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Major code refactoring

Browse source 
- Configurable key and mouse mappings in config.h
- Put event handling code from main.c into events.[ch]
This commit is contained in:
Bert 2011-07-26 18:01:29 +02:00
parent a271e16744
commit b8ff1677b1
12 changed files with 808 additions and 648 deletions
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4
Makefile
View file

@ -1,6 +1,6 @@
all: sxiv
VERSION = git-20110722
VERSION = git-20110726
CC = gcc
DESTDIR =
@ -9,7 +9,7 @@ CFLAGS = -Wall -pedantic -DVERSION=\"$(VERSION)\"
LDFLAGS =
LIBS = -lX11 -lImlib2
SRC = image.c main.c options.c thumbs.c util.c window.c
SRC = events.o image.c main.c options.c thumbs.c util.c window.c
OBJ = $(SRC:.c=.o)
sxiv: $(OBJ)

124
config.h
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@ -1,36 +1,120 @@
/* default window dimensions (overwritten via -g option): */
#ifdef _GENERAL_CONFIG
/* enable external commands (defined below)? 0 = off, 1 = on: */
enum { EXT_COMMANDS = 0 };
#endif
#ifdef _WINDOW_CONFIG
/* default window dimensions (overwritten via -g option): */
enum { WIN_WIDTH = 800, WIN_HEIGHT = 600 };
/* default color for window background: *
* (see X(7) "COLOR NAMES" section for valid values) */
/* default color for window background: *
* (see X(7) "COLOR NAMES" section for valid values) */
static const char * const BG_COLOR = "#999999";
/* default color for thumbnail selection: */
/* default color for thumbnail selection: */
static const char * const SEL_COLOR = "#0066FF";
/* how should images be scaled when they are loaded?: *
* (also controllable via -d/-s/-Z/-z options) *
* SCALE_DOWN: 100%, but fit large images into window, *
* SCALE_FIT: fit all images into window, *
* SCALE_ZOOM: use current zoom level, 100% at startup */
#endif
#ifdef _IMAGE_CONFIG
/* how should images be scaled when they are loaded?: *
* (also controllable via -d/-s/-Z/-z options) *
* SCALE_DOWN: 100%, but fit large images into window, *
* SCALE_FIT: fit all images into window, *
* SCALE_ZOOM: use current zoom level, 100% at startup */
static const scalemode_t SCALE_MODE = SCALE_DOWN;
/* levels (percent) to use when zooming via '-' and '+': */
/* levels (percent) to use when zooming via '-' and '+': */
static const float zoom_levels[] = {
12.5, 25.0, 50.0, 75.0,
100.0, 150.0, 200.0, 400.0, 800.0
};
/* default dimension of thumbnails (width == height): */
#endif
#ifdef _THUMBS_CONFIG
/* default dimension of thumbnails (width == height): */
enum { THUMB_SIZE = 60 };
/* enable external commands (defined below)? 0=off, 1=on: */
enum { EXT_COMMANDS = 0 };
#endif
#ifdef _MAPPINGS_CONFIG
/* external commands and corresponding key mappings: */
static const command_t commands[] = {
/* ctrl-... reload? command, '#' is replaced by filename */
{ ',', 1, "jpegtran -rotate 270 -copy all -outfile # #" },
{ '.', 1, "jpegtran -rotate 90 -copy all -outfile # #" },
{ '<', 1, "mogrify -rotate -90 #" },
{ '>', 1, "mogrify -rotate +90 #" }
/* keyboard mappings for image and thumbnail mode: */
static const keymap_t keys[] = {
/* key function argument */
{ XK_q, quit, None },
{ XK_r, reload, None },
{ XK_f, toggle_fullscreen, None },
{ XK_a, toggle_antialias, None },
{ XK_A, toggle_alpha, None },
{ XK_Return, switch_mode, None },
{ XK_g, first, None },
{ XK_G, last, None },
{ XK_n, navigate, +1 },
{ XK_space, navigate, +1 },
{ XK_p, navigate, -1 },
{ XK_BackSpace, navigate, -1 },
{ XK_bracketright, navigate, +10 },
{ XK_bracketleft, navigate, -10 },
{ XK_D, remove_image, None },
{ XK_h, move, DIR_LEFT },
{ XK_Left, move, DIR_LEFT },
{ XK_j, move, DIR_DOWN },
{ XK_Down, move, DIR_DOWN },
{ XK_k, move, DIR_UP },
{ XK_Up, move, DIR_UP },
{ XK_l, move, DIR_RIGHT },
{ XK_Right, move, DIR_RIGHT },
{ XK_braceleft, scroll, DIR_LEFT },
{ XK_Next, scroll, DIR_DOWN },
{ XK_Prior, scroll, DIR_UP },
{ XK_braceright, scroll, DIR_RIGHT },
{ XK_H, pan_edge, DIR_LEFT },
{ XK_J, pan_edge, DIR_DOWN },
{ XK_K, pan_edge, DIR_UP },
{ XK_L, pan_edge, DIR_RIGHT },
{ XK_plus, zoom, +1 },
{ XK_equal, zoom, +1 },
{ XK_KP_Add, zoom, +1 },
{ XK_minus, zoom, -1 },
{ XK_KP_Subtract, zoom, -1 },
{ XK_0, zoom, 0 },
{ XK_KP_0, zoom, 0 },
{ XK_w, fit_to_win, None },
{ XK_W, fit_to_img, None },
{ XK_less, rotate, DIR_LEFT },
{ XK_greater, rotate, DIR_RIGHT },
};
/* external commands and corresponding key mappings: */
static const command_t commands[] = {
/* ctrl-... reload? command, '#' is replaced by filename */
{ XK_comma, True, "jpegtran -rotate 270 -copy all -outfile # #" },
{ XK_period, True, "jpegtran -rotate 90 -copy all -outfile # #" },
{ XK_less, True, "mogrify -rotate -90 #" },
{ XK_greater, True, "mogrify -rotate +90 #" }
};
/* mouse button mappings for image mode: */
static const button_t buttons[] = {
/* modifier button function argument */
{ None, Button1, navigate, +1 },
{ None, Button3, navigate, -1 },
{ None, Button2, drag, None },
{ None, Button4, move, DIR_UP },
{ None, Button5, move, DIR_DOWN },
{ ShiftMask, Button4, move, DIR_LEFT },
{ ShiftMask, Button5, move, DIR_RIGHT },
{ ControlMask, Button4, zoom, +1 },
{ ControlMask, Button5, zoom, -1 },
};
#endif

