ButtonController.st
author claus
Thu, 16 Feb 1995 17:31:54 +0100
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"
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 COPYRIGHT (c) 1995 by Claus Gittinger
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	      All Rights Reserved
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 This software is furnished under a license and may be used
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 only in accordance with the terms of that license and with the
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 inclusion of the above copyright notice.   This software may not
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 be provided or otherwise made available to, or used by, any
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 other person.  No title to or ownership of the software is
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 hereby transferred.
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Controller subclass:#ButtonController
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	 instanceVariableNames:'enabled pressed active entered triggerOnDown autoRepeat
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		repeatBlock initialDelay repeatDelay
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		pressActionBlock releaseActionBlock'
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	 classVariableNames:''
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	 poolDictionaries:''
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	 category:'Interface-Support'
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!
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!ButtonController class methodsFor:'documentation'!
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copyright
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"
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 COPYRIGHT (c) 1995 by Claus Gittinger
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	      All Rights Reserved
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 This software is furnished under a license and may be used
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 only in accordance with the terms of that license and with the
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 inclusion of the above copyright notice.   This software may not
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 be provided or otherwise made available to, or used by, any
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 other person.  No title to or ownership of the software is
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 hereby transferred.
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"
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!
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version
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$Header: /cvs/stx/stx/libwidg/ButtonController.st,v 1.2 1995-02-16 16:31:37 claus Exp $
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!
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documentation
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"
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    ButtonControllers are used with buttons and handle all user interaction.
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    These are automatically created when a Button is created, therefore no manual
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    action is required for creation.
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    Instance variables:
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      enabled                 <Boolean>       pressing is allowed (default: true)
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      pressed                 <Boolean>       true if currently pressed (read-only)
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      entered                 <Boolean>       true if the cursor is currently in this view
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      triggerOnDown           <Boolean>       controls if the action should be executed on
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					      press or on release (default: on release).
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      pressActionBlock        <Block>         block to evaluate when pressed (default: noop)
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      releaseActionBlock      <Block>         block to evaluate when released (default: noop)
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      autoRepeat              <Boolean>       auto-repeats when pressed long enough (default: false)
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      initialDelay            <Number>        seconds till first auto-repeat (default: 0.2)
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      repeatDelay             <Number>        seconds of repeat intervall (default: 0.025)
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      repeatBlock             <Block>         block evaluated for auto-repeat (internal)
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      active                  <Boolean>       true during action evaluation (internal)
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!
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examples
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"
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  Although you can specify a lot in a button,
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  use the default in most applications.
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  As you specify more things in your program, 
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  the styleSheet settings are more and more ignored.
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  Also, even though it might look fancy, colorful
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  button panels are usually not a good GUI design;
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  they will attract the users attention - possibly to things
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  which are not worth it.
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  default settings:
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    |top b|
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    top := StandardSystemView new.
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    top extent:100@100.
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    b := Button label:'hello' in:top.
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    b action:[Transcript flash].
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    top open.
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  changing colors:
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    |top b|
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    top := StandardSystemView new.
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    top extent:100@100.
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    b := Button label:'hello' in:top.
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    b action:[Transcript flash].
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    b activeForegroundColor:(Color white).
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    b activeBackgroundColor:(Color red).
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    top open.
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  changing more colors:
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    |top b|
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    top := StandardSystemView new.
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    top extent:100@100.
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    b := Button label:'hello' in:top.
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    b action:[Transcript flash].
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    b enteredForegroundColor:(Color red).
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    b enteredBackgroundColor:(b backgroundColor).
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    b activeForegroundColor:(Color white).
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    b activeBackgroundColor:(Color red).
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    top open.
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  button with an image:
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    |top b|
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    top := StandardSystemView new.
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    top extent:100@100.
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    b := Button in:top.
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    b form:(Image fromFile:'bitmaps/SBrowser.xbm').
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    b action:[Transcript flash].
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    b enteredForegroundColor:(Color green darkened).
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    b enteredBackgroundColor:(b backgroundColor).
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    b activeForegroundColor:(Color white).
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    b activeBackgroundColor:(Color red).
