mod_tiling/tiling.c

   1 /*
   2  * ion/mod_tiling/tiling.c
   3  *
   4  * Copyright (c) Tuomo Valkonen 1999-2007.
   5  *
   6  * See the included file LICENSE for details.
   7  */
   8
   9 #include <string.h>
  10
  11 #include <libtu/objp.h>
  12 #include <libtu/minmax.h>
  13 #include <libtu/ptrlist.h>
  14 #include <libmainloop/defer.h>
  15 #include <libmainloop/signal.h>
  16
  17 #include <ioncore/common.h>
  18 #include <ioncore/rootwin.h>
  19 #include <ioncore/focus.h>
  20 #include <ioncore/global.h>
  21 #include <ioncore/region.h>
  22 #include <ioncore/manage.h>
  23 #include <ioncore/screen.h>
  24 #include <ioncore/names.h>
  25 #include <ioncore/saveload.h>
  26 #include <ioncore/attach.h>
  27 #include <ioncore/resize.h>
  28 #include <libextl/extl.h>
  29 #include <ioncore/regbind.h>
  30 #include <ioncore/extlconv.h>
  31 #include <ioncore/xwindow.h>
  32 #include <ioncore/navi.h>
  33 #include "placement.h"
  34 #include "tiling.h"
  35 #include "split.h"
  36 #include "splitfloat.h"
  37 #include "split-stdisp.h"
  38 #include "main.h"
  39
  40
  41
  42 static WTilingIterTmp tiling_iter_default_tmp;
  43
  44
  45 /*{{{ Some helper routines */
  46
  47
  48 static WSplitRegion *get_node_check(WTiling *ws, WRegion *reg)
  49 {
  50     WSplitRegion *node;
  51
  52     if(reg==NULL)
  53         return NULL;
  54
  55     node=splittree_node_of(reg);
  56
  57     if(node==NULL || REGION_MANAGER(reg)!=(WRegion*)ws)
  58         return NULL;
  59
  60     return node;
  61 }
  62
  63
  64 static bool check_node(WTiling *ws, WSplit *split)
  65 {
  66     if(split->parent)
  67         return check_node(ws, (WSplit*)split->parent);
  68
  69     if((split->ws_if_root!=(void*)ws)){
  70         warn(TR("Split not on workspace."));
  71         return FALSE;
  72     }
  73     return TRUE;
  74 }
  75
  76
  77 /*}}}*/
  78
  79
  80 /*{{{ Dynfun implementations */
  81
  82
  83 static void reparent_mgd(WRegion *sub, WWindow *par)
  84 {
  85     WFitParams subfp;
  86     subfp.g=REGION_GEOM(sub);
  87     subfp.mode=REGION_FIT_EXACT;
  88     if(!region_fitrep(sub, par, &subfp)){
  89         warn(TR("Error reparenting %s."), region_name(sub));
  90         region_detach_manager(sub);
  91     }
  92 }
  93
  94
  95 bool tiling_fitrep(WTiling *ws, WWindow *par, const WFitParams *fp)
  96 {
  97     WTilingIterTmp tmp;
  98     bool ok=FALSE;
  99
 100     if(par!=NULL){
 101         if(!region_same_rootwin((WRegion*)ws, (WRegion*)par))
 102             return FALSE;
 103
 104         region_unset_parent((WRegion*)ws);
 105
 106         XReparentWindow(ioncore_g.dpy, ws->dummywin,
 107                         par->win, fp->g.x, fp->g.y);
 108
 109         region_set_parent((WRegion*)ws, par);
 110
 111         if(ws->split_tree!=NULL)
 112             split_reparent(ws->split_tree, par);
 113     }
 114
 115     REGION_GEOM(ws)=fp->g;
 116
 117     if(ws->split_tree!=NULL){
 118         bool done=FALSE;
 119         if(fp->mode&REGION_FIT_ROTATE)
 120             ok=split_rotate_to(ws->split_tree, &(fp->g), fp->rotation);
 121         if(!ok)
 122             split_resize(ws->split_tree, &(fp->g), PRIMN_ANY, PRIMN_ANY);
 123     }
 124
 125     return TRUE;
 126 }
 127
 128
 129 void tiling_managed_rqgeom(WTiling *ws, WRegion *mgd,
 130                            const WRQGeomParams *rq,
 131                            WRectangle *geomret)
 132 {
 133     WSplitRegion *node=get_node_check(ws, mgd);
 134     if(node!=NULL && ws->split_tree!=NULL)
 135         splittree_rqgeom((WSplit*)node, rq->flags, &rq->geom, geomret);
 136 }
 137
 138
 139 void tiling_map(WTiling *ws)
 140 {
 141     REGION_MARK_MAPPED(ws);
 142     XMapWindow(ioncore_g.dpy, ws->dummywin);
 143
 144     if(ws->split_tree!=NULL)
 145         split_map(ws->split_tree);
 146 }
 147
 148
 149 void tiling_unmap(WTiling *ws)
 150 {
 151     REGION_MARK_UNMAPPED(ws);
 152     XUnmapWindow(ioncore_g.dpy, ws->dummywin);
 153
 154     if(ws->split_tree!=NULL)
 155         split_unmap(ws->split_tree);
 156 }
 157
 158
 159 void tiling_fallback_focus(WTiling *ws, bool warp)
 160 {
 161     region_finalise_focusing((WRegion*)ws, ws->dummywin, warp);
 162 }
 163
 164
 165 void tiling_do_set_focus(WTiling *ws, bool warp)
 166 {
 167     WRegion *sub=tiling_current(ws);
 168
 169     if(sub==NULL){
 170         tiling_fallback_focus(ws, warp);
 171         return;
 172     }
 173
 174     region_do_set_focus(sub, warp);
 175 }
 176
 177
 178 static WTimer *restack_timer=NULL;
 179
 180
 181 static void restack_handler(WTimer *tmr, Obj *obj)
 182 {
 183     if(obj!=NULL){
 184         WTiling *ws=(WTiling*)obj;
 185         split_restack(ws->split_tree, ws->dummywin, Above);
 186     }
 187 }
 188
 189
 190 bool tiling_managed_prepare_focus(WTiling *ws, WRegion *reg,
 191                                  int flags, WPrepareFocusResult *res)
 192 {
 193     WSplitRegion *node;
 194
 195     if(!region_prepare_focus((WRegion*)ws, flags, res))
 196         return FALSE;
 197
 198     node=get_node_check(ws, reg);
 199
 200     if(node!=NULL && node->split.parent!=NULL)
 201         splitinner_mark_current(node->split.parent, &(node->split));
 202
 203     /* WSplitSplit uses activity based stacking as required on WAutoWS,
 204      * so we must restack here.
