPORT_EXTENT;
+    wxCoord                         vY2 = vY + VIEWPORT_EXTENT;
+    POINTL                          vPoint[4];
+
+    vPoint[0].x = vX1;
+    vPoint[0].y = vY;
+
+    vPoint[1].x = vX2;
+    vPoint[1].y = vY;
+
+    ::GpiMove(m_hPS, &vPoint[0]);
+    ::GpiLine(m_hPS, &vPoint[1]);
+
+    vPoint[2].x = vX;
+    vPoint[2].y = vY1;
+
+    vPoint[3].x = vX;
+    vPoint[3].y = vY2;
+
+    ::GpiMove(m_hPS, &vPoint[2]);
+    ::GpiLine(m_hPS, &vPoint[3]);
+    CalcBoundingBox(vX1, vY1);
+    CalcBoundingBox(vX2, vY2);
+} // end of wxDC::DoCrossHair

 
 void wxDC::DoDrawLine(
   wxCoord                           vX1
 
 void wxDC::DoDrawLine(
   wxCoord                           vX1


@@ -295,48 +457,310 @@ void wxDC::DoDrawLine(
 {
     POINTL                          vPoint[2];
 
 {
     POINTL                          vPoint[2];
 

+    vY1 = OS2Y(vY1,0);
+    vY2 = OS2Y(vY2,0);
+

     vPoint[0].x = vX1;
     vPoint[0].y = vY1;
     vPoint[1].x = vX2;
     vPoint[1].y = vY2;
     vPoint[0].x = vX1;
     vPoint[0].y = vY1;
     vPoint[1].x = vX2;
     vPoint[1].y = vY2;

-    // ::GpiSetColor(m_hPS,CLR_RED); //DEbug

     ::GpiMove(m_hPS, &vPoint[0]);
     ::GpiLine(m_hPS, &vPoint[1]);
     ::GpiMove(m_hPS, &vPoint[0]);
     ::GpiLine(m_hPS, &vPoint[1]);

-}
-
-void wxDC::DoDrawArc( wxCoord x1, wxCoord y1
-                     ,wxCoord x2, wxCoord y2
-                     ,wxCoord xc, wxCoord yc
-                    )
+    CalcBoundingBox(vX1, vY1);
+    CalcBoundingBox(vX2, vY2);
+} // end of wxDC::DoDrawLine
+
+//////////////////////////////////////////////////////////////////////////////
+// Draws an arc of a circle, centred on (xc, yc), with starting point (x1, y1)
+// and ending at (x2, y2). The current pen is used for the outline and the
+// current brush for filling the shape. The arc is drawn in an anticlockwise
+// direction from the start point to the end point.
+//////////////////////////////////////////////////////////////////////////////
+void wxDC::DoDrawArc(
+  wxCoord                           vX1
+, wxCoord                           vY1
+, wxCoord                           vX2
+, wxCoord                           vY2
+, wxCoord                           vXc
+, wxCoord                           vYc
+)

 {
 {

-   // TODO
-}
+     POINTL                         vPtlPos;
+     POINTL                         vPtlArc[2]; // Structure for current position
+     int                            nDx;
+     int                            nDy;
+     double                         dRadius;
+     double                         dAngl1;
+     double                         dAngl2;
+     double                         dAnglmid;
+     wxCoord                        vXm;
+     wxCoord                        vYm;
+     ARCPARAMS                      vArcp; // Structure for arc parameters
+
+    if((vX1 == vXc && vY1 == vXc) || (vX2 == vXc && vY2 == vXc))
+        return; // Draw point ??
+    dRadius = 0.5 * ( hypot( (double)(vY1 - vYc)
+                            ,(double)(vX1 - vXc)
+                           ) +
+                      hypot( (double)(vY2 - vYc)
+                            ,(double)(vX2 - vXc)
+                           )
+                     );
+
+    dAngl1 = atan2( (double)(vY1 - vYc)
+                   ,(double)(vX1 - vXc)
+                  );
+    dAngl2 = atan2( (double)(vY2 - vYc)
+                   ,(double)(vX2 - vXc)
+                  );
+    if(dAngl2 < dAngl1)
+        dAngl2 += M_PI * 2;
+
+    //
+    // GpiPointArc can't draw full arc
+    //
+     if(dAngl2 == dAngl1 || (vX1 == vX2 && vY1 == vY2) )
+     {
+        //
+        // Medium point
+        //
+        dAnglmid = (dAngl1 + dAngl2)/2. + M_PI;
+        vXm      = vXc + dRadius * cos(dAnglmid);
+        vYm      = vYc + dRadius * sin(dAnglmid);
+        DoDrawArc( vX1, vY1
+                  ,vXm, vYm
+                  ,vXc, vYc
+                 );
+        DoDrawArc( vXm, vYm
+                  ,vX2, vY2
+                  ,vXc, vYc
+                 );
+        return;
+    }
+
+    //
+    // Medium point
+    //
+    dAnglmid = (dAngl1 + dAngl2)/2.;
+    vXm      = vXc + dRadius * cos(dAnglmid);
+    vYm      = vYc + dRadius * sin(dAnglmid);

 
 

-void wxDC::DoDrawCheckMark(wxCoord x1, wxCoord y1,
-                           wxCoord width, wxCoord height)
+    //
+    // Ellipse main axis (r,q), (p,s) with center at (0,0) */
+    //
+    vArcp.lR = 0;
+    vArcp.lQ = 1;
+    vArcp.lP = 1;
+    vArcp.lS = 0;
+    ::GpiSetArcParams(m_hPS, &vArcp); // Sets parameters to default
+
+    vPtlPos.x = vX1; // Loads x-coordinate
+    vPtlPos.y = vY1; // Loads y-coordinate
+    ::GpiMove(m_hPS, &vPtlPos); // Sets current position
+    vPtlArc[0].x = vXm;
+    vPtlArc[0].y = vYm;
+    vPtlArc[1].x = vX2;
+    vPtlArc[1].y = vY2;
+    ::GpiPointArc(m_hPS, vPtlArc); // Draws the arc
+    CalcBoundingBox( (vXc - dRadius)
+                    ,(vYc - dRadius)
+                   );
+    CalcBoundingBox( (vXc + dRadius)
+                    ,(vYc + dRadius)
+                   );
+} // end of wxDC::DoDrawArc
+
+void wxDC::DoDrawCheckMark(
+  wxCoord                           vX1
+, wxCoord                           vY1
+, wxCoord                           vWidth
+, wxCoord                           vHeight
+)

 {
 {

-    // TODO
-}
+    POINTL                          vPoint[2];
+
+    vY1 = OS2Y(vY1,vHeight);
+
+    vPoint[0].x = vX1;
+    vPoint[0].y = vY1;
+    vPoint[1].x = vX1 + vWidth;
+    vPoint[1].y = vY1 + vHeight;
+
+    ::GpiMove(m_hPS, &vPoint[0]);
+    ::GpiBox( m_hPS       // handle to a presentation space
+             ,DRO_OUTLINE // draw the box outline ? or ?
+             ,&vPoint[1]  // address of the corner
+             ,0L          // horizontal corner radius
+             ,0L          // vertical corner radius
+            );
+    if(vWidth > 4 && vHeight > 4)
+    {
+        int                         nTmp;
+
+        vPoint[0].x += 2; vPoint[0].y += 2;
+        vPoint[1].x -= 2; vPoint[1].y -= 2;
+        ::GpiMove(m_hPS, &vPoint[0]);
+        ::GpiLine(m_hPS, &vPoint[1]);
+        nTmp = vPoint[0].x;
+        vPoint[0].x = vPoint[1].x;
+        vPoint[1].x = nTmp;
+        ::GpiMove(m_hPS, &vPoint[0]);
+        ::GpiLine(m_hPS, &vPoint[1]);
+    }
+    CalcBoundingBox( vX1
+                    ,vY1
+                   );
+
+    wxCoord                         vX2 = vX1 + vWidth;
+    wxCoord                         vY2 = vY1 + vHeight;
+
+    CalcBoundingBox( vX2
+                    ,vY2
+                   );
+} // end of wxDC::DoDrawCheckMark

 
 

-void wxDC::DoDrawPoint(wxCoord x, wxCoord y)
+void wxDC::DoDrawPoint(
+  wxCoord                           vX
+, wxCoord                           vY
+)

 {
 {

-   // TODO
-}
+    POINTL                          vPoint;
+    COLORREF                        vColor = 0x00ffffff;

 
 

