435 lines
8.6 KiB
C
435 lines
8.6 KiB
C
/* sxiv: main.c
|
|
* Copyright (c) 2011 Bert Muennich <muennich at informatik.hu-berlin.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <dirent.h>
|
|
#include <sys/select.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <X11/Xlib.h>
|
|
#include <X11/Xutil.h>
|
|
#include <X11/keysym.h>
|
|
|
|
#include "image.h"
|
|
#include "options.h"
|
|
#include "util.h"
|
|
#include "window.h"
|
|
|
|
void update_title();
|
|
void check_append(const char*);
|
|
void read_dir_rec(const char*);
|
|
void run();
|
|
|
|
img_t img;
|
|
win_t win;
|
|
|
|
#define DNAME_CNT 512
|
|
#define FNAME_CNT 4096
|
|
const char **filenames;
|
|
int filecnt, fileidx;
|
|
|
|
#define TITLE_LEN 256
|
|
char win_title[TITLE_LEN];
|
|
|
|
void cleanup() {
|
|
static int in = 0;
|
|
|
|
if (!in++) {
|
|
img_free(&img);
|
|
win_close(&win);
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
int i;
|
|
const char *filename;
|
|
struct stat fstats;
|
|
|
|
parse_options(argc, argv);
|
|
|
|
if (!options->filecnt) {
|
|
print_usage();
|
|
exit(1);
|
|
}
|
|
|
|
if (options->recursive)
|
|
filecnt = FNAME_CNT;
|
|
else
|
|
filecnt = options->filecnt;
|
|
|
|
filenames = (const char**) s_malloc(filecnt * sizeof(const char*));
|
|
fileidx = 0;
|
|
|
|
for (i = 0; i < options->filecnt; ++i) {
|
|
filename = options->filenames[i];
|
|
if (stat(filename, &fstats)) {
|
|
warn("could not stat file: %s", filename);
|
|
} else if (S_ISDIR(fstats.st_mode)) {
|
|
if (options->recursive)
|
|
read_dir_rec(filename);
|
|
else
|
|
warn("ignoring directory: %s", filename);
|
|
} else {
|
|
check_append(filename);
|
|
}
|
|
}
|
|
|
|
filecnt = fileidx;
|
|
fileidx = 0;
|
|
|
|
if (!filecnt) {
|
|
fprintf(stderr, "sxiv: no valid image filename given, aborting\n");
|
|
exit(1);
|
|
}
|
|
|
|
win_open(&win);
|
|
img_init(&img, &win);
|
|
|
|
img_load(&img, filenames[fileidx]);
|
|
img_render(&img, &win);
|
|
update_title();
|
|
|
|
run();
|
|
|
|
cleanup();
|
|
|
|
return 0;
|
|
}
|
|
|
|
void update_title() {
|
|
int n;
|
|
|
|
n = snprintf(win_title, TITLE_LEN, "sxiv: [%d/%d] <%d%%> %s", fileidx + 1,
|
|
filecnt, (int) (img.zoom * 100.0), filenames[fileidx]);
|
|
|
|
if (n >= TITLE_LEN) {
|
|
win_title[TITLE_LEN - 2] = '.';
|
|
win_title[TITLE_LEN - 3] = '.';
|
|
win_title[TITLE_LEN - 4] = '.';
|
|
}
|
|
|
|
win_set_title(&win, win_title);
|
|
}
|
|
|
|
void check_append(const char *filename) {
|
|
if (!filename)
|
|
return;
|
|
|
|
if (img_check(filename)) {
|
|
if (fileidx == filecnt) {
|
|
filecnt *= 2;
|
|
filenames = (const char**) s_realloc(filenames,
|
|
filecnt * sizeof(const char*));
|
|
}
|
|
filenames[fileidx++] = filename;
|
|
}
|
|
}
|
|
|
|
void read_dir_rec(const char *dirname) {
|
|
char *filename;
|
|
const char **dirnames;
|
|
int dircnt, diridx;
|
|
unsigned char first;
|
|
size_t len;
|
|
DIR *dir;
|
|
struct dirent *dentry;
|
|
struct stat fstats;
|
|
|
|
if (!dirname)
|
|
return;
|
|
|
|
dircnt = DNAME_CNT;
|
|
diridx = first = 1;
|
|
dirnames = (const char**) s_malloc(dircnt * sizeof(const char*));
|
|
dirnames[0] = dirname;
|
|
|
|
while (diridx > 0) {
|
|
dirname = dirnames[--diridx];
|
|
if (!(dir = opendir(dirname)))
|
|
die("could not open directory: %s", dirname);
|
|
while ((dentry = readdir(dir))) {
|
|
if (!strcmp(dentry->d_name, ".") || !strcmp(dentry->d_name, ".."))
