280 lines
8.7 KiB
C
280 lines
8.7 KiB
C
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/*
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* Copyright © 2023 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Matthias Clasen <mclasen@redhat.com>
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*/
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#include <gtk/gtk.h>
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#include "gsk/gskpathprivate.h"
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#include "gsk/gskcontourprivate.h"
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static gboolean
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add_segment (GskPathOperation op,
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const graphene_point_t *pts,
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gsize n_pts,
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float weight,
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gpointer user_data)
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{
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GskPathBuilder *builder = user_data;
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switch (op)
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{
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case GSK_PATH_MOVE:
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gsk_path_builder_move_to (builder, pts[0].x, pts[0].y);
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break;
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case GSK_PATH_LINE:
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gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
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break;
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case GSK_PATH_QUAD:
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gsk_path_builder_quad_to (builder,
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pts[1].x, pts[1].y,
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pts[2].x, pts[2].y);
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break;
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case GSK_PATH_CUBIC:
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gsk_path_builder_cubic_to (builder,
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pts[1].x, pts[1].y,
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pts[2].x, pts[2].y,
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pts[3].x, pts[3].y);
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break;
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case GSK_PATH_CONIC:
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gsk_path_builder_conic_to (builder,
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pts[1].x, pts[1].y,
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pts[2].x, pts[2].y,
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weight);
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break;
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case GSK_PATH_CLOSE:
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gsk_path_builder_close (builder);
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break;
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default:
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g_assert_not_reached ();
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}
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return TRUE;
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}
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static GskPath *
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convert_to_standard_contour (GskPath *path)
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{
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GskPathBuilder *builder;
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builder = gsk_path_builder_new ();
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gsk_path_foreach (path, -1, add_segment, builder);
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return gsk_path_builder_free_to_path (builder);
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}
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static void
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test_circle_roundtrip (void)
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{
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GskPathBuilder *builder;
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GskPath *path, *path1;
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const GskContour *contour, *contour1;
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char *s;
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builder = gsk_path_builder_new ();
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gsk_path_builder_add_circle (builder, &GRAPHENE_POINT_INIT (100, 100), 33);
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path = gsk_path_builder_free_to_path (builder);
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contour = gsk_path_get_contour (path, 0);
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g_assert_cmpstr (gsk_contour_get_type_name (contour), ==, "GskCircleContour");
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s = gsk_path_to_string (path);
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path1 = gsk_path_parse (s);
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contour1 = gsk_path_get_contour (path1, 0);
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g_free (s);
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g_assert_cmpstr (gsk_contour_get_type_name (contour1), ==, "GskCircleContour");
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gsk_path_unref (path1);
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gsk_path_unref (path);
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}
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static void
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test_circle_winding (void)
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{
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GskPathBuilder *builder;
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GskPath *path, *path1, *path2;
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const GskContour *contour, *contour1, *contour2;
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builder = gsk_path_builder_new ();
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gsk_path_builder_add_circle (builder, &GRAPHENE_POINT_INIT (100, 100), 33);
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path = gsk_path_builder_free_to_path (builder);
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contour = gsk_path_get_contour (path, 0);
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path1 = convert_to_standard_contour (path);
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contour1 = gsk_path_get_contour (path1, 0);
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builder = gsk_path_builder_new ();
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gsk_path_builder_add_reverse_path (builder, path);
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path2 = gsk_path_builder_free_to_path (builder);
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contour2 = gsk_path_get_contour (path2, 0);
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g_assert_true (gsk_contour_get_winding (contour, &GRAPHENE_POINT_INIT (100, 100)) == 1);
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g_assert_true (gsk_contour_get_winding (contour1, &GRAPHENE_POINT_INIT (100, 100)) == 1);
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g_assert_true (gsk_contour_get_winding (contour2, &GRAPHENE_POINT_INIT (100, 100)) == -1);
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gsk_path_unref (path2);
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gsk_path_unref (path1);
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gsk_path_unref (path);
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}
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static void
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test_rounded_rect_roundtrip (void)
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{
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GskRoundedRect rr;
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GskPathBuilder *builder;
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GskPath *path, *path2;
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const GskContour *contour;
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char *s;
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/* our parser only recognizes 'complete' rounded rects
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* (i.e. no empty curves omitted).