-void wxDC::DoDrawPolygon(int n, wxPoint points[]
-                         ,wxCoord xoffset, wxCoord yoffset
-                         ,int fillStyle
-                        )
+    if (m_pen.Ok())
+    {
+        vColor = m_pen.GetColour().GetPixel();
+    }
+    ::GpiSetColor(m_hPS, vColor);
+    vPoint.x = vX;
+    vPoint.y = OS2Y(vY,0);
+    ::GpiSetPel(m_hPS, &vPoint);
+    CalcBoundingBox( vX
+                    ,vY
+                   );
+} // end of wxDC::DoDrawPoint
+
+void wxDC::DoDrawPolygon(
+  int                               n
+, wxPoint                           vPoints[]
+, wxCoord                           vXoffset
+, wxCoord                           vYoffset
+, int                               nFillStyle
+)

 {
 {

-   // TODO
-}
+    ULONG                           ulCount = 1;    // Number of polygons.
+    POLYGON                         vPlgn;          // polygon.
+    ULONG                           flOptions = 0L; // Drawing options.
+
+//////////////////////////////////////////////////////////////////////////////
+// This contains fields of option bits... to draw boundary lines as well as
+// the area interior.
+//
+// Drawing boundary lines:
+//   POLYGON_NOBOUNDARY              Does not draw boundary lines.
+//   POLYGON_BOUNDARY                Draws boundary lines (the default).
+//
+// Construction of the area interior:
+//   POLYGON_ALTERNATE               Constructs interior in alternate mode
+//                                   (the default).
+//   POLYGON_WINDING                 Constructs interior in winding mode.
+//////////////////////////////////////////////////////////////////////////////
+
+    ULONG                           flModel = 0L; // Drawing model.
+
+//////////////////////////////////////////////////////////////////////////////
+// Drawing model.
+//   POLYGON_INCL  Fill is inclusive of bottom right (the default).
+//   POLYGON_EXCL  Fill is exclusive of bottom right.
+//       This is provided to aid migration from other graphics models.
+//////////////////////////////////////////////////////////////////////////////
+
+    LONG                            lHits = 0L; // Correlation/error indicator.
+    POINTL                          vPoint;
+    int                             i;
+    int                             nIsTRANSPARENT = 0;
+    LONG                            lBorderColor = 0L;
+    LONG                            lColor = 0L;
+
+    lBorderColor = m_pen.GetColour().GetPixel();
+    lColor       = m_brush.GetColour().GetPixel();
+    if(m_brush.GetStyle() == wxTRANSPARENT)
+        nIsTRANSPARENT = 1;

 
 

-void wxDC::DoDrawLines( int n, wxPoint points[]
-                       ,wxCoord xoffset, wxCoord yoffset
-                      )
+    vPlgn.ulPoints = n;
+    vPlgn.aPointl = (POINTL*) calloc( n + 1
+                                     ,sizeof(POINTL)
+                                    ); // well, new will call malloc
+
+    for(i = 0; i < n; i++)
+    {
+        vPlgn.aPointl[i].x = vPoints[i].x;         // +xoffset;
+        vPlgn.aPointl[i].y = OS2Y(vPoints[i].y,0); // +yoffset;
+    }
+    flModel = POLYGON_BOUNDARY;
+    if(nFillStyle == wxWINDING_RULE)
+        flModel |= POLYGON_WINDING;
+    else
+        flModel |= POLYGON_ALTERNATE;
+
+    vPoint.x = vXoffset;
+    vPoint.y = OS2Y(vYoffset,0);
+
+    ::GpiSetColor(m_hPS, lBorderColor);
+    ::GpiMove(m_hPS, &vPoint);
+    lHits = ::GpiPolygons(m_hPS, ulCount, &vPlgn, flOptions, flModel);
+    free(vPlgn.aPointl);
+} // end of wxDC::DoDrawPolygon
+
+void wxDC::DoDrawLines(
+  int                               n
+, wxPoint                           vPoints[]
+, wxCoord                           vXoffset
+, wxCoord                           vYoffset
+)

 {
 {

-   // TODO
-}
+    POINTL                          vPoint;
+
+    if (vXoffset != 0L || vXoffset != 0L)
+    {
+        int                             i;
+
+        vPoint.x = vPoints[0].x + vXoffset;
+        vPoint.y = OS2Y(vPoints[0].y + vYoffset,0);
+        ::GpiMove(m_hPS, &vPoint);
+
+        LONG                            lBorderColor = m_pen.GetColour().GetPixel();
+
+        ::GpiSetColor(m_hPS, lBorderColor);
+        for(i = 1; i < n; i++)
+        {
+            vPoint.x = vPoints[i].x + vXoffset;
+            vPoint.y = OS2Y(vPoints[i].y + vYoffset,0);
+            ::GpiLine(m_hPS, &vPoint);
+        }
+    }
+    else
+    {
+        int                         i;
+
+        CalcBoundingBox( vPoints[i].x
+                        ,vPoints[i].y
+                       );
+        vPoint.x = vPoints[0].x;
+        vPoint.y = OS2Y(vPoints[0].y,0);
+        ::GpiMove(m_hPS, &vPoint);
+
+        for (i = 0; i < n; i++)
+        {
+            CalcBoundingBox( vPoints[i].x
+                            ,vPoints[i].y
+                           );
+            vPoint.x = vPoints[i].x;
+            vPoint.y = OS2Y(vPoints[i].y,0);
+            ::GpiLine(m_hPS, &vPoint);
+        }
+    }
+} // end of wxDC::DoDrawLines

 
 void wxDC::DoDrawRectangle(
   wxCoord                           vX
 
 void wxDC::DoDrawRectangle(
   wxCoord                           vX


@@ -346,20 +770,70 @@ void wxDC::DoDrawRectangle(
 )
 {
     POINTL                          vPoint[2];
 )
 {
     POINTL                          vPoint[2];

+    LONG                            lControl;
+    LONG                            lColor;
+    LONG                            lBorderColor;
+    int                             nIsTRANSPARENT = 0;
+
+    vY = OS2Y(vY,vHeight);
+
+    wxCoord                         vX2 = vX + vWidth;
+    wxCoord                         vY2 = vY + vHeight;

 
     vPoint[0].x = vX;
     vPoint[0].y = vY;
     vPoint[1].x = vX + vWidth;
 
     vPoint[0].x = vX;
     vPoint[0].y = vY;
     vPoint[1].x = vX + vWidth;

-    vPoint[1].y = vY - vHeight;      //mustdie !!! ??
-
+    vPoint[1].y = vY + vHeight;

     ::GpiMove(m_hPS, &vPoint[0]);
     ::GpiMove(m_hPS, &vPoint[0]);

-    ::GpiBox( m_hPS       // handle to a presentation space
-             ,DRO_OUTLINE // draw the box outline ? or ?
-             ,&vPoint[1]  // address of the corner
-             ,0L          // horizontal corner radius
-             ,0L          // vertical corner radius
-            );
-}
+    lColor       = m_brush.GetColour().GetPixel();
+    lBorderColor = m_pen.GetColour().GetPixel();
+    if (m_brush.GetStyle() == wxTRANSPARENT)
+        nIsTRANSPARENT = 1;
+    if(lColor == lBorderColor || nIsTRANSPARENT)
+    {
+        lControl = DRO_OUTLINEFILL; //DRO_FILL;
+        if(m_brush.GetStyle() == wxTRANSPARENT)
+            lControl = DRO_OUTLINE;
+
+        ::GpiSetColor(m_hPS, lColor);
+        ::GpiBox( m_hPS       // handle to a presentation space
+                 ,lControl   // draw the box outline ? or ?
+                 ,&vPoint[1]  // address of the corner
+                 ,0L          // horizontal corner radius
+                 ,0L          // vertical corner radius
+                );
+    }
+    else
+    {
+        lControl = DRO_OUTLINE;
+        ::GpiSetColor( m_hPS
+                      ,lBorderColor
+                     );
+        ::GpiBox( m_hPS
+                 ,lControl
+                 ,&vPoint[1]
+                 ,0L
+                 ,0L
+                );
+        lControl = DRO_FILL;
+        ::GpiSetColor( m_hPS
+                      ,lColor
+                     );
+        vPoint[0].x = vX + 1;
+        vPoint[0].y = vY + 1;
+        vPoint[1].x = vX + vWidth - 1;
+        vPoint[1].y = vY + vHeight - 1;
+        ::GpiMove(m_hPS, &vPoint[0]);
+        ::GpiBox( m_hPS
+                 ,lControl
+                 ,&vPoint[1]
+                 ,0L
+                 ,0L
+                );
+    }
+    CalcBoundingBox(vX, vY);
+    CalcBoundingBox(vX2, vY2);
+} // end of wxDC::DoDrawRectangle

 
 void wxDC::DoDrawRoundedRectangle(
   wxCoord                           vX
 
 void wxDC::DoDrawRoundedRectangle(
   wxCoord                           vX


@@ -370,49 +844,172 @@ void wxDC::DoDrawRoundedRectangle(
 )
 {
     POINTL                          vPoint[2];
 )
 {
     POINTL                          vPoint[2];

