438 lines
8.9 KiB
C
438 lines
8.9 KiB
C
/* sxiv: commands.c
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* Copyright (c) 2012 Bert Muennich <be.muennich at googlemail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#define _POSIX_C_SOURCE 200112L
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#define _IMAGE_CONFIG
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#include "commands.h"
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#include "image.h"
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#include "thumbs.h"
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#include "util.h"
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#include "config.h"
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void cleanup(void);
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void remove_file(int, bool);
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void load_image(int);
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void redraw(void);
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void reset_cursor(void);
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void animate(void);
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void set_timeout(timeout_f, int, bool);
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void reset_timeout(timeout_f);
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extern appmode_t mode;
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extern img_t img;
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extern tns_t tns;
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extern win_t win;
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extern fileinfo_t *files;
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extern int filecnt, fileidx;
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extern int prefix;
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const int ss_delays[] = {
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1, 2, 3, 5, 10, 15, 20, 30, 60, 120, 180, 300, 600
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};
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bool it_quit(arg_t a) {
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cleanup();
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exit(EXIT_SUCCESS);
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}
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bool it_switch_mode(arg_t a) {
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if (mode == MODE_IMAGE) {
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if (tns.thumbs == NULL)
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tns_init(&tns, filecnt, &win);
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img_close(&img, false);
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reset_timeout(reset_cursor);
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tns.sel = fileidx;
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tns.dirty = true;
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mode = MODE_THUMB;
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} else {
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load_image(tns.sel);
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mode = MODE_IMAGE;
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}
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return true;
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}
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bool it_toggle_fullscreen(arg_t a) {
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win_toggle_fullscreen(&win);
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/* redraw after next ConfigureNotify event */
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set_timeout(redraw, TO_REDRAW_RESIZE, false);
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if (mode == MODE_IMAGE)
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img.checkpan = true;
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else
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tns.dirty = true;
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return false;
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}
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bool it_toggle_bar(arg_t a) {
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win_toggle_bar(&win);
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if (mode == MODE_IMAGE)
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img.checkpan = img.dirty = true;
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else
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tns.dirty = true;
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return true;
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}
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bool it_reload_image(arg_t a) {
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if (mode == MODE_IMAGE) {
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load_image(fileidx);
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} else {
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win_set_cursor(&win, CURSOR_WATCH);
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if (!tns_load(&tns, tns.sel, &files[tns.sel], true, false)) {
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remove_file(tns.sel, false);
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tns.dirty = true;
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if (tns.sel >= tns.cnt)
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tns.sel = tns.cnt - 1;
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}
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}
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return true;
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}
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bool it_remove_image(arg_t a) {
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if (mode == MODE_IMAGE) {
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remove_file(fileidx, true);
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load_image(fileidx >= filecnt ? filecnt - 1 : fileidx);
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return true;
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} else if (tns.sel < tns.cnt) {
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remove_file(tns.sel, true);
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tns.dirty = true;
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if (tns.sel >= tns.cnt)
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tns.sel = tns.cnt - 1;
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return true;
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} else {
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return false;
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}
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}
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bool i_navigate(arg_t a) {
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long n = (long) a;
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if (mode == MODE_IMAGE) {
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if (prefix > 0)
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n *= prefix;
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n += fileidx;
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if (n < 0)
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n = 0;
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if (n >= filecnt)
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n = filecnt - 1;
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if (n != fileidx) {
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load_image(n);
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return true;
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}
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}
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return false;
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}
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bool it_first(arg_t a) {
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if (mode == MODE_IMAGE && fileidx != 0) {
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load_image(0);
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return true;
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} else if (mode == MODE_THUMB && tns.sel != 0) {
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tns.sel = 0;
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tns.dirty = true;
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return true;
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} else {
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return false;
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}
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}
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bool it_n_or_last(arg_t a) {
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int n = prefix != 0 && prefix - 1 < filecnt ? prefix - 1 : filecnt - 1;
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if (mode == MODE_IMAGE && fileidx != n) {
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load_image(n);
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return true;
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} else if (mode == MODE_THUMB && tns.sel != n) {
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tns.sel = n;
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tns.dirty = true;
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return true;
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} else {
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return false;
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}
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}
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bool i_navigate_frame(arg_t a) {
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if (mode == MODE_IMAGE && !img.multi.animate)
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return img_frame_navigate(&img, (long) a);
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else
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return false;
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}
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bool i_toggle_animation(arg_t a) {
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if (mode != MODE_IMAGE)
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return false;
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if (img.multi.animate) {
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reset_timeout(animate);
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img.multi.animate = false;
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} else if (img_frame_animate(&img, true)) {
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set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
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}
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return true;
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}
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bool it_scroll_move(arg_t a) {
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direction_t dir = (direction_t) a;
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if (mode == MODE_IMAGE)
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return img_pan(&img, dir, prefix);
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else
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return tns_move_selection(&tns, dir);
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}
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bool it_scroll_screen(arg_t a) {
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direction_t dir = (direction_t) a;
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if (mode == MODE_IMAGE)
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return img_pan(&img, dir, -1);
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else
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return tns_scroll(&tns, dir, true);
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}
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bool i_scroll_to_edge(arg_t a) {
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direction_t dir = (direction_t) a;
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if (mode == MODE_IMAGE)
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return img_pan_edge(&img, dir);
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else
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return false;
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}
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/* Xlib helper function for i_drag() */
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Bool is_motionnotify(Display *d, XEvent *e, XPointer a) {
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return e != NULL && e->type == MotionNotify;
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}
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bool i_drag(arg_t a) {
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int dx = 0, dy = 0, i, ox, oy, x, y;