 205      */
 206     if(ws->split_tree!=NULL){
 207         int rd=mod_tiling_raise_delay;
 208         bool use_timer=rd>0 && flags&REGION_GOTO_ENTERWINDOW;
 209
 210         if(use_timer){
 211             if(restack_timer!=NULL){
 212                 Obj *obj=restack_timer->objwatch.obj;
 213                 if(obj!=(Obj*)ws){
 214                     timer_reset(restack_timer);
 215                     restack_handler(restack_timer, obj);
 216                 }
 217             }else{
 218                 restack_timer=create_timer();
 219             }
 220         }
 221
 222         if(use_timer && restack_timer!=NULL){
 223             timer_set(restack_timer, rd, restack_handler, (Obj*)ws);
 224         }else{
 225             split_restack(ws->split_tree, ws->dummywin, Above);
 226         }
 227     }
 228
 229     res->reg=reg;
 230     res->flags=flags;
 231     return TRUE;
 232 }
 233
 234
 235
 236 void tiling_restack(WTiling *ws, Window other, int mode)
 237 {
 238     xwindow_restack(ws->dummywin, other, mode);
 239     if(ws->split_tree!=NULL)
 240         split_restack(ws->split_tree, ws->dummywin, Above);
 241 }
 242
 243
 244 void tiling_stacking(WTiling *ws, Window *bottomret, Window *topret)
 245 {
 246     Window sbottom=None, stop=None;
 247
 248     if(ws->split_tree!=None)
 249         split_stacking(ws->split_tree, &sbottom, &stop);
 250
 251     *bottomret=ws->dummywin;
 252     *topret=(stop!=None ? stop : ws->dummywin);
 253 }
 254
 255
 256 Window tiling_xwindow(const WTiling *ws)
 257 {
 258     return ws->dummywin;
 259 }
 260
 261
 262 /*}}}*/
 263
 264
 265 /*{{{ Status display support code */
 266
 267
 268 static bool regnodefilter(WSplit *split)
 269 {
 270     return OBJ_IS(split, WSplitRegion);
 271 }
 272
 273
 274 void tiling_unmanage_stdisp(WTiling *ws, bool permanent, bool nofocus)
 275 {
 276     WSplitRegion *tofocus=NULL;
 277     bool setfocus=FALSE;
 278     WRegion *od;
 279
 280     if(ws->stdispnode==NULL)
 281         return;
 282
 283     od=ws->stdispnode->regnode.reg;
 284
 285     if(od!=NULL){
 286         if(!nofocus && REGION_IS_ACTIVE(od) &&
 287            region_may_control_focus((WRegion*)ws)){
 288             setfocus=TRUE;
 289             tofocus=(WSplitRegion*)split_nextto((WSplit*)(ws->stdispnode),
 290                                                 PRIMN_ANY, PRIMN_ANY,
 291                                                 regnodefilter);
 292         }
 293         /* Reset node_of info here so tiling_managed_remove will not
 294          * remove the node.
 295          */
 296         splittree_set_node_of(od, NULL);
 297         tiling_do_managed_remove(ws, od);
 298     }
 299
 300     if(permanent){
 301         WSplit *node=(WSplit*)ws->stdispnode;
 302         ws->stdispnode=NULL;
 303         splittree_remove(node, TRUE);
 304     }
 305
 306     if(setfocus){
 307         if(tofocus!=NULL)
 308             region_set_focus(tofocus->reg);
 309         else
 310             tiling_fallback_focus(ws, FALSE);
 311     }
 312 }
 313
 314
 315 static void tiling_create_stdispnode(WTiling *ws, WRegion *stdisp,
 316                                     int corner, int orientation,
 317                                     bool fullsize)
 318 {
 319     int flags=REGION_RQGEOM_WEAK_X|REGION_RQGEOM_WEAK_Y;
 320     WRectangle *wg=&REGION_GEOM(ws), dg;
 321     WSplitST *stdispnode;
 322     WSplitSplit *split;
 323
 324     assert(ws->split_tree!=NULL);
 325
 326     if(orientation==REGION_ORIENTATION_HORIZONTAL){
 327         dg.x=wg->x;
 328         dg.w=wg->w;
 329         dg.h=0;
 330         dg.y=((corner==MPLEX_STDISP_BL || corner==MPLEX_STDISP_BR)
 331               ? wg->y+wg->h
 332               : 0);
 333     }else{
 334         dg.y=wg->y;
 335         dg.h=wg->h;
 336         dg.w=0;
 337         dg.x=((corner==MPLEX_STDISP_TR || corner==MPLEX_STDISP_BR)
 338               ? wg->x+wg->w
 339               : 0);
 340     }
 341
 342     stdispnode=create_splitst(&dg, stdisp);
 343
 344     if(stdispnode==NULL){
 345         warn(TR("Unable to create a node for status display."));
 346         return;
 347     }
 348
 349     stdispnode->corner=corner;
 350     stdispnode->orientation=orientation;
 351     stdispnode->fullsize=fullsize;
 352
 353     split=create_splitsplit(wg, (orientation==REGION_ORIENTATION_HORIZONTAL
 354                                  ? SPLIT_VERTICAL
 355                                  : SPLIT_HORIZONTAL));
 356
 357     if(split==NULL){
 358         warn(TR("Unable to create new split for status display."));
 359         stdispnode->regnode.reg=NULL;
 360         destroy_obj((Obj*)stdispnode);
 361         return;
 362     }
 363
 364     /* Set up new split tree */
 365     ((WSplit*)stdispnode)->parent=(WSplitInner*)split;
 366     ws->split_tree->parent=(WSplitInner*)split;
 367     ws->split_tree->ws_if_root=NULL;
 368
 369     if((orientation==REGION_ORIENTATION_HORIZONTAL &&
 370         (corner==MPLEX_STDISP_BL || corner==MPLEX_STDISP_BR)) ||
 371        (orientation==REGION_ORIENTATION_VERTICAL &&
 372         (corner==MPLEX_STDISP_TR || corner==MPLEX_STDISP_BR))){
 373         split->tl=ws->split_tree;
 374         split->br=(WSplit*)stdispnode;
 375         split->current=SPLIT_CURRENT_TL;
 376     }else{
 377         split->tl=(WSplit*)stdispnode;
 378         split->br=ws->split_tree;
 379         split->current=SPLIT_CURRENT_BR;
 380     }
 381
 382     ws->split_tree=(WSplit*)split;
 383     ((WSplit*)split)->ws_if_root=ws;
 384     ws->stdispnode=stdispnode;
 385 }
 386
 387
 388 void tiling_manage_stdisp(WTiling *ws, WRegion *stdisp,
 389                          const WMPlexSTDispInfo *di)
 390 {
 391     bool mcf=region_may_control_focus((WRegion*)ws);
 392     int flags=REGION_RQGEOM_WEAK_X|REGION_RQGEOM_WEAK_Y;
 393     int orientation=region_orientation(stdisp);
 394     bool act=FALSE;
 395     WRectangle dg, *stdg;
 396
 397     if(orientation!=REGION_ORIENTATION_VERTICAL /*&&
 398        orientation!=REGION_ORIENTATION_HORIZONTAL*/){
 399         orientation=REGION_ORIENTATION_HORIZONTAL;
 400     }
 401
 402     if(ws->stdispnode==NULL || ws->stdispnode->regnode.reg!=stdisp)
 403         region_detach_manager(stdisp);
 404
 405     /* Remove old stdisp if corner and orientation don't match.
