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 */
28 /*
29 * A tiny PDF viewer.
30 */
32 #if HAVE_CONFIG_H
33 # include "config.h"
34 #endif /* HAVE_CONFIG_H */
36 #include "tpdfv.h"
37 #include "tpdfv_features.h"
39 #include "gtk-tpdfv.h"
40 #include "tpdfv-ctl.h"
42 #if HAVE_LIBGEN_H
43 # include <libgen.h>
44 #else /* HAVE_LIBGEN_H */
45 # define basename(path) (path)
46 #endif /* ! HAVE_LIBGEN_H */
48 #include <assert.h>
50 #include <stdio.h>
51 #include <stdlib.h>
53 #include <string.h>
55 #include <unistd.h>
57 #include <gtk/gtk.h>
58 #include <gdk/gdkkeysyms.h>
60 /*
61 * Global variables.
62 */
63 static gtk_tpdfv_screens_t *screens = NULL;
65 static void
66 exit_usage(char *name, int status)
67 {
68 printf(
69 "Usage: %s [<options>] <filename>\n"
71 "\nA tiny PDF viewer.\n"
73 "\nOptions:\n"
74 " -P enable presentation mode\n"
75 "\n"
76 " -h display this help and exit\n"
77 " -V display the version number and copyright\n"
79 "\ntpdfview "TPDFV_VERSION_STRING TPDFV_VERSION_EXTRA", "PACKAGE_URL"\n"
80 "Copyright (C) 2011 "PACKAGE_MAINTAINER"\n",
81 basename(name));
82 exit(status);
83 } /* exit_usage */
85 static void
86 exit_version(void)
87 {
88 printf("tpdfview version "TPDFV_VERSION_STRING TPDFV_VERSION_EXTRA", "
89 "built "BUILD_DATE"\n"
90 "Copyright (C) 2011 "PACKAGE_MAINTAINER"\n"
92 "\nThis is free software under the terms of the BSD license, see "
93 "the source for\ncopying conditions. There is NO WARRANTY; not "
94 "even for MERCHANTABILITY or\nFITNESS FOR A PARTICULAR "
95 "PURPOSE.\n");
96 exit(0);
97 } /* exit_version */
99 static void
100 toggle_fullscreen(GtkWindow *win)
101 {
102 GdkWindowState state;
104 if (! gtk_widget_get_realized(GTK_WIDGET(win)))
105 return;
107 state = gdk_window_get_state(GTK_WIDGET(win)->window);
109 if (state & GDK_WINDOW_STATE_FULLSCREEN)
110 gtk_window_unfullscreen(win);
111 else
112 gtk_window_fullscreen(win);
113 } /* toggle_fullscreen */
115 static void
116 on_destroy(GtkWidget __attribute__((unused)) *widget,
117 gpointer __attribute__((unused)) data)
118 {
119 gtk_main_quit();
120 } /* on_destroy */
122 static gboolean
123 key_press(GtkWidget *window, GdkEventKey *event, gpointer data)
124 {
125 GObject *obj;
127 obj = G_OBJECT(data);
128 assert(obj);
130 switch (event->keyval) {
131 case GDK_q:
132 gtk_main_quit();
133 break;
135 case GDK_r:
136 tpdfv_ctl_reload(obj);
137 break;
139 case GDK_F:
140 toggle_fullscreen(GTK_WINDOW(window));
141 break;
143 /* navigation */
144 case GDK_Page_Up:
145 tpdfv_ctl_page_up(obj);
146 break;
147 case GDK_Page_Down:
148 /* fall through */
149 case GDK_space:
150 tpdfv_ctl_page_down(obj);
151 break;
152 case GDK_Home:
153 tpdfv_ctl_first_page(obj);
154 break;
155 case GDK_End:
156 tpdfv_ctl_last_page(obj);
157 break;
159 /* zoom */
160 case GDK_plus:
161 tpdfv_ctl_zoom_in(obj);
162 break;
163 case GDK_minus:
164 tpdfv_ctl_zoom_out(obj);
165 break;
166 case GDK_1:
167 tpdfv_ctl_zoom_1(obj);
168 break;
169 case GDK_w:
170 tpdfv_ctl_zoom_width(obj);
171 break;
172 case GDK_h:
173 tpdfv_ctl_zoom_height(obj);
174 break;
175 case GDK_z:
176 tpdfv_ctl_zoom_fit(obj);
177 break;
179 /* scrolling */
180 case GDK_Up:
181 tpdfv_ctl_scroll_up(obj);
182 break;
183 case GDK_Down:
184 tpdfv_ctl_scroll_down(obj);
185 break;
186 case GDK_Left:
187 tpdfv_ctl_scroll_left(obj);
188 break;
189 case GDK_Right:
190 tpdfv_ctl_scroll_right(obj);
191 break;
193 /* screen management */
194 case GDK_M:
195 {
