Text Input Box with Xlib
Hello! I am new in the list and I'm facing the first difficults in using Xlib. I have been playing around Xlib a little and then I decided to write a small set of widgets to make easier the things. I already got window and button widgets working, and now I would like to write a text input box, but I have no idea how to start. If someone out there have advices, example code, etc etc, I would be very glad. If someone want to see what I've already wrote, it's here: https://github.com/gabrield/stk -- Gabriel Duarte Linux User #471185 Rio de Janeiro / RJ http://genericdev.wordpress.com/ ___ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.x.org/mailman/listinfo/xorg Your subscription address: arch...@mail-archive.com
Re: Text Input Box with Xlib
On 02/ 2/13 01:56 PM, Gabriel Duarte wrote: I already got window and button widgets working, and now I would like to write a text input box, but I have no idea how to start. If someone out there have advices, example code, etc etc, I would be very glad. The best advice we can give you is to use an existing toolkit. Correctly handling all the different languages, writing systems, accessibility helpers, etc. is a multi-year project to write, debug, and make useful, and one that people have already done for you. -- -Alan Coopersmith- alan.coopersm...@oracle.com Oracle Solaris Engineering - http://blogs.oracle.com/alanc ___ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.x.org/mailman/listinfo/xorg Your subscription address: arch...@mail-archive.com
Re: Text Input Box with Xlib
At Sat, 02 Feb 2013 14:02:04 -0800 Alan Coopersmith
alan.coopersm...@oracle.com wrote:
On 02/ 2/13 01:56 PM, Gabriel Duarte wrote:
I already got window and button widgets working, and now I would like
to write a text input box, but I have no idea how to start. If someone out
there have advices, example code, etc etc, I would be very glad.
The best advice we can give you is to use an existing toolkit.
Correctly handling all the different languages, writing systems,
accessibility helpers, etc. is a multi-year project to write, debug,
and make useful, and one that people have already done for you.
And if you are too impatient for that, just use Tcl/Tk. Tcl is a basic
scripting language that comes with a basic GUI toolkit. One that you
can play with *interactively*. Once you have Tcl/Tk installed (under
Linux it is just a matter of
# Red Hat flavored (RHEL, CentOS, Scientific Linux, Fedora)
yum install tcl tk
# Debian flavored (Debian, Ubuntu, Mint, etc.)
apt-get install tcl tk
), you can do this ('%'=shell prompt):
% wish
pack [entry .e]
and presto, a text input box.
A slightly more exciting example:
% wish
pack [entry .e] -side left
pack [buttom .b \
-text Hit me \
-command {puts You entered: '[.e cget -text]'}] -side right
The packages *should* come with man pages. Also: visit
http://wiki.tcl.tk/ for lots of fun stuff.
--
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Deepwoods Software-- http://www.deepsoft.com/
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[PATCH 1/8 v2] Handle failure to create counter in init_system_idle_counter
Check for NULL pointer (which can be returned for multiple reasons)
before trying to dereference it to add privates. To avoid memory leak
in error path, delay malloc of privates until we're ready to add them.
In case we do return NULL up through SyncInitDeviceIdleTime, handle the
possibility of getting NULL passed back down to SyncRemoveDeviceIdleTime.
As reported by parfait 1.1:
Error: Null pointer dereference (CWE 476)
Read from null pointer 'idle_time_counter'
at line 2764 of xserver/Xext/sync.c in function
'init_system_idle_counter'.
Function 'SyncCreateSystemCounter' may return constant 'NULL' at line
952, called at line 2756.
Null pointer introduced at line 952 in function
'SyncCreateSystemCounter'.
