| Newsgroups: cwi.sgi |
| Subject: Re: new clock |
| Distribution: cwi.sgi |
| References: <2246@charon.cwi.nl> |
| |
| Last week I wrote: |
| |
| >For your enjoyment I have implemented a colorful clock. |
| |
| The clock has now been extended with some new facilities: a menu, an |
| alarm and a gong. These may require some explanation beyond what's in |
| the usage message. |
| |
| Menu |
| ---- |
| The right mouse button now pops up a menu that allows you to turn the |
| seconds hand on or off and to switch the alarm off. |
| |
| Alarm |
| ----- |
| |
| The left and middle buttons set the alarm. When it is on, the alarm |
| time is displayed as a time on a 24 hour clock in the bottom left |
| corner. It is also indicated by two red triangles, corresponding to the |
| little (hours) and big (minutes) hand. These hands can be moved around: |
| the left mouse button moves the minutes hand, the middle button moves |
| the hourds hand. Watch out for differences of twelve hours (always |
| check the digital display); these can be corrected by dragging the hours |
| hand once around the dial. |
| |
| When the alarm goes off, two things happen: a shell command specified on |
| the command line with the -a option is executed (in the background), and |
| the clock's colors change every two seconds, for five minutes. You can |
| also turn the alarm off by using the menu accessible through the right |
| mouse button. |
| |
| There is no default command for the -a option; if it is not specified, |
| only the changing of the colors happens. If you have an 8 ohm speaker |
| connected to the audio output of your Personal Iris, a suitable command |
| would be: |
| |
| mclock -a '/ufs/guido/bin/sgi/play /ufs/guido/lib/sounds/alarm' |
| |
| Gong |
| ---- |
| |
| Some people like a clock that makes noises every hour, or even more |
| often. This is supported by the -g and -G options. With -g you specify |
| a shell command to be executed to sound the gong; with -G you can |
| specify the interval between gong calls, in seconds (default is one hour). |
| The shell command is executed in the background. It is given two |
| arguments: the hours (on a 24 hour clock!) and the minutes. The |
| executable Python script /ufs/guido/bin/sgi/chime is a suitable example. |
| Again, this only works if you have installed a speaker (I bet 8 ohm |
| speakers are going to be in demand!) |
| |
| -- |
| Guido van Rossum, Centre for Mathematics and Computer Science (CWI), Amsterdam |
| guido@cwi.nl or ..!hp4nl!cwi.nl!guido or guido%cwi.nl@uunet.uu.net |
| "A thing of beauty is a joy till sunrise" |