"
COPYRIGHT (c) 1989 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.
"
View subclass:#PullDownMenu
instanceVariableNames:'receiver menus titles selectors activeMenuNumber
showSeparatingLines topMargin fgColor bgColor activeFgColor
activeBgColor onLevel offLevel edgeStyle keepMenu toggleKeep
raiseTopWhenActivated actions'
classVariableNames:'DefaultViewBackground DefaultForegroundColor
DefaultBackgroundColor DefaultHilightForegroundColor
DefaultHilightBackgroundColor DefaultLevel DefaultHilightLevel
DefaultShadowColor DefaultLightColor DefaultEdgeStyle
DefaultKeepMenu DefaultToggleKeep DefaultSeparatingLines'
poolDictionaries:''
category:'Views-Menus'
!
!PullDownMenu class methodsFor:'documentation'!
copyright
"
COPYRIGHT (c) 1989 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
"
PullDown menu provides the top (always visible) part of these menus.
It controls display of its menus, which become visible when one of the
PullDownMenus entries is pressed.
A PullDownMenu itself consists of a single row of labels, which activate
a pulled menu when clicked. Entries may be empty (i.e. have no menu)
and empty entries may (optionally) also perform some action when clicked.
An entries selector is used as the key to define and access submenus
and (for empty entries:) the selector sent to the receiver of the menu.
[Instance variables:]
menus <Collection> the sub menus
titles <Collection> the strings in the menu
selectors <Collection> the selectors to send to the menu-
receiver (for empty pull-menus)
if nil (the default), title entries
do not send anything.
activeMenuNumber <Number> the index of the currently active menu
showSeparatingLines <Boolean> show separating lines between my menu-strings
topMargin <Number> number of pixels at top
fgColor <Color> fg color to draw passive menu-titles
bgColor <Color> bg color to draw passive menu-titles
activeFgColor <Color> fg color to draw activated menu-titles
activeBgColor <Color> bg color to draw activated menu-titles
onLevel <Integer> 3D level of entry-buttons when pressed
offLevel <Integer> 3D level of entry-buttons when released
edgeStyle <Symbol> how to draw edges
keepmenu <Boolean> if on, pulled menu stays on click,
till clicked again (motif & windows behavior)
toggleKeep <Boolean> if on and keepMenu is on,
clicking again on label closes menu
except menus, titles and selectors, instvars are usually defined from
defaults in the styleSheet; you should not care for them.
[StyleSheet values:]
pullDownMenuViewBackground view background Color for the menu bar
default: menuViewBackground
pullDownMenuForegroundColor foreground drawing color for the menu bar
default: menuForegroundColor
pullDownMenuBackgroundColor background drawing color for the menu bar
default: menuBackgroundColor
pullDownMenuHilightForegroundColor active foreground drawing color for the menu bar
default: menuHilightForegroundColor
pullDownMenuHilightBackgroundColor active background drawing color for the menu bar
default: menuHilightBackgroundColor
pullDownMenuHilightLevel level (3D only) when active
default: menuHilightLevel
pullDownMenuEdgeStyle edge style (nil or #soft)
pullDownMenuKeepMenu if true, pulled menu stays open until button
is pressed again outside of the item-area (motif behavior)
if false, menu closes on release (default)
pullDownMenuToggleKeep if true, pulled menu closes when an entry is pressed
again. Otherwise, only press outside of the items area
hides it. default is false
pullDownMenuLevel level (3D only)
pullDownMenuFont font to use for the menu bar
default: menuFont
pullDownMenuShowSeparatingLines if true, lines are drawn between items.
default: false
pullDownMenuRaiseTop if true, topview is raised whenever an entry
is activated.
default: true
[author:]
Claus Gittinger
"
!
examples
"
[exBegin]
|top menu|
top := StandardSystemView new.
top extent:300@300.
menu := PullDownMenu origin:0.0@0.0 corner:1.0@30 in:top.
menu labels:#('foo' 'bar').
menu selectors:#(foo bar).
menu at:#foo
putLabels:#('foo1' 'foo2' 'foo3')
selectors:#(foo1 foo2 foo3)
receiver:nil.
menu at:#bar
putLabels:#('bar1' 'bar2' 'bar3')
selectors:#(bar1 bar2 bar3)
receiver:nil.
top open
empty entries are possible as selectable items (with non-nil seletor) ...
[exEnd]
|top menu|
top := StandardSystemView new.
top extent:300@300.
menu := PullDownMenu origin:0.0@0.0 corner:1.0@30 in:top.
menu labels:#('foo' 'bar' 'baz').
menu selectors:#(foo bar baz).
menu at:#foo
putLabels:#('foo1' 'foo2' 'foo3')
selectors:#(foo1 foo2 foo3)
receiver:nil.
menu at:#baz
putLabels:#('baz1' 'baz2' 'baz3')
selectors:#(baz1 baz2 baz3)
receiver:nil.
top open
... or as separators (with nil selector)
[exBegin]
|top menu|
top := StandardSystemView new.
top extent:500@200.
menu := PullDownMenu origin:0.0@0.0 corner:1.0@30 in:top.
menu labels:#('foo' ' ' 'bar' ' baz' ' ' 'moreFoo' 'moreBar' 'moreBaz').
menu selectors:#(foo nil bar baz nil moreFoo moreBar moreBaz).
menu at:#foo
putLabels:#('foo1' 'foo2' 'foo3')
selectors:#(foo1 foo2 foo3)
receiver:nil.
