WindowEvent.st
author Claus Gittinger <cg@exept.de>
Tue, 10 Jan 2006 12:48:12 +0100
changeset 4456 f44dc25bf77b
parent 4233 088575f01a8a
child 4458 9289b34fcea3
permissions -rw-r--r--
drop

"
 COPYRIGHT (c) 1993 by Claus Gittinger
	      All Rights Reserved

 This software is furnished under a license and may be used
 only in accordance with the terms of that license and with the
 inclusion of the above copyright notice.   This software may not
 be provided or otherwise made available to, or used by, any
 other person.  No title to or ownership of the software is
 hereby transferred.
"

"{ Package: 'stx:libview' }"

MessageSend subclass:#WindowEvent
	instanceVariableNames:'delegatedFrom consumed timeStamp'
	classVariableNames:''
	poolDictionaries:''
	category:'Interface-Support'
!

WindowEvent subclass:#ApplicationEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent subclass:#InputEvent
	instanceVariableNames:'modifierFlags'
	classVariableNames:'F_CTRL F_ALT F_META F_SHIFT F_BUTTON1 F_BUTTON2 F_BUTTON3'
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::InputEvent subclass:#ButtonEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::ButtonEvent subclass:#ButtonPressEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::ButtonPressEvent subclass:#ButtonMultiPressEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::ButtonEvent subclass:#ButtonReleaseEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent subclass:#ClientEvent
	instanceVariableNames:'eventData'
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent subclass:#ConfigureEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent subclass:#DamageEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::InputEvent subclass:#DropEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::InputEvent subclass:#EnterLeaveEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::InputEvent subclass:#FocusEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::ButtonEvent subclass:#ButtonMotionEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::InputEvent subclass:#KeyboardEvent
	instanceVariableNames:'rawKey'
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::KeyboardEvent subclass:#KeyReleaseEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::KeyboardEvent subclass:#KeyPressEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::InputEvent subclass:#KeyboardFocusEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent subclass:#MessageSendEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::InputEvent subclass:#NativeWidgetCommandEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent subclass:#NewDamageEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent subclass:#SelectionEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent::SelectionEvent subclass:#SelectionClearEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent subclass:#TerminateEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

WindowEvent subclass:#WindowMapUnmapEvent
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	privateIn:WindowEvent
!

!WindowEvent class methodsFor:'documentation'!

copyright
"
 COPYRIGHT (c) 1993 by Claus Gittinger
	      All Rights Reserved

 This software is furnished under a license and may be used
 only in accordance with the terms of that license and with the
 inclusion of the above copyright notice.   This software may not
 be provided or otherwise made available to, or used by, any
 other person.  No title to or ownership of the software is
 hereby transferred.
"
!

documentation
"
    Instances of WindowEvent are created for every event coming from
    the graphics device. 
    Usually, they are enqueued by the event dispatcher process into
    a sensors input queue, and dequeued & processed by a windowGroup process
    in its event loop.

    WindowEvents hold the event type and additional information (such as key,
    x/y coordinates etc). Also, windowEvents know how to send themself to some
    destination. To provide a common (single) place where event dispatching is
    implemented, this forwarding is done by a class method here (i.e. not by the
    window group itself).

    The algorithm for event dispatching is:

	- if the destination view has a keyboard focus set,
	  AND the event is a keyboard event,
	  THEN recursively invoke the event dispatching method,
	       sending the event to the focus view (or its delegate, as below)

	- if the destination view has a delegate,
	  AND its a keyboard, button or pointer event,
	  AND the delegate is interested in that event 
	      (i.e. implements & responds to #handlesXXX with true)
	  THEN send the event to the delegate, passing the original view
	       as additional argument

	- if the view has a nonNil controller,
	  AND its a key, button or pointer event,
	  THEN send the event to the controller

	- otherwise send the event to the view


    If the view has a non-nil transformation, the event is sent as a
    #deviceXXX message, passing device coordinates. Typically, subclasses
    of view do not redefine this method and the inherited default method
    translates these device coordinates into logical coordinates and resends
    an XXX message.
    If the view has no transformation, the XXX message is directly sent here.

