]> git.saurik.com Git - wxWidgets.git/blobdiff - src/os2/dc.cpp
[ 1216436 ] cleanup 'shadow variable' warnings from gcc in headers.
[wxWidgets.git] / src / os2 / dc.cpp
index 883aa74a06c3e235b654f25fccc660e2f04f49ad..55670b238d0d7c52f0857ffdd7bf9587235f9aa1 100644 (file)
     #include "wx/log.h"
     #include "wx/icon.h"
     #include "wx/msgdlg.h"
+#if wxUSE_STATUSBAR
+    #include "wx/statusbr.h"
+#endif
 #endif
 
+#include "wx/module.h"
 #include "wx/dcprint.h"
 
 #include <string.h>
-#include <math.h>
 
 #include "wx/os2/private.h"
 
     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.
-// 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
 //
-// 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
-// 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))
@@ -64,11 +67,6 @@ static const int VIEWPORT_EXTENT = 1000;
 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
 // ---------------------------------------------------------------------------
@@ -149,6 +147,192 @@ int SetBkMode(
 // implementation
 // ===========================================================================
 
+#if wxUSE_DC_CACHEING
+
+/*
+ * This implementation is a bit ugly and uses the old-fashioned wxList class, so I will
+ * improve it in due course, either using arrays, or simply storing pointers to one
+ * entry for the bitmap, and two for the DCs. -- JACS
+ */
+
+// ---------------------------------------------------------------------------
+// wxDCCacheEntry
+// ---------------------------------------------------------------------------
+
+wxList wxDC::m_svBitmapCache;
+wxList wxDC::m_svDCCache;
+
+wxDCCacheEntry::wxDCCacheEntry(
+  WXHBITMAP                         hBitmap
+, int                               nWidth
+, int                               nHeight
+, int                               nDepth
+)
+{
+    m_hBitmap = hBitmap;
+    m_hPS     = NULLHANDLE;
+    m_nWidth  = nWidth;
+    m_nHeight = nHeight;
+    m_nDepth  = nDepth;
+} // end of wxDCCacheEntry::wxDCCacheEntry
+
+wxDCCacheEntry::wxDCCacheEntry(
+  HPS                               hPS
+, int                               nDepth
+)
+{
+    m_hBitmap = NULLHANDLE;
+    m_hPS     = hPS;
+    m_nWidth  = 0;
+    m_nHeight = 0;
+    m_nDepth  = nDepth;
+} // end of wxDCCacheEntry::wxDCCacheEntry
+
+wxDCCacheEntry::~wxDCCacheEntry()
+{
+    if (m_hBitmap)
+        ::GpiDeleteBitmap(m_hBitmap);
+    if (m_hPS)
+        ::GpiDestroyPS(m_hPS);
+} // end of wxDCCacheEntry::~wxDCCacheEntry
+
+wxDCCacheEntry* wxDC::FindBitmapInCache(
+  HPS                               hPS
+, int                               nWidth
+, int                               nHeight
+)
+{
+    int                             nDepth = 24; // we'll fix this later ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
+    wxNode*                         pNode = m_svBitmapCache.First();
+    BITMAPINFOHEADER2               vBmpHdr;
+
+    while(pNode)
+    {
+        wxDCCacheEntry*             pEntry = (wxDCCacheEntry*)pNode->Data();
+
+        if (pEntry->m_nDepth == nDepth)
+        {
+            memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2));
+
+            if (pEntry->m_nWidth < nWidth || pEntry->m_nHeight < nHeight)
+            {
+                ::GpiDeleteBitmap((HBITMAP)pEntry->m_hBitmap);
+                vBmpHdr.cbFix     = sizeof(BITMAPINFOHEADER2);
+                vBmpHdr.cx        = nWidth;
+                vBmpHdr.cy        = nHeight;
+                vBmpHdr.cPlanes   = 1;
+                vBmpHdr.cBitCount = nDepth;
+
+                pEntry->m_hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS
+                                                                  ,&vBmpHdr
+                                                                  ,0L, NULL, NULL
+                                                                 );
+                if (!pEntry->m_hBitmap)
+                {
+                    wxLogLastError(wxT("CreateCompatibleBitmap"));
+                }
+                pEntry->m_nWidth  = nWidth;
+                pEntry->m_nHeight = nHeight;
+                return pEntry;
+            }
+            return pEntry;
+        }
+        pNode = pNode->Next();
+    }
+    memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2));
+    vBmpHdr.cbFix     = sizeof(BITMAPINFOHEADER2);
+    vBmpHdr.cx        = nWidth;
+    vBmpHdr.cy        = nHeight;
+    vBmpHdr.cPlanes   = 1;
+    vBmpHdr.cBitCount = nDepth;
+
+    WXHBITMAP                       hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS
+                                                                            ,&vBmpHdr
+                                                                            ,0L, NULL, NULL
+                                                                           );
+    if (!hBitmap)
+    {
+        wxLogLastError(wxT("CreateCompatibleBitmap"));
+    }
+    wxDCCacheEntry*                 pEntry = new wxDCCacheEntry( hBitmap
+                                                                ,nWidth
+                                                                ,nHeight
+                                                                ,nDepth
+                                                               );
+    AddToBitmapCache(pEntry);
+    return pEntry;
+} // end of FindBitmapInCache
+
+wxDCCacheEntry* wxDC::FindDCInCache(
+  wxDCCacheEntry*                   pNotThis
+, HPS                               hPS
+)
+{
+    int                             nDepth = 24; // we'll fix this up later ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
+    wxNode*                         pNode = m_svDCCache.First();
+
+    while(pNode)
+    {
+        wxDCCacheEntry*             pEntry = (wxDCCacheEntry*)pNode->Data();
+
+        //
+        // Don't return the same one as we already have
+        //
+        if (!pNotThis || (pNotThis != pEntry))
+        {
+            if (pEntry->m_nDepth == nDepth)
+            {
+                return pEntry;
+            }
+        }
+        pNode = pNode->Next();
+    }
+    wxDCCacheEntry*                 pEntry = new wxDCCacheEntry( hPS
+                                                                ,nDepth
+                                                               );
+    AddToDCCache(pEntry);
+    return pEntry;
+} // end of wxDC::FindDCInCache
+
+void wxDC::AddToBitmapCache(
+  wxDCCacheEntry*                   pEntry
+)
+{
+    m_svBitmapCache.Append(pEntry);
+} // end of wxDC::AddToBitmapCache
+
+void wxDC::AddToDCCache(
+  wxDCCacheEntry*                   pEntry
+)
+{
+    m_svDCCache.Append(pEntry);
+} // end of wxDC::AddToDCCache
+
+void wxDC::ClearCache()
+{
+    m_svBitmapCache.DeleteContents(true);
+    m_svBitmapCache.Clear();
+    m_svBitmapCache.DeleteContents(false);
+    m_svDCCache.DeleteContents(true);
+    m_svDCCache.Clear();
+    m_svDCCache.DeleteContents(false);
+} // end of wxDC::ClearCache
+
+// Clean up cache at app exit
+class wxDCModule : public wxModule
+{
+public:
+    virtual bool OnInit() { return true; }
+    virtual void OnExit() { wxDC::ClearCache(); }
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxDCModule)
+}; // end of CLASS wxDCModule
+
+IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule)
+
+#endif // ndef for wxUSE_DC_CACHEING
+
 // ---------------------------------------------------------------------------
 // wxDC
 // ---------------------------------------------------------------------------
@@ -163,12 +347,18 @@ wxDC::wxDC(void)
     m_hOldFont     = 0;
     m_hOldPalette  = 0;
 
