Grcov report - text-transform.c

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/*

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 * Copyright © 2006 Mozilla Corporation

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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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 * Mozilla Corporation 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. Mozilla Corporation 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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 * MOZILLA CORPORATION 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 MOZILLA CORPORATION 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: Vladimir Vukicevic <vladimir@pobox.com>

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*/

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#include "cairo-test.h"

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#define SIZE 100

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#define PAD 5

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#define FONT_SIZE 32.0

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static const char *png_filename = "romedalen.png";

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static void

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draw_text (cairo_t *cr)

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    cairo_matrix_t tm;

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    /* skew */

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    cairo_matrix_init (&tm, 1, 0,

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                       -0.25, 1,

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                       0, 0);

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    cairo_matrix_scale (&tm, FONT_SIZE, FONT_SIZE);

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    cairo_set_font_matrix (cr, &tm);

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    cairo_new_path (cr);

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    cairo_move_to (cr, 50, SIZE-PAD);

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    cairo_show_text (cr, "A");

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    /* rotate and scale */

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    cairo_matrix_init_rotate (&tm, M_PI / 2);

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    cairo_matrix_scale (&tm, FONT_SIZE, FONT_SIZE * 2.0);

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    cairo_set_font_matrix (cr, &tm);

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    cairo_new_path (cr);

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    cairo_move_to (cr, PAD, PAD + 25);

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    cairo_show_text (cr, "A");

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    cairo_matrix_init_rotate (&tm, M_PI / 2);

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    cairo_matrix_scale (&tm, FONT_SIZE * 2.0, FONT_SIZE);

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    cairo_set_font_matrix (cr, &tm);

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    cairo_new_path (cr);

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    cairo_move_to (cr, PAD, PAD + 50);

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    cairo_show_text (cr, "A");

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static cairo_test_status_t

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

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    const cairo_test_context_t *ctx = cairo_test_get_context (cr);

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    cairo_pattern_t *pattern;

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    cairo_set_source_rgb (cr, 1., 1., 1.);

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    cairo_paint (cr);

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    cairo_set_source_rgb (cr, 0., 0., 0.);

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    cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans",

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			    CAIRO_FONT_SLANT_NORMAL,

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			    CAIRO_FONT_WEIGHT_NORMAL);

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    draw_text (cr);

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    cairo_translate (cr, SIZE, SIZE);

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    cairo_rotate (cr, M_PI);

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    pattern = cairo_test_create_pattern_from_png (ctx, png_filename);

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    cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);

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    cairo_set_source (cr, pattern);

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    cairo_pattern_destroy (pattern);

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    draw_text (cr);

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    return CAIRO_TEST_SUCCESS;

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CAIRO_TEST (text_transform,

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	    "Test various applications of the font matrix",

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	    "text, transform", /* keywords */

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	    NULL, /* requirements */

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	    SIZE, SIZE,

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	    NULL, draw)