2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009-2010 Michael Stapelberg and contributors (see also: LICENSE)
7 * con.c contains all functions which deal with containers directly (creating
8 * containers, searching containers, getting specific properties from
27 static void con_on_remove_child(Con *con);
30 * Create a new container (and attach it to the given parent, if not NULL).
31 * This function initializes the data structures and creates the appropriate
32 * X11 IDs using x_con_init().
35 Con *con_new(Con *parent) {
36 Con *new = scalloc(sizeof(Con));
37 new->on_remove_child = con_on_remove_child;
38 TAILQ_INSERT_TAIL(&all_cons, new, all_cons);
40 new->border_style = config.default_border;
42 DLOG("opening window %d\n", cnt);
44 /* TODO: remove window coloring after test-phase */
45 DLOG("color %s\n", colors[cnt]);
46 new->name = strdup(colors[cnt]);
47 //uint32_t cp = get_colorpixel(colors[cnt]);
49 if ((cnt % (sizeof(colors) / sizeof(char*))) == 0)
54 // TODO: this needs to be integrated into src/x.c and updated on config file reloads
55 xcb_change_window_attributes(conn, new->frame, XCB_CW_BACK_PIXEL, &config.client.background);
57 TAILQ_INIT(&(new->floating_head));
58 TAILQ_INIT(&(new->nodes_head));
59 TAILQ_INIT(&(new->focus_head));
60 TAILQ_INIT(&(new->swallow_head));
63 /* Set layout of ws if this is the first child of the ws and the user
64 * wanted something different than the default layout. */
65 if (parent->type == CT_WORKSPACE &&
66 con_is_leaf(parent) &&
67 config.default_layout != L_DEFAULT) {
68 con_set_layout(new, config.default_layout);
69 con_attach(new, parent, false);
70 con_set_layout(parent, config.default_layout);
72 con_attach(new, parent, false);
80 * Attaches the given container to the given parent. This happens when moving
81 * a container or when inserting a new container at a specific place in the
84 * ignore_focus is to just insert the Con at the end (useful when creating a
85 * new split container *around* some containers, that is, detaching and
86 * attaching them in order without wanting to mess with the focus in between).
89 void con_attach(Con *con, Con *parent, bool ignore_focus) {
93 struct nodes_head *nodes_head = &(parent->nodes_head);
95 /* Workspaces are handled differently: they need to be inserted at the
97 if (con->type == CT_WORKSPACE) {
98 DLOG("it's a workspace. num = %d\n", con->num);
99 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
100 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
102 current = TAILQ_FIRST(nodes_head);
103 if (con->num < current->num) {
104 /* we need to insert the container at the beginning */
105 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
107 while (current->num != -1 && con->num > current->num) {
108 current = TAILQ_NEXT(current, nodes);
109 if (current == TAILQ_END(nodes_head)) {
114 /* we need to insert con after current, if current is not NULL */
116 TAILQ_INSERT_BEFORE(current, con, nodes);
117 else TAILQ_INSERT_TAIL(nodes_head, con, nodes);
120 goto add_to_focus_head;
123 if (con->type == CT_FLOATING_CON) {
124 DLOG("Inserting into floating containers\n");
125 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
128 /* Get the first tiling container in focus stack */
129 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
130 if (loop->type == CT_FLOATING_CON)
137 /* Insert the container after the tiling container, if found.
138 * When adding to a CT_OUTPUT, just append one after another. */
139 if (current && parent->type != CT_OUTPUT) {
140 DLOG("Inserting con = %p after last focused tiling con %p\n",
142 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
143 } else TAILQ_INSERT_TAIL(nodes_head, con, nodes);
147 /* We insert to the TAIL because con_focus() will correct this.
148 * This way, we have the option to insert Cons without having
150 TAILQ_INSERT_TAIL(&(parent->focus_head), con, focused);
154 * Detaches the given container from its current parent
157 void con_detach(Con *con) {
158 if (con->type == CT_FLOATING_CON) {
159 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
160 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
162 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
163 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
168 * Sets input focus to the given container. Will be updated in X11 in the next
169 * run of x_push_changes().
172 void con_focus(Con *con) {
174 DLOG("con_focus = %p\n", con);
176 /* 1: set focused-pointer to the new con */
177 /* 2: exchange the position of the container in focus stack of the parent all the way up */
178 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
179 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
180 if (con->parent->parent != NULL)
181 con_focus(con->parent);
186 workspace_update_urgent_flag(con_get_workspace(con));
188 DLOG("con_focus done = %p\n", con);
192 * Returns true when this node is a leaf node (has no children)
195 bool con_is_leaf(Con *con) {
196 return TAILQ_EMPTY(&(con->nodes_head));
200 * Returns true if this node accepts a window (if the node swallows windows,
201 * it might already have swallowed enough and cannot hold any more).
