Commit Graph

167 Commits

Author SHA1 Message Date
Ingo Bürk b9b1a60b5d Fix segfault when calling "i3 -C".
Commit 287a0b4 introduced a segfault when validating the i3 config
as the root_screen will not be set in this case, causing a null
pointer dereference.

fixes #2144
2016-01-05 22:50:38 -05:00
Ingo Bürk 1f660a4cc4 Move title_format from window to container.
This patch moves the title_format information from windows to containers.
Furthermore, it allows correctly setting it on window-less containers and
displays the title accordingly for split containers.

We now also dump and read title_format in GET_TREE / during restarts.

fixes #2120
2016-01-05 12:22:27 -05:00
Alex Auvolat 287a0b4c3c get_colorpixel support for non-true color displays
Re-introduce fully-fledged get_colorpixel function, which enables arbitrary
color depths for the display.  The previous code is kept as an optimization for
the case of a true color display, where a X11 roundtrip is unnecessary.
2015-12-29 14:26:21 +01:00
Alex Auvolat c6a4e4519f Correct color management for pango fonts
Corrects the cases where the colorpixel is not 0xRRGGBB : we have to
use the full color_t struct to describe font colors, as Pango expects
RGB values and not an XCB colorpixel value.
2015-12-29 14:26:21 +01:00
Alex Auvolat 19fd6817af Refactor extern definition of conn and root_screen 2015-12-29 12:47:12 +01:00
Ingo Bürk 35a4e22f4a Fail gracefully when the gc cannot be created
We now only log an error but do not exit when creating the graphics
context fails. While, if this happens, rendering will likely be wrong,
this is still better than terminating the user's session entirely due
to a rendering problem, potentially causing data loss.

relates to #2094
2015-12-03 18:59:35 +01:00
Ingo Bürk bf442ff5de Make freeing surfaces idempotent
If a window with border is set to "border none" and then closed, we would
call cairo_destroy / cairo_surface_destroy twice, causing an assertion
failure in cairo as the objects already had zero references the second
time. We fix this by explicitly setting these objects to NULL.

relates to #1278
2015-11-23 22:18:02 +01:00
Ingo Bürk 780cb8d15d Use 32-bit visual by default if available.
With this patch, we use 32-bit visuals per default whenever it is
available. Otherwise, we fall back to the actual root window's
depth, which will typically be 24-bit.

Before this patch, we already used 32-bit depth for containers with
a window that uses 32-bit. However, this means that we didn't use
32-bit for split parent containers on which decoration is drawn.
For 32-bit windows using transparency, this caused a graphical glitch
because the decoration pixmap behind it would show through. This
behavior is fixed with this change.

relates to #1278
2015-11-23 22:18:02 +01:00
Ingo Bürk a4afd1b642 Parse colors as color_t instead of colorpixel.
With this patch we remove the temporary draw_util_colorpixel_to_color
function we introduced previously by parsing the colors as color_t to
begin with.

relates to #1278
2015-11-23 22:18:02 +01:00
Ingo Bürk fdeb4e0c36 Skip drawing for uninitialized surfaces.
We return early from drawing functions if the surface to draw to is not
initialized properly. There is no immediate need to do so, at least no
crashes have been observed, but it mirrors the previous behavior a bit
more closely. Furthermore, i3 should not crash due to not being able to
make some rendering call, so this provides some stability.

relates to #1278
2015-11-23 22:18:02 +01:00
Ingo Bürk b665049883 Migrate i3 rendering to cairo.
This patch migrates all decoration rendering of i3 to cairo. Using the
compile switch CAIRO_SUPPORT, rendering can be switched back to the
previous XCB behavior, just like with the previous migration to cairo
in i3bar.

This patch also fixes a bug in draw_util.c where copying one surface
to another would use incorrect coordinates if the source coordinates
are not 0, 0.

Furthermore, this patch implicitly fixes some minor issues in the
decoration rendering which would be ignored previously due to the fact
that errors would only show up in the event queue, but not cause the
rendering code path to crash. One example is zero-height pixmaps which
are not allowed. Using cairo, these would cause i3 to instantly segfault,
so this patch avoids this.

