Grcov report - dash-scale.c

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/*

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 * Copyright © 2005 Red Hat, Inc.

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 * Permission to use, copy, modify, distribute, and sell this software

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 * and its documentation for any purpose is hereby granted without

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 * fee, provided that the above copyright notice appear in all copies

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 * and that both that copyright notice and this permission notice

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 * appear in supporting documentation, and that the name of

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 * Red Hat, Inc. not be used in advertising or publicity pertaining to

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 * distribution of the software without specific, written prior

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 * permission. Red Hat, Inc. makes no representations about the

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 * suitability of this software for any purpose.  It is provided "as

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 * is" without express or implied warranty.

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 * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS

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 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND

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 * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,

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 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER

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 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION

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 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR

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 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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 * Author: Carl D. Worth <cworth@cworth.org>

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*/

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#include "cairo-test.h"

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#define LINE_WIDTH	8.

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#define SIZE		(5 * LINE_WIDTH)

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#define PAD		(2 * LINE_WIDTH)

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static void

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make_path (cairo_t *cr)

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    cairo_move_to (cr, 0., 0.);

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    cairo_rel_line_to (cr, 0., SIZE);

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    cairo_rel_line_to (cr, SIZE, 0.);

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    cairo_close_path (cr);

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    cairo_move_to (cr, 2 * LINE_WIDTH, 0.);

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    cairo_rel_line_to (cr, 3 * LINE_WIDTH, 0.);

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    cairo_rel_line_to (cr, 0., 3 * LINE_WIDTH);

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static void

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draw_three_shapes (cairo_t *cr)

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    cairo_save (cr);

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    make_path (cr);

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    cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);

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    cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL);

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    cairo_stroke (cr);

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    cairo_translate (cr, SIZE + PAD, 0.);

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    make_path (cr);

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    cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);

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    cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);

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    cairo_stroke (cr);

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    cairo_translate (cr, SIZE + PAD, 0.);

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    make_path (cr);

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    cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);

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    cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER);

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    cairo_stroke (cr);

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    cairo_restore (cr);

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static cairo_test_status_t

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3

draw (cairo_t *cr, int width, int height)

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    double dash[] = {1.5 * LINE_WIDTH};

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    /* We draw in the default black, so paint white first. */

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    cairo_save (cr);

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    cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */

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    cairo_paint (cr);

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    cairo_restore (cr);

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    cairo_translate (cr, PAD, PAD);

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    cairo_set_dash (cr, dash, ARRAY_LENGTH (dash), - 2 * LINE_WIDTH);

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    cairo_set_line_width (cr, LINE_WIDTH);

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    draw_three_shapes (cr);

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    cairo_translate (cr, 0, SIZE + 2 * PAD);

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    cairo_save (cr);

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	cairo_set_dash (cr, dash, ARRAY_LENGTH (dash), - 2 * LINE_WIDTH);

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	cairo_set_line_width (cr, LINE_WIDTH);

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	cairo_scale (cr, 1, 2);

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	draw_three_shapes (cr);

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    cairo_restore (cr);

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    cairo_translate (cr, 0, 2 * (SIZE + PAD));

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    cairo_save (cr);

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	cairo_scale (cr, 1, 2);

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	cairo_set_dash (cr, dash, ARRAY_LENGTH (dash), - 2 * LINE_WIDTH);

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	cairo_set_line_width (cr, LINE_WIDTH);

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	draw_three_shapes (cr);

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    cairo_restore (cr);

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    return CAIRO_TEST_SUCCESS;

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CAIRO_TEST (dash_scale,

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	    "Test interactions of cairo_set_dash and cairo_scale, (in particular with a non-uniformly scaled pen)",

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	    "dash, stroke, transform", /* keywords */

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	    NULL, /* requirements */

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	    3 * (PAD + SIZE) + PAD,

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	    PAD + 5 * SIZE + 2 * (2 * PAD) + PAD,

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	    NULL, draw)