Gnome canvas example?
- From: "David J. Topper" <topper virginia edu>
- To: gnome-list gnome org
- Subject: Gnome canvas example?
- Date: Tue, 26 Sep 2000 15:15:52 -0400
Hi all,
Are there some better examples than those on developer.gnome.org? The
ones (Piskvorky, etc..) show don't help me out here.
I'm parsing through the gnome-canvas example included with the library
... the arrowhead one to be specific.
Can someone fill me on in how this works (taken from the arrowhead
example):
points = gnome_canvas_points_new (2);
points->coords[0] = LEFT;
points->coords[1] = MIDDLE;
points->coords[2] = RIGHT;
points->coords[3] = MIDDLE;
item = gnome_canvas_item_new (root,
gnome_canvas_line_get_type (),
"points", points,
"fill_color", "mediumseagreen",
"width_pixels", DEFAULT_WIDTH * 10,
"last_arrowhead", TRUE,
NULL);
The coordinates are 1 dimensional! So how does this draw a 2D arrow?
I'm sure it happens elsewhere in the code, but still. Seems a bit odd.
No X/Y concept here. I don't see any reference to "ponts" as part of
the line item in the GNOME reference guide either.
Also ... I can't find a complete ref. for args to
gnome_canvas_item_new. It seems some are reserved (like points?) while
others you can define yourself.
Similarly for gnome_canvas_points_new(). Can't find any docs for it.
I'd love to start using more GNOME code but this kind of omission from
docs makes it really hard.
Help?!?!?
DT
--
Technical Director - Virginia Center for Computer Music
http://www.people.virginia.edu/~djt7p
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