Hello FVWM workers -
I've just generated a small patch against fvwm-snap-20010831
to allow "Xinerama" behavior to be emulated correctly on our
HP "SLS" (Single Logical Screen) configurations. What I added
was a way to tell FVWM where the divisions between the monitors
are for cases where there is no Xinerama extension to query.
It is like a fvwm2rc-configurable version of XINERAMA_EMULATION,
(but I don't draw the white lines, and all monitors must be the
same resolution.) I also moved the generation of the FScreen
configuration command for modules into FScreen.c so it is near
the point where it is also decoded.
I should probably test the patch some more, but I'd like to
get your thoughts on the way I did it to see if you agree, or
would rather have it implemented another way. The man page
has been updated to show how two more (optional) parameters
can be added to the Xinerama line to specify how many equal-sized
monitors wide&high the screen which FVWM sees is composed of.
You can test it on a regular screen.
This patch shouldn't break anything since it just adds optional
parameters to the Xinerama command. Please let me know what you
think of it, and thanks for your time!
Be seeing you,
- Sidik
P.S.: Dominik, the previous file I sent you was gzipped. Maybe
something remove the .gz? The final size is 7574 bytes, and
I put a copy at:
http://software.cfht.hawaii.edu/fvwm2-xinerama-sls.patch
and here it is in plain text, since the Welcome message says
patches are appropriate...
diff -ru fvwm-snap-20010831/fvwm/fvwm2.1 fvwm-snap-20010831-sls/fvwm/fvwm2.1
--- fvwm-snap-20010831/fvwm/fvwm2.1 Tue Aug 21 01:30:03 2001
+++ fvwm-snap-20010831-sls/fvwm/fvwm2.1 Mon Sep 3 15:51:13 2001
@@ -6520,7 +6520,7 @@
then the scroll amount is measured in pixels.
.TP
-.BI "Xinerama [ " bool " | " primary-screen " ]"
+.BI "Xinerama [ " bool " | " primary-screen " [ " wide " " high " ] ]"
Enables Xinerama support if the boolean argument is true and
disables it if the argument is false. If instead an integer
argument is given as
@@ -6531,6 +6531,23 @@
as the primary screen's number. Any negative value disables the
primary screen feature. Calling this command without arguments
turns on Xinerama support with the primary screen 0 if it was disabled before
and turns it off if it was enabled.
+
+For multi-screen implementations other than Xinerama, such as
+Single Logical Screen, it is possible to simulate a Xinerama
+configuration if the total screen seen by FVWM is made up of
+equal sized monitors in a rectangular grid. Add two more arguments,
+.IR wide ,
+which must be an integer value dividing evenly into the
+total desktop width, and
+.IR high ,
+which must be an integer value dividing evenly into the
+total desktop height. For an example with two monitors side-by-side
+which appear as one screen through the X-Server, use:
+.EX
+Xinerama 1 2 1
+.EE
+to simulate Xinerama with screen 1 as the primary. These extra
+parameters should not be added if the X-Server supports Xinerama.
.SS COMMANDS FOR USER FUNCTIONS AND SHELL COMMANDS
diff -ru fvwm-snap-20010831/fvwm/modconf.c fvwm-snap-20010831-sls/fvwm/modconf.c
--- fvwm-snap-20010831/fvwm/modconf.c Mon Aug 27 01:30:02 2001
+++ fvwm-snap-20010831-sls/fvwm/modconf.c Mon Sep 3 12:41:08 2001
@@ -220,13 +220,7 @@
static void send_xinerama_state(int modnum)
{
- char msg[100];
- int scr;
-
- scr = (FScreenIsEnabled()) ? FScreenGetPrimaryScreen() : -1;
- sprintf(msg, "%s %d", XINERAMA_CONFIG_STRING, scr);
- SendName(modnum, M_CONFIG_INFO, 0, 0, 0, msg);
-
+ SendName(modnum, M_CONFIG_INFO, 0, 0, 0, FScreenGetConfiguration());
return;
}
diff -ru fvwm-snap-20010831/fvwm/module_interface.c
fvwm-snap-20010831-sls/fvwm/module_interface.c
--- fvwm-snap-20010831/fvwm/module_interface.c Mon Aug 27 01:30:02 2001
+++ fvwm-snap-20010831-sls/fvwm/module_interface.c Mon Sep 3 12:41:55 2001
@@ -1225,13 +1225,7 @@
**/
void broadcast_xinerama_state(void)
{
- char buf[100];
- int scr;
-
- scr = (FScreenIsEnabled()) ? FScreenGetPrimaryScreen() : -1;
- sprintf(buf, "%s %d", XINERAMA_CONFIG_STRING, scr);
- BroadcastConfigInfoString(buf);
-
+ BroadcastConfigInfoString(FScreenGetConfiguration());
return;
}
diff -ru fvwm-snap-20010831/fvwm/virtual.c fvwm-snap-20010831-sls/fvwm/virtual.c
--- fvwm-snap-20010831/fvwm/virtual.c Mon Aug 27 01:30:03 2001
+++ fvwm-snap-20010831-sls/fvwm/virtual.c Mon Sep 3 15:19:53 2001
@@ -337,15 +337,17 @@
void CMD_Xinerama(F_CMD_ARGS)
{
- int val;
+ int n, val[3];
int toggle;
Scr.flags.do_need_window_update = True;
Scr.flags.has_xinerama_state_changed = True;
- if (GetIntegerArguments(action, NULL, &val, 1) == 1)
+ if ((n = GetIntegerArguments(action, NULL, val, 3)) >= 1)
{
+if (n >= 3)
+ FScreenSingleLogicalScreen(val[1], v