+    LONG                            lControl;
+
+    vY = OS2Y(vY,vHeight);
+
+    wxCoord                         vX2 = (vX + vWidth);
+    wxCoord                         vY2 = (vY + vHeight);

 
     vPoint[0].x = vX;
 
     vPoint[0].x = vX;

-    vPoint[0].y = vY;
+    vPoint[0].y = YLOG2DEV(vY) - vHeight;

     vPoint[1].x = vX + vWidth;
     vPoint[1].x = vX + vWidth;

-    vPoint[1].y = vY + vHeight;      //or -height aka mustdie !!! ??
-
+    vPoint[1].y = vY;

     ::GpiMove(m_hPS, &vPoint[0]);
     ::GpiMove(m_hPS, &vPoint[0]);

+
+    lControl = DRO_OUTLINEFILL; //DRO_FILL;
+    if (m_brush.GetStyle() == wxTRANSPARENT)
+        lControl = DRO_OUTLINE;

     ::GpiBox( m_hPS         // handle to a presentation space
              ,DRO_OUTLINE   // draw the box outline ? or ?
              ,&vPoint[1]    // address of the corner
              ,(LONG)dRadius // horizontal corner radius
              ,(LONG)dRadius // vertical corner radius
             );
     ::GpiBox( m_hPS         // handle to a presentation space
              ,DRO_OUTLINE   // draw the box outline ? or ?
              ,&vPoint[1]    // address of the corner
              ,(LONG)dRadius // horizontal corner radius
              ,(LONG)dRadius // vertical corner radius
             );

-}
+    CalcBoundingBox(vX, vY);
+    CalcBoundingBox(vX2, vY2);
+} // end of wxDC::DoDrawRoundedRectangle

 
 

-void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+// Draw Ellipse within box (x,y) - (x+width, y+height)
+void wxDC::DoDrawEllipse(
+  wxCoord                           vX
+, wxCoord                           vY
+, wxCoord                           vWidth
+, wxCoord                           vHeight
+)

 {
 {

-   // TODO
-}
+    POINTL                          vPtlPos; // Structure for current position
+    FIXED                           vFxMult; // Multiplier for ellipse
+    ARCPARAMS                       vArcp;   // Structure for arc parameters
+
+    vY = OS2Y(vY,vHeight);
+
+    vArcp.lR = 0;
+    vArcp.lQ = vHeight/2;
+    vArcp.lP = vWidth/2;
+    vArcp.lS = 0;
+    ::GpiSetArcParams( m_hPS
+                      ,&vArcp
+                     ); // Sets parameters to default
+    vPtlPos.x = vX + vWidth/2;  // Loads x-coordinate
+    vPtlPos.y = vY + vHeight/2; // Loads y-coordinate
+    ::GpiMove( m_hPS
+              ,&vPtlPos
+             ); // Sets current position
+    vFxMult = MAKEFIXED(1, 0);             /* Sets multiplier            */
+
+    //
+    // DRO_FILL, DRO_OTLINEFILL - where to get
+    //
+    ::GpiFullArc( m_hPS
+                 ,DRO_OUTLINE
+                 ,vFxMult
+                ); // Draws full arc with center at current position

 
 

-void wxDC::DoDrawEllipticArc( wxCoord x
-                             ,wxCoord y
-                             ,wxCoord w
-                             ,wxCoord h
-                             ,double sa
-                             ,double ea
-                            )
+    wxCoord                         vX2 = (vX + vWidth);
+    wxCoord                         vY2 = (vY + vHeight);
+
+    CalcBoundingBox(vX, vY);
+    CalcBoundingBox(vX2, vY2);
+} // end of wxDC::DoDrawEllipse
+
+void wxDC::DoDrawEllipticArc(
+  wxCoord                           vX
+, wxCoord                           vY
+, wxCoord                           vWidth
+, wxCoord                           vHeight
+, double                            dSa
+, double                            dEa
+)

 {
 {

-   // TODO
-}
+    POINTL                          vPtlPos; // Structure for current position
+    FIXED                           vFxMult; // Multiplier for ellipse
+    ARCPARAMS                       vArcp;   // Structure for arc parameters
+    FIXED                           vFSa;
+    FIXED                           vFSweepa; // Start angle, sweep angle
+    double                          dIntPart;
+    double                          dFractPart;
+    double                          dRadius;
+
+    vY = OS2Y(vY,vHeight);
+
+    dFractPart = modf(dSa,&dIntPart);
+    vFSa = MAKEFIXED((int)dIntPart, (int)(dFractPart * 0xffff) );
+    dFractPart = modf(dEa - dSa, &dIntPart);
+    vFSweepa = MAKEFIXED((int)dIntPart, (int)(dFractPart * 0xffff) );
+
+    //
+    // Ellipse main axis (r,q), (p,s) with center at (0,0)
+    //
+    vArcp.lR = 0;
+    vArcp.lQ = vHeight/2;
+    vArcp.lP = vWidth/2;
+    vArcp.lS = 0;
+    ::GpiSetArcParams(m_hPS, &vArcp); // Sets parameters to default
+    vPtlPos.x = vX + vWidth/2  * (1. + cos(DegToRad(dSa))); // Loads x-coordinate
+    vPtlPos.y = vY + vHeight/2 * (1. + sin(DegToRad(dSa))); // Loads y-coordinate
+    ::GpiMove(m_hPS, &vPtlPos); // Sets current position

 
 

-void wxDC::DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
+    //
+    // May be not to the center ?
+    //
+    vPtlPos.x = vX + vWidth/2 ; // Loads x-coordinate
+    vPtlPos.y = vY + vHeight/2; // Loads y-coordinate
+    vFxMult = MAKEFIXED(1, 0);  // Sets multiplier
+
+    //
+    // DRO_FILL, DRO_OTLINEFILL - where to get
+    //
+    ::GpiPartialArc( m_hPS
+                    ,&vPtlPos
+                    ,vFxMult
+                    ,vFSa
+                    ,vFSweepa
+                   );
+    wxCoord                         vX2 = (vX + vWidth);
+    wxCoord                         vY2 = (vY + vHeight);
+
+    CalcBoundingBox(vX, vY);
+    CalcBoundingBox(vX2, vY2);
+} // end of wxDC::DoDrawEllipticArc
+
+void wxDC::DoDrawIcon(
+  const wxIcon&                     rIcon
+, wxCoord                           vX
+, wxCoord                           vY
+)

 {
 {

-   // TODO
-}
+    vY = OS2Y(vY,rIcon.GetHeight());
+    wxCHECK_RET( rIcon.Ok(), wxT("invalid icon in DrawIcon") );
+
+    ::WinDrawPointer( GetHPS()
+                     ,vX
+                     ,vY
+                     ,(HPOINTER)GetHiconOf(rIcon)
+                     ,DP_NORMAL
+                    );
+    CalcBoundingBox(vX, vY);
+    CalcBoundingBox(vX + rIcon.GetWidth(), vY + rIcon.GetHeight());
+} // end of wxDC::DoDrawIcon

 
 

-void wxDC::DoDrawBitmap( const wxBitmap &bmp
-                        ,wxCoord x, wxCoord y
-                        ,bool useMask
-                       )
+void wxDC::DoDrawBitmap(
+  const wxBitmap&                   rBmp
+, wxCoord                           vX
+, wxCoord                           vY
+, bool                              bUseMask
+)

 {
 {

-   // TODO
-}
+    POINTL                          vPoint = {vX, vY};
+
+    ::WinDrawBitmap( GetHPS()
+                    ,(HBITMAP)GetHbitmapOf(rBmp)
+                    ,NULL
+                    ,&vPoint
+                    ,0L
+                    ,0L
+                    ,DBM_NORMAL
+                   );
+} // end of wxDC::DoDrawBitmap

 
 void wxDC::DoDrawText(
   const wxString&                   rsText
 
 void wxDC::DoDrawText(
   const wxString&                   rsText


@@ -420,11 +1017,18 @@ void wxDC::DoDrawText(
 , wxCoord                           vY
 )
 {
 , wxCoord                           vY
 )
 {

+    wxCoord                         vWidth;
+    wxCoord                         vHeight;
+

     DrawAnyText( rsText
                 ,vX
                 ,vY
                );
     DrawAnyText( rsText
                 ,vX
                 ,vY
                );

-}
+
+    CalcBoundingBox(vX, vY);
+    GetTextExtent(rsText, &vWidth, &vHeight);
+    CalcBoundingBox((vX + vWidth), (vY + vHeight));
+} // end of wxDC::DoDrawText

 
 void wxDC::DrawAnyText(
   const wxString&                   rsText
 
 void wxDC::DrawAnyText(
   const wxString&                   rsText


@@ -435,6 +1039,8 @@ void wxDC::DrawAnyText(
     int                             nOldBackground = 0;
     POINTL                          vPtlStart;
     LONG                            lHits;
     int                             nOldBackground = 0;
     POINTL                          vPtlStart;
     LONG                            lHits;