Lastly, this patch annotates other issues found but not fixed in this patch
using TODO comments, e.g., the zero-height check not working correctly
and the comment that it should probably work the same way for zero-width
pixmaps.

relates to #1278
2015-11-23 22:18:02 +01:00
Ingo Bürk d9bbfb7b35 Fix draw_util_copy_surface.
This patch fixes a bug when copying one surface to another.
Since it only exposes itself when used with non-trivial source
coordinates, it didn't surface before when only used for i3bar.

relates to #1278
2015-11-23 22:18:02 +01:00
Ingo Bürk 90d94298fa Move draw_util.c to libi3.
In order to prepare for using cairo for rendering i3 decorations,
we need to make the draw_util.c from i3bar available via libi3 such
that both i3bar and i3 can use it.

relates to #1278
2015-11-23 22:18:02 +01:00
Ingo Bürk fec61791e1 Rename is_markup to pango_markup. 2015-10-13 09:59:26 +02:00
Ingo Bürk 21c0c20843 Remove support for 32-bit visuals and RGBA colors.
fixes #1984
2015-10-11 00:33:14 +02:00
Ingo Bürk a5d4c7c9ab Allow text drawing to use the alpha channel.
We pass alpha channel information to the current text drawing code
and use it if it is available. The previous behavior of using full
opacity for RGB format colors is preserved.
2015-10-07 22:10:47 +02:00
Ingo Bürk 1c4100ce5d Use 32-bit visuals for i3bar when possible and allow RGBA colors.
This patch creates all necessary windows for i3bar with 32-bit visuals if available.
It also introduces the possibility to define RGBA colors (next to RGB colors), which
allows the user to set the opacity of any color. This requires running a compositor.

With this patch we also start supporting _NET_SYSTEM_TRAY_VISUAL, which is necessary
for the tray icons so they create the tray window with the correct depth and visual.
2015-10-06 23:01:57 +02:00
Ingo Bürk 410c5da7cf Use cairo for all drawing operations in i3bar.
fixes #1878
2015-10-05 09:29:17 +02:00
Ingo Bürk d3c6e36731 Free the string returned by g_markup_escape_text.
fixes #1896
2015-09-05 16:21:16 +02:00
Michael Stapelberg 419b73be9e Merge pull request #1816 from tcreech/tcreech-for-illumos
Changes for compiling i3 on Illumos
2015-08-04 00:10:06 -07:00
shdown c85d16faa4 Use safe wrappers wherever possible 2015-08-03 12:50:50 +03:00
shdown bc52fae15c libi3: change scalloc() signature to match calloc() 2015-08-03 12:50:13 +03:00
Tim Creech f41018b33e Changes for compiling on Illumos
* common.mk: use -lsocket -liconv -lgen on Illumos/Solaris
* mkdirp: return int and accept a mode argument
* use i3's mkdirp on everything except Illumos
2015-07-30 07:44:10 -04:00
Ingo Bürk 5a8d66a1d5 Parse the title_format and display the customized window title if a format was set.
The format string set with "title_format" can contain the placeholder "%title" which will be replaced with the actual window title.

By not overwriting window->name itself, we make sure that assignment matching still works as expected.

fixes #1723
2015-06-29 09:13:31 +02:00
Theo Buehler ea6af13127 mkdirp: do not throw an error if directory exists
If I restart i3 4.10.2 twice, e.g. with

$ i3-msg restart; sleep 3; i3-msg restart

the second time I get the following two errors:

05/22/15 10:46:03 - ERROR: mkdir(/tmp/i3-theo.toAK7N) failed: File exists
05/22/15 10:46:03 - ERROR: Could not create "/tmp/i3-theo.toAK7N" for storing the restart layout, layout will be lost.

The first one is from mkdirp() in src/ipc.c and the second one is from
store_restart_layout() in src/util.c.

Notice that I do _not_ get the ``open()'' or ``Could not write restart layout to
...'' error messages, so the layout writing code after line 260 in
store_restart_layout() succeeded and the layout isn't actually lost.  Thus,
these error messages are a bit misleading, especially the second one (which is
triggered by the failure of mkdirp()).

POSIX says about `mkdir -p':

``Each dir operand that names an existing directory shall be ignored without
error.''

