[Xfce4-commits] [panel-plugins/xfce4-cpugraph-plugin] 14/16: Make grid more crisp

[noreply at xfce.org]

This is an automated email from the git hooks/post-receive script.

a   n   d   r   e       p   u   s   h   e   d       a       c   o   m   m   i   t       t   o       b   r   a   n   c   h       m   a   s   t   e   r   
   in repository panel-plugins/xfce4-cpugraph-plugin.

commit b9493a3dff5ad107932c2cbc2b1ba674fec8f5fe
Author: Andre Miranda <andreldm at xfce.org>
Date:   Wed Apr 24 00:20:57 2019 -0300

    Make grid more crisp
    
    The +0.5 trick is described here:
    https://cairographics.org/FAQ/#sharp_lines
---
 panel-plugin/mode.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/panel-plugin/mode.c b/panel-plugin/mode.c
index c1d66ad..caadf72 100644
--- a/panel-plugin/mode.c
+++ b/panel-plugin/mode.c
@@ -157,20 +157,21 @@ void draw_graph_grid( CPUGraph *base, cairo_t *cr, gint w, gint h )
 	last.y = h;
 
 	gdk_cairo_set_source_rgba( cr, &base->colors[1] );
+	cairo_set_line_cap( cr, CAIRO_LINE_CAP_SQUARE );
+	cairo_set_line_width( cr, 1 );
+
 	for( x = 0; x * 6 < w; x++ )
 	{
 		/* draw line */
-		cairo_set_line_cap( cr, CAIRO_LINE_CAP_SQUARE );
-		cairo_move_to( cr, x * 6, 0 );
-		cairo_line_to( cr, x * 6,  h - 1 );
+		cairo_move_to( cr, x * 6 + 0.5, 0.5 );
+		cairo_line_to( cr, x * 6 + 0.5, h - 1 + 0.5 );
 		cairo_stroke( cr );
 	}
 	for( y = 0; y * 4 < h; y++ )
 	{
 		/* draw line */
-		cairo_set_line_cap( cr, CAIRO_LINE_CAP_SQUARE );
-		cairo_move_to( cr, 0, y * 4 );
-		cairo_line_to( cr, w - 1,  y * 4 );
+		cairo_move_to( cr, 0.5, y * 4 + 0.5 );
+		cairo_line_to( cr, w - 1  + 0.5, y * 4 + 0.5 );
 		cairo_stroke( cr );
 	}
 
@@ -181,9 +182,8 @@ void draw_graph_grid( CPUGraph *base, cairo_t *cr, gint w, gint h )
 		current.x = x;
 		current.y = h - usage;
 		/* draw line */
-		cairo_set_line_cap( cr, CAIRO_LINE_CAP_SQUARE );
-		cairo_move_to( cr, current.x, current.y );
-		cairo_line_to( cr, last.x,  last.y );
+		cairo_move_to( cr, current.x + 0.5, current.y + 0.5 );
+		cairo_line_to( cr, last.x + 0.5, last.y + 0.5 );
 		cairo_stroke( cr );
 		last = current;
 	}

-- 
To stop receiving notification emails like this one, please contact
the administrator of this repository.