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Test closed dashed paths where the first and last sub-path do not join.

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This tests the situation reported by Keith Wells where the start point of a
closed dashed path was not being properly capped.
This commit is contained in:
Jeff Muizelaar 2006-07-15 14:39:26 -04:00
parent c70edff084
commit b607cdff98
3 changed files with 27 additions and 18 deletions
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test/dash-caps-joins-ps-argb32-ref.png
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45
test/dash-caps-joins.c
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@ -41,7 +41,7 @@ cairo_test_t test = {
"dash-caps-joins",
"Test caps and joins when dashing",
3 * (PAD + SIZE) + PAD,
PAD + SIZE + PAD,
PAD + SIZE + PAD + SIZE + PAD,
draw
};
@ -62,6 +62,8 @@ static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
double dash[] = {LINE_WIDTH, 1.5 * LINE_WIDTH};
double dash_offset = -2 * LINE_WIDTH;
int i;
/* We draw in the default black, so paint white first. */
cairo_save (cr);
@ -69,29 +71,36 @@ draw (cairo_t *cr, int width, int height)
cairo_paint (cr);
cairo_restore (cr);
cairo_set_line_width (cr, LINE_WIDTH);
cairo_set_dash (cr, dash, sizeof(dash)/sizeof(dash[0]), - 2 * LINE_WIDTH);
for (i=0; i<2; i++) {
cairo_save (cr);
cairo_set_line_width (cr, LINE_WIDTH);
cairo_set_dash (cr, dash, sizeof(dash)/sizeof(dash[0]), dash_offset);
cairo_translate (cr, PAD, PAD);
cairo_translate (cr, PAD, PAD);
make_path (cr);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL);
cairo_stroke (cr);
make_path (cr);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL);
cairo_stroke (cr);
cairo_translate (cr, SIZE + PAD, 0.);
cairo_translate (cr, SIZE + PAD, 0.);
make_path (cr);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
cairo_stroke (cr);
make_path (cr);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
cairo_stroke (cr);
cairo_translate (cr, SIZE + PAD, 0.);
cairo_translate (cr, SIZE + PAD, 0.);
make_path (cr);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER);
cairo_stroke (cr);
make_path (cr);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER);
cairo_stroke (cr);
cairo_restore (cr);
cairo_translate (cr, 0., SIZE + PAD);
dash_offset = 0;
}
return CAIRO_TEST_SUCCESS;
}