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nsxivcommands.c

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1/* Copyright 2011, 2012, 2014 Bert Muennich
2 *
3 * This file is part of sxiv.
4 *
5 * sxiv is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published
7 * by the Free Software Foundation; either version 2 of the License,
8 * or (at your option) any later version.
9 *
10 * sxiv is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with sxiv. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19#define _POSIX_C_SOURCE 200112L
20#define _IMAGE_CONFIG
21
22#include <stdlib.h>
23#include <string.h>
24#include <unistd.h>
25#include <sys/wait.h>
26
27#include "commands.h"
28#include "image.h"
29#include "options.h"
30#include "thumbs.h"
31#include "util.h"
32#include "config.h"
33
34void cleanup(void);
35void remove_file(int, bool);
36void load_image(int);
37void open_info(void);
38void redraw(void);
39void reset_cursor(void);
40void animate(void);
41void slideshow(void);
42void set_timeout(timeout_f, int, bool);
43void reset_timeout(timeout_f);
44
45extern appmode_t mode;
46extern img_t img;
47extern tns_t tns;
48extern win_t win;
49
50extern fileinfo_t *files;
51extern int filecnt, fileidx;
52extern int alternate;
53extern int markcnt;
54
55extern int prefix;
56extern bool extprefix;
57
58const int ss_delays[] = {
59 1, 2, 3, 5, 10, 15, 20, 30, 60, 120, 180, 300, 600
60};
61
62bool cg_quit(arg_t a)
63{
64 unsigned int i;
65
66 if (options->to_stdout && markcnt > 0) {
67 for (i = 0; i < filecnt; i++) {
68 if (files[i].marked)
69 printf("%s\n", files[i].name);
70 }
71 }
72 cleanup();
73 exit(EXIT_SUCCESS);
74}
75
76bool cg_switch_mode(arg_t a)
77{
78 if (mode == MODE_IMAGE) {
79 if (tns.thumbs == NULL)
80 tns_init(&tns, files, &filecnt, &fileidx, &win);
81 img_close(&img, false);
82 reset_timeout(reset_cursor);
83 if (img.ss.on) {
84 img.ss.on = false;
85 reset_timeout(slideshow);
86 }
87 tns.dirty = true;
88 mode = MODE_THUMB;
89 } else {
90 load_image(fileidx);
91 mode = MODE_IMAGE;
92 }
93 return true;
94}
95
96bool cg_toggle_fullscreen(arg_t a)
97{
98 win_toggle_fullscreen(&win);
99 /* redraw after next ConfigureNotify event */
100 set_timeout(redraw, TO_REDRAW_RESIZE, false);
101 if (mode == MODE_IMAGE)
102 img.checkpan = img.dirty = true;
103 else
104 tns.dirty = true;
105 return false;
106}
107
108bool cg_toggle_bar(arg_t a)
109{
110 win_toggle_bar(&win);
111 if (mode == MODE_IMAGE) {
112 img.checkpan = img.dirty = true;
113 if (win.bar.h > 0)
114 open_info();
115 } else {
116 tns.dirty = true;
117 }
118 return true;
119}
120
121bool cg_prefix_external(arg_t a)
122{
123 extprefix = true;
124 return false;
125}
126
127bool cg_reload_image(arg_t a)
128{
129 if (mode == MODE_IMAGE) {
130 load_image(fileidx);
131 } else {
132 win_set_cursor(&win, CURSOR_WATCH);
133 if (!tns_load(&tns, fileidx, true)) {
134 remove_file(fileidx, false);
135 tns.dirty = true;
136 }
137 }
138 return true;
139}
140
141bool cg_remove_image(arg_t a)
142{
143 remove_file(fileidx, true);
144 if (mode == MODE_IMAGE)
145 load_image(fileidx);
146 else
147 tns.dirty = true;
148 return true;
149}
150
151bool cg_first(arg_t a)
152{
153 if (mode == MODE_IMAGE && fileidx != 0) {
154 load_image(0);
155 return true;
