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    /* $OpenBSD: cmd-resize-pane.c,v 1.31 2017/05/11 07:24:42 nicm Exp $ */  | 
    
    
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    /*  | 
    
    
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     * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>  | 
    
    
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     *  | 
    
    
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     * Permission to use, copy, modify, and distribute this software for any  | 
    
    
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     * purpose with or without fee is hereby granted, provided that the above  | 
    
    
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     * copyright notice and this permission notice appear in all copies.  | 
    
    
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     *  | 
    
    
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     * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES  | 
    
    
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     * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF  | 
    
    
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     * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR  | 
    
    
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     * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES  | 
    
    
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     * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER  | 
    
    
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     * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING  | 
    
    
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     * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  | 
    
    
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     */  | 
    
    
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    #include <sys/types.h>  | 
    
    
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    #include <stdlib.h>  | 
    
    
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    #include "tmux.h"  | 
    
    
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    /*  | 
    
    
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     * Increase or decrease pane size.  | 
    
    
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     */  | 
    
    
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    static enum cmd_retval	cmd_resize_pane_exec(struct cmd *, struct cmdq_item *);  | 
    
    
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    static void	cmd_resize_pane_mouse_update(struct client *,  | 
    
    
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    		    struct mouse_event *);  | 
    
    
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    const struct cmd_entry cmd_resize_pane_entry = { | 
    
    
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    	.name = "resize-pane",  | 
    
    
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    	.alias = "resizep",  | 
    
    
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    	.args = { "DLMRt:Ux:y:Z", 0, 1 }, | 
    
    
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    	.usage = "[-DLMRUZ] [-x width] [-y height] " CMD_TARGET_PANE_USAGE " "  | 
    
    
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    		 "[adjustment]",  | 
    
    
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    	.target = { 't', CMD_FIND_PANE, 0 }, | 
    
    
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    	.flags = CMD_AFTERHOOK,  | 
    
    
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    	.exec = cmd_resize_pane_exec  | 
    
    
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    };  | 
    
    
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    static enum cmd_retval  | 
    
    
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    cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item)  | 
    
    
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    { | 
    
    
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    	struct args		*args = self->args;  | 
    
    
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    	struct cmdq_shared	*shared = item->shared;  | 
    
    
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    	struct window_pane	*wp = item->target.wp;  | 
    
    
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    	struct winlink		*wl = item->target.wl;  | 
    
    
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    	struct window		*w = wl->window;  | 
    
    
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    	struct client		*c = item->client;  | 
    
    
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    	struct session		*s = item->target.s;  | 
    
    
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    	const char	       	*errstr;  | 
    
    
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    	char			*cause;  | 
    
    
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    	u_int			 adjust;  | 
    
    
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    	int			 x, y;  | 
    
    
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    	if (args_has(args, 'M')) { | 
    
    
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    		if (cmd_mouse_window(&shared->mouse, &s) == NULL)  | 
    
    
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    			return (CMD_RETURN_NORMAL);  | 
    
    
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    		if (c == NULL || c->session != s)  | 
    
    
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    			return (CMD_RETURN_NORMAL);  | 
    
    
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    		c->tty.mouse_drag_update = cmd_resize_pane_mouse_update;  | 
    
    
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    		cmd_resize_pane_mouse_update(c, &shared->mouse);  | 
    
    
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    		return (CMD_RETURN_NORMAL);  | 
    
    
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    	}  | 
    
    
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    	if (args_has(args, 'Z')) { | 
    
    
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    		if (w->flags & WINDOW_ZOOMED)  | 
    
    
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    			window_unzoom(w);  | 
    
    
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    		else  | 
    
    
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    			window_zoom(wp);  | 
    
    
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    		server_redraw_window(w);  | 
    
    
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    		server_status_window(w);  | 
    
    
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    		return (CMD_RETURN_NORMAL);  | 
    
    
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    	}  | 
    
    
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    	server_unzoom_window(w);  | 
    
    
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    	if (args->argc == 0)  | 
    
    
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    		adjust = 1;  | 
    
    
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    	else { | 
    
    
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    		adjust = strtonum(args->argv[0], 1, INT_MAX, &errstr);  | 
    
    
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    		if (errstr != NULL) { | 
    
    
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    			cmdq_error(item, "adjustment %s", errstr);  | 
    
    
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    			return (CMD_RETURN_ERROR);  | 
    
    
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    		}  | 
    
    
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    	}  | 
    
    
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    	if (args_has(self->args, 'x')) { | 
    
    
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    		x = args_strtonum(self->args, 'x', PANE_MINIMUM, INT_MAX,  | 
    
    
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    		    &cause);  | 
    
    
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    		if (cause != NULL) { | 
    
    
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    			cmdq_error(item, "width %s", cause);  | 
    
    
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    			free(cause);  | 
    
    
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    			return (CMD_RETURN_ERROR);  | 
    
