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lemonbar.c
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lemonbar.c
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// vim:sw=4:ts=4:et:
#define _POSIX_C_SOURCE 200809L
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <signal.h>
#include <poll.h>
#include <fcntl.h>
#include <getopt.h>
#include <unistd.h>
#include <errno.h>
#include <xcb/xcb.h>
#include <xcb/xcbext.h>
#if WITH_XINERAMA
#include <xcb/xinerama.h>
#endif
#include <xcb/randr.h>
#include <X11/Xft/Xft.h>
#include <X11/Xlib-xcb.h>
// Here bet dragons
#define max(a,b) ((a) > (b) ? (a) : (b))
#define min(a,b) ((a) < (b) ? (a) : (b))
#define indexof(c,s) (strchr((s),(c))-(s))
typedef struct font_t {
xcb_font_t ptr;
xcb_charinfo_t *width_lut;
XftFont *xft_ft;
int ascent;
int descent, height, width;
uint16_t char_max;
uint16_t char_min;
} font_t;
typedef struct monitor_t {
int x, y, width, height;
xcb_window_t window;
xcb_pixmap_t pixmap;
} monitor_t;
typedef struct area_t {
unsigned int begin:16;
unsigned int end:16;
bool active:1;
int align:3;
unsigned int button:3;
xcb_window_t window;
char *cmd;
} area_t;
typedef union rgba_t {
struct {
uint8_t b;
uint8_t g;
uint8_t r;
uint8_t a;
};
uint32_t v;
} rgba_t;
typedef struct area_stack_t {
int at, max;
area_t *area;
} area_stack_t;
enum {
ATTR_OVERL = (1<<0),
ATTR_UNDERL = (1<<1),
};
enum { ALIGN_L = 0,
ALIGN_C,
ALIGN_R
};
enum {
GC_DRAW = 0,
GC_CLEAR,
GC_ATTR,
GC_MAX
};
#define MAX_FONT_COUNT 5
static Display *dpy;
static xcb_connection_t *c;
static xcb_screen_t *scr;
static int scr_nbr = 0;
static xcb_gcontext_t gc[GC_MAX];
static xcb_visualid_t visual;
static Visual *visual_ptr;
static xcb_colormap_t colormap;
static monitor_t *mon;
static char *mon_name;
static font_t *font_list[MAX_FONT_COUNT];
static int font_count = 0;
static int font_index = -1;
static int offsets_y[MAX_FONT_COUNT];
static int offset_y_count = 0;
static int offset_y_index = 0;
static uint32_t attrs = 0;
static bool dock = false;
static bool topbar = true;
static int bw = -1, bh = -1, bx = 0, by = 0;
static int bu = 1; // Underline height
static rgba_t fgc, bgc, ugc;
static rgba_t dfgc, dbgc, dugc;
static area_stack_t area_stack;
static XftColor sel_fg;
static XftDraw *xft_draw;
//char width lookuptable
#define MAX_WIDTHS (1 << 16)
static wchar_t xft_char[MAX_WIDTHS];
static char xft_width[MAX_WIDTHS];
void
update_gc (void)
{
xcb_change_gc(c, gc[GC_DRAW], XCB_GC_FOREGROUND, (const uint32_t []){ fgc.v });
xcb_change_gc(c, gc[GC_CLEAR], XCB_GC_FOREGROUND, (const uint32_t []){ bgc.v });
xcb_change_gc(c, gc[GC_ATTR], XCB_GC_FOREGROUND, (const uint32_t []){ ugc.v });
XftColorFree(dpy, visual_ptr, colormap , &sel_fg);
char color[] = "#ffffff";
uint32_t nfgc = fgc.v & 0x00ffffff;
snprintf(color, sizeof(color), "#%06X", nfgc);
if (!XftColorAllocName (dpy, visual_ptr, colormap, color, &sel_fg)) {
fprintf(stderr, "Couldn't allocate xft font color '%s'\n", color);
}
}
void
fill_gradient (xcb_drawable_t d, int x, int y, int width, int height, rgba_t start, rgba_t stop)
{
float i;
const int K = 25; // The number of steps
for (i = 0.; i < 1.; i += (1. / K)) {
// Perform the linear interpolation magic
unsigned int rr = i * stop.r + (1. - i) * start.r;
unsigned int gg = i * stop.g + (1. - i) * start.g;
unsigned int bb = i * stop.b + (1. - i) * start.b;
// The alpha is ignored here
rgba_t step = {
.r = rr,
.g = gg,
.b = bb,
.a = 255,
};
xcb_change_gc(c, gc[GC_DRAW], XCB_GC_FOREGROUND, (const uint32_t []){ step.v });
xcb_poly_fill_rectangle(c, d, gc[GC_DRAW], 1,
(const xcb_rectangle_t []){ { x, i * bh, width, bh / K + 1 } });
}
xcb_change_gc(c, gc[GC_DRAW], XCB_GC_FOREGROUND, (const uint32_t []){ fgc.v });
}
void
fill_rect (xcb_drawable_t d, xcb_gcontext_t _gc, int x, int y, int width, int height)
{
xcb_poly_fill_rectangle(c, d, _gc, 1, (const xcb_rectangle_t []){ { x, y, width, height } });
}
// Apparently xcb cannot seem to compose the right request for this call, hence we have to do it by
// ourselves.
