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https://gitlab.freedesktop.org/cairo/cairo.git
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b52dda62fe
Without this, any tests that were using cairo_test_init rather than cairo_test would end up leaking a FILE* for the log file. So this keeps valgrind much more happy with the test suite.
136 lines
4.1 KiB
C
136 lines
4.1 KiB
C
/*
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* Copyright © 2005 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: Kristian Høgsberg <krh@redhat.com>
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*/
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#include <stdio.h>
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#include <cairo-svg.h>
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#include "cairo-test.h"
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/* Test SVG clipping */
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#define WIDTH_IN_POINTS 600
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#define HEIGHT_IN_POINTS 600
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static void
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test_clip (cairo_t *cr, double width, double height)
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{
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cairo_t *cr2;
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/* Basic test; set a square clip and draw a circle to be clipped
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* against it.*/
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cairo_rectangle (cr, 100, 100, 400, 400);
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cairo_clip (cr);
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cairo_arc (cr, 300, 300, 210, 0, 2 * M_PI);
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cairo_set_source_rgb (cr, 1, 0, 0);
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cairo_fill (cr);
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/* Add a plus shaped clip path to the square clip and draw a big
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* green square to test the new clip path. */
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cairo_save (cr);
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cairo_rectangle (cr, 250, 100, 100, 400);
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cairo_rectangle (cr, 100, 250, 400, 100);
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cairo_clip (cr);
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cairo_rectangle (cr, 0, 0, 600, 600);
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cairo_set_source_rgb (cr, 0, 1, 0);
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cairo_fill (cr);
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cairo_restore (cr);
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/* Set a bezier shape in addition to the rectangle clip set before
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* the cairo_save() to verify that we successfully removed the
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* plus shaped clip path and can set a new clip.*/
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cairo_move_to (cr, 600, 0);
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cairo_curve_to (cr, 300, 600, 0, 300, 600, 0);
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cairo_clip (cr);
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cairo_rectangle (cr, 0, 0, 600, 600);
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cairo_set_source_rgb (cr, 0, 0, 1);
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cairo_fill (cr);
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/* Create a new context for this surface to test overlapped
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* drawing from two contexts */
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cr2 = cairo_create (cairo_get_target (cr));
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/* Using the new context, draw a black vertical line, which should
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* appear unclipped on top of everything drawn so far. */
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cairo_move_to (cr2, 110, 0);
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cairo_line_to (cr2, 110, 600);
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cairo_stroke (cr2);
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/* Using the first context, draw another black vertical line.
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* This line should be clipped agaist the bezier clipping path set
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* earlier. */
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_move_to (cr, 400, 0);
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cairo_line_to (cr, 400, 600);
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cairo_stroke (cr);
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cairo_destroy (cr2);
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/* Test reset clip. Draw a transparent black circle over
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* everything. Specifically, make sure the circle extends outside
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* the square clip set at the top of this function. */
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cairo_reset_clip (cr);
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cairo_arc (cr, 300, 300, 220, 0, 2 * M_PI);
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cairo_set_source_rgba (cr, 0, 0, 0, 0.2);
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cairo_fill (cr);
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}
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int
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main (void)
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{
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cairo_t *cr;
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const char *filename = "svg-clip.svg";
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cairo_surface_t *surface;
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cairo_test_init ("svg-clip");
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surface = cairo_svg_surface_create (filename,
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WIDTH_IN_POINTS, HEIGHT_IN_POINTS);
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if (surface == NULL) {
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fprintf (stderr, "Failed to create svg surface for file %s\n", filename);
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return CAIRO_TEST_FAILURE;
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}
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cr = cairo_create (surface);
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test_clip (cr, WIDTH_IN_POINTS, HEIGHT_IN_POINTS);
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cairo_show_page (cr);
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cairo_destroy (cr);
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cairo_surface_destroy (surface);
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printf ("svg-surface: Please check %s to make sure it looks happy.\n",
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filename);
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cairo_test_fini ();
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return 0;
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}
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