 406      */
 407     if(ws->stdispnode!=NULL && (di->pos!=ws->stdispnode->corner ||
 408                                 orientation!=ws->stdispnode->orientation)){
 409         tiling_unmanage_stdisp(ws, TRUE, TRUE);
 410     }
 411
 412     if(ws->stdispnode==NULL){
 413         tiling_create_stdispnode(ws, stdisp, di->pos, orientation,
 414                                 di->fullsize);
 415         if(ws->stdispnode==NULL)
 416             return;
 417     }else{
 418         WRegion *od=ws->stdispnode->regnode.reg;
 419         if(od!=NULL){
 420             act=REGION_IS_ACTIVE(od);
 421             splittree_set_node_of(od, NULL);
 422             tiling_managed_remove(ws, od);
 423             assert(ws->stdispnode->regnode.reg==NULL);
 424         }
 425
 426         ws->stdispnode->fullsize=di->fullsize;
 427         ws->stdispnode->regnode.reg=stdisp;
 428         splittree_set_node_of(stdisp, &(ws->stdispnode->regnode));
 429     }
 430
 431     if(!tiling_managed_add(ws, stdisp)){
 432         tiling_unmanage_stdisp(ws, TRUE, TRUE);
 433         return;
 434     }
 435
 436     stdisp->flags|=REGION_SKIP_FOCUS;
 437
 438     dg=((WSplit*)(ws->stdispnode))->geom;
 439
 440     dg.h=stdisp_recommended_h(ws->stdispnode);
 441     dg.w=stdisp_recommended_w(ws->stdispnode);
 442
 443     splittree_rqgeom((WSplit*)(ws->stdispnode), flags, &dg, FALSE);
 444
 445     stdg=&(((WSplit*)ws->stdispnode)->geom);
 446
 447     if(stdisp->geom.x!=stdg->x || stdisp->geom.y!=stdg->y ||
 448        stdisp->geom.w!=stdg->w || stdisp->geom.h!=stdg->h){
 449         region_fit(stdisp, stdg, REGION_FIT_EXACT);
 450     }
 451
 452     /* Restack to ensure the split tree is stacked in the expected order. */
 453     if(ws->split_tree!=NULL)
 454         split_restack(ws->split_tree, ws->dummywin, Above);
 455
 456     if(mcf && act)
 457         region_set_focus(stdisp);
 458 }
 459
 460
 461 /*}}}*/
 462
 463
 464 /*{{{ Create/destroy */
 465
 466
 467 bool tiling_managed_add_default(WTiling *ws, WRegion *reg)
 468 {
 469     Window bottom=None, top=None;
 470     WFrame *frame;
 471
 472     if(TILING_STDISP_OF(ws)!=reg){
 473         if(!ptrlist_insert_last(&(ws->managed_list), reg))
 474             return FALSE;
 475     }
 476
 477     region_set_manager(reg, (WRegion*)ws);
 478
 479     frame=OBJ_CAST(reg, WFrame);
 480     if(frame!=NULL){
 481         WFrameMode mode=frame_mode(frame);
 482         if(mode!=FRAME_MODE_TILED && mode!=FRAME_MODE_TILED_ALT)
 483             frame_set_mode(frame, FRAME_MODE_TILED);
 484     }
 485
 486     if(REGION_IS_MAPPED(ws))
 487         region_map(reg);
 488
 489     if(region_may_control_focus((WRegion*)ws)){
 490         WRegion *curr=tiling_current(ws);
 491         if(curr==NULL || !REGION_IS_ACTIVE(curr))
 492             region_warp(reg);
 493     }
 494
 495     return TRUE;
 496 }
 497
 498
 499 bool tiling_managed_add(WTiling *ws, WRegion *reg)
 500 {
 501     bool ret=FALSE;
 502     CALL_DYN_RET(ret, bool, tiling_managed_add, ws, (ws, reg));
 503     return ret;
 504 }
 505
 506
 507 bool tiling_do_attach_initial(WTiling *ws, WRegion *reg)
 508 {
 509     assert(ws->split_tree==NULL);
 510
 511     ws->split_tree=(WSplit*)create_splitregion(&REGION_GEOM(reg), reg);
 512     if(ws->split_tree==NULL)
 513         return FALSE;
 514
 515     ws->split_tree->ws_if_root=ws;
 516
 517     if(!tiling_managed_add(ws, reg)){
 518         destroy_obj((Obj*)ws->split_tree);
 519         ws->split_tree=NULL;
 520         return FALSE;
 521     }
 522
 523     return TRUE;
 524 }
 525
 526
 527 static WRegion *create_frame_tiling(WWindow *parent, const WFitParams *fp)
 528 {
 529     return (WRegion*)create_frame(parent, fp, FRAME_MODE_TILED);
 530 }
 531
 532
 533 bool tiling_init(WTiling *ws, WWindow *parent, const WFitParams *fp,
 534                 WRegionSimpleCreateFn *create_frame_fn, bool ci)
 535 {
 536     ws->split_tree=NULL;
 537     ws->create_frame_fn=(create_frame_fn
 538                          ? create_frame_fn
 539                          : create_frame_tiling);
 540     ws->stdispnode=NULL;
 541     ws->managed_list=NULL;
 542     ws->batchop=FALSE;
 543
 544     ws->dummywin=XCreateWindow(ioncore_g.dpy, parent->win,
 545                                 fp->g.x, fp->g.y, 1, 1, 0,
 546                                 CopyFromParent, InputOnly,
 547                                 CopyFromParent, 0, NULL);
 548     if(ws->dummywin==None)
 549         return FALSE;
 550
 551     region_init(&(ws->reg), parent, fp);
 552
 553     ws->reg.flags|=(REGION_GRAB_ON_PARENT|
 554                     REGION_PLEASE_WARP);
 555
 556     if(ci){
 557         WRegionAttachData data;
 558         WRegion *res;
 559
 560         data.type=REGION_ATTACH_NEW;
 561         data.u.n.fn=(WRegionCreateFn*)ws->create_frame_fn;
 562         data.u.n.param=NULL;
 563
 564         res=region_attach_helper((WRegion*)ws, parent, fp,
 565                                  (WRegionDoAttachFn*)tiling_do_attach_initial,
 566                                  NULL, &data);
 567
 568         if(res==NULL){
 569             XDestroyWindow(ioncore_g.dpy, ws->dummywin);
 570             return FALSE;
 571         }
 572     }
 573
 574     XSelectInput(ioncore_g.dpy, ws->dummywin,
 575                  FocusChangeMask|KeyPressMask|KeyReleaseMask|
 576                  ButtonPressMask|ButtonReleaseMask);
 577     XSaveContext(ioncore_g.dpy, ws->dummywin, ioncore_g.win_context,
 578                  (XPointer)ws);
 579
 580     region_register(&(ws->reg));
 581     region_add_bindmap((WRegion*)ws, mod_tiling_tiling_bindmap);
 582
 583     return TRUE;
 584 }
 585
 586
 587 WTiling *create_tiling(WWindow *parent, const WFitParams *fp,
 588                      WRegionSimpleCreateFn *create_frame_fn, bool ci)
 589 {
 590     CREATEOBJ_IMPL(WTiling, tiling, (p, parent, fp, create_frame_fn, ci));
 591 }
 592
 593
 594 WTiling *create_tiling_simple(WWindow *parent, const WFitParams *fp)
 595 {
 596     return create_tiling(parent, fp, NULL, TRUE);
 597 }
 598
 599
 600 void tiling_deinit(WTiling *ws)
 601 {
 602     WRegion *reg;
 603     WTilingIterTmp tmp;
 604     WMPlex *remanage_mplex=NULL;
 605
 606     tiling_unmanage_stdisp(ws, FALSE, TRUE);
 607
 608     FOR_ALL_MANAGED_BY_TILING(reg, ws, tmp){
 609         destroy_obj((Obj*)reg);
 610     }
 611
 612     FOR_ALL_MANAGED_BY_TILING(reg, ws, tmp){
 613         assert(FALSE);
 614     }
 615
 616     if(ws->split_tree!=NULL)
 617         destroy_obj((Obj*)(ws->split_tree));
