234 lines
8 KiB
C
234 lines
8 KiB
C
/*
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* This file is part of wl-overlay: show overlays with images and text in Wayland
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* Copyright © 2022 Midgard
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <getopt.h>
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#include <wayland-client.h>
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#include "common.h"
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#include "wayland.h"
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#define DEFAULT_BORDER_RADIUS 15
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#define DEFAULT_PADDING 10
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#define DEFAULT_WIDTH 256
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#define DEFAULT_HEIGHT 256
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#define DEFAULT_FONT "Fira Sans 17"
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#define DEFAULT_BACKDROP_COLOR \
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((struct color_argb){0.85, 0x11 / 255.0, 0x11 / 255.0, 0x11 / 255.0})
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#define DEFAULT_TIME -1
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static bool
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color_argb_invalid(struct color_argb *a)
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{
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return !(
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(0.0 <= a->a) && (a->a <= 1.0) &&
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(0.0 <= a->r) && (a->r <= 1.0) &&
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(0.0 <= a->g) && (a->g <= 1.0) &&
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(0.0 <= a->b) && (a->b <= 1.0)
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);
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}
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static void
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parse_hex(char *hex, struct color_argb *result_color) {
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if (strlen(hex) != 4 * 2) {
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// Invalid
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result_color->a = -1.0;
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return;
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}
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int a, r, g, b;
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sscanf(hex, "%02x%02x%02x%02x", &a, &r, &g, &b);
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result_color->a = a / 255.0;
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result_color->r = r / 255.0;
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result_color->g = g / 255.0;
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result_color->b = b / 255.0;
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}
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static void
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print_usage()
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{
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fprintf(stderr, "wl-overlay: show overlays with images and text in Wayland\n"
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"Usage: wl-overlay [options...] <image.png> [text]\n\n"
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"image.png must be the path to a valid PNG image or may be the empty string for "
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"no image. text is the text to show.\n\n"
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"Options:\n"
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" -h --help Show this help text and exit\n"
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" --backdrop=<aarrggbb> Set backdrop colour (default d9111111, set to 00000000 to disable backdrop)\n"
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" --color=<aarrggbb> Set text colour (default ffffffff)\n"
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" --border-radius=<int> Give the backdrop rounded corners with specified radius (default %d)\n"
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" --font=<str> Set font of text (default ‘" DEFAULT_FONT "’)\n"
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" --width=<int> \n"
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" --height=<int> Set width and height (default %d×%d)\n"
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" --padding=<int> Set padding around image and text (default %d)\n"
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" --time=<int> Make overlay disappear after this amount of milliseconds, or -1 to never disappear (default %d)\n"
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"\n"
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"Copyright information:\n"
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" This software is © 2022 Midgard, released under GPLv3+\n"
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" Portions are © 2021 Drew DeVault\n"
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" Call wl-overlay --copyright for more information\n",
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DEFAULT_BORDER_RADIUS,
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DEFAULT_WIDTH, DEFAULT_HEIGHT,
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DEFAULT_PADDING,
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DEFAULT_TIME);
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}
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static void
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print_copyright()
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{
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fprintf(stderr, "wl-overlay: show overlays with images and text in Wayland\n"
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"Copyright © 2022 Midgard\n"
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"\n"
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"This program is free software: you can redistribute it and/or modify\n"
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"it under the terms of the GNU General Public License as published by\n"
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"the Free Software Foundation, either version 3 of the License, or\n"
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"(at your option) any later version.\n"
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"\n"
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"This program is distributed in the hope that it will be useful,\n"
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"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
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"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
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"GNU General Public License for more details.\n"
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"\n"
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"You should have received a copy of the GNU General Public License\n"
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"along with this program. If not, see <http://www.gnu.org/licenses/>.\n"
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"\n"
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"---\n"
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"\n"
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"This program uses example code from the Wayland Book (https://wayland-book.com/).\n"
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"This code was licensed to Midgard under the MIT license in an email:\n"
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"\n"
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"Copyright (c) 2021 Drew DeVault\n"
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"\n"
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"Permission is hereby granted, free of charge, to any person obtaining a copy\n"
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"of this software and associated documentation files (the \"Software\"), to deal\n"
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"in the Software without restriction, including without limitation the rights\n"
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"to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n"
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"copies of the Software, and to permit persons to whom the Software is\n"
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"furnished to do so, subject to the following conditions:\n"
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"\n"
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"The above copyright notice and this permission notice shall be included in all\n"
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"copies or substantial portions of the Software.\n"
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"\n"
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"THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n"
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"IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n"
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"FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n"
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"AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n"
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"LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n"
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"OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n"
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"SOFTWARE.\n");
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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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struct client_state state = { 0 };
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state.user_request.text_color = (struct color_argb){1.0, 1.0, 1.0, 1.0};
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state.user_request.border_radius = DEFAULT_BORDER_RADIUS;
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state.user_request.backdrop = DEFAULT_BACKDROP_COLOR;
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state.user_request.width = DEFAULT_WIDTH;
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state.user_request.height = DEFAULT_HEIGHT;
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state.user_request.padding = DEFAULT_PADDING;
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state.user_request.time = DEFAULT_TIME;
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int c;
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while (1) {
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int option_index = 0;
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static struct option long_options[] = {
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{"help", no_argument, 0, 'h'},
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{"copyright", no_argument, 0, 0 },
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{"backdrop", required_argument, 0, 0 },
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{"color", required_argument, 0, 0 },
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{"colour", required_argument, 0, 0 },
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{"border-radius", required_argument, 0, 0 },
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{"font", required_argument, 0, 0 },
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{"width", required_argument, 0, 0 },
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{"height", required_argument, 0, 0 },
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{"padding", required_argument, 0, 0 },
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{"time", required_argument, 0, 0 },
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{0, required_argument, 0, 0 }
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};
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c = getopt_long(argc, argv, "h", long_options, &option_index);
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if (c == -1)
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break;
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switch (c) {
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case 0:
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switch (option_index) {
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case 1: print_copyright(); exit(0); break;
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case 2: parse_hex(optarg, &state.user_request.backdrop); break;
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case 3: case 4: parse_hex(optarg, &state.user_request.text_color); break;
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case 5: state.user_request.border_radius = atoi(optarg); break;
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case 6: state.user_request.font = strdup(optarg); break;
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case 7: state.user_request.width = atoi(optarg); break;
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case 8: state.user_request.height = atoi(optarg); break;
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case 9: state.user_request.padding = atoi(optarg); break;
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case 10: state.user_request.time = atoi(optarg); break;
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default: break;
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}
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break;
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case 'h':
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print_usage();
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exit(0);
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break;
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default: break;
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}
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}
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if (optind < argc) {
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state.user_request.graphics_filename = strdup(argv[optind]);
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} else {
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print_usage();
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exit(1);
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}
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optind++;
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if (optind < argc) {
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state.user_request.text = strdup(argv[optind]);
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} else {
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state.user_request.text = NULL;
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}
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if (state.user_request.font == NULL) {
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state.user_request.font = strdup(DEFAULT_FONT);
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}
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if (color_argb_invalid(&state.user_request.backdrop)) {
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fprintf(stderr, "Invalid --backdrop color, must be hexadecimal aarrggbb\n");
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exit(1);
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}
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if (color_argb_invalid(&state.user_request.text_color)) {
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fprintf(stderr, "Invalid --font color, must be hexadecimal aarrggbb\n");
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exit(1);
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}
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wlo_wl_main(&state);
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free(state.user_request.graphics_filename);
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if (state.user_request.text != NULL) {
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free(state.user_request.text);
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}
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free(state.user_request.font);
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return 0;
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}
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