309 lines
9.7 KiB
C
309 lines
9.7 KiB
C
/*
|
||
* vim:ts=8:expandtab
|
||
*
|
||
* i3 - an improved dynamic tiling window manager
|
||
*
|
||
* (c) 2009 Michael Stapelberg and contributors
|
||
*
|
||
* See file LICENSE for license information.
|
||
*
|
||
* include/data.h: This file defines all data structures used by i3
|
||
*
|
||
*/
|
||
#include <xcb/xcb.h>
|
||
#include <stdbool.h>
|
||
|
||
#ifndef _DATA_H
|
||
#define _DATA_H
|
||
#include "queue.h"
|
||
|
||
/*
|
||
* To get the big concept: There are helper structures like struct Colorpixel or
|
||
* struct Stack_Window. Everything which is also defined as type (see forward definitions)
|
||
* is considered to be a major structure, thus important.
|
||
*
|
||
* Let’s start from the biggest to the smallest:
|
||
* - An i3Screen is a virtual screen (Xinerama). This can be a single one, though two monitors
|
||
* might be connected, if you’re running clone mode. There can also be multiple of them.
|
||
*
|
||
* - Each i3Screen contains Workspaces. The concept is known from various other window managers.
|
||
* Basically, a workspace is a specific set of windows, usually grouped thematically (irc,
|
||
* www, work, …). You can switch between these.
|
||
*
|
||
* - Each Workspace has a table, which is our layout abstraction. You manage your windows
|
||
* by moving them around in your table. It grows as necessary.
|
||
*
|
||
* - Each cell of the table has a container, which can be in default or stacking mode. In default
|
||
* mode, each client is given equally much space in the container. In stacking mode, only one
|
||
* client is shown at a time, but all the titlebars are rendered at the top.
|
||
*
|
||
* - Inside the container are clients, which is X11-speak for a window.
|
||
*
|
||
*/
|
||
|
||
/* Forward definitions */
|
||
typedef struct Cell Cell;
|
||
typedef struct Font i3Font;
|
||
typedef struct Container Container;
|
||
typedef struct Client Client;
|
||
typedef struct Binding Binding;
|
||
typedef struct Workspace Workspace;
|
||
typedef struct Rect Rect;
|
||
typedef struct Screen i3Screen;
|
||
|
||
/******************************************************************************
|
||
* Helper types
|
||
*****************************************************************************/
|
||
typedef enum { D_LEFT, D_RIGHT, D_UP, D_DOWN } direction_t;
|
||
|
||
enum {
|
||
BIND_NONE = 0,
|
||
BIND_SHIFT = XCB_MOD_MASK_SHIFT, /* (1 << 0) */
|
||
BIND_CONTROL = XCB_MOD_MASK_CONTROL, /* (1 << 2) */
|
||
BIND_MOD1 = XCB_MOD_MASK_1, /* (1 << 3) */
|
||
BIND_MOD2 = XCB_MOD_MASK_2, /* (1 << 4) */
|
||
BIND_MOD3 = XCB_MOD_MASK_3, /* (1 << 5) */
|
||
BIND_MOD4 = XCB_MOD_MASK_4, /* (1 << 6) */
|
||
BIND_MOD5 = XCB_MOD_MASK_5, /* (1 << 7) */
|
||
BIND_MODE_SWITCH = (1 << 8)
|
||
};
|
||
|
||
struct Rect {
|
||
uint32_t x, y;
|
||
uint32_t width, height;
|
||
};
|
||
|
||
/*
|
||
* Defines a position in the table
|
||
*
|
||
*/
|
||
struct Cell {
|
||
int row;
|
||
int column;
|
||
};
|
||
|
||
/*
|
||
* Used for the cache of colorpixels.
