Fix for crash when opening empty node

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

diff --git a/src/os2/dc.cpp b/src/os2/dc.cpp
index 20d3f61a4ca0cd3750e1de978f2406dc8a38a1b1..3e6e349b6a5be78fd749103511c2ca87a40b8c20 100644 (file)
--- a/src/os2/dc.cpp
+++ b/src/os2/dc.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        dc.cpp
+// Name:        src/os2/dc.cpp

 // Purpose:     wxDC class
 // Author:      David Webster
 // Modified by:
 // Purpose:     wxDC class
 // Author:      David Webster
 // Modified by:


@@ -23,35 +23,34 @@
     #include "wx/log.h"
     #include "wx/icon.h"
     #include "wx/msgdlg.h"
     #include "wx/log.h"
     #include "wx/icon.h"
     #include "wx/msgdlg.h"

+    #include "wx/dcprint.h"
+    #include "wx/statusbr.h"

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

-#include "wx/dcprint.h"
-

 #include <string.h>
 #include <string.h>

-#include <math.h>

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

-    IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
+IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)

 
 //
 
 //

-// wxWindows uses the Microsoft convention that the origin is the UPPER left.
+// wxWidgets 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.
 // 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
+// In order to map OS/2 GPI/PM y coordinates to wxWidgets coordinates we must

 // perform the following transformation:
 //
 // Parent object height:     POBJHEIGHT
 // Desried origin:           WXORIGINY
 // Object to place's height: OBJHEIGHT
 //
 // 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:
+// To get the OS2 position from the wxWidgets 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
 //
 // 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.
+// desired application's y coordinate of the origin in wxWidgets 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))
 // objy is the height of the object we are going to draw.
 //
 #define OS2Y(y, objy) ((m_vRclPaint.yTop - m_vRclPaint.yBottom) - (y + objy))


@@ -65,11 +64,6 @@ static const int VIEWPORT_EXTENT = 1000;
 static const int MM_POINTS = 9;
 static const int MM_METRIC = 10;
 
 static const int MM_POINTS = 9;
 static const int MM_METRIC = 10;
 

-// usually this is defined in math.h
-#ifndef M_PI
-    static const double M_PI = 3.14159265358979323846;
-#endif // M_PI
-

 // ---------------------------------------------------------------------------
 // private functions
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // private functions
 // ---------------------------------------------------------------------------


@@ -224,7 +218,7 @@ wxDCCacheEntry* wxDC::FindBitmapInCache(
                 vBmpHdr.cx        = nWidth;
                 vBmpHdr.cy        = nHeight;
                 vBmpHdr.cPlanes   = 1;
                 vBmpHdr.cx        = nWidth;
                 vBmpHdr.cy        = nHeight;
                 vBmpHdr.cPlanes   = 1;

-                vBmpHdr.cBitCount = nDepth;
+                vBmpHdr.cBitCount = (USHORT)nDepth;

 
                 pEntry->m_hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS
                                                                   ,&vBmpHdr
 
                 pEntry->m_hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS
                                                                   ,&vBmpHdr


@@ -247,7 +241,7 @@ wxDCCacheEntry* wxDC::FindBitmapInCache(
     vBmpHdr.cx        = nWidth;
     vBmpHdr.cy        = nHeight;
     vBmpHdr.cPlanes   = 1;
     vBmpHdr.cx        = nWidth;
     vBmpHdr.cy        = nHeight;
     vBmpHdr.cPlanes   = 1;

-    vBmpHdr.cBitCount = nDepth;
+    vBmpHdr.cBitCount = (USHORT)nDepth;

 
     WXHBITMAP                       hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS
                                                                             ,&vBmpHdr
 
     WXHBITMAP                       hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS
                                                                             ,&vBmpHdr


@@ -313,19 +307,19 @@ void wxDC::AddToDCCache(
 
 void wxDC::ClearCache()
 {
 
 void wxDC::ClearCache()
 {

-    m_svBitmapCache.DeleteContents(TRUE);
+    m_svBitmapCache.DeleteContents(true);

     m_svBitmapCache.Clear();
     m_svBitmapCache.Clear();

-    m_svBitmapCache.DeleteContents(FALSE);
-    m_svDCCache.DeleteContents(TRUE);
+    m_svBitmapCache.DeleteContents(false);
+    m_svDCCache.DeleteContents(true);

     m_svDCCache.Clear();
     m_svDCCache.Clear();

-    m_svDCCache.DeleteContents(FALSE);
+    m_svDCCache.DeleteContents(false);

 } // end of wxDC::ClearCache
 
 // Clean up cache at app exit
 class wxDCModule : public wxModule
 {
 public:
 } // end of wxDC::ClearCache
 
 // Clean up cache at app exit
 class wxDCModule : public wxModule
 {
 public:

-    virtual bool OnInit() { return TRUE; }
+    virtual bool OnInit() { return true; }

     virtual void OnExit() { wxDC::ClearCache(); }
 
 private:
     virtual void OnExit() { wxDC::ClearCache(); }
 
 private:


@@ -342,8 +336,6 @@ IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule)
 
 wxDC::wxDC(void)
 {
 
 wxDC::wxDC(void)
 {

-    wxColour                        vColor;
-

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


@@ -352,16 +344,15 @@ wxDC::wxDC(void)
     m_hOldFont     = 0;
     m_hOldPalette  = 0;
 
     m_hOldFont     = 0;
     m_hOldPalette  = 0;
 

-    m_bOwnsDC      = FALSE;
+    m_bOwnsDC      = false;

     m_hDC          = 0;
     m_hOldPS       = NULL;
     m_hPS          = NULL;
     m_hDC          = 0;
     m_hOldPS       = NULL;
     m_hPS          = NULL;

-    m_bIsPaintTime = FALSE; // True at Paint Time
+    m_bIsPaintTime = false; // True at Paint Time
+
+    m_pen.SetColour(*wxBLACK);
+    m_brush.SetColour(*wxWHITE);

 
 

-    vColor.InitFromName("BLACK");
-    m_pen.SetColour(vColor);
-    vColor.Set("WHITE");
-    m_brush.SetColour(vColor);