    For example, a 'buttonPress:button x:x y:y' event leads to sending of
    'aView deviceButtonPress:button x:x y:y' which resends
    'aView buttonPress:button x:(x-logical) y:(y-logical)'

    This allows views which are interested in deviceCoordinates to get them
    (by redefining #deviceXXX) and other views to transparently get & use
    logical coordinates.

    Therefore, for a delegated keyPress messages, the flow is:

	sendEvent
	    view has delegate
		------> ask delegate via 'handlesKeyPress:key inView:view'
		<------ returns true
		------> 'delegate keyPress:key x:x y:y view:view'
			-----> delegate does whatever it wants to do
			       (typically sends the event to some other view)

    for an undelegated message:

	sendEvent
	    view has delegate
		------> ask delegate via 'handlesKeyPress:key inView:view'
		<------ returns false
	    view has controller
		------> 'controller keyPress:key x:x y:y'
	    view has no controller
		view has transformation
		    ----> 'view deviceKeyPress:key x:x y:y'
			  inverse transform x/y
			  ----> 'self keyPress:key x:xLogical y:yLogical'
		view has no transformation
		    ----> 'view keyPress:key x:x y:y'

    [author:]
	Claus Gittinger

    [see also:]
	WindowGroup WindowSensor
	DeviceWorkstation View
	KeyboardMap KeyboardForwarder EventListener

"
! !

!WindowEvent class methodsFor:'instance creation'!

buttonMotion:buttonState x:x y:y view:aView
    ^ (ButtonMotionEvent new)
          for:aView
          type:#buttonMotion:x:y:
          arguments:(Array with:buttonState with:x with:y)
!

buttonMultiPress:button x:x y:y view:aView
    ^ (ButtonMultiPressEvent new)
          for:aView
          type:#buttonMultiPress:x:y:
          arguments:(Array with:button with:x with:y)
!

buttonPress:button x:x y:y view:aView
    ^ (ButtonPressEvent new)
          for:aView
          type:#buttonPress:x:y:
          arguments:(Array with:button with:x with:y)
!

buttonRelease:button x:x y:y view:aView
    ^ (ButtonReleaseEvent new)
          for:aView
          type:#buttonRelease:x:y:
          arguments:(Array with:button with:x with:y)
!

clientMessageEvent:type format:format eventData:data view:aView
    ^ ClientEvent
         for:aView
         type:#clientMessage:format:eventData:
         arguments:(Array with:type with:format with:data)
!

configureX:x y:y width:w height:h view:aView
    ^ ConfigureEvent
         for:aView
         type:#configureX:y:width:height:
         arguments:(Array with:x with:y with:w with:h)
!

coveredBy:coveringSiblingView view:coveredView
    ^ (WindowEvent basicNew)
        for:coveredView 
        type:#coveredBy:
        arguments:(Array with:coveringSiblingView)
!

damageFor:aView rectangle:aRectangle
    "create and return a new damage Event for aRectangle
     in aView"

    ^ DamageEvent for:aView type:#damage arguments:aRectangle
!

destroyedView:aView
    ^ (self basicNew)
        for:aView 
        type:#destroyed
!

dropFiles:files view:view position:dropPosition
    ^ self dropMessage:#files data:files view:view position:dropPosition
!

dropMessage:dropTypeSymbol data:dropValue view:aView position:position
    ^ DropEvent 
          for:aView
          type:#dropMessage:data:position:
          arguments:(Array with:dropTypeSymbol with:dropValue with:position)
!

focusInView:aView
    ^ FocusEvent 
        for:aView 
        type:#focusIn
!

focusOutView:aView
    ^ FocusEvent 
        for:aView 
        type:#focusOut
!

keyPress:key rawKey:untranslatedKey 
    hasShift:shiftDown ctrl:ctrlDown alt:altDown meta:metaDown
    button1:leftButtonDown button2:middleButtonDown button3:rightButtonDown
    x:x y:y view:aView

    |ev|

    ev := self keyPress:key x:x y:y view:aView.
    ev rawKey:untranslatedKey.
    ev  hasShift:shiftDown ctrl:ctrlDown alt:altDown meta:metaDown
        button1:leftButtonDown button2:middleButtonDown button3:rightButtonDown.
    ^ ev
!

