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initial commit of the i3-config-wizard (GUI working, functionality incomplete)

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This commit is contained in:
Michael Stapelberg 2011-05-01 00:26:10 +02:00
parent 8b21812bbd
commit 2491a155ee
7 changed files with 827 additions and 4 deletions
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8
.gitignore vendored
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@ -4,7 +4,7 @@ loglevels.tmp
*.swp *.swp
testcases/testsuite-* testcases/testsuite-*
testcases/latest testcases/latest
src/*.output *.output
src/*.tab.c *.tab.c
src/*.tab.h *.tab.h
src/*.yy.c *.yy.c

39
i3-config-wizard/Makefile Normal file
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# Default value so one can compile i3-input standalone
TOPDIR=..
include $(TOPDIR)/common.mk
# Depend on the object files of all source-files in src/*.c and on all header files
FILES:=$(patsubst %.c,%.o,$(wildcard *.c))
HEADERS:=$(wildcard *.h)
# Depend on the specific file (.c for each .o) and on all headers
%.o: %.c ${HEADERS}
echo "CC $<"
$(CC) $(CFLAGS) -c -o $@ $<
all: cfgparse.y.o cfgparse.yy.o ${FILES}
echo "LINK i3-config-wizard"
$(CC) -o i3-config-wizard ${FILES} $(LDFLAGS)
cfgparse.yy.o: cfgparse.l cfgparse.y.o ${HEADERS}
echo "LEX $<"
flex -i -o$(@:.o=.c) $<
$(CC) $(CFLAGS) -c -o $@ $(@:.o=.c)
cfgparse.y.o: cfgparse.y ${HEADERS}
echo "YACC $<"
bison --debug --verbose -b $(basename $< .y) -d $<
$(CC) $(CFLAGS) -c -o $@ $(<:.y=.tab.c)
install: all
echo "INSTALL"
$(INSTALL) -d -m 0755 $(DESTDIR)$(PREFIX)/bin
$(INSTALL) -m 0755 i3-config-wizard $(DESTDIR)$(PREFIX)/bin/
clean:
rm -f *.o
distclean: clean
rm -f i3-config-wizard

104
i3-config-wizard/cfgparse.l Normal file
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%option nounput
%option noinput
%option noyy_top_state
%option stack
%{
/*
* vim:ts=8:expandtab
*
*/
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
#include "cfgparse.tab.h"
int yycolumn = 1;
struct context {
int line_number;
char *line_copy;
char *compact_error;
/* These are the same as in YYLTYPE */
int first_column;
int last_column;
};
#define YY_DECL int yylex (struct context *context)
#define YY_USER_ACTION { \
context->first_column = yycolumn; \
context->last_column = yycolumn+yyleng-1; \
yycolumn += yyleng; \
}
%}
EOL (\r?\n)
%s BINDCODE_COND
%s BIND_AWS_COND
%s BIND_A2WS_COND
%x BUFFER_LINE
%%
{
/* This is called when a new line is lexed. We only want the
* first line to match to go into state BUFFER_LINE */
if (context->line_number == 0) {
context->line_number = 1;
BEGIN(INITIAL);
yy_push_state(BUFFER_LINE);
}
}
<BUFFER_LINE>^[^\r\n]*/{EOL}? {
/* save whole line */
context->line_copy = strdup(yytext);
yyless(0);
yy_pop_state();
yy_set_bol(true);
yycolumn = 1;
}
<BIND_A2WS_COND>[^\n]+ { BEGIN(INITIAL); yylval.string = strdup(yytext); return STR; }
[0-9]+ { yylval.number = atoi(yytext); return NUMBER; }
bind { BEGIN(BINDCODE_COND); return TOKBINDCODE; }
bindcode { BEGIN(BINDCODE_COND); return TOKBINDCODE; }
Mod1 { yylval.number = (1 << 3); return MODIFIER; }
Mod2 { yylval.number = (1 << 4); return MODIFIER; }
Mod3 { yylval.number = (1 << 5); return MODIFIER; }
Mod4 { yylval.number = (1 << 6); return MODIFIER; }
Mod5 { yylval.number = (1 << 7); return MODIFIER; }
Mode_switch { yylval.number = (1 << 8); return MODIFIER; }
control { return TOKCONTROL; }
ctrl { return TOKCONTROL; }
shift { return TOKSHIFT; }
{EOL} {
if (context->line_copy) {
free(context->line_copy);
context->line_copy = NULL;
}
context->line_number++;
BEGIN(INITIAL);
yy_push_state(BUFFER_LINE);
}
<BINDCODE_COND>[ \t]+ { BEGIN(BIND_AWS_COND); return WHITESPACE; }
<BIND_AWS_COND>[ \t]+ { BEGIN(BIND_A2WS_COND); return WHITESPACE; }