// The funcion is taken from 'wmdia' (http://wmdia.sourceforge.net/)
xcb_void_cookie_t xcb_poly_text_16_simple(xcb_connection_t * c,
xcb_drawable_t drawable, xcb_gcontext_t gc, int16_t x, int16_t y,
uint32_t len, const uint16_t *str)
{
static const xcb_protocol_request_t xcb_req = {
5, // count
0, // ext
XCB_POLY_TEXT_16, // opcode
1 // isvoid
};
struct iovec xcb_parts[7];
uint8_t xcb_lendelta[2];
xcb_void_cookie_t xcb_ret;
xcb_poly_text_8_request_t xcb_out;
xcb_out.pad0 = 0;
xcb_out.drawable = drawable;
xcb_out.gc = gc;
xcb_out.x = x;
xcb_out.y = y;
xcb_lendelta[0] = len;
xcb_lendelta[1] = 0;
xcb_parts[2].iov_base = (char *)&xcb_out;
xcb_parts[2].iov_len = sizeof(xcb_out);
xcb_parts[3].iov_base = 0;
xcb_parts[3].iov_len = -xcb_parts[2].iov_len & 3;
xcb_parts[4].iov_base = xcb_lendelta;
xcb_parts[4].iov_len = sizeof(xcb_lendelta);
xcb_parts[5].iov_base = (char *)str;
xcb_parts[5].iov_len = len * sizeof(int16_t);
xcb_parts[6].iov_base = 0;
xcb_parts[6].iov_len = -(xcb_parts[4].iov_len + xcb_parts[5].iov_len) & 3;
xcb_ret.sequence = xcb_send_request(c, 0, xcb_parts + 2, &xcb_req);
return xcb_ret;
}
int
xft_char_width_slot (uint16_t ch)
{
int slot = ch % MAX_WIDTHS;
while (xft_char[slot] != 0 && xft_char[slot] != ch)
{
slot = (slot + 1) % MAX_WIDTHS;
}
return slot;
}
int xft_char_width (uint16_t ch, font_t *cur_font)
{
int slot = xft_char_width_slot(ch);
if (!xft_char[slot]) {
XGlyphInfo gi;
FT_UInt glyph = XftCharIndex (dpy, cur_font->xft_ft, (FcChar32) ch);
XftFontLoadGlyphs (dpy, cur_font->xft_ft, FcFalse, &glyph, 1);
XftGlyphExtents (dpy, cur_font->xft_ft, &glyph, 1, &gi);
XftFontUnloadGlyphs (dpy, cur_font->xft_ft, &glyph, 1);
xft_char[slot] = ch;
xft_width[slot] = gi.xOff;
return gi.xOff;
} else if (xft_char[slot] == ch)
return xft_width[slot];
else
return 0;
}
int
shift (monitor_t *mon, int x, int align, int ch_width)
{
switch (align) {
case ALIGN_C:
xcb_copy_area(c, mon->pixmap, mon->pixmap, gc[GC_DRAW],
mon->width / 2 - x / 2, 0,
mon->width / 2 - (x + ch_width) / 2, 0,
x, bh);
x = mon->width / 2 - (x + ch_width) / 2 + x;
break;
case ALIGN_R:
xcb_copy_area(c, mon->pixmap, mon->pixmap, gc[GC_DRAW],
mon->width - x, 0,
mon->width - x - ch_width, 0,
x, bh);
x = mon->width - ch_width;
break;
}
/* Draw the background first */
fill_rect(mon->pixmap, gc[GC_CLEAR], x, 0, ch_width, bh);
return x;
}
void
draw_lines (monitor_t *mon, int x, int w)
{
/* We can render both at the same time */
if (attrs & ATTR_OVERL)
fill_rect(mon->pixmap, gc[GC_ATTR], x, 0, w, bu);
if (attrs & ATTR_UNDERL)
fill_rect(mon->pixmap, gc[GC_ATTR], x, bh - bu, w, bu);
}
void
draw_shift (monitor_t *mon, int x, int align, int w)
{
x = shift(mon, x, align, w);
draw_lines(mon, x, w);
}
int
draw_char (monitor_t *mon, font_t *cur_font, int x, int align, uint16_t ch)
{
int ch_width;
if (cur_font->xft_ft) {
ch_width = xft_char_width(ch, cur_font);
} else {
ch_width = (cur_font->width_lut) ?