-    m_bOwnsDC      = FALSE;
+    m_bOwnsDC      = false;
     m_hDC          = 0;
     m_hOldPS       = NULL;
     m_hPS          = NULL;
-    m_bIsPaintTime = FALSE; // True at Paint Time
-    m_brush.GetColour().Set("WHITE");
+    m_bIsPaintTime = false; // True at Paint Time
+
+    wxColour vColor( wxT("BLACK") );
+    m_pen.SetColour(vColor);
+
+    vColor.Set( wxT("WHITE") );
+    m_brush.SetColour(vColor);
+
 } // end of wxDC::wxDC
 
 wxDC::~wxDC(void)
@@ -263,7 +453,7 @@ void wxDC::DoSetClippingRegion(
     RECTL                           vRect;
 
     vY = OS2Y(vY,vHeight);
-    m_clipping    = TRUE;
+    m_clipping    = true;
     vRect.xLeft   = vX;
     vRect.yTop    = vY + vHeight;
     vRect.xRight  = vX + vWidth;
@@ -279,7 +469,7 @@ void wxDC::DoSetClippingRegionAsRegion(
      wxCHECK_RET(rRegion.GetHRGN(), wxT("invalid clipping region"));
      HRGN                           hRgnOld;
 
-     m_clipping = TRUE;
+     m_clipping = true;
      ::GpiSetClipRegion( m_hPS
                         ,(HRGN)rRegion.GetHRGN()
                         ,&hRgnOld
@@ -307,7 +497,7 @@ void wxDC::DestroyClippingRegion(void)
 
          ::GpiSetClipRegion(m_hPS, hRgn, &hRgnOld);
      }
-      m_clipping = FALSE;
+    ResetClipping();
 } // end of wxDC::DestroyClippingRegion
 
 // ---------------------------------------------------------------------------
@@ -316,7 +506,7 @@ void wxDC::DestroyClippingRegion(void)
 
 bool wxDC::CanDrawBitmap() const
 {
-    return TRUE;
+    return true;
 }
 
 bool wxDC::CanGetTextExtent() const
@@ -330,7 +520,7 @@ bool wxDC::CanGetTextExtent() const
 int wxDC::GetDepth() const
 {
     LONG                            lArray[CAPS_COLOR_BITCOUNT];
-    int                             nBitsPerPixel;
+    int                             nBitsPerPixel = 0;
 
     if(::DevQueryCaps( GetHDC()
                       ,CAPS_FAMILY
@@ -349,10 +539,22 @@ int wxDC::GetDepth() const
 
 void wxDC::Clear()
 {
+    //
+    // If this is a canvas DC then just fill with the background color
+    // Otherwise purge the whole thing
+    //
+    if (m_pCanvas)
+    {
+        RECTL                       vRect;
+
+        ::GpiQueryClipBox(m_hPS, &vRect);
+        ::WinFillRect(m_hPS, &vRect, ::GpiQueryBackColor(m_hPS));
+    }
+    else
     ::GpiErase(m_hPS);
 } // end of wxDC::Clear
 
-void wxDC::DoFloodFill(
+bool wxDC::DoFloodFill(
   wxCoord                           vX
 , wxCoord                           vY
 , const wxColour&                   rCol
@@ -362,6 +564,8 @@ void wxDC::DoFloodFill(
     POINTL                          vPtlPos;
     LONG                            lColor;
     LONG                            lOptions;
+    LONG                            lHits;
+    bool                            bSuccess = false;
 
     vPtlPos.x = vX;             // Loads x-coordinate
     vPtlPos.y = OS2Y(vY,0);     // Loads y-coordinate
@@ -371,7 +575,10 @@ void wxDC::DoFloodFill(
     if(wxFLOOD_SURFACE == nStyle)
         lOptions = FF_SURFACE;
 
