X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/893758d507abf66a429666b9f0b2c1baa195b398..5268c5a32bbe68b834abeaa89c8cfb2099d50d2e:/src/os2/dc.cpp

diff --git a/src/os2/dc.cpp b/src/os2/dc.cpp
index c0f1fefcd4..8c8d8a66a4 100644
--- a/src/os2/dc.cpp
+++ b/src/os2/dc.cpp
@@ -23,6 +23,7 @@
     #include "wx/log.h"
     #include "wx/icon.h"
     #include "wx/msgdlg.h"
+    #include "wx/module.h"
 #endif
 
 #include "wx/dcprint.h"
@@ -204,7 +205,7 @@ wxDCCacheEntry* wxDC::FindBitmapInCache(
 , int                               nHeight
 )
 {
-    int                             nDepth = 24 // we'll fix this later ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
+    int                             nDepth = 24; // we'll fix this later ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
     wxNode*                         pNode = m_svBitmapCache.First();
     BITMAPINFOHEADER2               vBmpHdr;
 
@@ -541,6 +542,18 @@ 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
 
@@ -1795,8 +1808,8 @@ 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
 
@@ -1884,7 +1897,8 @@ 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
@@ -1894,7 +1908,8 @@ 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
@@ -1904,7 +1919,8 @@ 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
@@ -1914,7 +1930,8 @@ 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);
 }
 
 // ---------------------------------------------------------------------------