204 bool con_accepts_window(Con *con) {
205 /* 1: workspaces never accept direct windows */
206 if (con->type == CT_WORKSPACE)
209 if (con->orientation != NO_ORIENTATION) {
210 DLOG("container %p does not accepts windows, orientation != NO_ORIENTATION\n", con);
214 /* TODO: if this is a swallowing container, we need to check its max_clients */
215 return (con->window == NULL);
219 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
223 Con *con_get_output(Con *con) {
225 while (result != NULL && result->type != CT_OUTPUT)
226 result = result->parent;
227 /* We must be able to get an output because focus can never be set higher
228 * in the tree (root node cannot be focused). */
229 assert(result != NULL);
234 * Gets the workspace container this node is on.
237 Con *con_get_workspace(Con *con) {
239 while (result != NULL && result->type != CT_WORKSPACE)
240 result = result->parent;
245 * Searches parenst of the given 'con' until it reaches one with the specified
246 * 'orientation'. Aborts when it comes across a floating_con.
249 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
250 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
251 Con *parent = con->parent;
252 if (parent->type == CT_FLOATING_CON)
254 while (con_orientation(parent) != orientation) {
255 DLOG("Need to go one level further up\n");
256 parent = parent->parent;
257 /* Abort when we reach a floating con */
258 if (parent && parent->type == CT_FLOATING_CON)
263 DLOG("Result: %p\n", parent);
268 * helper data structure for the breadth-first-search in
269 * con_get_fullscreen_con()
275 TAILQ_ENTRY(bfs_entry) entries;
279 * Returns the first fullscreen node below this node.
282 Con *con_get_fullscreen_con(Con *con) {
283 Con *current, *child;
285 /* TODO: is breadth-first-search really appropriate? (check as soon as
286 * fullscreen levels and fullscreen for containers is implemented) */
287 TAILQ_HEAD(bfs_head, bfs_entry) bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
288 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
290 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
292 while (!TAILQ_EMPTY(&bfs_head)) {
293 entry = TAILQ_FIRST(&bfs_head);
294 current = entry->con;
295 if (current != con && current->fullscreen_mode != CF_NONE) {
296 /* empty the queue */
297 while (!TAILQ_EMPTY(&bfs_head)) {
298 entry = TAILQ_FIRST(&bfs_head);
299 TAILQ_REMOVE(&bfs_head, entry, entries);
305 TAILQ_REMOVE(&bfs_head, entry, entries);
308 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
309 entry = smalloc(sizeof(struct bfs_entry));
311 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
314 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
315 entry = smalloc(sizeof(struct bfs_entry));
317 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
325 * Returns true if the node is floating.
328 bool con_is_floating(Con *con) {
330 DLOG("checking if con %p is floating\n", con);
331 return (con->floating >= FLOATING_AUTO_ON);
335 * Checks if the given container is either floating or inside some floating
336 * container. It returns the FLOATING_CON container.
339 Con *con_inside_floating(Con *con) {
341 if (con->type == CT_FLOATING_CON)
344 if (con->floating >= FLOATING_AUTO_ON)
347 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
350 return con_inside_floating(con->parent);
354 * Returns the container with the given client window ID or NULL if no such
358 Con *con_by_window_id(xcb_window_t window) {
360 TAILQ_FOREACH(con, &all_cons, all_cons)
361 if (con->window != NULL && con->window->id == window)
367 * Returns the container with the given frame ID or NULL if no such container
371 Con *con_by_frame_id(xcb_window_t frame) {
373 TAILQ_FOREACH(con, &all_cons, all_cons)
374 if (con->frame == frame)
380 * Returns the first container below 'con' which wants to swallow this window
384 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
387 DLOG("searching con for window %p starting at con %p\n", window, con);
388 DLOG("class == %s\n", window->class_class);
390 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
391 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
392 if (!match_matches_window(match, window))
394 if (store_match != NULL)
395 *store_match = match;
398 Con *result = con_for_window(child, window, store_match);
403 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
404 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
405 if (!match_matches_window(match, window))
407 if (store_match != NULL)
408 *store_match = match;
411 Con *result = con_for_window(child, window, store_match);
420 * Returns the number of children of this container.