 } // end of wxDC::wxDC
 
 wxDC::~wxDC(void)
 } // end of wxDC::wxDC
 
 wxDC::~wxDC(void)


@@ -456,7 +447,7 @@ void wxDC::DoSetClippingRegion(
     RECTL                           vRect;
 
     vY = OS2Y(vY,vHeight);
     RECTL                           vRect;
 
     vY = OS2Y(vY,vHeight);

-    m_clipping    = TRUE;
+    m_clipping    = true;

     vRect.xLeft   = vX;
     vRect.yTop    = vY + vHeight;
     vRect.xRight  = vX + vWidth;
     vRect.xLeft   = vX;
     vRect.yTop    = vY + vHeight;
     vRect.xRight  = vX + vWidth;


@@ -472,7 +463,7 @@ void wxDC::DoSetClippingRegionAsRegion(
      wxCHECK_RET(rRegion.GetHRGN(), wxT("invalid clipping region"));
      HRGN                           hRgnOld;
 
      wxCHECK_RET(rRegion.GetHRGN(), wxT("invalid clipping region"));
      HRGN                           hRgnOld;
 

-     m_clipping = TRUE;
+     m_clipping = true;

      ::GpiSetClipRegion( m_hPS
                         ,(HRGN)rRegion.GetHRGN()
                         ,&hRgnOld
      ::GpiSetClipRegion( m_hPS
                         ,(HRGN)rRegion.GetHRGN()
                         ,&hRgnOld


@@ -500,7 +491,7 @@ void wxDC::DestroyClippingRegion(void)
 
          ::GpiSetClipRegion(m_hPS, hRgn, &hRgnOld);
      }
 
          ::GpiSetClipRegion(m_hPS, hRgn, &hRgnOld);
      }

-      m_clipping = FALSE;
+    ResetClipping();

 } // end of wxDC::DestroyClippingRegion
 
 // ---------------------------------------------------------------------------
 } // end of wxDC::DestroyClippingRegion
 
 // ---------------------------------------------------------------------------


@@ -509,7 +500,7 @@ void wxDC::DestroyClippingRegion(void)
 
 bool wxDC::CanDrawBitmap() const
 {
 
 bool wxDC::CanDrawBitmap() const
 {

-    return TRUE;
+    return true;

 }
 
 bool wxDC::CanGetTextExtent() const
 }
 
 bool wxDC::CanGetTextExtent() const


@@ -523,7 +514,7 @@ bool wxDC::CanGetTextExtent() const
 int wxDC::GetDepth() const
 {
     LONG                            lArray[CAPS_COLOR_BITCOUNT];
 int wxDC::GetDepth() const
 {
     LONG                            lArray[CAPS_COLOR_BITCOUNT];

-    int                             nBitsPerPixel;
+    int                             nBitsPerPixel = 0;

 
     if(::DevQueryCaps( GetHDC()
                       ,CAPS_FAMILY
 
     if(::DevQueryCaps( GetHDC()
                       ,CAPS_FAMILY


@@ -568,7 +559,7 @@ bool wxDC::DoFloodFill(
     LONG                            lColor;
     LONG                            lOptions;
     LONG                            lHits;
     LONG                            lColor;
     LONG                            lOptions;
     LONG                            lHits;

-    bool                            bSuccess = FALSE;
+    bool                            bSuccess = false;

 
     vPtlPos.x = vX;             // Loads x-coordinate
     vPtlPos.y = OS2Y(vY,0);     // Loads y-coordinate
 
     vPtlPos.x = vX;             // Loads x-coordinate
     vPtlPos.y = OS2Y(vY,0);     // Loads y-coordinate


@@ -579,8 +570,9 @@ bool wxDC::DoFloodFill(
         lOptions = FF_SURFACE;
 
     if ((lHits = ::GpiFloodFill(m_hPS, lOptions, lColor)) != GPI_ERROR)
         lOptions = FF_SURFACE;
 
     if ((lHits = ::GpiFloodFill(m_hPS, lOptions, lColor)) != GPI_ERROR)

-        bSuccess = TRUE;
-    return TRUE;
+        bSuccess = true;
+
+    return bSuccess;

 } // end of wxDC::DoFloodFill
 
 bool wxDC::DoGetPixel(
 } // end of wxDC::DoFloodFill
 
 bool wxDC::DoGetPixel(


@@ -594,17 +586,7 @@ bool wxDC::DoGetPixel(
 
     vPoint.x = vX;
     vPoint.y = OS2Y(vY,0);
 
     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();
-    }
+    lColor = ::GpiQueryPel(m_hPS, &vPoint);

 
     //
     // return the color of the pixel
 
     //
     // return the color of the pixel


@@ -614,7 +596,7 @@ bool wxDC::DoGetPixel(
                   ,GetGValue(lColor)
                   ,GetBValue(lColor)
                  );
                   ,GetGValue(lColor)
                   ,GetBValue(lColor)
                  );

-    return(lColor == lPencolor);
+    return true;

 } // end of wxDC::DoGetPixel
 
 void wxDC::DoCrossHair(
 } // end of wxDC::DoGetPixel
 
 void wxDC::DoCrossHair(


@@ -674,7 +656,7 @@ void wxDC::DoDrawLine(
     }
     else
     {
     }
     else
     {

-        if (m_vSelectedBitmap != wxNullBitmap)
+        if (m_vSelectedBitmap.Ok())

         {
             m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
             m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
         {
             m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
             m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();


@@ -714,8 +696,6 @@ void wxDC::DoDrawArc(
 {
      POINTL                         vPtlPos;
      POINTL                         vPtlArc[2]; // Structure for current position
 {
      POINTL                         vPtlPos;
      POINTL                         vPtlArc[2]; // Structure for current position

-     int                            nDx;
-     int                            nDy;

      double                         dRadius;
      double                         dAngl1;
      double                         dAngl2;
      double                         dRadius;
      double                         dAngl1;
      double                         dAngl2;


@@ -752,8 +732,8 @@ void wxDC::DoDrawArc(
         // Medium point
         //
         dAnglmid = (dAngl1 + dAngl2)/2. + M_PI;
         // Medium point
         //
         dAnglmid = (dAngl1 + dAngl2)/2. + M_PI;