+    wxCoord                         vTextX = 0;
+    wxCoord                         vTextY = 0;

 
     //
     // prepare for drawing the text
 
     //
     // prepare for drawing the text


@@ -459,8 +1065,12 @@ void wxDC::DrawAnyText(
     SetBkMode( m_hPS
               ,m_backgroundMode
              );
     SetBkMode( m_hPS
               ,m_backgroundMode
              );

+    GetTextExtent( rsText
+                  ,&vTextX
+                  ,&vTextY
+                 );

     vPtlStart.x = vX;
     vPtlStart.x = vX;

-    vPtlStart.y = vY;
+    vPtlStart.y = OS2Y(vY,vTextY);

 
     lHits = ::GpiCharStringAt( m_hPS
                               ,&vPtlStart
 
     lHits = ::GpiCharStringAt( m_hPS
                               ,&vPtlStart


@@ -557,10 +1167,26 @@ void wxDC::DoDrawRotatedText(
 // set GDI objects
 // ---------------------------------------------------------------------------
 
 // set GDI objects
 // ---------------------------------------------------------------------------
 

-void wxDC::SetPalette(const wxPalette& palette)
+void wxDC::SetPalette(
+  const wxPalette&                  rPalette
+)

 {
 {

-   // TODO
-}
+    if (m_hOldFont)
+    {
+        m_hOldFont = 0;
+    }
+    m_palette = rPalette;
+    if (!rPalette.Ok())
+    {
+        if (m_hOldFont)
+        {
+            m_hOldFont = 0;
+        }
+    }
+    HPALETTE                    hOldPal = ::GpiSelectPalette((HDC) m_hPS, (HPALETTE) m_palette.GetHPALETTE());
+    if (!m_hOldPalette)
+        m_hOldPalette = (WXHPALETTE)hOldPal;
+} // end of wxDC::SetPalette

 
 void wxDC::SetFont(
   const wxFont&                     rFont
 
 void wxDC::SetFont(
   const wxFont&                     rFont


@@ -572,22 +1198,19 @@ void wxDC::SetFont(
     //
     if (m_hOldFont)
     {
     //
     if (m_hOldFont)
     {

-//        ::SelectObject(GetHdc(), (HFONT) m_hOldFont);

         m_hOldFont = 0;
     }
         m_hOldFont = 0;
     }

-

     m_font = rFont;
     m_font = rFont;

-

     if (!rFont.Ok())
     {
     if (!rFont.Ok())
     {

-        if (m_hOldFont)
-//            ::SelectObject(GetHdc(), (HFONT) m_hOldFont);

         m_hOldFont = 0;
     }
 
         m_hOldFont = 0;
     }
 

-    if (m_font.Ok() && m_font.GetResourceHandle())
+    m_font.SetPS(m_hPS); // this will realize the font
+
+    if (m_font.Ok())

     {
     {

-        HFONT                       hFont = (HFONT)0; //::SelectObject(GetHdc(), (HFONT) m_font.GetResourceHandle());
+        HFONT                       hFont = m_font.GetResourceHandle();

         if (hFont == (HFONT) NULL)
         {
             wxLogDebug(wxT("::SelectObject failed in wxDC::SetFont."));
         if (hFont == (HFONT) NULL)
         {
             wxLogDebug(wxT("::SelectObject failed in wxDC::SetFont."));


@@ -595,7 +1218,7 @@ void wxDC::SetFont(
         if (!m_hOldFont)
             m_hOldFont = (WXHFONT) hFont;
     }
         if (!m_hOldFont)
             m_hOldFont = (WXHFONT) hFont;
     }

-}
+} // end of wxDC::SetFont

 
 void wxDC::SetPen(
   const wxPen&                      rPen
 
 void wxDC::SetPen(
   const wxPen&                      rPen


@@ -609,98 +1232,208 @@ void wxDC::SetPen(
     if (!m_pen.Ok())
         return;
 
     if (!m_pen.Ok())
         return;
 

-    int                             nWidth = m_pen.GetWidth();
+    if (m_hOldPen)
+        m_hOldPen = 0L;
+    m_pen = rPen;

 
 

-    if (nWidth <= 0)
+    if (!m_pen.Ok())

     {
     {

-        nWidth = 1;
+        if (m_hOldPen)
+        {
+            m_pen.SetPS((HPS)m_hOldPen);
+        }
+        m_hOldPen = 0L;

     }
     }

-    else
+
+    if (m_pen.Ok())

     {
     {

-        double                      dW = 0.5 +
-                                       ( fabs((double) XLOG2DEVREL(nWidth)) +
-                                         fabs((double) YLOG2DEVREL(nWidth))
-                                       ) / 2.0;
-        nWidth = (int)dW;
+        if (m_pen.GetResourceHandle())
+        {
+            m_pen.SetPS(m_hPS);
+            if (!m_hOldPen)
+                m_hOldPen = m_pen.GetPS();
+        }

     }
     }

-    wxColour                        vColor = m_pen.GetColour();
-
-    ::GpiSetColor( m_hPS
-                  ,vColor.GetPixel()
-                 ); //DEbug ??

 }
 
 }
 

-void wxDC::SetBrush(const wxBrush& brush)
+void wxDC::SetBrush(
+  const wxBrush&                    rBrush
+)

 {
 {

-   // TODO
-}
+    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+    if (m_hOldBrush)
+        m_hOldBrush = 0L;
+    m_brush = rBrush;
+    if (!m_brush.Ok())
+    if (m_brush == rBrush)
+        return;
+    if (!m_brush.Ok())
+        if (m_hOldBrush)
+            m_hOldBrush = 0L;
+
+    if (!m_brush.Ok())
+    {
+        if (m_hOldBrush)
+        {
+            m_brush.SetPS((HPS)m_hOldBrush);
+        }
+        m_hOldBrush = 0L;
+    }

 
 

-void wxDC::SetBackground(const wxBrush& brush)
+    if (m_brush.Ok())
+    {
+        if (m_brush.GetResourceHandle())
+        {
+            m_brush.SetPS(m_hPS);
+            if (!m_hOldBrush)
+                m_hOldBrush = (WXHWND)m_brush.GetPS();
+        }
+    }
+} // end of wxDC::SetBrush
+
+void wxDC::SetBackground(
+  const wxBrush&                    rBrush
+)

 {
 {

-   // TODO
-}
+    m_backgroundBrush = rBrush;
+    if (!m_backgroundBrush.Ok())
+        return;
+    if (m_pCanvas)
+    {
+        bool                        bCustomColours = TRUE;
+
+        //
+        // If we haven't specified wxUSER_COLOURS, don't allow the panel/dialog box to
+        // change background colours from the control-panel specified colours.
+        //
+        if (m_pCanvas->IsKindOf(CLASSINFO(wxWindow)) &&
+            ((m_pCanvas->GetWindowStyleFlag() & wxUSER_COLOURS) != wxUSER_COLOURS))
+            bCustomColours = FALSE;
+        if (bCustomColours)
+        {
+            if (m_backgroundBrush.GetStyle()==wxTRANSPARENT)
+            {
+                m_pCanvas->SetTransparent(TRUE);
+            }
+            else
+            {
+                //
+                // Setting the background brush of a DC
+                // doesn't affect the window background colour. However,
+                // I'm leaving in the transparency setting because it's needed by
+                // various controls (e.g. wxStaticText) to determine whether to draw
+                // transparently or not. TODO: maybe this should be a new function
+                // wxWindow::SetTransparency(). Should that apply to the child itself, or the
+                // parent?
+                // m_canvas->SetBackgroundColour(m_backgroundBrush.GetColour());
+                //
+                m_pCanvas->SetTransparent(FALSE);
+            }
+        }
+    }
+    COLORREF                        vNewColor = m_backgroundBrush.GetColour().GetPixel();
+    (void)::GpiSetBackColor((HPS)m_hPS, (LONG)vNewColor);
+} // end of wxDC::SetBackground

 
 void wxDC::SetBackgroundMode(
   int                               nMode
 )
 {
     m_backgroundMode = nMode;
 
 void wxDC::SetBackgroundMode(
   int                               nMode
 )
 {
     m_backgroundMode = nMode;

-}
+} // end of wxDC::SetBackgroundMode

 
 

-void wxDC::SetLogicalFunction(int function)
+void wxDC::SetLogicalFunction(
+  int                               nFunction
+)

 {
 {

-   // TODO
-}
+    m_logicalFunction = nFunction;
+    SetRop((WXHDC)m_hDC);
+} // wxDC::SetLogicalFunction

 
 

