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/*
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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: Carl D. Worth <cworth@cworth.org>
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 */
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#include "cairo-test.h"
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#include <stdio.h>
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#include <cairo.h>
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#if CAIRO_HAS_PS_SURFACE
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#include <cairo-ps.h>
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#endif
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#if CAIRO_HAS_PDF_SURFACE
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#include <cairo-pdf.h>
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#endif
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/* The PostScript and PDF backends are now integrated into the main
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 * test suite, so we are getting good verification of most things
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 * there.
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 *
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 * One thing that isn't supported there yet is multi-page output. So,
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 * for now we have this one-off test. There's no automatic
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 * verififcation here yet, but you can manually view the output to
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 * make sure it looks happy.
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 */
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#define WIDTH_IN_INCHES  3
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#define HEIGHT_IN_INCHES 3
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#define WIDTH_IN_POINTS  (WIDTH_IN_INCHES  * 72.0)
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#define HEIGHT_IN_POINTS (HEIGHT_IN_INCHES * 72.0)
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#define BASENAME         "multi-page.out"
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static void
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draw_smiley (cairo_t *cr, double width, double height, double smile_ratio)
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{
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#define STROKE_WIDTH .04
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    double size;
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    double theta = M_PI / 4 * smile_ratio;
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    double dx = sqrt (0.005) * cos (theta);
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    double dy = sqrt (0.005) * sin (theta);
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    cairo_save (cr);
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    if (width > height)
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	size = height;
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    else
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	size = width;
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    cairo_translate (cr, (width - size) / 2.0, (height - size) / 2.0);
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    cairo_scale (cr, size, size);
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    /* Fill face */
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    cairo_arc (cr, 0.5, 0.5, 0.5 - STROKE_WIDTH, 0, 2 * M_PI);
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    cairo_set_source_rgb (cr, 1, 1, 0);
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    cairo_fill_preserve (cr);
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    cairo_set_source_rgb (cr, 0, 0, 0);
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    /* Stroke face */
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    cairo_set_line_width (cr, STROKE_WIDTH / 2.0);
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    cairo_stroke (cr);
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    /* Eyes */
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    cairo_set_line_width (cr, STROKE_WIDTH);
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    cairo_arc (cr, 0.3, 0.4, STROKE_WIDTH, 0, 2 * M_PI);
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    cairo_fill (cr);
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    cairo_arc (cr, 0.7, 0.4, STROKE_WIDTH, 0, 2 * M_PI);
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    cairo_fill (cr);
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    /* Mouth */
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    cairo_move_to (cr,
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		   0.35 - dx, 0.75 - dy);
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    cairo_curve_to (cr,
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		    0.35 + dx, 0.75 + dy,
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		    0.65 - dx, 0.75 + dy,
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		    0.65 + dx, 0.75 - dy);
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    cairo_stroke (cr);
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    cairo_restore (cr);
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}
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static void
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draw_some_pages (cairo_surface_t *surface)
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{
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    cairo_t *cr;
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    int i;
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    cr = cairo_create (surface);
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#define NUM_FRAMES 5
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    for (i=0; i < NUM_FRAMES; i++) {
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	draw_smiley (cr, WIDTH_IN_POINTS, HEIGHT_IN_POINTS,
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	             (double) i / (NUM_FRAMES - 1));
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	/* Duplicate the last frame onto another page. (This is just a
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	 * way to sneak cairo_copy_page into the test).
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	 */
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	if (i == (NUM_FRAMES - 1))
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	    cairo_copy_page (cr);
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	cairo_show_page (cr);
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    }
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    cairo_destroy (cr);
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}
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static cairo_test_status_t
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preamble (cairo_test_context_t *ctx)
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{
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    cairo_surface_t *surface;
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    cairo_status_t status;
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    char *filename;
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1
    cairo_test_status_t result = CAIRO_TEST_UNTESTED;
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1
    const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : ".";
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#if CAIRO_HAS_PS_SURFACE
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2
    if (cairo_test_is_target_enabled (ctx, "ps2") ||
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1
        cairo_test_is_target_enabled (ctx, "ps3"))
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    {
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	if (result == CAIRO_TEST_UNTESTED)
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	    result = CAIRO_TEST_SUCCESS;
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	xasprintf (&filename, "%s/%s", path, BASENAME ".ps");
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	surface = cairo_ps_surface_create (filename,
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					   WIDTH_IN_POINTS, HEIGHT_IN_POINTS);
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	status = cairo_surface_status (surface);
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	if (status) {
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	    cairo_test_log (ctx, "Failed to create ps surface for file %s: %s\n",
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			    filename, cairo_status_to_string (status));
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	    result = CAIRO_TEST_FAILURE;
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	}
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	draw_some_pages (surface);
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	cairo_surface_destroy (surface);
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	printf ("multi-page: Please check %s to ensure it looks happy.\n", filename);
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	free (filename);
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    }
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#endif
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#if CAIRO_HAS_PDF_SURFACE
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    if (cairo_test_is_target_enabled (ctx, "pdf")) {
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	if (result == CAIRO_TEST_UNTESTED)
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	    result = CAIRO_TEST_SUCCESS;
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	xasprintf (&filename, "%s/%s", path, BASENAME ".pdf");
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	surface = cairo_pdf_surface_create (filename,
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					    WIDTH_IN_POINTS, HEIGHT_IN_POINTS);
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	status = cairo_surface_status (surface);
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	if (status) {
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	    cairo_test_log (ctx, "Failed to create pdf surface for file %s: %s\n",
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			    filename, cairo_status_to_string (status));
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	    result = CAIRO_TEST_FAILURE;
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	}
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	draw_some_pages (surface);
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	cairo_surface_destroy (surface);
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	printf ("multi-page: Please check %s to ensure it looks happy.\n", filename);
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	free (filename);
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    }
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#endif
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1
    return result;
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}
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CAIRO_TEST (multi_page,
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	    "Check the paginated surfaces handle multiple pages.",
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	    "paginated", /* keywords */
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	    "target=vector", /* requirements */
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	    0, 0,
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	    preamble, NULL)