-        vXm      = vXc + dRadius * cos(dAnglmid);
-        vYm      = vYc + dRadius * sin(dAnglmid);
+        vXm      = (wxCoord)(vXc + dRadius * cos(dAnglmid));
+        vYm      = (wxCoord)(vYc + dRadius * sin(dAnglmid));

         DoDrawArc( vX1, vY1
                   ,vXm, vYm
                   ,vXc, vYc
         DoDrawArc( vX1, vY1
                   ,vXm, vYm
                   ,vXc, vYc


@@ -769,8 +749,8 @@ void wxDC::DoDrawArc(
     // Medium point
     //
     dAnglmid = (dAngl1 + dAngl2)/2.;
     // Medium point
     //
     dAnglmid = (dAngl1 + dAngl2)/2.;

-    vXm      = vXc + dRadius * cos(dAnglmid);
-    vYm      = vYc + dRadius * sin(dAnglmid);
+    vXm      = (wxCoord)(vXc + dRadius * cos(dAnglmid));
+    vYm      = (wxCoord)(vYc + dRadius * sin(dAnglmid));

 
     //
     // Ellipse main axis (r,q), (p,s) with center at (0,0) */
 
     //
     // Ellipse main axis (r,q), (p,s) with center at (0,0) */


@@ -789,11 +769,11 @@ void wxDC::DoDrawArc(
     vPtlArc[1].x = vX2;
     vPtlArc[1].y = vY2;
     ::GpiPointArc(m_hPS, vPtlArc); // Draws the arc
     vPtlArc[1].x = vX2;
     vPtlArc[1].y = vY2;
     ::GpiPointArc(m_hPS, vPtlArc); // Draws the arc

-    CalcBoundingBox( (vXc - dRadius)
-                    ,(vYc - dRadius)
+    CalcBoundingBox( (wxCoord)(vXc - dRadius)
+                    ,(wxCoord)(vYc - dRadius)

                    );
                    );

-    CalcBoundingBox( (vXc + dRadius)
-                    ,(vYc + dRadius)
+    CalcBoundingBox( (wxCoord)(vXc + dRadius)
+                    ,(wxCoord)(vYc + dRadius)

                    );
 } // end of wxDC::DoDrawArc
 
                    );
 } // end of wxDC::DoDrawArc
 


@@ -867,47 +847,44 @@ void wxDC::DoDrawPoint(
                    );
 } // end of wxDC::DoDrawPoint
 
                    );
 } // end of wxDC::DoDrawPoint
 

-void wxDC::DoDrawPolygon(
-  int                               n
-, wxPoint                           vPoints[]
-, wxCoord                           vXoffset
-, wxCoord                           vYoffset
-, int                               nFillStyle
-)
+void wxDC::DoDrawPolygon( int n,
+                          wxPoint vPoints[],
+                          wxCoord vXoffset,
+                          wxCoord vYoffset,
+                          int nFillStyle )

 {
 {

-    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     ulCount = 1;    // Number of polygons.
+    POLYGON   vPlgn;          // polygon.
+    ULONG     flOptions = 0L; // Drawing options.

 
 

-    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;
+    //////////////////////////////////////////////////////////////////////////////
+    // 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 = POLYGON_INCL; // 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.
+    int       i;
+    int       nIsTRANSPARENT = 0;
+    LONG      lBorderColor = 0L;
+    LONG      lColor = 0L;

 
     lBorderColor = m_pen.GetColour().GetPixel();
     lColor       = m_brush.GetColour().GetPixel();
 
     lBorderColor = m_pen.GetColour().GetPixel();
     lColor       = m_brush.GetColour().GetPixel();


@@ -921,20 +898,17 @@ void wxDC::DoDrawPolygon(
 
     for(i = 0; i < n; i++)
     {
 
     for(i = 0; i < n; i++)
     {

-        vPlgn.aPointl[i].x = vPoints[i].x;         // +xoffset;
-        vPlgn.aPointl[i].y = OS2Y(vPoints[i].y,0); // +yoffset;
+        vPlgn.aPointl[i].x = vPoints[i].x+vXoffset;
+        vPlgn.aPointl[i].y = OS2Y(vPoints[i].y+vYoffset,0);

     }
     }

-    flModel = POLYGON_BOUNDARY;
+    flOptions = POLYGON_BOUNDARY;

     if(nFillStyle == wxWINDING_RULE)
     if(nFillStyle == wxWINDING_RULE)

-        flModel |= POLYGON_WINDING;
+        flOptions |= POLYGON_WINDING;

     else
     else

-        flModel |= POLYGON_ALTERNATE;
-
-    vPoint.x = vXoffset;
-    vPoint.y = OS2Y(vYoffset,0);
+        flOptions |= POLYGON_ALTERNATE;

 
     ::GpiSetColor(m_hPS, lBorderColor);
 
     ::GpiSetColor(m_hPS, lBorderColor);

-    ::GpiMove(m_hPS, &vPoint);
+    ::GpiMove(m_hPS, &vPlgn.aPointl[0]);

     lHits = ::GpiPolygons(m_hPS, ulCount, &vPlgn, flOptions, flModel);
     free(vPlgn.aPointl);
 } // end of wxDC::DoDrawPolygon
     lHits = ::GpiPolygons(m_hPS, ulCount, &vPlgn, flOptions, flModel);
     free(vPlgn.aPointl);
 } // end of wxDC::DoDrawPolygon


@@ -970,8 +944,8 @@ void wxDC::DoDrawLines(
     {
         int                         i;
 
     {
         int                         i;
 

-        CalcBoundingBox( vPoints[i].x
-                        ,vPoints[i].y
+        CalcBoundingBox( vPoints[0].x
+                        ,vPoints[0].y

                        );
         vPoint.x = vPoints[0].x;
         vPoint.y = OS2Y(vPoints[0].y,0);
                        );
         vPoint.x = vPoints[0].x;
         vPoint.y = OS2Y(vPoints[0].y,0);