156 } else if (mode == MODE_THUMB && fileidx != 0) {
157 fileidx = 0;
158 tns.dirty = true;
159 return true;
160 } else {
161 return false;
162 }
163}
164
165bool cg_n_or_last(arg_t a)
166{
167 int n = prefix != 0 && prefix - 1 < filecnt ? prefix - 1 : filecnt - 1;
168
169 if (mode == MODE_IMAGE && fileidx != n) {
170 load_image(n);
171 return true;
172 } else if (mode == MODE_THUMB && fileidx != n) {
173 fileidx = n;
174 tns.dirty = true;
175 return true;
176 } else {
177 return false;
178 }
179}
180
181bool cg_scroll_screen(arg_t a)
182{
183 direction_t dir = (direction_t) a;
184
185 if (mode == MODE_IMAGE)
186 return img_pan(&img, dir, -1);
187 else
188 return tns_scroll(&tns, dir, true);
189}
190
191bool cg_zoom(arg_t a)
192{
193 long d = (long) a;
194
195 if (mode == MODE_THUMB)
196 return tns_zoom(&tns, d);
197 else if (d > 0)
198 return img_zoom_in(&img);
199 else if (d < 0)
200 return img_zoom_out(&img);
201 else
202 return false;
203}
204
205bool cg_toggle_image_mark(arg_t a)
206{
207 files[fileidx].marked = !files[fileidx].marked;
208 markcnt += files[fileidx].marked ? 1 : -1;
209 if (mode == MODE_THUMB)
210 tns_mark(&tns, fileidx, files[fileidx].marked);
211 return true;
212}
213
214bool cg_reverse_marks(arg_t a)
215{
216 int i;
217
218 for (i = 0; i < filecnt; i++) {
219 files[i].marked = !files[i].marked;
220 markcnt += files[i].marked ? 1 : -1;
221 }
222 if (mode == MODE_THUMB)
223 tns.dirty = true;
224 return true;
225}
226
227bool cg_unmark_all(arg_t a)
228{
229 int i;
230
231 for (i = 0; i < filecnt; i++)
232 files[i].marked = false;
233 markcnt = 0;
234 if (mode == MODE_THUMB)
235 tns.dirty = true;
236 return true;
237}
238
239bool cg_navigate_marked(arg_t a)
240{
241 long n = (long) a;
242 int d, i;
243 int new = fileidx;
244
245 if (prefix > 0)
246 n *= prefix;
247 d = n > 0 ? 1 : -1;
248 for (i = fileidx + d; n != 0 && i >= 0 && i < filecnt; i += d) {
249 if (files[i].marked) {
250 n -= d;
251 new = i;
252 }
253 }
254 if (new != fileidx) {
255 if (mode == MODE_IMAGE) {
256 load_image(new);
257 } else {
258 fileidx = new;
259 tns.dirty = true;
260 }
261 return true;
262 } else {
263 return false;
264 }
265}
266
267bool ci_navigate(arg_t a)
268{
269 long n = (long) a;
270
271 if (prefix > 0)
272 n *= prefix;
273 n += fileidx;
274 if (n < 0)
275 n = 0;
276 if (n >= filecnt)
277 n = filecnt - 1;
278
279 if (n != fileidx) {
280 load_image(n);
281 return true;
282 } else {
283 return false;
284 }
285}
286
287bool ci_alternate(arg_t a)
288{
289 load_image(alternate);
290 return true;
291}
292
293bool ci_navigate_frame(arg_t a)
294{
295 return !img.multi.animate && img_frame_navigate(&img, (long) a);
296}
297
298bool ci_toggle_animation(arg_t a)
299{
300 bool dirty = false;
301
302 if (img.multi.cnt > 0) {
303 img.multi.animate = !img.multi.animate;
304 if (img.multi.animate) {
305 dirty = img_frame_animate(&img);
306 set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
307 } else {
308 reset_timeout(animate);
309 }
310 }
311 return dirty;
312}
313
314bool ci_scroll(arg_t a)
315{
316 direction_t dir = (direction_t) a;
317
318 return img_pan(&img, dir, prefix);
319}
320
321bool ci_scroll_to_edge(arg_t a)
322{
323 direction_t dir = (direction_t) a;
324
325 return img_pan_edge(&img, dir);