-    ::GpiFloodFill(m_hPS, lOptions, lColor);
+    if ((lHits = ::GpiFloodFill(m_hPS, lOptions, lColor)) != GPI_ERROR)
+        bSuccess = true;
+
+    return bSuccess;
 } // end of wxDC::DoFloodFill
 
 bool wxDC::DoGetPixel(
@@ -385,17 +592,7 @@ bool wxDC::DoGetPixel(
 
     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
@@ -405,7 +602,7 @@ bool wxDC::DoGetPixel(
                   ,GetGValue(lColor)
                   ,GetBValue(lColor)
                  );
-    return(lColor == lPencolor);
+    return true;
 } // end of wxDC::DoGetPixel
 
 void wxDC::DoCrossHair(
@@ -450,14 +647,38 @@ void wxDC::DoDrawLine(
 )
 {
     POINTL                          vPoint[2];
+    COLORREF                        vColor = 0x00ffffff;
 
-    vY1 = OS2Y(vY1,0);
-    vY2 = OS2Y(vY2,0);
-
+    //
+    // Might be a memory DC with no Paint rect.
+    //
+    if (!(m_vRclPaint.yTop == 0 &&
+          m_vRclPaint.yBottom == 0 &&
+          m_vRclPaint.xRight == 0 &&
+          m_vRclPaint.xLeft == 0))
+    {
+        vY1 = OS2Y(vY1,0);
+        vY2 = OS2Y(vY2,0);
+    }
+    else
+    {
+        if (m_vSelectedBitmap != wxNullBitmap)
+        {
+            m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
+            m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
+            vY1 = OS2Y(vY1,0);
+            vY2 = OS2Y(vY2,0);
+        }
+    }
     vPoint[0].x = vX1;
     vPoint[0].y = vY1;
     vPoint[1].x = vX2;
     vPoint[1].y = vY2;
+    if (m_pen.Ok())
+    {
+        vColor = m_pen.GetColour().GetPixel();
+    }
+    ::GpiSetColor(m_hPS, vColor);
     ::GpiMove(m_hPS, &vPoint[0]);
     ::GpiLine(m_hPS, &vPoint[1]);
     CalcBoundingBox(vX1, vY1);
@@ -481,8 +702,6 @@ void wxDC::DoDrawArc(
 {
      POINTL                         vPtlPos;
      POINTL                         vPtlArc[2]; // Structure for current position
-     int                            nDx;
-     int                            nDy;
      double                         dRadius;
      double                         dAngl1;
      double                         dAngl2;
@@ -519,8 +738,8 @@ void wxDC::DoDrawArc(
         // 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
@@ -536,8 +755,8 @@ void wxDC::DoDrawArc(
     // 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) */
@@ -556,11 +775,11 @@ void wxDC::DoDrawArc(
     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
 
@@ -737,8 +956,8 @@ void wxDC::DoDrawLines(
     {
         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);
@@ -769,15 +988,31 @@ void wxDC::DoDrawRectangle(
     LONG                            lBorderColor;
     int                             nIsTRANSPARENT = 0;
 
-    vY = OS2Y(vY,vHeight);
+    //
+    // Might be a memory DC with no Paint rect.
+    //
+    if (!(m_vRclPaint.yTop == 0 &&
+          m_vRclPaint.yBottom == 0 &&
+          m_vRclPaint.xRight == 0 &&
+          m_vRclPaint.xLeft == 0))
+        vY = OS2Y(vY,vHeight);
+    else
+    {
+        if (m_vSelectedBitmap != wxNullBitmap)
+        {
+            m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
+            m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
+            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[1].y = vY + vHeight;
+    vPoint[1].x = vX + vWidth - 1;
+    vPoint[1].y = vY + vHeight - 1;
     ::GpiMove(m_hPS, &vPoint[0]);
     lColor       = m_brush.GetColour().GetPixel();
     lBorderColor = m_pen.GetColour().GetPixel();
@@ -789,7 +1024,7 @@ void wxDC::DoDrawRectangle(
         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
@@ -816,7 +1051,7 @@ void wxDC::DoDrawRectangle(
         vPoint[0].x = vX + 1;
         vPoint[0].y = vY + 1;
         vPoint[1].x = vX + vWidth - 2;
-        vPoint[1].y = vY + vHeight + 2;
+        vPoint[1].y = vY + vHeight - 2;
         ::GpiMove(m_hPS, &vPoint[0]);
         ::GpiBox( m_hPS
                  ,lControl
@@ -839,27 +1074,85 @@ void wxDC::DoDrawRoundedRectangle(
 {
     POINTL                          vPoint[2];
     LONG                            lControl;
+    LONG                            lColor;
+    LONG                            lBorderColor;
+    int                             nIsTRANSPARENT = 0;
 
-    vY = OS2Y(vY,vHeight);
+    //
+    // Might be a memory DC with no Paint rect.
+    //
+    if (!(m_vRclPaint.yTop == 0 &&
+          m_vRclPaint.yBottom == 0 &&
+          m_vRclPaint.xRight == 0 &&
+          m_vRclPaint.xLeft == 0))
+        vY = OS2Y(vY,vHeight);
+    else
+    {
+        if (m_vSelectedBitmap != wxNullBitmap)
+        {
+            m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
+            m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
+            vY = OS2Y(vY,vHeight);
+        }
+    }
 
     wxCoord                         vX2 = (vX + vWidth);
     wxCoord                         vY2 = (vY + vHeight);
 
     vPoint[0].x = vX;
-    vPoint[0].y = YLOG2DEV(vY) - vHeight;
-    vPoint[1].x = vX + vWidth;
-    vPoint[1].y = vY;
+    vPoint[0].y = vY;
+    vPoint[1].x = vX + vWidth - 1;
+    vPoint[1].y = vY + vHeight - 1;
     ::GpiMove(m_hPS, &vPoint[0]);
 