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    top open.
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  changing the image:
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    |top b|
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    top := StandardSystemView new.
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    top extent:100@100.
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    b := Button in:top.
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    b passiveLogo:(Image fromFile:'bitmaps/SBrowser.xbm').
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    b activeLogo:(Image fromFile:'bitmaps/CBrowser.xbm').
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    b action:[Transcript flash].
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    b enteredForegroundColor:(Color red).
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    b enteredBackgroundColor:(b backgroundColor).
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    b activeForegroundColor:(Color white).
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    b activeBackgroundColor:(Color red).
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    top open.
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  well, even that is possible (but you should never do it):
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  (notice the changing size and the resulting problem when
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   pressed near the bottom)
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    |top b|
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    top := StandardSystemView new.
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    top extent:100@100.
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    b := Button in:top.
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    b passiveLogo:(Image fromFile:'bitmaps/SmalltalkX.xbm').
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    b activeLogo:#('start') asStringCollection.
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    b action:[Transcript flash].
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    b enteredForegroundColor:(Color red).
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    b enteredBackgroundColor:(b backgroundColor).
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    b activeForegroundColor:(Color white).
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    b activeBackgroundColor:(Color red).
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    top open.
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  same as above, with frozen size 
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  (make certain, that the size is ok for all possible logos):
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    |top b|
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    top := StandardSystemView new.
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    top extent:100@100.
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    b := Button in:top.
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    b passiveLogo:(Image fromFile:'bitmaps/SmalltalkX.xbm').
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    b activeLogo:#('go') asStringCollection.
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    b action:[Transcript flash].
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    b enteredForegroundColor:(Color red).
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    b enteredBackgroundColor:(b backgroundColor).
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    b activeForegroundColor:(Color white).
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    b activeBackgroundColor:(Color red).
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    b sizeFixed:true.
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    top open.
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  more playing with colors:
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    |top b|
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    top := StandardSystemView new.
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    top extent:100@100.
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    b := Button in:top.
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    b passiveLogo:(Image fromFile:'bitmaps/SmalltalkX.xbm').
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    b action:[Transcript flash].
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    b foregroundColor:(Color red:0 green:80 blue:20) darkened.
2c6ab478466a *** empty log message ***
claus
parents: 76
diff changeset
   206
    b backgroundColor:(Color grey:10).
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claus
parents: 76
diff changeset
   207
    b enteredBackgroundColor:(Color grey:20).
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claus
parents: 76
diff changeset
   208
    b activeForegroundColor:(Color red).
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claus
parents: 76
diff changeset
   209
    b activeBackgroundColor:(Color grey:20).
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claus
parents: 76
diff changeset
   210
    top open.
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claus
parents: 76
diff changeset
   211
2c6ab478466a *** empty log message ***
claus
parents: 76
diff changeset
   212
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claus
parents: 76
diff changeset
   213
  fire on press (buttons in scrollbars do this):
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claus
parents: 76
diff changeset
   214
2c6ab478466a *** empty log message ***
claus
parents: 76
diff changeset
   215
    |top b|
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claus
parents: 76
diff changeset
   216
2c6ab478466a *** empty log message ***
claus
parents: 76
diff changeset
   217
    top := StandardSystemView new.
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claus
parents: 76
diff changeset
   218
    top extent:100@100.
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claus
parents: 76
diff changeset
   219
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claus
parents: 76
diff changeset
   220
    b := Button label:'hello' in:top.
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claus
parents: 76
diff changeset
   221
    b controller beTriggerOnDown.
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claus
parents: 76
diff changeset
   222
    b action:[Transcript flash].
76
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claus
parents:
diff changeset
   223
    top open.
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claus
parents:
diff changeset
   224
"
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claus
parents:
diff changeset
   225
! !
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claus
parents:
diff changeset
   226
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claus
parents:
diff changeset
   227
!ButtonController class methodsFor:'defaults'!
