2011-01-17 13:57:59 +00:00
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/* sxiv: main.c
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* Copyright (c) 2011 Bert Muennich <muennich at informatik.hu-berlin.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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2011-01-17 15:41:50 +00:00
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#include <stdlib.h>
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2011-01-20 15:24:48 +00:00
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#include <stdio.h>
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2011-01-22 22:27:29 +00:00
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#include <sys/select.h>
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2011-01-17 15:41:50 +00:00
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2011-01-19 13:07:45 +00:00
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#include <X11/Xlib.h>
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2011-01-21 09:30:10 +00:00
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#include <X11/Xutil.h>
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2011-01-19 13:07:45 +00:00
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#include <X11/keysym.h>
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2011-01-17 13:57:59 +00:00
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#include "sxiv.h"
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2011-01-19 13:07:45 +00:00
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#include "image.h"
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#include "options.h"
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#include "window.h"
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void on_keypress(XEvent*);
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2011-01-23 03:04:55 +00:00
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void on_buttonpress(XEvent*);
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2011-01-26 17:38:54 +00:00
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void on_configurenotify(XEvent*);
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2011-01-19 13:07:45 +00:00
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2011-01-20 16:00:59 +00:00
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void update_title();
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2011-01-19 13:07:45 +00:00
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static void (*handler[LASTEvent])(XEvent*) = {
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2011-01-20 20:44:34 +00:00
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[KeyPress] = on_keypress,
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2011-01-26 17:38:54 +00:00
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[ButtonPress] = on_buttonpress,
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2011-01-20 20:44:34 +00:00
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[ConfigureNotify] = on_configurenotify
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2011-01-19 13:07:45 +00:00
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};
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img_t img;
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win_t win;
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2011-01-20 15:24:48 +00:00
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const char **filenames;
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2011-01-23 11:36:27 +00:00
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int filecnt, fileidx;
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2011-01-19 13:07:45 +00:00
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2011-01-22 22:27:29 +00:00
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unsigned char timeout;
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2011-01-20 16:00:59 +00:00
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#define TITLE_LEN 256
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char win_title[TITLE_LEN];
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2011-01-19 13:07:45 +00:00
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void run() {
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2011-01-22 22:27:29 +00:00
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int xfd;
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fd_set fds;
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struct timeval t;
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2011-01-19 13:07:45 +00:00
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XEvent ev;
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2011-01-17 13:57:59 +00:00
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2011-01-22 22:27:29 +00:00
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timeout = 0;
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while (1) {
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if (timeout) {
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t.tv_sec = 0;
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t.tv_usec = 250;
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xfd = ConnectionNumber(win.env.dpy);
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FD_ZERO(&fds);
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FD_SET(xfd, &fds);
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if (!XPending(win.env.dpy) && !select(xfd + 1, &fds, 0, 0, &t)) {
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img_render(&img, &win);
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timeout = 0;
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}
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}
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if (!XNextEvent(win.env.dpy, &ev) && handler[ev.type])
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2011-01-19 13:07:45 +00:00
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handler[ev.type](&ev);
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}
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}
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2011-01-17 13:57:59 +00:00
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int main(int argc, char **argv) {
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2011-01-20 15:24:48 +00:00
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int i;
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2011-01-19 17:16:44 +00:00
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parse_options(argc, argv);
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2011-01-19 13:07:45 +00:00
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if (!options->filecnt) {
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print_usage();
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exit(1);
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}
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2011-01-20 15:24:48 +00:00
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if (!(filenames = (const char**) malloc(options->filecnt * sizeof(char*))))
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DIE("could not allocate memory");
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2011-01-19 13:07:45 +00:00
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fileidx = 0;
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2011-01-20 15:24:48 +00:00
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filecnt = 0;
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for (i = 0; i < options->filecnt; ++i) {
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if (!(img_load(&img, options->filenames[i]) < 0))
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filenames[filecnt++] = options->filenames[i];
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}
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if (!filecnt) {
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fprintf(stderr, "sxiv: no valid image filename given, aborting\n");
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exit(1);
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}
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2011-01-19 13:07:45 +00:00
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win_open(&win);
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2011-01-21 11:57:35 +00:00
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img_init(&img, &win);
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2011-01-17 15:41:50 +00:00
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2011-01-20 15:24:48 +00:00
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img_load(&img, filenames[fileidx]);
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2011-01-21 11:13:52 +00:00
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img_render(&img, &win);
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2011-01-20 16:00:59 +00:00
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update_title();
