135 lines
3.9 KiB
C
135 lines
3.9 KiB
C
/* Copyright 2023 Red Hat, Inc.
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*
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* GTK+ is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* GLib 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 GTK+; see the file COPYING. If not,
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* see <http://www.gnu.org/licenses/>.
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*
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* Author: Matthias Clasen
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "gtk-path-tool.h"
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#include <glib/gi18n-lib.h>
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void
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do_stroke (int *argc, const char ***argv)
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{
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GError *error = NULL;
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double line_width = 1;
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const char *cap = "butt";
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const char *join = "miter";
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double miter_limit = 4;
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const char *dashes = NULL;
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double dash_offset = 0;
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char **args = NULL;
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GOptionContext *context;
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GOptionEntry entries[] = {
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{ "line-width", 0, 0, G_OPTION_ARG_DOUBLE, &line_width, N_("Line width (number)"), N_("VALUE") },
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{ "line-cap", 0, 0, G_OPTION_ARG_STRING, &cap, N_("Line cap (butt, round, square)"), N_("VALUE") },
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{ "line-join", 0, 0, G_OPTION_ARG_STRING, &join, N_("Line join (miter, miter-clip, round, bevel, arcs)"), N_("VALUE") },
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{ "miter-limit", 0, 0, G_OPTION_ARG_DOUBLE, &miter_limit, N_("Miter limit (number)"), N_("VALUE") },
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{ "dashes", 0, 0, G_OPTION_ARG_STRING, &dashes, N_("Dash pattern (comma-separated numbers)"), N_("VALUE") },
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{ "dash-offset", 0, 0, G_OPTION_ARG_DOUBLE, &dash_offset, N_("Dash offset (number)"), N_("VALUE") },
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{ G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &args, NULL, N_("PATH") },
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{ NULL, },
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};
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GskPath *path, *result;
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GskLineCap line_cap;
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GskLineJoin line_join;
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GskStroke *stroke;
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g_set_prgname ("gtk4-path-tool stroke");
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context = g_option_context_new (NULL);
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g_option_context_set_translation_domain (context, GETTEXT_PACKAGE);
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g_option_context_add_main_entries (context, entries, NULL);
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g_option_context_set_summary (context, _("Stroke a path."));
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if (!g_option_context_parse (context, argc, (char ***)argv, &error))
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{
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g_printerr ("%s\n", error->message);
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g_error_free (error);
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exit (1);
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}
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g_option_context_free (context);
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if (args == NULL)
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{
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g_printerr (_("No paths given.\n"));
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exit (1);
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}
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path = get_path (args[0]);
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line_cap = get_enum_value (GSK_TYPE_LINE_CAP, _("line cap"), cap);
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line_join = get_enum_value (GSK_TYPE_LINE_JOIN, _("line join"), join);
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stroke = gsk_stroke_new (line_width);
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gsk_stroke_set_line_cap (stroke, line_cap);
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gsk_stroke_set_line_join (stroke, line_join);
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gsk_stroke_set_miter_limit (stroke, miter_limit);
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if (dashes != NULL)
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{
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GArray *d = g_array_new (FALSE, FALSE, sizeof (float));
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char **strings;
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strings = g_strsplit (dashes, ",", 0);
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for (unsigned int i = 0; strings[i]; i++)
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{
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char *end = NULL;
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float f;
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f = (float) g_ascii_strtod (strings[i], &end);
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if (*end != '\0')
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{
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char *msg = g_strdup_printf (_("Failed to parse '%s' as number"), strings[i]);
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g_printerr ("%s\n", msg);
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exit (1);
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}
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g_array_append_val (d, f);
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}
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g_strfreev (strings);
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gsk_stroke_set_dash (stroke, (const float *)d->data, d->len);
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g_array_unref (d);
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}
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gsk_stroke_set_dash_offset (stroke, dash_offset);
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result = gsk_path_stroke (path, stroke);
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gsk_stroke_free (stroke);
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if (result)
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{
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char *str = gsk_path_to_string (result);
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g_print ("%s\n", str);
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g_free (str);
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}
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else
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{
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g_printerr ("%s\n", _("That didn't work out."));
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exit (1);
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}
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}
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