    
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    		}  | 
    
    
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    		layout_resize_pane_to(wp, LAYOUT_LEFTRIGHT, x);  | 
    
    
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    	}  | 
    
    
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    	if (args_has(self->args, 'y')) { | 
    
    
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    		y = args_strtonum(self->args, 'y', PANE_MINIMUM, INT_MAX,  | 
    
    
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    		    &cause);  | 
    
    
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    		if (cause != NULL) { | 
    
    
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    			cmdq_error(item, "height %s", cause);  | 
    
    
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    			free(cause);  | 
    
    
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    			return (CMD_RETURN_ERROR);  | 
    
    
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    		}  | 
    
    
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    		layout_resize_pane_to(wp, LAYOUT_TOPBOTTOM, y);  | 
    
    
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    	}  | 
    
    
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    	if (args_has(self->args, 'L'))  | 
    
    
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    		layout_resize_pane(wp, LAYOUT_LEFTRIGHT, -adjust, 1);  | 
    
    
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    	else if (args_has(self->args, 'R'))  | 
    
    
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    		layout_resize_pane(wp, LAYOUT_LEFTRIGHT, adjust, 1);  | 
    
    
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    	else if (args_has(self->args, 'U'))  | 
    
    
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    		layout_resize_pane(wp, LAYOUT_TOPBOTTOM, -adjust, 1);  | 
    
    
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    	else if (args_has(self->args, 'D'))  | 
    
    
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    		layout_resize_pane(wp, LAYOUT_TOPBOTTOM, adjust, 1);  | 
    
    
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    	server_redraw_window(wl->window);  | 
    
    
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    	return (CMD_RETURN_NORMAL);  | 
    
    
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    }  | 
    
    
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    static void  | 
    
    
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    cmd_resize_pane_mouse_update(struct client *c, struct mouse_event *m)  | 
    
    
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    { | 
    
    
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    	struct winlink		*wl;  | 
    
    
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    	struct window_pane	*loop, *wp_x, *wp_y;  | 
    
    
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    	u_int			 y, ly, x, lx, sx, sy, ex, ey;  | 
    
    
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    	wl = cmd_mouse_window(m, NULL);  | 
    
    
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    	if (wl == NULL) { | 
    
    
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    		c->tty.mouse_drag_update = NULL;  | 
    
    
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    		return;  | 
    
    
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    	}  | 
    
    
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    	y = m->y; x = m->x;  | 
    
    
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    	if (m->statusat == 0 && y > 0)  | 
    
    
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    		y--;  | 
    
    
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    	else if (m->statusat > 0 && y >= (u_int)m->statusat)  | 
    
    
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    		y = m->statusat - 1;  | 
    
    
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    	ly = m->ly; lx = m->lx;  | 
    
    
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    	if (m->statusat == 0 && ly > 0)  | 
    
    
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    		ly--;  | 
    
    
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    	else if (m->statusat > 0 && ly >= (u_int)m->statusat)  | 
    
    
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    		ly = m->statusat - 1;  | 
    
    
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    	wp_x = wp_y = NULL;  | 
    
    
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    	TAILQ_FOREACH(loop, &wl->window->panes, entry) { | 
    
    
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    		if (!window_pane_visible(loop))  | 
    
    
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    			continue;  | 
    
    
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    		sx = loop->xoff;  | 
    
    
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    		if (sx != 0)  | 
    
    
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    			sx--;  | 
    
    
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    		ex = loop->xoff + loop->sx;  | 
    
    
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    		sy = loop->yoff;  | 
    
    
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    		if (sy != 0)  | 
    
    
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    			sy--;  | 
    
    
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    		ey = loop->yoff + loop->sy;  | 
    
    
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    		if ((lx == sx || lx == ex) &&  | 
    
    
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    		    (ly >= sy && ly <= ey) &&  | 
    
    
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    		    (wp_x == NULL || loop->sy > wp_x->sy))  | 
    
    
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    			wp_x = loop;  | 
    
    
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    		if ((ly == sy || ly == ey) &&  | 
    
    
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    		    (lx >= sx && lx <= ex) &&  | 
    
    
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    		    (wp_y == NULL || loop->sx > wp_y->sx))  | 
    
    
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    			wp_y = loop;  | 
    
    
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    	}  | 
    
    
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    	if (wp_x == NULL && wp_y == NULL) { | 
    
    
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    		c->tty.mouse_drag_update = NULL;  | 
    
    
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    		return;  | 
    
    
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    	}  | 
    
    
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    	if (wp_x != NULL)  | 
    
    
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    		layout_resize_pane(wp_x, LAYOUT_LEFTRIGHT, x - lx, 0);  | 
    
    
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    	if (wp_y != NULL)  | 
    
    
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    		layout_resize_pane(wp_y, LAYOUT_TOPBOTTOM, y - ly, 0);  | 
    
    
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    	server_redraw_window(wl->window);  | 
    
    
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    }  |