cur_font->width_lut[ch - cur_font->char_min].character_width:
cur_font->width;
}
x = shift(mon, x, align, ch_width);
int y = bh / 2 + cur_font->height / 2- cur_font->descent + offsets_y[offset_y_index];
if (cur_font->xft_ft) {
XftDrawString16 (xft_draw, &sel_fg, cur_font->xft_ft, x,y, &ch, 1);
} else {
/* xcb accepts string in UCS-2 BE, so swap */
ch = (ch >> 8) | (ch << 8);
// The coordinates here are those of the baseline
xcb_poly_text_16_simple(c, mon->pixmap, gc[GC_DRAW],
x, y,
1, &ch);
}
draw_lines(mon, x, ch_width);
return ch_width;
}
rgba_t
parse_color (const char *str, char **end, const rgba_t def)
{
int string_len;
char *ep;
if (!str)
return def;
// Reset
if (str[0] == '-') {
if (end)
*end = (char *)str + 1;
return def;
}
// Hex representation
if (str[0] != '#') {
if (end)
*end = (char *)str;
fprintf(stderr, "Invalid color specified\n");
return def;
}
errno = 0;
rgba_t tmp = (rgba_t)(uint32_t)strtoul(str + 1, &ep, 16);
if (end)
*end = ep;
// Some error checking is definitely good
if (errno) {
fprintf(stderr, "Invalid color specified\n");
return def;
}
string_len = ep - (str + 1);
switch (string_len) {
case 3:
// Expand the #rgb format into #rrggbb (aa is set to 0xff)
tmp.v = (tmp.v & 0xf00) * 0x1100
| (tmp.v & 0x0f0) * 0x0110
| (tmp.v & 0x00f) * 0x0011;
case 6:
// If the code is in #rrggbb form then assume it's opaque
tmp.a = 255;
break;
case 7:
case 8:
// Colors in #aarrggbb format, those need no adjustments
break;
default:
fprintf(stderr, "Invalid color specified\n");
return def;
}
// Premultiply the alpha in
if (tmp.a) {
// The components are clamped automagically as the rgba_t is made of uint8_t
return (rgba_t){
.r = (tmp.r * tmp.a) / 255,
.g = (tmp.g * tmp.a) / 255,
.b = (tmp.b * tmp.a) / 255,
.a = tmp.a,
};
}
return (rgba_t)0U;
}
void
set_attribute (const char modifier, const char attribute)
{
int pos = indexof(attribute, "ou");
if (pos < 0) {
fprintf(stderr, "Invalid attribute \"%c\" found\n", attribute);
return;
}
switch (modifier) {
case '+':
attrs |= (1u<<pos);
break;
case '-':
attrs &=~(1u<<pos);
break;
case '!':
attrs ^= (1u<<pos);
break;
}
}
area_t *
area_get (xcb_window_t win, const int btn, const int x)
{
// Looping backwards ensures that we get the innermost area first
for (int i = area_stack.at - 1; i >= 0; i--) {
area_t *a = &area_stack.area[i];
if (a->window == win && a->button == btn && x >= a->begin && x < a->end)
return a;
}
return NULL;
}
void
area_shift (xcb_window_t win, const int align, int delta)
{
if (align == ALIGN_L)
return;
if (align == ALIGN_C)
delta /= 2;
for (int i = 0; i < area_stack.at; i++) {
area_t *a = &area_stack.area[i];
if (a->window == win && a->align == align && !a->active) {
a->begin -= delta;
a->end -= delta;
}
}
}
bool
area_add (char *str, const char *optend, char **end, monitor_t *mon, const int x, const int align, const int button)
{
int i;
char *trail;
area_t *a;
// A wild close area tag appeared!