Therefore, I suggest the following simple patch that makes mkdirp() succeed if
the named file exists and actually is a directory.  This silences the second
error as well.
2015-05-23 13:12:18 +02:00
Michael Hofmann 0319bda1d4 Introduce sstrndup wrapper. 2015-05-06 16:33:15 +02:00
Deiz 884214f14f Update copyright notices and get rid of ranges
The script used to make these changes can be found at:

   https://gist.github.com/Deiz/32322020f76d23e2bf8f
2015-04-20 17:50:21 -04:00
Deiz e622c42ef0 Move mkdirp into libi3 2015-03-29 17:18:00 -04:00
Deiz 4daed31c3e Move resolve_tilde and get_config_path into libi3 2015-03-29 14:45:42 -04:00
Michael Stapelberg 6b04f28b48 fix remaining warnings 2015-03-29 17:12:20 +02:00
hwangcc 42515308e7 Add a safe wrapper for write and fix some warnings
1. Add a function writeall and make swrite wrap that function. Use either writeall or swrite, depending on whether we want to exit on errors or not.
2. Fix warnings when compiling with a higher optimisation level.
(CFLAGS ?= -pipe -O3 -march=native -mtune=native -freorder-blocks-and-partition)

Signed-off-by: hwangcc <hwangcc@csie.nctu.edu.tw>
2015-03-29 10:22:34 +08:00
Tony Crisci e681f34ec1 i3bar: set markup per block
Add `markup` to the i3bar protocol as a block member.

This is a string that determines how the block should be parsed as
markup. "pango" indicates the block should be parsed as Pango markup.
"none" indicates the block should not be parsed as markup.
2015-03-24 02:27:38 -04:00
Ingo Bürk c9019ada4e Add support for short_text
When the statusline is too long, try to use the short_text property of each status block before falling back to truncating it.
fixes #1092
2015-03-23 11:24:30 +01:00
Ingo Bürk 8272924117 Introduce a function to copy i3strings 2015-03-23 11:03:45 +01:00
Tony Crisci 6fb7fc9bc6 Bugfix: validation segfault
When `new_window` is given in the config, config validation with `i3 -C`
would segfault.

Add a NULL check in logical_px() to check for the case when the config
is being validated without an X server to prevent this.
2015-03-22 05:46:52 -04:00
Michael Stapelberg 5b80713233 Merge pull request #1549 from shdown/y-offset-fix
Fix incorrect y-offset for text in i3bar (2)
2015-03-21 16:32:19 +01:00
shdown 123de9a25f Fix incorrect y-offset for text in i3bar (2)
014aa7ff74 fixed incorrect align of small
symbols, but also introduced a problem with texts with mixed large and
normal symbols. Fix it by centering the text vertically only if its
height is smaller that the saved font height.
Fixes #1543.
2015-03-15 10:32:17 +03:00
Diana Thayer 94b1e76af4 degendered terms 2015-03-11 21:41:43 -07:00
Michael Stapelberg 3c5df50c54 Merge branch 'master' of https://github.com/ton/i3 into ton-master 2015-03-01 16:50:37 +01:00
Ton van den Heuvel 014aa7ff74 Fix incorrect y-offset for text in i3bar
When using Pango to draw text in i3bar, the y-offset of the text is
incorrectly calculated in case all characters in the string to draw are
smaller than the cached font height. Fixes #1494.
2015-02-26 21:58:42 +01:00
Tony Crisci e18e2b9f98 i3bar: use Pango markup
Parse text within workspace buttons and the i3bar statusline as Pango
markup. This lets people specify things like font weight, text color,
background color, font size, and font family in the text of i3bar.

fixes #1468
2015-02-12 14:45:34 -05:00
Tony Crisci e91a9174e2 libi3: free previous font on font load
When loading a new font with `load_font`, free the previously loaded
font with `free_font`.

If no font is loaded, `free_font` will simply return (instead of
crashing because of a double free).
2015-02-10 15:11:40 -05:00
aszlig 9058fc44e6 Allow to validate the config file without X.
We're going to call parse_configuration() very early if -C is given on
the command line. Instead of the previous "only_check_config", which has
been a global variable, we now simply pass use_nagbar as false if we're
just validating.

This causes the whole parsing to run without X and of course without
starting nagbar and displaying the errors to standard out/error instead.

The return code of parse_configuration() is now a boolean which
represents whether an error occured during parsing and the programs exit
code is returned accordingly.

