101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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* © 2009 Michael Stapelberg and contributors (see also: LICENSE)
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*
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* tree.c: Everything that primarily modifies the layout tree data structure.
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*
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*/
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#pragma once
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extern Con *croot;
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/* TODO: i am not sure yet how much access to the focused container should
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* be permitted to source files */
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extern Con *focused;
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TAILQ_HEAD(all_cons_head, Con);
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extern struct all_cons_head all_cons;
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/**
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* Initializes the tree by creating the root node, adding all RandR outputs
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* to the tree (that means randr_init() has to be called before) and
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* assigning a workspace to each RandR output.
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*
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*/
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void tree_init(xcb_get_geometry_reply_t *geometry);
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/**
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* Opens an empty container in the current container
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*
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*/
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Con *tree_open_con(Con *con, i3Window *window);
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/**
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* Splits (horizontally or vertically) the given container by creating a new
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* container which contains the old one and the future ones.
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*
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*/
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void tree_split(Con *con, orientation_t orientation);
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/**
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* Moves focus one level up. Returns true if focus changed.
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*
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*/
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bool level_up(void);
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/**
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* Moves focus one level down. Returns true if focus changed.
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*
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*/
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bool level_down(void);
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/**
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* Renders the tree, that is rendering all outputs using render_con() and
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* pushing the changes to X11 using x_push_changes().
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*
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*/
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void tree_render(void);
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/**
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* Changes focus in the given way (next/previous) and given orientation
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* (horizontal/vertical).
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*
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*/
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void tree_next(char way, orientation_t orientation);
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/**
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* Closes the given container including all children.
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* Returns true if the container was killed or false if just WM_DELETE was sent
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* and the window is expected to kill itself.
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*
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* The dont_kill_parent flag is specified when the function calls itself
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* recursively while deleting a containers children.
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*
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* The force_set_focus flag is specified in the case of killing a floating
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* window: tree_close_internal() will be invoked for the CT_FLOATINGCON (the parent
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* container) and focus should be set there.
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*
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*/
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bool tree_close_internal(Con *con, kill_window_t kill_window, bool dont_kill_parent, bool force_set_focus);
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/**
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* Loads tree from ~/.i3/_restart.json (used for in-place restarts).
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*
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*/
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bool tree_restore(const char *path, xcb_get_geometry_reply_t *geometry);
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/**
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* tree_flatten() removes pairs of redundant split containers, e.g.:
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* [workspace, horizontal]
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* [v-split] [child3]
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* [h-split]
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* [child1] [child2]
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* In this example, the v-split and h-split container are redundant.
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* Such a situation can be created by moving containers in a direction which is
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* not the orientation of their parent container. i3 needs to create a new
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* split container then and if you move containers this way multiple times,
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* redundant chains of split-containers can be the result.
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*
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*/
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void tree_flatten(Con *child);
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