menu at:#bar
putLabels:#('bar1' 'bar2' 'bar3')
selectors:#(bar1 bar2 bar3)
receiver:nil.
menu at:#baz
putLabels:#('baz1' 'baz2' 'baz3')
selectors:#(baz1 baz2 baz3)
receiver:nil.
top open
use the menus default height
[exEnd]
|top menu|
top := StandardSystemView new.
top extent:300@300.
menu := PullDownMenu in:top.
menu origin:0.0@0.0 corner:1.0@(menu height).
menu labels:#('foo' 'bar').
menu selectors:#(foo bar).
menu at:#foo
putLabels:#('foo1' 'foo2' 'foo3')
selectors:#(foo1 foo2 foo3)
receiver:nil.
top open
although you can change the font, colors etc. (as shown below)
you should NOT do it - since if you do so, the styleSheet settings
are ineffective (which users probably won't like)
BTW: The styleSheet entries for below are pullDownMenuForegroundColor,
pullDownMenuBackgroundColor and pullDownMenuFont
[exBegin]
|top menu|
top := StandardSystemView new.
menu := PullDownMenu in:top.
menu font:(Font family:'courier' size:20).
menu foregroundColor:Color red.
menu backgroundColor:Color yellow.
menu viewBackground:Color yellow.
menu showSeparatingLines:true.
menu origin:0.0@0.0 corner:1.0@(menu height).
menu labels:#('foo' 'bar').
menu selectors:#(foo bar).
menu at:#foo
putLabels:#('foo1' 'foo2' 'foo3')
selectors:#(foo1 foo2 foo3)
receiver:nil.
(menu menuAt:#foo) font:(Font family:'courier' size:36).
top open
you can use icons, too ...
[exEnd]
|labels top menu|
top := StandardSystemView new.
top extent:300@300.
menu := PullDownMenu in:top.
menu origin:0.0@0.0 corner:1.0@(menu height).
labels := Array with:((Image fromFile:'SmalltalkX.xbm') magnifiedTo:16@16)
with:'foo'
with:'bar'.
menu labels:labels.
menu selectors:#(about foo bar).
menu at:#about
putLabels:#('about PullDownMenus')
selectors:#(aboutMenus)
receiver:nil.
menu at:#foo
putLabels:#('foo1' 'foo2' 'foo3')
selectors:#(foo1 foo2 foo3)
receiver:nil.
top open
a concrete example (combining things described above)
(using a Plug, since we have no application class here):
[exBegin]
|labels top menu textView appModel|
appModel := Plug new.
appModel respondTo:#quit with:[top destroy].
appModel respondTo:#showAbout with:[self information:'some info here ...'].
appModel respondTo:#help with:[self information:'some help here ...'].
top := StandardSystemView new.
top extent:300@300.
menu := PullDownMenu in:top.
menu receiver:appModel.
menu origin:0.0@0.0 corner:1.0@(menu height).
textView := ScrollableView forView:(EditTextView new).
textView origin:0.0@menu height corner:1.0@1.0.
top addSubView:textView.
labels := Array with:((Image fromFile:'SmalltalkX.xbm') magnifiedTo:16@16)
with:'file'
with:'edit'
with:'help'.
menu labels:labels.
menu selectors:#(about file edit help).
menu at:#about
putLabels:#('about PullDownMenus')
selectors:#(showAbout)
receiver:appModel.
menu at:#file
putLabels:#('quit')
selectors:#(quit)
receiver:appModel.
menu at:#edit
putLabels:#('copy' 'cut' 'paste')
selectors:#(copySelection cut paste)
receiver:textView.
top open
[exEnd]
"
! !
!PullDownMenu class methodsFor:'instance creation'!
labels:titleArray
"create and return a new PullDownMenu"
^ self new labels:titleArray
! !
!PullDownMenu class methodsFor:'defaults'!
updateStyleCache
"extract values from the styleSheet and cache them in class variables"
<resource: #style (#pullDownMenuViewBackground #menuViewBackground
#pullDownMenuForegroundColor #menuForegroundColor
#pullDownMenuBackgroundColor #menuBackgroundColor
#pullDownMenuHilightForegroundColor #menuHilightForegroundColor
#pullDownMenuHilightBackgroundColor #menuHilightBackgroundColor
#pullDownMenuHilightLevel #menuHilightLevel
#pullDownMenuEdgeStyle #pullDownMenuKeepMenu
#pullDownMenuToggleKeep #pullDownMenuLevel
#pullDownMenuFont #menuFont
#pullDownMenuSeparatingLines)>
|styleSheet|
styleSheet := StyleSheet.
DefaultViewBackground := styleSheet colorAt:'pullDownMenuViewBackground'.
DefaultViewBackground isNil ifTrue:[
DefaultViewBackground := styleSheet colorAt:'menuViewBackground'.
].
DefaultForegroundColor := styleSheet colorAt:'pullDownMenuForegroundColor'.
DefaultForegroundColor isNil ifTrue:[
DefaultForegroundColor := styleSheet colorAt:'menuForegroundColor'.
].
DefaultBackgroundColor := styleSheet colorAt:'pullDownMenuBackgroundColor'.
DefaultBackgroundColor isNil ifTrue:[
DefaultViewBackground notNil ifTrue:[
DefaultBackgroundColor := DefaultViewBackground
] ifFalse:[
DefaultBackgroundColor := styleSheet colorAt:'menuBackgroundColor'.
]
].