@@ -1012,7 +986,7 @@ void wxDC::DoDrawRectangle(
         vY = OS2Y(vY,vHeight);
     else
     {
         vY = OS2Y(vY,vHeight);
     else
     {

-        if (m_vSelectedBitmap != wxNullBitmap)
+        if (m_vSelectedBitmap.Ok())

         {
             m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
             m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
         {
             m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
             m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();


@@ -1038,7 +1012,7 @@ void wxDC::DoDrawRectangle(
         if(m_brush.GetStyle() == wxTRANSPARENT)
             lControl = DRO_OUTLINE;
 
         if(m_brush.GetStyle() == wxTRANSPARENT)
             lControl = DRO_OUTLINE;
 

-        ::GpiSetColor(m_hPS, lColor);
+        ::GpiSetColor(m_hPS, lBorderColor);

         ::GpiBox( m_hPS       // handle to a presentation space
                  ,lControl   // draw the box outline ? or ?
                  ,&vPoint[1]  // address of the corner
         ::GpiBox( m_hPS       // handle to a presentation space
                  ,lControl   // draw the box outline ? or ?
                  ,&vPoint[1]  // address of the corner


@@ -1102,7 +1076,7 @@ void wxDC::DoDrawRoundedRectangle(
         vY = OS2Y(vY,vHeight);
     else
     {
         vY = OS2Y(vY,vHeight);
     else
     {

-        if (m_vSelectedBitmap != wxNullBitmap)
+        if (m_vSelectedBitmap.Ok())

         {
             m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
             m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
         {
             m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
             m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();


@@ -1230,7 +1204,6 @@ void wxDC::DoDrawEllipticArc(
     FIXED                           vFSweepa; // Start angle, sweep angle
     double                          dIntPart;
     double                          dFractPart;
     FIXED                           vFSweepa; // Start angle, sweep angle
     double                          dIntPart;
     double                          dFractPart;

-    double                          dRadius;

 
     vY = OS2Y(vY,vHeight);
 
 
     vY = OS2Y(vY,vHeight);
 


@@ -1247,8 +1220,8 @@ void wxDC::DoDrawEllipticArc(
     vArcp.lP = vWidth/2;
     vArcp.lS = 0;
     ::GpiSetArcParams(m_hPS, &vArcp); // Sets parameters to default
     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
+    vPtlPos.x = (wxCoord)(vX + vWidth/2  * (1. + cos(DegToRad(dSa)))); // Loads x-coordinate
+    vPtlPos.y = (wxCoord)(vY + vHeight/2 * (1. + sin(DegToRad(dSa)))); // Loads y-coordinate

     ::GpiMove(m_hPS, &vPtlPos); // Sets current position
 
     //
     ::GpiMove(m_hPS, &vPtlPos); // Sets current position
 
     //


@@ -1283,17 +1256,17 @@ void wxDC::DoDrawIcon(
     //
     // Need to copy back into a bitmap.  ::WinDrawPointer uses device coords
     // and I don't feel like figuring those out for scrollable windows so
     //
     // Need to copy back into a bitmap.  ::WinDrawPointer uses device coords
     // and I don't feel like figuring those out for scrollable windows so

-    // just convert to a bitmap then let the DoDrawBitmap routing display it
+    // just convert to a bitmap then let the DoDrawBitmap routine display it

     //
     if (rIcon.IsXpm())
     {
     //
     if (rIcon.IsXpm())
     {

-        DoDrawBitmap(rIcon.GetXpmSrc(), vX, vY, TRUE);
+        DoDrawBitmap(rIcon.GetXpmSrc(), vX, vY, true);

     }
     else
     {
         wxBitmap                        vBitmap(rIcon);
 
     }
     else
     {
         wxBitmap                        vBitmap(rIcon);
 

-        DoDrawBitmap(vBitmap, vX, vY, FALSE);
+        DoDrawBitmap(vBitmap, vX, vY, false);

     }
     CalcBoundingBox(vX, vY);
     CalcBoundingBox(vX + rIcon.GetWidth(), vY + rIcon.GetHeight());
     }
     CalcBoundingBox(vX, vY);
     CalcBoundingBox(vX + rIcon.GetWidth(), vY + rIcon.GetHeight());


@@ -1306,10 +1279,12 @@ void wxDC::DoDrawBitmap(
 , bool                              bUseMask
 )
 {
 , bool                              bUseMask
 )
 {

+#if wxUSE_PRINTING_ARCHITECTURE

     if (!IsKindOf(CLASSINFO(wxPrinterDC)))
     if (!IsKindOf(CLASSINFO(wxPrinterDC)))

+#endif

     {
         HBITMAP                         hBitmap =  (HBITMAP)rBmp.GetHBITMAP();
     {
         HBITMAP                         hBitmap =  (HBITMAP)rBmp.GetHBITMAP();

-        HBITMAP                         hBitmapOld;
+        HBITMAP                         hBitmapOld = NULLHANDLE;

         POINTL                          vPoint[4];
 
         vY = OS2Y(vY,rBmp.GetHeight());
         POINTL                          vPoint[4];
 
         vY = OS2Y(vY,rBmp.GetHeight());


@@ -1390,19 +1365,19 @@ void wxDC::DoDrawBitmap(
                 //
                 // Need to get a background color for mask blitting
                 //
                 //
                 // Need to get a background color for mask blitting
                 //

-                if (IsKindOf(CLASSINFO(wxPaintDC)))
+                if (IsKindOf(CLASSINFO(wxWindowDC)))

                 {
                     wxWindowDC*             pWindowDC = wxDynamicCast(this, wxWindowDC);
 
                     lColor = pWindowDC->m_pCanvas->GetBackgroundColour().GetPixel();
                 }
                 {
                     wxWindowDC*             pWindowDC = wxDynamicCast(this, wxWindowDC);
 
                     lColor = pWindowDC->m_pCanvas->GetBackgroundColour().GetPixel();
                 }

-                else if (GetBrush() != wxNullBrush)
+                else if (GetBrush().Ok())

                     lColor = GetBrush().GetColour().GetPixel();
                 else
                     lColor = m_textBackgroundColour.GetPixel();
 