562
events.c Normal file
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@ -0,0 +1,562 @@
/* sxiv: events.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.
*/
#define _GENERAL_CONFIG
#define _MAPPINGS_CONFIG
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <X11/keysym.h>
#include <X11/Xutil.h>
#include "events.h"
#include "image.h"
#include "thumbs.h"
#include "types.h"
#include "util.h"
#include "window.h"
#include "config.h"
/* timeouts in milliseconds: */
enum {
TO_WIN_RESIZE = 75,
TO_IMAGE_DRAG = 1,
TO_CURSOR_HIDE = 1500,
TO_THUMBS_LOAD = 200
};
void cleanup();
void remove_file(int, unsigned char);
void load_image(int);
void update_title();
extern appmode_t mode;
extern img_t img;
extern tns_t tns;
extern win_t win;
extern char **filenames;
extern int filecnt, fileidx;
int timo_cursor;
int timo_redraw;
unsigned char dragging;
int mox, moy;
int run_command(const char *cline, Bool reload) {
int fncnt, fnlen;
char *cn, *cmdline;
const char *co, *fname;
pid_t pid;
int ret, status;
if (!cline || !*cline)
return 0;
fncnt = 0;
co = cline - 1;
while ((co = strchr(co + 1, '#')))
fncnt++;
if (!fncnt)
return 0;
ret = 0;
fname = filenames[mode == MODE_NORMAL ? fileidx : tns.sel];
fnlen = strlen(fname);
cn = cmdline = (char*) s_malloc((strlen(cline) + fncnt * (fnlen + 2)) *
sizeof(char));
/* replace all '#' with filename */
for (co = cline; *co; co++) {
if (*co == '#') {
*cn++ = '"';
strcpy(cn, fname);
cn += fnlen;
*cn++ = '"';
} else {
*cn++ = *co;
}
}
*cn = '\0';
if ((pid = fork()) == 0) {
execlp("/bin/sh", "/bin/sh", "-c", cmdline, NULL);
warn("could not exec: /bin/sh");
exit(1);
} else if (pid < 0) {
warn("could not fork. command line was: %s", cmdline);
} else if (reload) {
waitpid(pid, &status, 0);
if (WIFEXITED(status) && WEXITSTATUS(status) == 0)
ret = 1;
else
warn("child exited with non-zero return value: %d. command line was: %s",
WEXITSTATUS(status), cmdline);
}
free(cmdline);
return ret;
}
void redraw() {
if (mode == MODE_NORMAL) {
img_render(&img, &win);
if (timo_cursor)
win_set_cursor(&win, CURSOR_ARROW);
else if (!dragging)
win_set_cursor(&win, CURSOR_NONE);
} else {
tns_render(&tns, &win);
}
update_title();
timo_redraw = 0;
}
void on_keypress(XEvent *ev) {
int i;
XKeyEvent *kev;
KeySym ksym;
char key;
if (!ev || ev->type != KeyPress)
return;
kev = &ev->xkey;
XLookupString(kev, &key, 1, &ksym, NULL);
if (EXT_COMMANDS && (CLEANMASK(kev->state) & ControlMask)) {
for (i = 0; i < LEN(commands); i++) {
if (commands[i].ksym == ksym) {
win_set_cursor(&win, CURSOR_WATCH);
if (run_command(commands[i].cmdline, commands[i].reload)) {
if (mode == MODE_NORMAL) {
if (fileidx < tns.cnt)
tns_load(&tns, fileidx, filenames[fileidx], 1);
img_close(&img, 1);
load_image(fileidx);
} else {
if (!tns_load(&tns, tns.sel, filenames[tns.sel], 0)) {
remove_file(tns.sel, 0);
tns.dirty = 1;
if (tns.sel >= tns.cnt)
tns.sel = tns.cnt - 1;
}
}
redraw();
}
if (mode == MODE_THUMBS)
win_set_cursor(&win, CURSOR_ARROW);
else if (!timo_cursor)
win_set_cursor(&win, CURSOR_NONE);
return;
}
}
}
for (i = 0; i < LEN(keys); i++) {
if (ksym == keys[i].ksym && keys[i].handler) {
if (keys[i].handler(ev, keys[i].arg))
redraw();
return;
}
}
}
void on_buttonpress(XEvent *ev) {
int i, sel;
XButtonEvent *bev;
if (!ev || ev->type != ButtonPress)
return;
bev = &ev->xbutton;
if (mode == MODE_NORMAL) {
if (!dragging) {
win_set_cursor(&win, CURSOR_ARROW);
timo_cursor = TO_CURSOR_HIDE;
}
for (i = 0; i < LEN(buttons); i++) {
if (CLEANMASK(bev->state) == CLEANMASK(buttons[i].mod) &&
bev->button == buttons[i].button && buttons[i].handler)
{
if (buttons[i].handler(ev, buttons[i].arg))
redraw();
return;
}
}
} else {
/* thumbnail mode */
switch (bev->button) {
case Button1:
if ((sel = tns_translate(&tns, bev->x, bev->y)) >= 0) {
if (sel == tns.sel) {
load_image(tns.sel);
mode = MODE_NORMAL;
timo_cursor = TO_CURSOR_HIDE;
} else {
tns_highlight(&tns, &win, tns.sel, False);
tns_highlight(&tns, &win, sel, True);
tns.sel = sel;
}
redraw();
break;
}
break;
case Button4:
case Button5:
if (tns_scroll(&tns, bev->button == Button4 ? DIR_UP : DIR_DOWN))
redraw();
break;
}
}
}
void on_motionnotify(XEvent *ev) {
XMotionEvent *mev;
if (!ev || ev->type != MotionNotify)
return;
mev = &ev->xmotion;
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))
timo_redraw = TO_IMAGE_DRAG;
mox = mev->x;
moy = mev->y;
}
}
void run() {
int xfd, timeout;
fd_set fds;
struct timeval tt, t0, t1;
XEvent ev;
dragging = 0;
timo_cursor = mode == MODE_NORMAL ? TO_CURSOR_HIDE : 0;
redraw();
while (1) {
if (mode == MODE_THUMBS && tns.cnt < filecnt) {
/* load thumbnails */
win_set_cursor(&win, CURSOR_WATCH);
gettimeofday(&t0, 0);
while (tns.cnt < filecnt && !XPending(win.env.dpy)) {
if (tns_load(&tns, tns.cnt, filenames[tns.cnt], 0))
tns.cnt++;
else
remove_file(tns.cnt, 0);
gettimeofday(&t1, 0);
if (TIMEDIFF(&t1, &t0) >= TO_THUMBS_LOAD)
break;
}
if (tns.cnt == filecnt)
win_set_cursor(&win, CURSOR_ARROW);