DefaultHilightForegroundColor := styleSheet colorAt:'pullDownMenuHilightForegroundColor'.
DefaultHilightForegroundColor isNil ifTrue:[
DefaultHilightForegroundColor := styleSheet colorAt:'menuHilightForegroundColor'.
].
DefaultHilightBackgroundColor := styleSheet colorAt:'pullDownMenuHilightBackgroundColor'.
DefaultHilightBackgroundColor isNil ifTrue:[
DefaultHilightBackgroundColor := styleSheet colorAt:'menuHilightBackgroundColor'.
].
DefaultHilightLevel := styleSheet at:'pullDownMenuHilightLevel'.
DefaultHilightLevel isNil ifTrue:[
DefaultHilightLevel := styleSheet at:'menuHilightLevel' default:0.
].
DefaultEdgeStyle := styleSheet at:'pullDownMenuEdgeStyle'.
DefaultKeepMenu := styleSheet at:'pullDownMenuKeepMenu' default:false.
DefaultToggleKeep := styleSheet at:'pullDownMenuToggleKeep' default:false.
DefaultLevel := styleSheet at:'pullDownMenuLevel' default:1.
DefaultFont := styleSheet fontAt:'pullDownMenuFont'.
DefaultFont isNil ifTrue:[DefaultFont := styleSheet fontAt:'menuFont'].
DefaultSeparatingLines := styleSheet at:'pullDownMenuSeparatingLines' default:false.
"
PullDownMenu updateStyleCache
"
"Modified: 1.3.1996 / 13:45:19 / cg"
! !
!PullDownMenu methodsFor:'accessing'!
add:label selector:selector
"add a new title-item at the end.
The corresponding label can later be set with #at:putMenu:
or #at:putLabels:selectors:..."
self add:label selector:selector after:nil
"Modified: 5.6.1996 / 16:45:46 / cg"
!
add:label selector:selector after:indexOrString
"add a new title-item after an existing item, indexOrString,
or at the end if the after-arg is nil.
The corresponding label can later be set with #at:putMenu:
or #at:putLabels:selectors:..."
|idx|
indexOrString isNil ifTrue:[
idx := titles size
] ifFalse:[
idx := self indexOf:indexOrString.
].
titles isNil ifTrue:[
menus := Array with:nil.
titles := Array with:label.
selectors := Array with:selector.
] ifFalse:[
menus := (menus copyTo:idx) , #(nil) , (menus copyFrom:idx+1).
titles := ((titles copyTo:idx) copyWith:label) , (titles copyFrom:idx+1).
selectors := ((selectors copyTo:idx) copyWith:selector) , (selectors copyFrom:idx+1).
].
shown ifTrue:[
self redraw
]
"
|top m|
top := StandardSystemView new.
m := PullDownMenu in:top.
m labels:#('file' 'edit').
m selectors:#(file #edit).
m add:'help' selector:#help after:#file.
m at:#help putMenu:(MenuView labels:#('foo' 'bar')
selectors:#(foo bar)
receiver:nil).
top open
"
"Modified: 5.7.1996 / 11:40:47 / cg"
!
add:label selector:selector before:indexOrString
"add a new title-item before an existing item, indexOrString,
or at the beginning if the before-arg is nil.
The corresponding label can later be set with #at:putMenu:
or #at:putLabels:selectors:..."
|idx|
indexOrString isNil ifTrue:[
idx := 1
] ifFalse:[
idx := self indexOf:indexOrString.
].
titles isNil ifTrue:[
menus := Array with:nil.
titles := Array with:label.
selectors := Array with:selector.
] ifFalse:[
menus := (menus copyTo:idx-1) , #(nil) , (menus copyFrom:idx).
titles := ((titles copyTo:idx-1) copyWith:label) , (titles copyFrom:idx).
selectors := ((selectors copyTo:idx-1) copyWith:selector) , (selectors copyFrom:idx).
].
shown ifTrue:[
self redraw
]
"
|top m|
top := StandardSystemView new.
m := PullDownMenu in:top.
m labels:#('file' 'edit').
m selectors:#(file #edit).
m add:'help' selector:#help before:#edit.
m at:#help putMenu:(MenuView labels:#('foo' 'bar')
selectors:#(foo bar)
receiver:nil).
m add:'foo' selector:#foo before:nil.
m at:#foo putMenu:(MenuView labels:#('foo1' 'foo2')
selectors:#(foo1 foo2)
receiver:nil).
top open
"
"Modified: 5.7.1996 / 11:40:55 / cg"
!
at:aString putLabels:labels selector:selector args:args receiver:anObject
"create and set the menu under the title, aString
OBSOLETE protocol: labels:selectors:args:receiver: knows how to handle a
single symbol-arg for selectors ..."
