From 53a73dad1f663a151a93269ba9bf589ed9ee4db4 Mon Sep 17 00:00:00 2001 From: Michael Cardell Widerkrantz Date: Sun, 7 Oct 2018 14:59:47 +0200 Subject: Delete unused mcmenu.c. --- mcmenu.c | 517 --------------------------------------------------------------- 1 file changed, 517 deletions(-) delete mode 100644 mcmenu.c (limited to 'mcmenu.c') diff --git a/mcmenu.c b/mcmenu.c deleted file mode 100644 index 5a119a9..0000000 --- a/mcmenu.c +++ /dev/null @@ -1,517 +0,0 @@ -/* - * mcmenu - small menu program using only XCB. - * - * MC, mc at the domain hack.org - * http://hack.org/mc/ - * - * Copyright (c) 2010, 2011, 2012 Michael Cardell Widerkrantz, mc at - * the domain hack.org. - * - * 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 - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include - -#include - -#include -#include - -#include -#include -#include -#include - -/* - * FIXME calculate height and width. - * How? We get font size *after* opening a window! Resize afterwards? - * - * Can I ask a font about information before using setfont()? I need - * pixel sizes. - * - */ -#define WIDTH 100 -#define HEIGHT 200 - -xcb_connection_t *conn; -xcb_screen_t *screen; - -int sigcode; /* Signal code. Non-zero if we've been - * interruped by a signal. */ -xcb_keycode_t keycode_j; -xcb_keycode_t keycode_k; -xcb_keycode_t keycode_ret; - -struct font -{ - char *name; - /* width, height. */ -}; - -struct window -{ - xcb_window_t id; - xcb_gc_t curfontc; -}; - -static uint32_t getcolor(const char *); -static int setfont(struct window *, const char *, const char *, const char *); -static void printat(struct window *, int16_t, int16_t, const char *); -static struct window *window(int16_t, int16_t, uint16_t, uint16_t); -static void init(void); -static void cleanup(void); -static xcb_keycode_t keysymtokeycode(xcb_keysym_t, xcb_key_symbols_t *); -static void grabkeys(struct window *); -static void printrows(struct window *, char *[], int, int); -static void invertrow(struct window *, char *[], int, int); -static void normalrow(struct window *, char *[], int, int); -static int keypress(xcb_key_press_event_t *, struct window *, char *[], int, - int, int); -static void redraw(struct window *, char *[], int, int, int); - -/* - * Get the pixel values of a named colour colstr. - * - * Returns pixel values. - */ -uint32_t getcolor(const char *colstr) -{ - xcb_alloc_named_color_reply_t *col_reply; - xcb_colormap_t colormap; - xcb_generic_error_t *error; - xcb_alloc_named_color_cookie_t colcookie; - - colormap = screen->default_colormap; - - colcookie = xcb_alloc_named_color(conn, colormap, strlen(colstr), colstr); - - col_reply = xcb_alloc_named_color_reply(conn, colcookie, &error); - if (NULL != error) - { - fprintf(stderr, "mcwm: Couldn't get pixel value for colour %s. " - "Exiting.\n", colstr); - - xcb_disconnect(conn); - exit(1); - } - - return col_reply->pixel; -} - -int setfont(struct window *win, const char *fontname, const char *fg, - const char *bg) -{ - uint32_t fgcol; /* Focused border colour. */ - uint32_t bgcol; /* Focused border colour. */ - xcb_font_t font; - xcb_gcontext_t gc; - uint32_t mask; - uint32_t values[3]; - - fgcol = getcolor(fg); - bgcol = getcolor(bg); - - font = xcb_generate_id(conn); - xcb_open_font(conn, font, strlen(fontname), fontname); - - gc = xcb_generate_id(conn); - mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_FONT; - values[0] = fgcol; - values[1] = bgcol; - values[2] = font; - xcb_void_cookie_t cookie = xcb_create_gc_checked(conn, gc, win->id, mask, - values); - - xcb_generic_error_t *error = xcb_request_check(conn, cookie); - if (error) - { - fprintf(stderr, "ERROR: can't print text : %d\n", error->error_code); - xcb_disconnect(conn); - exit(-1); - } - - xcb_close_font(conn, font); - - win->curfontc = gc; - - return 0; -} - -void printat(struct window *win, int16_t x, int16_t y, const char *text) -{ - xcb_void_cookie_t cookie; - xcb_generic_error_t *error; - - cookie = xcb_image_text_8_checked(conn, strlen(text), - win->id, win->curfontc, x, y, text); - - error = xcb_request_check(conn, cookie); - - if (error) - { - fprintf(stderr, "ERROR: can't print text : %d\n", error->error_code); - xcb_disconnect(conn); - exit(-1); - } - - xcb_flush(conn); -} - -struct window *window(int16_t x, int16_t y, uint16_t width, uint16_t height) -{ - struct window *win; - xcb_void_cookie_t cookie; - uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK; - uint32_t values[2]; - - win = malloc(sizeof (struct window)); - if (NULL == win) - { - perror("malloc"); - return NULL; - } - - values[0] = screen->black_pixel; - values[1] = XCB_EVENT_MASK_KEY_RELEASE | - XCB_EVENT_MASK_BUTTON_PRESS | - XCB_EVENT_MASK_EXPOSURE | - XCB_EVENT_MASK_POINTER_MOTION; - - win->id = xcb_generate_id(conn); - - cookie = xcb_create_window(conn, screen->root_depth, win->id, screen->root, - x, y, - width, height, - 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, - screen->root_visual, - mask, values); - - xcb_map_window(conn, win->id); - - xcb_flush(conn); - - return win; -} - -void init(void) -{ - int scrno; - xcb_screen_iterator_t iter; - - conn = xcb_connect(NULL, &scrno); - if (!conn) - { - fprintf(stderr, "can't connect to an X server\n"); - exit(1); - } - - iter = xcb_setup_roots_iterator(xcb_get_setup(conn)); - - for (int i = 0; i < scrno; ++i) - { - xcb_screen_next(&iter); - } - - screen = iter.data; - - if (!screen) - { - fprintf(stderr, "can't get the current screen\n"); - xcb_disconnect(conn); - exit(1); - } -} - -void cleanup(void) -{ - xcb_disconnect(conn); -} - -/* - * Get a keycode from a keysym. - * - * Returns keycode value. - */ -xcb_keycode_t keysymtokeycode(xcb_keysym_t keysym, xcb_key_symbols_t *keysyms) -{ - xcb_keycode_t *keyp; - xcb_keycode_t key; - - /* We only use the first keysymbol, even if there are more. */ - keyp = xcb_key_symbols_get_keycode(keysyms, keysym); - if (NULL == keyp) - { - fprintf(stderr, "mcmenu: Couldn't look up key. Exiting.\n"); - exit(1); - return 0; - } - - key = *keyp; - free(keyp); - - return key; -} - -void grabkeys(struct window *win) -{ - xcb_key_symbols_t *keysyms; - - /* Get all the keysymbols. */ - keysyms = xcb_key_symbols_alloc(conn); - - keycode_j = keysymtokeycode(XK_J, keysyms); - keycode_k = keysymtokeycode(XK_K, keysyms); - keycode_ret = keysymtokeycode(XK_Return, keysyms); - - xcb_grab_key(conn, 1, win->id, XCB_MOD_MASK_ANY, - keycode_j, - XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC); - - xcb_grab_key(conn, 1, win->id, XCB_MOD_MASK_ANY, - keycode_k, - XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC); - - xcb_grab_key(conn, 1, win->id, XCB_MOD_MASK_ANY, - keycode_ret, - XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC); - - xcb_flush(conn); - - /* Get rid of the key symbols table. */ - xcb_key_symbols_free(keysyms); -} - -/* - * Print some rows of text in window win, stopping at max - * automatically moving fontheight pixels down at a time. - */ -void printrows(struct window *win, char *rows[], int max, int fontheight) -{ - int i; - int y; - - if (0 != setfont(win, "6x13", "white", "black")) - { - fprintf(stderr, "Couldn't set new font.\n"); - exit(1); - } - - for (i = 0, y = fontheight; i < max; i ++, y += fontheight) - { - printat(win, 1, y, rows[i]); - } -} - -/* - * Invert row row (counting from 1). - */ -void invertrow(struct window *win, char *rows[], int row, int fontheight) -{ - int y = fontheight * row; - - if (0 != setfont(win, "6x13", "black", "white")) - { - fprintf(stderr, "Couldn't set new font.