if (!XPending(win.env.dpy)) {
redraw();
continue;
} else {
timo_redraw = TO_THUMBS_LOAD;
}
} else if (timo_cursor || timo_redraw) {
/* check active timeouts */
gettimeofday(&t0, 0);
timeout = MIN(timo_cursor + 1, timo_redraw + 1);
MSEC_TO_TIMEVAL(timeout, &tt);
xfd = ConnectionNumber(win.env.dpy);
FD_ZERO(&fds);
FD_SET(xfd, &fds);
if (!XPending(win.env.dpy))
select(xfd + 1, &fds, 0, 0, &tt);
gettimeofday(&t1, 0);
timeout = MIN(TIMEDIFF(&t1, &t0), timeout);
/* timeouts fired? */
if (timo_cursor) {
timo_cursor = MAX(0, timo_cursor - timeout);
if (!timo_cursor)
win_set_cursor(&win, CURSOR_NONE);
}
if (timo_redraw) {
timo_redraw = MAX(0, timo_redraw - timeout);
if (!timo_redraw)
redraw();
}
if ((timo_cursor || timo_redraw) && !XPending(win.env.dpy))
continue;
}
if (!XNextEvent(win.env.dpy, &ev)) {
switch (ev.type) {
case ButtonPress:
on_buttonpress(&ev);
break;
case ButtonRelease:
if (dragging) {
dragging = 0;
if (mode == MODE_NORMAL) {
win_set_cursor(&win, CURSOR_ARROW);
timo_cursor = TO_CURSOR_HIDE;
}
}
break;
case ClientMessage:
if ((Atom) ev.xclient.data.l[0] == wm_delete_win)
return;
break;
case ConfigureNotify:
if (win_configure(&win, &ev.xconfigure)) {
timo_redraw = TO_WIN_RESIZE;
if (mode == MODE_NORMAL)
img.checkpan = 1;
else
tns.dirty = 1;
}
break;
case KeyPress:
on_keypress(&ev);
break;
case MotionNotify:
if (dragging) {
on_motionnotify(&ev);
} else if (mode == MODE_NORMAL) {
if (!timo_cursor)
win_set_cursor(&win, CURSOR_ARROW);
timo_cursor = TO_CURSOR_HIDE;
}
break;
}
}
}
}
/* handler functions for key and button mappings: */
int quit(XEvent *e, arg_t a) {
cleanup();
exit(0);
}
int reload(XEvent *e, arg_t a) {
if (mode == MODE_NORMAL) {
load_image(fileidx);
return 1;
} else {
return 0;
}
}
int toggle_fullscreen(XEvent *e, arg_t a) {
win_toggle_fullscreen(&win);
if (mode == MODE_NORMAL)
img.checkpan = 1;
else
tns.dirty = 1;
timo_redraw = TO_WIN_RESIZE;
return 0;
}
int toggle_antialias(XEvent *e, arg_t a) {
if (mode == MODE_NORMAL) {
img_toggle_antialias(&img);
return 1;
} else {
return 0;
}
}
int toggle_alpha(XEvent *e, arg_t a) {
if (mode == MODE_NORMAL) {
img.alpha ^= 1;
return 1;
} else {
return 0;
}
}
int switch_mode(XEvent *e, arg_t a) {
if (mode == MODE_NORMAL) {
if (!tns.thumbs)
tns_init(&tns, filecnt);
img_close(&img, 0);
win_set_cursor(&win, CURSOR_ARROW);
timo_cursor = 0;
tns.sel = fileidx;
tns.dirty = 1;
mode = MODE_THUMBS;
} else {
timo_cursor = TO_CURSOR_HIDE;
load_image(tns.sel);
mode = MODE_NORMAL;
}
return 1;
}
int navigate(XEvent *e, arg_t n) {
if (mode == MODE_NORMAL) {
n += fileidx;
if (n < 0)
n = 0;
if (n >= filecnt)
n = filecnt - 1;
if (n != fileidx) {
load_image(n);
return 1;
}
}
return 0;
}
int first(XEvent *e, arg_t a) {
if (mode == MODE_NORMAL && fileidx != 0) {
load_image(0);
return 1;
} else if (mode == MODE_THUMBS && tns.sel != 0) {
tns.sel = 0;
tns.dirty = 1;
return 1;
} else {
return 0;
}
}
int last(XEvent *e, arg_t a) {
if (mode == MODE_NORMAL && fileidx != filecnt - 1) {
load_image(filecnt - 1);
return 1;
} else if (mode == MODE_THUMBS && tns.sel != tns.cnt - 1) {
tns.sel = tns.cnt - 1;
tns.dirty = 1;
return 1;
} else {
return 0;
}
}
int remove_image(XEvent *e, arg_t a) {
if (mode == MODE_NORMAL) {
remove_file(fileidx, 1);
load_image(fileidx >= filecnt ? filecnt - 1 : fileidx);
return 1;
} else if (tns.sel < tns.cnt) {
remove_file(tns.sel, 1);
tns.dirty = 1;
if (tns.sel >= tns.cnt)
tns.sel = tns.cnt - 1;
return 1;
} else {
return 0;
}
}
int move(XEvent *e, arg_t dir) {
if (mode == MODE_NORMAL)
return img_pan(&img, &win, dir, 0);
else
return tns_move_selection(&tns, &win, dir);
}
int scroll(XEvent *e, arg_t dir) {
if (mode == MODE_NORMAL)
return img_pan(&img, &win, dir, 1);
else
return 0;
}
int pan_edge(XEvent *e, arg_t dir) {
if (mode == MODE_NORMAL)
return img_pan_edge(&img, &win, dir);
else
return 0;
}
int drag(XEvent *e, arg_t a) {
if (mode == MODE_NORMAL) {
mox = e->xbutton.x;
moy = e->xbutton.y;
win_set_cursor(&win, CURSOR_HAND);
timo_cursor = 0;
dragging = 1;
}
return 0;
}
int rotate(XEvent *e, arg_t dir) {
if (mode == MODE_NORMAL) {
if (dir == DIR_LEFT) {
img_rotate_left(&img, &win);
return 1;
} else if (dir == DIR_RIGHT) {
img_rotate_right(&img, &win);
return 1;
}
}
return 0;
}
int zoom(XEvent *e, arg_t scale) {
if (mode != MODE_NORMAL)
return 0;
if (scale > 0)
return img_zoom_in(&img, &win);
else if (scale < 0)
return img_zoom_out(&img, &win);
else
return img_zoom(&img, &win, 1.0);
}
int fit_to_win(XEvent *e, arg_t ret) {
if (mode == MODE_NORMAL) {
if ((ret = img_fit_win(&img, &win)))
img_center(&img, &win);
return ret;
} else {
return 0;
}
}
int fit_to_img(XEvent *e, arg_t ret) {
int x, y;
unsigned int w, h;
if (mode == MODE_NORMAL) {
x = MAX(0, win.x + img.x);
y = MAX(0, win.y + img.y);
w = img.w * img.zoom;
h = img.h * img.zoom;
if ((ret = win_moveresize(&win, x, y, w, h))) {
img.x = x - win.x;
img.y = y - win.y;
}
return ret;
} else {
return 0;
}
}

