imlib.c

	gib_imlib_free_image_and_decache(im);
	return;
}

char *build_caption_filename(feh_file * file, short create_dir)
{
	char *caption_filename;
	char *s, *dir, *caption_dir;
	struct stat cdir_stat;
	s = strrchr(file->filename, '/');
	if (s) {
		dir = estrdup(file->filename);
		s = strrchr(dir, '/');
		*s = '\0';
	} else {
		dir = estrdup(".");
	}

	caption_dir = estrjoin("/", dir, opt.caption_path, NULL);

	D(("dir %s, cp %s, cdir %s\n", dir, opt.caption_path, caption_dir))

	if (stat(caption_dir, &cdir_stat) == -1) {
		if (!create_dir)
			return NULL;
		if (mkdir(caption_dir, 0755) == -1)
			eprintf("Failed to create caption directory %s:", caption_dir);
	} else if (!S_ISDIR(cdir_stat.st_mode))
		eprintf("Caption directory (%s) exists, but is not a directory.",
			caption_dir);

	free(caption_dir);

	caption_filename = estrjoin("", dir, "/", opt.caption_path, "/", file->name, ".txt", NULL);
	free(dir);
	return caption_filename;
}

void feh_draw_caption(winwidget w)
{
	static Imlib_Font fn = NULL;
	int tw = 0, th = 0, ww, hh;
	int x, y;
	Imlib_Image im = NULL;
	char *p;
	gib_list *lines, *l;
	static gib_style *caption_style = NULL;
	feh_file *file;

	if (!w->file) {
		return;
	}
	file = FEH_FILE(w->file->data);
	if (!file->filename) {
		return;
	}

	if (!file->caption) {
		char *caption_filename;
		caption_filename = build_caption_filename(file, 0);
		if (caption_filename)
			/* read caption from file */
			file->caption = ereadfile(caption_filename);
		else
			file->caption = estrdup("");
		free(caption_filename);
	}

	if (file->caption == NULL) {
		/* caption file is not there, we want to cache that, otherwise we'll stat
		 * the damn file every time we render the image. Reloading an image will
		 * always cause the caption to be reread though so we're safe to do so.
		 * (Before this bit was added, when zooming a captionless image with
		 * captions enabled, the captions file would be stat()d like 30 times a
		 * second) - don't forget this function is called from
		 * winwidget_render_image().
		 */
		file->caption = estrdup("");
	}

	if (*(file->caption) == '\0' && !w->caption_entry)
		return;

	caption_style = gib_style_new("caption");
	caption_style->bits = gib_list_add_front(caption_style->bits,
		gib_style_bit_new(0, 0, 0, 0, 0, 0));
	caption_style->bits = gib_list_add_front(caption_style->bits,
		gib_style_bit_new(1, 1, 0, 0, 0, 255));

	fn = feh_load_font(w);

	if (*(file->caption) == '\0') {
		p = estrdup("Caption entry mode - Hit ESC to cancel");
		lines = feh_wrap_string(p, w->w, fn, NULL);
		free(p);
	} else
		lines = feh_wrap_string(file->caption, w->w, fn, NULL);

	if (!lines)
		return;

	/* Work out how high/wide the caption is */
	l = lines;
	while (l) {
		p = (char *) l->data;
		gib_imlib_get_text_size(fn, p, caption_style, &ww, &hh, IMLIB_TEXT_TO_RIGHT);
		if (ww > tw)
			tw = ww;
		th += hh;
		if (l->next)
			th += 1;	/* line spacing */
		l = l->next;
	}

	/* we don't want the caption overlay larger than our window */
	if (th > w->h)
		th = w->h;
	if (tw > w->w)
		tw = w->w;

	im = imlib_create_image(tw, th);
	if (!im)
		eprintf("Couldn't create image. Out of memory?");

	feh_imlib_image_fill_text_bg(im, tw, th);

	l = lines;
	y = 0;
	while (l) {
		p = (char *) l->data;
		gib_imlib_get_text_size(fn, p, caption_style, &ww, &hh, IMLIB_TEXT_TO_RIGHT);
		x = (tw - ww) / 2;
		if (w->caption_entry && (*(file->caption) == '\0'))
			gib_imlib_text_draw(im, fn, caption_style, x, y, p,
				IMLIB_TEXT_TO_RIGHT, 255, 255, 127, 255);
		else if (w->caption_entry)
			gib_imlib_text_draw(im, fn, caption_style, x, y, p,
				IMLIB_TEXT_TO_RIGHT, 255, 255, 0, 255);
		else
			gib_imlib_text_draw(im, fn, caption_style, x, y, p,
				IMLIB_TEXT_TO_RIGHT, 255, 255, 255, 255);

