GraphColumnView subclass:#GraphColumnView2D
instanceVariableNames:'colorMap gridXoffset gridX gridY actionBlock doubleClickBlock
buttonReleaseBlock menuAccessBlock'
classVariableNames:''
poolDictionaries:''
category:'Views-Graphs'
!
!GraphColumnView2D class methodsFor:'documentation'!
documentation
"
The class provides all the functionality for showing, scrolling and manipulating graphs
described through to a GraphColumn description. Each change in a graph description
immediately take affect.
[See also:]
GraphColumn
GraphColumnView
GraphColumnView3D
[Author:]
Claus Atzkern
"
! !
!GraphColumnView2D class methodsFor:'defaults'!
gridStep
^ 8
! !
!GraphColumnView2D class methodsFor:'examples'!
test1
"testing references and actions
start with:
self test1
"
|top list view x|
top := StandardSystemView extent:800 @ 400.
view := GraphColumnView2D origin:0@0 extent:1.0@1.0 in:top.
list := OrderedCollection new.
top label:'2D-View'.
#( 0.25 0.5 0.75 ) keysAndValuesDo:[:aKey :xAxis||aCol|
aCol := GraphColumn name:aKey.
aCol relativeXaxis:xAxis.
xAxis ~= 0.5 ifTrue:[
xAxis < 0.5 ifTrue:[
aCol foregroundColor:(Color red).
] ifFalse:[
aCol foregroundColor:(Color blue).
aCol lineStyle:#dashed
]
].
aCol hLineStyle:#dashed.
aCol hLineList:#( 0 ).
aCol scaleY:40.
aCol functionYblock:[:start :array|
x := (start - 1) * 0.2.
1 to:(array size) do:[:i| array at:i put:(x sin). x := x + 0.2 ].
array
].
list add:aCol.
].
view action:[:column :indexX :deltaY|
Transcript showCR:'SINGLE CLICK:'.
Transcript showCR:' column: ', column printString,
' indexX: ', indexX printString,
' deltaY: ', deltaY printString.
view referenceAdd:indexX
].
view doubleClickAction:[:column :indexX :deltaY|
Transcript showCR:'DOUBLE CLICK:'.
Transcript showCR:' column: ', column printString,
' indexX: ', indexX printString,
' deltaY: ', deltaY printString.
].
view showDefaultMenu:true.
view showGrid:true.
view columns:list.
top openAndWait.
!
test2
"testing models and change notifications
start with:
self test2
"
|top list cols listView graph red blue yellow sav pause time
label butAct button b1 b2|
top := StandardSystemView extent:950 @ 400.
listView := ListView origin:0.0@20 corner:150@1.0 in:top.
graph := GraphColumnView2D origin:150@0 corner:1.0@1.0 in:top.
listView level:1.
(Label origin:2@2 in:top) label:'Delay:'.
time := 0.1.
label := Label origin:82@1 corner:128@19 in:top.
label sizeFixed:true.
label label:(time printString).
label level:1.
butAct := [:dT| time := (time + dT) max:0.0. label label:(time printString) ].
button := (ArrowButton leftIn:top) origin:60@0 extent:20@20.
button action:[butAct value:-0.05].
button autoRepeat:true.
button := (ArrowButton rightIn:top) origin:130@0 extent:20@20.
button action:[butAct value:0.05].
button autoRepeat:true.
cols := OrderedCollection new.
list := List new.
top label:'Testing 2D-View: Models & Style'.
listView list:OrderedCollection new.
graph showGrid:true.
graph listHolder:list.
top openAndWait.
#( 0.2 0.8 ) keysAndValuesDo:[:aKey :xAxis||aCol x|
aCol := GraphColumn name:'Column <', aKey printString, '>'.
aCol relativeXaxis:xAxis.
aCol hLineFgColor:(Color blue).
aCol scaleY:40.
aCol hLineStyle:#dashed.
aCol functionYblock:[:start :array|
x := (start - 1) * 0.2.
1 to:(array size) do:[:i| array at:i put:(x sin). x := x + 0.2 ].
array
].
cols add:aCol.
].
red := Color red.
blue := Color blue.
yellow := Color yellow lightened.
pause := [ |l|
l := listView list.
l size > 500 ifTrue:[l removeFromIndex:1 toIndex:400. listView list:l].
listView scrollToBottom.