if (*str != ':') {
*end = str;
// Find most recent unclosed area.
for (i = area_stack.at - 1; i >= 0 && !area_stack.area[i].active; i--)
;
a = &area_stack.area[i];
// Basic safety checks
if (!a->cmd || a->align != align || a->window != mon->window) {
fprintf(stderr, "Invalid geometry for the clickable area\n");
return false;
}
const int size = x - a->begin;
switch (align) {
case ALIGN_L:
a->end = x;
break;
case ALIGN_C:
a->begin = mon->width / 2 - size / 2 + a->begin / 2;
a->end = a->begin + size;
break;
case ALIGN_R:
// The newest is the rightmost one
a->begin = mon->width - size;
a->end = mon->width;
break;
}
a->active = false;
return true;
}
if (area_stack.at + 1 > area_stack.max) {
fprintf(stderr, "Cannot add any more clickable areas (used %d/%d)\n",
area_stack.at, area_stack.max);
return false;
}
a = &area_stack.area[area_stack.at++];
// Found the closing : and check if it's just an escaped one
for (trail = strchr(++str, ':'); trail && trail[-1] == '\\'; trail = strchr(trail + 1, ':'))
;
// Find the trailing : and make sure it's within the formatting block, also reject empty commands
if (!trail || str == trail || trail > optend) {
*end = str;
return false;
}
*trail = '\0';
// Sanitize the user command by unescaping all the :
for (char *needle = str; *needle; needle++) {
int delta = trail - &needle[1];
if (needle[0] == '\\' && needle[1] == ':') {
memmove(&needle[0], &needle[1], delta);
needle[delta] = 0;
}
}
// This is a pointer to the string buffer allocated in the main
a->cmd = str;
a->active = true;
a->align = align;
a->begin = x;
a->window = mon->window;
a->button = button;
*end = trail + 1;
return true;
}
bool
font_has_glyph (font_t *font, const uint16_t c)
{
if (font->xft_ft) {
if (XftCharExists(dpy, font->xft_ft, (FcChar32) c)) {
return true;
} else {
return false;
}
}
if (c < font->char_min || c > font->char_max)
return false;
if (font->width_lut && font->width_lut[c - font->char_min].character_width == 0)
return false;
return true;
}
font_t *
select_drawable_font (const uint16_t c)
{
// If the user has specified a font to use, try that first.
if (font_index != -1 && font_has_glyph(font_list[font_index - 1], c)) {
offset_y_index = font_index - 1;
return font_list[font_index - 1];
}
// If the end is reached without finding an appropriate font, return NULL.
// If the font can draw the character, return it.