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claus
parents:
diff changeset
   228
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claus
parents:
diff changeset
   229
defaultRepeatDelay
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claus
parents:
diff changeset
   230
    "when autorepeat is enabled, and button is not released,
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claus
parents:
diff changeset
   231
     repeat every repeatDelay seconds"
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claus
parents:
diff changeset
   232
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claus
parents:
diff changeset
   233
    ^ 0.025
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claus
parents:
diff changeset
   234
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claus
parents:
diff changeset
   235
!
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claus
parents:
diff changeset
   236
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claus
parents:
diff changeset
   237
defaultInitialDelay
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claus
parents:
diff changeset
   238
    "when autorepeat is enabled, and button is not released,
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claus
parents:
diff changeset
   239
     start repeating after initialDelay seconds"
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claus
parents:
diff changeset
   240
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claus
parents:
diff changeset
   241
    ^ 0.2
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claus
parents:
diff changeset
   242
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claus
parents:
diff changeset
   243
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claus
parents:
diff changeset
   244
! !
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claus
parents:
diff changeset
   245
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claus
parents:
diff changeset
   246
!ButtonController methodsFor:'initialization'!
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claus
parents:
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   247
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claus
parents:
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   248
initialize
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claus
parents:
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   249
    super initialize.
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claus
parents:
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   250
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claus
parents:
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   251
    enabled := true.
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claus
parents:
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   252
    active := false.
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claus
parents:
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   253
    pressed := false.
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claus
parents:
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   254
    entered := false.
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claus
parents:
diff changeset
   255
    autoRepeat := false.
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claus
parents:
diff changeset
   256
    initialDelay := self class defaultInitialDelay.
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claus
parents:
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   257
    repeatDelay := self class defaultRepeatDelay.
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claus
parents:
diff changeset
   258
    triggerOnDown := false.
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claus
parents:
diff changeset
   259
! !
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claus
parents:
diff changeset
   260
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claus
parents:
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   261
!ButtonController methodsFor:'accessing'!
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claus
parents:
diff changeset
   262
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claus
parents:
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   263
beTriggerOnUp
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claus
parents:
diff changeset
   264
    "make the receiver act on button release"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   265
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claus
parents:
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   266
    triggerOnDown := false
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claus
parents:
diff changeset
   267
!
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claus
parents:
diff changeset
   268
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claus
parents:
diff changeset
   269
beTriggerOnDown
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claus
parents:
diff changeset
   270
    "make the receiver act on button press"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   271
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claus
parents:
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   272
    triggerOnDown := true
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claus
parents:
diff changeset
   273
!
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claus
parents:
diff changeset
   274
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claus
parents:
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   275
triggerOnDown:aBoolean
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claus
parents:
diff changeset
   276
    "set/clear the flag which controls if the action block is to be evaluated
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claus
parents:
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   277
     on press or on release. 
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claus
parents:
diff changeset
   278
     (see also ST-80 compatibility methods beTriggerOn*)"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   279
81e3409404d2 Initial revision
claus
parents:
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   280
    triggerOnDown := aBoolean
81e3409404d2 Initial revision
claus
parents:
diff changeset
   281
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   282
81e3409404d2 Initial revision
claus
parents:
diff changeset
   283
isTriggerOnDown
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claus
parents:
diff changeset
   284
    ^ triggerOnDown
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claus
parents:
diff changeset
   285
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   286
81e3409404d2 Initial revision
claus
parents:
diff changeset
   287
pressAction
81e3409404d2 Initial revision
claus
parents:
diff changeset
   288
    "return the pressAction; thats the block which gets evaluated
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claus
parents:
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   289
     when the button is pressed (if non-nil)"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   290
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claus
parents:
diff changeset
   291
    ^ pressActionBlock
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claus
parents:
diff changeset
   292
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   293
81e3409404d2 Initial revision
claus
parents:
diff changeset
   294
pressAction:aBlock
81e3409404d2 Initial revision
claus
parents:
diff changeset
   295
    "define the action to be performed on press"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   296
81e3409404d2 Initial revision
claus
parents:
diff changeset
   297
    pressActionBlock := aBlock
81e3409404d2 Initial revision
claus
parents:
diff changeset
   298
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   299
81e3409404d2 Initial revision
claus
parents:
diff changeset
   300
releaseAction
81e3409404d2 Initial revision
claus
parents:
diff changeset
   301
    "return the releaseAction; thats the block which gets evaluated
81e3409404d2 Initial revision
claus
parents:
diff changeset
   302
     when the button is relreased (if non-nil)"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   303
81e3409404d2 Initial revision
claus
parents:
diff changeset
   304
    ^ releaseActionBlock
81e3409404d2 Initial revision
claus
parents:
diff changeset
   305
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   306
81e3409404d2 Initial revision
claus
parents:
diff changeset
   307
releaseAction:aBlock
81e3409404d2 Initial revision
claus
parents:
diff changeset
   308
    "define the action to be performed on release"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   309
81e3409404d2 Initial revision
claus
parents:
diff changeset
   310
    releaseActionBlock := aBlock
81e3409404d2 Initial revision
claus
parents:
diff changeset
   311
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   312
81e3409404d2 Initial revision
claus
parents:
diff changeset
   313
action:aBlock
81e3409404d2 Initial revision
claus
parents:
diff changeset
   314
    "convenient method: depending on the setting the triggerOnDown flag,
81e3409404d2 Initial revision
claus
parents:
diff changeset
   315
     either set the press-action clear any release-action or
81e3409404d2 Initial revision
claus
parents:
diff changeset
   316
     vice versa, set the release-action and clear the press-action."
81e3409404d2 Initial revision
claus
parents:
diff changeset
   317
81e3409404d2 Initial revision
claus
parents:
diff changeset
   318
    triggerOnDown ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   319
	releaseActionBlock := nil.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   320
	pressActionBlock := aBlock
81e3409404d2 Initial revision
claus
parents:
diff changeset
   321
    ] ifFalse:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   322
	releaseActionBlock := aBlock.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   323
	pressActionBlock := nil
81e3409404d2 Initial revision
claus
parents:
diff changeset
   324
    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   325
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   326
81e3409404d2 Initial revision
claus
parents:
diff changeset
   327
autoRepeat
81e3409404d2 Initial revision
claus
parents:
diff changeset
   328
    "turn on autorepeat"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   329
81e3409404d2 Initial revision
claus
parents:
diff changeset
   330
    autoRepeat := true.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   331
    repeatBlock := [self repeat]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   332
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   333
81e3409404d2 Initial revision
claus
parents:
diff changeset
   334
disable
81e3409404d2 Initial revision
claus
parents:
diff changeset
   335
    "disable the button"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   336
81e3409404d2 Initial revision
claus
parents:
diff changeset
   337
    enabled ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   338
	enabled := false.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   339
	view redraw
81e3409404d2 Initial revision
claus
parents:
diff changeset
   340
    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   341
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   342
81e3409404d2 Initial revision
claus
parents:
diff changeset
   343
enable
81e3409404d2 Initial revision
claus
parents:
diff changeset
   344
    "enable the button"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   345
81e3409404d2 Initial revision
claus
parents:
diff changeset
   346
    enabled ifFalse:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   347
	enabled := true.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   348
	view redraw
81e3409404d2 Initial revision
claus
parents:
diff changeset
   349
    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   350
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   351
81e3409404d2 Initial revision
claus
parents:
diff changeset
   352
enabled
81e3409404d2 Initial revision
claus
parents:
diff changeset
   353
    ^ enabled
81e3409404d2 Initial revision
claus
parents:
diff changeset
   354
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   355
81e3409404d2 Initial revision
claus
parents:
diff changeset
   356
active
81e3409404d2 Initial revision
claus
parents:
diff changeset
   357
    ^ active
81e3409404d2 Initial revision
claus
parents:
diff changeset
   358
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   359
81e3409404d2 Initial revision
claus
parents:
diff changeset
   360
pressed
81e3409404d2 Initial revision
claus
parents:
diff changeset
   361
    ^ pressed
81e3409404d2 Initial revision
claus
parents:
diff changeset
   362
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   363
81e3409404d2 Initial revision
claus
parents:
diff changeset
   364
entered
81e3409404d2 Initial revision
claus
parents:
diff changeset
   365
    ^ entered
81e3409404d2 Initial revision
claus
parents:
diff changeset
   366
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   367
81e3409404d2 Initial revision
claus
parents:
diff changeset
   368
entered:aBoolean
81e3409404d2 Initial revision
claus
parents:
diff changeset
   369
    entered := aBoolean
81e3409404d2 Initial revision
claus
parents:
diff changeset
   370
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   371
81e3409404d2 Initial revision
claus
parents:
diff changeset
   372
pressed:aBoolean
81e3409404d2 Initial revision
claus
parents:
diff changeset
   373
    pressed := aBoolean
81e3409404d2 Initial revision
claus
parents:
diff changeset
   374
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   375
81e3409404d2 Initial revision
claus
parents:
diff changeset
   376
active:aBoolean
81e3409404d2 Initial revision
claus
parents:
diff changeset
   377
    active := aBoolean
81e3409404d2 Initial revision
claus
parents:
diff changeset
   378
! !