+    lColor       = m_brush.GetColour().GetPixel();
+    lBorderColor = m_pen.GetColour().GetPixel();
     lControl = DRO_OUTLINEFILL; //DRO_FILL;
     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
+                 ,(LONG)dRadius // horizontal corner radius
+                 ,(LONG)dRadius // vertical corner radius
+                );
+    }
+    else
+    {
         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
-            );
+        ::GpiSetColor( m_hPS
+                      ,lBorderColor
+                     );
+        ::GpiBox( m_hPS
+                 ,lControl
+                 ,&vPoint[1]
+                 ,(LONG)dRadius
+                 ,(LONG)dRadius
+                );
+        lControl = DRO_FILL;
+        ::GpiSetColor( m_hPS
+                      ,lColor
+                     );
+        vPoint[0].x = vX + 1;
+        vPoint[0].y = vY + 1;
+        vPoint[1].x = vX + vWidth - 2;
+        vPoint[1].y = vY + vHeight - 2;
+        ::GpiMove(m_hPS, &vPoint[0]);
+        ::GpiBox( m_hPS
+                 ,lControl
+                 ,&vPoint[1]
+                 ,(LONG)dRadius
+                 ,(LONG)dRadius
+                );
+    }
+
     CalcBoundingBox(vX, vY);
     CalcBoundingBox(vX2, vY2);
 } // end of wxDC::DoDrawRoundedRectangle
@@ -923,7 +1216,6 @@ void wxDC::DoDrawEllipticArc(
     FIXED                           vFSweepa; // Start angle, sweep angle
     double                          dIntPart;
     double                          dFractPart;
-    double                          dRadius;
 
     vY = OS2Y(vY,vHeight);
 
@@ -940,8 +1232,8 @@ void wxDC::DoDrawEllipticArc(
     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
 
     //
@@ -973,15 +1265,21 @@ void wxDC::DoDrawIcon(
 , wxCoord                           vY
 )
 {
-    vY = OS2Y(vY,rIcon.GetHeight());
-    wxCHECK_RET( rIcon.Ok(), wxT("invalid icon in DrawIcon") );
+    //
+    // 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
+    //
+    if (rIcon.IsXpm())
+    {
+        DoDrawBitmap(rIcon.GetXpmSrc(), vX, vY, true);
+    }
+    else
+    {
+        wxBitmap                        vBitmap(rIcon);
 
-    ::WinDrawPointer( GetHPS()
-                     ,vX
-                     ,vY
-                     ,(HPOINTER)GetHiconOf(rIcon)
-                     ,DP_NORMAL
-                    );
+        DoDrawBitmap(vBitmap, vX, vY, false);
+    }
     CalcBoundingBox(vX, vY);
     CalcBoundingBox(vX + rIcon.GetWidth(), vY + rIcon.GetHeight());
 } // end of wxDC::DoDrawIcon
@@ -993,16 +1291,400 @@ void wxDC::DoDrawBitmap(
 , bool                              bUseMask
 )
 {
-    POINTL                          vPoint = {vX, vY};
+    if (!IsKindOf(CLASSINFO(wxPrinterDC)))
+    {
+        HBITMAP                         hBitmap =  (HBITMAP)rBmp.GetHBITMAP();
+        HBITMAP                         hBitmapOld = NULLHANDLE;;
+        POINTL                          vPoint[4];
+
+        vY = OS2Y(vY,rBmp.GetHeight());
+
+        vPoint[0].x = vX;
+        vPoint[0].y = vY + rBmp.GetHeight();
+        vPoint[1].x = vX + rBmp.GetWidth();
+        vPoint[1].y = vY;
+        vPoint[2].x = 0;
+        vPoint[2].y = 0;
+        vPoint[3].x = rBmp.GetWidth();
+        vPoint[3].y = rBmp.GetHeight();
+        if (bUseMask)
+        {
+            wxMask*                     pMask = rBmp.GetMask();
 
