src/tpdfview.c

   1 /*
   2  * tpdfview - src/tpdfview.c
   3  * Copyright (C) 2011 Sebastian 'tokkee' Harl <sh@tokkee.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  17  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  18  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
  19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 /*
  29  * A tiny PDF viewer.
  30  */
  31
  32 #if HAVE_CONFIG_H
  33 #       include "config.h"
  34 #endif /* HAVE_CONFIG_H */
  35
  36 #include "tpdfv.h"
  37 #include "tpdfv_features.h"
  38
  39 #include "gtk-tpdfv.h"
  40
  41 #if HAVE_LIBGEN_H
  42 #       include <libgen.h>
  43 #else /* HAVE_LIBGEN_H */
  44 #       define basename(path) (path)
  45 #endif /* ! HAVE_LIBGEN_H */
  46
  47 #include <assert.h>
  48
  49 #include <stdio.h>
  50 #include <stdlib.h>
  51
  52 #include <string.h>
  53
  54 #include <unistd.h>
  55
  56 #include <gtk/gtk.h>
  57 #include <gdk/gdkkeysyms.h>
  58
  59 static void
  60 exit_usage(char *name, int status)
  61 {
  62         printf(
  63 "Usage: %s [<options>] <filename>\n"
  64
  65 "\nA tiny PDF viewer.\n"
  66
  67 "\nOptions:\n"
  68 "  -h    display this help and exit\n"
  69 "  -V    display the version number and copyright\n"
  70
  71 "\ntpdfview "TPDFV_VERSION_STRING TPDFV_VERSION_EXTRA", "PACKAGE_URL"\n"
  72 "Copyright (C) 2011 "PACKAGE_MAINTAINER"\n",
  73 basename(name));
  74         exit(status);
  75 } /* exit_usage */
  76
  77 static void
  78 exit_version(void)
  79 {
  80         printf("tpdfview version "TPDFV_VERSION_STRING TPDFV_VERSION_EXTRA", "
  81                         "built "BUILD_DATE"\n"
  82                         "Copyright (C) 2011 "PACKAGE_MAINTAINER"\n"
  83
  84                         "\nThis is free software under the terms of the BSD license, see "
  85                         "the source for\ncopying conditions. There is NO WARRANTY; not "
  86                         "even for MERCHANTABILITY or\nFITNESS FOR A PARTICULAR "
  87                         "PURPOSE.\n");
  88         exit(0);
  89 } /* exit_version */
  90
  91 static void
  92 on_destroy(GtkWidget __attribute__((unused)) *widget,
  93                 gpointer __attribute__((unused)) data)
  94 {
  95         gtk_main_quit();
  96 } /* on_destroy */
  97
  98 static gboolean
  99 key_press(GtkWidget __attribute__((unused)) *widget,
 100                 GdkEventKey *event, gpointer data)
 101 {
 102         GtkWidget *tpdfv;
 103
 104         tpdfv = (GtkWidget *)data;
 105         assert(tpdfv);
 106
 107         switch (event->keyval) {
 108                 case GDK_q:
 109                         gtk_main_quit();
 110                         break;
 111
 112                 /* navigation */
 113                 case GDK_Page_Up:
 114                         gtk_tpdfv_page_up(tpdfv);
 115                         break;
 116                 case GDK_Page_Down:
 117                         /* fall through */
 118                 case GDK_space:
 119                         gtk_tpdfv_page_down(tpdfv);
 120                         break;
 121                 case GDK_Home:
 122                         gtk_tpdfv_first_page(tpdfv);
 123                         break;
 124                 case GDK_End:
 125                         gtk_tpdfv_last_page(tpdfv);
 126                         break;
 127
 128                 /* zoom */
 129                 case GDK_plus:
 130                         gtk_tpdfv_zoom_in(tpdfv);
 131                         break;
 132                 case GDK_minus:
 133                         gtk_tpdfv_zoom_out(tpdfv);
 134                         break;
 135                 case GDK_1:
 136                         gtk_tpdfv_zoom_1(tpdfv);
 137                         break;
 138                 case GDK_w:
 139                         gtk_tpdfv_zoom_width(tpdfv);
 140                         break;
 141                 case GDK_h:
 142                         gtk_tpdfv_zoom_height(tpdfv);
 143                         break;
 144                 case GDK_z:
 145                         gtk_tpdfv_zoom_fit(tpdfv);
 146                         break;
 147
 148                 /* scrolling */
 149                 case GDK_Up:
 150                         gtk_tpdfv_scroll_up(tpdfv);
 151                         break;
 152                 case GDK_Down:
 153                         gtk_tpdfv_scroll_down(tpdfv);
 154                         break;
 155                 case GDK_Left:
 156                         gtk_tpdfv_scroll_left(tpdfv);
 157                         break;
 158                 case GDK_Right:
 159                         gtk_tpdfv_scroll_right(tpdfv);
 160                         break;
 161         }
 162         return FALSE;
 163 } /* key_press */
 164
 165 int
 166 main(int argc, char **argv)
 167 {
 168         GtkWidget *win   = NULL;
 169         GtkWidget *tpdfv = NULL;
 170
 171         char win_title[1024];
 172
 173         GdkColor bg_color;
 174
 175         char *filename;
 176
 177         gtk_init(&argc, &argv);
 178
 179         while (42) {
 180                 int opt = getopt(argc, argv, "hV");
 181
 182                 if (-1 == opt)
 183                         break;
 184
 185                 switch (opt) {
 186                         case 'h':
 187                                 exit_usage(argv[0], 0);
 188                                 break;
 189                         case 'V':
 190                                 exit_version();
 191                                 break;
 192                         default:
 193                                 exit_usage(argv[0], 1);
 194                 }
 195         }
 196
 197         if (argc - optind != 1) {
 198                 fprintf(stderr, "%s: missing filename\n", argv[0]);
 199                 exit_usage(argv[0], 1);
 200         }
 201
 202         filename = argv[optind];
 203
 204         tpdfv = gtk_tpdfv_new(filename);
 205         if (! tpdfv)
 206                 return 1;
 207
 208         win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 209         if (! win)
 210                 return 1;
 211
 212         snprintf(win_title, sizeof(win_title), "tpdfview: %s",
 213                         basename(filename));
 214         gtk_window_set_title(GTK_WINDOW(win), win_title);
 215
 216         gtk_container_add(GTK_CONTAINER(win), tpdfv);
 217
 218         g_signal_connect(G_OBJECT(win), "destroy",
 219                         G_CALLBACK(on_destroy), NULL);
 220         g_signal_connect(G_OBJECT(win), "key-press-event",
 221                         G_CALLBACK(key_press), tpdfv);
 222
 223         /* TODO: use resource file */
 224         gdk_color_parse("#000000", &bg_color);
 225         gtk_widget_modify_bg(tpdfv, GTK_STATE_NORMAL, &bg_color);
 226
 227         gtk_widget_show_all(win);
 228
 229         gtk_main();
 230         return 0;
 231 } /* main */
 232
 233 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */
 234