423 int con_num_children(Con *con) {
427 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
434 * Updates the percent attribute of the children of the given container. This
435 * function needs to be called when a window is added or removed from a
439 void con_fix_percent(Con *con) {
441 int children = con_num_children(con);
443 // calculate how much we have distributed and how many containers
444 // with a percentage set we have
446 int children_with_percent = 0;
447 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
448 if (child->percent > 0.0) {
449 total += child->percent;
450 ++children_with_percent;
454 // if there were children without a percentage set, set to a value that
455 // will make those children proportional to all others
456 if (children_with_percent != children) {
457 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
458 if (child->percent <= 0.0) {
459 if (children_with_percent == 0)
460 total += (child->percent = 1.0);
461 else total += (child->percent = total / children_with_percent);
466 // if we got a zero, just distribute the space equally, otherwise
467 // distribute according to the proportions we got
469 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
470 child->percent = 1.0 / children;
471 } else if (total != 1.0) {
472 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
473 child->percent /= total;
478 * Toggles fullscreen mode for the given container. Fullscreen mode will not be
479 * entered when there already is a fullscreen container on this workspace.
482 void con_toggle_fullscreen(Con *con) {
483 Con *workspace, *fullscreen;
485 if (con->type == CT_WORKSPACE) {
486 DLOG("You cannot make a workspace fullscreen.\n");
490 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
491 if (con->fullscreen_mode == CF_NONE) {
492 /* 1: check if there already is a fullscreen con */
493 workspace = con_get_workspace(con);
494 if ((fullscreen = con_get_fullscreen_con(workspace)) != NULL) {
495 LOG("Not entering fullscreen mode, container (%p/%s) "
496 "already is in fullscreen mode\n",
497 fullscreen, fullscreen->name);
499 /* 2: enable fullscreen */
500 con->fullscreen_mode = CF_OUTPUT;
503 /* 1: disable fullscreen */
504 con->fullscreen_mode = CF_NONE;
506 DLOG("mode now: %d\n", con->fullscreen_mode);
508 /* update _NET_WM_STATE if this container has a window */
509 /* TODO: when a window is assigned to a container which is already
510 * fullscreened, this state needs to be pushed to the client, too */
511 if (con->window == NULL)
515 unsigned int num = 0;
517 if (con->fullscreen_mode != CF_NONE)
518 values[num++] = A__NET_WM_STATE_FULLSCREEN;
520 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
521 A__NET_WM_STATE, A_ATOM, 32, num, values);
525 * Moves the given container to the currently focused container on the given
527 * TODO: is there a better place for this function?
530 void con_move_to_workspace(Con *con, Con *workspace) {
531 if (con->type == CT_WORKSPACE) {
532 DLOG("Moving workspaces is not yet implemented.\n");
536 if (con_is_floating(con)) {
537 DLOG("Using FLOATINGCON instead\n");
541 Con *source_output = con_get_output(con),
542 *dest_output = con_get_output(workspace);
544 /* 1: save the container which is going to be focused after the current
545 * container is moved away */
546 Con *focus_next = con_next_focused(con);
548 /* 2: get the focused container of this workspace */
549 Con *next = con_descend_focused(workspace);
551 /* 3: we go up one level, but only when next is a normal container */
552 if (next->type != CT_WORKSPACE) {
553 DLOG("next originally = %p / %s / type %d\n", next, next->name, next->type);
557 /* 4: if the target container is floating, we get the workspace instead.
558 * Only tiling windows need to get inserted next to the current container.
560 Con *floatingcon = con_inside_floating(next);
561 if (floatingcon != NULL) {
562 DLOG("floatingcon, going up even further\n");
563 next = floatingcon->parent;
566 if (con->type == CT_FLOATING_CON) {
567 Con *ws = con_get_workspace(next);
568 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
572 DLOG("Re-attaching container to %p / %s\n", next, next->name);
573 /* 5: re-attach the con to the parent of this focused container */
574 Con *parent = con->parent;
576 con_attach(con, next, false);
578 /* 6: fix the percentages */
579 con_fix_percent(parent);
581 con_fix_percent(next);
583 /* 7: focus the con on the target workspace (the X focus is only updated by
584 * calling tree_render(), so for the "real" focus this is a no-op) */
587 /* 8: when moving to a visible workspace on a different output, we keep the
588 * con focused. Otherwise, we leave the focus on the current workspace as we
589 * don’t want to focus invisible workspaces */
590 if (source_output != dest_output &&
591 workspace_is_visible(workspace)) {
592 DLOG("Moved to a different output, focusing target\n");
594 con_focus(focus_next);
597 CALL(parent, on_remove_child);
601 * Returns the orientation of the given container (for stacked containers,
602 * vertical orientation is used regardless of the actual orientation of the
606 int con_orientation(Con *con) {
607 /* stacking containers behave like they are in vertical orientation */
608 if (con->layout == L_STACKED)
611 if (con->layout == L_TABBED)
614 return con->orientation;
618 * Returns the container which will be focused next when the given container
619 * is not available anymore. Called in tree_close and con_move_to_workspace
620 * to properly restore focus.