-    ::WinDrawBitmap( GetHPS()
-                    ,(HBITMAP)GetHbitmapOf(rBmp)
-                    ,NULL
-                    ,&vPoint
-                    ,0L
-                    ,0L
-                    ,DBM_NORMAL
-                   );
+            if (pMask)
+            {
+                //
+                // Need to imitate ::MaskBlt in windows.
+                // 1) Extract the bits from from the bitmap.
+                // 2) Extract the bits from the mask
+                // 3) Using the mask bits do the following:
+                //   A) If the mask byte is 00 leave the bitmap byte alone
+                //   B) If the mask byte is FF copy the screen color into
+                //      bitmap byte
+                // 4) Create a new bitmap and set its bits to the above result
+                // 5) Blit this to the screen PS
+                //
+                HBITMAP                 hMask = (HBITMAP)pMask->GetMaskBitmap();
+                HBITMAP                 hOldMask   = NULLHANDLE;
+                HBITMAP                 hOldBitmap = NULLHANDLE;
+                HBITMAP                 hNewBitmap = NULLHANDLE;
+                unsigned char*          pucBits;     // buffer that will contain the bitmap data
+                unsigned char*          pucBitsMask; // buffer that will contain the mask data
+                unsigned char*          pucData;     // pointer to use to traverse bitmap data
+                unsigned char*          pucDataMask; // pointer to use to traverse mask data
+                LONG                    lHits;
+                ERRORID                 vError;
+                wxString                sError;
+
+                //
+                // The usual Memory context creation stuff
+                //
+                DEVOPENSTRUC                    vDop  = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
+                SIZEL                           vSize = {0, 0};
+                HDC                             hDC   = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
+                HPS                             hPS   = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
+
+                //
+                // The usual bitmap header stuff
+                //
+                BITMAPINFOHEADER2               vHeader;
+                BITMAPINFO2                     vInfo;
+
+                memset(&vHeader, '\0', 16);
+                vHeader.cbFix           = 16;
+
+                memset(&vInfo, '\0', 16);
+                vInfo.cbFix           = 16;
+                vInfo.cx              = (ULONG)rBmp.GetWidth();
+                vInfo.cy              = (ULONG)rBmp.GetHeight();
+                vInfo.cPlanes         = 1;
+                vInfo.cBitCount       = 24; // Set to desired count going in
+
+                //
+                // Create the buffers for data....all wxBitmaps are 24 bit internally
+                //
+                int                     nBytesPerLine = rBmp.GetWidth() * 3;
+                int                     nSizeDWORD    = sizeof(DWORD);
+                int                     nLineBoundary = nBytesPerLine % nSizeDWORD;
+                int                     nPadding = 0;
+                int                     i;
+                int                     j;
+                LONG                    lScans = 0L;
+                LONG                    lColor = 0L;
+
+                //
+                // Need to get a background color for mask blitting
+                //
+                if (IsKindOf(CLASSINFO(wxWindowDC)))
+                {
+                    wxWindowDC*             pWindowDC = wxDynamicCast(this, wxWindowDC);
+
+                    lColor = pWindowDC->m_pCanvas->GetBackgroundColour().GetPixel();
+                }
+                else if (GetBrush().Ok())
+                    lColor = GetBrush().GetColour().GetPixel();
+                else
+                    lColor = m_textBackgroundColour.GetPixel();
+
+                //
+                // Bitmap must be in a double-word aligned address so we may
+                // have some padding to worry about
+                //
+                if (nLineBoundary > 0)
+                {
+                    nPadding     = nSizeDWORD - nLineBoundary;
+                    nBytesPerLine += nPadding;
+                }
+                pucBits = (unsigned char *)malloc(nBytesPerLine * rBmp.GetHeight());
+                pucBitsMask = (unsigned char *)malloc(nBytesPerLine * rBmp.GetHeight());
+                memset(pucBits, '\0', (nBytesPerLine * rBmp.GetHeight()));
+                memset(pucBitsMask, '\0', (nBytesPerLine * rBmp.GetHeight()));
+
+                //
+                // Extract the bitmap and mask data
+                //
+                if ((hOldBitmap = ::GpiSetBitmap(hPS, hBitmap)) == HBM_ERROR)
+                {
+                    vError = ::WinGetLastError(vHabmain);
+                    sError = wxPMErrorToStr(vError);
+                }
+                ::GpiQueryBitmapInfoHeader(hBitmap, &vHeader);
+                vInfo.cBitCount = 24;
+                if ((lScans = ::GpiQueryBitmapBits( hPS
+                                                   ,0L
+                                                   ,(LONG)rBmp.GetHeight()
+                                                   ,(PBYTE)pucBits
+                                                   ,&vInfo
+                                                  )) == GPI_ALTERROR)
+                {
+                    vError = ::WinGetLastError(vHabmain);
+                    sError = wxPMErrorToStr(vError);
+                }
+                if ((hOldMask = ::GpiSetBitmap(hPS, hMask)) == HBM_ERROR)
+                {
+                    vError = ::WinGetLastError(vHabmain);
+                    sError = wxPMErrorToStr(vError);
+                }
+                ::GpiQueryBitmapInfoHeader(hMask, &vHeader);
+                vInfo.cBitCount = 24;
+                if ((lScans = ::GpiQueryBitmapBits( hPS
+                                                   ,0L
+                                                   ,(LONG)rBmp.GetHeight()
+                                                   ,(PBYTE)pucBitsMask
+                                                   ,&vInfo
+                                                  )) == GPI_ALTERROR)
+                {
+                    vError = ::WinGetLastError(vHabmain);
+                    sError = wxPMErrorToStr(vError);
+                }
+                if (( hMask = ::GpiSetBitmap(hPS, hOldMask)) == HBM_ERROR)
+                {
+                    vError = ::WinGetLastError(vHabmain);
+                    sError = wxPMErrorToStr(vError);
+                }
+
+                //
+                // Now set the bytes(bits) according to the mask values
+                // 3 bytes per pel...must handle one at a time
+                //
+                pucData     = pucBits;
+                pucDataMask = pucBitsMask;
+
+                //
+                // 16 bit kludge really only kinda works.  The mask gets applied
+                // where needed but the original bitmap bits are dorked sometimes
+                //
+                bool                    bpp16 = (wxDisplayDepth() == 16);
+
+                for (i = 0; i < rBmp.GetHeight(); i++)
+                {
+                    for (j = 0; j < rBmp.GetWidth(); j++)
+                    {
+                        // Byte 1
+                        if (bpp16 && *pucDataMask == 0xF8) // 16 bit display gobblygook
+                            pucData++;
+                        else if (*pucDataMask == 0xFF) // leave bitmap byte alone
+                            pucData++;
+                        else
+                        {
+                            *pucData = ((unsigned char)(lColor >> 16));
+                            pucData++;
+                        }
+                        // Byte 2
+                        if (bpp16 && *(pucDataMask + 1) == 0xFC) // 16 bit display gobblygook
+                            pucData++;
+                        else if (*(pucDataMask + 1) == 0xFF) // leave bitmap byte alone
+                            pucData++;
+                        else
+                        {
+                            *pucData = ((unsigned char)(lColor >> 8));
+                            pucData++;
+                        }
+
+                        // Byte 3
+                        if (bpp16 && *(pucDataMask + 2) == 0xF8) // 16 bit display gobblygook
+                            pucData++;
+                        else if (*(pucDataMask + 2) == 0xFF) // leave bitmap byte alone
+                            pucData++;
+                        else
+                        {
+                            *pucData = ((unsigned char)lColor);
+                            pucData++;
+                        }
+                        pucDataMask += 3;
+                    }
+                    for (j = 0; j < nPadding; j++)
+                    {
+                        pucData++;
+                        pucDataMask++;
+                    }
+                }
+                //
+                // Create a new bitmap
+                //
+                vHeader.cx              = (ULONG)rBmp.GetWidth();
+                vHeader.cy              = (ULONG)rBmp.GetHeight();
+                vHeader.cPlanes         = 1L;
+                vHeader.cBitCount       = 24;
+                if ((hNewBitmap = ::GpiCreateBitmap( hPS
+                                                    ,&vHeader
+                                                    ,CBM_INIT
+                                                    ,(PBYTE)pucBits
+                                                    ,&vInfo
+                                                   )) == GPI_ERROR)
+                {
+                    vError = ::WinGetLastError(vHabmain);
+                    sError = wxPMErrorToStr(vError);
+                }
+
+                //
+                // Now blit it to the screen PS
+                //
+                if ((lHits = ::GpiWCBitBlt( (HPS)GetHPS()
+                                           ,hNewBitmap
+                                           ,4
+                                           ,vPoint
+                                           ,ROP_SRCCOPY
+                                           ,BBO_IGNORE
+                                          )) == GPI_ERROR)
+                {
+                    vError = ::WinGetLastError(vHabmain);
+                    sError = wxPMErrorToStr(vError);
+                }
+
+                //
+                // Clean up
+                //
+                free(pucBits);
+                free(pucBitsMask);
+                ::GpiSetBitmap(hPS, NULLHANDLE);
+                ::GpiDeleteBitmap(hNewBitmap);
+                ::GpiDestroyPS(hPS);
+                ::DevCloseDC(hDC);
+            }
+        }
+        else
+        {
+            ULONG                       lOldForeGround = ::GpiQueryColor((HPS)GetHPS());
+            ULONG                       lOldBackGround = ::GpiQueryBackColor((HPS)GetHPS());
+
+            if (m_textForegroundColour.Ok())
+            {
+                ::GpiSetColor( (HPS)GetHPS()
+                               ,m_textForegroundColour.GetPixel()
+                              );
+            }
+            if (m_textBackgroundColour.Ok())
+            {
+                ::GpiSetBackColor( (HPS)GetHPS()
+                                  ,m_textBackgroundColour.GetPixel()
+                                 );
+            }
+            //
+            // Need to alter bits in a mono bitmap to match the new
+            // background-foreground if it is different.
+            //
+            if (rBmp.IsMono() &&
+               ((m_textForegroundColour.GetPixel() != lOldForeGround) ||
+                (m_textBackgroundColour.GetPixel() != lOldBackGround)))
+            {
+                DEVOPENSTRUC        vDop  = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
+                SIZEL               vSize = {0, 0};
+                HDC                 hDC   = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
+                HPS                 hPS   = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
+
+                int                 nBytesPerLine = rBmp.GetWidth() * 3;
+                int                 i, j;
+                LONG                lForeGround = m_textForegroundColour.GetPixel();
+                LONG                lBackGround = m_textBackgroundColour.GetPixel();
+                LONG                lScans;
+                HBITMAP             hOldBitmap = NULLHANDLE;
+                BITMAPINFO2         vInfo;
+                ERRORID             vError;
+                wxString            sError;
+
+
+                memset(&vInfo, '\0', 16);
+                vInfo.cbFix           = 16;
+                vInfo.cx              = (ULONG)rBmp.GetWidth();
+                vInfo.cy              = (ULONG)rBmp.GetHeight();
+                vInfo.cPlanes         = 1;
+                vInfo.cBitCount       = 24;
+
+                unsigned char*          pucBits;     // buffer that will contain the bitmap data
+                unsigned char*          pucData;     // pointer to use to traverse bitmap data
+
+                pucBits = new unsigned char[nBytesPerLine * rBmp.GetHeight()];
+                memset(pucBits, '\0', (nBytesPerLine * rBmp.GetHeight()));
+
+                if ((hOldBitmap = ::GpiSetBitmap(hPS, hBitmap)) == HBM_ERROR)
+                {
+                    vError = ::WinGetLastError(vHabmain);
+                    sError = wxPMErrorToStr(vError);
+                    return;
+                }
+                if ((lScans = ::GpiQueryBitmapBits( hPS
+                                                   ,0L
+                                                   ,(LONG)rBmp.GetHeight()
+                                                   ,(PBYTE)pucBits
+                                                   ,&vInfo
+                                                  )) == GPI_ALTERROR)
+                {
+                    vError = ::WinGetLastError(vHabmain);
+                    sError = wxPMErrorToStr(vError);
+                    return;
+                }
+                unsigned char           cOldRedFore   = (unsigned char)(lOldForeGround >> 16);
+                unsigned char           cOldGreenFore = (unsigned char)(lOldForeGround >> 8);
+                unsigned char           cOldBlueFore  = (unsigned char)lOldForeGround;
+
+                unsigned char           cRedFore   = (unsigned char)(lForeGround >> 16);
+                unsigned char           cGreenFore = (unsigned char)(lForeGround >> 8);
+                unsigned char           cBlueFore  = (unsigned char)lForeGround;
+
+                unsigned char           cRedBack   = (unsigned char)(lBackGround >> 16);
+                unsigned char           cGreenBack = (unsigned char)(lBackGround >> 8);
+                unsigned char           cBlueBack  = (unsigned char)lBackGround;
+
+                pucData = pucBits;
+                for (i = 0; i < rBmp.GetHeight(); i++)
+                {
+                    for (j = 0; j < rBmp.GetWidth(); j++)
+                    {
+                        unsigned char    cBmpRed   = *pucData;
+                        unsigned char    cBmpGreen = *(pucData + 1);
+                        unsigned char    cBmpBlue  = *(pucData + 2);
+
+                        if ((cBmpRed == cOldRedFore) &&
+                            (cBmpGreen == cOldGreenFore) &&
+                            (cBmpBlue == cOldBlueFore))
+                        {
+                            *pucData = cBlueFore;
+                            pucData++;
+                            *pucData = cGreenFore;
+                            pucData++;
+                            *pucData = cRedFore;
+                            pucData++;
+                        }
+                        else
+                        {
+                            *pucData = cBlueBack;
+                            pucData++;
+                            *pucData = cGreenBack;
+                            pucData++;
+                            *pucData = cRedBack;
+                            pucData++;
+                        }
+                    }
+                }
+                if ((lScans = ::GpiSetBitmapBits( hPS
+                                                 ,0L
+                                                 ,(LONG)rBmp.GetHeight()
+                                                 ,(PBYTE)pucBits
+                                                 ,&vInfo
+                                                )) == GPI_ALTERROR)
+                {
+                    vError = ::WinGetLastError(vHabmain);
+                    sError = wxPMErrorToStr(vError);
+                    return;
+                }
+                delete [] pucBits;
+                ::GpiSetBitmap(hPS, NULLHANDLE);
+                ::GpiDestroyPS(hPS);
+                ::DevCloseDC(hDC);
+            }
+            ::GpiWCBitBlt( (HPS)GetHPS()
+                          ,hBitmap
+                          ,4
+                          ,vPoint
+                          ,ROP_SRCCOPY
+                          ,BBO_IGNORE
+                         );
+            ::GpiSetBitmap((HPS)GetHPS(), hBitmapOld);
+            ::GpiSetColor((HPS)GetHPS(), lOldForeGround);
+            ::GpiSetBackColor((HPS)GetHPS(), lOldBackGround);
+        }
+    }
 } // end of wxDC::DoDrawBitmap
 