		y += hh + 1;	/* line spacing */
		l = l->next;
	}

	gib_imlib_render_image_on_drawable(w->bg_pmap, im, (w->w - tw) / 2, w->h - th, 1, 1, 0);
	gib_imlib_free_image_and_decache(im);
	gib_list_free_and_data(lines);
	return;
}

unsigned char reset_output = 0;

void feh_display_status(char stat)
{
	static int i = 0;
	static int init_len = 0;
	int j = 0;

	D(("filelist %p, filelist->next %p\n", filelist, filelist->next));

	if (!stat) {
		putc('\n', stderr);
		init_len = 0;
		i = 0;
		return;
	}

	if (!init_len)
		init_len = gib_list_length(filelist);

	if (i) {
		if (reset_output) {
			/* There's just been an error message. Unfortunate ;) */
			for (j = 0; j < (((i % 50) + ((i % 50) / 10)) + 7); j++)
				putc(' ', stderr);
		}

		if (!(i % 50)) {
			int len = gib_list_length(filelist);

			fprintf(stderr, " %5d/%d (%d)\n[%3d%%] ",
					i, init_len, len, ((int) ((float) i / init_len * 100)));

		} else if ((!(i % 10)) && (!reset_output))
			putc(' ', stderr);

		reset_output = 0;
	} else
		fputs("[  0%] ", stderr);

	fprintf(stderr, "%c", stat);
	fflush(stderr);
	i++;
	return;
}

void feh_edit_inplace(winwidget w, int op)
{
	int tmp;
	Imlib_Image old = NULL;
	Imlib_Load_Error err = IMLIB_LOAD_ERROR_NONE;
	if (!w->file || !w->file->data || !FEH_FILE(w->file->data)->filename)
		return;

	if (!opt.edit) {
		imlib_context_set_image(w->im);
		if (op == INPLACE_EDIT_FLIP)
			imlib_image_flip_vertical();
		else if (op == INPLACE_EDIT_MIRROR)
			imlib_image_flip_horizontal();
		else {
			imlib_image_orientate(op);
			tmp = w->im_w;
			w->im_w = w->im_h;
			w->im_h = tmp;
			if (FEH_FILE(w->file->data)->info) {
				FEH_FILE(w->file->data)->info->width = w->im_w;
				FEH_FILE(w->file->data)->info->height = w->im_h;
			}
		}
		winwidget_render_image(w, 1, 0);
		return;
	}

	if (!strcmp(gib_imlib_image_format(w->im), "jpeg") &&
			!path_is_url(FEH_FILE(w->file->data)->filename)) {
		feh_edit_inplace_lossless(w, op);
		feh_reload_image(w, 1, 1);
		return;
	}

	old = imlib_load_image_with_error_return(FEH_FILE(w->file->data)->filename, &err);

	if ((old != NULL) && (err == IMLIB_LOAD_ERROR_NONE)) {
		imlib_context_set_image(old);
		if (op == INPLACE_EDIT_FLIP)
			imlib_image_flip_vertical();
		else if (op == INPLACE_EDIT_MIRROR)
			imlib_image_flip_horizontal();
		else
			imlib_image_orientate(op);
		gib_imlib_save_image_with_error_return(old,
			FEH_FILE(w->file->data)->filename, &err);
		gib_imlib_free_image(old);
		if (err)
			feh_imlib_print_load_error(FEH_FILE(w->file->data)->filename,
				w, err);
		feh_reload_image(w, 1, 1);
	} else {
		/*
		 * Image was opened using curl/magick or has been deleted after
		 * opening it
		 */
		imlib_context_set_image(w->im);
		if (op == INPLACE_EDIT_FLIP)
			imlib_image_flip_vertical();
		else if (op == INPLACE_EDIT_MIRROR)
			imlib_image_flip_horizontal();
		else {
			imlib_image_orientate(op);
			tmp = w->im_w;
			w->im_w = w->im_h;
			w->im_h = tmp;
			if (FEH_FILE(w->file->data)->info) {
				FEH_FILE(w->file->data)->info->width = w->im_w;
				FEH_FILE(w->file->data)->info->height = w->im_h;
			}
		}
		im_weprintf(w, "unable to edit in place. Changes have not been saved.");
		winwidget_render_image(w, 1, 0);
	}