 618
 619     XDeleteContext(ioncore_g.dpy, ws->dummywin, ioncore_g.win_context);
 620     XDestroyWindow(ioncore_g.dpy, ws->dummywin);
 621     ws->dummywin=None;
 622
 623     region_deinit(&(ws->reg));
 624 }
 625
 626
 627 WRegion *tiling_managed_disposeroot(WTiling *ws, WRegion *reg)
 628 {
 629     WTilingIterTmp tmp;
 630     WRegion *mgd;
 631
 632     if(ws->batchop)
 633         return reg;
 634
 635     FOR_ALL_MANAGED_BY_TILING(mgd, ws, tmp){
 636         if(mgd!=TILING_STDISP_OF(ws) && mgd!=reg)
 637             return reg;
 638     }
 639
 640     return region_disposeroot((WRegion*)ws);
 641 }
 642
 643
 644 bool tiling_rescue_clientwins(WTiling *ws, WRescueInfo *info)
 645 {
 646     WTilingIterTmp tmp;
 647
 648     ptrlist_iter_init(&tmp, ws->managed_list);
 649
 650     return region_rescue_some_clientwins((WRegion*)ws, info,
 651                                          (WRegionIterator*)ptrlist_iter,
 652                                          &tmp);
 653 }
 654
 655
 656 void tiling_do_managed_remove(WTiling *ws, WRegion *reg)
 657 {
 658     if(TILING_STDISP_OF(ws)==reg){
 659         ws->stdispnode->regnode.reg=NULL;
 660     }else{
 661         ptrlist_remove(&(ws->managed_list), reg);
 662     }
 663
 664     region_unset_manager(reg, (WRegion*)ws);
 665     splittree_set_node_of(reg, NULL);
 666 }
 667
 668
 669 static bool nostdispfilter(WSplit *node)
 670 {
 671     return (OBJ_IS(node, WSplitRegion) && !OBJ_IS(node, WSplitST));
 672 }
 673
 674
 675 void tiling_managed_remove(WTiling *ws, WRegion *reg)
 676 {
 677     bool act=REGION_IS_ACTIVE(reg);
 678     bool mcf=region_may_control_focus((WRegion*)ws);
 679     WSplitRegion *node=get_node_check(ws, reg);
 680     bool norestore=(OBJ_IS_BEING_DESTROYED(ws) || ws->batchop);
 681     WRegion *other=NULL;
 682
 683     if(!norestore)
 684         other=tiling_do_navi_next(ws, reg, REGION_NAVI_ANY, TRUE, FALSE);
 685
 686     tiling_do_managed_remove(ws, reg);
 687
 688     if(node==(WSplitRegion*)(ws->stdispnode))
 689         ws->stdispnode=NULL;
 690
 691     if(node!=NULL){
 692         bool reused=FALSE;
 693
 694         if(other==NULL && !norestore){
 695             WWindow *par=REGION_PARENT(ws);
 696             WFitParams fp;
 697
 698             assert(par!=NULL);
 699
 700             fp.g=node->split.geom;
 701             fp.mode=REGION_FIT_EXACT;
 702
 703             other=(ws->create_frame_fn)(par, &fp);
 704
 705             if(other!=NULL){
 706                 node->reg=other;
 707                 splittree_set_node_of(other, node);
 708                 tiling_managed_add(ws, other);
 709                 reused=TRUE;
 710             }else{
 711                 warn(TR("Tiling in useless state."));
 712             }
 713         }
 714
 715         if(!reused)
 716             splittree_remove((WSplit*)node, (!norestore && other!=NULL));
 717     }
 718
 719     if(!norestore && other!=NULL && act && mcf)
 720         region_warp(other);
 721 }
 722
 723
 724 static bool mplexfilter(WSplit *node)
 725 {
 726     WSplitRegion *regnode=OBJ_CAST(node, WSplitRegion);
 727
 728     return (regnode!=NULL && regnode->reg!=NULL &&
 729             OBJ_IS(regnode->reg, WMPlex));
 730 }
 731
 732
 733 static WPHolder *find_ph_result=NULL;
 734 static WRegion *find_ph_param=NULL;
 735
 736
 737 static bool find_ph(WSplit *split)
 738 {
 739     WSplitRegion *sr=OBJ_CAST(split, WSplitRegion);
 740
 741     assert(find_ph_result==NULL);
 742
 743     if(sr==NULL || sr->reg==NULL)
 744         return FALSE;
 745
 746     find_ph_result=region_get_rescue_pholder_for(sr->reg, find_ph_param);
 747
 748     return (find_ph_result!=NULL);
 749 }
 750
 751
 752 WPHolder *tiling_get_rescue_pholder_for(WTiling *ws, WRegion *mgd)
 753 {
 754     WSplit *node=(WSplit*)get_node_check(ws, mgd);
 755     WPHolder *ph;
 756
 757     find_ph_result=NULL;
 758     find_ph_param=mgd;
 759
 760     if(node==NULL){
 761         if(ws->split_tree!=NULL){
 762             split_current_todir(ws->split_tree, PRIMN_ANY, PRIMN_ANY,
 763                                 find_ph);
 764         }
 765     }else{
 766         while(node!=NULL){
 767             split_nextto(node, PRIMN_ANY, PRIMN_ANY, find_ph);
 768             if(find_ph_result!=NULL)
 769                 break;
 770             node=(WSplit*)node->parent;
 771         }
 772     }
 773
 774     ph=find_ph_result;
 775     find_ph_result=NULL;
 776     find_ph_param=NULL;
 777
 778     return ph;
 779 }
 780
 781
 782 /*}}}*/
 783
 784
 785 /*{{{ Navigation */
 786
 787
 788 static void navi_to_primn(WRegionNavi nh, WPrimn *hprimn, WPrimn *vprimn,
 789                           WPrimn choice)
 790 {
 791     /* choice should be PRIMN_ANY or PRIMN_NONE */
 792
 793     switch(nh){
 794     case REGION_NAVI_BEG:
 795         *vprimn=PRIMN_TL;
 796         *hprimn=PRIMN_TL;
 797         break;
 798
 799     case REGION_NAVI_END:
 800         *vprimn=PRIMN_BR;
 801         *hprimn=PRIMN_BR;
 802         break;
 803
 804     case REGION_NAVI_LEFT:
 805         *hprimn=PRIMN_TL;
 806         *vprimn=choice;
 807         break;
 808
 809     case REGION_NAVI_RIGHT:
 810         *hprimn=PRIMN_BR;
 811         *vprimn=choice;
 812         break;
 813
 814     case REGION_NAVI_TOP:
 815         *hprimn=choice;
 816         *vprimn=PRIMN_TL;
 817         break;
 818
 819     case REGION_NAVI_BOTTOM:
 820         *hprimn=choice;
 821         *vprimn=PRIMN_BR;
 822         break;
 823
 824     default:
 825     case REGION_NAVI_ANY:
 826         *hprimn=PRIMN_ANY;
 827         *vprimn=PRIMN_ANY;
 828         break;
 829     }
 830 }
 831
 832
 833 static WRegion *node_reg(WSplit *node)
 834 {
 835     WSplitRegion *rnode=OBJ_CAST(node, WSplitRegion);
 836     return (rnode!=NULL ? rnode->reg : NULL);
 837 }
 838
 839
 840 WRegion *tiling_do_navi_next(WTiling *ws, WRegion *reg,
 841                              WRegionNavi nh, bool nowrap,
 842                              bool any)
 843 {
 844     WSplitFilter *filter=(any ? NULL : nostdispfilter);
 845     WPrimn hprimn, vprimn;
 846     WRegion *nxt=NULL;
 847
 848     navi_to_primn(nh, &hprimn, &vprimn, PRIMN_NONE);
 849
 850     if(reg==NULL)
 851         reg=tiling_current(ws);
 852
 853     if(reg!=NULL){
 854         WSplitRegion *node=get_node_check(ws, reg);
 855         if(node!=NULL){
 856             nxt=node_reg(split_nextto((WSplit*)node, hprimn, vprimn,
 857                                       filter));
 858         }
 859     }
 860
 861     if(nxt==NULL && !nowrap){