81e3409404d2 Initial revision
claus
parents:
diff changeset
   379
81e3409404d2 Initial revision
claus
parents:
diff changeset
   380
!ButtonController methodsFor:'event handling'!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   381
81e3409404d2 Initial revision
claus
parents:
diff changeset
   382
buttonPress:button x:x y:y
81e3409404d2 Initial revision
claus
parents:
diff changeset
   383
    |sym|
81e3409404d2 Initial revision
claus
parents:
diff changeset
   384
81e3409404d2 Initial revision
claus
parents:
diff changeset
   385
    (button == 1 or:[button == #select]) ifFalse:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   386
	^ super buttonPress:button x:x y:y
81e3409404d2 Initial revision
claus
parents:
diff changeset
   387
    ].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   388
81e3409404d2 Initial revision
claus
parents:
diff changeset
   389
    pressed ifFalse:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   390
	enabled ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   391
	    pressed := true.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   392
	    view showActive.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   393
81e3409404d2 Initial revision
claus
parents:
diff changeset
   394
	    (pressActionBlock notNil or:[model notNil]) ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   395
		"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   396
		 force output - so that button is drawn correctly in case
81e3409404d2 Initial revision
claus
parents:
diff changeset
   397
		 of any long-computation (at high priority)
81e3409404d2 Initial revision
claus
parents:
diff changeset
   398
		"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   399
		view device synchronizeOutput.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   400
	    ].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   401
81e3409404d2 Initial revision
claus
parents:
diff changeset
   402
	    active := true.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   403
81e3409404d2 Initial revision
claus
parents:
diff changeset
   404
	    pressActionBlock notNil ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   405
		pressActionBlock value
81e3409404d2 Initial revision
claus
parents:
diff changeset
   406
	    ].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   407
81e3409404d2 Initial revision
claus
parents:
diff changeset
   408
	    triggerOnDown ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   409
		"the ST-80 way of doing things"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   410
		(model notNil and:[(sym := view changeSymbol) notNil]) ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   411
		    model perform:sym
81e3409404d2 Initial revision
claus
parents:
diff changeset
   412
		].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   413
	    ].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   414
81e3409404d2 Initial revision
claus
parents:
diff changeset
   415
	    active := false.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   416
81e3409404d2 Initial revision
claus
parents:
diff changeset
   417
	    autoRepeat ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   418
		Processor addTimedBlock:repeatBlock afterSeconds:initialDelay
81e3409404d2 Initial revision
claus
parents:
diff changeset
   419
	    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   420
	]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   421
    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   422
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   423
81e3409404d2 Initial revision
claus
parents:
diff changeset
   424
buttonRelease:button x:x y:y
81e3409404d2 Initial revision
claus
parents:
diff changeset
   425
    "button was released - if enabled, perform releaseaction"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   426
81e3409404d2 Initial revision
claus
parents:
diff changeset
   427
    |sym|
81e3409404d2 Initial revision
claus
parents:
diff changeset
   428
81e3409404d2 Initial revision
claus
parents:
diff changeset
   429
    (button == 1 or:[button == #select]) ifFalse:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   430
	^ super buttonRelease:button x:x y:y
81e3409404d2 Initial revision
claus
parents:
diff changeset
   431
    ].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   432
    pressed ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   433
	autoRepeat ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   434
	    Processor removeTimedBlock:repeatBlock
81e3409404d2 Initial revision
claus
parents:
diff changeset
   435
	].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   436
	pressed := false.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   437
	view showPassive.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   438
81e3409404d2 Initial revision
claus
parents:
diff changeset
   439
	enabled ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   440
	    "
81e3409404d2 Initial revision
claus
parents:
diff changeset
   441
	     only perform action if released within myself