[ \t]+ { return WHITESPACE; }
. { return (int)yytext[0]; }
<<EOF>> {
while (yy_start_stack_ptr > 0)
yy_pop_state();
yyterminate();
}
%%

153
i3-config-wizard/cfgparse.y Normal file
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%{
/*
* vim:ts=4:sw=4:expandtab
*
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xlib.h>
extern Display *dpy;
struct context {
int line_number;
char *line_copy;
char *compact_error;
/* These are the same as in YYLTYPE */
int first_column;
int last_column;
char *result;
};
typedef struct yy_buffer_state *YY_BUFFER_STATE;
extern int yylex(struct context *context);
extern int yyparse(void);
extern FILE *yyin;
YY_BUFFER_STATE yy_scan_string(const char *);
static struct context *context;
/* We don’t need yydebug for now, as we got decent error messages using
* yyerror(). Should you ever want to extend the parser, it might be handy
* to just comment it in again, so it stays here. */
//int yydebug = 1;
void yyerror(const char *error_message) {
fprintf(stderr, "\n");
fprintf(stderr, "CONFIG: %s\n", error_message);
fprintf(stderr, "CONFIG: line %d:\n",
context->line_number);
fprintf(stderr, "CONFIG: %s\n", context->line_copy);
fprintf(stderr, "CONFIG: ");
for (int c = 1; c <= context->last_column; c++)
if (c >= context->first_column)
fprintf(stderr, "^");
else fprintf(stderr, " ");
fprintf(stderr, "\n");
fprintf(stderr, "\n");
}
int yywrap() {
return 1;
}
char *rewrite_binding(const char *bindingline) {
char *result = NULL;
context = calloc(sizeof(struct context), 1);
yy_scan_string(bindingline);
if (yyparse() != 0) {
fprintf(stderr, "Could not parse configfile\n");
exit(1);
}
result = context->result;
if (context->line_copy)
free(context->line_copy);
free(context);
return result;
}
/* XXX: does not work for combinations of modifiers yet */
static char *modifier_to_string(int modifiers) {
//printf("should convert %d to string\n", modifiers);
if (modifiers == (1 << 3))
return strdup("Mod1");
else if (modifiers == ((1 << 3) | (1 << 0)))
return strdup("Mod1+shift");
else return strdup("UNKNOWN");
}
%}
%error-verbose
%lex-param { struct context *context }
%union {
int number;
char *string;
}
%token <number>NUMBER "<number>"
%token <string>STR "<string>"
%token TOKBINDCODE
%token MODIFIER "<modifier>"
%token TOKCONTROL "control"
%token TOKSHIFT "shift"
%token WHITESPACE "<whitespace>"
%%
lines: /* empty */
| lines WHITESPACE bindcode
| lines error
| lines bindcode
;
bindcode:
TOKBINDCODE WHITESPACE binding_modifiers NUMBER WHITESPACE STR
{
//printf("\tFound keycode binding mod%d with key %d and command %s\n", $<number>3, $4, $<string>6);
int level = 0;
if (($<number>3 & (1 << 0))) {
/* When shift is included, we really need to use the second-level
* symbol (upper-case). The lower-case symbol could be on a
* different key than the upper-case one (unlikely for letters, but
* more likely for special characters). */
level = 1;
}
KeySym sym = XKeycodeToKeysym(dpy, $4, level);
char *str = XKeysymToString(sym);
char *modifiers = modifier_to_string($<number>3);
// TODO: modifier to string
asprintf(&(context->result), "bindsym %s+%s %s\n", modifiers, str, $<string>6);
free(modifiers);
}
;
binding_modifiers:
/* NULL */ { $<number>$ = 0; }
| binding_modifier
| binding_modifiers '+' binding_modifier { $<number>$ = $<number>1 | $<number>3; }
| binding_modifiers '+' { $<number>$ = $<number>1; }
;
binding_modifier:
MODIFIER { $<number>$ = $<number>1; }
| TOKCONTROL { $<number>$ = (1 << 2); }
| TOKSHIFT { $<number>$ = (1 << 0); }
;

355
i3-config-wizard/main.c Normal file
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/*
* vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
*
* © 2011 Michael Stapelberg and contributors
*
* See file LICENSE for license information.