 862         nxt=node_reg(split_current_todir(ws->split_tree,
 863                                          primn_none2any(primn_invert(hprimn)),
 864                                          primn_none2any(primn_invert(vprimn)),
 865                                          filter));
 866     }
 867
 868     return nxt;
 869 }
 870
 871
 872 WRegion *tiling_do_navi_first(WTiling *ws, WRegionNavi nh, bool any)
 873 {
 874     WSplitFilter *filter=(any ? NULL : nostdispfilter);
 875     WPrimn hprimn, vprimn;
 876
 877     navi_to_primn(nh, &hprimn, &vprimn, PRIMN_ANY);
 878
 879     return node_reg(split_current_todir(ws->split_tree,
 880                                         hprimn, vprimn, filter));
 881 }
 882
 883
 884 WRegion *tiling_navi_next(WTiling *ws, WRegion *reg,
 885                           WRegionNavi nh, WRegionNaviData *data)
 886 {
 887     WRegion *nxt=tiling_do_navi_next(ws, reg, nh, TRUE, FALSE);
 888
 889     return region_navi_cont(&ws->reg, nxt, data);
 890 }
 891
 892
 893 WRegion *tiling_navi_first(WTiling *ws, WRegionNavi nh,
 894                            WRegionNaviData *data)
 895 {
 896     WRegion *reg=tiling_do_navi_first(ws, nh, FALSE);
 897
 898     return region_navi_cont(&ws->reg, reg, data);
 899 }
 900
 901
 902 /*}}}*/
 903
 904
 905 /*{{{ Split/unsplit */
 906
 907
 908 static bool get_split_dir_primn(const char *str, int *dir, int *primn)
 909 {
 910     WPrimn hprimn, vprimn;
 911     WRegionNavi nh;
 912
 913     if(!ioncore_string_to_navi(str, &nh))
 914         return FALSE;
 915
 916     navi_to_primn(nh, &hprimn, &vprimn, PRIMN_NONE);
 917
 918     if(hprimn==PRIMN_NONE){
 919         *dir=SPLIT_VERTICAL;
 920         *primn=vprimn;
 921     }else if(vprimn==PRIMN_NONE){
 922         *dir=SPLIT_HORIZONTAL;
 923         *primn=hprimn;
 924     }else{
 925         warn(TR("Invalid direction"));
 926         return FALSE;
 927     }
 928
 929     return TRUE;
 930 }
 931
 932
 933 static bool get_split_dir_primn_float(const char *str, int *dir, int *primn,
 934                                       bool *floating)
 935 {
 936     if(strncmp(str, "floating:", 9)==0){
 937         *floating=TRUE;
 938         return get_split_dir_primn(str+9, dir, primn);
 939     }else{
 940         *floating=FALSE;
 941         return get_split_dir_primn(str, dir, primn);
 942     }
 943 }
 944
 945
 946 #define SPLIT_MINS 16 /* totally arbitrary */
 947
 948
 949 static WFrame *tiling_do_split(WTiling *ws, WSplit *node,
 950                               const char *dirstr, int minw, int minh)
 951 {
 952     int dir, primn, mins;
 953     bool floating=FALSE;
 954     WFrame *newframe;
 955     WSplitRegion *nnode;
 956
 957     if(node==NULL || ws->split_tree==NULL){
 958         warn(TR("Invalid node."));
 959         return NULL;
 960     }
 961
 962     if(!get_split_dir_primn_float(dirstr, &dir, &primn, &floating))
 963         return NULL;
 964
 965     mins=(dir==SPLIT_VERTICAL ? minh : minw);
 966
 967     if(!floating){
 968         nnode=splittree_split(node, dir, primn, mins,
 969                               ws->create_frame_fn,
 970                               REGION_PARENT(ws));
 971     }else{
 972         nnode=splittree_split_floating(node, dir, primn, mins,
 973                                        ws->create_frame_fn, ws);
 974     }
 975
 976     if(nnode==NULL){
 977         warn(TR("Unable to split."));
 978         return NULL;
 979     }
 980
 981     /* We must restack here to ensure the split tree is stacked in the
 982      * expected order.
 983      */
 984     if(ws->split_tree!=NULL)
 985         split_restack(ws->split_tree, ws->dummywin, Above);
 986
 987     newframe=OBJ_CAST(nnode->reg, WFrame);
 988     assert(newframe!=NULL);
 989
 990     if(!tiling_managed_add(ws, nnode->reg)){
 991         nnode->reg=NULL;
 992         destroy_obj((Obj*)nnode);
 993         destroy_obj((Obj*)newframe);
 994         return NULL;
 995     }
 996
 997     /* Restack */
 998     if(ws->split_tree!=NULL)
 999         split_restack(ws->split_tree, ws->dummywin, Above);
1000
1001     return newframe;
1002 }
1003
1004
1005 /*EXTL_DOC
1006  * Create a new frame on \var{ws} \codestr{above}, \codestr{below}
1007  * \codestr{left} of, or \codestr{right} of \var{node} as indicated
1008  *  by \var{dirstr}. If \var{dirstr} is  prefixed with
1009  * \codestr{floating:} a floating split is created.
1010  */
1011 EXTL_EXPORT_MEMBER
1012 WFrame *tiling_split(WTiling *ws, WSplit *node, const char *dirstr)
1013 {
1014     if(!check_node(ws, node))
1015         return NULL;
1016
1017     return tiling_do_split(ws, node, dirstr,
1018                           SPLIT_MINS, SPLIT_MINS);
1019 }
1020
1021
1022 /*EXTL_DOC
1023  * Same as \fnref{WTiling.split} at the root of the split tree.
1024  */
1025 EXTL_EXPORT_MEMBER
1026 WFrame *tiling_split_top(WTiling *ws, const char *dirstr)
1027 {
1028     return tiling_do_split(ws, ws->split_tree, dirstr,
1029                           SPLIT_MINS, SPLIT_MINS);
1030 }
1031
1032
1033 /*EXTL_DOC
1034  * Split \var{frame} creating a new frame to direction \var{dirstr}
1035  * (one of \codestr{left}, \codestr{right}, \codestr{top} or
1036  * \codestr{bottom}) of \var{frame}.
1037  * If \var{attach_current} is set, the region currently displayed in
1038  * \var{frame}, if any, is moved to thenew frame.
1039  * If \var{dirstr} is prefixed with \codestr{floating:}, a floating
1040  * split is created.
1041  */
1042 EXTL_EXPORT_MEMBER
1043 WFrame *tiling_split_at(WTiling *ws, WFrame *frame, const char *dirstr,
1044                        bool attach_current)
1045 {
1046     WRegion *curr;
1047     WSplitRegion *node;
1048     WFrame *newframe;
1049
1050     if(frame==NULL)
1051         return NULL;
1052
1053     node=get_node_check(ws, (WRegion*)frame);
1054
1055     newframe=tiling_do_split(ws, (WSplit*)node, dirstr,
1056                             region_min_w((WRegion*)frame),
1057                             region_min_h((WRegion*)frame));
1058
1059     if(newframe==NULL)
1060         return NULL;
1061
1062     curr=mplex_mx_current(&(frame->mplex));
1063
1064     if(attach_current && curr!=NULL)
1065         mplex_attach_simple(&(newframe->mplex), curr, MPLEX_ATTACH_SWITCHTO);
1066
1067     if(region_may_control_focus((WRegion*)frame))
1068         region_goto((WRegion*)newframe);
1069
1070     return newframe;
1071 }
1072
1073
1074 /*EXTL_DOC
1075  * Try to relocate regions managed by \var{reg} to another frame
1076  * and, if possible, destroy it.
