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add -p option for print mode.

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This mode only prints the current screen parameters and exits.
Useful for quick lookup of this value for use in scripts.
This commit is contained in:
Vincent Breitmoser
2011-11-27 17:17:16 +01:00
parent 6735eb0da3
commit 4bae608c5d
2 changed files with 14 additions and 2 deletions
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redshift.1
+3
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@@ -60,6 +60,9 @@ One shot mode (do not continously adjust color temperature)
\fB\-O\fR TEMP
One shot manual mode (set color temperature)
.TP
\fB\-p\fR
Print mode (only print parameters and exit)
.TP
\fB\-x\fR
Reset mode (remove adjustment from screen)
.TP
src/redshift.c
+11 -2
View File
@@ -226,6 +226,7 @@ static const location_provider_t location_providers[] = {
typedef enum {
PROGRAM_MODE_CONTINUAL,
PROGRAM_MODE_ONE_SHOT,
PROGRAM_MODE_PRINT,
PROGRAM_MODE_RESET,
PROGRAM_MODE_MANUAL
} program_mode_t;
@@ -333,6 +334,7 @@ print_help(const char *program_name)
" -o\t\tOne shot mode (do not continously adjust"
" color temperature)\n"
" -O TEMP\tOne shot manual mode (set color temperature)\n"
" -p\t\tPrint mode (only print parameters and exit)"
" -x\t\tReset mode (remove adjustment from screen)\n"
" -r\t\tDisable temperature transitions\n"
" -t DAY:NIGHT\tColor temperature to set at daytime/night\n"),
@@ -666,7 +668,7 @@ main(int argc, char *argv[])
/* Parse command line arguments. */
int opt;
while ((opt = getopt(argc, argv, "b:c:g:hl:m:oO:rt:vVx")) != -1) {
while ((opt = getopt(argc, argv, "b:c:g:hl:m:oO:prt:vVx")) != -1) {
switch (opt) {
case 'b':
parse_brightness_string(optarg, &brightness_day, &brightness_night);
@@ -771,6 +773,9 @@ main(int argc, char *argv[])
mode = PROGRAM_MODE_MANUAL;
temp_set = atoi(optarg);
break;
case 'p':
mode = PROGRAM_MODE_PRINT;
break;
case 'r':
transition = 0;
break;
@@ -1082,6 +1087,7 @@ main(int argc, char *argv[])
switch (mode) {
case PROGRAM_MODE_ONE_SHOT:
case PROGRAM_MODE_PRINT:
{
/* Current angular elevation of the sun */
double now;
@@ -1105,11 +1111,14 @@ main(int argc, char *argv[])
float brightness = calculate_interpolated_value(elevation,
brightness_day, brightness_night);
if (verbose) {
if (verbose || mode == PROGRAM_MODE_PRINT) {
print_period(elevation);
printf(_("Color temperature: %uK\n"), temp);
printf(_("Brightness: %.2f\n"), brightness);
}
if(mode == PROGRAM_MODE_PRINT) {
exit(EXIT_SUCCESS);
}
/* Adjust temperature */
r = method->set_temperature(&state, temp, brightness, gamma);