(top shown and:[time > 0]) ifTrue:[Delay waitForSeconds:time] ].
[ [top shown] whileTrue:[
listView add:'ADD COLUMNS'.
cols do:[:el|
listView add:( ' ', el printString ).
list add:el.
pause value
].
listView add:( 'GRAPH' ).
listView add:( ' Background' ).
sav := graph backgroundColor.
graph backgroundColor:yellow.
pause value.
graph backgroundColor:sav.
sav := graph foregroundColor.
listView add:( ' Foreground' ).
graph foregroundColor:blue.
pause value.
graph foregroundColor:sav.
listView add:( 'GRID' ).
listView add:( ' Grid X' ).
graph gridExtent:(4 @ 0).
pause value.
listView add:( ' Grid Y' ).
graph gridExtent:(0 @ 4).
pause value.
listView add:( ' Grid X/Y' ).
graph gridExtent:(8 @ 8).
pause value.
listView add:( ' Color' ).
sav := graph gridColor.
graph gridColor:yellow.
pause value.
graph gridColor:sav.
listView add:( ' Off' ).
graph showGrid:false.
pause value.
listView add:( ' On' ).
graph showGrid:true.
listView add:( 'REFERENCES' ).
listView add:( ' Add' ).
#( 7 15 43 90 ) do:[:i| graph referenceAdd:i. pause value].
top shown ifTrue:[Delay waitForSeconds:time].
sav := graph referenceColor.
listView add:( ' Color' ).
graph referenceColor:blue.
pause value.
graph referenceColor:sav.
listView add:( ' Remove' ).
#( 7 15 43 90 ) do:[:i| graph referenceRemove:i. pause value ].
pause value.
listView add:'REMOVE COLUMNS'.
[list notEmpty] whileTrue:[
listView add:( ' ', list removeFirst printString ).
pause value
].
].
] forkAt:1.
!
test3
"testing models and change notifications
start with:
self test3
"
|top list slices index view graph column actLbl tmOut button bAction tmLbl title pause toggle auto next|
top := StandardSystemView extent:800 @ 400.
view := View origin:0@0 corner:1.0@28 in:top.
graph := GraphColumnView2D origin:0@28 corner:1.0@1.0 in:top.
list := OrderedCollection new.
top label:'Testing 2D-View: Model-Column'.
slices := #( ( foregroundColor #color )
( lineStyle #dashed )
( lineWidth 4 )
( hLineFgColor #color )
( hLineStyle #dashed )
( hLineWidth 4 )
( hLineList #( -0.8 -0.5 0 0.5 0.8 ) )
( shown false )
( scaleY 10 )
( transY 20 )
( relativeXaxis 0.2 )
).
column := GraphColumn name:'test'.
column relativeXaxis:0.5.
column scaleY:40.
column hLineList:#( -1 1 ).
column functionYblock:[:start :array||x|
x := (start - 1) * 0.2.
1 to:(array size) do:[:i| array at:i put:(x sin). x := x + 0.2 ].
array
].
tmOut := 1.0.
auto := true.
index := 1.
next := false.
view level:1.
toggle := CheckBox origin:0@0.0 corner:100@1.0 in:view.
toggle label:'Auto/Step'.
toggle turnOn.
toggle action:[:aState|
(next := auto := aState) ifTrue:[
title label:'Time: '.
tmLbl label:(tmOut printString).
] ifFalse:[
title label:'Step: '.
tmLbl label:(index printString).
]
].
title := Label origin:100@0.0 corner:160@1.0 in:view.
title adjust:#right.
title sizeFixed:true.
title label:'Time: '.
bAction := [:add|
auto ifTrue:[
tmOut := (tmOut + (add ifTrue:[0.1] ifFalse:[-0.1])) max:0.1.
tmLbl label:(tmOut printString).
] ifFalse:[
add ifTrue:[
(index := index + 1) > slices size ifTrue:[index := 1]
] ifFalse:[
(index := index - 1) < 1 ifTrue:[index := slices size]
].
tmLbl label:(index printString).
next := true.