1077  */
1078 EXTL_EXPORT_MEMBER
1079 void tiling_unsplit_at(WTiling *ws, WRegion *reg)
1080 {
1081     WPHolder *ph;
1082
1083     if(reg==NULL || REGION_MANAGER(reg)!=(WRegion*)ws)
1084         return;
1085
1086     ph=region_get_rescue_pholder_for((WRegion*)ws, reg);
1087
1088     if(ph!=NULL){
1089         region_rescue(reg, ph);
1090         destroy_obj((Obj*)ph);
1091     }
1092
1093     region_defer_rqdispose(reg);
1094 }
1095
1096
1097 /*}}}*/
1098
1099
1100 /*{{{ Navigation etc. exports */
1101
1102
1103 WRegion *tiling_current(WTiling *ws)
1104 {
1105     WSplitRegion *node=NULL;
1106     if(ws->split_tree!=NULL){
1107         node=(WSplitRegion*)split_current_todir(ws->split_tree,
1108                                                 PRIMN_ANY, PRIMN_ANY, NULL);
1109     }
1110     return (node ? node->reg : NULL);
1111 }
1112
1113
1114 /*EXTL_DOC
1115  * Iterate over managed regions of \var{ws} until \var{iterfn} returns
1116  * \code{false}.
1117  * The function itself returns \code{true} if it reaches the end of list
1118  * without this happening.
1119  */
1120 EXTL_SAFE
1121 EXTL_EXPORT_MEMBER
1122 bool tiling_managed_i(WTiling *ws, ExtlFn iterfn)
1123 {
1124     PtrListIterTmp tmp;
1125
1126     ptrlist_iter_init(&tmp, ws->managed_list);
1127
1128     return extl_iter_objlist_(iterfn, (ObjIterator*)ptrlist_iter, &tmp);
1129 }
1130
1131
1132 /*EXTL_DOC
1133  * Returns the root of the split tree.
1134  */
1135 EXTL_SAFE
1136 EXTL_EXPORT_MEMBER
1137 WSplit *tiling_split_tree(WTiling *ws)
1138 {
1139     return ws->split_tree;
1140 }
1141
1142
1143 /*EXTL_DOC
1144  * Return the most previously active region next to \var{reg} in
1145  * direction \var{dirstr} (\codestr{left}, \codestr{right}, \codestr{up},
1146  * or \codestr{down}). The region \var{reg}
1147  * must be managed by \var{ws}. If \var{any} is not set, the status display
1148  * is not considered.
1149  */
1150 EXTL_SAFE
1151 EXTL_EXPORT_MEMBER
1152 WRegion *tiling_nextto(WTiling *ws, WRegion *reg, const char *dirstr,
1153                        bool any)
1154 {
1155     WRegionNavi nh;
1156
1157     if(!ioncore_string_to_navi(dirstr, &nh))
1158         return NULL;
1159
1160     return tiling_do_navi_next(ws, reg, nh, FALSE, any);
1161 }
1162
1163
1164 /*EXTL_DOC
1165  * Return the most previously active region on \var{ws} with no
1166  * other regions next to it in  direction \var{dirstr}
1167  * (\codestr{left}, \codestr{right}, \codestr{up}, or \codestr{down}).
1168  * If \var{any} is not set, the status display is not considered.
1169  */
1170 EXTL_SAFE
1171 EXTL_EXPORT_MEMBER
1172 WRegion *tiling_farthest(WTiling *ws, const char *dirstr, bool any)
1173 {
1174     WRegionNavi nh;
1175
1176     if(!ioncore_string_to_navi(dirstr, &nh))
1177         return NULL;
1178
1179     return tiling_do_navi_first(ws, nh, any);
1180 }
1181
1182
1183 /*EXTL_DOC
1184  * For region \var{reg} managed by \var{ws} return the \type{WSplit}
1185  * a leaf of which \var{reg} is.
1186  */
1187 EXTL_SAFE
1188 EXTL_EXPORT_MEMBER
1189 WSplitRegion *tiling_node_of(WTiling *ws, WRegion *reg)
1190 {
1191     if(reg==NULL){
1192         warn(TR("Nil parameter."));
1193         return NULL;
1194     }
1195
1196     if(REGION_MANAGER(reg)!=(WRegion*)ws){
1197         warn(TR("Manager doesn't match."));
1198         return NULL;
1199     }
1200
1201     return splittree_node_of(reg);
1202 }
1203
1204
1205 /*}}}*/
1206
1207
1208 /*{{{ Flip and transpose */
1209
1210
1211 static WSplitSplit *get_at_split(WTiling *ws, WRegion *reg)
1212 {
1213     WSplit *node;
1214     WSplitSplit *split;
1215
1216     if(reg==NULL){
1217         split=OBJ_CAST(ws->split_tree, WSplitSplit);
1218         if(split==NULL)
1219             return NULL;
1220         else if(split->br==(WSplit*)ws->stdispnode)
1221             return OBJ_CAST(split->tl, WSplitSplit);
1222         else if(split->tl==(WSplit*)ws->stdispnode)
1223             return OBJ_CAST(split->br, WSplitSplit);
1224         else
1225             return split;
1226     }
1227
1228     node=(WSplit*)get_node_check(ws, reg);
1229
1230     if(node==NULL)
1231         return NULL;
1232
1233     if(node==(WSplit*)ws->stdispnode){
1234         warn(TR("The status display is not a valid parameter for "
1235                 "this routine."));
1236         return NULL;
1237     }
1238
1239     split=OBJ_CAST(node->parent, WSplitSplit);
1240
1241     if(split!=NULL && (split->tl==(WSplit*)ws->stdispnode ||
1242                        split->br==(WSplit*)ws->stdispnode)){
1243         split=OBJ_CAST(((WSplit*)split)->parent, WSplitSplit);
1244     }
1245
1246     return split;
1247 }
1248
1249
1250 /*EXTL_DOC
1251  * Flip \var{ws} at \var{reg} or root if nil.
1252  */
1253 EXTL_EXPORT_MEMBER
1254 bool iowns_flip_at(WTiling *ws, WRegion *reg)
1255 {
1256     WSplitSplit *split=get_at_split(ws, reg);
1257
1258     if(split==NULL){
1259         return FALSE;
1260     }else{
1261         splitsplit_flip(split);
1262         return TRUE;
1263     }
1264 }
1265
1266
1267 /*EXTL_DOC
1268  * Transpose \var{ws} at \var{reg} or root if nil.
