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There seems to be some odd behaviour when GTK is asked to draw an

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outline polygon with a clipping rectangle active. I don't know or
care whether this is GTK or my X server or what, but I'm working
around it by drawing the lines myself, which seems to sort it out.

[originally from svn r6227]
This commit is contained in:
Simon Tatham
2005-08-28 13:52:58 +00:00
parent 1d0573109c
commit 8f46a30e69
1 changed files with 11 additions and 1 deletions
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12
gtk.c
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@ -373,7 +373,17 @@ void gtk_draw_poly(void *handle, int *coords, int npoints,
}
assert(outlinecolour >= 0);
gdk_gc_set_foreground(fe->gc, &fe->colours[outlinecolour]);
gdk_draw_polygon(fe->pixmap, fe->gc, FALSE, points, npoints);
/*
* In principle we ought to be able to use gdk_draw_polygon for
* the outline as well. In fact, it turns out to interact badly
* with a clipping region, for no terribly obvious reason, so I
* draw the outline as a sequence of lines instead.
*/
for (i = 0; i < npoints; i++)
gdk_draw_line(fe->pixmap, fe->gc,
points[i].x, points[i].y,
points[(i+1)%npoints].x, points[(i+1)%npoints].y);
sfree(points);
}