From e5a898b54d83c43b6b866fa618a393f284abec95 Mon Sep 17 00:00:00 2001
From: Stefan Neis <Stefan.Neis@t-online.de>
Date: Fri, 18 Jan 2008 21:38:26 +0000
Subject: [PATCH] Fixed errors in OS/2's wxDC::SetMapMode (patch #1871556,
 needed for Filezilla).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@51280 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/os2/dc.cpp | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/src/os2/dc.cpp b/src/os2/dc.cpp
index efce57c91e..a9715ad10a 100644
--- a/src/os2/dc.cpp
+++ b/src/os2/dc.cpp
@@ -2228,13 +2228,13 @@ void wxDC::SetMapMode(
     int                             nPixelHeight = 0;
     int                             nMmWidth = 1;
     int                             nMmHeight = 1;
-    LONG                            lArray[CAPS_VERTICAL_RESOLUTION];
+    LONG                            lArray[CAPS_VERTICAL_RESOLUTION+1];
 
     m_mappingMode = nMode;
 
     if(::DevQueryCaps( m_hDC
-                      ,CAPS_FAMILY
-                      ,CAPS_VERTICAL_RESOLUTION
+                      ,CAPS_FAMILY                  // id of first item
+                      ,CAPS_VERTICAL_RESOLUTION+1   // number of items wanted
                       ,lArray
                      ))
     {
@@ -2246,15 +2246,15 @@ void wxDC::SetMapMode(
         lHorzRes  = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
         lVertRes  = lArray[CAPS_VERTICAL_RESOLUTION];   // returns pel/meter
         nMmWidth  = (lHorzRes/1000) * nPixelWidth;
-        nMmWidth = (lVertRes/1000) * nPixelHeight;
+        nMmHeight = (lVertRes/1000) * nPixelHeight;
     }
     if ((nPixelWidth == 0) || (nPixelHeight == 0) || (nMmWidth == 0) || (nMmHeight == 0))
     {
         return;
     }
 
-    double                          dMm2pixelsX = nPixelWidth/nMmWidth;
-    double                          dMm2pixelsY = nPixelHeight/nMmHeight;
+    double dMm2pixelsX = nPixelWidth/(double)nMmWidth;
+    double dMm2pixelsY = nPixelHeight/(double)nMmHeight;
 
     switch (nMode)
     {
@@ -2284,6 +2284,7 @@ void wxDC::SetMapMode(
             m_logicalScaleY = 1.0;
             break;
     }
+
     SIZEL                           vSize;
     ULONG                           ulOptions;
 
@@ -2293,9 +2294,6 @@ void wxDC::SetMapMode(
         ulOptions = PU_ARBITRARY | GPIF_DEFAULT;
         ::GpiSetPS(m_hPS, &vSize, ulOptions);
     }
-    m_nWindowExtX = (int)MS_XDEV2LOG(VIEWPORT_EXTENT);
-    m_nWindowExtY = (int)MS_YDEV2LOG(VIEWPORT_EXTENT);
-    // ????
 }; // end of wxDC::SetMapMode
 
 void wxDC::SetUserScale( double dX,