 void wxDC::DoDrawText(
@@ -1064,13 +1746,41 @@ void wxDC::DrawAnyText(
                   ,&vTextY
                  );
     vPtlStart.x = vX;
-    vPtlStart.y = OS2Y(vY,vTextY);
+    if (!(m_vRclPaint.yTop == 0 &&
+          m_vRclPaint.yBottom == 0 &&
+          m_vRclPaint.xRight == 0 &&
+          m_vRclPaint.xLeft == 0))
+    {
+        //
+        // Position Text a little differently in the Statusbar from other panels
+        //
+        if (m_pCanvas && m_pCanvas->IsKindOf(CLASSINFO(wxStatusBar)))
+            vPtlStart.y = OS2Y(vY,vTextY);
+        else
+            vPtlStart.y = (wxCoord)(OS2Y(vY,vTextY/1.5)); // Full extent is a bit much
+    }
+    else
+    {
+        if (m_vSelectedBitmap != wxNullBitmap)
+        {
+            m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
+            m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
+            if (m_pCanvas && m_pCanvas->IsKindOf(CLASSINFO(wxStatusBar)))
+                vPtlStart.y = OS2Y(vY,vTextY);
+            else
+                vPtlStart.y = (LONG)(OS2Y(vY,vTextY/1.5));
+        }
+        else
+            vPtlStart.y = vY;
+    }
+
+    PCH                             pzStr = (PCH)rsText.c_str();
 