^ self at:aString putLabels:labels selectors:selector args:args receiver:anObject
"Modified: 5.6.1996 / 16:47:32 / cg"
!
at:aString putLabels:labels selectors:selectors
"create and set the menu under the title, aString"
^ self at:aString putLabels:labels selectors:selectors receiver:nil
"Created: 24.3.1996 / 17:06:45 / cg"
!
at:aString putLabels:labels selectors:selectors accelerators:shorties args:args receiver:anObject
"create and set the menu under the title, aString"
|menuView|
menuView := MenuView labels:labels
selectors:selectors
accelerators:shorties
args:args
receiver:anObject
for:self.
self at:aString putMenu:menuView
"Created: 5.6.1996 / 16:51:48 / cg"
!
at:aString putLabels:labels selectors:selectors accelerators:shorties receiver:anObject
"create and set the menu under the title, aString"
self at:aString putLabels:labels selectors:selectors accelerators:shorties args:nil receiver:anObject
"Modified: 5.6.1996 / 16:48:26 / cg"
"Created: 5.6.1996 / 16:53:39 / cg"
!
at:aString putLabels:labels selectors:selectors args:args receiver:anObject
"create and set the menu under the title, aString"
|menuView|
menuView := MenuView labels:labels
selectors:selectors
args:args
receiver:anObject
for:self.
self at:aString putMenu:menuView
!
at:aString putLabels:labels selectors:selectors receiver:anObject
"create and set the menu under the title, aString"
self at:aString putLabels:labels selectors:selectors args:nil receiver:anObject
"Modified: 5.6.1996 / 16:48:26 / cg"
!
at:aString putMenu:aMenu
"set the menu under the title, aString"
|index|
index := self indexOf:aString.
(index == 0) ifTrue:[
self error:'no such menu entry'.
^ nil
].
aMenu container:(self superView).
aMenu beInvisible.
menus at:index put:aMenu.
aMenu masterView:self.
"Modified: 5.6.1996 / 16:48:50 / cg"
!
labels
"return the menu-titles (group-headers)"
^ titles
!
labels:titleArray
"define the menu-titles (group-headers)"
|numberOfLabels|
numberOfLabels := titleArray size.
menus := Array new:numberOfLabels.
titles := Array new:numberOfLabels.
titleArray keysAndValuesDo:[:index :entry |
|e|
entry isImage ifTrue:[
e := entry on:device
] ifFalse:[
e := entry printString
].
titles at:index put:e
].
shown ifTrue:[
self invalidate "/ clear; redraw
]
"Modified: 29.5.1996 / 16:21:00 / cg"
!
labels:titleArray selectors:selectorArray
"define the menu-titles (group-headers) and selectors.
Selectors are mostly used as access keys to get to submenus later."
self labels:titleArray.
self selectors:selectorArray
"Created: 20.10.1995 / 20:15:54 / cg"
!
menuAt:stringOrNumber
"return the menu with the title; nil if not found"
^ self subMenuAt:stringOrNumber
"Modified: 24.3.1996 / 17:10:11 / cg"
!
numberOfTitles:n
"setup blank title-space to be filled in later"
menus := Array new:n.
titles := Array new:n
!
receiver:anObject
"set the menu-receiver. Thats the one who gets the
messages (both from myself and from my submenus).
This only sets the receiver for menus which are already
created - menus added later should get their receiver in
the creation send."
receiver := anObject.
menus notNil ifTrue:[
menus do:[:aMenu |
aMenu notNil ifTrue:[
aMenu receiver:anObject
]
]
]
!
remove:indexOrString
"remove the menu, indexOrString."
|idx|
idx := self indexOf:indexOrString.
idx == 0 ifTrue:[^ self].
menus removeIndex:idx.
titles removeIndex:idx.
selectors removeIndex:idx.
shown ifTrue:[
self clear.
self redraw
]
"
|top m|
top := StandardSystemView new extent:300@200.
m := PullDownMenu in:top.
m labels:#('file' 'edit').
m selectors:#(file #edit).
top open.
Delay waitForSeconds:3.
m add:'help' selector:#help after:#file.
m at:#help putMenu:(MenuView labels:#('foo' 'bar')
selectors:#(foo bar)
receiver:nil).
Delay waitForSeconds:3.
m remove:'help'
"
"Modified: 5.7.1996 / 11:43:08 / cg"
!
selectors
"return the menu-selectors"
^ selectors
!
selectors:selectorArray
"define the menu-selectors. These are used as accesskey only
in menuAt: accesses. This makes PullDownMenu accesss
somewhat more compatible to PopUpMenus."
selectors := selectorArray copy.
"Modified: 30.4.1996 / 15:57:04 / cg"
!
subMenuAt:stringOrNumber
"return the menu with the title; nil if not found."
|index|
index := self indexOf:stringOrNumber.
(index == 0) ifTrue:[^ nil].
^ menus at:index
"Modified: 24.3.1996 / 17:09:56 / cg"
! !
!PullDownMenu methodsFor:'accessing-behavior'!
actionAt:stringOrNumber
"return the actionBlock associated with stringOrNumber;
nil if there is none (but there may be still a selector there)."
|index|
actions isNil ifTrue:[^ nil].
index := self indexOf:stringOrNumber.
(index == 0) ifTrue:[^ nil].
^ actions at:index ifAbsent:nil
"Modified: 24.3.1996 / 17:09:56 / cg"
"Created: 17.4.1996 / 20:50:45 / cg"
!
actionAt:stringOrNumber put:aBlock
"return the actionBlock associated with stringOrNumber;
nil if there is none (but there may be still a selector there)."
|index newActions|
index := self indexOf:stringOrNumber.
(index == 0) ifTrue:[^ nil].
actions size < index ifTrue:[
newActions := Array new:index.
newActions replaceFrom:1 to:actions size with:actions.
actions := newActions
].
actions at:index put:aBlock
"Modified: 24.3.1996 / 17:09:56 / cg"
"Created: 17.4.1996 / 20:52:13 / cg"
! !
!PullDownMenu methodsFor:'accessing-look'!
backgroundColor:aColor
"set the background drawing color.
You should not use this method; instead leave the value as
defined in the styleSheet."
bgColor := aColor on:device
!
font:aFont
"set the menus font.
adjusts menu-origins when font changes.