Although the config parser still has a lot of side-effects, we now can
parse without the need to have an XCB connection. A nicer implementation
would be to just set the new font and load it just after we're done
parsing, but to ensure we don't break functionality we just load a dummy
FONT_TYPE_NONE if XCB isn't available. The main reason for going this
route is that it's a bit difficult to test fonts in a distribution
agnostic way without bundling fonts with i3 (or Xdummy to be more
exact).

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2014-08-25 19:34:26 +02:00
Michael Stapelberg 33d1d5d3c6 Treat everything up to 120 dpi as 96 dpi (Thanks jefvel)
See the comment in the source for rationale.
2014-08-23 16:02:30 +02:00
Michael Stapelberg 9200094203 format **/*.c with clang-format-3.5
This has multiple effects:

1) The i3 codebase is now consistently formatted. clang-format uncovered
   plenty of places where inconsistent code made it into our code base.

2) When writing code, you don’t need to think or worry about our coding
   style. Write it in yours, then run clang-format-3.5

3) When submitting patches, we don’t need to argue about coding style.

The basic idea is that we don’t want to care about _how_ we write the
code, but _what_ it does :). The coding style that we use is defined in
the .clang-format config file and is based on the google style, but
adapted in such a way that the number of modifications to the i3 code
base is minimal.
2014-06-15 19:07:02 +02:00
Tony Crisci 7e564713f9 Don't ELOG ipc EOF
Receiving EOF from a client is not an error, but rather a standard way a
client may disconnect from the IPC. This should rather be logged from
a consumer of the libi3 ipc_recv_message() function as a normal client
disconnect event.

fixes #1252
2014-06-08 13:54:55 +02:00
Michael Stapelberg 3760a48abe truncate DPI to an integer before multiplying (Thanks eeemsi)
This fixes i3bar workspace button rendering on non-DPI screens
(oldschool!)
2014-04-26 22:50:31 +02:00
Michael Stapelberg c79c49f69d libi3: add logical_px() for Retina display support 2014-04-26 17:17:37 +02:00
Peter Boström 9c15b9504e Fix clang -Wextra except -Wunused-parameter.
Cleared all warnings that occur when passing
CFLAGS="-Wall -Wextra -Wno-unused-parameter" to make using clang 3.3 on
Linux x86-64.
2014-01-02 22:15:33 +01:00
Michael Stapelberg 0883dfbe14 only LOG() the DPI when it changes, DLOG() it otherwise (Thanks lkraav)
This avoids flooding stdout every time some text (e.g. a window
decoration) is drawn, yet leaves the message in place when it’s actually
relevant (upon DPI changes).

fixes #1115
2013-12-24 10:35:56 +01:00
Lancelot SIX eca5e4598a libi3/root_atom_contents: handle data of arbitrary length
Handle data fetched from xcb_get_property_unchecked with arbitrary
length. This avoids having to rely on PATH_MAX macro where it is not
necessary.
2013-11-26 19:58:35 +01:00
Lancelot SIX 18cfc36408 libi3/root_atom_contents: Free xcb reply structures
Free memory allocated during xcb calls.
2013-11-24 13:52:31 +01:00
Lancelot SIX f22995393a Remove references to PATH_MAX macro
Since the macro PATH_MAX is not defined on every system (GNU/Hurd being
one of those who do not define it), we remove all references to this
macro. Instead, we use a buffer of arbitraty size and grow it when
needed to contain paths.
2013-11-24 13:50:29 +01:00
Michael Stapelberg d3beff2339 make i3bar use libi3’s root_atom_contents()
This removes code duplication, which will be useful for a subsequent
commit.

Furthermore, we now don’t open X11 connections unnecessarily in some
corner cases.
2013-11-22 15:48:45 +01:00
Michael Stapelberg 5a4efd04c1 refactor previous commit’s new code into a function, add log message 2013-11-18 23:17:44 +01:00
Bas Pape 1d6450f0e8 libi3/font: Set DPI for the pango context
The pango font specification accepts a font size in points, but pango
defaults to a DPI of 96. Create a default PangoContext (which
internally creates a default PangoCairoFontMap as usual) and set the
DPI to the value of the root Screen manually.