326}
327
328/* Xlib helper function for i_drag() */
329Bool is_motionnotify(Display *d, XEvent *e, XPointer a)
330{
331 return e != NULL && e->type == MotionNotify;
332}
333
334#define WARP(x,y) \
335 XWarpPointer(win.env.dpy, None, win.xwin, 0, 0, 0, 0, x, y); \
336 ox = x, oy = y; \
337 break
338
339bool ci_drag(arg_t a)
340{
341 int dx = 0, dy = 0, i, ox, oy, x, y;
342 unsigned int ui;
343 bool dragging = true, next = false;
344 XEvent e;
345 Window w;
346
347 if (!XQueryPointer(win.env.dpy, win.xwin, &w, &w, &i, &i, &ox, &oy, &ui))
348 return false;
349
350 win_set_cursor(&win, CURSOR_HAND);
351
352 while (dragging) {
353 if (!next)
354 XMaskEvent(win.env.dpy,
355 ButtonPressMask | ButtonReleaseMask | PointerMotionMask, &e);
356 switch (e.type) {
357 case ButtonPress:
358 case ButtonRelease:
359 dragging = false;
360 break;
361 case MotionNotify:
362 x = e.xmotion.x;
363 y = e.xmotion.y;
364
365 /* wrap the mouse around */
366 if (x <= 0) {
367 WARP(win.w - 2, y);
368 } else if (x >= win.w - 1) {
369 WARP(1, y);
370 } else if (y <= 0) {
371 WARP(x, win.h - 2);
372 } else if (y >= win.h - 1) {
373 WARP(x, 1);
374 }
375 dx += x - ox;
376 dy += y - oy;
377 ox = x;
378 oy = y;
379 break;
380 }
381 if (dragging)
382 next = XCheckIfEvent(win.env.dpy, &e, is_motionnotify, None);
383 if ((!dragging || !next) && (dx != 0 || dy != 0)) {
384 if (img_move(&img, dx, dy)) {
385 img_render(&img);
386 win_draw(&win);
387 }
388 dx = dy = 0;
389 }
390 }
391 win_set_cursor(&win, CURSOR_ARROW);
392 set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
393 reset_timeout(redraw);
394
395 return true;
396}
397
398bool ci_set_zoom(arg_t a)
399{
400 return img_zoom(&img, (prefix ? prefix : (long) a) / 100.0);
401}
402
403bool ci_fit_to_win(arg_t a)
404{
405 scalemode_t sm = (scalemode_t) a;
406
407 return img_fit_win(&img, sm);
408}
409
410bool ci_rotate(arg_t a)
411{
412 degree_t degree = (degree_t) a;
413
414 img_rotate(&img, degree);
415 return true;
416}
417
418bool ci_flip(arg_t a)
419{
420 flipdir_t dir = (flipdir_t) a;
421
422 img_flip(&img, dir);
423 return true;
424}
425
426bool ci_change_gamma(arg_t a)
427{
428 return img_change_gamma(&img, (long) a);
429}
430
431bool ci_toggle_antialias(arg_t a)
432{
433 img_toggle_antialias(&img);
434 return true;
435}
436
437bool ci_toggle_alpha(arg_t a)
438{
439 img.alpha = !img.alpha;
440 img.dirty = true;
441 return true;
442}
443
444bool ci_slideshow(arg_t a)
445{
446 if (prefix > 0) {
447 img.ss.on = true;
448 img.ss.delay = prefix;
449 set_timeout(slideshow, img.ss.delay * 1000, true);
450 } else if (img.ss.on) {
451 img.ss.on = false;
452 reset_timeout(slideshow);
453 } else {
454 img.ss.on = true;
455 }
456 return true;
457}
458
459bool ct_move_sel(arg_t a)
460{
461 direction_t dir = (direction_t) a;
462
463 return tns_move_selection(&tns, dir, prefix);
464}
465
466bool ct_reload_all(arg_t a)
467{
468 tns_free(&tns);
469 tns_init(&tns, files, &filecnt, &fileidx, &win);
470 tns.dirty = true;
471 return true;
472}
473
474
475#undef G_CMD
476#define G_CMD(c) { -1, cg_##c },
477#undef I_CMD
478#define I_CMD(c) { MODE_IMAGE, ci_##c },
479#undef T_CMD
480#define T_CMD(c) { MODE_THUMB, ct_##c },
481
482const cmd_t cmds[CMD_COUNT] = {
483#include "commands.lst"
484};
485