RButtGrp.st
author claus
Fri, 16 Jul 1993 11:44:44 +0200
changeset 0 e6a541c1c0eb
child 3 9d7eefb5e69f
permissions -rw-r--r--
Initial revision
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
     1
"
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
     2
 COPYRIGHT (c) 1991 by Claus Gittinger
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
     3
              All Rights Reserved
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
     4
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
     5
 This software is furnished under a license and may be used
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
     6
 only in accordance with the terms of that license and with the
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
     7
 inclusion of the above copyright notice.   This software may not
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
     8
 be provided or otherwise made available to, or used by, any
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
     9
 other person.  No title to or ownership of the software is
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    10
 hereby transferred.
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    11
"
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    12
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    13
VariableArray subclass:#RadioButtonGroup
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    14
	 instanceVariableNames:'buttonGroup'
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    15
	 classVariableNames:''
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    16
	 poolDictionaries:''
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    17
	 category:'Views-Support'
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    18
!
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    19
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    20
RadioButtonGroup comment:'
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    21
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    22
COPYRIGHT (c) 1991 by Claus Gittinger
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    23
              All Rights Reserved
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    24
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    25
RadioButtonGroups controll the interaction between RadioButtons
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    26
turning off other button(s) when one of the group is pressed.
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    27
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    28
@(#)RButtGrp.st	3.1 92/08/23
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    29
written nov 91 by claus
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    30
'!
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    31
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    32
!RadioButtonGroup methodsFor:'adding / removing'!
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    33
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    34
add:aRadioButton
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    35
    super add:aRadioButton.
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    36
    aRadioButton addDependent:self
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    37
! !
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    38
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    39
!RadioButtonGroup methodsFor:'update'!
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    40
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    41
update:changedButton
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    42
    "a RadioButton in this group has changed - notify the others"
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    43
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    44
    self do:[:aButton |
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    45
        (aButton == changedButton) ifFalse:[
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    46
            aButton isOn ifTrue:[
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    47
                aButton turnOff
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    48
            ]
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    49
        ]
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    50
    ]
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    51
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    52
! !
e6a541c1c0eb Initial revision
claus
parents:
diff changeset
    53