+ SetScale( scale );
+ }
+}
+
+void XYWnd::ZoomInWithMouse( int pointx, int pointy ){
+ float old_scale = Scale();
+ ZoomIn();
+ if ( g_xywindow_globals.m_bImprovedWheelZoom ) {
+ float scale_diff = 1.0 / old_scale - 1.0 / Scale();
+ int nDim1 = ( m_viewType == YZ ) ? 1 : 0;
+ int nDim2 = ( m_viewType == XY ) ? 1 : 2;
+ Vector3 origin = GetOrigin();
+ origin[nDim1] += scale_diff * (pointx - 0.5 * Width());
+ origin[nDim2] -= scale_diff * (pointy - 0.5 * Height());
+ SetOrigin( origin );