Delete unused mcmenu.c.

1 files changed, 0 insertions, 517 deletions

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 <sys/select.h>
-
-#include <X11/keysym.h>
-
-#include <xcb/xcb.h>
-#include <xcb/xcb_keysyms.h>
-
-#include <errno.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-/*
- * 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);
-}