You should not use this method; instead leave the value as
defined in the styleSheet.
CAVEAT: with the addition of Text objects,
this method is going to be obsoleted by a textStyle
method, which allows specific control over
normalFont/boldFont/italicFont parameters."
aFont ~~ font ifTrue:[
super font:(aFont on:device).
self height:(font height + (font descent * 2)).
shown ifTrue:[
self setMenuOrigins
]
]
"Modified: 22.5.1996 / 12:37:04 / cg"
!
foregroundColor:aColor
"set the foreground drawing color.
You should not use this method; instead leave the value as
defined in the styleSheet."
fgColor := aColor on:device
!
showSeparatingLines:aBoolean
"turn on/off drawing of separating lines.
You should not use this method; instead leave the value as
defined in the styleSheet."
showSeparatingLines := aBoolean.
shown ifTrue:[
self setMenuOrigins.
self invalidate
]
"Modified: 29.5.1996 / 16:21:06 / cg"
! !
!PullDownMenu methodsFor:'drawing '!
drawActiveTitleSelected:selected
|x|
activeMenuNumber notNil ifTrue:[
x := self titleLenUpTo:activeMenuNumber.
self drawTitle:(titles at:activeMenuNumber) x:x selected:selected
]
!
drawTitle:stringOrImage x:x0 selected:selected
|y w x wSpace fg bg map|
selected ifTrue:[
fg := activeFgColor.
bg := activeBgColor
] ifFalse:[
fg := fgColor.
bg := bgColor
].
wSpace := font widthOf:' '.
x := x0.
stringOrImage isString ifTrue:[
y := ((height - (font height)) // 2) + (font ascent) "+ topMargin".
w := font widthOf:stringOrImage.
] ifFalse:[
y := ((height - stringOrImage height) // 2) max:0.
w := stringOrImage width
].
w := w + (wSpace * 2).
self paint:bg.
self fillRectangleX:x y:0 width:w height:height.
self is3D ifTrue:[
self drawEdgesForX:x y:0
width:w
height:height
level:(selected ifTrue:[onLevel] ifFalse:[offLevel])
].
self paint:fg on:bg.
x := x + wSpace.
stringOrImage isString ifTrue:[
self displayOpaqueString:stringOrImage x:x y:y
] ifFalse:[
stringOrImage isImageOrForm ifTrue:[
stringOrImage depth == 1 ifTrue:[
(map := stringOrImage colorMap) notNil ifTrue:[
self paint:(map at:2) on:(map at:1).
self displayOpaqueForm:stringOrImage x:x y:y.
^ self
]
].
self displayForm:stringOrImage x:x y:y
] ifFalse:[
stringOrImage displayOn:self x:x y:y
]
]
"Modified: 20.10.1995 / 22:03:27 / cg"
!
highlightActiveTitle
self drawActiveTitleSelected:true
!
redraw
|x "{ Class: SmallInteger }"
y "{ Class: SmallInteger }"
index "{ Class: SmallInteger }"
wSpace clr|
shown ifFalse: [ ^ self ].
titles isNil ifTrue:[^ self].
wSpace := (font widthOf:' ').
x := 0.
y := height "- 1".
index := 1.
titles do:[:title |
self drawTitle:title x:x selected:(index == activeMenuNumber).
title isString ifTrue:[
x := x + (font widthOf:title).
] ifFalse:[
x := x + title width
].
x := x + wSpace + wSpace.
showSeparatingLines ifTrue:[
self is3D ifTrue:[
self paint:shadowColor.
self displayLineFromX:x y:0 toX:x y:y.
x := x + 1.
clr := lightColor.
] ifFalse:[
clr := fgColor.
].
self paint:clr.
self displayLineFromX:x y:0 toX:x y:y.
x := x + 1
].
index := index + 1
]
!
unHighlightActiveTitle
self drawActiveTitleSelected:false
! !
!PullDownMenu methodsFor:'event handling'!
buttonMotion:state x:x y:y
|titleIndex activeMenu activeLeft activeTop|
state == 0 ifTrue:[^ self].
activeMenuNumber notNil ifTrue:[
activeMenu := menus at:activeMenuNumber.
].
(y < height) ifTrue:[
"moving around in title line"
activeMenu notNil ifTrue:[
activeMenu setSelection:nil
].
titleIndex := self titleIndexForX:x.
titleIndex notNil ifTrue:[
(titleIndex ~~ activeMenuNumber) ifTrue:[
self pullMenu:titleIndex
]
] ifFalse:[
self hideActiveMenu
]
] ifFalse:[
"moving around below"
activeMenu isNil ifTrue:[^self].
activeLeft := activeMenu left.
(x between:activeLeft and:(activeMenu right)) ifTrue:[
activeTop := activeMenu top.
(y between:activeTop and:(activeMenu bottom)) ifTrue:[
"moving around in menu"
activeMenu buttonMotion:state
x:(x - activeLeft)
y:(y - activeTop).
^ self
]
].
"moved outside menu"
activeMenu setSelection:nil
]
"Modified: 25.5.1996 / 12:28:32 / cg"
!
buttonPress:button x:x y:y
|titleIndex activeMenu activeLeft activeTop m|
device ungrabPointer.
device ungrabKeyboard.
(y between:0 and:height) ifTrue:[
titleIndex := self titleIndexForX:x.
].