	return;
}

gib_list *feh_wrap_string(char *text, int wrap_width, Imlib_Font fn, gib_style * style)
{
	gib_list *ll, *lines = NULL, *list = NULL, *words;
	gib_list *l = NULL;
	char delim[2] = { '\n', '\0' };
	int w, line_width;
	int tw, th;
	char *p, *pp;
	char *line = NULL;
	char *temp;
	int space_width = 0, m_width = 0, t_width = 0, new_width = 0;

	lines = gib_string_split(text, delim);

	if (wrap_width) {
		gib_imlib_get_text_size(fn, "M M", style, &t_width, NULL, IMLIB_TEXT_TO_RIGHT);
		gib_imlib_get_text_size(fn, "M", style, &m_width, NULL, IMLIB_TEXT_TO_RIGHT);
		space_width = t_width - (2 * m_width);
		w = wrap_width;
		l = lines;
		while (l) {
			line_width = 0;
			p = (char *) l->data;
			/* quick check to see if whole line fits okay */
			gib_imlib_get_text_size(fn, p, style, &tw, &th, IMLIB_TEXT_TO_RIGHT);
			if (tw <= w) {
				list = gib_list_add_end(list, estrdup(p));
			} else if (strlen(p) == 0) {
				list = gib_list_add_end(list, estrdup(""));
			} else if (!strcmp(p, " ")) {
				list = gib_list_add_end(list, estrdup(" "));
			} else {
				words = gib_string_split(p, " ");
				if (words) {
					ll = words;
					while (ll) {
						pp = (char *) ll->data;
						if (strcmp(pp, " ")) {
							gib_imlib_get_text_size
							    (fn, pp, style, &tw, &th, IMLIB_TEXT_TO_RIGHT);
							if (line_width == 0)
								new_width = tw;
							else
								new_width = line_width + space_width + tw;
							if (new_width <= w) {
								/* add word to line */
								if (line) {
									int len;

									len = strlen(line)
									    + strlen(pp)
									    + 2;
									temp = emalloc(len);
									snprintf(temp, len, "%s %s", line, pp);
									free(line);
									line = temp;
								} else {
									line = estrdup(pp);
								}
								line_width = new_width;
							} else if (line_width == 0) {
								/* can't fit single word in :/
								   increase width limit to width of word
								   and jam the bastard in anyhow */
								w = tw;
								line = estrdup(pp);
								line_width = new_width;
							} else {
								/* finish this line, start next and add word there */
								if (line) {
									list = gib_list_add_end(list, estrdup(line));
									free(line);
									line = NULL;
								}
								line = estrdup(pp);
								line_width = tw;
							}
						}
						ll = ll->next;
					}
					if (line) {
						/* finish last line */
						list = gib_list_add_end(list, estrdup(line));
						free(line);
						line = NULL;
					}
					gib_list_free_and_data(words);
				}
			}
			l = l->next;
		}
		gib_list_free_and_data(lines);
		lines = list;
	}
	return lines;
}

void feh_edit_inplace_lossless(winwidget w, int op)
{
	char *filename = FEH_FILE(w->file->data)->filename;
	int len = strlen(filename) + 1;
	char *file_str = emalloc(len);
	int pid, status;
	int devnull = -1;
	char op_name[]  = "rotate";     /* message */
	char op_op[]    = "-rotate";    /* jpegtran option */
	char op_value[] = "horizontal"; /* jpegtran option's value */

	if (op == INPLACE_EDIT_FLIP) {
		sprintf(op_name,  "flip");
		sprintf(op_op,    "-flip");
		sprintf(op_value, "vertical");
	} else if (op == INPLACE_EDIT_MIRROR) {
		sprintf(op_name,  "mirror");
		sprintf(op_op,    "-flip");
	} else
		snprintf(op_value, 4, "%d", 90 * op);

	snprintf(file_str, len, "%s", filename);

	if ((pid = fork()) < 0) {
		im_weprintf(w, "lossless %s: fork failed:", op_name);
		free(file_str);
		return;
	}
	else if (pid == 0) {

		execlp("jpegtran", "jpegtran", "-copy", "all", op_op, op_value,
				"-outfile", file_str, file_str, NULL);

		weprintf("lossless %s: Is 'jpegtran' installed? Failed to exec:", op_name);
		_exit(1);
	}
	else {
		waitpid(pid, &status, 0);

		if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
			im_weprintf(w,
					"lossless %s: Got exitcode %d from jpegtran."
					" Commandline was: "
					"jpegtran -copy all %s %s -outfile %s %s",
					op_name, status >> 8, op_op, op_value, file_str, file_str);
			free(file_str);
			return;
		}
	}
	if ((pid = fork()) < 0) {
		im_weprintf(w, "lossless %s: fork failed while updating EXIF tags:", op_name);
	}
	else if (pid == 0) {