67
events.h Normal file
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@ -0,0 +1,67 @@
/* sxiv: events.h
* 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.
*/
#ifndef EVENTS_H
#define EVENTS_H
#include <X11/Xlib.h>
typedef struct {
KeySym ksym;
Bool reload;
const char *cmdline;
} command_t;
typedef int arg_t;
typedef struct {
KeySym ksym;
int (*handler)(XEvent*, arg_t);
arg_t arg;
} keymap_t;
typedef struct {
unsigned int mod;
unsigned int button;
int (*handler)(XEvent*, arg_t);
arg_t arg;
} button_t;
void run();
/* handler functions for key and button mappings: */
int quit(XEvent*, arg_t);
int reload(XEvent*, arg_t);
int toggle_fullscreen(XEvent*, arg_t);
int toggle_antialias(XEvent*, arg_t);
int toggle_alpha(XEvent*, arg_t);
int switch_mode(XEvent*, arg_t);
int navigate(XEvent*, arg_t);
int first(XEvent*, arg_t);
int last(XEvent*, arg_t);
int remove_image(XEvent*, arg_t);
int move(XEvent*, arg_t);
int scroll(XEvent*, arg_t);
int pan_edge(XEvent*, arg_t);
int drag(XEvent*, arg_t);
int rotate(XEvent*, arg_t);
int zoom(XEvent*, arg_t);
int fit_to_win(XEvent*, arg_t);
int fit_to_img(XEvent*, arg_t);
#endif /* EVENTS_H */