]
].
button := ArrowButton leftIn:view.
button origin:160@0.0 corner:180@1.0.
button autoRepeat:true.
button pressAction:[ bAction value:false ].
button := ArrowButton rightIn:view.
button origin:181@0.0 corner:201@1.0.
button autoRepeat:true.
button pressAction:[ bAction value:true ].
tmLbl := Label origin:202 @0.0 corner:230@1.0 in:view.
tmLbl adjust:#center.
tmLbl sizeFixed:true.
tmLbl label:(tmOut printString).
actLbl := Label origin:230 @0.0 corner:290@1.0 in:view.
actLbl sizeFixed:true.
actLbl adjust:#right.
actLbl label:'Action: '.
actLbl := Label origin:290 @0.0 corner:1.0@1.0 in:view.
actLbl adjust:#left.
view subViews do:[:v| v verticalInset:2 ].
graph gridExtent:( 4 @ 4 ).
graph showDefaultMenu:true.
graph listHolder:(Array with:column).
top openAndWait.
pause := [
auto ifTrue:[
top shown ifTrue:[Delay waitForSeconds:tmOut]
] ifFalse:[
next := false.
[(next not and:[top shown])] whileTrue:[
Delay waitForSeconds:0.2
]
]
].
[ |sav rsl wsl arg dsc|
[top shown] whileTrue:[
dsc := slices at:index.
auto ifTrue:[
(index := index + 1) > slices size ifTrue:[
index := 1
]
].
rsl := dsc at:1.
wsl := (rsl, ':') asSymbol.
(arg := dsc at:2) == #color ifTrue:[arg := Color red].
sav := column perform:rsl.
actLbl label:wsl printString, ' ', arg printString.
column perform:wsl with:arg.
pause value.
column perform:wsl with:sav.
]
] forkAt:1.
!
testRun
"running view
start with:
self testRun
"
|top list view step x offs time lblX lblT lblC cbox halt xOrigin|
top := StandardSystemView extent:800 @ 400.
view := GraphColumnView2D origin:0@20 extent:1.0@1.0 in:top.
cbox := CheckBox origin:0@0.0 corner:50@20 in:top.
cbox label:'Stop'.
cbox action:[:v| halt := v].
xOrigin := 1 asValue.
lblX := Label origin:100@0.0 corner:0.4@20 in:top.
lblT := Label origin:0.4@0.0 corner:0.7@20 in:top.
lblC := Label origin:0.7@0.0 corner:1.0@20 in:top.
lblX level:1. lblX adjust:#left.
lblT level:1. lblT adjust:#left.
lblC level:1. lblC adjust:#left.
offs := 0.
step := 2.
list := OrderedCollection new.
top label:'Testing 2D-View: Performance Test'.
#( 0.25 0.5 0.75 ) do:[:xAxis||aCol|
aCol := GraphColumn new.
aCol relativeXaxis:xAxis.
xAxis ~= 0.5 ifTrue:[
xAxis < 0.5 ifTrue:[aCol foregroundColor:(Color red)]
ifFalse:[aCol foregroundColor:(Color blue)]
].
aCol hLineStyle:#dashed.
aCol hLineList:#( 0 ).
aCol scaleY:40.
aCol functionYblock:[:start :array|
x := start * 0.2.
1 to:(array size) do:[:i| array at:i put:(x sin). x := x + 0.2 ].
array
].
list add:aCol.
].
view showGrid:true.
view gridExtent:(4 @ 4).
view columns:list.
view windowSize:50.
view scrollUpdatesOriginX:true.
view graphOriginXHolder:xOrigin.
top openAndWait.
[ |tm total inc|
inc := 0.
total := 0.
[top shown] whileTrue:[
halt ifFalse:[
lblX label:('X-Offset: ', view graphOriginX printString).
lblT label:('Total Time: ', (total // 1000) printString, '::', (total \\ 1000) printString ).
lblC label:('Runs: ', inc printString).
tm := Time millisecondsToRun:[
xOrigin value:(xOrigin value + step)
].
inc := inc + 1.
total := total + tm.
] ifTrue:[
Delay waitForSeconds:0.2
]
]
] forkAt:1.
! !
!GraphColumnView2D class methodsFor:'menu'!
defaultMenu
"this window spec was automatically generated by the ST/X MenuEditor"
"do not manually edit this - the builder may not be able to
handle the specification if its corrupted."