623 Con *con_next_focused(Con *con) {
625 /* floating containers are attached to a workspace, so we focus either the
626 * next floating container (if any) or the workspace itself. */
627 if (con->type == CT_FLOATING_CON) {
628 DLOG("selecting next for CT_FLOATING_CON\n");
629 next = TAILQ_NEXT(con, floating_windows);
630 if (next == TAILQ_END(&(parent->floating_head))) {
631 Con *ws = con_get_workspace(con);
633 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
634 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
635 next = TAILQ_FIRST(&(next->focus_head));
637 DLOG("skipping container itself, we want the next client\n");
638 next = TAILQ_NEXT(next, focused);
641 if (next == TAILQ_END(&(ws->focus_head))) {
642 DLOG("Focus list empty, returning ws\n");
649 /* dock clients cannot be focused, so we focus the workspace instead */
650 if (con->parent->type == CT_DOCKAREA) {
651 DLOG("selecting workspace for dock client\n");
652 return con_descend_focused(output_get_content(con->parent->parent));
655 /* if 'con' is not the first entry in the focus stack, use the first one as
656 * it’s currently focused already */
657 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
659 DLOG("Using first entry %p\n", first);
662 /* try to focus the next container on the same level as this one or fall
663 * back to its parent */
664 if (!(next = TAILQ_NEXT(con, focused)))
668 /* now go down the focus stack as far as
669 * possible, excluding the current container */
670 while (!TAILQ_EMPTY(&(next->focus_head)) &&
671 TAILQ_FIRST(&(next->focus_head)) != con)
672 next = TAILQ_FIRST(&(next->focus_head));
678 * Get the next/previous container in the specified orientation. This may
679 * travel up until it finds a container with suitable orientation.
682 Con *con_get_next(Con *con, char way, orientation_t orientation) {
683 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
684 /* 1: get the first parent with the same orientation */
686 while (con_orientation(cur->parent) != orientation) {
687 DLOG("need to go one level further up\n");
688 if (cur->parent->type == CT_WORKSPACE) {
689 LOG("that's a workspace, we can't go further up\n");
695 /* 2: chose next (or previous) */
698 next = TAILQ_NEXT(cur, nodes);
699 /* if we are at the end of the list, we need to wrap */
700 if (next == TAILQ_END(&(parent->nodes_head)))
703 next = TAILQ_PREV(cur, nodes_head, nodes);
704 /* if we are at the end of the list, we need to wrap */
705 if (next == TAILQ_END(&(cur->nodes_head)))
708 DLOG("next = %p\n", next);
714 * Returns the focused con inside this client, descending the tree as far as
715 * possible. This comes in handy when attaching a con to a workspace at the
716 * currently focused position, for example.
719 Con *con_descend_focused(Con *con) {
721 while (!TAILQ_EMPTY(&(next->focus_head)))
722 next = TAILQ_FIRST(&(next->focus_head));
727 * Returns the focused con inside this client, descending the tree as far as
728 * possible. This comes in handy when attaching a con to a workspace at the
729 * currently focused position, for example.
731 * Works like con_descend_focused but considers only tiling cons.
734 Con *con_descend_tiling_focused(Con *con) {
740 TAILQ_FOREACH(child, &(next->focus_head), focused) {
741 if (child->type == CT_FLOATING_CON)
747 } while (before != next);
753 * Returns a "relative" Rect which contains the amount of pixels that need to
754 * be added to the original Rect to get the final position (obviously the
755 * amount of pixels for normal, 1pixel and borderless are different).
758 Rect con_border_style_rect(Con *con) {
759 switch (con_border_style(con)) {
761 return (Rect){2, 0, -(2 * 2), -2};
764 return (Rect){1, 1, -2, -2};
767 return (Rect){0, 0, 0, 0};
775 * Use this function to get a container’s border style. This is important
776 * because when inside a stack, the border style is always BS_NORMAL.
777 * For tabbed mode, the same applies, with one exception: when the container is
778 * borderless and the only element in the tabbed container, the border is not
781 * For children of a CT_DOCKAREA, the border style is always none.
