/* * Copyright © 2008 Red Hat, Inc. * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, copy, * modify, merge, publish, distribute, sublicense, and/or sell copies * of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * * Author: Carl D. Worth */ /* Bug history: * * 2008-05-23: Caolan McNamara noticed a bug in OpenOffice.org where, * when using a very large font, space would be left for a * glyph but it would actually be rendered in the wrong * place. He wrote a minimal test case and posted the bug * here: * * corrupt glyph positions with large font * https://bugzilla.redhat.com/show_bug.cgi?id=448104 * * 2008-05-23: Carl Worth wrote this test for the cairo test suite to * exercise the bug.k */ #include "cairo-test.h" #define WIDTH 800 #define HEIGHT 800 #define TEXT_SIZE 10000 static cairo_test_draw_function_t draw; static const cairo_test_t test = { "large-font", "Draws a very large font to exercise a glyph-positioning bug", WIDTH, HEIGHT, draw }; static cairo_test_status_t draw (cairo_t *cr, int width, int height) { /* paint white so we don't need separate ref images for * RGB24 and ARGB32 */ cairo_set_source_rgb (cr, 1., 1., 1.); cairo_paint (cr); cairo_select_font_face (cr, "Bitstream Vera Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); cairo_set_font_size (cr, TEXT_SIZE); cairo_set_source_rgb (cr, 0, 0, 0); cairo_move_to (cr, -TEXT_SIZE / 2, TEXT_SIZE / 2); cairo_show_text (cr, "xW"); return CAIRO_TEST_SUCCESS; } int main (void) { return cairo_test (&test); }