6
image.c
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@ -16,6 +16,8 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#define _IMAGE_CONFIG
#include <unistd.h>
#include "image.h"
@ -238,7 +240,7 @@ int img_zoom_in(img_t *img, win_t *win) {
if (!img || !img->im || !win)
return 0;
for (i = 1; i < zl_cnt; ++i) {
for (i = 1; i < zl_cnt; i++) {
if (zoom_levels[i] > img->zoom * 100.0)
return img_zoom(img, win, zoom_levels[i] / 100.0);
}
@ -251,7 +253,7 @@ int img_zoom_out(img_t *img, win_t *win) {
if (!img || !img->im || !win)
return 0;
for (i = zl_cnt - 2; i >= 0; --i) {
for (i = zl_cnt - 2; i >= 0; i--) {
if (zoom_levels[i] < img->zoom * 100.0)
return img_zoom(img, win, zoom_levels[i] / 100.0);
}

650
main.c
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@ -16,32 +16,22 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#define _XOPEN_SOURCE 700
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/select.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <unistd.h>
#include <sys/stat.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include "events.h"
#include "image.h"
#include "options.h"
#include "thumbs.h"
#include "types.h"
#include "util.h"
#include "window.h"
#include "config.h"
enum { TITLE_LEN = 256, FNAME_CNT = 1024 };
void run();
enum {
TITLE_LEN = 256,
FNAME_CNT = 1024
};
appmode_t mode;
img_t img;
@ -64,6 +54,23 @@ void cleanup() {
}
}
int check_add_file(char *filename) {
if (!filename)
return 0;
if (access(filename, R_OK)) {
warn("could not open file: %s", filename);
return 0;
} else {
if (fileidx == filecnt) {
filecnt *= 2;
filenames = (char**) s_realloc(filenames, filecnt * sizeof(char*));
}
filenames[fileidx++] = filename;
return 1;
}
}
void remove_file(int n, unsigned char silent) {
if (n < 0 || n >= filecnt)
return;
@ -84,32 +91,32 @@ void remove_file(int n, unsigned char silent) {
memset(tns.thumbs + tns.cnt - 1, 0, sizeof(thumb_t));
}
--filecnt;
filecnt--;
if (n < tns.cnt)
--tns.cnt;
tns.cnt--;
}
int load_image(int new) {
void load_image(int new) {
struct stat fstats;
if (new >= 0 && new < filecnt) {
win_set_cursor(&win, CURSOR_WATCH);
img_close(&img, 0);
while (!img_load(&img, filenames[new])) {
remove_file(new, 0);
if (new >= filecnt)
new = filecnt - 1;
}
fileidx = new;
if (!stat(filenames[new], &fstats))
filesize = fstats.st_size;
else
filesize = 0;
if (new < 0 || new >= filecnt)
return;
/* cursor is reset in redraw() */
/* cursor is reset in redraw() */
win_set_cursor(&win, CURSOR_WATCH);
img_close(&img, 0);
while (!img_load(&img, filenames[new])) {
remove_file(new, 0);
if (new >= filecnt)
new = filecnt - 1;
}
return 1;
fileidx = new;
if (!stat(filenames[new], &fstats))
filesize = fstats.st_size;
else
filesize = 0;
}
void update_title() {
@ -138,23 +145,6 @@ void update_title() {
win_set_title(&win, win_title);
}
int check_append(char *filename) {
if (!filename)
return 0;
if (access(filename, R_OK)) {
warn("could not open file: %s", filename);
return 0;
} else {
if (fileidx == filecnt) {
filecnt *= 2;
filenames = (char**) s_realloc(filenames, filecnt * sizeof(char*));
}
filenames[fileidx++] = filename;
return 1;
}
}
int fncmp(const void *a, const void *b) {
return strcoll(*((char* const*) a), *((char* const*) b));
}
@ -187,20 +177,21 @@ int main(int argc, char **argv) {
filenames = (char**) s_malloc(filecnt * sizeof(char*));
fileidx = 0;
/* build file list: */
if (options->from_stdin) {
while ((len = getline(&filename, &n, stdin)) > 0) {
if (filename[len-1] == '\n')
filename[len-1] = '\0';
if (!*filename || !check_append(filename))
if (!*filename || !check_add_file(filename))
free(filename);
filename = NULL;
}
} else {
for (i = 0; i < options->filecnt; ++i) {
for (i = 0; i < options->filecnt; i++) {
filename = options->filenames[i];
if (stat(filename, &fstats) || !S_ISDIR(fstats.st_mode)) {
check_append(filename);
check_add_file(filename);
} else {
if (!options->recursive) {
warn("ignoring directory: %s", filename);
@ -212,7 +203,7 @@ int main(int argc, char **argv) {
}
start = fileidx;
while ((filename = r_readdir(&dir))) {
if (!check_append(filename))
if (!check_add_file(filename))
free((void*) filename);
}
r_closedir(&dir);
@ -252,550 +243,3 @@ int main(int argc, char **argv) {
return 0;
}
int run_command(const char *cline, Bool reload) {
int fncnt, fnlen;
char *cn, *cmdline;
const char *co, *fname;
pid_t pid;
int ret, status;
if (!cline || !*cline)
return 0;
fncnt = 0;
co = cline - 1;
while ((co = strchr(co + 1, '#')))
++fncnt;
if (!fncnt)
return 0;
ret = 0;
fname = filenames[mode == MODE_NORMAL ? fileidx : tns.sel];
fnlen = strlen(fname);
cn = cmdline = (char*) s_malloc((strlen(cline) + fncnt * (fnlen + 2)) *