-void wxDC::SetRop(WXHDC dc)
+void wxDC::SetRop(
+  WXHDC                             hDC
+)

 {
 {

-    if (!dc || m_logicalFunction < 0)
+    if (!hDC || m_logicalFunction < 0)

         return;
 
         return;
 

-    int c_rop;
-    // These may be wrong
+    LONG                            lCRop;

     switch (m_logicalFunction)
     {
     switch (m_logicalFunction)
     {

-// TODO: Figure this stuff out
-        //    case wxXOR: c_rop = R2_XORPEN; break;
-//    case wxXOR: c_rop = R2_NOTXORPEN; break;
-//    case wxINVERT: c_rop = R2_NOT; break;
-//    case wxOR_REVERSE: c_rop = R2_MERGEPENNOT; break;
-//    case wxAND_REVERSE: c_rop = R2_MASKPENNOT; break;
-//    case wxCLEAR: c_rop = R2_WHITE; break;
-//    case wxSET: c_rop = R2_BLACK; break;
-//    case wxSRC_INVERT: c_rop = R2_NOTCOPYPEN; break;
-//    case wxOR_INVERT: c_rop = R2_MERGENOTPEN; break;
-//    case wxAND: c_rop = R2_MASKPEN; break;
-//    case wxOR: c_rop = R2_MERGEPEN; break;
-//    case wxAND_INVERT: c_rop = R2_MASKNOTPEN; break;
-//    case wxEQUIV:
-//    case wxNAND:
-//    case wxCOPY:
-    default:
-//      c_rop = R2_COPYPEN;
-        break;
+        case wxXOR:
+            lCRop = FM_XOR;
+            break;
+
+        case wxINVERT:
+            lCRop = FM_INVERT;
+            break;
+
+        case wxOR_REVERSE:
+            lCRop = FM_MERGESRCNOT;
+            break;
+
+        case wxAND_REVERSE:
+            lCRop = FM_NOTMASKSRC;
+            break;
+
+        case wxCLEAR:
+            lCRop = FM_ONE;
+            break;
+
+        case wxSET:
+            lCRop = FM_ZERO;
+            break;
+
+        case wxSRC_INVERT:
+            lCRop = FM_MERGENOTSRC;
+            break;
+
+        case wxOR_INVERT:
+            lCRop = FM_MERGESRCNOT;
+            break;
+
+        case wxAND:
+            lCRop = FM_AND;
+            break;
+
+        case wxOR:
+            lCRop = FM_OR;
+            break;
+
+        case wxAND_INVERT:
+            lCRop = FM_SUBTRACT;
+            break;
+
+        case wxEQUIV:
+        case wxNAND:
+        case wxCOPY:
+        default:
+            lCRop = FM_OVERPAINT;
+            break;

     }
     }

-//    SetROP2((HDC) dc, c_rop);
-}
+    ::GpiSetMix((HPS)hDC, lCRop);
+} // end of wxDC::SetRop

 
 

-bool wxDC::StartDoc(const wxString& message)
+bool wxDC::StartDoc(
+  const wxString&                   rsMessage
+)

 {
     // We might be previewing, so return TRUE to let it continue.
     return TRUE;
 {
     // We might be previewing, so return TRUE to let it continue.
     return TRUE;

-}
+} // end of wxDC::StartDoc

 
 void wxDC::EndDoc()
 {
 
 void wxDC::EndDoc()
 {

-}
+} // end of wxDC::EndDoc

 
 void wxDC::StartPage()
 {
 
 void wxDC::StartPage()
 {

-}
+} // end of wxDC::StartPage

 
 void wxDC::EndPage()
 {
 
 void wxDC::EndPage()
 {

-}
+} // end of wxDC::EndPage

 
 // ---------------------------------------------------------------------------
 // text metrics
 
 // ---------------------------------------------------------------------------
 // text metrics


@@ -708,14 +1441,24 @@ void wxDC::EndPage()
 
 wxCoord wxDC::GetCharHeight() const
 {
 
 wxCoord wxDC::GetCharHeight() const
 {

-    // TODO
-    return(8);
+    FONTMETRICS                     vFM; // metrics structure
+
+    ::GpiQueryFontMetrics( m_hPS
+                          ,sizeof(FONTMETRICS)
+                          ,&vFM
+                         );
+    return YDEV2LOGREL(vFM.lXHeight);

 }
 
 wxCoord wxDC::GetCharWidth() const
 {
 }
 
 wxCoord wxDC::GetCharWidth() const
 {

-    // TODO
-    return(8);
+    FONTMETRICS                     vFM; // metrics structure
+
+    ::GpiQueryFontMetrics( m_hPS
+                          ,sizeof(FONTMETRICS)
+                          ,&vFM
+                         );
+    return XDEV2LOGREL(vFM.lAveCharWidth);

 }
 
 void wxDC::DoGetTextExtent(
 }
 
 void wxDC::DoGetTextExtent(


@@ -738,6 +1481,9 @@ void wxDC::DoGetTextExtent(
     ERRORID                         vErrorCode; // last error id code
     wxFont*                         pFontToUse = (wxFont*)pTheFont;
 
     ERRORID                         vErrorCode; // last error id code
     wxFont*                         pFontToUse = (wxFont*)pTheFont;
 

+    char                            zMsg[128]; // DEBUG
+    wxString                        sError;
+

     if (!pFontToUse)
         pFontToUse = (wxFont*)&m_font;
     l = rsString.length();
     if (!pFontToUse)
         pFontToUse = (wxFont*)&m_font;
     l = rsString.length();


@@ -755,6 +1501,13 @@ void wxDC::DoGetTextExtent(
     if(!bRc)
     {
        vErrorCode = ::WinGetLastError(wxGetInstance());
     if(!bRc)
     {
        vErrorCode = ::WinGetLastError(wxGetInstance());

+       sError = wxPMErrorToStr(vErrorCode);
+       // DEBUG
+       sprintf(zMsg, "GpiQueryTextBox for %s: failed with Error: %x - %s", pStr, vErrorCode, sError.c_str());
+       (void)wxMessageBox( "wxWindows Menu sample"
+                          ,zMsg
+                          ,wxICON_INFORMATION
+                         );

     }
 
     vPtMin.x = avPoint[0].x;
     }
 
     vPtMin.x = avPoint[0].x;


@@ -783,44 +1536,156 @@ void wxDC::DoGetTextExtent(
         *pvExternalLeading = vFM.lExternalLeading;
 }
 
         *pvExternalLeading = vFM.lExternalLeading;
 }
 

-void wxDC::SetMapMode( int mode )
+void wxDC::SetMapMode(
+  int                               nMode
+)

 {
 {

-    // TODO:
-};
+    int                             nPixelWidth = 0;
+    int                             nPixelHeight = 0;
+    int                             nMmWidth = 1;
+    int                             nMmHeight = 1;
+    LONG                            lArray[CAPS_VERTICAL_RESOLUTION];
+
+    m_mappingMode = nMode;
+
+    if(::DevQueryCaps( m_hDC
+                      ,CAPS_FAMILY
+                      ,CAPS_VERTICAL_RESOLUTION
+                      ,lArray
+                     ))
+    {
+        LONG                        lHorzRes;
+        LONG                        lVertRes;
+
+        nPixelWidth    = lArray[CAPS_WIDTH];
+        nPixelHeight   = lArray[CAPS_HEIGHT];
+        lHorzRes  = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
+        lVertRes  = lArray[CAPS_VERTICAL_RESOLUTION];   // returns pel/meter
+        nMmWidth  = (lHorzRes/1000) * nPixelWidth;
+        nMmWidth = (lVertRes/1000) * nPixelHeight;
+    }
+    if ((nPixelWidth == 0) || (nPixelHeight == 0) || (nMmWidth == 0) || (nMmHeight == 0))
+    {
+        return;
+    }
+
+    double                          dMm2pixelsX = nPixelWidth/nMmWidth;
+    double                          dMm2pixelsY = nPixelHeight/nMmHeight;
+
+    switch (nMode)
+    {
+        case wxMM_TWIPS:
+            m_logicalScaleX = (twips2mm * dMm2pixelsX);
+            m_logicalScaleY = (twips2mm * dMm2pixelsY);
+            break;
+
+        case wxMM_POINTS:
+            m_logicalScaleX = (pt2mm * dMm2pixelsX);
+            m_logicalScaleY = (pt2mm * dMm2pixelsY);
+            break;
+
+        case wxMM_METRIC:
+            m_logicalScaleX = dMm2pixelsX;
+            m_logicalScaleY = dMm2pixelsY;
+            break;
+
+        case wxMM_LOMETRIC:
+            m_logicalScaleX = (dMm2pixelsX/10.0);
+            m_logicalScaleY = (dMm2pixelsY/10.0);
+            break;
+
+        case wxMM_TEXT:
+        default:
+            m_logicalScaleX = 1.0;
+            m_logicalScaleY = 1.0;
+            break;
+    }
+    SIZEL                           vSize;
+    ULONG                           ulOptions;

