Re: [gnomemm] Gnome::Canvas::Line::property_line_style()

[Samuel Abels <spam debain org>]

On Sat, 2004-09-25 at 19:52, Ole Laursen wrote:
> "..." <_janus_ katamail com> writes:
> 
> > Gnome::Canvas::Line segm = new Gnome::Canvas::Line(*(canvas->root()), points);
> > segm->property_width() = 2;
> > segm->property_color() = "black"
> > segm->property_line_style() = Gdk::LINE_DOUBLE_DASH;
> >
> > where "points" is an appropriate Gnome::Canvas::Points.
> >
> > The problem is that the line is filled black but without any
> > dashing. I tried also Gdk::LINE_ON_OFF_DASH, same problem. It's like
> > that this instrucion does nothing.
> 
> I don't think the anti-aliased canvas supports dashed lines, only the
> GDK-based one. Tough luck.

As an alternative, you could draw the canvas line using ArtVpathDash.

I copied & pasted this together, so I wouldn't bet that it's 100%
correct, but it gives you the idea:

-------------------------
Gnome::Canvas::Rect border;
ArtVpathDash        dash;
dash.offset  = 0;
dash.n_dash  = 3;
dash.dash    = art_new(double, 3);
dash.dash[0] = 1;
dash.dash[1] = 1;
dash.dash[2] = 1;
border.property_dash() = &dash;
-------------------------

AFAIK this should work with the AA'd canvas.

-Samuel
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