117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
//
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// fastiv.c: fast image viewer
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//
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// Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER 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 IN
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// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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#include <gtk/gtk.h>
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#include <glib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <locale.h>
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#include "config.h"
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#include "fastiv-view.h"
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// --- Utilities ---------------------------------------------------------------
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static void
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exit_fatal(const gchar *format, ...) G_GNUC_PRINTF(1, 2);
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static void
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exit_fatal(const gchar *format, ...)
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{
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va_list ap;
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va_start(ap, format);
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gchar *format_nl = g_strdup_printf("%s\n", format);
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vfprintf(stderr, format_nl, ap);
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free(format_nl);
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va_end(ap);
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exit(EXIT_FAILURE);
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}
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// --- Main --------------------------------------------------------------------
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struct {
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// TODO(p): Add some state variables.
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// - Directory filenames, index within the list.
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} g;
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int
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main(int argc, char *argv[])
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{
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if (!setlocale(LC_CTYPE, ""))
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exit_fatal("cannot set locale");
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gboolean show_version = FALSE;
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gchar **files = NULL;
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const GOptionEntry options[] = {
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{G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &files,
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NULL, "[FILE | DIRECTORY]..."},
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{"version", 'V', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
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&show_version, "output version information and exit", NULL},
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{},
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};
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GError *error = NULL;
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if (!gtk_init_with_args(&argc, &argv, " - fast image viewer",
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options, NULL, &error))
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exit_fatal("%s", error->message);
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if (show_version) {
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printf(PROJECT_NAME " " PROJECT_VERSION "\n");
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return 0;
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}
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gtk_window_set_default_icon_name(PROJECT_NAME);
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GtkWidget *view = g_object_new(FASTIV_TYPE_VIEW, NULL);
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GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
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gtk_container_add(GTK_CONTAINER(window), view);
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// TODO(p): Load directory entries, store in `g`.
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// - Only when there's just one filename.
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// - stat() it if it's a dictionary or a filename;
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// can just blindly try to readdir(), followed by dirname and retry
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// - But how do we filter these? We don't want to have non-images
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// on the list.
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// - When there are multiple, just take them verbatim as a list.
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// - Not entirely sure about how much sense this makes,
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// we might want to rather open several windows, or simply fork,
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// or even disallow this completely.
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gsize files_len = g_strv_length(files);
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if (files_len) {
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GDir *dir = NULL;
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if ((dir = g_dir_open(files[0], 0, NULL))) {
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const gchar *name = NULL;
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while ((name = g_dir_read_name(dir)))
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;
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g_dir_close(dir);
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}
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if (!fastiv_view_open(FASTIV_VIEW(view), files[0], &error))
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g_printerr("error: %s\n", error->message);
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else
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gtk_window_set_title(GTK_WINDOW(window), files[0]);
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}
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gtk_widget_show_all(window);
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gtk_main();
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return 0;
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}
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