keyPress:key x:x y:y view:aView
    ^ (KeyPressEvent new)
          for:aView
          type:#keyPress:x:y:
          arguments:(Array with:key with:x with:y)
!

keyRelease:key rawKey:untranslatedKey 
    hasShift:shiftDown ctrl:ctrlDown alt:altDown meta:metaDown
    button1:leftButtonDown button2:middleButtonDown button3:rightButtonDown
    x:x y:y view:aView

    |ev|

    ev := self keyRelease:key x:x y:y view:aView.
    ev rawKey:untranslatedKey.
    ev  hasShift:shiftDown ctrl:ctrlDown alt:altDown meta:metaDown
        button1:leftButtonDown button2:middleButtonDown button3:rightButtonDown.
    ^ ev
!

keyRelease:key x:x y:y view:aView
    ^ (KeyReleaseEvent new)
          for:aView
          type:#keyRelease:x:y:
          arguments:(Array with:key with:x with:y)
!

keyboardFocus:arg view:aView

    ^ KeyboardFocusEvent    
            for:aView type:#hasKeyboardFocus: arguments:(Array with:arg).
!

mappedView:aView
    ^ WindowMapUnmapEvent 
        for:aView 
        type:#mapped
!

messageSend:receiver selector:aSelector arguments:arguments
    ^ MessageSendEvent
         for:receiver
         type:aSelector
         arguments:arguments
!

mouseWheelMotion:state x:x y:y amount:amount deltaTime:deltaTime view:aView
    ^ InputEvent
             for:aView
             type:#mouseWheelMotion:x:y:amount:deltaTime:
             arguments:(Array with:state with:x with:y with:amount with:deltaTime).
!

nativeWidgetCommand:command arguments:argVector view:aView
    ^ (NativeWidgetCommandEvent new)
        for:aView 
        type:command
        arguments:argVector
!

newDamageFor:aView
    "create and return a new damage Event for aView"

    ^ NewDamageEvent for:aView type:#newDamage
!

pasteFromClipBoard:something view:aView
    ^ (self basicNew)
        for:aView
        type:#pasteFromClipBoard:
        arguments:(Array with:something).
!

pointerEnter:state x:x y:y view:aView
    ^ EnterLeaveEvent
             for:aView
             type:#pointerEnter:x:y:
             arguments:(Array with:state with:x with:y).
!

pointerLeave:state view:aView
    ^ EnterLeaveEvent
             for:aView
             type:#pointerLeave:
             arguments:(Array with:state).
!

postViewCreateNotification:aView
    ^ (self basicNew) 
        for:aView 
        type:#postCreateView
!

preViewCreateNotification:aView
    ^ (self basicNew) 
        for:aView 
        type:#preCreateView
!

saveAndTerminateView:aView
    ^ (TerminateEvent basicNew)
        for:aView 
        type:#saveAndTerminate
!

terminateView:aView
    ^ (TerminateEvent basicNew)
        for:aView 
        type:#terminate
!

unmappedView:aView
    ^ WindowMapUnmapEvent 
        for:aView 
        type:#unmapped
! !

!WindowEvent class methodsFor:'instance creation basic'!

for:aView type:aSymbol
    "create and return a new windowEvent for sending
     aSymbol-message with no arguments to aView"

    ^ self new for:aView type:aSymbol
!

for:aView type:aSymbol arguments:argArray
    "create and return a new windowEvent for sending
     aSymbol-message with arguments to aView"

    ^ self new for:aView type:aSymbol arguments:argArray
!

new
    self == WindowEvent ifTrue:[
'----------------' errorPrint.
'WindowEvent is abstract - use/add explicit creation message' errorPrintCR.
thisContext fullPrintAll.
    ].
    ^ super new
! !

