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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 if (mode == MODE_IMAGE) {
144 remove_file(fileidx, true);
145 load_image(fileidx >= filecnt ? filecnt - 1 : fileidx);
146 return true;
147 } else if (fileidx < tns.cnt) {
148 remove_file(fileidx, true);
149 tns.dirty = true;
150 return true;
151 } else {
152 return false;
153 }
154}
155
156bool cg_first(arg_t a)
157{
158 if (mode == MODE_IMAGE && fileidx != 0) {
159 load_image(0);
160 return true;
161 } else if (mode == MODE_THUMB && fileidx != 0) {
162 fileidx = 0;
163 tns.dirty = true;
164 return true;
165 } else {
166 return false;
167 }
168}
169
170bool cg_n_or_last(arg_t a)
171{
172 int n = prefix != 0 && prefix - 1 < filecnt ? prefix - 1 : filecnt - 1;
173
174 if (mode == MODE_IMAGE && fileidx != n) {
175 load_image(n);
176 return true;
177 } else if (mode == MODE_THUMB && fileidx != n) {
178 fileidx = n;
179 tns.dirty = true;
180 return true;
181 } else {
182 return false;
183 }
184}
185
186bool cg_scroll_screen(arg_t a)
187{
188 direction_t dir = (direction_t) a;
189
190 if (mode == MODE_IMAGE)
191 return img_pan(&img, dir, -1);
192 else
193 return tns_scroll(&tns, dir, true);
194}
195
196bool cg_toggle_image_mark(arg_t a)
197{
198 files[fileidx].marked = !files[fileidx].marked;
199 markcnt += files[fileidx].marked ? 1 : -1;
200 if (mode == MODE_THUMB)
201 tns_mark(&tns, fileidx, files[fileidx].marked);
202 return true;
203}
204
205bool cg_reverse_marks(arg_t a)
206{
207 int i;
208
209 for (i = 0; i < filecnt; i++) {
210 files[i].marked = !files[i].marked;
211 markcnt += files[i].marked ? 1 : -1;
212 }
213 if (mode == MODE_THUMB)
214 tns.dirty = true;
215 return true;
216}
217
218bool cg_unmark_all(arg_t a)
219{
220 int i;
221
222 for (i = 0; i < filecnt; i++)
223 files[i].marked = false;
224 markcnt = 0;
225 if (mode == MODE_THUMB)
226 tns.dirty = true;
227 return true;
228}
229
230bool cg_navigate_marked(arg_t a)
231{
232 long n = (long) a;
233 int d, i;
234 int cnt = mode == MODE_IMAGE ? filecnt : tns.cnt, new = fileidx;
235
236 if (prefix > 0)
237 n *= prefix;
238 d = n > 0 ? 1 : -1;
239 for (i = fileidx + d; n != 0 && i >= 0 && i < cnt; i += d) {
240 if (files[i].marked) {
241 n -= d;
242 new = i;
243 }
244 }
245 if (new != fileidx) {
246 if (mode == MODE_IMAGE) {
247 load_image(new);
248 } else {
249 fileidx = new;
250 tns.dirty = true;
251 }
252 return true;
253 } else {
254 return false;
255 }
256}
257
258bool ci_navigate(arg_t a)
259{
260 long n = (long) a;
261
262 if (prefix > 0)
263 n *= prefix;
264 n += fileidx;
265 if (n < 0)
266 n = 0;
267 if (n >= filecnt)
268 n = filecnt - 1;
269
270 if (n != fileidx) {
271 load_image(n);
272 return true;
273 } else {
274 return false;
275 }
276}
277
278bool ci_alternate(arg_t a)
279{
280 load_image(alternate);
281 return true;
282}
283
284bool ci_navigate_frame(arg_t a)
285{
286 return !img.multi.animate && img_frame_navigate(&img, (long) a);
287}
288
289bool ci_toggle_animation(arg_t a)
290{
291 bool dirty = false;
292
293 img.multi.animate = !img.multi.animate;
294
295 if (img.multi.animate) {
296 dirty = img_frame_animate(&img, true);
297 set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
298 } else {
299 reset_timeout(animate);
300 }
301 return dirty;
302}
303
304bool ci_scroll(arg_t a)
305{
306 direction_t dir = (direction_t) a;
307
308 return img_pan(&img, dir, prefix);
309}
310
311bool ci_scroll_to_edge(arg_t a)
312{
313 direction_t dir = (direction_t) a;