sizeof(char));
/* replace all '#' with filename */
for (co = cline; *co; ++co) {
if (*co == '#') {
*cn++ = '"';
strcpy(cn, fname);
cn += fnlen;
*cn++ = '"';
} else {
*cn++ = *co;
}
}
*cn = '\0';
if ((pid = fork()) == 0) {
execlp("/bin/sh", "/bin/sh", "-c", cmdline, NULL);
warn("could not exec: /bin/sh");
exit(1);
} else if (pid < 0) {
warn("could not fork. command line was: %s", cmdline);
} else if (reload) {
waitpid(pid, &status, 0);
if (WIFEXITED(status) && WEXITSTATUS(status) == 0)
ret = 1;
else
warn("child exited with non-zero return value: %d. command line was: %s",
WEXITSTATUS(status), cmdline);
}
free(cmdline);
return ret;
}
/* event handling */
/* timeouts in milliseconds: */
enum {
TO_WIN_RESIZE = 75,
TO_IMAGE_DRAG = 1,
TO_CURSOR_HIDE = 1500,
TO_THUMBS_LOAD = 200
};
int timo_cursor;
int timo_redraw;
unsigned char drag;
int mox, moy;
void redraw() {
if (mode == MODE_NORMAL) {
img_render(&img, &win);
if (timo_cursor)
win_set_cursor(&win, CURSOR_ARROW);
else if (!drag)
win_set_cursor(&win, CURSOR_NONE);
} else {
tns_render(&tns, &win);
}
update_title();
timo_redraw = 0;
}
void on_keypress(XKeyEvent *kev) {
int x, y;
unsigned int w, h;
char key;
KeySym ksym;
int changed, ctrl;
if (!kev)
return;
XLookupString(kev, &key, 1, &ksym, NULL);
changed = 0;
ctrl = CLEANMASK(kev->state) & ControlMask;
/* external commands from commands.h */
if (EXT_COMMANDS && ctrl) {
for (x = 0; x < LEN(commands); ++x) {
if (commands[x].key == key) {
win_set_cursor(&win, CURSOR_WATCH);
if (run_command(commands[x].cmdline, commands[x].reload)) {
if (mode == MODE_NORMAL) {
if (fileidx < tns.cnt)
tns_load(&tns, fileidx, filenames[fileidx], 1);
img_close(&img, 1);
load_image(fileidx);
} else {
if (!tns_load(&tns, tns.sel, filenames[tns.sel], 0)) {
remove_file(tns.sel, 0);
tns.dirty = 1;
if (tns.sel >= tns.cnt)
tns.sel = tns.cnt - 1;
}
}
redraw();
}
if (mode == MODE_THUMBS)
win_set_cursor(&win, CURSOR_ARROW);
else if (!timo_cursor)
win_set_cursor(&win, CURSOR_NONE);
return;
}
}
}
if (mode == MODE_NORMAL) {
switch (ksym) {
/* navigate image list */
case XK_n:
case XK_space:
if (fileidx + 1 < filecnt)
changed = load_image(fileidx + 1);
break;
case XK_p:
case XK_BackSpace:
if (fileidx > 0)
changed = load_image(fileidx - 1);
break;
case XK_bracketleft:
if (fileidx != 0)
changed = load_image(MAX(0, fileidx - 10));
break;
case XK_bracketright:
if (fileidx != filecnt - 1)
changed = load_image(MIN(fileidx + 10, filecnt - 1));
break;
case XK_g:
if (fileidx != 0)
changed = load_image(0);
break;
case XK_G:
if (fileidx != filecnt - 1)
changed = load_image(filecnt - 1);
break;
/* zooming */
case XK_plus:
case XK_equal:
case XK_KP_Add:
changed = img_zoom_in(&img, &win);
break;
case XK_minus:
case XK_KP_Subtract:
changed = img_zoom_out(&img, &win);
break;
case XK_0:
case XK_KP_0:
changed = img_zoom(&img, &win, 1.0);
break;
case XK_w:
if ((changed = img_fit_win(&img, &win)))
img_center(&img, &win);
break;
/* panning */
case XK_h:
case XK_Left:
changed = img_pan(&img, &win, DIR_LEFT, ctrl);
break;
case XK_j:
case XK_Down:
changed = img_pan(&img, &win, DIR_DOWN, ctrl);
break;
case XK_k:
case XK_Up:
changed = img_pan(&img, &win, DIR_UP, ctrl);
break;
case XK_l:
case XK_Right:
changed = img_pan(&img, &win, DIR_RIGHT, ctrl);
break;
case XK_Prior:
changed = img_pan(&img, &win, DIR_UP, 1);
break;
case XK_Next:
changed = img_pan(&img, &win, DIR_DOWN, 1);
break;
case XK_H:
changed = img_pan_edge(&img, &win, DIR_LEFT);
break;
case XK_J:
changed = img_pan_edge(&img, &win, DIR_DOWN);
break;
case XK_K:
changed = img_pan_edge(&img, &win, DIR_UP);
break;
case XK_L:
changed = img_pan_edge(&img, &win, DIR_RIGHT);
break;
/* rotation */
case XK_less:
img_rotate_left(&img, &win);
changed = 1;
break;
case XK_greater:
img_rotate_right(&img, &win);
changed = 1;
break;
/* control window */
case XK_W:
x = MAX(0, win.x + img.x);
y = MAX(0, win.y + img.y);
w = img.w * img.zoom;
h = img.h * img.zoom;
if ((changed = win_moveresize(&win, x, y, w, h))) {
img.x = x - win.x;
img.y = y - win.y;
}
break;
/* switch to thumbnail mode */
case XK_Return:
if (!tns.thumbs)
tns_init(&tns, filecnt);
img_close(&img, 0);
mode = MODE_THUMBS;
win_set_cursor(&win, CURSOR_ARROW);
timo_cursor = 0;
tns.sel = fileidx;
changed = tns.dirty = 1;
break;
/* miscellaneous */
case XK_a:
img_toggle_antialias(&img);
changed = 1;
break;
case XK_A:
img.alpha ^= 1;
changed = 1;
break;
case XK_D:
remove_file(fileidx, 1);
changed = load_image(fileidx >= filecnt ? filecnt - 1 : fileidx);
break;
case XK_r:
changed = load_image(fileidx);
break;
}
} else {
/* thumbnail mode */
switch (ksym) {
/* open selected image */
case XK_Return:
load_image(tns.sel);
mode = MODE_NORMAL;