|
|
continue;
|
|
len = strlen(dirname) + strlen(dentry->d_name) + 2;
|
|
filename = (char*) s_malloc(len * sizeof(char));
|
|
snprintf(filename, len, "%s/%s", dirname, dentry->d_name);
|
|
if (stat(filename, &fstats)) {
|
|
warn("could not stat file: %s", filename);
|
|
free(filename);
|
|
} else if (S_ISDIR(fstats.st_mode)) {
|
|
if (diridx == dircnt) {
|
|
dircnt *= 2;
|
|
dirnames = (const char**) s_realloc(dirnames,
|
|
dircnt * sizeof(const char*));
|
|
}
|
|
dirnames[diridx++] = filename;
|
|
} else {
|
|
check_append(filename);
|
|
}
|
|
}
|
|
closedir(dir);
|
|
if (!first)
|
|
free((void*) dirname);
|
|
else
|
|
first = 0;
|
|
}
|
|
|
|
free(dirnames);
|
|
}
|
|
|
|
|
|
/* event handling */
|
|
|
|
unsigned char timeout;
|
|
int mox, moy;
|
|
|
|
void on_keypress(XKeyEvent *kev) {
|
|
char key;
|
|
KeySym ksym;
|
|
int changed;
|
|
|
|
if (!kev)
|
|
return;
|
|
|
|
XLookupString(kev, &key, 1, &ksym, NULL);
|
|
changed = 0;
|
|
|
|
switch (ksym) {
|
|
case XK_Escape:
|
|
cleanup();
|
|
exit(2);
|
|
case XK_q:
|
|
cleanup();
|
|
exit(0);
|
|
|
|
/* navigate image list */
|
|
case XK_n:
|
|
case XK_space:
|
|
if (fileidx + 1 < filecnt) {
|
|
changed = img_load(&img, filenames[++fileidx]);
|
|
}
|
|
break;
|
|
case XK_p:
|
|
case XK_BackSpace:
|
|
if (fileidx > 0) {
|
|
changed = img_load(&img, filenames[--fileidx]);
|
|
}
|
|
break;
|
|
case XK_bracketleft:
|
|
if (fileidx != 0) {
|
|
fileidx = MAX(0, fileidx - 10);
|
|
changed = img_load(&img, filenames[fileidx]);
|
|
}
|
|
break;
|
|
case XK_bracketright:
|
|
if (fileidx != filecnt - 1) {
|
|
fileidx = MIN(fileidx + 10, filecnt - 1);
|
|
changed = img_load(&img, filenames[fileidx]);
|
|
}
|
|
break;
|
|
case XK_g:
|
|
if (fileidx != 0) {
|
|
fileidx = 0;
|
|
changed = img_load(&img, filenames[fileidx]);
|
|
}
|
|
break;
|
|
case XK_G:
|
|
if (fileidx != filecnt - 1) {
|
|
fileidx = filecnt - 1;
|
|
changed = img_load(&img, filenames[fileidx]);
|
|
}
|
|
break;
|
|
|
|
/* zooming */
|
|
case XK_plus:
|
|
case XK_equal:
|
|
changed = img_zoom_in(&img);
|
|
break;
|
|
case XK_minus:
|
|
changed = img_zoom_out(&img);
|
|
break;
|
|
|
|
/* panning */
|
|
case XK_h:
|
|
case XK_Left:
|
|
changed = img_pan(&img, &win, PAN_LEFT);
|
|
break;
|
|
case XK_j:
|
|
case XK_Down:
|
|
changed = img_pan(&img, &win, PAN_DOWN);
|
|
break;
|
|
case XK_k:
|
|
case XK_Up:
|
|
changed = img_pan(&img, &win, PAN_UP);
|
|
break;
|
|
case XK_l:
|
|
case XK_Right:
|
|
changed = img_pan(&img, &win, PAN_RIGHT);
|
|
break;
|
|
|
|
/* rotation */
|
|
case XK_less:
|
|
changed = img_rotate_left(&img, &win);
|
|
break;
|
|
case XK_greater:
|
|
changed = img_rotate_right(&img, &win);
|
|
break;
|
|
|
|
/* control window */
|
|
case XK_f:
|
|
win_toggle_fullscreen(&win);
|