"
MenuEditor new openOnClass:GraphColumnView2D andSelector:#defaultMenu
(Menu new fromLiteralArrayEncoding:(GraphColumnView2D defaultMenu)) startUp
"
<resource: #menu>
^
#(#Menu
#(
#(#MenuItem
#'label:' 'Show Grid'
#'indication:' #'showGrid:'
)
#(#MenuItem
#'label:' 'Show References'
#'indication:' #'showReferences:'
)
#(#MenuItem
#'label:' 'Grid Extent'
#'enabled:' #showGrid
#'submenu:'
#(#Menu
#(
#(#MenuItem
#'label:' 'Extent'
#'submenu:'
#(#Menu
#(
#(#MenuItem
#'label:' 'larger'
#'value:' #'doGridExtent:'
#'argument:' #larger
)
#(#MenuItem
#'label:' 'smaller'
#'value:' #'doGridExtent:'
#'argument:' #smaller
)
) nil
nil
)
)
#(#MenuItem
#'label:' 'X-Step'
#'argument:' #'doGridStepX:'
#'submenuChannel:' #'gridStepMenuSelector:'
)
#(#MenuItem
#'label:' 'Y-Step'
#'argument:' #'doGridStepY:'
#'submenuChannel:' #'gridStepMenuSelector:'
)
) nil
nil
)
)
#(#MenuItem
#'label:' 'Zoom Y'
#'submenuChannel:' #subMenuZoomY
)
) nil
nil
)
!
gridStepMenuSelector:aSelector
|menu width height item bitmap|
menu := Menu new.
width := 40.
height := 10.
#( off 1 2 4 8 ) do:[:aNumberOrSymbol|
item := MenuItem labeled:(aNumberOrSymbol printString).
item value:aSelector.
item argument:aNumberOrSymbol.
menu addItem:item.
].
^ menu
"
(self styleMenuSelector:#lineStyle) startUp
"
! !
!GraphColumnView2D methodsFor:'accessing actions'!
action
"action block which is performed on a single button click.
Number of arguments to the block can be 0 upto 4.
argument 1: nearest column to the click point
argument 2: the logical index (X)
argument 3: the distance y from the click point to the columns's graph
argument 4: physical y value
"
^ actionBlock
!
action:aBlockUpTo4Args
"action block which is performed on a single button click.
Number of arguments to the block can be 0 upto 4.
argument 1: nearest column to the click point
argument 2: the logical index (X)
argument 3: the distance y from the click point to the columns's graph
argument 4: physical y value
"
actionBlock := aBlockUpTo4Args
!
buttonReleaseBlock
"action block which is performed if the button is released; the number
of arguments to the block can be 0 upto 3.
argument 1: physical x value
argument 2: physical y value
argument 3: the logical index (X)
"
^ buttonReleaseBlock
!
buttonReleaseBlock:aThreeArgAction
"action block which is performed if the button is released; the number
of arguments to the block can be 0 upto 3.
argument 1: physical x value
argument 2: physical x value
argument 3: the logical index (X)
"
buttonReleaseBlock := aThreeArgAction
!
doubleClickAction
"action block which is performed on a double button click.
Number of arguments to the block can be 0 upto 4.
argument 1: nearest column to the click point
argument 2: the logical index (X)
argument 3: the distance y from the click point to the columns's graph
argument 4: physical y value
"
^ doubleClickBlock
!
doubleClickAction:aBlockUpTo4Args
"action block which is performed on a double button click.
Number of arguments to the block can be 0 upto 4.
argument 1: nearest column to the click point
argument 2: the logical index (X)
argument 3: the distance y from the click point to the columns's graph
argument 4: physical y value
"
doubleClickBlock := aBlockUpTo4Args
!
menuAccessBlock
"action block which is performed if a menu is required; if the block returns
nil, the default middlebutton menu is evaluated.
Number of arguments to the block can be 0 upto 4.
argument 1: nearest column to the click point
argument 2: the logical index (X)
argument 3: the distance y from the click point to the columns's graph
argument 4: physical y value
"
^ menuAccessBlock
!
menuAccessBlock:aBlockUpTo4Args
"action block which is performed if a menu is required; if the block returns
nil, the default middlebutton menu is evaluated.
Number of arguments to the block can be 0 upto 4.
argument 1: nearest column to the click point
argument 2: the logical index (X)
argument 3: the distance y from the click point to the columns's graph
argument 4: physical y value
"
menuAccessBlock:= aBlockUpTo4Args
! !
