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Text File | 1994-02-28 | 1.9 KB | 52 lines | [TEXT/ttxt] |
- Clock
- Copyright © 1993, 1994 by Apple Computer, Inc. All rights reserved.
- by Maurice Sharp
-
- Welcome to Wiggy Clock!
-
- This is a very simple bit of code that shows a couple of things
- idle scripts
- time formats and fun
-
- All the work is done in the protoStaticText item, so lets take a tour....
-
- •viewBounds
-
- Set them this way to get nice centered justification, also set the height
- dynamically in the viewSetupFormScript()
-
- •viewSetupDoneScript()
-
- This is where I set up the idle task. First I setup an initial string (might as
- well use viewIdleScript(), otherwise I would just end up duplicating code).
-
- Then call the SetupIdle() call and pass it 1000 milliseconds (1 second). This
- says, call my viewIdleScript() in 1 second. (NOTE: pass 0 or NIL to disable the
- idle behavior).
-
- •viewIdleScript
-
- First, a constant used to specify a time specification (really). This is used by
- the TimeStr() function (and also by ShortDateStr() and LongDateStr()). Take a
- look at those manuals, chapter 18...
-
- First I figure out the current seconds. The Time() function returns minutes
- since January 1 1904, TimeInSeconds() returns seconds since January 1 1993 (note
- the different years). So I do a bit of trickery to get the current seconds (well
- not much trickery). And remember, the string needs to always have 2 digits, so
- pad it if needed.
-
- Next, set my text value, simple huh? This SetValue call makes sure the text is
- updated on the display.
-
- Finally, return 1000 milliseconds so that the script will get called the next
- second. Is this easy or what...
-
- DANGER WILL ROBINSON... Remember that idle scripts are potential battery sinks.
- Just leave that sucker going and watch the battery meter drop... I should really
- be doing a minute (60000 millisecond) update to be nice. Then I could just use
- Time(), gosh Batman, it could have been easier, but then this would not be DTS,
- and I would not be....
-
- Dr. What
-