!WindowEvent methodsFor:'accessing'!

arguments:anArray
    "set the arguments"

    args := anArray
!

consumed
    "return the value of the instance variable 'consumed' (automatically generated)"

    ^ consumed
!

consumed:aBoolean
    "set the value of the instance variable 'consumed' (automatically generated)"

    consumed := aBoolean.
!

delegatedFrom
    "return the value of the instance variable 'delegatedFrom' (automatically generated)"

    ^ delegatedFrom
!

delegatedFrom:something
    "set the value of the instance variable 'delegatedFrom' (automatically generated)"

    delegatedFrom := something.
!

key
    "return the key - nil is returned here.
     This is redefined in KeyboardEvent."

    ^ nil

    "Created: 1.8.1997 / 13:56:21 / cg"
!

rectangle
    "return the damage rectangle"

    ^ args "consider this a kludge"
!

target
    "return the target, for which the event is for"

    ^ receiver
!

target:anObject
    "set the target, for which the event is for"

    receiver := anObject
!

type
    "return the type of the event"

    ^ selector
!

view
    "return the view, for which the event is for"

    ^ receiver
!

view:aView
    "set the view, for which the event is for"

    receiver := aView
!

x
    "the x coordinate - if any.
     nil returned for all but button- and keyEvents"

    ^ nil
!

x:ignoredInteger
    "set the x coordinate - ignored here.
     only for button- and keyEvents"
!

y
    "the y coordinate - if any.
     nil returned for all but button- and keyEvents"

    ^ nil
!

y:ignoredInteger
    "set the y coordinate - ignored here.
     only for button- and keyEvents"
! !

!WindowEvent methodsFor:'dispatching'!

dispatchTo:anObject
    "send this event to anObject"

    ^ anObject perform:selector withArguments:args
!

dispatchWithViewArgumentTo:anObject
    "send this event to anObject, and pass an additional view argument"

    args size = 0 ifTrue:[
        ^ anObject 
            perform:(selector , ':') asSymbol
            with:receiver
    ].

    ^ anObject 
        perform:(selector , 'view:') asSymbol
        withArguments:(args copyWith:receiver)
! !

!WindowEvent methodsFor:'printing & storing'!

displayString
    "return a string for display in inspectors etc."

    ^ self className 
      , '(' , selector storeString 
      , ' view: ' , receiver className 
      , ' args: ' , args displayString
      , ')'

    "Created: 7.3.1996 / 14:55:50 / cg"
    "Modified: 20.9.1997 / 11:42:11 / cg"
! !

!WindowEvent methodsFor:'private-accessing'!

for:aView type:aSymbol
    "set the instance variables of the event"

    receiver :=  aView.
    selector := aSymbol.
    args := #()
!

for:aView type:aSymbol arguments:argArray
    "set the instance variables of the event"

    receiver :=  aView.
    selector := aSymbol.
    args := argArray
! !

!WindowEvent methodsFor:'queries'!

hasAlt
    "return true, if this is a keyboard event, with ALT pressed"

    ^ false

    "Created: 12.4.1997 / 11:04:10 / cg"
!

hasCtrl
    "return true, if this is a keyboard event, with CTRL pressed"

    ^ false

    "Created: 12.4.1997 / 11:04:03 / cg"
!

hasMeta
    "return true, if this is a keyboard event, with META pressed"

    ^ false

    "Created: 12.4.1997 / 11:04:16 / cg"
!

hasShift
    "return true, if this is a keyboard event, with SHIFT pressed"

    ^ false

    "Created: 12.4.1997 / 11:30:59 / cg"
!

isApplicationEvent
    "return true, if this event is application related (i.e. not for a particular view)"

    ^ false
!

isButtonEvent
    "return true, if this event is a button event"

    ^ false
!

isButtonMotionEvent
    "return true, if this event is a buttonMotion event"

    ^ false

    "Created: 5.3.1997 / 12:25:43 / cg"
!

isButtonPressEvent
    "return true, if this event is a buttonPress event"

    ^ false

    "Created: 5.3.1997 / 12:25:43 / cg"
!

isButtonReleaseEvent
    "return true, if this event is a buttonPress event"

    ^ false

    "Created: 5.3.1997 / 12:25:43 / cg"
!

isConfigureEvent
    "return true, if this is a window geometry change event"

    ^ false.
!