                 //
                     lColor = GetBrush().GetColour().GetPixel();
                 else
                     lColor = m_textBackgroundColour.GetPixel();
 
                 //

-                // Bitmap must be ina double-word alligned address so we may
+                // Bitmap must be in a double-word aligned address so we may

                 // have some padding to worry about
                 //
                 if (nLineBoundary > 0)
                 // have some padding to worry about
                 //
                 if (nLineBoundary > 0)


@@ -1560,8 +1535,8 @@ void wxDC::DoDrawBitmap(
         }
         else
         {
         }
         else
         {

-            LONG                        lOldForeGround = ::GpiQueryColor((HPS)GetHPS());
-            LONG                        lOldBackGround = ::GpiQueryBackColor((HPS)GetHPS());
+            ULONG                       lOldForeGround = ::GpiQueryColor((HPS)GetHPS());
+            ULONG                       lOldBackGround = ::GpiQueryBackColor((HPS)GetHPS());

 
             if (m_textForegroundColour.Ok())
             {
 
             if (m_textForegroundColour.Ok())
             {


@@ -1633,10 +1608,6 @@ void wxDC::DoDrawBitmap(
                 unsigned char           cOldGreenFore = (unsigned char)(lOldForeGround >> 8);
                 unsigned char           cOldBlueFore  = (unsigned char)lOldForeGround;
 
                 unsigned char           cOldGreenFore = (unsigned char)(lOldForeGround >> 8);
                 unsigned char           cOldBlueFore  = (unsigned char)lOldForeGround;
 

-                unsigned char           cOldRedBack   = (unsigned char)(lOldBackGround >> 16);
-                unsigned char           cOldGreenBack = (unsigned char)(lOldBackGround >> 8);
-                unsigned char           cOldBlueBack  = (unsigned char)lOldBackGround;
-

                 unsigned char           cRedFore   = (unsigned char)(lForeGround >> 16);
                 unsigned char           cGreenFore = (unsigned char)(lForeGround >> 8);
                 unsigned char           cBlueFore  = (unsigned char)lForeGround;
                 unsigned char           cRedFore   = (unsigned char)(lForeGround >> 16);
                 unsigned char           cGreenFore = (unsigned char)(lForeGround >> 8);
                 unsigned char           cBlueFore  = (unsigned char)lForeGround;


@@ -1725,11 +1696,9 @@ void wxDC::DoDrawText(
     CalcBoundingBox((vX + vWidth), (vY + vHeight));
 } // end of wxDC::DoDrawText
 
     CalcBoundingBox((vX + vWidth), (vY + vHeight));
 } // end of wxDC::DoDrawText
 

-void wxDC::DrawAnyText(
-  const wxString&                   rsText
-, wxCoord                           vX
-, wxCoord                           vY
-)
+void wxDC::DrawAnyText( const wxString& rsText,
+                        wxCoord vX,
+                        wxCoord vY )

 {
     int                             nOldBackground = 0;
     POINTL                          vPtlStart;
 {
     int                             nOldBackground = 0;
     POINTL                          vPtlStart;


@@ -1769,25 +1738,25 @@ void wxDC::DrawAnyText(
           m_vRclPaint.yBottom == 0 &&
           m_vRclPaint.xRight == 0 &&
           m_vRclPaint.xLeft == 0))
           m_vRclPaint.yBottom == 0 &&
           m_vRclPaint.xRight == 0 &&
           m_vRclPaint.xLeft == 0))

-        vPtlStart.y = OS2Y(vY,vTextY/1.5); // Full extent is a bit much
+    {
+        vPtlStart.y = OS2Y(vY,vTextY);
+    }

     else
     {
     else
     {

-        if (m_vSelectedBitmap != wxNullBitmap)
+        if (m_vSelectedBitmap.Ok())

         {
             m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
             m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
         {
             m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
             m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();

-            vPtlStart.y = OS2Y(vY,vTextY/1.5);
+            vPtlStart.y = OS2Y(vY,vTextY);

         }
         else
             vPtlStart.y = vY;
     }
 
         }
         else
             vPtlStart.y = vY;
     }
 

-    PCH                             pzStr = (PCH)rsText.c_str();
-

     ::GpiMove(m_hPS, &vPtlStart);
     lHits = ::GpiCharString( m_hPS
                             ,rsText.length()
     ::GpiMove(m_hPS, &vPtlStart);
     lHits = ::GpiCharString( m_hPS
                             ,rsText.length()

-                            ,pzStr
+                            ,rsText.char_str()

                            );
     if (lHits != GPI_OK)
     {
                            );
     if (lHits != GPI_OK)
     {


@@ -1879,9 +1848,7 @@ void wxDC::DoDrawRotatedText(
 // set GDI objects
 // ---------------------------------------------------------------------------
 
 // set GDI objects
 // ---------------------------------------------------------------------------
 

-void wxDC::DoSelectPalette(
-  bool                              bRealize
-)
+void wxDC::DoSelectPalette( bool WXUNUSED(bRealize) )

 {
     //
     // Set the old object temporarily, in case the assignment deletes an object
 {
     //
     // Set the old object temporarily, in case the assignment deletes an object


@@ -2051,73 +2018,33 @@ void wxDC::SetBrush(
     }
 } // end of wxDC::SetBrush
 
     }
 } // end of wxDC::SetBrush
 

-void wxDC::SetBackground(
-  const wxBrush&                    rBrush
-)
+void wxDC::SetBackground(const wxBrush& rBrush)

 {
     m_backgroundBrush = rBrush;
 {
     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);
-            }
-        }
+    if (m_backgroundBrush.Ok())
+    {
+        (void)::GpiSetBackColor((HPS)m_hPS, m_backgroundBrush.GetColour().GetPixel());

     }
     }

-    COLORREF                        vNewColor = m_backgroundBrush.GetColour().GetPixel();
-    (void)::GpiSetBackColor((HPS)m_hPS, (LONG)vNewColor);

 } // end of wxDC::SetBackground
 
 } // end of wxDC::SetBackground
 

-void wxDC::SetBackgroundMode(
-  int                               nMode
-)
+void wxDC::SetBackgroundMode(int nMode)