"
now, titleIndex is non-nil if pressed within myself
"
(titleIndex notNil and:[titleIndex ~~ activeMenuNumber]) ifTrue:[
m := self pullMenu:titleIndex.
(keepMenu and:[m notNil]) ifTrue:[
device grabPointerInView:self.
device grabKeyboardInView:self.
"/ self cursor:Cursor upRightArrow
]
] ifFalse:[
(keepMenu and:[toggleKeep not]) ifTrue:[
titleIndex == activeMenuNumber ifTrue:[
"same pressed again ... stay"
titleIndex notNil ifTrue:[
device grabPointerInView:self.
device grabKeyboardInView:self.
].
^ self
].
"moving around below"
activeMenuNumber isNil ifTrue:[^self].
activeMenu := menus at:activeMenuNumber.
activeLeft := activeMenu left.
(x between:activeLeft and:(activeMenu right)) ifTrue:[
activeTop := activeMenu top.
(y between:activeTop and:(activeMenu bottom)) ifTrue:[
"moving around in menu"
activeMenu buttonPress:button
x:(x - activeLeft)
y:(y - activeTop).
^ self
]
].
].
self hideActiveMenu
]
"Modified: 6.3.1996 / 17:14:16 / cg"
!
buttonRelease:button x:x y:y
|activeMenu activeLeft activeTop hideMenu sel|
activeMenuNumber isNil ifTrue:[^self].
activeMenu := menus at:activeMenuNumber.
hideMenu := false.
(y >= height) ifTrue:[
"release below title-line"
activeLeft := activeMenu left.
"
released in a submenu ?
"
(x between:activeLeft and:(activeMenu right)) ifTrue:[
activeTop := activeMenu top.
(y between:activeTop and:(activeMenu bottom)) ifTrue:[
"release in menu"
self hideActiveMenu.
activeMenu buttonRelease:button
x:(x - activeLeft)
y:(y - activeTop).
^ self
]
].
hideMenu := true.
] ifFalse:[
y < 0 ifTrue:[
hideMenu := true
] ifFalse:[
activeMenu isNil ifTrue:[
self performSelectedAction.
hideMenu := true.
] ifFalse:[
keepMenu ifFalse:[
hideMenu := true
]
]
]
].
hideMenu ifTrue:[
self hideActiveMenu.
]
"Modified: 17.4.1996 / 20:56:08 / cg"
!
keyPress:key x:x y:y
<resource: #keyboard (#CursorLeft #CursorRight #MenuSelect #Return)>
|index startIndex m sel|
"
handle CursorLeft/Right for non-mouse operation
(for example, if it has the explicit focus)
These will pull the previous/next menu
"
((key == #CursorRight) or:[key == #CursorLeft]) ifTrue:[
activeMenuNumber isNil ifTrue:[
index := (key == #CursorRight) ifTrue:[1] ifFalse:[menus size].
] ifFalse:[
(key == #CursorRight) ifTrue:[
index := activeMenuNumber+1
] ifFalse:[
index := activeMenuNumber-1
].
index == 0 ifTrue:[index := menus size]
ifFalse:[
index > menus size ifTrue:[index := 1]
]
].
self pullMenu:index.
^ self
].
"/ activeMenuNumber isNil ifTrue:[
"/
"/ find an item starting with that alpha-key
"/
key isCharacter ifTrue:[
(key isLetter) ifTrue:[
activeMenuNumber isNil ifTrue:[
startIndex := 1.
] ifFalse:[
startIndex := activeMenuNumber + 1
].
index := titles
findFirst:[:item |
item isString
and:[(item startsWith:key asUppercase)
or:[item startsWith:key asLowercase]]]
startingAt:startIndex.
(index == 0 and:[startIndex ~~ 1]) ifTrue:[
index := titles
findFirst:[:item |
item isString
and:[(item startsWith:key asUppercase)
or:[item startsWith:key asLowercase]]]
startingAt:1.
].
index ~~ 0 ifTrue:[
self pullMenu:index.
].
^ self
]
].
"/ ].
activeMenuNumber isNil ifTrue:[
^ super keyPress:key x:x y:y
].
"
Return, space or the (virtual) MenuSelect key trigger
a menu entry (for non-submenu entries).
Otherwise, if we have a submenu open,
pass the key on to it ...
"
m := menus at:activeMenuNumber.
m isNil ifTrue:[
(key == #Return
or:[key == #MenuSelect
or:[key == Character space]]) ifTrue:[
self performSelectedAction.
].
] ifFalse:[
m keyPress:key x:0 y:0.
].
"Modified: 9.1.1997 / 12:15:48 / cg"
!
showNoFocus:explicit
"when stepping focus, hide any active menu"
self hideActiveMenu.
super showNoFocus:explicit
! !
!PullDownMenu methodsFor:'hiding/showing menus'!
hide
"sent by an aborted menu"
self hideActiveMenu.
!
hideActiveMenu
"hide currently active menu - release grab if there is any grab (keepMenu)"
^ self hideActiveMenuRelease:true
!
hideActiveMenuRelease:aBoolean
"hide currently active menu - release grab if aBoolean is true
and a grab was set (keepMenu)"
|m|
activeMenuNumber notNil ifTrue:[
(m := menus at:activeMenuNumber) notNil ifTrue:[
m beInvisible.
].
self unHighlightActiveTitle.
activeMenuNumber := nil
].
aBoolean ifTrue:[
device ungrabKeyboard.
device ungrabPointer.
"/ self cursor:Cursor normal
].