1269  */
1270 EXTL_EXPORT_MEMBER
1271 bool iowns_transpose_at(WTiling *ws, WRegion *reg)
1272 {
1273     WSplitSplit *split=get_at_split(ws, reg);
1274
1275     if(split==NULL){
1276         return FALSE;
1277     }else{
1278         split_transpose((WSplit*)split);
1279         return TRUE;
1280     }
1281 }
1282
1283
1284 /*}}}*/
1285
1286
1287 /*{{{ Floating toggle */
1288
1289
1290 static void replace(WSplitSplit *split, WSplitSplit *nsplit)
1291 {
1292     WSplitInner *psplit=split->isplit.split.parent;
1293
1294     nsplit->tl=split->tl;
1295     split->tl=NULL;
1296     nsplit->tl->parent=(WSplitInner*)nsplit;
1297
1298     nsplit->br=split->br;
1299     split->br=NULL;
1300     nsplit->br->parent=(WSplitInner*)nsplit;
1301
1302     if(psplit!=NULL){
1303         splitinner_replace((WSplitInner*)psplit, (WSplit*)split,
1304                            (WSplit*)nsplit);
1305     }else{
1306         splittree_changeroot((WSplit*)split, (WSplit*)nsplit);
1307     }
1308 }
1309
1310
1311 WSplitSplit *tiling_set_floating(WTiling *ws, WSplitSplit *split, int sp)
1312 {
1313     bool set=OBJ_IS(split, WSplitFloat);
1314     bool nset=libtu_do_setparam(sp, set);
1315     const WRectangle *g=&((WSplit*)split)->geom;
1316     WSplitSplit *ns;
1317
1318     if(!XOR(nset, set))
1319         return split;
1320
1321     if(nset){
1322         ns=(WSplitSplit*)create_splitfloat(g, ws, split->dir);
1323     }else{
1324         if(OBJ_IS(split->tl, WSplitST) || OBJ_IS(split->br, WSplitST)){
1325             warn(TR("Refusing to float split directly containing the "
1326                     "status display."));
1327             return NULL;
1328         }
1329         ns=create_splitsplit(g, split->dir);
1330     }
1331
1332     if(ns!=NULL){
1333         replace(split, ns);
1334         split_resize((WSplit*)ns, g, PRIMN_ANY, PRIMN_ANY);
1335         mainloop_defer_destroy((Obj*)split);
1336     }
1337
1338     return ns;
1339 }
1340
1341
1342 /*EXTL_DOC
1343  * Toggle floating of a split's sides at \var{split} as indicated by the
1344  * parameter \var{how} (\codestr{set}, \codestr{unset}, or \codestr{toggle}).
1345  * A split of the appropriate is returned, if there was a change.
1346  */
1347 EXTL_EXPORT_AS(WTiling, set_floating)
1348 WSplitSplit *tiling_set_floating_extl(WTiling *ws, WSplitSplit *split,
1349                                      const char *how)
1350 {
1351     if(!check_node(ws, (WSplit*)split))
1352         return NULL;
1353     return tiling_set_floating(ws, split, libtu_string_to_setparam(how));
1354 }
1355
1356
1357 /*EXTL_DOC
1358  * Toggle floating of the sides of a split containin \var{reg} as indicated
1359  * by the parameters \var{how} (\codestr{set}, \codestr{unset}, or
1360  * \codestr{toggle}) and \var{dirstr} (\codestr{left}, \codestr{right},
1361  * \codestr{up}, or \codestr{down}). The new status is returned
1362  * (and \code{false} also on error).
1363  */
1364 EXTL_EXPORT_AS(WTiling, set_floating_at)
1365 bool tiling_set_floating_at_extl(WTiling *ws, WRegion *reg, const char *how,
1366                                 const char *dirstr)
1367 {
1368     WPrimn hprimn=PRIMN_ANY, vprimn=PRIMN_ANY;
1369     WSplitSplit *split, *nsplit;
1370     WSplit *node;
1371
1372     node=(WSplit*)get_node_check(ws, reg);
1373     if(node==NULL)
1374         return FALSE;
1375
1376
1377     if(dirstr!=NULL){
1378         WRegionNavi nh;
1379
1380         if(!ioncore_string_to_navi(dirstr, &nh))
1381             return FALSE;
1382
1383         navi_to_primn(nh, &hprimn, &vprimn, PRIMN_NONE);
1384     }
1385
1386     while(TRUE){
1387         split=OBJ_CAST(node->parent, WSplitSplit);
1388         if(split==NULL){
1389             warn(TR("No suitable split here."));
1390             return FALSE;
1391         }
1392
1393         if(!OBJ_IS(split->tl, WSplitST) && !OBJ_IS(split->br, WSplitST)){
1394             WPrimn tmp=(split->dir==SPLIT_VERTICAL ? vprimn : hprimn);
1395             if(tmp==PRIMN_ANY
1396                || (node==split->tl && tmp==PRIMN_BR)
1397                || (node==split->br && tmp==PRIMN_TL)){
1398                 break;
1399             }
1400         }
1401
1402         node=(WSplit*)split;
1403     }
1404
1405     nsplit=tiling_set_floating(ws, split, libtu_string_to_setparam(how));
1406
1407     return OBJ_IS((Obj*)(nsplit==NULL ? split : nsplit), WSplitFloat);
1408 }
1409
1410
1411 /*}}}*/
1412
1413
1414 /*{{{ Save */
1415
1416
1417 ExtlTab tiling_get_configuration(WTiling *ws)
1418 {
1419     ExtlTab tab, split_tree=extl_table_none();
1420
1421     tab=region_get_base_configuration((WRegion*)ws);
1422
1423     if(ws->split_tree!=NULL){
1424         if(!split_get_config(ws->split_tree, &split_tree))
1425             warn(TR("Could not get split tree."));
1426     }
1427
1428     extl_table_sets_t(tab, "split_tree", split_tree);
1429     extl_unref_table(split_tree);
1430
1431     return tab;
1432 }
1433
1434
1435 /*}}}*/
1436
1437
1438 /*{{{ Load */
1439
1440
1441 WSplit *load_splitst(WTiling *ws, const WRectangle *geom, ExtlTab tab)
1442 {
1443     WSplitST *st;
1444
1445     if(ws->stdispnode!=NULL){
1446         warn(TR("Workspace already has a status display node."));
1447         return NULL;
1448     }
1449
1450     st=create_splitst(geom, NULL);
1451     ws->stdispnode=st;
1452     return (WSplit*)st;
1453 }
1454
1455
1456 static bool do_attach(WTiling *ws, WRegion *reg, void *p)
1457 {
1458     WSplitRegion *node=create_splitregion(&REGION_GEOM(reg), reg);
1459
1460     if(node==NULL)
1461         return FALSE;
1462
1463     if(!tiling_managed_add(ws, reg)){
1464         node->reg=NULL;
1465         destroy_obj((Obj*)node);
1466         return FALSE;
1467     }
1468
1469     *(WSplitRegion**)p=node;
1470
1471     return TRUE;
1472 }
1473
1474
1475 WSplit *load_splitregion(WTiling *ws, const WRectangle *geom, ExtlTab tab)
1476 {
1477     WWindow *par=REGION_PARENT(ws);
1478     WRegionAttachData data;
1479     WSplit *node=NULL;
1480     WFitParams fp;
1481     ExtlTab rt;
1482
1483     if(!extl_table_gets_t(tab, "regparams", &rt)){
1484         warn(TR("Missing region parameters."));
1485         return NULL;
1486     }
1487
1488     data.type=REGION_ATTACH_LOAD;
1489     data.u.tab=rt;
1490
1491     assert(par!=NULL);
1492     fp.g=*geom;
1493     fp.mode=REGION_FIT_EXACT;
1494
1495     region_attach_helper((WRegion*)ws, par, &fp,
1496                          (WRegionDoAttachFn*)do_attach, &node, &data);
1497
1498     extl_unref_table(rt);
1499
1500     return node;
1501 }