*
* i3-config-wizard: Program to convert configs using keycodes to configs using
* keysyms.
*
*/
#include <ev.h>
#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>
#include <stdbool.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <err.h>
#include <stdint.h>
#include <getopt.h>
#include <limits.h>
#include <xcb/xcb.h>
#include <xcb/xcb_aux.h>
#include <xcb/xcb_event.h>
#include <xcb/xcb_keysyms.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
#define FREE(pointer) do { \
if (pointer != NULL) { \
free(pointer); \
pointer = NULL; \
} \
} \
while (0)
#include "xcb.h"
enum { STEP_WELCOME, STEP_GENERATE } current_step = STEP_WELCOME;
enum { MOD_ALT, MOD_SUPER } modifier = MOD_SUPER;
static xcb_connection_t *conn;
static uint32_t font_id;
static uint32_t font_bold_id;
static char *socket_path;
static int sockfd;
static int font_height;
static int font_bold_height;
static xcb_window_t win;
static xcb_pixmap_t pixmap;
static xcb_gcontext_t pixmap_gc;
static xcb_key_symbols_t *symbols;
xcb_window_t root;
Display *dpy;
static void finish();
/*
* Try to get the socket path from X11 and return NULL if it doesn’t work.
* As i3-msg is a short-running tool, we don’t bother with cleaning up the
* connection and leave it up to the operating system on exit.
*
*/
static char *socket_path_from_x11() {
xcb_connection_t *conn;
int screen;
if ((conn = xcb_connect(NULL, &screen)) == NULL ||
xcb_connection_has_error(conn))
return NULL;
xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screen);
xcb_window_t root = root_screen->root;
xcb_intern_atom_cookie_t atom_cookie;
xcb_intern_atom_reply_t *atom_reply;
atom_cookie = xcb_intern_atom(conn, 0, strlen("I3_SOCKET_PATH"), "I3_SOCKET_PATH");
atom_reply = xcb_intern_atom_reply(conn, atom_cookie, NULL);
if (atom_reply == NULL)
return NULL;
xcb_get_property_cookie_t prop_cookie;
xcb_get_property_reply_t *prop_reply;
prop_cookie = xcb_get_property_unchecked(conn, false, root, atom_reply->atom,
XCB_GET_PROPERTY_TYPE_ANY, 0, PATH_MAX);
prop_reply = xcb_get_property_reply(conn, prop_cookie, NULL);
if (prop_reply == NULL || xcb_get_property_value_length(prop_reply) == 0)
return NULL;
if (asprintf(&socket_path, "%.*s", xcb_get_property_value_length(prop_reply),
(char*)xcb_get_property_value(prop_reply)) == -1)
return NULL;
return socket_path;
}
/*
* Handles expose events, that is, draws the window contents.