isDamage
    "return true, if this is a damage event"

    ^ false.
!

isDamageForView:aView
    "return true, if this is a damage event for a View"

    ^ false.
!

isFocusEvent
    "return true, if this event is a focusIn/focusOut event"

    ^ false

    "Created: 5.3.1997 / 12:12:37 / cg"
!

isFocusInEvent
    "return true, if this event is a focusIn event"

    ^ false

    "Created: 5.3.1997 / 12:18:10 / cg"
!

isInputEvent
    "return true, if this event is an input (pointer, key or button) event"

    ^ false

    "Created: / 21.5.1999 / 19:49:42 / cg"
    "Modified: / 21.5.1999 / 19:50:11 / cg"
!

isKeyEvent
    "return true, if this event is a keyboard event"

    ^ false

    "Modified: / 28.1.1998 / 00:03:17 / cg"
!

isKeyPressEvent
    "return true, if this event is a keyboard press event"

    ^ false

    "Modified: / 28.1.1998 / 00:03:24 / cg"
!

isKeyReleaseEvent
    "return true, if this event is a keyboard release event"

    ^ false

    "Modified: / 28.1.1998 / 00:03:31 / cg"
!

isKeyboardFocusEvent
    "return true, if this event is a keyboard focus event"

    ^ false
!

isMapEvent
    "return true, if this is a map event event"

    ^ false

    "Created: / 29.1.1998 / 21:52:54 / cg"
!

isMessageSendEvent
    "return true, if this event is a general messageSend event"

    ^ false
!

isMouseWheelEvent
    ^ false
!

isPointerEnterEvent
    "return true, if this event is a pointer-enter event"

    ^ false

    "Created: 9.1.1996 / 15:51:24 / cg"
    "Modified: 9.1.1996 / 15:51:40 / cg"
!

isPointerEnterLeaveEvent
    "return true, if this event is a pointer-enter/leave event"

    ^ false

    "Created: 9.1.1996 / 15:51:18 / cg"
!

isPointerLeaveEvent
    "return true, if this event is a pointer-leave event"

    ^ false

    "Created: 9.1.1996 / 15:51:36 / cg"
!

isTerminateEvent
    ^ false
!

isUnmapEvent
    "return true, if this is an unmap event event"

    ^ false

    "Modified: / 29.1.1998 / 21:53:02 / cg"
!

isUserEvent
    "return true, if this event is a user event (i.e. mouse, keyboard or button)"

    self isButtonEvent       ifTrue:[^ true].
    self isKeyEvent          ifTrue:[^ true].
    self isTerminateEvent    ifTrue:[^ true].

    self isPointerEnterEvent ifTrue:[^ true].
    "/ self isPointerLeaveEvent ifTrue:[^ true].     -- why disabled ?

    ^ false

    "Modified: 5.3.1997 / 11:27:40 / cg"
!

targetView
    "return the view which will eventually handle the event;
     for most events, this is the same as the view, for which the event was
     originally generated.
     Except, if an explicit focus has been assigned (i.e. tabbed into a component),
     AND the event is a keyboard event. In this case, the targetView might be different.
     Notice: this method might return nil, for synthetic (app-related) or display screen related
     events"

    |evView group focusView|

    (evView := self view) notNil ifTrue:[
        group := evView windowGroup.
        group notNil ifTrue:[
            focusView := group focusView.
            focusView notNil ifTrue:[^ focusView].
        ].
    ].
    ^ evView
! !

!WindowEvent::ApplicationEvent methodsFor:'blocked'!

view
    ^ nil
! !

!WindowEvent::ApplicationEvent methodsFor:'queries'!

isApplicationEvent
    ^ true
! !

!WindowEvent::InputEvent class methodsFor:'class initialization'!

initialize
    F_SHIFT := 16r001.
    F_CTRL  := 16r002.
    F_ALT   := 16r004.
    F_META  := 16r008.

    F_BUTTON1 := 16r100.
    F_BUTTON2 := 16r200.
    F_BUTTON3 := 16r400.

    "
     self initialize
    "

    "Modified: 13.8.1997 / 22:16:17 / cg"
! !