"Modified: 6.3.1996 / 17:14:21 / cg"
!
pullMenu:aNumber
"activate a menu, return it or nil"
<resource: #style (#pullDownMenuAutoselectFirst)>
|subMenu r posY|
activeMenuNumber notNil ifTrue:[self hideActiveMenuRelease:false].
activeMenuNumber := aNumber.
subMenu := menus at:aNumber.
raiseTopWhenActivated ifTrue:[
self topView raise.
].
(activeMenuNumber notNil
and:[
subMenu notNil
or:[selectors notNil and:[(selectors at:activeMenuNumber) notNil]]]) ifTrue:[
self highlightActiveTitle.
].
subMenu notNil ifTrue:[
subMenu origin:((left + (self titleLenUpTo:aNumber))
@
(posY := height + subMenu borderWidth)).
subMenu hiddenOnRealize:false.
subMenu setSelection:nil.
subMenu create.
subMenu saveUnder:true.
subMenu superMenu:self.
subMenu right > (r := self right) ifTrue:[
subMenu origin:((r - subMenu width) @ posY).
].
subMenu raise show.
(styleSheet at:#pullDownMenuAutoselectFirst) == true ifTrue:[
subMenu setSelection:1
]
].
^ subMenu
"Modified: 12.6.1996 / 14:54:09 / cg"
!
regainControl
keepMenu ifTrue:[
device grabPointerInView:self.
device grabKeyboardInView:self.
"/ self cursor:Cursor upRightArrow
]
"Modified: 6.3.1996 / 17:14:27 / cg"
! !
!PullDownMenu methodsFor:'initialize / release'!
container:aView
"when my container changes, all of my menus must change as well"
super container:aView.
menus notNil ifTrue:[
menus do:[:aMenu |
aMenu notNil ifTrue:[
aMenu container:aView
]
]
]
"Modified: 9.5.1996 / 00:43:13 / cg"
"Created: 9.5.1996 / 00:43:38 / cg"
!
create
super create.
self setMenuOrigins
!
destroy
"have to destroy the menus manually here,
since they are no real subviews of myself"
menus notNil ifTrue:[
menus do:[:m |
m notNil ifTrue:[m destroy]
].
menus := nil
].
activeMenuNumber := nil.
super destroy.
!
fetchDeviceResources
"fetch device colors, to avoid reallocation at redraw time"
super fetchDeviceResources.
bgColor notNil ifTrue:[bgColor := bgColor on:device].
fgColor notNil ifTrue:[fgColor := fgColor on:device].
activeBgColor notNil ifTrue:[activeBgColor := activeBgColor on:device].
activeFgColor notNil ifTrue:[activeFgColor := activeFgColor on:device].
"Created: 13.1.1997 / 23:25:14 / cg"
!
initCursor
"set up a hand cursor"
cursor := Cursor hand
!
initStyle
<resource: #style (#name)>
|style|
super initStyle.
"/ DefaultFont notNil ifTrue:[font := DefaultFont on:device].
showSeparatingLines := DefaultSeparatingLines. "/ false.
DefaultViewBackground notNil ifTrue:[
viewBackground := DefaultViewBackground on:device
].
DefaultForegroundColor notNil ifTrue:[
fgColor := DefaultForegroundColor
] ifFalse:[
fgColor := Black.
].
DefaultBackgroundColor notNil ifTrue:[
bgColor := DefaultBackgroundColor
] ifFalse:[
bgColor := viewBackground.
].
onLevel := DefaultHilightLevel.
offLevel := DefaultLevel.
self is3D ifTrue:[
device hasColors ifTrue:[
activeFgColor := Color name:'yellow'
] ifFalse:[
activeFgColor := White
].
device hasGrayscales ifTrue:[
activeBgColor := bgColor.
] ifFalse:[
activeBgColor := fgColor.
].
topMargin := 2.
style := styleSheet name.
((style == #iris) or:[style == #motif]) ifTrue:[
self level:2.
onLevel := 2.
offLevel := 0.
activeFgColor := fgColor
]
] ifFalse:[
activeFgColor := bgColor.
activeBgColor := fgColor.
topMargin := 0
].
edgeStyle := DefaultEdgeStyle.
keepMenu := DefaultKeepMenu.
toggleKeep := DefaultToggleKeep.
DefaultHilightForegroundColor notNil ifTrue:[
activeFgColor := DefaultHilightForegroundColor
].
DefaultHilightBackgroundColor notNil ifTrue:[
activeBgColor := DefaultHilightBackgroundColor
].
DefaultShadowColor notNil ifTrue:[
shadowColor := DefaultShadowColor
].
DefaultLightColor notNil ifTrue:[
lightColor := DefaultLightColor
].
raiseTopWhenActivated := styleSheet at:'pullDownMenuRaiseTop' default:true.
"Modified: 13.1.1997 / 23:51:21 / cg"
!
initialize
super initialize.
font := font on:device.
self origin:(0.0 @ 0.0)
extent:(1.0 @ self preferredExtent y)
"/ extent:(1.0 @ (font height + (font descent * 2) + topMargin)).
!
recreate
"if the image was saved with an active menu, hide it"
|m|
activeMenuNumber notNil ifTrue:[
(m := menus at:activeMenuNumber) notNil ifTrue:[
m unmap.
].
activeMenuNumber := nil.
].
super recreate.
self setMenuOrigins
"Modified: 3.5.1996 / 23:48:55 / stefan"
! !