for (int i = 0; i < font_count; i++) {
if (font_has_glyph(font_list[i], c)) {
offset_y_index = i;
return font_list[i];
}
}
return NULL;
}
void
parse (char *text)
{
font_t *cur_font;
int pos_x, align, button;
char *p = text, *block_end, *ep;
rgba_t tmp;
pos_x = 0;
align = ALIGN_L;
// Reset the stack position
area_stack.at = 0;
fill_rect(mon->pixmap, gc[GC_CLEAR], 0, 0, mon->width, bh);
/* Create xft drawable */
if (!(xft_draw = XftDrawCreate (dpy, mon->pixmap, visual_ptr , colormap))) {
fprintf(stderr, "Couldn't create xft drawable\n");
}
for (;;) {
if (*p == '\0' || *p == '\n')
break;
if (p[0] == '%' && p[1] == '{' && (block_end = strchr(p++, '}'))) {
p++;
while (p < block_end) {
int w;
while (isspace(*p))
p++;
switch (*p++) {
case '+': set_attribute('+', *p++); break;
case '-': set_attribute('-', *p++); break;
case '!': set_attribute('!', *p++); break;
case 'R':
tmp = fgc;
fgc = bgc;
bgc = tmp;
update_gc();
break;
case 'l': pos_x = 0; align = ALIGN_L; break;
case 'c': pos_x = 0; align = ALIGN_C; break;
case 'r': pos_x = 0; align = ALIGN_R; break;
case 'A':
button = XCB_BUTTON_INDEX_1;
// The range is 1-5
if (isdigit(*p) && (*p > '0' && *p < '6'))
button = *p++ - '0';
if (!area_add(p, block_end, &p, mon, pos_x, align, button))
return;
break;
case 'B': bgc = parse_color(p, &p, dbgc); update_gc(); break;
case 'F': fgc = parse_color(p, &p, dfgc); update_gc(); break;
case 'U': ugc = parse_color(p, &p, dugc); update_gc(); break;
case 'O':
errno = 0;
w = (int) strtoul(p, &p, 10);
if (errno)
continue;
draw_shift(mon, pos_x, align, w);
pos_x += w;
area_shift(mon->window, align, w);
break;
case 'T':
if (*p == '-') { //Reset to automatic font selection
font_index = -1;
p++;
break;
} else if (isdigit(*p)) {
font_index = (int)strtoul(p, &ep, 10);
// User-specified 'font_index' ∊ (0,font_count]
// Otherwise just fallback to the automatic font selection
if (!font_index || font_index > font_count)
font_index = -1;
p = ep;
break;
} else {
fprintf(stderr, "Invalid font slot \"%c\"\n", *p++); //Swallow the token
break;
}
// In case of error keep parsing after the closing }
default:
p = block_end;
}
}
// Eat the trailing }
p++;
} else { // utf-8 -> ucs-2
uint8_t *utf = (uint8_t *)p;
uint16_t ucs;
// ASCII
if (utf[0] < 0x80) {
ucs = utf[0];
p += 1;
}
// Two byte utf8 sequence
else if ((utf[0] & 0xe0) == 0xc0) {
ucs = (utf[0] & 0x1f) << 6 | (utf[1] & 0x3f);
p += 2;
}
// Three byte utf8 sequence
else if ((utf[0] & 0xf0) == 0xe0) {
ucs = (utf[0] & 0xf) << 12 | (utf[1] & 0x3f) << 6 | (utf[2] & 0x3f);
p += 3;
}
// Four byte utf8 sequence
else if ((utf[0] & 0xf8) == 0xf0) {
ucs = 0xfffd;
p += 4;
}
// Five byte utf8 sequence
else if ((utf[0] & 0xfc) == 0xf8) {
ucs = 0xfffd;
p += 5;
}
// Six byte utf8 sequence
else if ((utf[0] & 0xfe) == 0xfc) {
ucs = 0xfffd;
p += 6;
}
// Not a valid utf-8 sequence
else {
ucs = utf[0];
p += 1;
}
cur_font = select_drawable_font(ucs);
if (!cur_font)
continue;
if(cur_font->ptr)
xcb_change_gc(c, gc[GC_DRAW] , XCB_GC_FONT, (const uint32_t []) {
cur_font->ptr
});
int w = draw_char(mon, cur_font, pos_x, align, ucs);
pos_x += w;
area_shift(mon->window, align, w);
}
}
XftDrawDestroy (xft_draw);
}
void
font_load (const char *pattern)
{
if (font_count >= MAX_FONT_COUNT) {
fprintf(stderr, "Max font count reached. Could not load font \"%s\"\n", pattern);
return;
}
xcb_query_font_cookie_t queryreq;
xcb_query_font_reply_t *font_info;
xcb_void_cookie_t cookie;
xcb_font_t font;