|
||
*
|
||
*/
|
||
struct Colorpixel {
|
||
uint32_t pixel;
|
||
|
||
char *hex;
|
||
|
||
SLIST_ENTRY(Colorpixel) colorpixels;
|
||
};
|
||
|
||
/*
|
||
* Contains data for the windows needed to draw the titlebars on in stacking mode
|
||
*
|
||
*/
|
||
struct Stack_Window {
|
||
xcb_window_t window;
|
||
xcb_gcontext_t gc;
|
||
Rect rect;
|
||
|
||
/* Backpointer to the container this stack window is in */
|
||
Container *container;
|
||
|
||
SLIST_ENTRY(Stack_Window) stack_windows;
|
||
};
|
||
|
||
|
||
/******************************************************************************
|
||
* Major types
|
||
*****************************************************************************/
|
||
|
||
/*
|
||
* The concept of Workspaces is known from various other window managers. Basically,
|
||
* a workspace is a specific set of windows, usually grouped thematically (irc,
|
||
* www, work, …). You can switch between these.
|
||
*
|
||
*/
|
||
struct Workspace {
|
||
/* Number of this workspace, starting from 0 */
|
||
int num;
|
||
|
||
/* x, y, width, height */
|
||
Rect rect;
|
||
|
||
/* table dimensions */
|
||
int cols;
|
||
int rows;
|
||
|
||
/* These are stored here only while this workspace is _not_ shown (see show_workspace()) */
|
||
int current_row;
|
||
int current_col;
|
||
|
||
Client *fullscreen_client;
|
||
|
||
/* Contains all clients with _NET_WM_WINDOW_TYPE == _NET_WM_WINDOW_TYPE_DOCK */
|
||
SLIST_HEAD(dock_clients_head, Client) dock_clients;
|
||
|
||
/* The focus stack contains the clients in the correct order of focus so that
|
||
the focus can be reverted correctly when a client is closed */
|
||
SLIST_HEAD(focus_stack_head, Client) focus_stack;
|
||
|
||
/* Backpointer to the screen this workspace is on */
|
||
i3Screen *screen;
|
||
|
||
/* This is a two-dimensional dynamic array of Container-pointers. I’ve always wanted
|
||
* to be a three-star programmer :) */
|
||
Container ***table;
|
||
};
|
||
|
||
/*
|
||
* Holds a keybinding, consisting of a keycode combined with modifiers and the command
|
||
* which is executed as soon as the key is pressed (see src/command.c)
|
||
*
|
||
*/
|
||
struct Binding {
|
||
/* Keycode to bind */
|
||
uint32_t keycode;
|
||
/* Bitmask consisting of BIND_MOD_1, BIND_MODE_SWITCH, … */
|
||
uint32_t mods;
|
||
/* Command, like in command mode */
|
||
char *command;
|
||
|
||
TAILQ_ENTRY(Binding) bindings;
|
||
};
|
||
|
||
/*
|
||
* Data structure for cached font information:
|
||
* - font id in X11 (load it once)
|
||
* - font height (multiple calls needed to get it)
|
||
*
|
||
*/
|
||
struct Font {
|
||
/* The name of the font, that is what the pattern resolves to */
|
||
char *name;
|
||
/* A copy of the pattern to build a cache */
|
||
char *pattern;
|
||
/* The height of the font, built from font_ascent + font_descent */
|
||
int height;
|
||
/* The xcb-id for the font */
|
||
xcb_font_t id;
|
||
|
||
TAILQ_ENTRY(Font) fonts;
|
||
};
|
||
|
||
/*
|
||
* A client is X11-speak for a window.