!GraphColumnView2D methodsFor:'accessing dimensions'!
gridExtent
"returns the x/y extent of the grid
"
^ gridX @ gridY
!
gridExtent:anExtent
"set the x/y extent of the grid
"
|gX gY|
anExtent isNil ifTrue:[
gX := gY := 0
] ifFalse:[
gX := (anExtent x) max:0.
gY := (anExtent y) max:0.
].
gridX == gX ifTrue:[
self gridY:gY
] ifFalse:[
gridY := gY.
self gridX:gX
]
!
gridX
"returns the horizontal size of the grid or 0 if the horizontal grid is disabled
"
^ gridX
!
gridX:aValue
"set the horizontal size of the grid or 0 if the horizontal grid should be invisible
"
|x|
x := self unsignedIntegerFrom:aValue onError:[gridX].
x ~~ gridX ifTrue:[
gridX := x.
self doRecomputeGraph.
]
!
gridY
"returns the vertical size of the grid or 0 if the vertical grid is disabled
"
^ gridY
!
gridY:aValue
"set the vertical size of the grid or 0 if the vertical grid should be invisible
"
|y|
y := self unsignedIntegerFrom:aValue onError:[gridY].
y ~~ gridY ifTrue:[
gridY := y.
self doRecomputeGraph
]
! !
!GraphColumnView2D methodsFor:'change & update'!
changedGraphIn:aColumn what:what from:oldValue
"the graph assigned to the column description changed
"
|widthC scaleY transY dataY stepX|
widthC := aColumn lineWidth.
scaleY := self scaleYofColumn:aColumn.
transY := self transYofColumn:aColumn.
stepX := self stepX.
dataY := self yDataForColumn:aColumn.
what == #lineWidth ifTrue:[
widthC < oldValue ifTrue:[widthC := oldValue]
ifFalse:[widthC := nil]
] ifFalse:[
(what ~~ #lineStyle or:[aColumn lineStyle == #solid]) ifTrue:[
widthC := nil
]
].
widthC notNil ifTrue:[
self drawGRX:0
step:stepX
scaleY:scaleY
transY:transY
ydata:dataY
with:bgColor
style:#solid
width:widthC.
what == #lineWidth ifTrue:[
^ self drawX:0 y:0 width:width height:height
]
].
self drawGRC:aColumn
x:0
step:stepX
scaleY:scaleY
transY:transY
ydata:dataY.
!
changedHLineIn:aColumn what:what from:oldValue
"the horizontal lines assigned to the column description changed
"
|widthC scaleY transY list|
widthC := aColumn hLineWidth.
scaleY := self scaleYofColumn:aColumn.
transY := self transYofColumn:aColumn.
what == #hLineList ifTrue:[
oldValue notNil ifTrue:[list := oldValue]
ifFalse:[widthC := nil].
] ifFalse:[
(list := aColumn hLineList) isNil ifTrue:[
^ self
].
what == #hLineWidth ifTrue:[
widthC < oldValue ifTrue:[widthC := oldValue]
ifFalse:[widthC := nil]
] ifFalse:[
(what ~~ #hLineStyle or:[aColumn hLineStyle == #solid]) ifTrue:[
widthC := nil
]
].
].
widthC notNil ifTrue:[
self drawHLN:list
x:0
y:0
toX:width
y:height
scaleY:scaleY
transY:transY
with:bgColor
style:#solid
width:widthC.
what ~~ #hLineStyle ifTrue:[
^ self drawX:0 y:0 width:width height:height
]
].
self drawHLC:aColumn
x:0
y:0
toX:width
y:height
scaleY:scaleY
transY:transY.
! !
!GraphColumnView2D methodsFor:'drawing'!
clearColumnAndRedraw:aColumn
"undraw a column and redraw the view without clearing the background
"
shown ifTrue:[
(self sensor hasDamageFor:self) ifTrue:[
self invalidate
] ifFalse:[
self undrawColumn:aColumn
scaleY:(self scaleYofColumn:aColumn)
transY:(self transYofColumn:aColumn)
]
]
!
redrawColumn:aColumn
"redraw a column including the horizontal lines
and the graph of the column
"
|transY scaleY stepX values|
(shown and:[aColumn shown]) ifTrue:[
scaleY := self scaleYofColumn:aColumn.
transY := self transYofColumn:aColumn.
stepX := self stepX.
self drawHLC:aColumn
x:0
y:0
toX:width
y:height
scaleY:scaleY
transY:transY.
self drawGRC:aColumn
x:0
step:stepX
scaleY:scaleY
transY:transY
ydata:(self yDataForColumn:aColumn)
]
!
redrawColumnAt:anIndex
"redraw a column at an index including the horizontal lines
and the graph of the column
"
self redrawColumn:(columns at:anIndex)
!
redrawX:x y:y width:w height:h
"clear and redraw
"
shown ifTrue:[
self paint:bgColor.
self fillRectangleX:x y:y width:w height:h.
self drawX:x y:y width:w height:h.
