150 lines
5.4 KiB
C
150 lines
5.4 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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* xcb.c: Helper functions for easier usage of XCB
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*
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*/
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#pragma once
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#include <config.h>
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#include "data.h"
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#include "xcursor.h"
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#define _NET_WM_STATE_REMOVE 0
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#define _NET_WM_STATE_ADD 1
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#define _NET_WM_STATE_TOGGLE 2
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/** This is the equivalent of XC_left_ptr. I’m not sure why xcb doesn’t have a
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* constant for that. */
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#define XCB_CURSOR_LEFT_PTR 68
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#define XCB_CURSOR_SB_H_DOUBLE_ARROW 108
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#define XCB_CURSOR_SB_V_DOUBLE_ARROW 116
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#define XCB_CURSOR_WATCH 150
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/* from X11/keysymdef.h */
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#define XCB_NUM_LOCK 0xff7f
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/* The event masks are defined here because we don’t only set them once but we
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need to set slight variations of them (without XCB_EVENT_MASK_ENTER_WINDOW
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while rendering the layout) */
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/** The XCB_CW_EVENT_MASK for the child (= real window) */
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#define CHILD_EVENT_MASK (XCB_EVENT_MASK_PROPERTY_CHANGE | \
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XCB_EVENT_MASK_STRUCTURE_NOTIFY | \
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XCB_EVENT_MASK_FOCUS_CHANGE)
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/** The XCB_CW_EVENT_MASK for its frame */
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#define FRAME_EVENT_MASK (XCB_EVENT_MASK_BUTTON_PRESS | /* …mouse is pressed/released */ \
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XCB_EVENT_MASK_BUTTON_RELEASE | \
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XCB_EVENT_MASK_POINTER_MOTION | /* …mouse is moved */ \
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XCB_EVENT_MASK_EXPOSURE | /* …our window needs to be redrawn */ \
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XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* …the frame gets destroyed */ \
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XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | /* …the application tries to resize itself */ \
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XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | /* …subwindows get notifies */ \
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XCB_EVENT_MASK_ENTER_WINDOW) /* …user moves cursor inside our window */
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#define ROOT_EVENT_MASK (XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | \
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XCB_EVENT_MASK_BUTTON_PRESS | \
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XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* when the user adds a screen (e.g. video \
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projector), the root window gets a \
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ConfigureNotify */ \
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XCB_EVENT_MASK_POINTER_MOTION | \
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XCB_EVENT_MASK_PROPERTY_CHANGE | \
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XCB_EVENT_MASK_FOCUS_CHANGE | \
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XCB_EVENT_MASK_ENTER_WINDOW)
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#define xmacro(atom) extern xcb_atom_t A_##atom;
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#include "atoms.xmacro"
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#undef xmacro
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extern unsigned int xcb_numlock_mask;
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/**
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* Convenience wrapper around xcb_create_window which takes care of depth,
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* generating an ID and checking for errors.
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*
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*/
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xcb_window_t create_window(xcb_connection_t *conn, Rect r, uint16_t depth, xcb_visualid_t visual,
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uint16_t window_class, enum xcursor_cursor_t cursor, bool map, uint32_t mask, uint32_t *values);
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/**
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* Generates a configure_notify_event with absolute coordinates (relative to
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* the X root window, not to the client’s frame) for the given client.
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*
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*/
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void fake_absolute_configure_notify(Con *con);
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/**
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* Sends the WM_TAKE_FOCUS ClientMessage to the given window
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*
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*/
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void send_take_focus(xcb_window_t window, xcb_timestamp_t timestamp);
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/**
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* Configures the given window to have the size/position specified by given rect
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*
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*/
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void xcb_set_window_rect(xcb_connection_t *conn, xcb_window_t window, Rect r);
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/**
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* Returns the first supported _NET_WM_WINDOW_TYPE atom.
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*
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*/
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xcb_atom_t xcb_get_preferred_window_type(xcb_get_property_reply_t *reply);
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/**
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* Returns true if the given reply contains the given data.
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*
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*/
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bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom);
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/**
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* Set the cursor of the root window to the given cursor id.
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* This function should only be used if xcursor_supported == false.
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* Otherwise, use xcursor_set_root_cursor().
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*
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*/
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void xcb_set_root_cursor(int cursor);
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/**
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* Get depth of visual specified by visualid
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*
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*/
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uint16_t get_visual_depth(xcb_visualid_t visual_id);
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/**
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* Get visual type specified by visualid
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*
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*/
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xcb_visualtype_t *get_visualtype_by_id(xcb_visualid_t visual_id);
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/**
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* Get visualid with specified depth
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*
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*/
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xcb_visualid_t get_visualid_by_depth(uint16_t depth);
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/**
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* Add an atom to a list of atoms the given property defines.
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* This is useful, for example, for manipulating _NET_WM_STATE.
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*
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*/
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void xcb_add_property_atom(xcb_connection_t *conn, xcb_window_t window, xcb_atom_t property, xcb_atom_t atom);
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/**
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* Remove an atom from a list of atoms the given property defines without
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* removing any other potentially set atoms. This is useful, for example, for
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* manipulating _NET_WM_STATE.
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*
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*/
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void xcb_remove_property_atom(xcb_connection_t *conn, xcb_window_t window, xcb_atom_t property, xcb_atom_t atom);
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/**
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* Grab the specified buttons on a window when managing it.
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*
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*/
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void xcb_grab_buttons(xcb_connection_t *conn, xcb_window_t window, int *buttons);
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