gri3-wm/include/xcb.h

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/*
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* vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
*
* (c) 2009 Michael Stapelberg and contributors
*
* See file LICENSE for license information.
*
*/
#ifndef _XCB_H
#define _XCB_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
#define _NET_WM_STATE_ADD 1
#define _NET_WM_STATE_TOGGLE 2
/** This is the equivalent of XC_left_ptr. Im not sure why xcb doesnt have a
* constant for that. */
#define XCB_CURSOR_LEFT_PTR 68
#define XCB_CURSOR_SB_H_DOUBLE_ARROW 108
#define XCB_CURSOR_SB_V_DOUBLE_ARROW 116
/* from X11/keysymdef.h */
#define XCB_NUM_LOCK 0xff7f
/* The event masks are defined here because we dont only set them once but we
need to set slight variations of them (without XCB_EVENT_MASK_ENTER_WINDOW
while rendering the layout) */
/** The XCB_CW_EVENT_MASK for the child (= real window) */
#define CHILD_EVENT_MASK (XCB_EVENT_MASK_PROPERTY_CHANGE | \
XCB_EVENT_MASK_STRUCTURE_NOTIFY)
/** The XCB_CW_EVENT_MASK for its frame */
#define FRAME_EVENT_MASK (XCB_EVENT_MASK_BUTTON_PRESS | /* …mouse is pressed/released */ \
XCB_EVENT_MASK_BUTTON_RELEASE | \
XCB_EVENT_MASK_POINTER_MOTION | /* …mouse is moved */ \
XCB_EVENT_MASK_EXPOSURE | /* …our window needs to be redrawn */ \
XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* …the frame gets destroyed */ \
XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | /* …the application tries to resize itself */ \
XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | /* …subwindows get notifies */ \
XCB_EVENT_MASK_ENTER_WINDOW) /* …user moves cursor inside our window */
#define xmacro(atom) xcb_atom_t A_ ## atom;
#include "atoms.xmacro"
#undef xmacro
extern unsigned int xcb_numlock_mask;
/**
* Loads a font for usage, also getting its height. If fallback is true,
* i3 loads 'fixed' or '-misc-*' if the font cannot be found instead of
* exiting.
*
*/
i3Font load_font(const char *pattern, bool fallback);
/**
* Returns the colorpixel to use for the given hex color (think of HTML).
*
* The hex_color has to start with #, for example #FF00FF.
*
* NOTE that get_colorpixel() does _NOT_ check the given color code for
* validity. This has to be done by the caller.
*
*/
uint32_t get_colorpixel(char *hex);
/**
* Convenience wrapper around xcb_create_window which takes care of depth,
* generating an ID and checking for errors.
*
*/
xcb_window_t create_window(xcb_connection_t *conn, Rect r, uint16_t window_class,
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enum xcursor_cursor_t cursor, bool map, uint32_t mask, uint32_t *values);
/**
* Changes a single value in the graphic context (so one doesnt have to
* define an array of values)
*
*/
void xcb_change_gc_single(xcb_connection_t *conn, xcb_gcontext_t gc,
uint32_t mask, uint32_t value);
/**
* Draws a line from x,y to to_x,to_y using the given color
*
*/
void xcb_draw_line(xcb_connection_t *conn, xcb_drawable_t drawable,
xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x,
uint32_t y, uint32_t to_x, uint32_t to_y);
/**
* Draws a rectangle from x,y with width,height using the given color
*
*/
void xcb_draw_rect(xcb_connection_t *conn, xcb_drawable_t drawable,
xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x,
uint32_t y, uint32_t width, uint32_t height);
/**
* Generates a configure_notify event and sends it to the given window
* Applications need this to think theyve configured themselves correctly.
* The truth is, however, that we will manage them.
*
*/
void fake_configure_notify(xcb_connection_t *conn, Rect r, xcb_window_t window);
/**
* Generates a configure_notify_event with absolute coordinates (relative to
* the X root window, not to the clients frame) for the given client.
*
*/
void fake_absolute_configure_notify(Con *con);
/**
* Sends the WM_TAKE_FOCUS ClientMessage to the given window
*
*/
void send_take_focus(xcb_window_t window);
/**
* Finds out which modifier mask is the one for numlock, as the user may
* change this.
*
*/
void xcb_get_numlock_mask(xcb_connection_t *conn);
/**
* Raises the given window (typically client->frame) above all other windows
*
*/
void xcb_raise_window(xcb_connection_t *conn, xcb_window_t window);
/**
* Calculate the width of the given text (16-bit characters, UCS) with given
* real length (amount of glyphs) using the given font.
*
*/
int predict_text_width(char *text, int length);
/**
* Configures the given window to have the size/position specified by given rect
*
*/
void xcb_set_window_rect(xcb_connection_t *conn, xcb_window_t window, Rect r);
bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom);
#endif