 
 

-void wxDC::SetUserScale(double x, double y)
+    ulOptions = ::GpiQueryPS(m_hPS, &vSize);
+    if (!ulOptions & PU_ARBITRARY)
+    {
+        ulOptions = PU_ARBITRARY | GPIF_DEFAULT;
+        ::GpiSetPS(m_hPS, &vSize, ulOptions);
+    }
+    m_nWindowExtX = (int)MS_XDEV2LOGREL(VIEWPORT_EXTENT);
+    m_nWindowExtY = (int)MS_YDEV2LOGREL(VIEWPORT_EXTENT);
+    // ????
+}; // end of wxDC::SetMapMode
+
+void wxDC::SetUserScale(
+  double                            dX
+, double                            dY
+)

 {
 {

-    m_userScaleX = x;
-    m_userScaleY = y;
+    m_userScaleX = dX;
+    m_userScaleY = dY;

 
     SetMapMode(m_mappingMode);
 
     SetMapMode(m_mappingMode);

-}
+} // end of wxDC::SetUserScale

 
 

-void wxDC::SetAxisOrientation(bool xLeftRight, bool yBottomUp)
+void wxDC::SetAxisOrientation(
+  bool                              bXLeftRight
+, bool                              bYBottomUp
+)

 {
 {

-    m_signX = xLeftRight ? 1 : -1;
-    m_signY = yBottomUp ? -1 : 1;
+    m_signX = bXLeftRight ? 1 : -1;
+    m_signY = bYBottomUp ? -1 : 1;

 
     SetMapMode(m_mappingMode);
 
     SetMapMode(m_mappingMode);

-}
+} // end of wxDC::SetAxisOrientation

 
 

-void wxDC::SetSystemScale(double x, double y)
+void wxDC::SetSystemScale(
+  double                            dX
+, double                            dY
+)

 {
 {

-    m_scaleX = x;
-    m_scaleY = y;
+    m_scaleX = dX;
+    m_scaleY = dY;

 
     SetMapMode(m_mappingMode);
 
     SetMapMode(m_mappingMode);

-}
+} // end of wxDC::SetSystemScale

 
 

-void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
+void wxDC::SetLogicalOrigin(
+  wxCoord                           vX
+, wxCoord                           vY
+)

 {
 {

-    // TODO:
-};
+    RECTL                           vRect;
+
+    ::GpiQueryPageViewport( m_hPS
+                           ,&vRect
+                          );
+    vRect.xRight -= vX;
+    vRect.yTop += vY;
+    vRect.xLeft = vX;
+    vRect.yBottom = vY;
+    ::GpiSetPageViewport( m_hPS
+                         ,&vRect
+                        );
+}; // end of wxDC::SetLogicalOrigin

 
 

-void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
+void wxDC::SetDeviceOrigin(
+  wxCoord                           vX
+, wxCoord                           vY
+)

 {
 {

-    // TODO:
-};
+    RECTL                           vRect;
+
+    m_deviceOriginX = vX;
+    m_deviceOriginY = vY;
+    ::GpiQueryPageViewport( m_hPS
+                           ,&vRect
+                          );
+    vRect.xLeft += vX;
+    vRect.xRight += vX;
+    vRect.yBottom -= vY;
+    vRect.yTop -= vY;
+    ::GpiSetPageViewport( m_hPS
+                         ,&vRect
+                        );
+}; // end of wxDC::SetDeviceOrigin

 
 // ---------------------------------------------------------------------------
 // coordinates transformations
 
 // ---------------------------------------------------------------------------
 // coordinates transformations


@@ -870,292 +1735,363 @@ wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
 // bit blit
 // ---------------------------------------------------------------------------
 
 // bit blit
 // ---------------------------------------------------------------------------
 

-bool wxDC::DoBlit( wxCoord xdest
-                  ,wxCoord ydest
-                  ,wxCoord width
-                  ,wxCoord height
-                  ,wxDC *source
-                  ,wxCoord xsrc
-                  ,wxCoord ysrc
-                  ,int  rop
-                  ,bool useMask
-                 )
-{
-   // TODO
-   return(TRUE);
-}
-
-void wxDC::DoGetSize( int* width, int* height ) const
-{
-    // TODO:
-};
-
-void wxDC::DoGetSizeMM( int* width, int* height ) const
-{
-    // TODO:
-};
-
-wxSize wxDC::GetPPI() const
-{
-   int x = 1;
-   int y = 1;
-   // TODO:
-   return (wxSize(x,y));
-}
-
-void wxDC::SetLogicalScale( double x, double y )
-{
-    // TODO:
-};
-
-#if WXWIN_COMPATIBILITY
-void wxDC::DoGetTextExtent(const wxString& string, float *x, float *y,
-                         float *descent, float *externalLeading,
-                         wxFont *theFont, bool use16bit) const
-{
-    wxCoord x1, y1, descent1, externalLeading1;
-    GetTextExtent(string, & x1, & y1, & descent1, & externalLeading1, theFont, use16bit);
-    *x = x1; *y = y1;
-    if (descent)
-        *descent = descent1;
-    if (externalLeading)
-        *externalLeading = externalLeading1;
-}
-#endif
-
-// ---------------------------------------------------------------------------
-// spline drawing code
-// ---------------------------------------------------------------------------
-
-#if wxUSE_SPLINES
-
-class wxSpline: public wxObject
-{
-public:
-    int type;
-    wxList *points;
-
-    wxSpline(wxList *list);
-    void DeletePoints();
-
-    // Doesn't delete points
-    ~wxSpline();
-};
-
-void wx_draw_open_spline(wxDC *dc, wxSpline *spline);
-
-void wx_quadratic_spline(double a1, double b1, double a2, double b2,
-                         double a3, double b3, double a4, double b4);
-void wx_clear_stack();
-int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3,
-                  double *y3, double *x4, double *y4);
-void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3,
-                    double x4, double y4);
-static bool wx_spline_add_point(double x, double y);
-static void wx_spline_draw_point_array(wxDC *dc);
-wxSpline *wx_make_spline(int x1, int y1, int x2, int y2, int x3, int y3);
-
-void wxDC::DoDrawSpline(wxList *list)
-{
-    wxSpline spline(list);
-
-    wx_draw_open_spline(this, &spline);
-}
-
-wxList wx_spline_point_list;
-
-void wx_draw_open_spline(wxDC *dc, wxSpline *spline)
+bool wxDC::DoBlit(
+  wxCoord                           vXdest
+, wxCoord                           vYdest
+, wxCoord                           vWidth
+, wxCoord                           vHeight
+, wxDC*                             pSource
+, wxCoord                           vXsrc
+, wxCoord                           vYsrc
+, int                               nRop
+, bool                              bUseMask
+)

 {
 {

-    wxPoint *p;
-    double           cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
-    double           x1, y1, x2, y2;
-
-    wxNode *node = spline->points->First();
-    p = (wxPoint *)node->Data();
-
-    x1 = p->x;
-    y1 = p->y;
+    wxMask*                         pMask = NULL;
+    CHARBUNDLE                      vCbnd;
+    COLORREF                        vOldTextColor;
+    COLORREF                        vOldBackground = ::GpiQueryBackColor(m_hPS);

 
 

-    node = node->Next();
-    p = (wxPoint *)node->Data();
+    if (bUseMask)
+    {
+        const wxBitmap&             rBmp = pSource->m_vSelectedBitmap;

 
 

-    x2 = p->x;
-    y2 = p->y;
-    cx1 = (double)((x1 + x2) / 2);
-    cy1 = (double)((y1 + y2) / 2);
-    cx2 = (double)((cx1 + x2) / 2);
-    cy2 = (double)((cy1 + y2) / 2);
+        pMask = rBmp.GetMask();
+        if (!(rBmp.Ok() && pMask && pMask->GetMaskBitmap()))
+        {
+            bUseMask = FALSE;
+        }
+    }

 
 

-    wx_spline_add_point(x1, y1);
+    ::GpiQueryAttrs( m_hPS
+                    ,PRIM_CHAR
+                    ,CBB_COLOR
+                    ,&vCbnd
+                   );
+    vOldTextColor = (COLORREF)vCbnd.lColor;

 
 

-    while ((node = node->Next()) != NULL)
+    if (m_textForegroundColour.Ok())