		/* discard normal output */
		devnull = open("/dev/null", O_WRONLY);
		dup2(devnull, 1);

		execlp("jpegexiforient", "jpegexiforient", "-1", file_str, NULL);
		weprintf("lossless %s: Failed to exec jpegexiforient:", op_name);
		_exit(1);
	}
	else {
		waitpid(pid, &status, 0);

		if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
			im_weprintf(w,
					"lossless %s: Failed to update EXIF orientation tag:"
					" jpegexiforient returned %d",
					op_name, status >> 8);
		}
	}
	free(file_str);
}

void feh_draw_actions(winwidget w)
{
	static Imlib_Font fn = NULL;
	int tw = 0, th = 0;
	int th_offset = 0;
	int max_tw = 0;
	int line_th = 0;
	Imlib_Image im = NULL;
	int i = 0;
	int num_actions = 0;
	int cur_action = 0;
	char index[3];
	char *line;

	/* Count number of defined actions. This method sucks a bit since it needs
	 * to be changed if the number of actions changes, but at least it doesn't
	 * miss actions 2 to 9 if action1 isn't defined
	 */
	for (i = 0; i < 10; i++) {
		if (opt.actions[i])
			num_actions++;
	}

	if (num_actions == 0)
		return;

	if ((!w->file) || (!FEH_FILE(w->file->data))
			|| (!FEH_FILE(w->file->data)->filename))
		return;

	fn = feh_load_font(w);

	gib_imlib_get_text_size(fn, "defined actions:", NULL, &tw, &th, IMLIB_TEXT_TO_RIGHT);
/* Check for the widest line */
	max_tw = tw;

	for (i = 0; i < 10; i++) {
		if (opt.actions[i]) {
			line = emalloc(strlen(opt.action_titles[i]) + 5);
			strcpy(line, "0: ");
			line = strcat(line, opt.action_titles[i]);
			gib_imlib_get_text_size(fn, line, NULL, &tw, &th, IMLIB_TEXT_TO_RIGHT);
			free(line);
			if (tw > max_tw)
				max_tw = tw;
		}
	}

	tw = max_tw;
	tw += 3;
	th += 3;
	line_th = th;
	th = (th * num_actions) + line_th;

	/* This depends on feh_draw_filename internals...
	 * should be fixed some time
	 */
	if (opt.draw_filename)
		th_offset = line_th * 2;

	im = imlib_create_image(tw, th);
	if (!im)
		eprintf("Couldn't create image. Out of memory?");

	feh_imlib_image_fill_text_bg(im, tw, th);

	gib_imlib_text_draw(im, fn, NULL, 2, 2, "defined actions:", IMLIB_TEXT_TO_RIGHT, 0, 0, 0, 255);
	gib_imlib_text_draw(im, fn, NULL, 1, 1, "defined actions:", IMLIB_TEXT_TO_RIGHT, 255, 255, 255, 255);

	for (i = 0; i < 10; i++) {
		if (opt.action_titles[i]) {
			cur_action++;
			line = emalloc(strlen(opt.action_titles[i]) + 5);
			sprintf(index, "%d", i);
			strcpy(line, index);
			strcat(line, ": ");
			strcat(line, opt.action_titles[i]);

			gib_imlib_text_draw(im, fn, NULL, 2,
					(cur_action * line_th) + 2, line,
					IMLIB_TEXT_TO_RIGHT, 0, 0, 0, 255);
			gib_imlib_text_draw(im, fn, NULL, 1,
					(cur_action * line_th) + 1, line,
					IMLIB_TEXT_TO_RIGHT, 255, 255, 255, 255);
			free(line);
		}
	}

	gib_imlib_render_image_on_drawable(w->bg_pmap, im, 0, 0 + th_offset, 1, 1, 0);

	gib_imlib_free_image_and_decache(im);
	return;
}