 {
     m_backgroundMode = nMode;
 } // end of wxDC::SetBackgroundMode
 
 {
     m_backgroundMode = nMode;
 } // end of wxDC::SetBackgroundMode
 

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

 {
     m_logicalFunction = nFunction;
     SetRop((WXHDC)m_hDC);
 } // wxDC::SetLogicalFunction
 
 {
     m_logicalFunction = nFunction;
     SetRop((WXHDC)m_hDC);
 } // wxDC::SetLogicalFunction
 

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

 {
     if (!hDC || m_logicalFunction < 0)
         return;
 
 {
     if (!hDC || m_logicalFunction < 0)
         return;
 

-    LONG                            lCRop;
+    LONG lCRop;

     switch (m_logicalFunction)
     {
         case wxXOR:
     switch (m_logicalFunction)
     {
         case wxXOR:


@@ -2174,12 +2101,10 @@ void wxDC::SetRop(
     ::GpiSetMix((HPS)hDC, lCRop);
 } // end of wxDC::SetRop
 
     ::GpiSetMix((HPS)hDC, lCRop);
 } // end of wxDC::SetRop
 

-bool wxDC::StartDoc(
-  const wxString&                   rsMessage
-)
+bool wxDC::StartDoc( const wxString& WXUNUSED(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()
 } // end of wxDC::StartDoc
 
 void wxDC::EndDoc()


@@ -2226,7 +2151,7 @@ void wxDC::DoGetTextExtent(
 , wxCoord*                          pvY
 , wxCoord*                          pvDescent
 , wxCoord*                          pvExternalLeading
 , wxCoord*                          pvY
 , wxCoord*                          pvDescent
 , wxCoord*                          pvExternalLeading

-, wxFont*                           pTheFont
+, const wxFont*                     pTheFont

 ) const
 {
     POINTL                          avPoint[TXTBOX_COUNT];
 ) const
 {
     POINTL                          avPoint[TXTBOX_COUNT];


@@ -2236,24 +2161,22 @@ void wxDC::DoGetTextExtent(
     int                             l;
     FONTMETRICS                     vFM; // metrics structure
     BOOL                            bRc;
     int                             l;
     FONTMETRICS                     vFM; // metrics structure
     BOOL                            bRc;

-    char*                           pStr;

     ERRORID                         vErrorCode; // last error id code
     wxFont*                         pFontToUse = (wxFont*)pTheFont;
 
     ERRORID                         vErrorCode; // last error id code
     wxFont*                         pFontToUse = (wxFont*)pTheFont;
 

-    char                            zMsg[128]; // DEBUG
+    wxChar                          zMsg[128]; // DEBUG

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

-    pStr = (PCH) rsString.c_str();

 
     //
     // In world coordinates.
     //
     bRc = ::GpiQueryTextBox( m_hPS
                             ,l
 
     //
     // In world coordinates.
     //
     bRc = ::GpiQueryTextBox( m_hPS
                             ,l

-                            ,pStr
+                            ,rsString.char_str()

                             ,TXTBOX_COUNT // return maximum information
                             ,avPoint      // array of coordinates points
                            );
                             ,TXTBOX_COUNT // return maximum information
                             ,avPoint      // array of coordinates points
                            );


@@ -2262,8 +2185,8 @@ void wxDC::DoGetTextExtent(
        vErrorCode = ::WinGetLastError(wxGetInstance());
        sError = wxPMErrorToStr(vErrorCode);
        // DEBUG
        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"
+       wxSprintf(zMsg, _T("GpiQueryTextBox for %s: failed with Error: %lx - %s"), rsString.c_str(), vErrorCode, sError.c_str());
+       (void)wxMessageBox( _T("wxWidgets Menu sample")

                           ,zMsg
                           ,wxICON_INFORMATION
                          );
                           ,zMsg
                           ,wxICON_INFORMATION
                          );


@@ -2371,12 +2294,13 @@ void wxDC::SetMapMode(
     m_nWindowExtX = (int)MS_XDEV2LOG(VIEWPORT_EXTENT);
     m_nWindowExtY = (int)MS_YDEV2LOG(VIEWPORT_EXTENT);
     // ????
     m_nWindowExtX = (int)MS_XDEV2LOG(VIEWPORT_EXTENT);
     m_nWindowExtY = (int)MS_YDEV2LOG(VIEWPORT_EXTENT);
     // ????

+    
+    ComputeScaleAndOrigin();
+    

 }; // end of wxDC::SetMapMode
 
 }; // end of wxDC::SetMapMode
 

-void wxDC::SetUserScale(
-  double                            dX
-, double                            dY
-)
+void wxDC::SetUserScale( double dX,
+                         double dY )

 {
     m_userScaleX = dX;
     m_userScaleY = dY;
 {
     m_userScaleX = dX;
     m_userScaleY = dY;


@@ -2384,10 +2308,8 @@ void wxDC::SetUserScale(
     SetMapMode(m_mappingMode);
 } // end of wxDC::SetUserScale
 
     SetMapMode(m_mappingMode);
 } // end of wxDC::SetUserScale
 

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

 {
     m_signX = bXLeftRight ? 1 : -1;
     m_signY = bYBottomUp ? -1 : 1;
 {
     m_signX = bXLeftRight ? 1 : -1;
     m_signY = bYBottomUp ? -1 : 1;


@@ -2395,17 +2317,6 @@ void wxDC::SetAxisOrientation(
     SetMapMode(m_mappingMode);
 } // end of wxDC::SetAxisOrientation
 
     SetMapMode(m_mappingMode);
 } // end of wxDC::SetAxisOrientation
 

-void wxDC::SetSystemScale(
-  double                            dX
-, double                            dY
-)
-{
-    m_scaleX = dX;
-    m_scaleY = dY;
-
-    SetMapMode(m_mappingMode);
-} // end of wxDC::SetSystemScale
-

 void wxDC::SetLogicalOrigin(
   wxCoord                           vX
 , wxCoord                           vY
 void wxDC::SetLogicalOrigin(
   wxCoord                           vX
 , wxCoord                           vY