81e3409404d2 Initial revision
claus
parents:
diff changeset
   442
	    "
81e3409404d2 Initial revision
claus
parents:
diff changeset
   443
	    ((x >= 0) 
81e3409404d2 Initial revision
claus
parents:
diff changeset
   444
	    and:[x <= view width
81e3409404d2 Initial revision
claus
parents:
diff changeset
   445
	    and:[y >= 0
81e3409404d2 Initial revision
claus
parents:
diff changeset
   446
	    and:[y <= view height]]]) ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   447
		(releaseActionBlock notNil or:[model notNil]) ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   448
		    "
81e3409404d2 Initial revision
claus
parents:
diff changeset
   449
		     force output - so that button is drawn correctly in case
81e3409404d2 Initial revision
claus
parents:
diff changeset
   450
		     of any long-computation (at high priority)
81e3409404d2 Initial revision
claus
parents:
diff changeset
   451
		    "
81e3409404d2 Initial revision
claus
parents:
diff changeset
   452
		    view device synchronizeOutput.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   453
		].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   454
81e3409404d2 Initial revision
claus
parents:
diff changeset
   455
		active := true.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   456
81e3409404d2 Initial revision
claus
parents:
diff changeset
   457
		releaseActionBlock notNil ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   458
		    releaseActionBlock value
81e3409404d2 Initial revision
claus
parents:
diff changeset
   459
		].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   460
		triggerOnDown ifFalse:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   461
		    "the ST-80 way of doing things"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   462
		    (model notNil and:[(sym := view changeSymbol) notNil]) ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   463
			model perform:sym 
81e3409404d2 Initial revision
claus
parents:
diff changeset
   464
		    ].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   465
		].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   466
81e3409404d2 Initial revision
claus
parents:
diff changeset
   467
		active := false.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   468
81e3409404d2 Initial revision
claus
parents:
diff changeset
   469
		view redraw.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   470
	    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   471
	]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   472
    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   473
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   474
81e3409404d2 Initial revision
claus
parents:
diff changeset
   475
pointerEnter:state x:x y:y
81e3409404d2 Initial revision
claus
parents:
diff changeset
   476
    "redraw with enteredColors if they differ from the normal colors"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   477
81e3409404d2 Initial revision
claus
parents:
diff changeset
   478
    entered := true.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   479
    pressed ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   480
	"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   481
	 reentered after a leave with mouse-button down;
81e3409404d2 Initial revision
claus
parents:
diff changeset
   482
	 restart autorepeating and/or if I am a button with
81e3409404d2 Initial revision
claus
parents:
diff changeset
   483
	 triggerOnDown, show active again.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   484
	"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   485
	enabled ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   486
	    autoRepeat ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   487
		Processor addTimedBlock:repeatBlock afterSeconds:initialDelay
81e3409404d2 Initial revision
claus
parents:
diff changeset
   488
	    ].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   489
	    triggerOnDown ifFalse:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   490
		view showActive.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   491
	    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   492
	]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   493
    ] ifFalse:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   494
	enabled ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   495
	    view redraw
81e3409404d2 Initial revision
claus
parents:
diff changeset
   496
	]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   497
    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   498
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   499
81e3409404d2 Initial revision
claus
parents:
diff changeset
   500
repeat
81e3409404d2 Initial revision
claus
parents:
diff changeset
   501
    "this is sent from the autorepeat-block, when the button has been pressed long
81e3409404d2 Initial revision
claus
parents:
diff changeset
   502
     enough; it simulates a release-press, by evaluating both release
81e3409404d2 Initial revision
claus
parents:
diff changeset
   503
     and press actions."
