mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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e90073f7dd
Avoid calling libtool to link every single test case, by building just one binary from all the sources. This binary is then given the task of choosing tests to run (based on user selection and individual test requirement), forking each test into its own process and accumulating the results.
141 lines
4.6 KiB
C
141 lines
4.6 KiB
C
/*
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* Copyright © 2006 Red Hat, Inc.
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*
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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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*
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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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*
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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 TEXT_SIZE 12
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#define PAD 4
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#define TEXT "text"
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static cairo_bool_t
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text_extents_equal (const cairo_text_extents_t *A,
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const cairo_text_extents_t *B)
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{
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return A->x_bearing == B->x_bearing &&
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A->y_bearing == B->y_bearing &&
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A->width == B->width &&
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A->height == B->height &&
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A->x_advance == B->x_advance &&
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A->y_advance == B->y_advance;
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}
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static cairo_test_status_t
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box_text (const cairo_test_context_t *ctx, cairo_t *cr,
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const char *utf8,
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double x, double y)
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{
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double line_width;
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cairo_text_extents_t extents = {0}, scaled_extents = {0};
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cairo_scaled_font_t *scaled_font;
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cairo_status_t status;
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cairo_save (cr);
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cairo_text_extents (cr, utf8, &extents);
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scaled_font = cairo_get_scaled_font (cr);
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cairo_scaled_font_text_extents (scaled_font, TEXT, &scaled_extents);
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status = cairo_scaled_font_status (scaled_font);
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if (status)
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return cairo_test_status_from_status (ctx, status);
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if (! text_extents_equal (&extents, &scaled_extents)) {
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cairo_test_log (ctx,
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"Error: extents differ when they shouldn't:\n"
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"cairo_text_extents(); extents (%g, %g, %g, %g, %g, %g)\n"
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"cairo_scaled_font_text_extents(); extents (%g, %g, %g, %g, %g, %g)\n",
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extents.x_bearing, extents.y_bearing,
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extents.width, extents.height,
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extents.x_advance, extents.y_advance,
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scaled_extents.x_bearing, scaled_extents.y_bearing,
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scaled_extents.width, scaled_extents.height,
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scaled_extents.x_advance, scaled_extents.y_advance);
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return CAIRO_TEST_FAILURE;
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}
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line_width = cairo_get_line_width (cr);
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cairo_rectangle (cr,
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x + extents.x_bearing - line_width / 2,
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y + extents.y_bearing - line_width / 2,
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extents.width + line_width,
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extents.height + line_width);
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cairo_stroke (cr);
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cairo_move_to (cr, x, y);
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cairo_show_text (cr, utf8);
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cairo_restore (cr);
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return CAIRO_TEST_SUCCESS;
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}
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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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{
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const cairo_test_context_t *ctx = cairo_test_get_context (cr);
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cairo_test_status_t status;
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cairo_text_extents_t extents;
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cairo_matrix_t matrix;
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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_select_font_face (cr, "Bitstream Vera Sans",
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CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_NORMAL);
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cairo_set_font_size (cr, TEXT_SIZE);
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cairo_translate (cr, PAD, PAD);
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cairo_set_line_width (cr, 1.0);
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cairo_text_extents (cr, TEXT, &extents);
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/* Draw text and bounding box */
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cairo_set_source_rgb (cr, 0, 0, 0); /* black */
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status = box_text (ctx, cr, TEXT, 0, - extents.y_bearing);
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if (status)
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return status;
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/* Then draw again with the same coordinates, but with a font
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* matrix to position the text below and shifted a bit to the
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* right. */
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cairo_matrix_init_translate (&matrix, TEXT_SIZE / 2, TEXT_SIZE + PAD);
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cairo_matrix_scale (&matrix, TEXT_SIZE, TEXT_SIZE);
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cairo_set_font_matrix (cr, &matrix);
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cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
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status = box_text (ctx, cr, TEXT, 0, - extents.y_bearing);
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if (status)
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return status;
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (font_matrix_translation,
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"Test that translation in a font matrix can be used to offset a string",
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"font", /* keywords */
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NULL, /* requirements */
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38, 34,
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NULL, draw)
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