Fixes #1115
2013-11-18 23:12:08 +01:00
Quentin Glidic a49dfaf26c libi3/font: Draw the text at the expected place
When drawing a text with Pango, shift it to the top according to the top
if the glyph if taller than expected
We always shift of (height - savedHeight) which is a no-op for normal glyphs

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
2013-09-30 22:51:52 +02:00
Michael Stapelberg 0bfcf1a762 Improve error message when $XDG_RUNTIME_DIR is not writable 2013-09-25 19:33:28 +02:00
Michael Stapelberg 6582da9939 Merge branch 'master' into next 2013-06-29 19:28:41 +02:00
Michael Stapelberg cecadbfdfe Bugfix: fix bus error on OpenBSD/sparc64 (Thanks tobiasu)
fixes #1034
2013-06-29 19:28:13 +02:00
Michael Stapelberg 75206db3a1 Bugfix: s/i3bar/i3-nagbar/ (Thanks badboy) 2013-06-10 23:23:22 +02:00
Michael Stapelberg cbdc8c33dd remove unused pathlen (Thanks gcc) 2013-06-10 23:10:46 +02:00
Michael Stapelberg 57b43d84f9 retab! get_exe_path.c
We seriously need auto-formatting.
2013-06-10 23:08:42 +02:00
Michael Stapelberg 3930615104 Bugfix: sizeof(destpath)-1 to have space for the trailing NUL (Thanks Merovius) 2013-06-10 23:08:17 +02:00
Michael Stapelberg d51173b2ba i3-nagbar: take our terminal execution kludge to the next level
Please read commit 2bf80528bd first.
Then read the comment within the code of this commit.
Then run in circles and cry loudly.

fixes #1002
fixes #1026
2013-06-10 22:55:39 +02:00
Michael Stapelberg fa1b436fca Bugfix: mark IPC fd CLOEXEC (Thanks Layus)
Without this fix, children of i3bar would inherit the file descriptor of
the IPC connection to i3. Therefore, even if i3bar exits with SIGSEGV,
the connection to i3 stays open. Because nobody actually reads any
messages by i3, the buffer will fill up and i3 can’t deliver any more
messages, and thus busy-loops at that point.

fixes #995
2013-04-14 10:12:21 +02:00
Michael Stapelberg 62b0df0640 Make i3-nagbar use the same font as configured for i3 2013-01-26 09:55:38 +01:00
Michael Stapelberg dcb8ac84f8 ipc_recv_message: store message_type, don’t compare. add distinct EOF retval
Also use ELOG, which requires i3-msg to provide logging functions.
2013-01-23 18:51:39 +01:00
Michael Stapelberg 7b0d75ee0a ipc_send_message: use stack frame with fixed size 2013-01-11 19:09:41 +01:00
Michael Stapelberg fc0e80ee7f Merge branch 'master' into next 2013-01-09 18:11:17 +01:00
Michael Stapelberg f5b7bfb12e Bugfix: fix IPC messages writes with low buffer sizes (Thanks jasper, dcoppa)
Use the following command to reproduce this bug:

    echo 4096 | sudo tee /proc/sys/net/core/wmem_default

Then just switch workspaces with some windows on it and i3bar would
exit due to malformed IPC messages.

This bug hits OpenBSD users (and possibly other BSDs) due to their lower
default buffer size.

