/* * Copyright (c) 2011, Andy Spencer * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF */ /* Windowing system interface: * * The sys provides input to the window manager. It creates * the main loop and responds to input events from the user, * generally by converting them to a system independent form * and then passing them to the wm. * * The sys also provides the API used by the wm to position * and control windows. */ /* Window states */ typedef enum { ST_SHOW, // show as regular window ST_FULL, // fullscreen/maximized ST_SHADE, // show titlebar only ST_ICON, // iconified/minimized ST_HIDE, // completely hidden ST_CLOSE, // close the window } state_t; /* Basic window type */ typedef struct win_sys win_sys_t; typedef struct win_wm win_wm_t; typedef struct { int x, y, z; int w, h; state_t state; win_sys_t *sys; win_wm_t *wm; } win_t; /* Generic key codes, also used for some other events * Keys map to their Unicode value */ typedef int event_t; enum { EV_ALERT = '\a', EV_BACKSPACE = '\b', EV_FORMFEED = '\f', EV_NEWLINE = '\n', EV_RETURN = '\r', EV_TAB = '\t', EV_VTAB = '\v', EV_SINGLEQUOTE = '\'', EV_DOUBLEQUOTE = '\"', EV_BACKSLASH = '\\', EV_QUESTION = '\?', EV_NONE = 0xF0000, // unused Unicode space EV_MOUSE0, EV_MOUSE1, EV_MOUSE2, EV_MOUSE3, EV_MOUSE4, EV_MOUSE5, EV_MOUSE6, EV_MOUSE7, EV_LEFT, EV_RIGHT, EV_UP, EV_DOWN, EV_HOME, EV_END, EV_PAGEUP, EV_PAGEDOWN, EV_F1, EV_F2, EV_F3, EV_F4, EV_F5, EV_F6, EV_F7, EV_F8, EV_F9, EV_F10, EV_F11, EV_F12, EV_ALT, EV_CTRL, EV_SHIFT, EV_WIN, EV_ENTER, EV_LEAVE, EV_FOCUS, EV_UNFOCUS, }; /* Key modifiers, up is for button release */ typedef struct { unsigned char alt : 1; unsigned char ctrl : 1; unsigned char shift : 1; unsigned char win : 1; unsigned char up : 1; } mod_t; #define MOD(...) ((mod_t){__VA_ARGS__}) #define mod2int(mod) (*((unsigned char*)&(mod))) /* Mouse movement */ typedef struct { int x, y; int rx, ry; } ptr_t; #define PTR(...) ((ptr_t){__VA_ARGS__}) /* Move the window to the specified location and set it's * geometry. The position and size include borders and * window decorations. */ void sys_move(win_t *win, int x, int y, int w, int h); /* Rise the window above all other windows */ void sys_raise(win_t *win); /* Give keyboard focus to the window and update window * decorations. */ void sys_focus(win_t *win); /* Set the windows drawing state */ void sys_show(win_t *win, state_t st); /* Start watching for an event. The sys subsequently * calls wm_handle_event whenever the event occurs. */ void sys_watch(win_t *win, event_t ev, mod_t mod); /* Stop watching an event */ void sys_unwatch(win_t *win, event_t event, mod_t mod); /* Return a list of windows representing the geometry of the * physical displays attached to the computer. */ list_t *sys_info(win_t *root); /* First call, calls wm_insert for each existing window */ win_t *sys_init(void); /* Starts the main loop */ void sys_run(win_t *root); /* Exit main loop */ void sys_exit(void); /* Free all static data, for memory debugging */ void sys_free(win_t *root);