This patch adds the command line switch "--dump" to the xrandr program.
When specified, xrandr outputs the current display configuration in an
easily parsable format similar to the command line options accepted by
xrandr itself. That way, an existing configuration can easily be saved
and restored later.
Signed-off-by: Stefan Tomanek <stefan.toma...@wertarbyte.de>
---
xrandr.c | 55 ++++++++++++++++++++++++++++++++++++++++---------------
xrandr.man | 3 +++
2 files changed, 43 insertions(+), 15 deletions(-)
diff --git a/xrandr.c b/xrandr.c
index 0adf375..c880cb3 100644
--- a/xrandr.c
+++ b/xrandr.c
@@ -140,6 +140,7 @@ usage(void)
fprintf(stderr, " --rmmode <name>\n");
fprintf(stderr, " --addmode <output> <name>\n");
fprintf(stderr, " --delmode <output> <name>\n");
+ fprintf(stderr, " --dump\n");
exit(1);
/*NOTREACHED*/
@@ -2160,6 +2161,7 @@ main (int argc, char **argv)
Bool modeit = False;
Bool propit = False;
Bool query_1 = False;
+ Bool dump = False;
int major, minor;
Bool current = False;
@@ -2251,6 +2253,10 @@ main (int argc, char **argv)
query = True;
continue;
}
+ if (!strcmp ("--dump", argv[i])) {
+ dump = True;
+ continue;
+ }
if (!strcmp ("-o", argv[i]) || !strcmp ("--orientation", argv[i])) {
char *endptr;
if (++i>=argc) usage ();
@@ -2918,11 +2924,13 @@ main (int argc, char **argv)
get_screen (current);
get_crtcs ();
get_outputs ();
-
- printf ("Screen %d: minimum %d x %d, current %d x %d, maximum %d x
%d\n",
+ if (!dump)
+ {
+ printf ("Screen %d: minimum %d x %d, current %d x %d, maximum %d x
%d\n",
screen, minWidth, minHeight,
DisplayWidth (dpy, screen), DisplayHeight(dpy, screen),
maxWidth, maxHeight);
+ }
for (output = outputs; output; output = output->next)
{
@@ -2935,28 +2943,38 @@ main (int argc, char **argv)
Bool *mode_shown;
Rotation rotations = output_rotations (output);
- printf ("%s %s", output_info->name,
connection[output_info->connection]);
+ printf ( dump ? "output %s\n" : "%s %s", output_info->name,
connection[output_info->connection]);
+ if (dump && output_is_primary(output))
+ {
+ printf( "primary\n" );
+ }
+
if (mode)
{
if (crtc_info) {
- printf (" %dx%d+%d+%d",
+ printf ( dump ? "mode %dx%d\npos %dx%d\n" : " %dx%d+%d+%d",
crtc_info->width, crtc_info->height,
crtc_info->x, crtc_info->y);
} else {
- printf (" %dx%d+%d+%d",
- mode->width, mode->height, output->x, output->y);
+ printf ( dump ? "mode %dx%d\npos %dx%d\n" : " %dx%d+%d+%d",
+ mode->width, mode->height, output->x, output->y);
}
- if (verbose)
+ if (verbose && !dump)
printf (" (0x%x)", (int)mode->id);
- if (output->rotation != RR_Rotate_0 || verbose)
+ if (output->rotation != RR_Rotate_0 || verbose || dump)
{
- printf (" %s",
+ printf ( dump ? "rotate %s\n" : " %s",
rotation_name (output->rotation));
if (output->rotation & (RR_Reflect_X|RR_Reflect_Y))
- printf (" %s", reflection_name (output->rotation));
+ printf ( dump ? "reflect %s\n" : " %s", reflection_name
(output->rotation));
+ }
+ } else {
+ if (dump)
+ {
+ printf( "off\n" );
}
}
- if (rotations != RR_Rotate_0 || verbose)
+ if (!dump && (rotations != RR_Rotate_0 || verbose))
{
Bool first = True;
printf (" (");
@@ -2980,7 +2998,7 @@ main (int argc, char **argv)
printf (")");
}
- if (mode)
+ if (!dump && mode)
{
printf (" %dmm x %dmm",
(int)output_info->mm_width,
(int)output_info->mm_height);
@@ -2989,7 +3007,7 @@ main (int argc, char **argv)
if (crtc && crtc->panning_info && crtc->panning_info->width > 0)
{
XRRPanning *pan = crtc->panning_info;
- printf (" panning %dx%d+%d+%d",
+ printf ( dump ? "panning %dx%d+%d+%d" : " panning %dx%d+%d+%d",
pan->width, pan->height, pan->left, pan->top);
if ((pan->track_width != 0 &&
(pan->track_left != pan->left ||
@@ -3001,12 +3019,19 @@ main (int argc, char **argv)
pan->track_height != pan->height ||
pan->border_top != 0 ||
pan->border_bottom != 0)))
- printf (" tracking %dx%d+%d+%d border %d/%d/%d/%d",
+ printf ( dump ? "/%dx%d+%d+%d/%d/%d/%d/%d\n" : "tracking
%dx%d+%d+%d border %d/%d/%d/%d",
pan->track_width, pan->track_height,
pan->track_left, pan->track_top,
pan->border_left, pan->border_top,
pan->border_right, pan->border_bottom);
}
+
+ /* If we are dumping our configuration, we end the loop here */
+ if (dump)
+ {
+ continue;
+ }
+
printf ("\n");
if (verbose)
@@ -3221,7 +3246,7 @@ main (int argc, char **argv)
{
XRRModeInfo *mode = &res->modes[m];
- if (!(mode->modeFlags & ModeShown))
+ if (!(mode->modeFlags & ModeShown) && !dump)
{
printf (" %s (0x%x) %6.1fMHz\n",
mode->name, (int)mode->id,
diff --git a/xrandr.man b/xrandr.man
index 68991d7..e327709 100644
--- a/xrandr.man
+++ b/xrandr.man
@@ -26,6 +26,7 @@ xrandr \- primitive command line interface to RandR extension
.B "xrandr"
[\-help] [\-display \fIdisplay\fP]
[\-q] [\-v]
+[\-\-dump]
[\-\-verbose]
[\-\-dryrun]
[\-\-screen \fIsnum\fP]
@@ -110,6 +111,8 @@ reported while executing the configuration changes.
.IP "\-q, \-\-query"
When this option is present, or when no configuration changes are requested,
xrandr will display the current state of the system.
+.IP "\-\-dump"
+Dump the current display configuration in an easily parsable format.
.IP "\-\-dryrun"
Performs all the actions specified except that no changes are made.
.IP "\-\-nograb"
--
1.7.2.3
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