Signed-off-by: Alan Coopersmith alan.coopersm...@oracle.com
Reviewed-by: Peter Hutterer peter.hutte...@who-t.net
---
Xext/sync.c | 13 -
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/Xext/sync.c b/Xext/sync.c
index 4d11992..9ae5b39 100644
--- a/Xext/sync.c
+++ b/Xext/sync.c
@@ -2747,7 +2747,6 @@ init_system_idle_counter(const char *name, int deviceid)
{
CARD64 resolution;
XSyncValue idle;
-IdleCounterPriv *priv = malloc(sizeof(IdleCounterPriv));
SyncCounter *idle_time_counter;
IdleTimeQueryValue(NULL, idle);
@@ -2758,10 +2757,14 @@ init_system_idle_counter(const char *name, int deviceid)
IdleTimeQueryValue,
IdleTimeBracketValues);
-priv-deviceid = deviceid;
-priv-value_less = priv-value_greater = NULL;
+if (idle_time_counter != NULL) {
+IdleCounterPriv *priv = malloc(sizeof(IdleCounterPriv));
-idle_time_counter-pSysCounterInfo-private = priv;
+priv-value_less = priv-value_greater = NULL;
+priv-deviceid = deviceid;
+
+idle_time_counter-pSysCounterInfo-private = priv;
+}
return idle_time_counter;
}
@@ -2786,6 +2789,6 @@ void SyncRemoveDeviceIdleTime(SyncCounter *counter)
/* FreeAllResources() frees all system counters before the devices are
shut down, check if there are any left before freeing the device's
counter */
-if (!xorg_list_is_empty(SysCounterList))
+if (counter !xorg_list_is_empty(SysCounterList))
xorg_list_del(counter-pSysCounterInfo-entry);
}
--
1.7.9.2
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[Bug 60180] R200 segfault at startx
https://bugs.freedesktop.org/show_bug.cgi?id=60180 --- Comment #1 from Alex Deucher ag...@yahoo.com --- Can you install the debugging packages and get a proper backtrace with gdb: http://wiki.x.org/wiki/Development/Documentation/ServerDebugging Also please attach your full xorg log and dmesg output. -- You are receiving this mail because: You are the assignee for the bug. ___ xorg-driver-ati mailing list xorg-driver-ati@lists.x.org http://lists.x.org/mailman/listinfo/xorg-driver-ati
[Bug 60180] R200 segfault at startx
https://bugs.freedesktop.org/show_bug.cgi?id=60180 --- Comment #2 from jc.gerv...@videotron.ca --- dmesg: http://gentoo.pastebin.ca/2310183 Xorg -configure run: Xorg.0.log http://gentoo.pastebin.ca/2310182 build log: http://gentoo.pastebin.ca/2310188 -- You are receiving this mail because: You are the assignee for the bug. ___ xorg-driver-ati mailing list xorg-driver-ati@lists.x.org http://lists.x.org/mailman/listinfo/xorg-driver-ati
[Bug 20476] [RV530 x1650] Black screen on X boot
https://bugs.freedesktop.org/show_bug.cgi?id=20476 klondike klond...@klondike.es changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #23 from klondike klond...@klondike.es --- I think this was fixed at some point of time but I forgot to close this bug. Even if it wasn't fixed I don't have access to the hardware anyway. -- You are receiving this mail because: You are the assignee for the bug. ___ xorg-driver-ati mailing list xorg-driver-ati@lists.x.org http://lists.x.org/mailman/listinfo/xorg-driver-ati
[Bug 60180] R200 segfault at startx
https://bugs.freedesktop.org/show_bug.cgi?id=60180
--- Comment #3 from jc.gerv...@videotron.ca ---
gdb /usr/bin/Xorg $(pidof X)
GNU gdb (Gentoo 7.5 p1) 7.5
This GDB was configured as powerpc-unknown-linux-gnu.
Reading symbols from /usr/bin/Xorg...done.
(gdb) set args -configure
(gdb) run
Starting program: /usr/bin/Xorg -configure
warning: Could not load shared library symbols for linux-vdso32.so.1.
Do you need set solib-search-path or set sysroot?
[Thread debugging using libthread_db enabled]
Using host libthread_db library /lib/libthread_db.so.1.
X.Org X Server 1.13.1
Release Date: 2012-12-13
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.2.1-gentoo-r2 ppc Gentoo
Current Operating System: Linux tiny 3.2.1-gentoo-r2 #11 Fri Feb 1 16:18:12 EST
2013 ppc
Kernel command line: root=/dev/hda3 ro
Build Date: 02 February 2013 11:57:27PM
Current version of pixman: 0.28.0
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: /var/log/Xorg.0.log, Time: Sun Feb 3 00:30:23 2013
List of video drivers:
radeon
ati
(++) Using config file: /root/xorg.conf.new
(==) Using system config directory /usr/share/X11/xorg.conf.d
(II) [KMS] Kernel modesetting enabled.