changed = 1;
break;
/* move selection */
case XK_h:
case XK_Left:
changed = tns_move_selection(&tns, &win, DIR_LEFT);
break;
case XK_j:
case XK_Down:
changed = tns_move_selection(&tns, &win, DIR_DOWN);
break;
case XK_k:
case XK_Up:
changed = tns_move_selection(&tns, &win, DIR_UP);
break;
case XK_l:
case XK_Right:
changed = tns_move_selection(&tns, &win, DIR_RIGHT);
break;
case XK_g:
if (tns.sel != 0) {
tns.sel = 0;
changed = tns.dirty = 1;
}
break;
case XK_G:
if (tns.sel != tns.cnt - 1) {
tns.sel = tns.cnt - 1;
changed = tns.dirty = 1;
}
break;
/* miscellaneous */
case XK_D:
if (tns.sel < tns.cnt) {
remove_file(tns.sel, 1);
changed = tns.dirty = 1;
if (tns.sel >= tns.cnt)
tns.sel = tns.cnt - 1;
}
break;
}
}
/* common key mappings */
switch (ksym) {
case XK_q:
cleanup();
exit(0);
case XK_f:
win_toggle_fullscreen(&win);
if (mode == MODE_NORMAL)
img.checkpan = 1;
else
tns.dirty = 1;
timo_redraw = TO_WIN_RESIZE;
break;
}
if (changed)
redraw();
}
void on_buttonpress(XButtonEvent *bev) {
int changed, sel;
unsigned int mask;
if (!bev)
return;
mask = CLEANMASK(bev->state);
changed = 0;
if (mode == MODE_NORMAL) {
if (!drag) {
win_set_cursor(&win, CURSOR_ARROW);
timo_cursor = TO_CURSOR_HIDE;
}
switch (bev->button) {
case Button1:
if (fileidx + 1 < filecnt)
changed = load_image(fileidx + 1);
break;
case Button2:
mox = bev->x;
moy = bev->y;
win_set_cursor(&win, CURSOR_HAND);
timo_cursor = 0;
drag = 1;
break;
case Button3:
if (fileidx > 0)
changed = load_image(fileidx - 1);
break;
case Button4:
if (mask == ControlMask)
changed = img_zoom_in(&img, &win);
else if (mask == ShiftMask)
changed = img_pan(&img, &win, DIR_LEFT, 0);
else
changed = img_pan(&img, &win, DIR_UP, 0);
break;
case Button5:
if (mask == ControlMask)
changed = img_zoom_out(&img, &win);
else if (mask == ShiftMask)
changed = img_pan(&img, &win, DIR_RIGHT, 0);
else
changed = img_pan(&img, &win, DIR_DOWN, 0);
break;
case 6:
changed = img_pan(&img, &win, DIR_LEFT, 0);
break;
case 7:
changed = img_pan(&img, &win, DIR_RIGHT, 0);
break;
}
} else {
/* thumbnail mode */
switch (bev->button) {
case Button1:
if ((sel = tns_translate(&tns, bev->x, bev->y)) >= 0) {
if (sel == tns.sel) {
load_image(tns.sel);
mode = MODE_NORMAL;
timo_cursor = TO_CURSOR_HIDE;
} else {
tns_highlight(&tns, &win, tns.sel, False);
tns_highlight(&tns, &win, sel, True);
tns.sel = sel;
}
changed = 1;
break;
}
break;
case Button4:
changed = tns_scroll(&tns, DIR_UP);
break;
case Button5:
changed = tns_scroll(&tns, DIR_DOWN);
break;
}
}
if (changed)
redraw();
}
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))
timo_redraw = TO_IMAGE_DRAG;
mox = mev->x;
moy = mev->y;
}
}
void run() {
int xfd, timeout;
fd_set fds;
struct timeval tt, t0, t1;
XEvent ev;
drag = 0;
timo_cursor = mode == MODE_NORMAL ? TO_CURSOR_HIDE : 0;
redraw();
while (1) {
if (mode == MODE_THUMBS && tns.cnt < filecnt) {
win_set_cursor(&win, CURSOR_WATCH);
gettimeofday(&t0, 0);
while (tns.cnt < filecnt && !XPending(win.env.dpy)) {
if (tns_load(&tns, tns.cnt, filenames[tns.cnt], 0))
++tns.cnt;
else
remove_file(tns.cnt, 0);
gettimeofday(&t1, 0);
if (TIMEDIFF(&t1, &t0) >= TO_THUMBS_LOAD)
break;
}
if (tns.cnt == filecnt)
win_set_cursor(&win, CURSOR_ARROW);
if (!XPending(win.env.dpy)) {
redraw();
continue;
} else {
timo_redraw = TO_THUMBS_LOAD;
}
} else if (timo_cursor || timo_redraw) {
gettimeofday(&t0, 0);
if (timo_cursor && timo_redraw)
timeout = MIN(timo_cursor, timo_redraw);
else if (timo_cursor)
timeout = timo_cursor;
else
timeout = timo_redraw;
MSEC_TO_TIMEVAL(timeout, &tt);
xfd = ConnectionNumber(win.env.dpy);
FD_ZERO(&fds);
FD_SET(xfd, &fds);
if (!XPending(win.env.dpy))
select(xfd + 1, &fds, 0, 0, &tt);
gettimeofday(&t1, 0);
timeout = MIN(TIMEDIFF(&t1, &t0), timeout);
/* timeouts fired? */
if (timo_cursor) {
timo_cursor = MAX(0, timo_cursor - timeout);
if (!timo_cursor)
win_set_cursor(&win, CURSOR_NONE);
}
if (timo_redraw) {
timo_redraw = MAX(0, timo_redraw - timeout);
if (!timo_redraw)
redraw();
}
if (!XPending(win.env.dpy) && (timo_cursor || timo_redraw))
continue;
}
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) {
drag = 0;
if (mode == MODE_NORMAL) {
win_set_cursor(&win, CURSOR_ARROW);
timo_cursor = TO_CURSOR_HIDE;
}
}
break;
case MotionNotify:
if (drag) {
on_motionnotify(&ev.xmotion);
} else if (mode == MODE_NORMAL) {
if (!timo_cursor)
win_set_cursor(&win, CURSOR_ARROW);
timo_cursor = TO_CURSOR_HIDE;
}
break;
case ConfigureNotify:
if (win_configure(&win, &ev.xconfigure)) {
timo_redraw = TO_WIN_RESIZE;
if (mode == MODE_NORMAL)
img.checkpan = 1;
else
tns.dirty = 1;
}
break;
case ClientMessage:
if ((Atom) ev.xclient.data.l[0] == wm_delete_win)
return;
break;
}
}
}
}