|
||
*
|
||
*/
|
||
struct Client {
|
||
/* if you set a client to floating and set it back to managed, it does remember its old
|
||
position and *tries* to get back there */
|
||
Cell old_position;
|
||
|
||
/* Backpointer. A client is inside a container */
|
||
Container *container;
|
||
|
||
/* x, y, width, height of the frame */
|
||
Rect rect;
|
||
/* x, y, width, height of the child (relative to its frame) */
|
||
Rect child_rect;
|
||
|
||
/* Height which was determined by reading the _NET_WM_STRUT_PARTIAL top/bottom of the screen
|
||
reservation */
|
||
int desired_height;
|
||
|
||
/* Name */
|
||
char *name;
|
||
int name_len;
|
||
|
||
/* fullscreen is pretty obvious */
|
||
bool fullscreen;
|
||
|
||
/* Ensure TITLEBAR_TOP maps to 0 because we use calloc for initialization later */
|
||
enum { TITLEBAR_TOP = 0, TITLEBAR_LEFT, TITLEBAR_RIGHT, TITLEBAR_BOTTOM, TITLEBAR_OFF } titlebar_position;
|
||
|
||
/* If a client is set as a dock, it is placed at the very bottom of the screen and its
|
||
requested size is used */
|
||
bool dock;
|
||
|
||
/* After leaving fullscreen mode, a client needs to be reconfigured (configuration =
|
||
setting X, Y, width and height). By setting the force_reconfigure flag, render_layout()
|
||
will reconfigure the client. */
|
||
bool force_reconfigure;
|
||
|
||
/* When reparenting a window, an unmap-notify is sent. As we delete windows when they’re
|
||
unmapped, we need to ignore that one. Therefore, this flag is set when reparenting. */
|
||
bool awaiting_useless_unmap;
|
||
|
||
/* XCB contexts */
|
||
xcb_window_t frame; /* Our window: The frame around the client */
|
||
xcb_gcontext_t titlegc; /* The titlebar’s graphic context inside the frame */
|
||
xcb_window_t child; /* The client’s window */
|
||
|
||
/* Cache of colorpixels for this client */
|
||
/* TODO: Couldn’t we move them outside here, as they should only depend on the
|
||
root window? */
|
||
SLIST_HEAD(colorpixel_head, Colorpixel) colorpixels;
|
||
|
||
/* The following entry provides the necessary list pointers to use Client with LIST_* macros */
|
||
CIRCLEQ_ENTRY(Client) clients;
|
||
SLIST_ENTRY(Client) dock_clients;
|
||
SLIST_ENTRY(Client) focus_clients;
|
||
};
|
||
|
||
/*
|
||
* A container is either in default or stacking mode. It sits inside each cell of the table.
|
||
*
|
||
*/
|
||
struct Container {
|
||
/* Those are speaking for themselves: */
|
||
Client *currently_focused;
|
||
int colspan;
|
||
int rowspan;
|
||
|
||
/* Position of the container inside our table */
|
||
int row;
|
||
int col;
|
||
/* Xinerama: X/Y of the container */
|
||
int x;
|
||
int y;
|
||
/* Width/Height of the container. Changeable by the user */
|
||
int width;
|
||
int height;
|
||
/* width_factor and height_factor contain the amount of space (percentage) a window
|
||
has of all the space which is available for resized windows. This ensures that
|
||
non-resized windows (newly opened, for example) have the same size as always */
|
||
float width_factor;
|
||
float height_factor;
|
||
|
||
/* When in stacking mode, we draw the titlebars of each client onto a separate window */
|
||
struct Stack_Window stack_win;
|
||
|
||
/* Backpointer to the workspace this container is in */
|
||
Workspace *workspace;
|
||
|
||
/* Ensure MODE_DEFAULT maps to 0 because we use calloc for initialization later */
|
||
enum { MODE_DEFAULT = 0, MODE_STACK } mode;
|
||
CIRCLEQ_HEAD(client_head, Client) clients;
|
||
};
|
||
|
||
/*
|
||
* This is a virtual screen (Xinerama). This can be a single one, though two monitors
|
||
* might be connected, if you’re running clone mode. There can also be multiple of them.
|
||
*
|
||
*/
|
||
struct Screen {
|
||
/* Virtual screen number */
|
||
int num;
|
||
|
||
/* Current workspace selected on this virtual screen */
|
||
int current_workspace;
|
||
|
||
/* x, y, width, height */
|
||
Rect rect;
|
||
|
||
/* The bar window */
|
||
xcb_window_t bar;
|
||
xcb_gcontext_t bargc;
|
||
|
||
TAILQ_ENTRY(Screen) screens;
|
||
};
|
||
|
||
#endif
|