196 gint n_screens = gtk_tpdfv_screens_number(screens);
197 gint screen = gtk_tpdfv_screens_window_get(screens,
198 GTK_WINDOW(window));
200 gtk_tpdfv_screens_window_set(screens,
201 GTK_WINDOW(window), (screen + 1) % n_screens);
202 }
203 break;
204 }
205 return FALSE;
206 } /* key_press */
208 int
209 main(int argc, char **argv)
210 {
211 GtkWidget *win;
212 GtkWidget *tpdfv;
214 GObject *ctl;
216 char win_title[1024];
218 _Bool presentation_mode = 0;
220 GdkColor bg_color;
222 char *filename;
224 gtk_init(&argc, &argv);
226 while (42) {
227 int opt = getopt(argc, argv, "PhV");
229 if (-1 == opt)
230 break;
232 switch (opt) {
233 case 'P':
234 presentation_mode = 1;
235 break;
237 case 'h':
238 exit_usage(argv[0], 0);
239 break;
240 case 'V':
241 exit_version();
242 break;
243 default:
244 exit_usage(argv[0], 1);
245 }
246 }
248 if (argc - optind != 1) {
249 fprintf(stderr, "%s: missing filename\n", argv[0]);
250 exit_usage(argv[0], 1);
251 }
253 filename = argv[optind];
255 tpdfv = gtk_tpdfv_new(filename);
256 if (! tpdfv)
257 return 1;
259 win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
260 if (! win)
261 return 1;
263 screens = gtk_tpdfv_screens_init(/* display = */ NULL);
264 if (! screens)
265 return 1;
267 snprintf(win_title, sizeof(win_title), "tpdfview: %s",
268 basename(filename));
269 gtk_window_set_title(GTK_WINDOW(win), win_title);
271 gtk_container_add(GTK_CONTAINER(win), tpdfv);
273 ctl = tpdfv_ctl_new(GTK_TPDFV(tpdfv));
274 if (! ctl)
275 return 1;
277 /* TODO: use resource file */
278 gdk_color_parse("#000000", &bg_color);
280 if (presentation_mode) {
281 GtkWidget *pres_win;
282 GtkWidget *paned;
283 GtkWidget *tpdfv1, *tpdfv2;
285 tpdfv1 = gtk_tpdfv_new(filename);
286 if (! tpdfv1)
287 return 1;
289 if (! tpdfv_ctl_add_slave(ctl, GTK_TPDFV(tpdfv1),
290 /* factor = */ 1, /* offset = */ 0))
291 return 1;
293 tpdfv2 = gtk_tpdfv_new(filename);
294 if (! tpdfv2)
295 return 1;
297 if (! tpdfv_ctl_add_slave(ctl, GTK_TPDFV(tpdfv2),
298 /* factor = */ 1, /* offset = */ 1))
299 return 1;
301 paned = gtk_hpaned_new();
302 if (! paned)
303 return 1;
305 gtk_paned_pack1(GTK_PANED(paned), tpdfv1, TRUE, TRUE);
306 gtk_paned_pack2(GTK_PANED(paned), tpdfv2, TRUE, TRUE);
308 gtk_tpdfv_zoom_fit(tpdfv1);
309 gtk_tpdfv_zoom_fit(tpdfv2);
311 pres_win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
312 if (! pres_win)
313 return 1;
315 gtk_window_set_title(GTK_WINDOW(pres_win), win_title);
317 gtk_container_add(GTK_CONTAINER(pres_win), paned);
319 gtk_widget_modify_bg(tpdfv1, GTK_STATE_NORMAL, &bg_color);
320 gtk_widget_modify_bg(tpdfv2, GTK_STATE_NORMAL, &bg_color);
322 g_signal_connect(G_OBJECT(pres_win), "destroy",
323 G_CALLBACK(on_destroy), NULL);
324 g_signal_connect(G_OBJECT(pres_win), "key-press-event",
325 G_CALLBACK(key_press), ctl);
327 gtk_widget_modify_bg(pres_win, GTK_STATE_NORMAL, &bg_color);
328 gtk_widget_modify_bg(tpdfv1, GTK_STATE_NORMAL, &bg_color);
329 gtk_widget_modify_bg(tpdfv2, GTK_STATE_NORMAL, &bg_color);
331 gtk_widget_show_all(pres_win);
332 }
334 g_signal_connect(G_OBJECT(win), "destroy",
335 G_CALLBACK(on_destroy), NULL);
336 g_signal_connect(G_OBJECT(win), "key-press-event",
337 G_CALLBACK(key_press), ctl);
339 gtk_widget_modify_bg(tpdfv, GTK_STATE_NORMAL, &bg_color);
341 gtk_widget_show_all(win);
343 gtk_main();
345 gtk_tpdfv_screens_destroy(screens);
346 return 0;
347 } /* main */
349 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */