317 lines
7.6 KiB
C
317 lines
7.6 KiB
C
/*
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* wmfs2 by Martin Duquesnoy <xorg62@gmail.com> { for(i = 2011; i < 2111; ++i) ©(i); }
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* For license, see COPYING.
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*/
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#include "layout.h"
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#include "config.h"
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#include "client.h"
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#include "util.h"
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static struct geo
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layout_split(struct client *c, bool vertical)
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{
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struct geo og, geo;
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geo = og = c->geo;
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if(vertical)
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{
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c->geo.w >>= 1;
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geo.x = c->geo.x + c->geo.w;
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geo.w >>= 1;
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/* Remainder */
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geo.w += (og.x + og.w) - (geo.x + geo.w);
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}
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else
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{
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c->geo.h >>= 1;
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geo.y = c->geo.y + c->geo.h;
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geo.h >>= 1;
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/* Remainder */
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geo.h += (og.y + og.h) - (geo.y + geo.h);
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}
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client_moveresize(c, c->geo);
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return geo;
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}
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static inline void
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layout_split_arrange_size(struct geo g, struct client *c, Position p)
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{
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if(LDIR(p))
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{
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c->geo.w += g.w;
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if(p == Right)
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c->geo.x = g.x;
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}
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else
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{
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c->geo.h += g.h;
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if(p == Bottom)
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c->geo.y = g.y;
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}
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client_moveresize(c, c->geo);
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}
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static inline bool
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layout_split_check_row_dir(struct client *c, struct client *g, Position p)
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{
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struct geo cgeo = c->geo;
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struct client *cc;
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int s = 0, cs = (LDIR(p) ? g->geo.h : g->geo.w);
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SLIST_FOREACH(cc, &c->tag->clients, tnext)
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if(GEO_PARENTROW(cgeo, cc->geo, RPOS(p))
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&& GEO_CHECK_ROW(cc->geo, g->geo, p))
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{
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s += (LDIR(p) ? cc->geo.h : cc->geo.w);
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if(s == cs)
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return true;
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if(s > cs)
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return false;
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}
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return false;
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}
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/* Use ghost client properties to fix holes in tile
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*
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* ~ .--. ~ ~
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*_____ ~ /xx \ ~ ~
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* |>>| ~\O _ (____ ~
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* | |__.| .--'-==~ ~
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* |>>'---\ '. ~ , ~
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*__|__| '. '-.___.-'/ ~
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* '-.__ _.' ~
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* ````` ~
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*/
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void
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layout_split_arrange_closed(struct client *ghost)
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{
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struct client *c, *cc;
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struct geo g;
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bool b = false;
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Position p;
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/* Search for single parent for easy resize
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* Example case:
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* ___________ ___________
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* | | B | -> -> | | |
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* | A |_____| -> Close -> | A | B |
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* | | C | -> C -> | |v v v|
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* |_____|_____| -> -> |_____|_____|
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*/
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for(p = Right; p < Center; ++p) /* Check every direction */
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{
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if((c = client_next_with_pos(ghost, p)))
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if(GEO_CHECK2(ghost->geo, c->geo, p))
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{
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layout_split_arrange_size(ghost->geo, c, p);
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return;
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}
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}
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/* Check row parents for full resize
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* Example case:
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* ___________ ___________
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* | | B | -> -> | << B |
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* | A |_____| -> Close -> |___________|
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* | | C | -> A -> | << C |
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* |_____|_____| -> -> |___________|
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*/
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for(p = Right; p < Center && !b; ++p)
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{
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if((c = client_next_with_pos(ghost, p))
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&& layout_split_check_row_dir(c, ghost, p))
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{
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g = c->geo;
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SLIST_FOREACH(cc, &c->tag->clients, tnext)
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if(GEO_PARENTROW(g, cc->geo, RPOS(p))
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&& GEO_CHECK_ROW(cc->geo, ghost->geo, p))
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{
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layout_split_arrange_size(ghost->geo, cc, p);
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b = true;
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}
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}
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}
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}
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/* Integrate a client in split layout: split sc and fill c in new geo */
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void
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layout_split_integrate(struct client *c, struct client *sc)
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{
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struct geo g;
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/* No sc */
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if(!sc || sc == c || sc->tag != c->tag)
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{
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/*
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* Not even a first client in list, then
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* maximize the lonely client
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*/
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if(!(sc = SLIST_FIRST(&c->tag->clients)))
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{
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client_maximize(c);
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return;
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}
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}
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g = layout_split(sc, (sc->geo.h < sc->geo.w));
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client_moveresize(c, g);
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}
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/* Arrange inter-clients holes:
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* ___________ ___________
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* | || | -> | | |
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* | A || B | -> | A >| B |
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* | || | -> | >| |
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* |_____||____| -> |______|____|
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* ^ void
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*
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* and client-screen edge holes
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* ___________ ___________
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* | | || -> | | |
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* | A | B || -> | A | B >|
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* | | || -> | | >|
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* |_____|----'| -> |_____|__v__|
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* ^^^ void
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*/
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static inline void
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layout_fix_hole(struct client *c)
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{
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struct client *cr = client_next_with_pos(c, Right);
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struct client *cb = client_next_with_pos(c, Bottom);
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c->geo.w += (cr ? cr->geo.x : c->screen->ugeo.w) - (c->geo.x + c->geo.w);
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c->geo.h += (cb ? cb->geo.y : c->screen->ugeo.h) - (c->geo.y + c->geo.h);
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client_moveresize(c, c->geo);
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}
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/* Layout rotation: Rotate 90° all client to right or left.
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* Avoid if(left) condition in layout_rotate loop; use func ptr
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*
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* Left rotation
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* ____________ ____________
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* | | B | -> | | A |
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* | A |_______| -> |__|_________|
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* |____| C | D | -> |_____| B |
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* |____|___|___| -> |_____|______|
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*
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* Right rotation
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* ____________ ____________
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* | | B | -> | B |_____|
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* | A |_______| -> |______|_____|
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* |____| C | D | -> | A | |
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* |____|___|___| -> |_________|__|
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*
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*/
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static inline void
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_pos_rotate_left(struct geo *g, struct geo ug, struct geo og)
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{
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g->x = (ug.h - (og.y + og.h));
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g->y = og.x;
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}
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static inline void
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_pos_rotate_right(struct geo *g, struct geo ug, struct geo og)
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{
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g->x = og.y;
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g->y = (ug.w - (og.x + og.w));
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}
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static void
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layout_rotate(struct tag *t, bool left)
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{
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struct client *c;
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struct geo g;
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float f1 = (float)t->screen->ugeo.w / (float)t->screen->ugeo.h;
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float f2 = 1 / f1;
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void (*pos)(struct geo*, struct geo, struct geo) =
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(left ? _pos_rotate_left : _pos_rotate_right);
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SLIST_FOREACH(c, &t->clients, tnext)
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{
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pos(&g, t->screen->ugeo, c->geo);
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g.x *= f1;
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g.y *= f2;
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g.w = c->geo.h * f1;
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g.h = c->geo.w * f2;
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client_moveresize(c, g);
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}
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/* Rotate sometimes do not set back perfect size.. */
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SLIST_FOREACH(c, &t->clients, tnext)
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layout_fix_hole(c);
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}
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void
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uicb_layout_rotate_left(Uicb cmd)
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{
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(void)cmd;
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layout_rotate(W->screen->seltag, true);
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}
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void
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uicb_layout_rotate_right(Uicb cmd)
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{
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(void)cmd;
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layout_rotate(W->screen->seltag, false);
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}
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/*
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* Really simple functions, don't need static no-uicb backend
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* so we avoid the use of if(vertical) .. else
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*
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* Vertical mirror
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* ____________ ____________
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* | | B | -> | B | |
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* | A |_______| -> |_______| A |
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* | | C | D | -> | D | C | |
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* |____|___|___| -> |___|___|____|
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*
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* Horizontal mirror
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* ____________ ____________
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* | | B | -> | | C | D |
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* | A |_______| -> | A |___|___|
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* | | C | D | -> | | B |
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* |____|___|___| -> |____|_______|
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*/
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void
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uicb_layout_vmirror(Uicb cmd)
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{
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(void)cmd;
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struct client *c;
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SLIST_FOREACH(c, &W->screen->seltag->clients, tnext)
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{
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c->geo.x = W->screen->ugeo.w - (c->geo.x + c->geo.w);
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client_moveresize(c, c->geo);
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}
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}
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void
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uicb_layout_hmirror(Uicb cmd)
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{
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(void)cmd;
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struct client *c;
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SLIST_FOREACH(c, &W->screen->seltag->clients, tnext)
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{
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c->geo.y = W->screen->ugeo.h - (c->geo.y + c->geo.h);
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client_moveresize(c, c->geo);
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}
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}
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