@@ -2446,71 +2357,21 @@ void wxDC::SetDeviceOrigin(
                         );
 }; // end of wxDC::SetDeviceOrigin
 
                         );
 }; // end of wxDC::SetDeviceOrigin
 

-// ---------------------------------------------------------------------------
-// coordinates transformations
-// ---------------------------------------------------------------------------
-
-wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
-{
-    return (wxCoord) (((x) - m_deviceOriginX)/(m_logicalScaleX*m_userScaleX*m_signX*m_scaleX) - m_logicalOriginX);
-}
-
-wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
-{
-       // axis orientation is not taken into account for conversion of a distance
-    return (wxCoord) ((x)/(m_logicalScaleX*m_userScaleX*m_scaleX));
-}
-
-wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
-{
-    return (wxCoord) (((y) - m_deviceOriginY)/(m_logicalScaleY*m_userScaleY*m_signY*m_scaleY) - m_logicalOriginY);
-}
-
-wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
-{
-       // axis orientation is not taken into account for conversion of a distance
-    return (wxCoord) ((y)/(m_logicalScaleY*m_userScaleY*m_scaleY));
-}
-
-wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
-{
-    return (wxCoord) ((x - m_logicalOriginX)*m_logicalScaleX*m_userScaleX*m_signX*m_scaleX + m_deviceOriginX);
-}
-
-wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
-{
-       // axis orientation is not taken into account for conversion of a distance
-    return (wxCoord) (x*m_logicalScaleX*m_userScaleX*m_scaleX);
-}
-
-wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
-{
-    return (wxCoord) ((y - m_logicalOriginY)*m_logicalScaleY*m_userScaleY*m_signY*m_scaleY + m_deviceOriginY);
-}
-
-wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
-{
-       // axis orientation is not taken into account for conversion of a distance
-    return (wxCoord) (y*m_logicalScaleY*m_userScaleY*m_scaleY);
-}
-

 // ---------------------------------------------------------------------------
 // bit blit
 // ---------------------------------------------------------------------------
 
 // ---------------------------------------------------------------------------
 // bit blit
 // ---------------------------------------------------------------------------
 

-bool wxDC::DoBlit(
-  wxCoord                           vXdest
-, wxCoord                           vYdest
-, wxCoord                           vWidth
-, wxCoord                           vHeight
-, wxDC*                             pSource
-, wxCoord                           vXsrc
-, wxCoord                           vYsrc
-, int                               nRop
-, bool                              bUseMask
-, wxCoord                           vXsrcMask
-, wxCoord                           vYsrcMask
-)
+bool wxDC::DoBlit( wxCoord vXdest,
+                   wxCoord vYdest,
+                   wxCoord vWidth,
+                   wxCoord vHeight,
+                   wxDC*   pSource,
+                   wxCoord vXsrc,
+                   wxCoord vYsrc,
+                   int     nRop,
+                   bool    bUseMask,
+                   wxCoord WXUNUSED(vXsrcMask),
+                   wxCoord WXUNUSED(vYsrcMask) )

 {
     wxMask*                         pMask = NULL;
     CHARBUNDLE                      vCbnd;
 {
     wxMask*                         pMask = NULL;
     CHARBUNDLE                      vCbnd;


@@ -2524,7 +2385,7 @@ bool wxDC::DoBlit(
         pMask = rBmp.GetMask();
         if (!(rBmp.Ok() && pMask && pMask->GetMaskBitmap()))
         {
         pMask = rBmp.GetMask();
         if (!(rBmp.Ok() && pMask && pMask->GetMaskBitmap()))
         {

-            bUseMask = FALSE;
+            bUseMask = false;

         }
     }
 
         }
     }
 


@@ -2572,7 +2433,7 @@ bool wxDC::DoBlit(
         case wxNOR:          lRop = ROP_NOTSRCCOPY;       break;
         default:
            wxFAIL_MSG( wxT("unsupported logical function") );
         case wxNOR:          lRop = ROP_NOTSRCCOPY;       break;
         default:
            wxFAIL_MSG( wxT("unsupported logical function") );

-           return FALSE;
+           return false;

     }
 
     bool                            bSuccess;
     }
 
     bool                            bSuccess;


@@ -2604,7 +2465,6 @@ bool wxDC::DoBlit(
         vBmpHdr.cBitCount = 24;
 
 #if wxUSE_DC_CACHEING
         vBmpHdr.cBitCount = 24;
 
 #if wxUSE_DC_CACHEING

-        if (TRUE)

         {
             //
             // create a temp buffer bitmap and DCs to access it and the mask
         {
             //
             // create a temp buffer bitmap and DCs to access it and the mask


@@ -2623,9 +2483,9 @@ bool wxDC::DoBlit(
             hPSMask = pDCCacheEntry1->m_hPS;
             hDCBuffer = (HDC)pDCCacheEntry2->m_hPS;
             hBufBitmap = (HBITMAP)pBitmapCacheEntry->m_hBitmap;
             hPSMask = pDCCacheEntry1->m_hPS;
             hDCBuffer = (HDC)pDCCacheEntry2->m_hPS;
             hBufBitmap = (HBITMAP)pBitmapCacheEntry->m_hBitmap;

+            wxUnusedVar(hDCMask);

         }
         }

-        else
-#endif
+#else

         {
             hDCMask = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);
             hDCBuffer = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);
         {
             hDCMask = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);
             hDCBuffer = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);


@@ -2633,26 +2493,27 @@ bool wxDC::DoBlit(
             hPSBuffer = ::GpiCreatePS(vHabmain, hDCBuffer, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
             hBufBitmap = ::GpiCreateBitmap(GetHPS(), &vBmpHdr, 0L, NULL, NULL);
         }
             hPSBuffer = ::GpiCreatePS(vHabmain, hDCBuffer, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
             hBufBitmap = ::GpiCreateBitmap(GetHPS(), &vBmpHdr, 0L, NULL, NULL);
         }

+#endif

 
 