\n"); - exit(1); - } - - /* TODO Pad to window width. */ - printat(win, 1, y, rows[row - 1]); -} - -void normalrow(struct window *win, char *rows[], int row, int fontheight) -{ - int y = fontheight * row; - - if (0 != setfont(win, "6x13", "white", "black")) - { - fprintf(stderr, "Couldn't set new font.\n"); - exit(1); - } - - /* TODO Pad to window width. */ - printat(win, 1, y, rows[row - 1]); -} - -int keypress(xcb_key_press_event_t *ev, struct window *win, char *menu[], - int currow, int max, int height) -{ - int oldrow; - - oldrow = currow; - - if (ev->detail == keycode_j) - { - printf("DOWN!\n"); - currow ++; - } - else if (ev->detail == keycode_k) - { - printf("UP!\n"); - currow --; - } - else if (ev->detail == keycode_ret) - { - printf("Choice: %s\n", menu[currow - 1]); - cleanup(); - exit(0); - } - else - { - printf("Unknown key pressed.\n"); - } - - if (currow < 1) - { - currow = max; - } - else if (currow > max) - { - currow = 1; - } - - invertrow(win, menu, currow, height); - - if (currow != oldrow) - { - normalrow(win, menu, oldrow, height); - } - - return currow; -} - -void redraw(struct window *win, char *menu[], int max, int cur, int height) -{ - printrows(win, menu, max, height); - invertrow(win, menu, cur, height); -} - -int main(void) -{ - struct window *win; - char *menu[] = - { - "foo", - "gurka", - "sallad" - }; - int currow = 1; - int maxrow = 3; - char *font = "6x13"; - int fontheight = 13; - xcb_generic_event_t *ev; - int fd; /* Our X file descriptor */ - fd_set in; /* For select */ - int found; /* Ditto. */ - - init(); - - /* - * This creates a new window. I might want to have a window - * created already after init(). The default window, where the - * program was started. Of course, this won't work in X but might - * work in another window systems. - */ - win = window(1, 1, WIDTH, HEIGHT); - if (NULL == win) - { - fprintf(stderr, "Couldn't create window.\n"); - exit(1); - } - - if (0 != setfont(win, font, "white", "black")) - { - fprintf(stderr, "Couldn't set new font.\n"); - exit(1); - } - - grabkeys(win); - - redraw(win, menu, maxrow, currow, fontheight); - - /* Get the file descriptor so we can do select() on it. */ - fd = xcb_get_file_descriptor(conn); - - for (sigcode = 0; 0 == sigcode;) - { - /* Prepare for select(). */ - FD_ZERO(&in); - FD_SET(fd, &in); - - /* - * Check for events, again and again. When poll returns NULL, - * we block on select() until the event file descriptor gets - * readable again. - */ - ev = xcb_poll_for_event(conn); - if (NULL == ev) - { - printf("xcb_poll_for_event() returned NULL.\n"); - - /* Check if we have an unrecoverably error. */ - if (xcb_connection_has_error(conn)) - { - cleanup(); - exit(1); - } - - found = select(fd + 1, &in, NULL, NULL, NULL); - if (-1 == found) - { - if (EINTR == errno) - { - /* We received a signal. Break out of loop. */ - break; - } - else - { - /* Something was seriously wrong with select(). */ - fprintf(stderr, "mcwm: select failed."); - cleanup(); - exit(1); - } - } - else - { - /* We found more events. Goto start of loop. */ - continue; - } - } - - switch (ev->response_type & ~0x80) - { - /* TODO Add mouse events and mouse button click. */ - - case XCB_KEY_PRESS: - { - xcb_key_press_event_t *e = (xcb_key_press_event_t *)ev; - - printf("Key %d pressed\n", e->detail); - - currow = keypress(e, win, menu, currow, maxrow, fontheight); - } - break; - - case XCB_EXPOSE: - redraw(win, menu, maxrow, currow, fontheight); - break; - - default: - printf("Unknown event.\n"); - - } /* switch */ - } /* for */ - - cleanup(); - exit(0); -} -- cgit v1.2.3