     {
     {

-        p = (wxPoint *)node->Data();
-        x1 = x2;
-        y1 = y2;
-        x2 = p->x;
-        y2 = p->y;
-        cx4 = (double)(x1 + x2) / 2;
-        cy4 = (double)(y1 + y2) / 2;
-        cx3 = (double)(x1 + cx4) / 2;
-        cy3 = (double)(y1 + cy4) / 2;
-
-        wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4);
-
-        cx1 = cx4;
-        cy1 = cy4;
-        cx2 = (double)(cx1 + x2) / 2;
-        cy2 = (double)(cy1 + y2) / 2;
+        vCbnd.lColor = (LONG)m_textForegroundColour.GetPixel();
+        ::GpiSetAttrs( m_hPS           // presentation-space handle
+                      ,PRIM_CHAR       // Char primitive.
+                      ,CBB_COLOR       // sets color.
+                      ,0
+                      ,&vCbnd          // buffer for attributes.
+                     );
+    }
+    if (m_textBackgroundColour.Ok())
+    {
+        ::GpiSetBackColor(m_hPS, (LONG)m_textBackgroundColour.GetPixel());

     }
 
     }
 

-    wx_spline_add_point((double)wx_round(cx1), (double)wx_round(cy1));
-    wx_spline_add_point(x2, y2);
-
-    wx_spline_draw_point_array(dc);
-
-}
-
-/********************* CURVES FOR SPLINES *****************************
-
-  The following spline drawing routine is from
-
-    "An Algorithm for High-Speed Curve Generation"
-    by George Merrill Chaikin,
-    Computer Graphics and Image Processing, 3, Academic Press,
-    1974, 346-349.
+    LONG                            lRop = ROP_SRCCOPY;

 
 

-      and
+    switch (nRop)
+    {
+        case wxXOR:          lRop = ROP_SRCINVERT;        break;
+        case wxINVERT:       lRop = ROP_DSTINVERT;        break;
+        case wxOR_REVERSE:   lRop = 0x00DD0228;           break;
+        case wxAND_REVERSE:  lRop = ROP_SRCERASE;         break;
+        case wxCLEAR:        lRop = ROP_ZERO;             break;
+        case wxSET:          lRop = ROP_ONE;              break;
+        case wxOR_INVERT:    lRop = ROP_MERGEPAINT;       break;
+        case wxAND:          lRop = ROP_SRCAND;           break;
+        case wxOR:           lRop = ROP_SRCPAINT;         break;
+        case wxEQUIV:        lRop = 0x00990066;           break;
+        case wxNAND:         lRop = 0x007700E6;           break;
+        case wxAND_INVERT:   lRop = 0x00220326;           break;
+        case wxCOPY:         lRop = ROP_SRCCOPY;          break;
+        case wxNO_OP:        lRop = ROP_NOTSRCERASE;      break;
+        case wxSRC_INVERT:   lRop = ROP_SRCINVERT;        break;
+        case wxNOR:          lRop = ROP_NOTSRCCOPY;       break;
+        default:
+           wxFAIL_MSG( wxT("unsupported logical function") );
+           return FALSE;
+    }

 
 

-        "On Chaikin's Algorithm" by R. F. Riesenfeld,
-        Computer Graphics and Image Processing, 4, Academic Press,
-        1975, 304-310.
+    bool                            bSuccess;

 
 

-***********************************************************************/
+    if (bUseMask)
+    {
+        //
+        // Blit bitmap with mask
+        //
+
+        //
+        // Create a temp buffer bitmap and DCs/PSs to access it and the mask
+        //
+        HDC                             hDCMask;
+        HDC                             hDCBuffer;
+        HPS                             hPSMask;
+        HPS                             hPSBuffer;
+        DEVOPENSTRUC                    vDOP = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
+        BITMAPINFOHEADER2               vBmpHdr;
+        SIZEL                           vSize = {0, 0};
+        LONG                            rc;
+
+        hDCMask = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);
+        hDCBuffer = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);
+        hPSMask = ::GpiCreatePS(vHabmain, hDCMask, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
+        hPSBuffer = ::GpiCreatePS(vHabmain, hDCBuffer, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
+
+        memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2));
+        vBmpHdr.cbFix     = sizeof(BITMAPINFOHEADER2);
+        vBmpHdr.cx        = vWidth;
+        vBmpHdr.cy        = vHeight;
+        vBmpHdr.cPlanes   = 1;
+        vBmpHdr.cBitCount = 24;
+
+        HBITMAP                         hBufBitmap = ::GpiCreateBitmap(GetHPS(), &vBmpHdr, 0L, NULL, NULL);
+        POINTL                          aPoint1[4] = { 0, 0
+                                                      ,vWidth, vHeight
+                                                      ,vXdest, vYdest
+                                                      ,vXdest + vWidth, vYdest + vHeight
+                                                     };
+        POINTL                          aPoint2[4] = { 0, 0
+                                                      ,vWidth, vHeight
+                                                      ,vXsrc, vYsrc
+                                                      ,vXsrc + vWidth, vYsrc + vHeight
+                                                     };
+        POINTL                          aPoint3[4] = { vXdest, vYdest
+                                                      ,vXdest + vWidth, vYdest + vHeight
+                                                      ,vXsrc, vYsrc
+                                                      ,vXsrc + vWidth, vYsrc + vHeight
+                                                     };
+        POINTL                          aPoint4[4] = { vXdest, vYdest
+                                                      ,vXdest + vWidth, vYdest + vHeight
+                                                      ,0, 0
+                                                      ,vWidth, vHeight
+                                                     };
+        ::GpiSetBitmap(hPSMask, (HBITMAP) pMask->GetMaskBitmap());
+        ::GpiSetBitmap(hPSBuffer, (HBITMAP) hBufBitmap);
+
+        //
+        // Copy dest to buffer
+        //
+        rc = ::GpiBitBlt( hPSBuffer
+                         ,GetHPS()
+                         ,4L
+                         ,aPoint1
+                         ,ROP_SRCCOPY
+                         ,BBO_IGNORE
+                        );
+        if (rc == GPI_ERROR)
+        {
+            wxLogLastError(wxT("BitBlt"));
+        }

 
 

-#define     half(z1, z2)    ((z1+z2)/2.0)
-#define     THRESHOLD   5
+        //
+        // Copy src to buffer using selected raster op
+        //
+        rc = ::GpiBitBlt( hPSBuffer
+                         ,GetHPS()
+                         ,4L
+                         ,aPoint2
+                         ,lRop
+                         ,BBO_IGNORE
+                        );
+        if (rc == GPI_ERROR)
+        {
+            wxLogLastError(wxT("BitBlt"));
+        }

 
 

-/* iterative version */
+        //
+        // Set masked area in buffer to BLACK (pixel value 0)
+        //
+        COLORREF                        vPrevBkCol = ::GpiQueryBackColor(GetHPS());
+        COLORREF                        vPrevCol = ::GpiQueryColor(GetHPS());
+
+        ::GpiSetBackColor(GetHPS(), OS2RGB(255, 255, 255));
+        ::GpiSetColor(GetHPS(), OS2RGB(0, 0, 0));
+
+        rc = ::GpiBitBlt( hPSBuffer
+                         ,hPSMask
+                         ,4L
+                         ,aPoint2
+                         ,ROP_SRCAND
+                         ,BBO_IGNORE
+                        );
+        if (rc == GPI_ERROR)
+        {
+            wxLogLastError(wxT("BitBlt"));
+        }

 
 

-void wx_quadratic_spline(double a1, double b1, double a2, double b2, double a3, double b3, double a4,
-                         double b4)
-{
-    register double  xmid, ymid;
-    double           x1, y1, x2, y2, x3, y3, x4, y4;
+        //
+        // Set unmasked area in dest to BLACK
+        //
+        ::GpiSetBackColor(GetHPS(), OS2RGB(0, 0, 0));
+        ::GpiSetColor(GetHPS(), OS2RGB(255, 255, 255));
+        rc = ::GpiBitBlt( GetHPS()
+                         ,hPSMask
+                         ,4L
+                         ,aPoint3
+                         ,ROP_SRCAND
+                         ,BBO_IGNORE
+                        );
+        if (rc == GPI_ERROR)
+        {
+            wxLogLastError(wxT("BitBlt"));
+        }

 
 

-    wx_clear_stack();
-    wx_spline_push(a1, b1, a2, b2, a3, b3, a4, b4);
+        //
+        // Restore colours to original values
+        //
+        ::GpiSetBackColor(GetHPS(), vPrevBkCol);
+        ::GpiSetColor(GetHPS(), vPrevCol);
+
+        //
+        // OR buffer to dest
+        //
+        rc = ::GpiBitBlt( GetHPS()
+                         ,hPSMask
+                         ,4L
+                         ,aPoint4
+                         ,ROP_SRCPAINT
+                         ,BBO_IGNORE
+                        );
+        if (rc == GPI_ERROR)
+        {
+            bSuccess = FALSE;
+            wxLogLastError(wxT("BitBlt"));
+        }

 
 

