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 toggle_fullscreen(GtkWindow *win)
  93 {
  94         GdkWindowState state;
  95
  96         if (! gtk_widget_get_realized(GTK_WIDGET(win)))
  97                 return;
  98
  99         state = gdk_window_get_state(GTK_WIDGET(win)->window);
 100
 101         if (state & GDK_WINDOW_STATE_FULLSCREEN)
 102                 gtk_window_unfullscreen(win);
 103         else
 104                 gtk_window_fullscreen(win);
 105 } /* toggle_fullscreen */
 106
 107 static void
 108 on_destroy(GtkWidget __attribute__((unused)) *widget,
 109                 gpointer __attribute__((unused)) data)
 110 {
 111         gtk_main_quit();
 112 } /* on_destroy */
 113
 114 static gboolean
 115 key_press(GtkWidget *window, GdkEventKey *event, gpointer data)
 116 {
 117         GtkWidget *tpdfv;
 118
 119         tpdfv = (GtkWidget *)data;
 120         assert(tpdfv);
 121
 122         switch (event->keyval) {
 123                 case GDK_q:
 124                         gtk_main_quit();
 125                         break;
 126
 127                 case GDK_r:
 128                         gtk_tpdfv_reload(tpdfv);
 129                         break;
 130
 131                 case GDK_F:
 132                         toggle_fullscreen(GTK_WINDOW(window));
 133                         break;
 134
 135                 /* navigation */
 136                 case GDK_Page_Up:
 137                         gtk_tpdfv_page_up(tpdfv);
 138                         break;
 139                 case GDK_Page_Down:
 140                         /* fall through */
 141                 case GDK_space:
 142                         gtk_tpdfv_page_down(tpdfv);
 143                         break;
 144                 case GDK_Home:
 145                         gtk_tpdfv_first_page(tpdfv);
 146                         break;
 147                 case GDK_End:
 148                         gtk_tpdfv_last_page(tpdfv);
 149                         break;
 150
 151                 /* zoom */
 152                 case GDK_plus:
 153                         gtk_tpdfv_zoom_in(tpdfv);
 154                         break;
 155                 case GDK_minus:
 156                         gtk_tpdfv_zoom_out(tpdfv);
 157                         break;
 158                 case GDK_1:
 159                         gtk_tpdfv_zoom_1(tpdfv);
 160                         break;
 161                 case GDK_w:
 162                         gtk_tpdfv_zoom_width(tpdfv);
 163                         break;
 164                 case GDK_h:
 165                         gtk_tpdfv_zoom_height(tpdfv);
 166                         break;
 167                 case GDK_z:
 168                         gtk_tpdfv_zoom_fit(tpdfv);
 169                         break;
 170
 171                 /* scrolling */
 172                 case GDK_Up:
 173                         gtk_tpdfv_scroll_up(tpdfv);
 174                         break;
 175                 case GDK_Down:
 176                         gtk_tpdfv_scroll_down(tpdfv);
 177                         break;
 178                 case GDK_Left:
 179                         gtk_tpdfv_scroll_left(tpdfv);
 180                         break;
 181                 case GDK_Right:
 182                         gtk_tpdfv_scroll_right(tpdfv);
 183                         break;
 184         }
 185         return FALSE;
 186 } /* key_press */
 187
 188 int
 189 main(int argc, char **argv)
 190 {
 191         gtk_tpdfv_screens_t *screens;
 192
 193         GtkWidget *win   = NULL;
 194         GtkWidget *tpdfv = NULL;
 195
 196         char win_title[1024];
 197
 198         GdkColor bg_color;
 199
 200         char *filename;
 201
 202         gtk_init(&argc, &argv);
 203
 204         while (42) {
 205                 int opt = getopt(argc, argv, "hV");
 206
 207                 if (-1 == opt)
 208                         break;
 209
 210                 switch (opt) {
 211                         case 'h':
 212                                 exit_usage(argv[0], 0);
 213                                 break;
 214                         case 'V':
 215                                 exit_version();
 216                                 break;
 217                         default:
 218                                 exit_usage(argv[0], 1);
 219                 }
 220         }
 221
 222         if (argc - optind != 1) {
 223                 fprintf(stderr, "%s: missing filename\n", argv[0]);
 224                 exit_usage(argv[0], 1);
 225         }
 226
 227         filename = argv[optind];
 228
 229         tpdfv = gtk_tpdfv_new(filename);
 230         if (! tpdfv)
 231                 return 1;
 232
 233         win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 234         if (! win)
 235                 return 1;
 236
 237         screens = gtk_tpdfv_screens_init(/* display = */ NULL);
 238         if (! screens)
 239                 return 1;
 240
 241         snprintf(win_title, sizeof(win_title), "tpdfview: %s",
 242                         basename(filename));
 243         gtk_window_set_title(GTK_WINDOW(win), win_title);
 244
 245         gtk_container_add(GTK_CONTAINER(win), tpdfv);
 246
 247         g_signal_connect(G_OBJECT(win), "destroy",
 248                         G_CALLBACK(on_destroy), NULL);
 249         g_signal_connect(G_OBJECT(win), "key-press-event",
 250                         G_CALLBACK(key_press), tpdfv);
 251
 252         /* TODO: use resource file */
 253         gdk_color_parse("#000000", &bg_color);
 254         gtk_widget_modify_bg(tpdfv, GTK_STATE_NORMAL, &bg_color);
 255
 256         gtk_widget_show_all(win);
 257
 258         gtk_main();
 259
 260         gtk_tpdfv_screens_destroy(screens);
 261         return 0;
 262 } /* main */
 263
 264 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */
 265