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- "======================================================================
- |
- | Time Method Definitions
- |
- ======================================================================"
-
-
- "======================================================================
- |
- | Copyright (C) 1990, 1991 Free Software Foundation, Inc.
- | Written by Steve Byrne.
- |
- | This file is part of GNU Smalltalk.
- |
- | GNU Smalltalk is free software; you can redistribute it and/or modify it
- | under the terms of the GNU General Public License as published by the Free
- | Software Foundation; either version 1, or (at your option) any later version.
- |
- | GNU Smalltalk is distributed in the hope that it will be useful, but WITHOUT
- | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- | FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
- | details.
- |
- | You should have received a copy of the GNU General Public License along with
- | GNU Smalltalk; see the file COPYING. If not, write to the Free Software
- | Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- |
- ======================================================================"
-
-
- "
- | Change Log
- | ============================================================================
- | Author Date Change
- | sbyrne 24 Apr 90 Fixed printOn: to print the instance time, instead of
- | now, and added printOn: for Time class to print now.
- |
- | sbyrne 19 Sep 89 Changed to use real method categories.
- |
- | sbyrne 12 Aug 89 Implemented many methods. The book is exceptionally
- | vague here, so please feel free to change the
- | behavior to something which is more correct.
- |
- | sbyrne 25 Apr 89 created.
- |
- "
-
- Magnitude subclass: #Time
- instanceVariableNames: 'seconds'
- classVariableNames: ''
- poolDictionaries: ''
- category: nil.
-
- Time comment:
- 'My instances represent times of the day. I provide methods for instance
- creation, methods that access components (hours, minutes, and seconds) of a
- time value, and a block execution timing facility.' !
-
- !Time class methodsFor: 'basic'!
-
- now
- ^self new setSeconds: Time secondClock
- !
-
- fromSeconds: secondCount
- ^self new setSeconds: (Time secondClock \\ (24*60*60)) + secondCount
- !
-
- millisecondClockValue
- ^self millisecondClock
- !
-
- millisecondsToRun: timedBlock
- | startTime|
- startTime _ self millisecondClock.
- timedBlock value.
- ^self millisecondClock - startTime
- !!
-
-
-
- !Time methodsFor: 'accessing'!
-
- hours
- ^(seconds // (60*60)) \\ 24
- !
-
- minutes
- ^(seconds // 60) \\ 60
- !
-
- seconds
- ^seconds \\ 60
- !!
-
-
-
- !Time methodsFor: 'arithmetic'!
-
- addTime: timeAmount
- ^Time new setSeconds: seconds + timeAmount
- !
-
- subtractTime: timeAmount
- ^Time new setSeconds: seconds - timeAmount
- !
-
- printOn: aStream
- self hours printOn: aStream.
- aStream nextPut: $:.
- self minutes < 10 ifTrue: [ aStream nextPut: $0 ].
- self minutes printOn: aStream.
- aStream nextPut: $:.
- self seconds < 10 ifTrue: [ aStream nextPut: $0 ].
- self seconds printOn: aStream
- !!
-
-
-
- !Time methodsFor: 'private'!
-
- setSeconds: secs
- seconds _ secs
- !!
-