font = xcb_generate_id(c);
font_t *ret = calloc(1, sizeof(font_t));
if (!ret)
return;
cookie = xcb_open_font_checked(c, font, strlen(pattern), pattern);
if (!xcb_request_check (c, cookie)) {
queryreq = xcb_query_font(c, font);
font_info = xcb_query_font_reply(c, queryreq, NULL);
ret->xft_ft = NULL;
ret->ptr = font;
ret->descent = font_info->font_descent;
ret->height = font_info->font_ascent + font_info->font_descent;
ret->width = font_info->max_bounds.character_width;
ret->char_max = font_info->max_byte1 << 8 | font_info->max_char_or_byte2;
ret->char_min = font_info->min_byte1 << 8 | font_info->min_char_or_byte2;
// Copy over the width lut as it's part of font_info
int lut_size = sizeof(xcb_charinfo_t) * xcb_query_font_char_infos_length(font_info);
if (lut_size) {
ret->width_lut = malloc(lut_size);
memcpy(ret->width_lut, xcb_query_font_char_infos(font_info), lut_size);
}
free(font_info);
} else if ((ret->xft_ft = XftFontOpenName (dpy, scr_nbr, pattern))) {
ret->ptr = 0;
ret->ascent = ret->xft_ft->ascent;
ret->descent = ret->xft_ft->descent;
ret->height = ret->ascent + ret->descent;
} else {
fprintf(stderr, "Could not load font %s\n", pattern);
free(ret);
return;
}
font_list[font_count++] = ret;
}
void add_y_offset(int offset) {
if (offset_y_count >= MAX_FONT_COUNT) {
fprintf(stderr, "Max offset count reached. Could not set offset \"%d\"\n", offset);
return;
}
offsets_y[offset_y_count] = strtol(optarg, NULL, 10);
if (offset_y_count == 0) {
for (int i = 1; i < MAX_FONT_COUNT; ++i) {
offsets_y[i] = offsets_y[0];
}
}
++offset_y_count;
}
enum {
NET_WM_WINDOW_TYPE,
NET_WM_WINDOW_TYPE_DOCK,
NET_WM_DESKTOP,
NET_WM_STRUT_PARTIAL,
NET_WM_STRUT,
NET_WM_STATE,
NET_WM_STATE_STICKY,
NET_WM_STATE_ABOVE,
};
void
set_ewmh_atoms (void)
{
const char *atom_names[] = {
"_NET_WM_WINDOW_TYPE",
"_NET_WM_WINDOW_TYPE_DOCK",
"_NET_WM_DESKTOP",
"_NET_WM_STRUT_PARTIAL",
"_NET_WM_STRUT",
"_NET_WM_STATE",
// Leave those at the end since are batch-set
"_NET_WM_STATE_STICKY",
"_NET_WM_STATE_ABOVE",
};
const int atoms = sizeof(atom_names)/sizeof(char *);
xcb_intern_atom_cookie_t atom_cookie[atoms];
xcb_atom_t atom_list[atoms];
xcb_intern_atom_reply_t *atom_reply;
// As suggested fetch all the cookies first (yum!) and then retrieve the
// atoms to exploit the async'ness
for (int i = 0; i < atoms; i++)
atom_cookie[i] = xcb_intern_atom(c, 0, strlen(atom_names[i]), atom_names[i]);
for (int i = 0; i < atoms; i++) {
atom_reply = xcb_intern_atom_reply(c, atom_cookie[i], NULL);
if (!atom_reply)
return;
atom_list[i] = atom_reply->atom;
free(atom_reply);
}
// Prepare the strut array
int strut[12] = {0};
if (topbar) {
strut[2] = bh;
strut[8] = mon->x;
strut[9] = mon->x + mon->width;
} else {
strut[3] = bh;
strut[10] = mon->x;
strut[11] = mon->x + mon->width;
}
xcb_change_property(c, XCB_PROP_MODE_REPLACE, mon->window, atom_list[NET_WM_WINDOW_TYPE], XCB_ATOM_ATOM, 32, 1, &atom_list[NET_WM_WINDOW_TYPE_DOCK]);
xcb_change_property(c, XCB_PROP_MODE_APPEND, mon->window, atom_list[NET_WM_STATE], XCB_ATOM_ATOM, 32, 2, &atom_list[NET_WM_STATE_STICKY]);
xcb_change_property(c, XCB_PROP_MODE_REPLACE, mon->window, atom_list[NET_WM_DESKTOP], XCB_ATOM_CARDINAL, 32, 1, (const uint32_t []) {
0u - 1u
} );
xcb_change_property(c, XCB_PROP_MODE_REPLACE, mon->window, atom_list[NET_WM_STRUT_PARTIAL], XCB_ATOM_CARDINAL, 32, 12, strut);
xcb_change_property(c, XCB_PROP_MODE_REPLACE, mon->window, atom_list[NET_WM_STRUT], XCB_ATOM_CARDINAL, 32, 4, strut);