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*/
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rr.bounds = GRAPHENE_RECT_INIT (100, 100, 200, 150);
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rr.corner[GSK_CORNER_TOP_LEFT] = GRAPHENE_SIZE_INIT (10, 10);
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rr.corner[GSK_CORNER_TOP_RIGHT] = GRAPHENE_SIZE_INIT (20, 10);
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rr.corner[GSK_CORNER_BOTTOM_RIGHT] = GRAPHENE_SIZE_INIT (20, 20);
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rr.corner[GSK_CORNER_BOTTOM_LEFT] = GRAPHENE_SIZE_INIT (5, 10);
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builder = gsk_path_builder_new ();
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gsk_path_builder_add_rounded_rect (builder, &rr);
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path = gsk_path_builder_free_to_path (builder);
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contour = gsk_path_get_contour (path, 0);
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g_assert_cmpstr (gsk_contour_get_type_name (contour), ==, "GskRoundedRectContour");
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s = gsk_path_to_string (path);
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path2 = gsk_path_parse (s);
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contour = gsk_path_get_contour (path2, 0);
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g_assert_cmpstr (gsk_contour_get_type_name (contour), ==, "GskRoundedRectContour");
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g_free (s);
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gsk_path_unref (path2);
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gsk_path_unref (path);
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}
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static void
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test_rounded_rect_winding (void)
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{
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GskRoundedRect rr;
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GskPathBuilder *builder;
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GskPath *path, *path1, *path2;
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const GskContour *contour, *contour1, *contour2;
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rr.bounds = GRAPHENE_RECT_INIT (100, 100, 200, 150);
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rr.corner[GSK_CORNER_TOP_LEFT] = GRAPHENE_SIZE_INIT (10, 10);
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rr.corner[GSK_CORNER_TOP_RIGHT] = GRAPHENE_SIZE_INIT (20, 10);
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rr.corner[GSK_CORNER_BOTTOM_RIGHT] = GRAPHENE_SIZE_INIT (20, 0);
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rr.corner[GSK_CORNER_BOTTOM_LEFT] = GRAPHENE_SIZE_INIT (0, 0);
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builder = gsk_path_builder_new ();
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gsk_path_builder_add_rounded_rect (builder, &rr);
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path = gsk_path_builder_free_to_path (builder);
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contour = gsk_path_get_contour (path, 0);
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path1 = convert_to_standard_contour (path);
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contour1 = gsk_path_get_contour (path1, 0);
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builder = gsk_path_builder_new ();
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gsk_path_builder_add_reverse_path (builder, path);
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path2 = gsk_path_builder_free_to_path (builder);
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contour2 = gsk_path_get_contour (path2, 0);
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g_assert_true (gsk_contour_get_winding (contour, &GRAPHENE_POINT_INIT (150, 150)) == 1);
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g_assert_true (gsk_contour_get_winding (contour1, &GRAPHENE_POINT_INIT (150, 150)) == 1);
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g_assert_true (gsk_contour_get_winding (contour2, &GRAPHENE_POINT_INIT (150, 150)) == -1);
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gsk_path_unref (path2);
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gsk_path_unref (path1);
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}
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static void
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test_rect_roundtrip (void)
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{
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graphene_rect_t rect;
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GskPathBuilder *builder;
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GskPath *path, *path2;
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const GskContour *contour;
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char *s;
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rect = GRAPHENE_RECT_INIT (100, 100, 200, 150);
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builder = gsk_path_builder_new ();
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gsk_path_builder_add_rect (builder, &rect);
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path = gsk_path_builder_free_to_path (builder);
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contour = gsk_path_get_contour (path, 0);
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g_assert_cmpstr (gsk_contour_get_type_name (contour), ==, "GskRectContour");
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s = gsk_path_to_string (path);
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path2 = gsk_path_parse (s);
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contour = gsk_path_get_contour (path2, 0);
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g_assert_cmpstr (gsk_contour_get_type_name (contour), ==, "GskRectContour");
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g_free (s);
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gsk_path_unref (path2);
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gsk_path_unref (path);
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}
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static void
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test_rect_winding (void)
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{
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GskPathBuilder *builder;
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GskPath *path, *path1, *path2, *path3;
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const GskContour *contour, *contour1, *contour2, *contour3;
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builder = gsk_path_builder_new ();
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gsk_path_builder_add_rect (builder, &GRAPHENE_RECT_INIT (100, 100, 200, 150));
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path = gsk_path_builder_free_to_path (builder);
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contour = gsk_path_get_contour (path, 0);
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path1 = convert_to_standard_contour (path);
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contour1 = gsk_path_get_contour (path1, 0);
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builder = gsk_path_builder_new ();
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gsk_path_builder_add_reverse_path (builder, path);
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path2 = gsk_path_builder_free_to_path (builder);
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contour2 = gsk_path_get_contour (path2, 0);
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path3 = convert_to_standard_contour (path2);
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contour3 = gsk_path_get_contour (path3, 0);
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g_assert_true (gsk_contour_get_winding (contour, &GRAPHENE_POINT_INIT (150, 150)) == 1);
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g_assert_true (gsk_contour_get_winding (contour1, &GRAPHENE_POINT_INIT (150, 150)) == 1);
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g_assert_true (gsk_contour_get_winding (contour2, &GRAPHENE_POINT_INIT (150, 150)) == -1);
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g_assert_true (gsk_contour_get_winding (contour3, &GRAPHENE_POINT_INIT (150, 150)) == -1);
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gsk_path_unref (path3);
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gsk_path_unref (path2);
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gsk_path_unref (path1);
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}
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int
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main (int argc, char *argv[])
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{
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gtk_test_init (&argc, &argv, NULL);
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g_test_add_func ("/path/circle/roundtrip", test_circle_roundtrip);
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g_test_add_func ("/path/circle/winding", test_circle_winding);
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g_test_add_func ("/path/rounded-rect/roundtrip", test_rounded_rect_roundtrip);
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g_test_add_func ("/path/rounded-rect/winding", test_rounded_rect_winding);
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g_test_add_func ("/path/rect/roundtrip", test_rect_roundtrip);
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g_test_add_func ("/path/rect/winding", test_rect_winding);
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return g_test_run ();
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}
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