784 int con_border_style(Con *con) {
785 Con *fs = con_get_fullscreen_con(con->parent);
787 DLOG("this one is fullscreen! overriding BS_NONE\n");
791 if (con->parent->layout == L_STACKED)
792 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
794 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
795 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
797 if (con->parent->type == CT_DOCKAREA)
800 return con->border_style;
804 * This function changes the layout of a given container. Use it to handle
805 * special cases like changing a whole workspace to stacked/tabbed (creates a
806 * new split container before).
809 void con_set_layout(Con *con, int layout) {
810 /* When the container type is CT_WORKSPACE, the user wants to change the
811 * whole workspace into stacked/tabbed mode. To do this and still allow
812 * intuitive operations (like level-up and then opening a new window), we
813 * need to create a new split container. */
814 if (con->type == CT_WORKSPACE) {
815 DLOG("Creating new split container\n");
816 /* 1: create a new split container */
817 Con *new = con_new(NULL);
820 /* 2: set the requested layout on the split con */
821 new->layout = layout;
823 /* 3: While the layout is irrelevant in stacked/tabbed mode, it needs
824 * to be set. Otherwise, this con will not be interpreted as a split
826 if (config.default_orientation == NO_ORIENTATION) {
827 new->orientation = (con->rect.height > con->rect.width) ? VERT : HORIZ;
829 new->orientation = config.default_orientation;
832 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
833 if (old_focused == TAILQ_END(&(con->focus_head)))
836 /* 4: move the existing cons of this workspace below the new con */
837 DLOG("Moving cons\n");
839 while (!TAILQ_EMPTY(&(con->nodes_head))) {
840 child = TAILQ_FIRST(&(con->nodes_head));
842 con_attach(child, new, true);
845 /* 4: attach the new split container to the workspace */
846 DLOG("Attaching new split to ws\n");
847 con_attach(new, con, false);
850 con_focus(old_focused);
857 con->layout = layout;
861 * Callback which will be called when removing a child from the given con.
862 * Kills the container if it is empty and replaces it with the child if there
863 * is exactly one child.
866 static void con_on_remove_child(Con *con) {
867 DLOG("on_remove_child\n");
869 /* Every container 'above' (in the hierarchy) the workspace content should
870 * not be closed when the last child was removed */
871 if (con->type == CT_WORKSPACE ||
872 con->type == CT_OUTPUT ||
873 con->type == CT_ROOT ||
874 con->type == CT_DOCKAREA) {
875 DLOG("not handling, type = %d\n", con->type);
879 /* TODO: check if this container would swallow any other client and
880 * don’t close it automatically. */
881 int children = con_num_children(con);
883 DLOG("Container empty, closing\n");
884 tree_close(con, false, false);
890 * Determines the minimum size of the given con by looking at its children (for
891 * split/stacked/tabbed cons). Will be called when resizing floating cons
894 Rect con_minimum_size(Con *con) {
895 DLOG("Determining minimum size for con %p\n", con);
897 if (con_is_leaf(con)) {
898 DLOG("leaf node, returning 75x50\n");
899 return (Rect){ 0, 0, 75, 50 };
902 if (con->type == CT_FLOATING_CON) {
903 DLOG("floating con\n");
904 Con *child = TAILQ_FIRST(&(con->nodes_head));
905 return con_minimum_size(child);
908 if (con->layout == L_STACKED || con->layout == L_TABBED) {
909 uint32_t max_width = 0, max_height = 0, deco_height = 0;
911 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
912 Rect min = con_minimum_size(child);
913 deco_height += child->deco_rect.height;
914 max_width = max(max_width, min.width);
915 max_height = max(max_height, min.height);
917 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
918 max_width, max_height, deco_height);
919 return (Rect){ 0, 0, max_width, max_height + deco_height };
922 /* For horizontal/vertical split containers we sum up the width (h-split)
923 * or height (v-split) and use the maximum of the height (h-split) or width
924 * (v-split) as minimum size. */
925 if (con->orientation == HORIZ || con->orientation == VERT) {
926 uint32_t width = 0, height = 0;
928 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
929 Rect min = con_minimum_size(child);
930 if (con->orientation == HORIZ) {
932 height = max(height, min.height);
934 height += min.height;
935 width = max(width, min.width);
938 DLOG("split container, returning width = %d x height = %d\n", width, height);
939 return (Rect){ 0, 0, width, height };
942 ELOG("Unhandled case, type = %d, layout = %d, orientation = %d\n",
943 con->type, con->layout, con->orientation);