xcb_change_property(c, XCB_PROP_MODE_REPLACE, mon->window, XCB_ATOM_WM_NAME, XCB_ATOM_STRING, 8, 3, "bar");
xcb_change_property(c, XCB_PROP_MODE_REPLACE, mon->window, XCB_ATOM_WM_CLASS, XCB_ATOM_STRING, 8, 12, "lemonbar\0Bar");
}
monitor_t *
monitor_new (int x, int y, int width, int height)
{
monitor_t *ret;
ret = calloc(1, sizeof(monitor_t));
if (!ret) {
fprintf(stderr, "Failed to allocate new monitor\n");
exit(EXIT_FAILURE);
}
ret->x = x;
ret->y = (topbar ? by : height - bh - by) + y;
ret->width = width;
ret->height = height;
ret->window = xcb_generate_id(c);
int depth = (visual == scr->root_visual) ? XCB_COPY_FROM_PARENT : 32;
xcb_create_window(c, depth, ret->window, scr->root,
ret->x, ret->y, width, bh, 0,
XCB_WINDOW_CLASS_INPUT_OUTPUT, visual,
XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK | XCB_CW_COLORMAP,
(const uint32_t []) {
bgc.v, bgc.v, dock, XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_BUTTON_PRESS, colormap
});
ret->pixmap = xcb_generate_id(c);
xcb_create_pixmap(c, depth, ret->pixmap, ret->window, width, bh);
return ret;
}
int
rect_sort_cb (const void *p1, const void *p2)
{
const xcb_rectangle_t *r1 = (xcb_rectangle_t *)p1;
const xcb_rectangle_t *r2 = (xcb_rectangle_t *)p2;
if (r1->x < r2->x || r1->y + r1->height <= r2->y)
{
return -1;
}
if (r1->x > r2->x || r1->y + r1->height > r2->y)
{
return 1;
}
return 0;
}
void
get_randr_monitors (void)
{
xcb_randr_get_screen_resources_current_reply_t *rres_reply;
xcb_randr_output_t *outputs;
int i, num;
rres_reply = xcb_randr_get_screen_resources_current_reply(c,
xcb_randr_get_screen_resources_current(c, scr->root), NULL);
if (!rres_reply) {
fprintf(stderr, "Failed to get current randr screen resources\n");
return;
}
num = xcb_randr_get_screen_resources_current_outputs_length(rres_reply);
outputs = xcb_randr_get_screen_resources_current_outputs(rres_reply);
// There should be at least one output
if (num < 1) {
free(rres_reply);
return;
}
// Find our output
for (i = 0; i < num; i++) {
xcb_randr_get_output_info_reply_t *oi_reply;
xcb_randr_get_crtc_info_reply_t *ci_reply;
oi_reply = xcb_randr_get_output_info_reply(c, xcb_randr_get_output_info(c, outputs[i], XCB_CURRENT_TIME), NULL);
// Output disconnected or not attached to any CRTC ?
if (!oi_reply || oi_reply->crtc == XCB_NONE || oi_reply->connection != XCB_RANDR_CONNECTION_CONNECTED) {
free(oi_reply);
continue;
}
// Check the monitor name
char i_mon_name[512];
// Because why bother using '\0' in our strings. That's too high level for us!
memcpy(i_mon_name, xcb_randr_get_output_info_name(oi_reply), oi_reply->name_len);
i_mon_name[oi_reply->name_len] = '\0';
if (strcmp(mon_name, i_mon_name))
continue;
ci_reply = xcb_randr_get_crtc_info_reply(c,
xcb_randr_get_crtc_info(c, oi_reply->crtc, XCB_CURRENT_TIME), NULL);
free(oi_reply);
if (!ci_reply) {
fprintf(stderr, "Failed to get RandR ctrc info\n");
free(rres_reply);
return;
}
// There's no need to handle rotated screens here (see #69)
if (bw < 0)
bw = ci_reply->width - bx;
// Use the first font height as all the font heights have been set to the biggest of the set
if (bh < 0 || bh > ci_reply->height)
bh = font_list[0]->height + bu + 2;
// Check the geometry
if (bx + bw > ci_reply->width || by + bh > ci_reply->height) {
fprintf(stderr, "The geometry specified doesn't fit the screen!\n");
exit(EXIT_FAILURE);
}
mon = monitor_new(
bx+ci_reply->x,
ci_reply->y,
min(bw, ci_reply->width),
ci_reply->height);