-        POINTL                          aPoint1[4] = { 0, 0
-                                                      ,vWidth, vHeight
-                                                      ,vXdest, vYdest
-                                                      ,vXdest + vWidth, vYdest + vHeight
+        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                          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                          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
+        POINTL                          aPoint4[4] = { {vXdest, vYdest}
+                              ,{vXdest + vWidth, vYdest + vHeight}
+                              ,{0, 0}
+                              ,{vWidth, vHeight}

                                                      };
         ::GpiSetBitmap(hPSMask, (HBITMAP) pMask->GetMaskBitmap());
         ::GpiSetBitmap(hPSBuffer, (HBITMAP) hBufBitmap);
                                                      };
         ::GpiSetBitmap(hPSMask, (HBITMAP) pMask->GetMaskBitmap());
         ::GpiSetBitmap(hPSBuffer, (HBITMAP) hBufBitmap);


@@ -2743,7 +2604,7 @@ bool wxDC::DoBlit(
                         );
         if (rc == GPI_ERROR)
         {
                         );
         if (rc == GPI_ERROR)
         {

-            bSuccess = FALSE;
+            bSuccess = false;

             wxLogLastError(wxT("BitBlt"));
         }
 
             wxLogLastError(wxT("BitBlt"));
         }
 


@@ -2759,14 +2620,14 @@ bool wxDC::DoBlit(
         ::DevCloseDC(hDCBuffer);
         ::GpiDeleteBitmap(hBufBitmap);
 #endif
         ::DevCloseDC(hDCBuffer);
         ::GpiDeleteBitmap(hBufBitmap);
 #endif

-        bSuccess = TRUE;
+        bSuccess = true;

     }
     else // no mask, just BitBlt() it
     {
     }
     else // no mask, just BitBlt() it
     {

-        POINTL                          aPoint[4] = { vXdest, vYdest
-                                                     ,vXdest + vWidth, vYdest + vHeight
-                                                     ,vXsrc, vYsrc
-                                                     ,vXsrc + vWidth, vYsrc + vHeight
+      POINTL                          aPoint[4] = { {vXdest, vYdest}
+                           ,{vXdest + vWidth, vYdest + vHeight}
+                           ,{vXsrc, vYsrc}
+                           ,{vXsrc + vWidth, vYsrc + vHeight}

                                                     };
 
         bSuccess = (::GpiBitBlt( m_hPS
                                                     };
 
         bSuccess = (::GpiBitBlt( m_hPS


@@ -2792,12 +2653,10 @@ bool wxDC::DoBlit(
     return bSuccess;
 }
 
     return bSuccess;
 }
 

-void wxDC::DoGetSize(
-  int*                              pnWidth
-, int*                              pnHeight
-) const
+void wxDC::DoGetSize( int* pnWidth,
+                      int* pnHeight ) const

 {
 {

-    LONG                            lArray[CAPS_HEIGHT];
+    LONG lArray[CAPS_HEIGHT];

 
     if(::DevQueryCaps( m_hDC
                       ,CAPS_FAMILY
 
     if(::DevQueryCaps( m_hDC
                       ,CAPS_FAMILY


@@ -2810,10 +2669,8 @@ void wxDC::DoGetSize(
     }
 }; // end of wxDC::DoGetSize(
 
     }
 }; // end of wxDC::DoGetSize(
 

-void wxDC::DoGetSizeMM(
-  int*                              pnWidth
-, int*                              pnHeight
-) const
+void wxDC::DoGetSizeMM( int* pnWidth,
+                        int* pnHeight ) const

 {
     LONG                            lArray[CAPS_VERTICAL_RESOLUTION];
 
 {
     LONG                            lArray[CAPS_VERTICAL_RESOLUTION];
 


@@ -2823,25 +2680,27 @@ void wxDC::DoGetSizeMM(
                       ,lArray
                      ))
     {
                       ,lArray
                      ))
     {

-        int                         nWidth;
-        int                         nHeight;
-        int                         nHorzRes;
-        int                         nVertRes;
+        if(pnWidth)
+        {
+            int nWidth = lArray[CAPS_WIDTH];
+            int nHorzRes  = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
+            *pnWidth  = (nHorzRes/1000) * nWidth;
+        }

 
 

-        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;
+        if(pnHeight)
+        {
+            int nHeight   = lArray[CAPS_HEIGHT];
+            int nVertRes = lArray[CAPS_VERTICAL_RESOLUTION];   // returns pel/meter
+            *pnHeight = (nVertRes/1000) * nHeight;
+        }

     }
 }; // end of wxDC::DoGetSizeMM
 
 wxSize wxDC::GetPPI() const
 {
     LONG                            lArray[CAPS_VERTICAL_RESOLUTION];
     }
 }; // end of wxDC::DoGetSizeMM
 
 wxSize wxDC::GetPPI() const
 {
     LONG                            lArray[CAPS_VERTICAL_RESOLUTION];

-    int                             nWidth;
-    int                             nHeight;
+    int                             nWidth = 0;
+    int                             nHeight = 0;

 
     if(::DevQueryCaps( m_hDC
                       ,CAPS_FAMILY
 
     if(::DevQueryCaps( m_hDC
                       ,CAPS_FAMILY


@@ -2858,33 +2717,15 @@ wxSize wxDC::GetPPI() const
         nPelHeight = lArray[CAPS_HEIGHT];
         nHorzRes   = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
         nVertRes   = lArray[CAPS_VERTICAL_RESOLUTION];   // returns pel/meter
         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;
+        nWidth   = (int)((nHorzRes/39.3) * nPelWidth);
+        nHeight  = (int)((nVertRes/39.3) * nPelHeight);

     }
     }

-    return (wxSize(nWidth,nHeight));
+    wxSize ppisize(nWidth, nHeight);
+    return ppisize;

 } // end of wxDC::GetPPI
 
 } // end of wxDC::GetPPI
 

-void wxDC::SetLogicalScale(
-  double                            dX
-, double                            dY
-)
+void wxDC::SetLogicalScale( double dX, double dY )

 {
     m_logicalScaleX = dX;
     m_logicalScaleY = dY;
 }; // end of wxDC::SetLogicalScale
 {
     m_logicalScaleX = dX;
     m_logicalScaleY = dY;
 }; // end of wxDC::SetLogicalScale

-
-#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
-