-    lHits = ::GpiCharStringAt( m_hPS
-                              ,&vPtlStart
-                              ,rsText.length()
-                              ,(PCH)rsText.c_str()
-                             );
+    ::GpiMove(m_hPS, &vPtlStart);
+    lHits = ::GpiCharString( m_hPS
+                            ,rsText.length()
+                            ,pzStr
+                           );
     if (lHits != GPI_OK)
     {
         wxLogLastError(wxT("TextOut"));
@@ -1161,6 +1871,52 @@ void wxDC::DoDrawRotatedText(
 // set GDI objects
 // ---------------------------------------------------------------------------
 
+void wxDC::DoSelectPalette(
+  bool                              bRealize
+)
+{
+    //
+    // Set the old object temporarily, in case the assignment deletes an object
+    // that's not yet selected out.
+    //
+    if (m_hOldPalette)
+    {
+        m_hOldPalette = 0;
+    }
+
+    if (m_palette.Ok())
+    {
+        HPALETTE                    hOldPal;
+
+        hOldPal = ::GpiSelectPalette((HDC) m_hPS, (HPALETTE) m_palette.GetHPALETTE());
+        if (!m_hOldPalette)
+            m_hOldPalette = (WXHPALETTE)hOldPal;
+    }
+} // end of wxDC::DoSelectPalette
+
+void wxDC::InitializePalette()
+{
+    if (wxDisplayDepth() <= 8 )
+    {
+        //
+        // Look for any window or parent that has a custom palette. If any has
+        // one then we need to use it in drawing operations
+        //
+        wxWindow*                   pWin = m_pCanvas->GetAncestorWithCustomPalette();
+
+        m_hasCustomPalette = pWin && pWin->HasCustomPalette();
+        if (m_hasCustomPalette)
+        {
+            m_palette = pWin->GetPalette();
+
+            //
+            // turn on PM translation for this palette
+            //
+            DoSelectPalette();
+        }
+    }
+} // end of wxDC::InitializePalette
+
 void wxDC::SetPalette(
   const wxPalette&                  rPalette
 )
@@ -1247,6 +2003,7 @@ void wxDC::SetPen(
             if (!m_hOldPen)
                 m_hOldPen = m_pen.GetPS();
         }
+        ::GpiSetColor(m_hPS, m_pen.GetColour().GetPixel());
     }
 }
 
@@ -1295,7 +2052,7 @@ void wxDC::SetBackground(
         return;
     if (m_pCanvas)
     {
-        bool                        bCustomColours = TRUE;
+        bool                        bCustomColours = true;
 
         //
         // If we haven't specified wxUSER_COLOURS, don't allow the panel/dialog box to
@@ -1303,12 +2060,12 @@ void wxDC::SetBackground(
         //
         if (m_pCanvas->IsKindOf(CLASSINFO(wxWindow)) &&
             ((m_pCanvas->GetWindowStyleFlag() & wxUSER_COLOURS) != wxUSER_COLOURS))
-            bCustomColours = FALSE;
+            bCustomColours = false;
         if (bCustomColours)
         {
             if (m_backgroundBrush.GetStyle()==wxTRANSPARENT)
             {
-                m_pCanvas->SetTransparent(TRUE);
+                m_pCanvas->SetTransparent(true);
             }
             else
             {
@@ -1322,7 +2079,7 @@ void wxDC::SetBackground(
                 // parent?
                 // m_canvas->SetBackgroundColour(m_backgroundBrush.GetColour());
                 //
-                m_pCanvas->SetTransparent(FALSE);
+                m_pCanvas->SetTransparent(false);
             }
         }
     }
@@ -1413,8 +2170,8 @@ 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()
@@ -1471,24 +2228,22 @@ void wxDC::DoGetTextExtent(
     int                             l;
     FONTMETRICS                     vFM; // metrics structure
     BOOL                            bRc;
-    char*                           pStr;
     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();
-    pStr = (PCH) rsString.c_str();
 