1
options.c
View file

@ -17,6 +17,7 @@
*/
#define _XOPEN_SOURCE
#define _IMAGE_CONFIG
#include <stdlib.h>
#include <string.h>

8
sxiv.1
View file

@ -150,16 +150,16 @@ Pan to top image edge.
.B L
Pan to right image edge.
.TP
.BR Ctrl-h ", " Ctrl-Left
.BR {
Pan image one window width left.
.TP
.BR Ctrl-j ", " Ctrl-Down ", " PageDn
.BR PageDn
Pan image one window height down.
.TP
.BR Ctrl-k ", " Ctrl-Up ", " PageUp
.BR PageUp
Pan image one window height up.
.TP
.BR Ctrl-l ", " Ctrl-Right
.BR }
Pan image one window width right.
.SS Rotation
.TP

10
thumbs.c
View file

@ -16,6 +16,8 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#define _THUMBS_CONFIG
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
@ -205,7 +207,7 @@ void tns_free(tns_t *tns) {
return;
if (tns->thumbs) {
for (i = 0; i < tns->cnt; ++i) {
for (i = 0; i < tns->cnt; i++) {
if (tns->thumbs[i].im) {
imlib_context_set_image(tns->thumbs[i].im);
imlib_free_image();
@ -337,7 +339,7 @@ void tns_render(tns_t *tns, win_t *win) {
tns->x = x = (win->w - MIN(cnt, tns->cols) * thumb_dim) / 2 + 5;
tns->y = y = (win->h - (cnt / tns->cols + r) * thumb_dim) / 2 + 5;
for (i = 0; i < cnt; ++i) {
for (i = 0; i < cnt; i++) {
t = &tns->thumbs[tns->first + i];
t->x = x + (THUMB_SIZE - t->w) / 2;
t->y = y + (THUMB_SIZE - t->h) / 2;
@ -391,11 +393,11 @@ int tns_move_selection(tns_t *tns, win_t *win, direction_t dir) {
switch (dir) {
case DIR_LEFT:
if (tns->sel > 0)
--tns->sel;
tns->sel--;
break;
case DIR_RIGHT:
if (tns->sel < tns->cnt - 1)
++tns->sel;
tns->sel++;
break;
case DIR_UP:
if (tns->sel >= tns->cols)

14
types.h
View file

@ -2,31 +2,25 @@
#define TYPES_H
typedef enum {
MODE_NORMAL = 0,
MODE_NORMAL,
MODE_THUMBS
} appmode_t;
typedef struct {
char key;
int reload;
const char *cmdline;
} command_t;
typedef enum {
DIR_LEFT = 0,
DIR_LEFT,
DIR_RIGHT,
DIR_UP,
DIR_DOWN
} direction_t;
typedef enum {
SCALE_DOWN = 0,
SCALE_DOWN,
SCALE_FIT,
SCALE_ZOOM
} scalemode_t;
typedef enum {
CURSOR_ARROW = 0,
CURSOR_ARROW,
CURSOR_NONE,
CURSOR_HAND,
CURSOR_WATCH

8
util.c
View file

@ -26,8 +26,10 @@
#include "options.h"
#include "util.h"
#define DNAME_CNT 512
#define FNAME_LEN 1024
enum {
DNAME_CNT = 512,
FNAME_LEN = 1024
};
void cleanup();
@ -78,7 +80,7 @@ void size_readable(float *size, const char **unit) {
const char *units[] = { "", "K", "M", "G" };
int i;
for (i = 0; i < LEN(units) && *size > 1024; ++i)
for (i = 0; i < LEN(units) && *size > 1024; i++)
*size /= 1024;
*unit = units[MIN(i, LEN(units) - 1)];
}

2
window.c
View file

@ -16,6 +16,8 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#define _WINDOW_CONFIG
#include <string.h>
#include <X11/Xutil.h>