mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2025-12-20 14:00:10 +01:00
179 lines
6.2 KiB
C
179 lines
6.2 KiB
C
/*
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* Copyright © 2011 Nis Martensen
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "cairo-test.h"
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#define OPERATORS_COUNT 29
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#define WIDTH 160
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#define HEIGHT 120
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static void
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example (cairo_t *cr, const char *name)
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{
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cairo_save (cr);
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cairo_push_group_with_content (cr, cairo_surface_get_content (cairo_get_target (cr)));
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cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
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cairo_clip (cr);
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cairo_rectangle (cr, 0, 0, 120, 90);
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cairo_set_source_rgba (cr, 0.7, 0, 0, 0.8);
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cairo_fill (cr);
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if (strcmp (name, "clear") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
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else if (strcmp (name, "source") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
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else if (strcmp (name, "over") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
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else if (strcmp (name, "in") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_IN);
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else if (strcmp (name, "out") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_OUT);
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else if (strcmp (name, "atop") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_ATOP);
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else if (strcmp (name, "dest") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_DEST);
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else if (strcmp (name, "dest_over") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_DEST_OVER);
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else if (strcmp (name, "dest_in") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_DEST_IN);
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else if (strcmp (name, "dest_out") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_DEST_OUT);
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else if (strcmp (name, "dest_atop") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_DEST_ATOP);
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else if (strcmp (name, "xor") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_XOR);
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else if (strcmp (name, "add") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_ADD);
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else if (strcmp (name, "saturate") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_SATURATE);
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else if (strcmp (name, "multiply") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_MULTIPLY);
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else if (strcmp (name, "screen") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_SCREEN);
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else if (strcmp (name, "overlay") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_OVERLAY);
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else if (strcmp (name, "darken") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_DARKEN);
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else if (strcmp (name, "lighten") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_LIGHTEN);
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else if (strcmp (name, "color_dodge") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_COLOR_DODGE);
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else if (strcmp (name, "color_burn") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_COLOR_BURN);
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else if (strcmp (name, "hard_light") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_HARD_LIGHT);
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else if (strcmp (name, "soft_light") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_SOFT_LIGHT);
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else if (strcmp (name, "difference") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_DIFFERENCE);
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else if (strcmp (name, "exclusion") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_EXCLUSION);
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else if (strcmp (name, "hsl_hue") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_HSL_HUE);
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else if (strcmp (name, "hsl_saturation") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_HSL_SATURATION);
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else if (strcmp (name, "hsl_color") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_HSL_COLOR);
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else if (strcmp (name, "hsl_luminosity") == 0)
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cairo_set_operator (cr, CAIRO_OPERATOR_HSL_LUMINOSITY);
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cairo_rectangle (cr, 40, 30, 120, 90);
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cairo_set_source_rgba (cr, 0, 0, 0.9, 0.4);
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cairo_fill (cr);
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cairo_pattern_t *pattern = cairo_pop_group (cr);
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cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
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cairo_clip (cr);
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// Make problems with CAIRO_CONTENT_COLOR visible
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if (cairo_surface_get_content (cairo_get_target (cr)) == CAIRO_CONTENT_COLOR) {
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_paint (cr);
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}
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cairo_set_source (cr, pattern);
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cairo_pattern_destroy (pattern);
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cairo_paint (cr);
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cairo_restore (cr);
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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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cairo_set_font_size (cr, 17);
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cairo_move_to (cr, WIDTH + 20, 70);
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cairo_set_source_rgb (cr, 1, 1, 0);
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cairo_show_text (cr, name);
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cairo_translate (cr, 0, HEIGHT);
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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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example (cr, "clear");
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example (cr, "source");
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example (cr, "over");
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example (cr, "in");
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example (cr, "out");
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example (cr, "atop");
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example (cr, "dest");
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example (cr, "dest_over");
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example (cr, "dest_in");
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example (cr, "dest_out");
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example (cr, "dest_atop");
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example (cr, "xor");
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example (cr, "add");
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example (cr, "saturate");
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example (cr, "multiply");
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example (cr, "screen");
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example (cr, "overlay");
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example (cr, "darken");
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example (cr, "lighten");
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example (cr, "color_dodge");
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example (cr, "color_burn");
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example (cr, "hard_light");
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example (cr, "soft_light");
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example (cr, "difference");
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example (cr, "exclusion");
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example (cr, "hsl_hue");
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example (cr, "hsl_saturation");
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example (cr, "hsl_color");
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example (cr, "hsl_luminosity");
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (operator_www,
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"Operator samples from https://cairographics.org/operators/",
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"operator", /* keywords */
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NULL, /* requirements */
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WIDTH * 2, HEIGHT * OPERATORS_COUNT,
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NULL, draw)
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