-    while (wx_spline_pop(&x1, &y1, &x2, &y2, &x3, &y3, &x4, &y4)) {
-        xmid = (double)half(x2, x3);
-        ymid = (double)half(y2, y3);
-        if (fabs(x1 - xmid) < THRESHOLD && fabs(y1 - ymid) < THRESHOLD &&
-            fabs(xmid - x4) < THRESHOLD && fabs(ymid - y4) < THRESHOLD) {
-            wx_spline_add_point((double)wx_round(x1), (double)wx_round(y1));
-            wx_spline_add_point((double)wx_round(xmid), (double)wx_round(ymid));
-        } else {
-            wx_spline_push(xmid, ymid, (double)half(xmid, x3), (double)half(ymid, y3),
-                (double)half(x3, x4), (double)half(y3, y4), x4, y4);
-            wx_spline_push(x1, y1, (double)half(x1, x2), (double)half(y1, y2),
-                (double)half(x2, xmid), (double)half(y2, ymid), xmid, ymid);
+        //
+        // Tidy up temporary DCs and bitmap
+        //
+        ::GpiSetBitmap(hPSMask, NULLHANDLE);
+        ::GpiSetBitmap(hPSBuffer, NULLHANDLE);
+        ::GpiDestroyPS(hPSMask);
+        ::GpiDestroyPS(hPSBuffer);
+        ::DevCloseDC(hDCMask);
+        ::DevCloseDC(hDCBuffer);
+        ::GpiDeleteBitmap(hBufBitmap);
+        bSuccess = TRUE;
+    }
+    else // no mask, just BitBlt() it
+    {
+        POINTL                          aPoint[4] = { vXdest, vYdest
+                                                     ,vXdest + vWidth, vYdest + vHeight
+                                                     ,vXsrc, vYsrc
+                                                     ,vXsrc + vWidth, vYsrc + vHeight
+                                                    };
+
+        bSuccess = (::GpiBitBlt( m_hPS
+                                ,pSource->GetHPS()
+                                ,4L
+                                ,aPoint
+                                ,lRop
+                                ,BBO_IGNORE
+                               ) != GPI_ERROR);
+        if (!bSuccess )
+        {
+            wxLogLastError(wxT("BitBlt"));

         }
     }
         }
     }

+    vCbnd.lColor = (LONG)vOldTextColor;
+    ::GpiSetAttrs( m_hPS           // presentation-space handle
+                  ,PRIM_CHAR       // Char primitive.
+                  ,CBB_COLOR       // sets color.
+                  ,0
+                  ,&vCbnd          // buffer for attributes.
+                 );
+    ::GpiSetBackColor(m_hPS, (LONG)vOldBackground);
+    return bSuccess;

 }
 
 }
 

-
-/* utilities used by spline drawing routines */
-
-
-typedef struct wx_spline_stack_struct {
-    double           x1, y1, x2, y2, x3, y3, x4, y4;
-}
-Stack;
-
-#define         SPLINE_STACK_DEPTH             20
-static Stack    wx_spline_stack[SPLINE_STACK_DEPTH];
-static Stack   *wx_stack_top;
-static int      wx_stack_count;
-
-void wx_clear_stack()
+void wxDC::DoGetSize(
+  int*                              pnWidth
+, int*                              pnHeight
+) const

 {
 {

-    wx_stack_top = wx_spline_stack;
-    wx_stack_count = 0;
-}
+    LONG                            lArray[CAPS_HEIGHT];

 
 

-void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4)
-{
-    wx_stack_top->x1 = x1;
-    wx_stack_top->y1 = y1;
-    wx_stack_top->x2 = x2;
-    wx_stack_top->y2 = y2;
-    wx_stack_top->x3 = x3;
-    wx_stack_top->y3 = y3;
-    wx_stack_top->x4 = x4;
-    wx_stack_top->y4 = y4;
-    wx_stack_top++;
-    wx_stack_count++;
-}
-
-int wx_spline_pop(double *x1, double *y1, double *x2, double *y2,
-                  double *x3, double *y3, double *x4, double *y4)
-{
-    if (wx_stack_count == 0)
-        return (0);
-    wx_stack_top--;
-    wx_stack_count--;
-    *x1 = wx_stack_top->x1;
-    *y1 = wx_stack_top->y1;
-    *x2 = wx_stack_top->x2;
-    *y2 = wx_stack_top->y2;
-    *x3 = wx_stack_top->x3;
-    *y3 = wx_stack_top->y3;
-    *x4 = wx_stack_top->x4;
-    *y4 = wx_stack_top->y4;
-    return (1);
-}
+    if(::DevQueryCaps( m_hDC
+                      ,CAPS_FAMILY
+                      ,CAPS_HEIGHT
+                      ,lArray
+                     ))
+    {
+        *pnWidth  = lArray[CAPS_WIDTH];
+        *pnHeight = lArray[CAPS_HEIGHT];
+    }
+}; // end of wxDC::DoGetSize(

 
 

-static bool wx_spline_add_point(double x, double y)
+void wxDC::DoGetSizeMM(
+  int*                              pnWidth
+, int*                              pnHeight
+) const

 {
 {

-    wxPoint *point = new wxPoint;
-    point->x = (int) x;
-    point->y = (int) y;
-    wx_spline_point_list.Append((wxObject*)point);
-    return TRUE;
-}
+    LONG                            lArray[CAPS_VERTICAL_RESOLUTION];

 
 

-static void wx_spline_draw_point_array(wxDC *dc)
-{
-    dc->DrawLines(&wx_spline_point_list, 0, 0);
-    wxNode *node = wx_spline_point_list.First();
-    while (node)
+    if(::DevQueryCaps( m_hDC
+                      ,CAPS_FAMILY
+                      ,CAPS_VERTICAL_RESOLUTION
+                      ,lArray
+                     ))

     {
     {

-        wxPoint *point = (wxPoint *)node->Data();
-        delete point;
-        delete node;
-        node = wx_spline_point_list.First();
+        int                         nWidth;
+        int                         nHeight;
+        int                         nHorzRes;
+        int                         nVertRes;
+
+        nWidth    = lArray[CAPS_WIDTH];
+        nHeight   = lArray[CAPS_HEIGHT];
+        nHorzRes  = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
+        nVertRes  = lArray[CAPS_VERTICAL_RESOLUTION];   // returns pel/meter
+        nWidth  = (nHorzRes/1000) * nWidth;
+        nHeight = (nVertRes/1000) * nHeight;

     }
     }

-}
+}; // end of wxDC::DoGetSizeMM

 
 

-wxSpline::wxSpline(wxList *list)
-{
-    points = list;
-}
-
-wxSpline::~wxSpline()
+wxSize wxDC::GetPPI() const

 {
 {

-}
+    LONG                            lArray[CAPS_VERTICAL_RESOLUTION];
+    int                             nWidth;
+    int                             nHeight;

 
 

-void wxSpline::DeletePoints()
-{
-    for(wxNode *node = points->First(); node; node = points->First())
+    if(::DevQueryCaps( m_hDC
+                      ,CAPS_FAMILY
+                      ,CAPS_VERTICAL_RESOLUTION
+                      ,lArray
+                     ))

     {
     {

-        wxPoint *point = (wxPoint *)node->Data();
-        delete point;
-        delete node;
+        int                         nPelWidth;
+        int                         nPelHeight;
+        int                         nHorzRes;
+        int                         nVertRes;
+
+        nPelWidth  = lArray[CAPS_WIDTH];
+        nPelHeight = lArray[CAPS_HEIGHT];
+        nHorzRes   = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
+        nVertRes   = lArray[CAPS_VERTICAL_RESOLUTION];   // returns pel/meter
+        nWidth   = (nHorzRes/39.3) * nPelWidth;
+        nHeight  = (nVertRes/39.3) * nPelHeight;

     }
     }

-    delete points;
-}
+    return (wxSize(nWidth,nHeight));
+} // end of wxDC::GetPPI

 
 

+void wxDC::SetLogicalScale(
+  double                            dX
+, double                            dY
+)
+{
+    m_logicalScaleX = dX;
+    m_logicalScaleY = dY;
+}; // end of wxDC::SetLogicalScale

 
 

-#endif // wxUSE_SPLINES
+#if WXWIN_COMPATIBILITY
+void wxDC::DoGetTextExtent(const wxString& string, float *x, float *y,
+                         float *descent, float *externalLeading,
+                         wxFont *theFont, bool use16bit) const
+{
+    wxCoord x1, y1, descent1, externalLeading1;
+    GetTextExtent(string, & x1, & y1, & descent1, & externalLeading1, theFont, use16bit);
+    *x = x1; *y = y1;
+    if (descent)
+        *descent = descent1;
+    if (externalLeading)
+        *externalLeading = externalLeading1;
+}
+#endif