].
! !
!GraphColumnView2D methodsFor:'drawing basics'!
drawGRC:aColumn x:xStart step:xStep scaleY:yScale transY:yTrans ydata:yData
"draw a graph
"
self drawGRX:xStart
step:xStep
scaleY:yScale
transY:yTrans
ydata:yData
with:(self mapColor:(aColumn foregroundColor))
style:(aColumn lineStyle)
width:(aColumn lineWidth)
!
drawGRX:xStart step:xStep scaleY:yScale transY:yTrans ydata:ydata with:aColor style:aStyle width:aWidth
"draw a graph
"
self paint:aColor.
self lineStyle:aStyle.
self lineWidth:aWidth.
device displayLinesFromX:xStart
step:xStep
yValues:ydata
scaleY:yScale
transY:yTrans
in:drawableId
with:gcId.
self lineStyle:#solid.
self lineWidth:1.
!
drawHLC:aColumn x:x y:y toX:xMax y:yMax scaleY:yScale transY:yTrans
"draw horizontal lines derrived from column
"
|list|
(list := aColumn hLineList) notNil ifTrue:[
self drawHLN:list
x:x
y:y
toX:xMax
y:yMax
scaleY:yScale
transY:yTrans
with:(self mapColor:(aColumn hLineFgColor))
style:(aColumn hLineStyle)
width:(aColumn hLineWidth)
].
!
drawHLN:aList x:x y:y toX:xMax y:yMax scaleY:yScale transY:yTrans with:aColor style:aStyle width:aWidth
"draw horizontal lines derrived from list
"
self paint:aColor.
self lineStyle:aStyle.
self lineWidth:aWidth.
aList do:[:hY||dY|
dY := (hY * yScale + yTrans) rounded.
(dY < y or:[dY > yMax]) ifFalse:[
self displayLineFromX:x y:dY toX:xMax y:dY.
]
].
aStyle ~~ #solid ifTrue:[self lineStyle:#solid].
aWidth ~~ 1 ifTrue:[self lineWidth:1].
!
drawReferencesFromX:x0 y:y0 to:x1 y:y1
"redraw visible references
"
|x stepX refLines|
refLines := self listOfVisibleRefIndices.
refLines notEmpty ifTrue:[
stepX := self stepX.
self paint:referenceColor.
refLines do:[:anIndex|
x := (anIndex * stepX) rounded.
(x >= x0 and:[x <= x1]) ifTrue:[
self displayLineFromX:x y:y0 toX:x y:y1
]
]
].
!
drawX:x y:y width:w height:h
"redraw without clearing the background
"
|saveClip yValues xStep xStart yScale yTrans
xIndex "{ Class:SmallInteger }"
x0 "{ Class:SmallInteger }"
y0 "{ Class:SmallInteger }"
xMax "{ Class:SmallInteger }"
yMax "{ Class:SmallInteger }"
step "{ Class:SmallInteger }"
gstep "{ Class:SmallInteger }"
start "{ Class:SmallInteger }"
stop "{ Class:SmallInteger }"
|
xStep := self stepX.
xMax := x + w.
yMax := y + h.
x0 := x // xStep.
start := x0 + 1.
stop := (xMax // xStep + 2) min:windowSize.
start < stop ifFalse:[^ self].
saveClip := clipRect.
self clippingRectangle:(Rectangle left:x top:y width:w height:h).
showGrid ifTrue:[
self paint:gridColor.
gstep := self class gridStep.
"/ X-Grid
gridX ~~ 0 ifTrue:[
step := gridX * gstep.
x0 := (x // step) * step + gridXoffset.
[ x0 < xMax ] whileTrue:[
self displayLineFromX:x0 y:y toX:x0 y:yMax.
x0 := x0 + step.
]
].
