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 efce57c91e5ff0cad98176f1fa224367cc7c1faf..3e6e349b6a5be78fd749103511c2ca87a40b8c20 100644 (file)
--- a/src/os2/dc.cpp
+++ b/src/os2/dc.cpp
@@ -1753,12 +1753,10 @@ void wxDC::DrawAnyText( const wxString& rsText,
             vPtlStart.y = vY;
     }
 
-    PCH pzStr = (PCH)rsText.c_str();
-
     ::GpiMove(m_hPS, &vPtlStart);
     lHits = ::GpiCharString( m_hPS
                             ,rsText.length()
-                            ,pzStr
+                            ,rsText.char_str()
                            );
     if (lHits != GPI_OK)
     {
@@ -2153,7 +2151,7 @@ void wxDC::DoGetTextExtent(
 , wxCoord*                          pvY
 , wxCoord*                          pvDescent
 , wxCoord*                          pvExternalLeading
-, wxFont*                           pTheFont
+, const wxFont*                     pTheFont
 ) const
 {
     POINTL                          avPoint[TXTBOX_COUNT];
@@ -2178,7 +2176,7 @@ void wxDC::DoGetTextExtent(
     //
     bRc = ::GpiQueryTextBox( m_hPS
                             ,l
-                            ,(PCH)rsString.c_str()
+                            ,rsString.char_str()
                             ,TXTBOX_COUNT // return maximum information
                             ,avPoint      // array of coordinates points
                            );
@@ -2296,6 +2294,9 @@ void wxDC::SetMapMode(
     m_nWindowExtX = (int)MS_XDEV2LOG(VIEWPORT_EXTENT);
     m_nWindowExtY = (int)MS_YDEV2LOG(VIEWPORT_EXTENT);
     // ????
+    
+    ComputeScaleAndOrigin();
+    
 }; // end of wxDC::SetMapMode
 
 void wxDC::SetUserScale( double dX,
@@ -2316,17 +2317,6 @@ void wxDC::SetAxisOrientation( bool bXLeftRight,
     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
@@ -2367,54 +2357,6 @@ void 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
 // ---------------------------------------------------------------------------