!PullDownMenu methodsFor:'private'!
indexOf:stringOrNumber
"return the index of the menu with title; return 0 if not found.
stringOrNumber may be a number, a selector from the selectorArray
or a string from the title array.
If stringOrNumber is not a valid item, return 0."
|idx|
stringOrNumber isNumber ifTrue:[
^ stringOrNumber
].
selectors notNil ifTrue:[
idx := selectors indexOf:stringOrNumber.
idx ~~ 0 ifTrue:[^ idx].
].
stringOrNumber isString ifTrue:[
^ titles indexOf:stringOrNumber
].
(stringOrNumber respondsTo:#string) ifTrue:[
^ titles indexOf:stringOrNumber asString
].
^ 0
"Modified: 27.4.1996 / 15:25:28 / cg"
!
performEntry:itemIndex
|block sel|
actions notNil ifTrue:[
block := actions at:itemIndex.
block notNil ifTrue:[
block value.
^ self
].
].
selectors notNil ifTrue:[
sel := selectors at:itemIndex.
sel notNil ifTrue:[
model notNil ifTrue:[
model perform:sel
] ifFalse:[
receiver perform:sel
]
].
].
"Modified: 17.4.1996 / 20:55:11 / cg"
!
performSelectedAction
|block sel|
actions notNil ifTrue:[
block := actions at:activeMenuNumber.
block notNil ifTrue:[
block value.
^ self
].
].
selectors notNil ifTrue:[
sel := selectors at:activeMenuNumber.
sel notNil ifTrue:[
model notNil ifTrue:[
model perform:sel
] ifFalse:[
receiver perform:sel
]
].
].
"Modified: 17.4.1996 / 20:55:11 / cg"
"Created: 17.4.1996 / 20:55:53 / cg"
!
setMenuOrigins
"adjust origins of menus when font changes"
(font graphicsDevice == device) ifTrue:[
menus notNil ifTrue:[
menus keysAndValuesDo:[:index :aMenu |
aMenu notNil ifTrue:[
aMenu origin:((left + (self titleLenUpTo:index))
@
(height + aMenu borderWidth))
].
]
]
]
"Modified: 5.7.1996 / 17:55:08 / cg"
!
someMenuItemLabeled:aLabel
"find a menu item.
Currently, in ST/X, instances of MenuItem are only created as dummy"
|idx|
idx := self indexOf:aLabel.
idx ~~ 0 ifTrue:[
^ MenuItem new menu:self index:idx
].
menus notNil ifTrue:[
menus do:[:aMenu |
|item|
aMenu notNil ifTrue:[
(item := aMenu someMenuItemLabeled:aLabel) notNil ifTrue:[
^ item
]
]
]
].
^ nil
!
titleIndexForX:x
"given a click x-position, return index in title or nil"
|xstart "{ Class: SmallInteger }"
xend "{ Class: SmallInteger }"
wSpace wSep|
wSpace := (font widthOf:' ') * 2.
showSeparatingLines ifTrue:[
self is3D ifTrue:[
wSep := 2
] ifFalse:[
wSep := 1
]
] ifFalse:[
wSep := 0
].
xstart := 0.
1 to:(titles size) do:[:index |
|entry thisLength|
entry := titles at:index.
entry isString ifTrue:[
thisLength := font widthOf:entry.
] ifFalse:[
thisLength := entry width
].
xend := xstart + thisLength + wSpace + wSep.
(x between:xstart and:xend) ifTrue:[^ index].
xstart := xend
].
^ nil
!
titleLenUpTo:index
"answer len (in pixels) of all title-strings up-to
(but excluding) title-index. Used to compute x-position when drawing
individual entries."
|len "{ Class: SmallInteger }"
wSpace wSep|
(index <= 1) ifTrue:[^ 0].
wSpace := (font widthOf:' ').
showSeparatingLines ifTrue:[
self is3D ifTrue:[
wSep := 2
] ifFalse:[
wSep := 1
]
] ifFalse:[
wSep := 0
].
len := 0.
titles from:1 to:(index - 1) do:[:entry |
|thisLength|
entry isString ifTrue:[
thisLength := (font widthOf:entry).
] ifFalse:[
thisLength := entry width
].
len := len + thisLength + wSpace + wSep + wSpace.
].
^ len
! !
!PullDownMenu methodsFor:'queries'!
preferredExtent
"return my preferredExtent from the title-item widths & font height"
|w|
"/ If I have an explicit preferredExtent ..
preferredExtent notNil ifTrue:[
^ preferredExtent
].
w := self titleLenUpTo:(titles size + 1).
^ w @ (font height + (font descent * 2) "+ topMargin" + (margin*2)).
"Modified: 19.7.1996 / 20:45:20 / cg"
! !
!PullDownMenu methodsFor:'submenu notifications'!
hideSubmenu
"sent by en escaped menu - ignored here"
^ self
"Modified: 4.3.1996 / 22:58:22 / cg"
!
showActive
"sent by a menu to tell me that it starts to perform
its menu action."
windowGroup notNil ifTrue:[windowGroup showCursor:Cursor wait]
!
showPassive
"sent by a menu to tell me that it finished its menu-action.
Here, we hide the currently active menu."
self hideActiveMenu.
windowGroup notNil ifTrue:[windowGroup restoreCursors]
!
submenuTriggered
"sent by a sub-submenu to tell me that it finished its menu-action."
self showPassive
! !
!PullDownMenu class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/libwidg/PullDownMenu.st,v 1.69 1997-01-13 22:51:31 cg Exp $'
! !