!WindowEvent::InputEvent methodsFor:'accessing'!

hasShift:shift ctrl:ctrl alt:alt meta:meta button1:b1 button2:b2 button3:b3
    |f "{ Class: SmallInteger }"|

    f := 0.
    shift ifTrue:[f := f bitOr:F_SHIFT].
    ctrl ifTrue:[f := f bitOr:F_CTRL].
    alt ifTrue:[f := f bitOr:F_ALT].
    meta ifTrue:[f := f bitOr:F_META].
    b1 ifTrue:[f := f bitOr:F_BUTTON1].
    b2 ifTrue:[f := f bitOr:F_BUTTON2].
    b3 ifTrue:[f := f bitOr:F_BUTTON3].
    modifierFlags := f.

    "Created: 13.8.1997 / 22:17:56 / cg"
!

hasShift:shift hasCtrl:ctrl hasAlt:alt hasMeta:meta
    |f "{ Class: SmallInteger }"|

    f := 0.
    shift ifTrue:[f := f bitOr:F_SHIFT].
    ctrl ifTrue:[f := f bitOr:F_CTRL].
    alt ifTrue:[f := f bitOr:F_ALT].
    meta ifTrue:[f := f bitOr:F_META].
    modifierFlags := f.

    "Created: 13.8.1997 / 22:02:09 / cg"
!

hasShift:shift hasCtrl:ctrl hasAlt:alt hasMeta:meta hasButton1:b1 hasButton2:b2 hasButton3:b3
    |f "{ Class: SmallInteger }"|

    f := 0.
    shift ifTrue:[f := f bitOr:F_SHIFT].
    ctrl ifTrue:[f := f bitOr:F_CTRL].
    alt ifTrue:[f := f bitOr:F_ALT].
    meta ifTrue:[f := f bitOr:F_META].
    b1 ifTrue:[f := f bitOr:F_BUTTON1].
    b2 ifTrue:[f := f bitOr:F_BUTTON2].
    b3 ifTrue:[f := f bitOr:F_BUTTON3].
    modifierFlags := f.

    "Created: 13.8.1997 / 22:17:25 / cg"
!

modifierFlags
    ^ modifierFlags
!

modifierFlags:flagBits
    modifierFlags := flagBits
! !

!WindowEvent::InputEvent methodsFor:'queries'!

hasAlt
    "return true, if this is an event, with ALT pressed"

    modifierFlags isNil ifTrue:[^ false].
    ^ (modifierFlags bitAnd:F_ALT) ~~ 0

    "Created: 13.8.1997 / 22:02:23 / cg"
    "Modified: 21.8.1997 / 19:41:11 / cg"
!

hasButton1
    "return true, if this is an event, with the left mouse button pressed"

    modifierFlags isNil ifTrue:[^ false].
    ^ (modifierFlags bitAnd:F_BUTTON1) ~~ 0

    "Created: 13.8.1997 / 22:16:35 / cg"
    "Modified: 21.8.1997 / 19:41:40 / cg"
!

hasButton2
    "return true, if this is an event, with the middle mouse button pressed"

    modifierFlags isNil ifTrue:[^ false].
    ^ (modifierFlags bitAnd:F_BUTTON2) ~~ 0

    "Created: 13.8.1997 / 22:16:43 / cg"
    "Modified: 21.8.1997 / 19:41:47 / cg"
!

hasButton3
    "return true, if this is an event, with the right mouse button pressed"

    modifierFlags isNil ifTrue:[^ false].
    ^ (modifierFlags bitAnd:F_BUTTON3) ~~ 0

    "Created: 13.8.1997 / 22:16:49 / cg"
    "Modified: 21.8.1997 / 19:41:52 / cg"
!

hasCtrl
    "return true, if this is an event, with CTRL pressed"

    modifierFlags isNil ifTrue:[^ false].
    ^ (modifierFlags bitAnd:F_CTRL) ~~ 0

    "Created: 13.8.1997 / 22:02:29 / cg"
    "Modified: 21.8.1997 / 19:41:21 / cg"
!