1502
1503
1504 #define MINS 1
1505
1506 WSplit *load_splitsplit(WTiling *ws, const WRectangle *geom, ExtlTab tab)
1507 {
1508     WSplit *tl=NULL, *br=NULL;
1509     WSplitSplit *split;
1510     char *dir_str;
1511     int dir, brs, tls;
1512     ExtlTab subtab;
1513     WRectangle geom2;
1514     int set=0;
1515
1516     set+=(extl_table_gets_i(tab, "tls", &tls)==TRUE);
1517     set+=(extl_table_gets_i(tab, "brs", &brs)==TRUE);
1518     set+=(extl_table_gets_s(tab, "dir", &dir_str)==TRUE);
1519
1520     if(set!=3)
1521         return NULL;
1522
1523     if(strcmp(dir_str, "vertical")==0){
1524         dir=SPLIT_VERTICAL;
1525     }else if(strcmp(dir_str, "horizontal")==0){
1526         dir=SPLIT_HORIZONTAL;
1527     }else{
1528         warn(TR("Invalid direction."));
1529         free(dir_str);
1530         return NULL;
1531     }
1532     free(dir_str);
1533
1534     split=create_splitsplit(geom, dir);
1535     if(split==NULL)
1536         return NULL;
1537
1538     tls=maxof(tls, MINS);
1539     brs=maxof(brs, MINS);
1540
1541     geom2=*geom;
1542     if(dir==SPLIT_HORIZONTAL){
1543         tls=maxof(0, geom->w)*tls/(tls+brs);
1544         geom2.w=tls;
1545     }else{
1546         tls=maxof(0, geom->h)*tls/(tls+brs);
1547         geom2.h=tls;
1548     }
1549
1550     if(extl_table_gets_t(tab, "tl", &subtab)){
1551         tl=tiling_load_node(ws, &geom2, subtab);
1552         extl_unref_table(subtab);
1553     }
1554
1555     geom2=*geom;
1556     if(dir==SPLIT_HORIZONTAL){
1557         geom2.w-=tls;
1558         geom2.x+=tls;
1559     }else{
1560         geom2.h-=tls;
1561         geom2.y+=tls;
1562     }
1563
1564     if(extl_table_gets_t(tab, "br", &subtab)){
1565         br=tiling_load_node(ws, &geom2, subtab);
1566         extl_unref_table(subtab);
1567     }
1568
1569     if(tl==NULL || br==NULL){
1570         /* PRIMN_TL/BR instead of ANY because of stdisp. */
1571         destroy_obj((Obj*)split);
1572         if(tl!=NULL){
1573             split_do_resize(tl, geom, PRIMN_BR, PRIMN_BR, FALSE);
1574             return tl;
1575         }
1576         if(br!=NULL){
1577             split_do_resize(br, geom, PRIMN_TL, PRIMN_TL, FALSE);
1578             return br;
1579         }
1580         return NULL;
1581     }
1582
1583     tl->parent=(WSplitInner*)split;
1584     br->parent=(WSplitInner*)split;
1585
1586     /*split->tmpsize=tls;*/
1587     split->tl=tl;
1588     split->br=br;
1589
1590     return (WSplit*)split;
1591 }
1592
1593
1594 WSplit *tiling_load_node_default(WTiling *ws, const WRectangle *geom,
1595                                 ExtlTab tab)
1596 {
1597     char *typestr=NULL;
1598     WSplit *node=NULL;
1599
1600     extl_table_gets_s(tab, "type", &typestr);
1601
1602     if(typestr==NULL){
1603         warn(TR("No split type given."));
1604         return NULL;
1605     }
1606
1607     if(strcmp(typestr, "WSplitRegion")==0)
1608         node=load_splitregion(ws, geom, tab);
1609     else if(strcmp(typestr, "WSplitSplit")==0)
1610         node=load_splitsplit(ws, geom, tab);
1611     else if(strcmp(typestr, "WSplitFloat")==0)
1612         node=load_splitfloat(ws, geom, tab);
1613     else if(strcmp(typestr, "WSplitST")==0)
1614         node=NULL;/*load_splitst(ws, geom, tab);*/
1615     else
1616         warn(TR("Unknown split type."));
1617
1618     free(typestr);
1619
1620     return node;
1621 }
1622
1623
1624 WSplit *tiling_load_node(WTiling *ws, const WRectangle *geom, ExtlTab tab)
1625 {
1626     WSplit *ret=NULL;
1627     CALL_DYN_RET(ret, WSplit*, tiling_load_node, ws, (ws, geom, tab));
1628     return ret;
1629 }
1630
1631
1632
1633 WRegion *tiling_load(WWindow *par, const WFitParams *fp, ExtlTab tab)
1634 {
1635     WTiling *ws;
1636     ExtlTab treetab;
1637     bool ci=TRUE;
1638
1639     if(extl_table_gets_t(tab, "split_tree", &treetab))
1640         ci=FALSE;
1641
1642     ws=create_tiling(par, fp, NULL, ci);
1643
1644     if(ws==NULL){
1645         if(!ci)
1646             extl_unref_table(treetab);
1647         return NULL;
1648     }
1649
1650     if(!ci){
1651         ws->split_tree=tiling_load_node(ws, &REGION_GEOM(ws), treetab);
1652         extl_unref_table(treetab);
1653     }
1654
1655     if(ws->split_tree==NULL){
1656         warn(TR("The workspace is empty."));
1657         destroy_obj((Obj*)ws);
1658         return NULL;
1659     }
1660
1661     ws->split_tree->ws_if_root=ws;
1662     split_restack(ws->split_tree, ws->dummywin, Above);
1663
1664     return (WRegion*)ws;
1665 }
1666
1667
1668 /*}}}*/
1669
1670
1671 /*{{{ Dynamic function table and class implementation */
1672
1673
1674 static DynFunTab tiling_dynfuntab[]={
1675     {region_map,
1676      tiling_map},
1677
1678     {region_unmap,
1679      tiling_unmap},
1680
1681     {region_do_set_focus,
1682      tiling_do_set_focus},
1683
1684     {(DynFun*)region_fitrep,
1685      (DynFun*)tiling_fitrep},
1686
1687     {region_managed_rqgeom,
1688      tiling_managed_rqgeom},
1689
1690     {region_managed_remove,
1691      tiling_managed_remove},
1692
1693     {(DynFun*)region_managed_prepare_focus,
1694      (DynFun*)tiling_managed_prepare_focus},
1695
1696     {(DynFun*)region_prepare_manage,
1697      (DynFun*)tiling_prepare_manage},
1698
1699     {(DynFun*)region_rescue_clientwins,
1700      (DynFun*)tiling_rescue_clientwins},
1701
1702     {(DynFun*)region_get_rescue_pholder_for,
1703      (DynFun*)tiling_get_rescue_pholder_for},
1704
1705     {(DynFun*)region_get_configuration,
1706      (DynFun*)tiling_get_configuration},
1707
1708     {(DynFun*)region_managed_disposeroot,
1709      (DynFun*)tiling_managed_disposeroot},
1710
1711     {(DynFun*)region_current,
1712      (DynFun*)tiling_current},
1713
1714     {(DynFun*)tiling_managed_add,
1715      (DynFun*)tiling_managed_add_default},
1716
1717     {region_manage_stdisp,
1718      tiling_manage_stdisp},
1719
1720     {region_unmanage_stdisp,
1721      tiling_unmanage_stdisp},
1722
1723     {(DynFun*)tiling_load_node,
1724      (DynFun*)tiling_load_node_default},
1725
1726     {region_restack,
1727      tiling_restack},
1728
1729     {region_stacking,
1730      tiling_stacking},
1731
1732     {(DynFun*)region_navi_first,
1733      (DynFun*)tiling_navi_first},
1734
1735     {(DynFun*)region_navi_next,
1736      (DynFun*)tiling_navi_next},
1737
1738     {(DynFun*)region_xwindow,
1739      (DynFun*)tiling_xwindow},
1740
1741     END_DYNFUNTAB
1742 };
1743
1744
1745 EXTL_EXPORT
1746 IMPLCLASS(WTiling, WRegion, tiling_deinit, tiling_dynfuntab);
1747
1748
1749 /*}}}*/
1750