| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: xgetline.c,v 1.2 1998/11/18 21:25:30 mdw Exp $ |
| 4 | * |
| 5 | * Fetch a line of text from the user |
| 6 | * |
| 7 | * (c) 1998 Straylight/Edgeware |
| 8 | */ |
| 9 | |
| 10 | /*----- Licensing notice --------------------------------------------------* |
| 11 | * |
| 12 | * This file is part of the Edgeware X tools collection. |
| 13 | * |
| 14 | * X tools is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * X tools is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with X tools; if not, write to the Free Software Foundation, |
| 26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 27 | */ |
| 28 | |
| 29 | /*----- Revision history --------------------------------------------------* |
| 30 | * |
| 31 | * $Log: xgetline.c,v $ |
| 32 | * Revision 1.2 1998/11/18 21:25:30 mdw |
| 33 | * Remove bogus `-h' option from the options list. |
| 34 | * |
| 35 | * Revision 1.1 1998/11/16 23:00:49 mdw |
| 36 | * Initial versions. |
| 37 | * |
| 38 | */ |
| 39 | |
| 40 | /*----- Header files ------------------------------------------------------*/ |
| 41 | |
| 42 | #include <stdio.h> |
| 43 | #include <stdlib.h> |
| 44 | #include <string.h> |
| 45 | |
| 46 | #include <gtk/gtk.h> |
| 47 | #include <gdk/gdkkeysyms.h> |
| 48 | |
| 49 | #include "mdwopt.h" |
| 50 | |
| 51 | /*----- Main code ---------------------------------------------------------*/ |
| 52 | |
| 53 | /* --- @cancel@ --- * |
| 54 | * |
| 55 | * Arguments: @GtkWidget *w@ = widget raising the signal |
| 56 | * @gpointer *p@ = pointer to integer result code |
| 57 | * |
| 58 | * Returns: --- |
| 59 | * |
| 60 | * Use: Sets the result code to zero (failure) and ends the loop. |
| 61 | */ |
| 62 | |
| 63 | static void cancel(GtkWidget *w, gpointer *p) |
| 64 | { |
| 65 | int *ip = (int *)p; |
| 66 | *ip = 0; |
| 67 | gtk_main_quit(); |
| 68 | } |
| 69 | |
| 70 | /* --- @done@ --- * |
| 71 | * |
| 72 | * Arguments: @GtkWidget *w@ = widget raising the signal |
| 73 | * @gpointer *p@ = pointer to integer result code |
| 74 | * |
| 75 | * Returns: --- |
| 76 | * |
| 77 | * Use: Sets the result code nonzero (success) and ends the loop. |
| 78 | */ |
| 79 | |
| 80 | static void done(GtkWidget *w, gpointer *p) |
| 81 | { |
| 82 | int *ip = (int *)p; |
| 83 | *ip = 1; |
| 84 | gtk_main_quit(); |
| 85 | } |
| 86 | |
| 87 | /* --- @check_escape@ --- * |
| 88 | * |
| 89 | * Arguments: @GtkWidget *w@ = widget raising the signal |
| 90 | * @GdkEventKey *ev@ = pointer to event data |
| 91 | * @gpointer *p@ = widget to activate in response |
| 92 | * |
| 93 | * Returns: --- |
| 94 | * |
| 95 | * Use: Activates a widget when an escape keypress is detected. |
| 96 | */ |
| 97 | |
| 98 | static gboolean check_escape(GtkWidget *w, GdkEventKey *ev, gpointer *p) |
| 99 | { |
| 100 | if (ev->keyval == GDK_Escape) { |
| 101 | if (p) |
| 102 | gtk_widget_activate(GTK_WIDGET(p)); |
| 103 | else |
| 104 | gtk_object_destroy(GTK_OBJECT(w)); |
| 105 | return (1); |
| 106 | } |
| 107 | return (0); |
| 108 | } |
| 109 | |
| 110 | /* --- @main@ --- * |
| 111 | * |
| 112 | * Arguments: @int argc@ = number of command line arguments |
| 113 | * @char *argv[]@ = addresses of arguments |
| 114 | * |
| 115 | * Returns: Zero if OK, and we read a string; nonzero if the user |
| 116 | * cancelled. |
| 117 | * |
| 118 | * Use: Reads a string from the user, and returns it on standard |
| 119 | * output. |
| 120 | */ |
| 121 | |
| 122 | int main(int argc, char *argv[]) |
| 123 | { |
| 124 | /* --- Configuration variables --- */ |
| 125 | |
| 126 | char *prompt = 0; |
| 127 | char *dfl = ""; |
| 128 | char *title = "Input request"; |
| 129 | int left; |
| 130 | unsigned f = 0; |
| 131 | int ok = 0; |
| 132 | |
| 133 | enum { |
| 134 | f_invis = 1, |
| 135 | f_duff = 2 |
| 136 | }; |
| 137 | |
| 138 | /* --- User interface bits --- */ |
| 139 | |
| 140 | GtkWidget *win; |
| 141 | GtkWidget *box; |
| 142 | GtkWidget *entry; |
| 143 | GtkWidget *btn; |
| 144 | |
| 145 | /* --- Crank up the toolkit --- * |