hasMeta
    "return true, if this is an event, with META pressed"

    modifierFlags isNil ifTrue:[^ false].
    ^ (modifierFlags bitAnd:F_META) ~~ 0

    "Created: 13.8.1997 / 22:02:59 / cg"
    "Modified: 21.8.1997 / 19:41:27 / cg"
!

hasShift
    "return true, if this is an event, with SHIFT pressed"

    modifierFlags isNil ifTrue:[^ false].
    ^ (modifierFlags bitAnd:F_SHIFT) ~~ 0

    "Created: 13.8.1997 / 22:03:09 / cg"
    "Modified: 21.8.1997 / 19:41:34 / cg"
!

isInputEvent
    ^ true

    "Created: / 21.5.1999 / 19:49:30 / cg"
!

isMouseWheelEvent
    ^ selector == #mouseWheelMotion:x:y:amount:deltaTime:
! !

!WindowEvent::ButtonEvent methodsFor:'accessing'!

button
    "return the button nr of the button-event"

    ^ args at:1
!

state
    "return the button state of the button-event
     (mouse button bits at the time of the event)."

    ^ args at:1

    "Created: / 12.11.1998 / 16:21:18 / cg"
!

x
    "return the x coordinate of the button-event
     (mouse position at the time of the event)."

    ^ args at:2

    "Created: 1.8.1997 / 13:58:15 / cg"
!

x:anInteger
    "change the x coordinate of the button-event"

    args at:2 put:anInteger

    "Created: 1.8.1997 / 13:58:15 / cg"
!

y
    "return the y coordinate of the button-event
     (mouse position at the time of the event)."

    ^ args at:3

    "Created: 1.8.1997 / 13:58:07 / cg"
!

y:anInteger
    "change the y coordinate of the button-event"

    ^ args at:3 put:anInteger

    "Created: 1.8.1997 / 13:58:15 / cg"
! !

!WindowEvent::ButtonEvent methodsFor:'queries'!

isButtonEvent
    "return true, if this event is a button event"

    ^ true

    "Created: 4.4.1997 / 13:44:11 / cg"
! !

!WindowEvent::ButtonPressEvent methodsFor:'queries'!

isButtonPressEvent
    "return true, if this event is a buttonPress event"

    ^ true
! !

!WindowEvent::ButtonMultiPressEvent methodsFor:'queries'!

isButtonPressEvent
    "/ ATTENTION: temporary for bw. compatibility, since due to a bug,
    "/ multi-presses returned false to this query

"/'----------------' errorPrint.
"/'oops multipressEvent asked for isButtonPress' errorPrintCR.
"/thisContext fullPrintAll.
    ^ false
! !

!WindowEvent::ButtonReleaseEvent methodsFor:'queries'!

isButtonReleaseEvent
    "return true, if this event is a buttonRelease event"

    ^ true
! !

!WindowEvent::ClientEvent methodsFor:'accessing'!

eventData
    "return the value of the instance variable 'eventData' (automatically generated)"

    ^ eventData

    "Created: 4.4.1997 / 17:41:50 / cg"
!

eventData:something
    "set the value of the instance variable 'eventData' (automatically generated)"

    eventData := something.

    "Created: 4.4.1997 / 17:41:57 / cg"
! !

!WindowEvent::ConfigureEvent methodsFor:'queries'!

isConfigureEvent
    ^ true
! !

!WindowEvent::DamageEvent methodsFor:'queries'!

isDamage
    "return true, if this is a damage event"

    ^ true
!

isDamageForView:aView
    "return true, if this is a damage event for aView"

    ^ (receiver == aView)
! !

!WindowEvent::EnterLeaveEvent methodsFor:'queries'!

isPointerEnterEvent
    "return true, if this event is a pointer-enter event"

    ^ (selector == #'pointerEnter:x:y:')

    "Created: 9.1.1996 / 15:51:24 / cg"
    "Modified: 9.1.1996 / 15:51:40 / cg"
!

isPointerEnterLeaveEvent
    "return true, if this event is a pointer-enter/leave event"

    ^ true

    "Created: 9.1.1996 / 15:51:18 / cg"
!

isPointerLeaveEvent
    "return true, if this event is a pointer-leave event"

    ^ selector == #'pointerLeave:'

    "Created: 9.1.1996 / 15:51:36 / cg"
! !