*
*/
static int handle_expose() {
/* re-draw the background */
xcb_rectangle_t border = {0, 0, 300, (15*font_height) + 8},
inner = {2, 2, 296, (15*font_height) + 8 - 4};
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#285577"));
xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &border);
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &inner);
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FONT, font_id);
#define txt(x, row, text) xcb_image_text_8(conn, strlen(text), pixmap, pixmap_gc, x, (row * font_height) + 2, text)
if (current_step == STEP_WELCOME) {
/* restore font color */
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FFFFFF"));
txt(10, 1, "i3: first configuration");
txt(10, 4, "You have not configured i3 yet.");
txt(10, 5, "Do you want me to generate ~/.i3/config?");
txt(85, 8, "Yes, generate ~/.i3/config");
txt(85, 10, "No, I will use the defaults");
/* green */
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#00FF00"));
txt(25, 8, "<Enter>");
/* red */
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FF0000"));
txt(31, 10, "<ESC>");
}
if (current_step == STEP_GENERATE) {
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FFFFFF"));
txt(10, 1, "i3: generate config");
txt(10, 4, "Please choose either:");
txt(85, 6, "Win as default modifier");
txt(85, 7, "Alt as default modifier");
txt(10, 9, "Afterwards, press");
txt(85, 11, "to write ~/.i3/config");
txt(85, 12, "to abort");
/* the not-selected modifier */
if (modifier == MOD_SUPER)
txt(31, 7, "<Alt>");
else txt(31, 6, "<Win>");
/* the selected modifier */
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FONT, font_bold_id);
if (modifier == MOD_SUPER)
txt(31, 6, "<Win>");
else txt(31, 7, "<Alt>");
/* green */
uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_FONT;
uint32_t values[] = { get_colorpixel(conn, "#00FF00"), font_id };
xcb_change_gc(conn, pixmap_gc, mask, values);
txt(25, 11, "<Enter>");
/* red */
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FF0000"));
txt(31, 12, "<ESC>");
}
/* Copy the contents of the pixmap to the real window */
xcb_copy_area(conn, pixmap, win, pixmap_gc, 0, 0, 0, 0, /* */ 500, 500);
xcb_flush(conn);
return 1;
}
static int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event) {
printf("Keypress %d, state raw = %d\n", event->detail, event->state);
xcb_keysym_t sym = xcb_key_press_lookup_keysym(symbols, event, event->state);
printf("sym = %c (%d)\n", sym, sym);
if (sym == XK_Return) {
if (current_step == STEP_WELCOME)
current_step = STEP_GENERATE;
else finish();
}
/* cancel any time */
if (sym == XK_Escape)
exit(0);
if (sym == XK_Alt_L)
modifier = MOD_ALT;
if (sym == XK_Super_L)
modifier = MOD_SUPER;
handle_expose();
return 1;
}
static void finish() {
printf("finishing the wizard\n");
#if 0
dpy = XOpenDisplay(NULL);
FILE *kc_config = fopen("../i3.config.kc", "r");
char *line = NULL;
size_t len = 0;
ssize_t read;
while ((read = getline(&line, &len, kc_config)) != -1) {
/* See if that line is interesting by skipping leading whitespaces,
* then checking for 'bindcode' */
char *walk = line;
while (isspace(*walk) && walk < (line + len))
walk++;
if (strncmp(walk, "bindcode", strlen("bindcode")) != 0)
continue;
char *result = rewrite_binding(walk);
printf("in: %s", walk);
printf("out: %s", result);
free(result);
}
free(line);
fclose(kc_config);
exit(0);
#endif
exit(0);
}
int main(int argc, char *argv[]) {
socket_path = getenv("I3SOCK");
char *pattern = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
char *patternbold = "-misc-fixed-bold-r-normal--13-120-75-75-C-70-iso10646-1";
int o, option_index = 0;
static struct option long_options[] = {
{"socket", required_argument, 0, 's'},
{"version", no_argument, 0, 'v'},
{"limit", required_argument, 0, 'l'},
{"prompt", required_argument, 0, 'P'},
{"prefix", required_argument, 0, 'p'},
{"font", required_argument, 0, 'f'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0}
};
char *options_string = "s:vh";