|
break;
|
|
|
|
/* miscellaneous */
|
|
case XK_a:
|
|
changed = img_toggle_antialias(&img);
|
|
break;
|
|
case XK_r:
|
|
changed = img_load(&img, filenames[fileidx]);
|
|
break;
|
|
}
|
|
|
|
if (changed) {
|
|
img_render(&img, &win);
|
|
update_title();
|
|
timeout = 0;
|
|
}
|
|
}
|
|
|
|
void on_buttonpress(XButtonEvent *bev) {
|
|
int changed;
|
|
unsigned int mask;
|
|
|
|
if (!bev)
|
|
return;
|
|
|
|
mask = CLEANMASK(bev->state);
|
|
changed = 0;
|
|
|
|
switch (bev->button) {
|
|
case Button1:
|
|
if (fileidx + 1 < filecnt) {
|
|
img_load(&img, filenames[++fileidx]);
|
|
changed = 1;
|
|
}
|
|
break;
|
|
case Button2:
|
|
mox = bev->x;
|
|
moy = bev->y;
|
|
win_set_cursor(&win, CURSOR_HAND);
|
|
break;
|
|
case Button3:
|
|
if (fileidx > 0) {
|
|
img_load(&img, filenames[--fileidx]);
|
|
changed = 1;
|
|
}
|
|
break;
|
|
case Button4:
|
|
if (mask == ControlMask)
|
|
changed = img_zoom_in(&img);
|
|
else if (mask == ShiftMask)
|
|
changed = img_pan(&img, &win, PAN_LEFT);
|
|
else
|
|
changed = img_pan(&img, &win, PAN_UP);
|
|
break;
|
|
case Button5:
|
|
if (mask == ControlMask)
|
|
changed = img_zoom_out(&img);
|
|
else if (mask == ShiftMask)
|
|
changed = img_pan(&img, &win, PAN_RIGHT);
|
|
else
|
|
changed = img_pan(&img, &win, PAN_DOWN);
|
|
break;
|
|
case 6:
|
|
changed = img_pan(&img, &win, PAN_LEFT);
|
|
break;
|
|
case 7:
|
|
changed = img_pan(&img, &win, PAN_RIGHT);
|
|
break;
|
|
}
|
|
|
|
if (changed) {
|
|
img_render(&img, &win);
|
|
update_title();
|
|
timeout = 0;
|
|
}
|
|
}
|
|
|
|
void on_motionnotify(XMotionEvent *mev) {
|
|
if (!mev)
|
|
return;
|
|
|
|
if (mev->x >= 0 && mev->x <= win.w && mev->y >= 0 && mev->y <= win.h) {
|
|
if (img_move(&img, &win, mev->x - mox, mev->y - moy))
|
|
timeout = 1;
|
|
|
|
mox = mev->x;
|
|
moy = mev->y;
|
|
}
|
|
}
|
|
|
|
void run() {
|
|
int xfd;
|
|
fd_set fds;
|
|
struct timeval t;
|
|
XEvent ev;
|
|
|
|
timeout = 0;
|
|
|
|
while (1) {
|
|
if (timeout) {
|
|
t.tv_sec = 0;
|
|
t.tv_usec = 250;
|
|
xfd = ConnectionNumber(win.env.dpy);
|
|
FD_ZERO(&fds);
|
|
FD_SET(xfd, &fds);
|
|
|
|
if (!XPending(win.env.dpy) && !select(xfd + 1, &fds, 0, 0, &t)) {
|
|
img_render(&img, &win);
|
|
timeout = 0;
|
|
}
|
|
}
|
|
|
|
if (!XNextEvent(win.env.dpy, &ev)) {
|
|
switch (ev.type) {
|
|
case KeyPress:
|
|
on_keypress(&ev.xkey);
|
|
break;
|
|
case ButtonPress:
|
|
on_buttonpress(&ev.xbutton);
|
|
break;
|
|
case ButtonRelease:
|
|
if (ev.xbutton.button == Button2)
|
|
win_set_cursor(&win, CURSOR_ARROW);
|
|
break;
|
|
case MotionNotify:
|
|
on_motionnotify(&ev.xmotion);
|
|
break;
|
|
case ConfigureNotify:
|
|
if (win_configure(&win, &ev.xconfigure)) {
|
|
img.checkpan = 1;
|
|
timeout = 1;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|