!WindowEvent::FocusEvent methodsFor:'queries'!

isFocusEvent
    "return true, if this event is a focus event"

    ^ true

    "Created: / 21.5.1999 / 19:44:47 / cg"
!

isFocusInEvent
    "return true, if this event is a focusIn event"

    ^ (selector == #focusIn)

    "Created: / 21.5.1999 / 19:45:04 / cg"
! !

!WindowEvent::ButtonMotionEvent methodsFor:'queries'!

isButtonMotionEvent
    "return true, if this event is a buttonMotion event"

    ^ true
! !

!WindowEvent::KeyboardEvent methodsFor:'accessing'!

key
    "return the key of the key-event."

    ^ args at:1

    "Created: 1.8.1997 / 13:55:19 / cg"
!

key:aCharacterOrSymbol
    "change the key of the key-event."

    args at:1 put:aCharacterOrSymbol

    "Created: 1.8.1997 / 13:55:19 / cg"
!

rawKey
    ^ rawKey

    "Created: 4.4.1997 / 13:47:15 / cg"
!

rawKey:aKey
    rawKey := aKey

    "Created: 4.4.1997 / 13:47:10 / cg"
!

x
    "return the x coordinate of the key-event
     (mouse position at the time of the key-event)."

    ^ args at:2

    "Created: 1.8.1997 / 13:57:27 / cg"
!

xy:anInteger
    "change the x coordinate of the key-event"

    ^ args at:2 put:anInteger
!

y
    "return the y coordinate of the key-event
     (mouse position at the time of the key-event)."

    ^ args at:3

    "Created: 1.8.1997 / 13:55:19 / cg"
    "Modified: 1.8.1997 / 13:57:42 / cg"
!

y:anInteger
    "change the y coordinate of the key-event"

    ^ args at:3 put:anInteger
! !

!WindowEvent::KeyboardEvent methodsFor:'queries'!

isKeyEvent
    "return true, if this event is a keyboard event"

    ^ true

    "Created: 4.4.1997 / 13:39:59 / cg"
! !

!WindowEvent::KeyReleaseEvent methodsFor:'queries'!

isKeyReleaseEvent
    "return true, if this event is a keyboard press event"

    ^ true
! !

!WindowEvent::KeyPressEvent methodsFor:'queries'!

isKeyPressEvent
    "return true, if this event is a keyboard press event"

    ^ true
! !

!WindowEvent::KeyboardFocusEvent methodsFor:'queries'!

isKeyboardFocusEvent
    "return true, if this event is a keyboard focus event"

    ^ true
! !

!WindowEvent::MessageSendEvent methodsFor:'blocked'!

view
    ^ nil
! !

!WindowEvent::MessageSendEvent methodsFor:'queries'!

isMessageSendEvent
    "return true, if this event is a general messageSend event"

    ^ true



! !

!WindowEvent::NativeWidgetCommandEvent methodsFor:'accessing'!

command
    ^ selector
!

command:something
    selector := something.
! !

!WindowEvent::NewDamageEvent methodsFor:'queries'!

isDamage
    "return true, if this is a damage event"

    ^ true
!

isDamageForView:aView
    "return true, if this is a damage event for aView"

    ^ (receiver == aView)
! !

!WindowEvent::TerminateEvent methodsFor:'queries'!

isTerminateEvent
    ^ true
! !

!WindowEvent::WindowMapUnmapEvent methodsFor:'queries'!

isMapEvent
    "return true, if this is a map event event"

    ^ selector == #mapped

    "Created: / 29.1.1998 / 21:52:54 / cg"
!

isUnmapEvent
    "return true, if this is an unmap event event"

    ^ selector == #unmapped

    "Modified: / 29.1.1998 / 21:53:02 / cg"
! !

!WindowEvent class methodsFor:'documentation'!

version
    ^ '$Header: /cvs/stx/stx/libview/WindowEvent.st,v 1.82 2006-01-10 11:47:40 cg Exp $'
! !

WindowEvent::InputEvent initialize!