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RS_Snapper::drawSnapper

Posted by ravas on Oct 17, 2015; 5:55pm
URL: https://forum.librecad.org/RS-Snapper-drawSnapper-tp5712450.html

What is this for
        if (snapCoord.valid && snapCoord!=snapSpot)
        {            
            RS_OverlayLine *line=new RS_OverlayLine(nullptr,
            {graphicView->toGui(snapSpot)+RS_Vector{-5.,0.},
             graphicView->toGui(snapSpot)+RS_Vector{-1.,4.}});
            line->setPen(line_pen);
            container->addEntity(line);
            line=new RS_OverlayLine(nullptr,
            {graphicView->toGui(snapSpot)+RS_Vector{0.,5.},
             graphicView->toGui(snapSpot)+RS_Vector{4.,1.}});
            line->setPen(line_pen);
            container->addEntity(line);
            line=new RS_OverlayLine(nullptr,
            {graphicView->toGui(snapSpot)+RS_Vector{5.,0.},
             graphicView->toGui(snapSpot)+RS_Vector{1.,-4.}});
            line->setPen(line_pen);
            container->addEntity(line);
            line=new RS_OverlayLine(nullptr,
            {graphicView->toGui(snapSpot)+RS_Vector{0.,-5.},
             graphicView->toGui(snapSpot)+RS_Vector{-4.,-1.}});
            line->setPen(line_pen);
            container->addEntity(line);

            graphicView->redraw(RS2::RedrawOverlay); // redraw will happen in the mouse movement event
        }