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2011-01-19 13:07:45 +00:00
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run();
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cleanup();
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2011-01-17 15:41:50 +00:00
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2011-01-17 13:57:59 +00:00
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return 0;
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}
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2011-01-18 14:33:25 +00:00
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void cleanup() {
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static int in = 0;
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2011-01-19 13:07:45 +00:00
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if (!in++) {
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2011-01-21 11:57:35 +00:00
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img_free(&img);
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2011-01-19 13:07:45 +00:00
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win_close(&win);
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}
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}
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void on_keypress(XEvent *ev) {
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2011-01-21 09:30:10 +00:00
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char key;
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2011-01-19 13:07:45 +00:00
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KeySym keysym;
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2011-01-21 12:48:02 +00:00
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int changed;
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2011-01-19 13:07:45 +00:00
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if (!ev)
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return;
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2011-01-21 12:48:02 +00:00
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XLookupString(&ev->xkey, &key, 1, &keysym, NULL);
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changed = 0;
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2011-01-19 13:07:45 +00:00
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switch (keysym) {
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case XK_Escape:
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cleanup();
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2011-01-21 09:30:10 +00:00
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exit(2);
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case XK_space:
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key = 'n';
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break;
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case XK_BackSpace:
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key = 'p';
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break;
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2011-01-28 12:42:39 +00:00
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case XK_Left:
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key = 'h';
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break;
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case XK_Down:
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key = 'j';
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break;
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case XK_Up:
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key = 'k';
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break;
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case XK_Right:
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key = 'l';
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break;
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2011-01-21 09:30:10 +00:00
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}
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switch (key) {
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case 'q':
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2011-01-19 13:07:45 +00:00
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cleanup();
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exit(0);
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2011-01-21 12:48:02 +00:00
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2011-01-23 17:20:08 +00:00
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/* navigate image list */
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2011-01-21 09:30:10 +00:00
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case 'n':
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2011-01-20 15:24:48 +00:00
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if (fileidx + 1 < filecnt) {
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img_load(&img, filenames[++fileidx]);
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2011-01-21 12:48:02 +00:00
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changed = 1;
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2011-01-20 15:04:34 +00:00
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}
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break;
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2011-01-21 09:30:10 +00:00
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case 'p':
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2011-01-20 15:04:34 +00:00
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if (fileidx > 0) {
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2011-01-20 15:24:48 +00:00
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img_load(&img, filenames[--fileidx]);
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2011-01-22 22:37:13 +00:00
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changed = 1;
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}
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break;
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2011-01-23 11:36:27 +00:00
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case '[':
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if (fileidx != 0) {
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fileidx = MAX(0, fileidx - 10);
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img_load(&img, filenames[fileidx]);
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changed = 1;
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}
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break;
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case ']':
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if (fileidx != filecnt - 1) {
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fileidx = MIN(fileidx + 10, filecnt - 1);
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img_load(&img, filenames[fileidx]);
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changed = 1;
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}
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break;
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2011-01-22 22:37:13 +00:00
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case 'g':
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if (fileidx != 0) {
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fileidx = 0;
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img_load(&img, filenames[fileidx]);
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changed = 1;
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}
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break;
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case 'G':
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if (fileidx != filecnt - 1) {
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fileidx = filecnt - 1;
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img_load(&img, filenames[fileidx]);
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2011-01-21 12:48:02 +00:00
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changed = 1;
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2011-01-20 15:04:34 +00:00
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}
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break;
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2011-01-21 12:48:02 +00:00
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/* zooming */
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2011-01-21 09:30:10 +00:00
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case '+':
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case '=':
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2011-01-21 12:48:02 +00:00
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changed = img_zoom_in(&img);
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2011-01-20 22:22:00 +00:00
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break;