fixes #896
2013-01-09 18:11:03 +01:00
Michael Stapelberg 9882a4dc09 fix formatting in get_process_filename.c 2012-12-24 16:57:30 +01:00
Michael Stapelberg b3d7531947 refactor both i3-nagbar starts into src/util.c
With this change, libev >= 4 is a hard dependency. It should be present
in all major linux distributions (even the latest ubuntu LTS).
2012-12-24 16:53:20 +01:00
Kacper Kowalik (Xarthisius) ef81bd183b Repect AR environment variable 2012-12-17 10:24:42 +01:00
Quentin Glidic f0d2d84b1c libi3/font: Use "pango:" prefix to avoid confusion
Also add a user-friendly font description syntax to userguide
2012-11-07 21:23:21 +01:00
Michael Stapelberg e4019caf7e clean old and new libi3 (Thanks SardemFF7) 2012-09-20 10:55:26 +02:00
Michael Stapelberg b9fde552d0 fix make clean targets 2012-09-19 18:05:51 +02:00
Michael Stapelberg 4636eb840d fix compilation with older xcb-util with -DXCB_COMPAT (Thanks okraits) 2012-09-03 14:55:27 +02:00
Michael Stapelberg 125bf09e70 pango: divide by PANGO_SCALE to get a "normal" font size 2012-08-13 13:39:58 +02:00
Michael Stapelberg 2896ae8057 logging: make libi3 use verboselog()/errorlog(), provide it in each caller
While this is a bit ugly, it makes the log messages end up where they
are supposed to: in the shmlog/stdout in case of i3 and on stdout in
case of utilities such as i3-input
2012-08-13 13:27:16 +02:00
Quentin Glidic 310f542937 libi3/font: Log the used font 2012-08-13 11:39:30 +02:00
Fernando Tarlá Cardoso Lemos 6ff3f7abad libi3: Implement Pango rendering 2012-08-13 11:39:30 +02:00
Fernando Tarlá Cardoso Lemos ec17a26b0e libi3: Rework font to support multiple backends 2012-08-13 11:39:29 +02:00
Fernando Tarlá Cardoso Lemos 5d8ccc5912 libi3: Introduce get_visualtype 2012-08-13 11:37:34 +02:00
Quentin Glidic 210fc6dfed libi3: Rework predict_text_width
predict_text_width now takes an i3String as argument
2012-08-13 11:37:23 +02:00
Quentin Glidic 53365fa887 libi3: Rework draw_text
We now have two versions of draw_text
draw_text: Now takes an i3String
draw_text_ascii: Designed for static strings in plain ASCII
2012-08-13 11:37:21 +02:00
Fernando Tarlá Cardoso Lemos 7f22d4fe32 libi3: Implement i3String
New type designed to handle UCS-2/UTF-8 conversion nicely
2012-08-13 11:29:18 +02:00
Michael Stapelberg b8e782c983 root_atom_contents: handle CARDINAL atoms such as I3_PID 2012-08-12 14:30:24 +02:00
Quentin Glidic c7029a5e21 common.mk: Introduce I3_*FLAGS
CPPFLGES, CFLAGS and LDFLAGS should be user variables
We now provide default flags but use I3_*FLAGS flags for our own needed
flags

Also reoder lib flags a bit
2012-07-22 23:53:49 +02:00
Quentin Glidic 3b1b72ecbb *.mk: Support passing specific CFLAGS/LIBS 2012-07-22 23:53:13 +02:00
Quentin Glidic e452acb30e Add stub Makefiles to allow subdir make calls 2012-07-22 19:57:48 +02:00
Quentin Glidic e3b9ffe381 Move libi3 to the new Makefile layout 2012-07-22 19:57:21 +02:00
Michael Stapelberg f229570bbc remove unused variable 2012-05-09 19:58:50 +02:00
Michael Stapelberg eeb6ff9237 Move is_debug_build() to libi3/ 2012-05-09 19:12:20 +02:00
Michael Stapelberg 206b96202c Use (void) instead of () for functions without args (Thanks fernandotcl)
See also:
http://article.gmane.org/gmane.linux.kernel/1268792

The C compiler will handle (void) as "no arguments" and () as "variadic
function" (equivalent to (...)) which might lead to subtle errors, such
as the one which was fixed with commit 0ea64ae4.
2012-03-31 10:53:04 +02:00
Fernando Tarlá Cardoso Lemos 95f510e724 Don't multiply by sizeof(char) twice.
This is a no-op, since sizeof(char) is 1. But still, we shouldn't
multiply twice, it's misleading.
2012-03-26 16:47:44 +02:00
Fernando Tarlá Cardoso Lemos 484c2a697b Document text_len in the draw_text description. 2012-03-26 16:47:23 +02:00
Michael Stapelberg 58ecd14900 Implement support for chosing a 32 bit visual (necessary for pseudo-transparency) (Thanks darkraven)
You need to specify the --enable-32bit-visual flag when starting i3. This is
done because everything feels sluggish on my system when using a 32 bit visual
instead of a 24 bit visual. Fast > fancy.
2012-02-15 18:56:07 +00:00
Michael Stapelberg dee7c07ad2 shmlog: store meta information in the buffer itself, store path as X11 atom
This makes i3-dump-log completely independent of a running i3 instance.
2012-01-06 23:40:07 +00:00
Fernando Tarlá Cardoso Lemos 0e6d1909b8 Handle the case where there's no font char infos.
Fixes i3bar crash with some fonts (and possible i3 crash too).
Thanks to xeen for reporting the issue.
2011-11-27 19:58:06 +00:00