vcl: SalGraphics::mirror() - always use GetGraphicsWidth()

There's never a case where we need to get the width from VirtualDevice,
we really should only get it from the SalGraphics instance. This vastly
simplifies matters.

Change-Id: I8bae9c163fcb0ce5d064d802c2783437124ebcb2
Reviewed-on: https://gerrit.libreoffice.org/12473Reviewed-by: Chris Sherlock <chris.sherlock79@gmail.com>
Tested-by: Chris Sherlock <chris.sherlock79@gmail.com>

vcl/source/gdi/salgdilayout.cxx

@@ -88,11 +88,7 @@ bool SalGraphics::drawTransformedBitmap(
 
 void SalGraphics::mirror( long& x, const OutputDevice *pOutDev, bool bBack ) const
 {
-    long w;
-    if( pOutDev && pOutDev->GetOutDevType() == OUTDEV_VIRDEV )
-        w = pOutDev->GetOutputWidthPixel();
-    else
-        w = GetGraphicsWidth();
+    long w = GetGraphicsWidth();
 
     if( w )
     {
@@ -124,11 +120,7 @@ void SalGraphics::mirror( long& x, const OutputDevice *pOutDev, bool bBack ) con
 
 void SalGraphics::mirror( long& x, long& nWidth, const OutputDevice *pOutDev, bool bBack ) const
 {
-    long w;
-    if( pOutDev && pOutDev->GetOutDevType() == OUTDEV_VIRDEV )
-        w = pOutDev->GetOutputWidthPixel();
-    else
-        w = GetGraphicsWidth();
+    long w = GetGraphicsWidth();
 
     if( w )
     {
@@ -161,11 +153,7 @@ void SalGraphics::mirror( long& x, long& nWidth, const OutputDevice *pOutDev, bo
 
 bool SalGraphics::mirror( sal_uInt32 nPoints, const SalPoint *pPtAry, SalPoint *pPtAry2, const OutputDevice *pOutDev, bool bBack ) const
 {
-    long w;
-    if( pOutDev && pOutDev->GetOutDevType() == OUTDEV_VIRDEV )
-        w = pOutDev->GetOutputWidthPixel();
-    else
-        w = GetGraphicsWidth();
+    long w = GetGraphicsWidth();
 
     if( w )
     {
@@ -287,11 +275,7 @@ void SalGraphics::mirror( Rectangle& rRect, const OutputDevice *pOutDev, bool bB
 
 basegfx::B2DPoint SalGraphics::mirror( const basegfx::B2DPoint& i_rPoint, const OutputDevice *i_pOutDev, bool i_bBack ) const
 {
-    long w;
-    if( i_pOutDev && i_pOutDev->GetOutDevType() == OUTDEV_VIRDEV )
-        w = i_pOutDev->GetOutputWidthPixel();
-    else
-        w = GetGraphicsWidth();
+    long w = GetGraphicsWidth();
 
     DBG_ASSERT( w, "missing graphics width" );
 
@@ -316,11 +300,7 @@ basegfx::B2DPoint SalGraphics::mirror( const basegfx::B2DPoint& i_rPoint, const
 
 basegfx::B2DPolygon SalGraphics::mirror( const basegfx::B2DPolygon& i_rPoly, const OutputDevice *i_pOutDev, bool i_bBack ) const
 {
-    long w;
-    if( i_pOutDev && i_pOutDev->GetOutDevType() == OUTDEV_VIRDEV )
-        w = i_pOutDev->GetOutputWidthPixel();
-    else
-        w = GetGraphicsWidth();
+    long w = GetGraphicsWidth();
 
     DBG_ASSERT( w, "missing graphics width" );
 
@@ -346,11 +326,7 @@ basegfx::B2DPolygon SalGraphics::mirror( const basegfx::B2DPolygon& i_rPoly, con
 
 basegfx::B2DPolyPolygon SalGraphics::mirror( const basegfx::B2DPolyPolygon& i_rPoly, const OutputDevice *i_pOutDev, bool i_bBack ) const
 {
-    long w;
-    if( i_pOutDev && i_pOutDev->GetOutDevType() == OUTDEV_VIRDEV )
-        w = i_pOutDev->GetOutputWidthPixel();
-    else
-        w = GetGraphicsWidth();
+    long w = GetGraphicsWidth();
 
     DBG_ASSERT( w, "missing graphics width" );