81e3409404d2 Initial revision
claus
parents:
diff changeset
   504
81e3409404d2 Initial revision
claus
parents:
diff changeset
   505
    pressed ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   506
	enabled ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   507
	    active ifFalse:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   508
		active := true.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   509
		releaseActionBlock notNil ifTrue:[releaseActionBlock value].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   510
		pressActionBlock notNil ifTrue:[pressActionBlock value].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   511
		active := false.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   512
81e3409404d2 Initial revision
claus
parents:
diff changeset
   513
		autoRepeat ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   514
		    Processor addTimedBlock:repeatBlock afterSeconds:repeatDelay
81e3409404d2 Initial revision
claus
parents:
diff changeset
   515
		]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   516
	    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   517
	]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   518
    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   519
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   520
81e3409404d2 Initial revision
claus
parents:
diff changeset
   521
buttonMultiPress:button x:x y:y
81e3409404d2 Initial revision
claus
parents:
diff changeset
   522
    ^ self buttonPress:button x:x y:y
81e3409404d2 Initial revision
claus
parents:
diff changeset
   523
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   524
81e3409404d2 Initial revision
claus
parents:
diff changeset
   525
keyPress:key x:x y:y
81e3409404d2 Initial revision
claus
parents:
diff changeset
   526
    "only trigger, if I am the focusView of my group"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   527
81e3409404d2 Initial revision
claus
parents:
diff changeset
   528
    |group|
81e3409404d2 Initial revision
claus
parents:
diff changeset
   529
81e3409404d2 Initial revision
claus
parents:
diff changeset
   530
    ((group := view windowGroup) notNil 
81e3409404d2 Initial revision
claus
parents:
diff changeset
   531
    and:[group focusView == view]) ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   532
	(key == #Return or:[key == Character space]) ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   533
	    "just simulate a buttonPress/release here."
81e3409404d2 Initial revision
claus
parents:
diff changeset
   534
	    self buttonPress:1 x:0 y:0.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   535
	    self buttonRelease:1 x:0 y:0.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   536
	    ^ self.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   537
	]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   538
    ].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   539
    view keyPress:key x:x y:y
81e3409404d2 Initial revision
claus
parents:
diff changeset
   540
!
81e3409404d2 Initial revision
claus
parents:
diff changeset
   541
81e3409404d2 Initial revision
claus
parents:
diff changeset
   542
pointerLeave:state
81e3409404d2 Initial revision
claus
parents:
diff changeset
   543
    "redraw with normal colors if they differ from enteredColors"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   544
81e3409404d2 Initial revision
claus
parents:
diff changeset
   545
    entered := false.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   546
    pressed ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   547
	"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   548
	 leave with mouse-button down;
81e3409404d2 Initial revision
claus
parents:
diff changeset
   549
	 stop autorepeating and/or if I am a button with
81e3409404d2 Initial revision
claus
parents:
diff changeset
   550
	 action on release, show passive
81e3409404d2 Initial revision
claus
parents:
diff changeset
   551
	"
81e3409404d2 Initial revision
claus
parents:
diff changeset
   552
	autoRepeat ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   553
	    Processor removeTimedBlock:repeatBlock
81e3409404d2 Initial revision
claus
parents:
diff changeset
   554
	].
81e3409404d2 Initial revision
claus
parents:
diff changeset
   555
	triggerOnDown ifFalse:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   556
	    view showPassive.
81e3409404d2 Initial revision
claus
parents:
diff changeset
   557
	]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   558
    ] ifFalse:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   559
	enabled ifTrue:[
81e3409404d2 Initial revision
claus
parents:
diff changeset
   560
	    view redraw
81e3409404d2 Initial revision
claus
parents:
diff changeset
   561
	]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   562
    ]
81e3409404d2 Initial revision
claus
parents:
diff changeset
   563
! !
81e3409404d2 Initial revision
claus
parents:
diff changeset
   564