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unsigned int ui;
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bool dragging = true, next = false;
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XEvent e;
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Window w;
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if (mode != MODE_IMAGE)
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return false;
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if (!XQueryPointer(win.env.dpy, win.xwin, &w, &w, &i, &i, &ox, &oy, &ui))
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return false;
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win_set_cursor(&win, CURSOR_HAND);
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while (dragging) {
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if (!next)
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XMaskEvent(win.env.dpy,
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ButtonPressMask | ButtonReleaseMask | PointerMotionMask, &e);
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switch (e.type) {
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case ButtonPress:
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case ButtonRelease:
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dragging = false;
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break;
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case MotionNotify:
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x = e.xmotion.x;
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y = e.xmotion.y;
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if (x >= 0 && x <= win.w && y >= 0 && y <= win.h) {
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dx += x - ox;
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dy += y - oy;
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}
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ox = x;
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oy = y;
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break;
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}
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if (dragging)
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next = XCheckIfEvent(win.env.dpy, &e, is_motionnotify, None);
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if ((!dragging || !next) && (dx != 0 || dy != 0)) {
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if (img_move(&img, dx, dy)) {
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img_render(&img);
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win_draw(&win);
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}
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dx = dy = 0;
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}
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}
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win_set_cursor(&win, CURSOR_ARROW);
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set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
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reset_timeout(redraw);
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return false;
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}
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bool i_zoom(arg_t a) {
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long scale = (long) a;
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if (mode != MODE_IMAGE)
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return false;
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if (scale > 0)
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return img_zoom_in(&img);
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else if (scale < 0)
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return img_zoom_out(&img);
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else
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return false;
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}
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bool i_set_zoom(arg_t a) {
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if (mode == MODE_IMAGE)
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return img_zoom(&img, (prefix ? prefix : (long) a) / 100.0);
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else
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return false;
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}
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bool i_fit_to_win(arg_t a) {
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bool ret = false;
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if (mode == MODE_IMAGE) {
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if ((ret = img_fit_win(&img)))
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img_center(&img);
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}
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return ret;
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}
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bool i_fit_to_img(arg_t a) {
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int x, y;
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unsigned int w, h;
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bool ret = false;
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if (mode == MODE_IMAGE) {
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x = MAX(0, win.x + img.x);
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y = MAX(0, win.y + img.y);
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w = img.w * img.zoom;
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h = img.h * img.zoom;
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if ((ret = win_moveresize(&win, x, y, w, h))) {
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img.x = x - win.x;
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img.y = y - win.y;
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img.dirty = true;
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}
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}
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return ret;
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}
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bool i_rotate(arg_t a) {
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direction_t dir = (direction_t) a;
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if (mode == MODE_IMAGE) {
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if (dir == DIR_LEFT) {
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img_rotate_left(&img);
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return true;
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} else if (dir == DIR_RIGHT) {
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img_rotate_right(&img);
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return true;
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}
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}
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return false;
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}
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bool i_flip(arg_t a) {
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flipdir_t dir = (flipdir_t) a;
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if (mode == MODE_IMAGE) {
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img_flip(&img, dir);
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return true;
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} else {
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return false;
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}
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}
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bool i_toggle_antialias(arg_t a) {
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if (mode == MODE_IMAGE) {
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img_toggle_antialias(&img);
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return true;
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} else {
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return false;
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}
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}
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bool it_toggle_alpha(arg_t a) {
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img.alpha = tns.alpha = !img.alpha;
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if (mode == MODE_IMAGE)
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img.dirty = true;
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else
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tns.dirty = true;
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return true;
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}
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bool it_open_with(arg_t a) {
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const char *prog = (const char*) a;
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pid_t pid;
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if (prog == NULL || *prog == '\0')
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return false;
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if ((pid = fork()) == 0) {
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execlp(prog, prog,
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files[mode == MODE_IMAGE ? fileidx : tns.sel].path, NULL);
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warn("could not exec: %s", prog);
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exit(EXIT_FAILURE);
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} else if (pid < 0) {
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warn("could not fork. program was: %s", prog);
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}
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return false;
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}
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bool it_shell_cmd(arg_t a) {
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int n, status;
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const char *cmdline = (const char*) a;
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pid_t pid;
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if (cmdline == NULL || *cmdline == '\0')
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return false;
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n = mode == MODE_IMAGE ? fileidx : tns.sel;
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if (setenv("SXIV_IMG", files[n].path, 1) < 0) {
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warn("could not set env.-variable: SXIV_IMG. command line was: %s",
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cmdline);
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return false;
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}
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if ((pid = fork()) == 0) {
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execl("/bin/sh", "/bin/sh", "-c", cmdline, NULL);
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warn("could not exec: /bin/sh. command line was: %s", cmdline);
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exit(EXIT_FAILURE);
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} else if (pid < 0) {
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warn("could not fork. command line was: %s", cmdline);
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return false;
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}
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win_set_cursor(&win, CURSOR_WATCH);
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waitpid(pid, &status, 0);
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if (WIFEXITED(status) == 0 || WEXITSTATUS(status) != 0)
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warn("child exited with non-zero return value: %d. command line was: %s",
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WEXITSTATUS(status), cmdline);
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if (mode == MODE_IMAGE) {
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img_close(&img, true);
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load_image(fileidx);
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}
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if (!tns_load(&tns, n, &files[n], true, mode == MODE_IMAGE) &&
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mode == MODE_THUMB)
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{
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remove_file(tns.sel, false);
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tns.dirty = true;
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if (tns.sel >= tns.cnt)
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tns.sel = tns.cnt - 1;
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}
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return true;
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}
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