314
315 return img_pan_edge(&img, dir);
316}
317
318/* Xlib helper function for i_drag() */
319Bool is_motionnotify(Display *d, XEvent *e, XPointer a)
320{
321 return e != NULL && e->type == MotionNotify;
322}
323
324#define WARP(x,y) \
325 XWarpPointer(win.env.dpy, None, win.xwin, 0, 0, 0, 0, x, y); \
326 ox = x, oy = y; \
327 break
328
329bool ci_drag(arg_t a)
330{
331 int dx = 0, dy = 0, i, ox, oy, x, y;
332 unsigned int ui;
333 bool dragging = true, next = false;
334 XEvent e;
335 Window w;
336
337 if (!XQueryPointer(win.env.dpy, win.xwin, &w, &w, &i, &i, &ox, &oy, &ui))
338 return false;
339
340 win_set_cursor(&win, CURSOR_HAND);
341
342 while (dragging) {
343 if (!next)
344 XMaskEvent(win.env.dpy,
345 ButtonPressMask | ButtonReleaseMask | PointerMotionMask, &e);
346 switch (e.type) {
347 case ButtonPress:
348 case ButtonRelease:
349 dragging = false;
350 break;
351 case MotionNotify:
352 x = e.xmotion.x;
353 y = e.xmotion.y;
354
355 /* wrap the mouse around */
356 if (x <= 0) {
357 WARP(win.w - 2, y);
358 } else if (x >= win.w - 1) {
359 WARP(1, y);
360 } else if (y <= 0) {
361 WARP(x, win.h - 2);
362 } else if (y >= win.h - 1) {
363 WARP(x, 1);
364 }
365 dx += x - ox;
366 dy += y - oy;
367 ox = x;
368 oy = y;
369 break;
370 }
371 if (dragging)
372 next = XCheckIfEvent(win.env.dpy, &e, is_motionnotify, None);
373 if ((!dragging || !next) && (dx != 0 || dy != 0)) {
374 if (img_move(&img, dx, dy)) {
375 img_render(&img);
376 win_draw(&win);
377 }
378 dx = dy = 0;
379 }
380 }
381 win_set_cursor(&win, CURSOR_ARROW);
382 set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
383 reset_timeout(redraw);
384
385 return true;
386}
387
388bool ci_zoom(arg_t a)
389{
390 long scale = (long) a;
391
392 if (scale > 0)
393 return img_zoom_in(&img);
394 else if (scale < 0)
395 return img_zoom_out(&img);
396 else
397 return false;
398}
399
400bool ci_set_zoom(arg_t a)
401{
402 return img_zoom(&img, (prefix ? prefix : (long) a) / 100.0);
403}
404
405bool ci_fit_to_win(arg_t a)
406{
407 scalemode_t sm = (scalemode_t) a;
408
409 return img_fit_win(&img, sm);
410}
411
412bool ci_rotate(arg_t a)
413{
414 degree_t degree = (degree_t) a;
415
416 img_rotate(&img, degree);
417 return true;
418}
419
420bool ci_flip(arg_t a)
421{
422 flipdir_t dir = (flipdir_t) a;
423
424 img_flip(&img, dir);
425 return true;
426}
427
428bool ci_change_gamma(arg_t a)
429{
430 return img_change_gamma(&img, (long) a);
431}
432
433bool ci_toggle_antialias(arg_t a)
434{
435 img_toggle_antialias(&img);
436 return true;
437}
438
439bool ci_toggle_alpha(arg_t a)
440{
441 img.alpha = !img.alpha;
442 img.dirty = true;
443 return true;
444}
445
446bool ci_slideshow(arg_t a)
447{
448 if (prefix > 0) {
449 img.ss.on = true;
450 img.ss.delay = prefix;
451 set_timeout(slideshow, img.ss.delay * 1000, true);
452 } else if (img.ss.on) {
453 img.ss.on = false;
454 reset_timeout(slideshow);
455 } else {
456 img.ss.on = true;
457 }
458 return true;
459}
460
461bool ct_move_sel(arg_t a)
462{
463 direction_t dir = (direction_t) a;
464
465 return tns_move_selection(&tns, dir, prefix);
466}
467
468bool ct_reload_all(arg_t a)
469{
470 tns_free(&tns);
471 tns_init(&tns, files, filecnt, &fileidx, &win);
472 return false;
473}
474
475
476#undef G_CMD
477#define G_CMD(c) { -1, cg_##c },
478#undef I_CMD
479#define I_CMD(c) { MODE_IMAGE, ci_##c },
480#undef T_CMD
481#define T_CMD(c) { MODE_THUMB, ct_##c },
482
483const cmd_t cmds[CMD_COUNT] = {
484#include "commands.lst"
485};
486