diff options
Diffstat (limited to 'toolkit/source/awt/vclxwindow.cxx')
| -rw-r--r-- | toolkit/source/awt/vclxwindow.cxx | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/toolkit/source/awt/vclxwindow.cxx b/toolkit/source/awt/vclxwindow.cxx index a8c0912a583e..9ca21c5fb36b 100644 --- a/toolkit/source/awt/vclxwindow.cxx +++ b/toolkit/source/awt/vclxwindow.cxx @@ -2506,7 +2506,14 @@ void VCLXWindow::setZoom( float fZoomX, float /*fZoomY*/ ) throw(::com::sun::sta ::vos::OGuard aGuard( GetMutex() ); if ( GetWindow() ) - GetWindow()->SetZoom( Fraction( fZoomX ) ); + { + // Fraction::Fraction takes a double, but we have a float only. + // The implicit conversion from float to double can result in a precision loss, i.e. 1.2 is converted to + // 1.200000000047something. To prevent this, we convert explicitly to double, and round it. + double nZoom( fZoomX ); + nZoom = ::rtl::math::round( nZoom, 4 ); + GetWindow()->SetZoom( Fraction( nZoom ) ); + } } // ::com::sun::star::lang::XEventListener |