     //
     // In world coordinates.
     //
     bRc = ::GpiQueryTextBox( m_hPS
                             ,l
-                            ,pStr
+                            ,(PCH)rsString.c_str()
                             ,TXTBOX_COUNT // return maximum information
                             ,avPoint      // array of coordinates points
                            );
@@ -1497,8 +2252,8 @@ void wxDC::DoGetTextExtent(
        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
                          );
@@ -1603,8 +2358,8 @@ void wxDC::SetMapMode(
         ulOptions = PU_ARBITRARY | GPIF_DEFAULT;
         ::GpiSetPS(m_hPS, &vSize, ulOptions);
     }
-    m_nWindowExtX = (int)MS_XDEV2LOGREL(VIEWPORT_EXTENT);
-    m_nWindowExtY = (int)MS_YDEV2LOGREL(VIEWPORT_EXTENT);
+    m_nWindowExtX = (int)MS_XDEV2LOG(VIEWPORT_EXTENT);
+    m_nWindowExtY = (int)MS_YDEV2LOG(VIEWPORT_EXTENT);
     // ????
 }; // end of wxDC::SetMapMode
 
@@ -1692,7 +2447,8 @@ wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
 
 wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
 {
-    return (wxCoord) ((x)/(m_logicalScaleX*m_userScaleX*m_signX*m_scaleX));
+    // 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
@@ -1702,7 +2458,8 @@ wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
 
 wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
 {
-    return (wxCoord) ((y)/(m_logicalScaleY*m_userScaleY*m_signY*m_scaleY));
+    // 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
@@ -1712,7 +2469,8 @@ wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
 
 wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
 {
-    return (wxCoord) (x*m_logicalScaleX*m_userScaleX*m_signX*m_scaleX);
+    // 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
@@ -1722,7 +2480,8 @@ wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
 
 wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
 {
-    return (wxCoord) (y*m_logicalScaleY*m_userScaleY*m_signY*m_scaleY);
+    // axis orientation is not taken into account for conversion of a distance
+    return (wxCoord) (y*m_logicalScaleY*m_userScaleY*m_scaleY);
 }
 
 // ---------------------------------------------------------------------------
@@ -1739,6 +2498,8 @@ bool wxDC::DoBlit(
 , wxCoord                           vYsrc
 , int                               nRop
 , bool                              bUseMask
+, wxCoord                           vXsrcMask
+, wxCoord                           vYsrcMask
 )
 {
     wxMask*                         pMask = NULL;
@@ -1753,7 +2514,7 @@ bool wxDC::DoBlit(
         pMask = rBmp.GetMask();
         if (!(rBmp.Ok() && pMask && pMask->GetMaskBitmap()))
         {
-            bUseMask = FALSE;
+            bUseMask = false;
         }
     }
 
@@ -1801,7 +2562,7 @@ bool wxDC::DoBlit(
         case wxNOR:          lRop = ROP_NOTSRCCOPY;       break;
         default:
            wxFAIL_MSG( wxT("unsupported logical function") );
-           return FALSE;
+           return false;
     }
 
     bool                            bSuccess;
@@ -1821,14 +2582,10 @@ bool wxDC::DoBlit(
         HPS                             hPSBuffer;
         DEVOPENSTRUC                    vDOP = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
         BITMAPINFOHEADER2               vBmpHdr;
+        HBITMAP                         hBufBitmap;
         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;
@@ -1836,26 +2593,56 @@ bool wxDC::DoBlit(
         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
+#if wxUSE_DC_CACHEING
+        if (true)
+        {
+            //
+            // create a temp buffer bitmap and DCs to access it and the mask
+            //
+            wxDCCacheEntry*         pDCCacheEntry1    = FindDCInCache( NULL
+                                                                      ,pSource->GetHPS()
+                                                                     );
+            wxDCCacheEntry*         pDCCacheEntry2    = FindDCInCache( pDCCacheEntry1
+                                                                      ,GetHPS()
+                                                                     );
+            wxDCCacheEntry*         pBitmapCacheEntry = FindBitmapInCache( GetHPS()
+                                                                          ,vWidth
+                                                                          ,vHeight
+                                                                         );
+
+            hPSMask = pDCCacheEntry1->m_hPS;
+            hDCBuffer = (HDC)pDCCacheEntry2->m_hPS;
+            hBufBitmap = (HBITMAP)pBitmapCacheEntry->m_hBitmap;
+        }
+        else
+#endif
+        {
+            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);
+            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                          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);
@@ -1946,7 +2733,7 @@ bool wxDC::DoBlit(
                         );
         if (rc == GPI_ERROR)
         {
-            bSuccess = FALSE;
+            bSuccess = false;
             wxLogLastError(wxT("BitBlt"));
         }
 
@@ -1955,19 +2742,21 @@ bool wxDC::DoBlit(
         //
         ::GpiSetBitmap(hPSMask, NULLHANDLE);
         ::GpiSetBitmap(hPSBuffer, NULLHANDLE);
+#if !wxUSE_DC_CACHEING
         ::GpiDestroyPS(hPSMask);
         ::GpiDestroyPS(hPSBuffer);
         ::DevCloseDC(hDCMask);
         ::DevCloseDC(hDCBuffer);
         ::GpiDeleteBitmap(hBufBitmap);
-        bSuccess = TRUE;
+#endif
+        bSuccess = true;
     }
     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
@@ -2041,8 +2830,8 @@ void 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
@@ -2059,8 +2848,8 @@ wxSize wxDC::GetPPI() const
         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));
 } // end of wxDC::GetPPI
@@ -2074,18 +2863,5 @@ void wxDC::SetLogicalScale(
     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
+