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2011-01-21 09:30:10 +00:00
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case '-':
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2011-01-21 12:48:02 +00:00
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changed = img_zoom_out(&img);
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2011-01-20 22:22:00 +00:00
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break;
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2011-01-21 12:48:02 +00:00
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/* panning */
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case 'h':
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changed = img_pan(&img, &win, PAN_LEFT);
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break;
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case 'j':
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changed = img_pan(&img, &win, PAN_DOWN);
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break;
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case 'k':
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changed = img_pan(&img, &win, PAN_UP);
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break;
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case 'l':
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changed = img_pan(&img, &win, PAN_RIGHT);
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break;
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2011-01-23 15:14:41 +00:00
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2011-01-26 13:42:10 +00:00
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/* rotation */
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case '<':
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changed = img_rotate_left(&img, &win);
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break;
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case '>':
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changed = img_rotate_right(&img, &win);
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break;
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2011-01-26 13:59:32 +00:00
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/* control window */
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2011-01-23 15:14:41 +00:00
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case 'f':
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win_toggle_fullscreen(&win);
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break;
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2011-01-26 13:59:32 +00:00
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/* miscellaneous */
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case 'a':
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changed = img_toggle_antialias(&img);
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break;
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2011-01-21 12:48:02 +00:00
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}
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if (changed) {
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img_render(&img, &win);
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update_title();
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2011-01-22 22:27:29 +00:00
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timeout = 0;
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2011-01-19 13:07:45 +00:00
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}
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}
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2011-01-26 17:38:54 +00:00
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void on_buttonpress(XEvent *ev) {
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int changed;
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unsigned int mask;
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if (!ev)
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return;
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mask = CLEANMASK(ev->xbutton.state);
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changed = 0;
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switch (ev->xbutton.button) {
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case Button1:
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if (fileidx + 1 < filecnt) {
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img_load(&img, filenames[++fileidx]);
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changed = 1;
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}
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break;
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case Button3:
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if (fileidx > 0) {
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img_load(&img, filenames[--fileidx]);
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changed = 1;
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}
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break;
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case Button4:
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if (mask == ControlMask)
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changed = img_zoom_in(&img);
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else if (mask == ShiftMask)
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changed = img_pan(&img, &win, PAN_LEFT);
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else
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changed = img_pan(&img, &win, PAN_UP);
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break;
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case Button5:
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if (mask == ControlMask)
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changed = img_zoom_out(&img);
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else if (mask == ShiftMask)
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changed = img_pan(&img, &win, PAN_RIGHT);
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else
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changed = img_pan(&img, &win, PAN_DOWN);
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break;
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case 6:
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changed = img_pan(&img, &win, PAN_LEFT);
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break;
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case 7:
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changed = img_pan(&img, &win, PAN_RIGHT);
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break;
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}
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if (changed) {
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img_render(&img, &win);
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update_title();
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timeout = 0;
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}
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}
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2011-01-19 13:07:45 +00:00
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void on_configurenotify(XEvent *ev) {
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if (!ev)
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return;
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2011-01-22 22:27:29 +00:00
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if (win_configure(&win, &ev->xconfigure)) {
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img.checkpan = 1;
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timeout = 1;
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}
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2011-01-19 13:07:45 +00:00
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}
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2011-01-20 16:00:59 +00:00
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void update_title() {
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int n;
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n = snprintf(win_title, TITLE_LEN, "sxiv: [%d/%d] <%d%%> %s", fileidx + 1,
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filecnt, (int) (img.zoom * 100.0), filenames[fileidx]);
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if (n >= TITLE_LEN) {
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win_title[TITLE_LEN - 2] = '.';
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win_title[TITLE_LEN - 3] = '.';
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win_title[TITLE_LEN - 4] = '.';
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}
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win_set_title(&win, win_title);
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}
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