From f5499d206a8b77340e5466fadfd2d087eb9cd67e Mon Sep 17 00:00:00 2001 From: Paul Davis Date: Wed, 12 Feb 2014 15:26:53 -0500 Subject: slight code tidy for Line::render() ... don't use 0.5 pixel adjustment if the line width > 1.0 --- libs/canvas/line.cc | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'libs/canvas/line.cc') diff --git a/libs/canvas/line.cc b/libs/canvas/line.cc index 61acf89252..09f9061c85 100644 --- a/libs/canvas/line.cc +++ b/libs/canvas/line.cc @@ -60,11 +60,17 @@ Line::render (Rect const & /*area*/, Cairo::RefPtr context) cons Duple p0 = item_to_window (Duple (_points[0].x, _points[0].y)); Duple p1 = item_to_window (Duple (_points[1].x, _points[1].y)); - /* See Cairo FAQ on single pixel lines to understand why we add 0.5 - */ + if (_outline_width <= 1.0) { + /* See Cairo FAQ on single pixel lines to understand why we add 0.5 + */ + + const Duple half_a_pixel (0.5, 0.5); + p0 = p0.translate (half_a_pixel); + p1 = p1.translate (half_a_pixel); + } - context->move_to (p0.x + 0.5, p0.y + 0.5); - context->line_to (p1.x + 0.5, p1.y + 0.5); + context->move_to (p0.x, p0.y); + context->line_to (p1.x, p1.y); context->stroke (); } -- cgit v1.2.3