| 146 | * |
| 147 | * Have to do this here: GTK snarfs some command line options which my |
| 148 | * parser would barf about. |
| 149 | */ |
| 150 | |
| 151 | gtk_init(&argc, &argv); |
| 152 | |
| 153 | /* --- Parse options from command line --- */ |
| 154 | |
| 155 | for (;;) { |
| 156 | |
| 157 | /* --- Long options structure --- */ |
| 158 | |
| 159 | static struct option opt[] = { |
| 160 | { "help", 0, 0, 'h' }, |
| 161 | { "title", required_argument, 0, 't' }, |
| 162 | { "prompt", required_argument, 0, 'p' }, |
| 163 | { "default", required_argument, 0, 'd' }, |
| 164 | { "password", 0, 0, 'i' }, |
| 165 | { "invisible", 0, 0, 'i' }, |
| 166 | { 0, 0, 0, 0 } |
| 167 | }; |
| 168 | int i; |
| 169 | |
| 170 | /* --- Fetch an option --- */ |
| 171 | |
| 172 | i = getopt_long(argc, argv, "t:p:d:i", opt, 0); |
| 173 | if (i < 0) |
| 174 | break; |
| 175 | |
| 176 | /* --- Work out what to do with it --- */ |
| 177 | |
| 178 | switch (i) { |
| 179 | case 't': |
| 180 | title = optarg; |
| 181 | break; |
| 182 | case 'p': |
| 183 | prompt = optarg; |
| 184 | break; |
| 185 | case 'd': |
| 186 | dfl = optarg; |
| 187 | break; |
| 188 | case 'i': |
| 189 | f |= f_invis; |
| 190 | break; |
| 191 | default: |
| 192 | f |= f_duff; |
| 193 | break; |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | if (f & f_duff) { |
| 198 | fprintf(stderr, "xgetline: bad arguments\n"); |
| 199 | exit(EXIT_FAILURE); |
| 200 | } |
| 201 | |
| 202 | /* --- Create the main window --- */ |
| 203 | |
| 204 | win = gtk_window_new(GTK_WINDOW_TOPLEVEL); |
| 205 | gtk_window_set_title(GTK_WINDOW(win), title); |
| 206 | gtk_window_position(GTK_WINDOW(win), GTK_WIN_POS_MOUSE); |
| 207 | gtk_signal_connect(GTK_OBJECT(win), "destroy", |
| 208 | GTK_SIGNAL_FUNC(cancel), &ok); |
| 209 | |
| 210 | /* --- Create the box for laying out the widgets inside --- */ |
| 211 | |
| 212 | left = (prompt ? 1 : 0); |
| 213 | box = gtk_table_new(left + 2, 1, 0); |
| 214 | |
| 215 | /* --- Maybe create a prompt widget --- */ |
| 216 | |
| 217 | if (prompt) { |
| 218 | GtkWidget *w = gtk_label_new(prompt); |
| 219 | gtk_table_attach(GTK_TABLE(box), w, |
| 220 | 0, 1, 0, 1, 0, GTK_EXPAND, 4, 2); |
| 221 | gtk_widget_show(w); |
| 222 | } |
| 223 | |
| 224 | /* --- Create the entry widget --- */ |
| 225 | |
| 226 | entry = gtk_entry_new(); |
| 227 | gtk_entry_set_text(GTK_ENTRY(entry), dfl); |
| 228 | gtk_table_attach(GTK_TABLE(box), entry, |
| 229 | left, left + 1, 0, 1, |
| 230 | GTK_EXPAND | GTK_FILL, GTK_EXPAND, 4, 2); |
| 231 | if (f & f_invis) |
| 232 | gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE); |
| 233 | gtk_widget_show(entry); |
| 234 | |
| 235 | /* --- Create the default action widget --- */ |
| 236 | |
| 237 | btn = gtk_button_new_with_label("OK"); |
| 238 | gtk_table_attach(GTK_TABLE(box), btn, |
| 239 | left + 1, left + 2, 0, 1, 0, GTK_EXPAND, 2, 2); |
| 240 | GTK_WIDGET_SET_FLAGS(btn, GTK_CAN_DEFAULT); |
| 241 | gtk_widget_show(btn); |
| 242 | |
| 243 | /* --- Add the box into the main window --- */ |
| 244 | |
| 245 | gtk_container_add(GTK_CONTAINER(win), box); |
| 246 | gtk_widget_show(box); |
| 247 | |
| 248 | /* --- Last minute configuration things --- */ |
| 249 | |
| 250 | gtk_widget_grab_default(btn); |
| 251 | gtk_signal_connect(GTK_OBJECT(btn), "clicked", |
| 252 | GTK_SIGNAL_FUNC(done), &ok); |
| 253 | gtk_signal_connect_object(GTK_OBJECT(entry), "activate", |
| 254 | GTK_SIGNAL_FUNC(gtk_widget_activate), |
| 255 | GTK_OBJECT(btn)); |
| 256 | gtk_signal_connect(GTK_OBJECT(win), "key_press_event", |
| 257 | GTK_SIGNAL_FUNC(check_escape), 0); |
| 258 | |
| 259 | /* --- Go go go --- */ |
| 260 | |
| 261 | gtk_widget_show(win); |
| 262 | gtk_main(); |
| 263 | |
| 264 | /* --- Output the result --- */ |
| 265 | |
| 266 | if (ok) { |
| 267 | char *p = gtk_entry_get_text(GTK_ENTRY(entry)); |
| 268 | puts(p); |
| 269 | } |
| 270 | |
| 271 | return (ok ? EXIT_SUCCESS : EXIT_FAILURE); |
| 272 | } |
| 273 | |
| 274 | /*----- That's all, folks -------------------------------------------------*/ |