while ((o = getopt_long(argc, argv, options_string, long_options, &option_index)) != -1) {
switch (o) {
case 's':
FREE(socket_path);
socket_path = strdup(optarg);
break;
case 'v':
printf("i3-config-wizard " I3_VERSION);
return 0;
case 'h':
printf("i3-config-wizard " I3_VERSION);
printf("i3-config-wizard [-s <socket>] [-v]\n");
return 0;
}
}
if (socket_path == NULL)
socket_path = socket_path_from_x11();
if (socket_path == NULL)
socket_path = "/tmp/i3-ipc.sock";
int screens;
conn = xcb_connect(NULL, &screens);
if (xcb_connection_has_error(conn))
errx(1, "Cannot open display\n");
xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screens);
root = root_screen->root;
symbols = xcb_key_symbols_alloc(conn);
font_id = get_font_id(conn, pattern, &font_height);
font_bold_id = get_font_id(conn, patternbold, &font_bold_height);
/* Open an input window */
win = open_input_window(conn, 300, 205);
/* Create pixmap */
pixmap = xcb_generate_id(conn);
pixmap_gc = xcb_generate_id(conn);
xcb_create_pixmap(conn, root_screen->root_depth, pixmap, win, 500, 500);
xcb_create_gc(conn, pixmap_gc, pixmap, 0, 0);
/* Set input focus (we have override_redirect=1, so the wm will not do
* this for us) */
xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, win, XCB_CURRENT_TIME);
/* Grab the keyboard to get all input */
xcb_flush(conn);
/* Try (repeatedly, if necessary) to grab the keyboard. We might not
* get the keyboard at the first attempt because of the keybinding
* still being active when started via a wm’s keybinding. */
xcb_grab_keyboard_cookie_t cookie;
xcb_grab_keyboard_reply_t *reply = NULL;
int count = 0;
while ((reply == NULL || reply->status != XCB_GRAB_STATUS_SUCCESS) && (count++ < 500)) {
cookie = xcb_grab_keyboard(conn, false, win, XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
reply = xcb_grab_keyboard_reply(conn, cookie, NULL);
usleep(1000);
}
if (reply->status != XCB_GRAB_STATUS_SUCCESS) {
fprintf(stderr, "Could not grab keyboard, status = %d\n", reply->status);
exit(-1);
}
xcb_flush(conn);
xcb_generic_event_t *event;
while ((event = xcb_wait_for_event(conn)) != NULL) {
if (event->response_type == 0) {
fprintf(stderr, "X11 Error received! sequence %x\n", event->sequence);
continue;
}
/* Strip off the highest bit (set if the event is generated) */
int type = (event->response_type & 0x7F);
switch (type) {
case XCB_KEY_PRESS:
handle_key_press(NULL, conn, (xcb_key_press_event_t*)event);
break;
/* TODO: handle mappingnotify */
case XCB_EXPOSE:
handle_expose();
break;
}
free(event);
}
return 0;
}

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i3-config-wizard/xcb.c Normal file
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/*
* vim:ts=8:expandtab
*
* i3 - an improved dynamic tiling window manager
*
* © 2009 Michael Stapelberg and contributors
*
* See file LICENSE for license information.
*
*/
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <err.h>
#include <xcb/xcb.h>
#include <xcb/xcb_keysyms.h>
#include <X11/keysym.h>
extern xcb_window_t root;
/*
* Convenience-wrapper around xcb_change_gc which saves us declaring a variable
*
*/
void xcb_change_gc_single(xcb_connection_t *conn, xcb_gcontext_t gc, uint32_t mask, uint32_t value) {
xcb_change_gc(conn, gc, mask, &value);
}
/*
* Returns the colorpixel to use for the given hex color (think of HTML).
*
* The hex_color has to start with #, for example #FF00FF.
*
* NOTE that get_colorpixel() does _NOT_ check the given color code for validity.
* This has to be done by the caller.
*
*/
uint32_t get_colorpixel(xcb_connection_t *conn, char *hex) {
char strgroups[3][3] = {{hex[1], hex[2], '\0'},
{hex[3], hex[4], '\0'},
{hex[5], hex[6], '\0'}};
uint32_t rgb16[3] = {(strtol(strgroups[0], NULL, 16)),
(strtol(strgroups[1], NULL, 16)),
(strtol(strgroups[2], NULL, 16))};
return (rgb16[0] << 16) + (rgb16[1] << 8) + rgb16[2];
}
/*
* Returns the mask for Mode_switch (to be used for looking up keysymbols by
* keycode).
