/* * vim:ts=8:expandtab * * i3 - an improved dynamic tiling window manager * * © 2009 Michael Stapelberg and contributors * * See file LICENSE for license information. * * include/data.h: This file defines all data structures used by i3 * */ #include #include #include #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; }; struct Ignore_Event { int sequence; time_t added; SLIST_ENTRY(Ignore_Event) ignore_events; }; /* * Emulates the behaviour of tables of libxcb-wm, which in libxcb 0.3.4 suddenly vanished. * */ struct keyvalue_element { uint32_t key; void *value; TAILQ_ENTRY(keyvalue_element) elements; }; typedef struct { enum xcb_atom_fast_tag_t tag; union { xcb_get_window_attributes_cookie_t cookie; uint8_t override_redirect; } u; } window_attributes_t; /****************************************************************************** * 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; /* Should clients on this workspace be automatically floating? */ bool auto_float; /* Are the floating clients on this workspace currently hidden? */ bool floating_hidden; Client *fullscreen_client; /* 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; /* This tail queue contains the floating clients in order of when they were first * set to floating (new floating clients are just appended) */ TAILQ_HEAD(floating_clients_head, Client) floating_clients; /* 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; /* width_factor and height_factor contain the amount of space (percentage) a column/row 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; }; /* * 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; }; /* * Holds a command specified by an exec-line in the config (see src/config.c) * */ struct Autostart { /* Command, like in command mode */ char *command; TAILQ_ENTRY(Autostart) autostarts; }; /* * Holds an assignment for a given window class/title to a specific workspace * (see src/config.c) * */ struct Assignment { char *windowclass_title; int workspace; TAILQ_ENTRY(Assignment) assignments; }; /* * 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 { /* initialized will be set to true if the client was fully initialized by * manage_window() and all functions can be used normally */ bool initialized; /* 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; /* Because dock clients don’t have a container, we have this workspace-backpointer */ Workspace *workspace; /* x, y, width, height of the frame */ Rect rect; /* Position in floating mode and in tiling mode are saved separately */ Rect floating_rect; /* x, y, width, height of the child (relative to its frame) */ Rect child_rect; /* contains the size calculated from the hints set by the window or 0 if the client did not send any hints */ int proportional_height; int proportional_width; /* Height which was determined by reading the _NET_WM_STRUT_PARTIAL top/bottom of the screen reservation */ int desired_height; /* Name (= window title) */ char *name; /* name_len stores the real string length (glyphs) of the window title if the client uses _NET_WM_NAME. Otherwise, it is set to -1 to indicate that name should be just passed to X as 8-bit string and therefore will not be rendered correctly. This behaviour is to support legacy applications which do not set _NET_WM_NAME */ int name_len; /* This will be set to true as soon as the first _NET_WM_NAME comes in. If set to true, legacy window names are ignored. */ bool uses_net_wm_name; /* Holds the WM_CLASS, useful for matching the client in commands */ char *window_class; /* fullscreen is pretty obvious */ bool fullscreen; /* floating? (= not in tiling layout) This cannot be simply a bool because we want to keep track * of whether the status was set by the application (by setting WM_CLASS to tools for example) or * by the user. The user’s choice overwrites automatic mode, of course. The order of the values * is important because we check with >= FLOATING_AUTO_ON if a client is floating. */ enum { FLOATING_AUTO_OFF = 0, FLOATING_USER_OFF = 1, FLOATING_AUTO_ON = 2, FLOATING_USER_ON = 3 } floating; /* 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 */ /* 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; TAILQ_ENTRY(Client) floating_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; /* 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; /* Contains all clients with _NET_WM_WINDOW_TYPE == _NET_WM_WINDOW_TYPE_DOCK */ SLIST_HEAD(dock_clients_head, Client) dock_clients; TAILQ_ENTRY(Screen) screens; }; #endif