WPrefs tries to use the fonts listed in the WMCreateFont() call (from WPrefs.c),
font = WMCreateFont(scr, "Lucida Sans,URW Gothic L,Times New Roman,serif"
":bold:pixelsize=26:antialias=true");
and 'font' is later used without accounting the possibility of it being NULL in
WMSetLabelFont(WPrefs.nameL, font);
WMReleaseFont(font);
In particular, WMReleaseFont(font) will kill WPrefs ungracefully with the
following message if font=NULL
WPrefs: wfont.c:193: WMReleaseFont: Assertion `font!=((void *)0)' failed.
Aborted
That happens because the return value of WMCreateFont() can be NULL, so this
patch makes WMCreateFont() never return NULL. If the font creation fails for
some reason (see below), we try to use the emergency DEFAULT_FONT and print
debugging information telling what's going on. If the use of DEFAULT_FONT
also fails, then we terminate WPrefs with exit(1) and let the user know
why exactly if failed.
This bug happened because the font "Lucida Sans" (the first possibility
in the initial call to WMCreateFont()) "exists" in my system as a stale
symbolic link to a location which no longer exists after an upgrade from
java from 1.5.0.14 to 1.5.0.15
/etc/alternatives/LucidaSansDemiBold.ttf ->
/usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/fonts/LucidaSansDemiBold.ttf
So the call to XftFontOpenName(display, scrPtr->screen, fname) with
"Lucida Sans" being the first possibility for Xft to try out ended up in 'font'
being NULL because, as far as the Xft library was concerned, "Lucida Sans"
produced a positive match (due to it existing as a symbolic link) but in the end
a NULL result was produced due to the missing symbolic link destination. This later
exposed the bug of WMCreateFont() returning font=NULL and WPrefs.c not checking
whether font=NULL before using it. Bang!
If "Lucida Sans" was the _second_ entry to try and the first one had suceeded,
this bug would not have surfaced.
This solves https://qa.mandriva.com/show_bug.cgi?id=39677
Signed-off-by: Carlos R. Mafra <crmafra@ift.unesp.br>
This patch removes wmaker from PowerTop's shame list, where
it appeared with ~3-4 wakeups/second.
It adds the linux kernel's dnotify mechanism (adapted from
the example in Documentation/dnotify.txt in the kernel source),
to detect when a configuration file in ~/GNUStep/Defaults has
changed to load it again on-the-fly. For me it usually means that
modifications to ~/GNUStep/Defaults/WMRootMenu via the 'genmenu'
script are automatically detected and loaded.
The use of dnotify makes the ancient behaviour of polling unecessary
and cuts down the wakeups count.
Other 'apparently' useless timers are also deleted and it's been almost
one year now that I use this patched exclusively without problems, so
I am pretty sure that it doesn't hurt to remove them.
The end result of all this is that wmaker generates 0 (zero) wakeups
when idle in a Linux system.
Signed-off-by: Carlos R. Mafra <crmafra@ift.unesp.br>
This also fixed an endless loop that could be entered by the previous code
in certain situations, after the patch to fix navigation/selection in a
textfiled with UTF8 chars was applied.
fix the 2 problems mentioend below:
- Fixed buggy handling of UTF8 characters in textfields in WINGs.
- Fixed segfault in WPrefs when some font description is missing from the
configuration file.
WINGs based applications should now work with both KDE and GNOME
applications (Sylvain Reynal <sreynal@nerim.net>)
- better check for the XDND protocol version when interoperating with other
applications. As it seems xdnd version 3 (which WINGs supports) and newer
are not backward compatible with xdnd version 1 and 2. This is why WINGs
applications cannot interoperate with GNUstep applications (which uses
xdnd version 2). Xdnd version 4 and 5 are backwards compatible with
version 3 though. (Sylvain Reynal <sreynal@nerim.net>)
small integer and causing unexpected color releases that can crash
Window Maker (Martin Frydl <martin.frydl@systinet.com>)
- fixed a small memory leak in WINGs/wview.c caused by not releasing the
background color of a view (Martin Frydl <martin.frydl@systinet.com>)
- Fixed convertfonts to account for $LANG
- Fixed convertfonts logic a bit and no longer output slant and weight if
they are the default ones (medium and roman)
- Applied Pascal's fix for GNUstep menus (modified to also include submenus)
Still this is not the proper fix, as it can't differentiate between
submenus and other windows at the floating window level. Correct fix needs
some extra hints to be set by GNUstep on menus.
This was we internally only deal with fc names and properties. It will
incur a small performance hit as the font needs to be parsed/unparsed,
but this is only for backward-compatibility to support old xlfd names.
People are encouraged to swtich to fontconfig names.
- WINGs no longer adds sans as a fallback for internal fonts. It is
automatically done by fontconfig (if it can't find the requested font
it will use the closest match which is the default font: sans-serif)
- Added code to honor the AntialiasesText global option
- Fixed style names for WMCopyFontWithStyle()
- Added fonts in style files where they were missing. Also changed some
fonts to better defaults.
structures (no longer needed with xft)
- Fixed default system font names (converted from xlfd to fontconfig names)
- A bit of code cleanups related to xft
- Replaced harcoded xlfd font names in wmaker and WPrefs with fontconfig
names.
- Fixed bug in icon chooser dialog that could cause a segmentation fault
in some cases (Pascal Hofstee <caelian@gmail.com>)
- Fixed crash in asm code in wrlib, with new versions of gcc.
- Fixed bug in the x86_PseudoColor_32_to_8() function which incorrectly
used the r, g, b fields in the conversion.
- Fixed x86 ASM code in wrlib to work on 64 bit architectures.
- Fixed the focus flicker seen with some apps (notably gtk2)
(Alexey Spiridonov <snarkmaster@gmail.com>)
- Fixed all crashing bugs that were generated by wmaker starting with the
WMState file missing.
- Added NetWM support (a modified version of the patch originaly written
by Peter Zijlstra <a.p.zijlstra@chello.nl>)
- Applied patch to enhance the Virtual Desktop behaviour, and to integrate
it with the NetWM code (Peter Zijlstra <a.p.zijlstra@chello.nl>)
- Applied a few xinerama and placement fixes (Peter Zijlstra
<a.p.zijlstra@chello.nl>)
- Fixed memory leak in dock code.
- Fixed and enhanced the text wrapping in WINGs.
- Fixed the layout of some elements in WPrefs.app
- Added workaround for aplications that don't set the required hints on the
client leader window, but they set them on normal windows (observer with
KDE 3.3.0 mainly). This will allow these apps to get an appicon again.
(they should be fixed still)
- Added workaround for applications that do not set a command with
XSetCommand(), but instead they set the _NET_WM_PID property. This works
with operating systems that offer a /proc interface similar to what linux
has. (This also is to fix problems with KDE 3.3.0 apps, but not only them).
- Fixed bug with autostart and exit scripts not being executed if user
GNUstep path was different from ~/GNUstep (when setting GNUSTEP_USER_ROOT)
- Added utf8 support in WINGs (removed old X core font code)
- Added utility to convert old font names to new font names in style files