Program received signal SIGSEGV, Segmentation fault.
0x0f9337cc in RADEONPreInit_KMS (pScrn=0x1036b7e8, flags=1) at
/var/tmp/portage/x11-drivers/xf86-video-ati-7.0.0-r1/work/xf86-video-ati-7.0.0/src/radeon_kms.c:784
784
/var/tmp/portage/x11-drivers/xf86-video-ati-7.0.0-r1/work/xf86-video-ati-7.0.0/src/radeon_kms.c:
No such file or directory.
(gdb) bt full
#0 0x0f9337cc in RADEONPreInit_KMS (pScrn=0x1036b7e8, flags=1) at
/var/tmp/portage/x11-drivers/xf86-video-ati-7.0.0-r1/work/xf86-video-ati-7.0.0/src/radeon_kms.c:784
info = 0x1036bc48
pRADEONEnt = 0x1036b650
pPriv = 0x1036b4c0
zeros = {red = 0, green = 0, blue = 0}
tiling = 0
cpp = 0
#1 0x100a90e0 in DoConfigure () at
/var/tmp/portage/x11-base/xorg-server-1.13.1/work/xorg-server-1.13.1/hw/xfree86/common/xf86Configure.c:729
MonitorPtr = 0x0
ScreenPtr = 0x0
i = 0
j = 0
screennum = 1
home = 0xbfadbe3d /root
filename = /root/xorg.conf.new, '\000' repeats 553 times\277,
\255\232\020\000\000\000\000\017\306\237\364\000\000\000\000\277\255\232\060,
'\000' repeats 15 times,
d\277\255\237\310\017\306\237\364\020\060\021\210\277\255\232P\017\267\034\250\277\255\245h/sys/class/drm\000\364\277\255\232P\277\255\237\300\017\263\312h\000\000\000\000\000\000\000\000\277\255\232p\000\000\000\000\017\377b\254\000\000\000\000\277\255\236\260,
'\000' repeats 12 times\277,
\255\232\240\000\000\000\000\277\255\241h\017\303\303,\277\255\232\260\000\000\000\001\277\255\241x\017\303\303,\000\000\000\000\000\000\000\001\017\306\237\364\277\255\240X\277\255\232\340\017\266\\020\277\255\241h\017\356\372\071\277\255\232\340\277\255\240H\277\255\241x\017\356\372\071\277\255\232\340\277\255\240X\017\306\237\364\277\255\232\340\277\255\240P\017\263\312h\000\000\000\000F\000\002\\373\255,\207\020\065\301\060\017\306\237\364\277\255\233\000\277\255\240p\017\263\314,\005\000\237\364\277\255\241\330\277\255\241h\000\000\000\000\005\000\000\000\277\255\241\350\277\255\241x,
'\000' repeats 15 times,
\277\255\240\330\017\306\237\364\020\060\232\264\277\255\233`\017\267\034\250\277\255\246X\020\060\232\264\277\255\233p\277\255\240\330\277\255\242\020\062Q\320\277\255\233p\277...
addslash = 0x102ff174 /
xf86config = 0x10371e90
vlist = 0x10365768
vl = 0x10365770
dev2screen = 0x1036b6b8
#2 0x100c3114 in InitOutput (pScreenInfo=0x1034f928 screenInfo, argc=2,
argv=0xbfadab14)
at
/var/tmp/portage/x11-base/xorg-server-1.13.1/work/xorg-server-1.13.1/hw/xfree86/common/xf86Init.c:462
i = 0
j = 271831860
k = 0
scr_index = 1208047636
modulelist = 0xfb60910 fopen+40
optionlist = 0x668
screenpix24 = (unknown: 268556996)
pix24 = (unknown: 1208094688)
pix24From = X_DEFAULT
pix24Fail = 0
autoconfig = 0
sigio_blocked = 0
configured_device = 0x0
#3 0x1001e7c4 in main (argc=2, argv=0xbfadab14, envp=0xbfadab20) at
/var/tmp/portage/x11-base/xorg-server-1.13.1/work/xorg-server-1.13.1/dix/main.c:204
i = 256
alwaysCheckForInput = {0, 1}
(gdb)
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