*
*/
uint32_t get_mod_mask(xcb_connection_t *conn, uint32_t keycode) {
xcb_key_symbols_t *symbols = xcb_key_symbols_alloc(conn);
xcb_get_modifier_mapping_reply_t *modmap_r;
xcb_keycode_t *modmap, kc;
xcb_keycode_t *modeswitchcodes = xcb_key_symbols_get_keycode(symbols, keycode);
if (modeswitchcodes == NULL)
return 0;
modmap_r = xcb_get_modifier_mapping_reply(conn, xcb_get_modifier_mapping(conn), NULL);
modmap = xcb_get_modifier_mapping_keycodes(modmap_r);
for (int i = 0; i < 8; i++)
for (int j = 0; j < modmap_r->keycodes_per_modifier; j++) {
kc = modmap[i * modmap_r->keycodes_per_modifier + j];
for (xcb_keycode_t *ktest = modeswitchcodes; *ktest; ktest++) {
if (*ktest != kc)
continue;
free(modeswitchcodes);
free(modmap_r);
return (1 << i);
}
}
return 0;
}
/*
* Opens the window we use for input/output and maps it
*
*/
xcb_window_t open_input_window(xcb_connection_t *conn, uint32_t width, uint32_t height) {
xcb_window_t win = xcb_generate_id(conn);
//xcb_cursor_t cursor_id = xcb_generate_id(conn);
#if 0
/* Use the default cursor (left pointer) */
if (cursor > -1) {
i3Font *cursor_font = load_font(conn, "cursor");
xcb_create_glyph_cursor(conn, cursor_id, cursor_font->id, cursor_font->id,
XCB_CURSOR_LEFT_PTR, XCB_CURSOR_LEFT_PTR + 1,
0, 0, 0, 65535, 65535, 65535);
}
#endif
uint32_t mask = 0;
uint32_t values[3];
mask |= XCB_CW_BACK_PIXEL;
values[0] = 0;
mask |= XCB_CW_OVERRIDE_REDIRECT;
values[1] = 1;
mask |= XCB_CW_EVENT_MASK;
values[2] = XCB_EVENT_MASK_EXPOSURE;
xcb_create_window(conn,
XCB_COPY_FROM_PARENT,
win, /* the window id */
root, /* parent == root */
490, 297, width, height, /* dimensions */
0, /* border = 0, we draw our own */
XCB_WINDOW_CLASS_INPUT_OUTPUT,
XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */
mask,
values);
#if 0
if (cursor > -1)
xcb_change_window_attributes(conn, result, XCB_CW_CURSOR, &cursor_id);
#endif
/* Map the window (= make it visible) */
xcb_map_window(conn, win);
return win;
}
/*
* Returns the ID of the font matching the given pattern and stores the height
* of the font (in pixels) in *font_height. die()s if no font matches.
*
*/
int get_font_id(xcb_connection_t *conn, char *pattern, int *font_height) {
xcb_void_cookie_t font_cookie;
xcb_list_fonts_with_info_cookie_t info_cookie;
/* Send all our requests first */
int result;
result = xcb_generate_id(conn);
font_cookie = xcb_open_font_checked(conn, result, strlen(pattern), pattern);
info_cookie = xcb_list_fonts_with_info(conn, 1, strlen(pattern), pattern);
xcb_generic_error_t *error = xcb_request_check(conn, font_cookie);
if (error != NULL) {
fprintf(stderr, "ERROR: Could not open font: %d\n", error->error_code);
exit(1);
}
/* Get information (height/name) for this font */
xcb_list_fonts_with_info_reply_t *reply = xcb_list_fonts_with_info_reply(conn, info_cookie, NULL);
if (reply == NULL)
errx(1, "Could not load font \"%s\"\n", pattern);
*font_height = reply->font_ascent + reply->font_descent;
return result;
}

6
i3-config-wizard/xcb.h Normal file
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void xcb_change_gc_single(xcb_connection_t *conn, xcb_gcontext_t gc, uint32_t mask, uint32_t value);
uint32_t get_colorpixel(xcb_connection_t *conn, char *hex);
uint32_t get_mod_mask(xcb_connection_t *conn, uint32_t keycode);
xcb_window_t open_input_window(xcb_connection_t *conn, uint32_t width, uint32_t height);
int get_font_id(xcb_connection_t *conn, char *pattern, int *font_height);