"/ Y-Grid
gridY > 0 ifTrue:[
step := gridY * gstep.
y0 := (y // step) * step.
[ y0 < yMax ] whileTrue:[
self displayLineFromX:x y:y0 toX:xMax y:y0.
y0 := y0 + step
]
]
].
columns notNil ifTrue:[
xStart := start - 1 * xStep.
xIndex := start - 1 + graphOriginX.
yValues := Array new:(stop - start + 1).
"/ Column
columns do:[:aCol|
aCol shown ifTrue:[
yScale := self scaleYofColumn:aCol.
yTrans := self transYofColumn:aCol.
self drawHLC:aCol x:x y:y toX:xMax y:yMax scaleY:yScale transY:yTrans.
self drawGRC:aCol x:xStart step:xStep scaleY:yScale transY:yTrans
ydata:(aCol yValuesStartAt:xIndex into:yValues)
]
].
"/ V-Lines
self drawReferencesFromX:x y:y to:xMax y:yMax.
].
self clippingRectangle:saveClip.
!
undrawColumn:aColumn scaleY:scaleY transY:transY
"undraw a column, than redraw all without clearing the background
"
|stepX hlines|
stepX := self stepX.
(hlines := aColumn hLineList) notNil ifTrue:[
self drawHLN:hlines
x:0
y:0
toX:width
y:height
scaleY:scaleY
transY:transY
with:bgColor
style:#solid
width:(aColumn hLineWidth)
].
self drawGRX:0
step:stepX
scaleY:scaleY
transY:transY
ydata:(self yDataForColumn:aColumn)
with:bgColor
style:#solid
width:(aColumn lineWidth).
self drawX:0 y:0 width:width height:height
! !
!GraphColumnView2D methodsFor:'event handling'!
buttonMultiPress:button x:x y:y
"handle a button double click event
"
((button == 1) or:[button == #select]) ifFalse:[
^ super buttonMultiPress:button x:x y:y
].
self buttonPressBlock:doubleClickBlock x:x y:y
!
buttonPress:button x:x y:y
"handle a button press event
"
|menu|
((button == 2) or:[button == #menu]) ifTrue:[
menu := self buttonPressBlock:menuAccessBlock x:x y:y.
menu notNil ifTrue:[
^ menu startUp
]
] ifFalse:[
((button == 1) or:[button == #select]) ifTrue:[
^ self buttonPressBlock:actionBlock x:x y:y
]
].
super buttonPress:button x:x y:y
!
buttonPressBlock:aBlock x:x y:y
"evaluate the user defined block if not nil dependent on its required
arguments; the result of the block is returned
"
|numArgs desc index|
aBlock isNil ifTrue:[
^ nil
].
(numArgs := aBlock numArgs) == 0 ifTrue:[
^ aBlock value
].
(desc := self nearestColumnAtX:x y:y) isNil ifTrue:[
^ nil
].
index := self absoluteIndexOfX:x.
numArgs == 1 ifTrue:[ ^ aBlock value:(desc key) ].
numArgs == 2 ifTrue:[ ^ aBlock value:(desc key) value:index ].
numArgs == 3 ifTrue:[ ^ aBlock value:(desc key) value:index value:(desc value) ].
^ aBlock value:(desc key) value:index value:(desc value) value:y
!
buttonRelease:button x:x y:y
"handle a button release event
"
|numArgs|
buttonReleaseBlock isNil ifTrue:[
^ super buttonRelease:button x:x y:y
].
numArgs := buttonReleaseBlock numArgs.
numArgs == 0 ifTrue:[ ^ buttonReleaseBlock value ].
numArgs == 1 ifTrue:[ ^ buttonReleaseBlock value:x ].
numArgs == 2 ifTrue:[ ^ buttonReleaseBlock value:x value:y ].
buttonReleaseBlock value:x value:y value:(self absoluteIndexOfX:x)
! !
!GraphColumnView2D methodsFor:'initialize'!
initialize
"setup default values
"
super initialize.
gridXoffset := 0.
colorMap := Dictionary new.
gridX := 2.
gridY := 2.
!
unrealize
"clear colorMap
"
super unrealize.
colorMap := Dictionary new.
! !
!GraphColumnView2D methodsFor:'private'!
mapColor:aColor
"get the same color on the device. If the argument is
nil, the foreground color is returned.
"
|fg|
aColor isNil ifTrue:[
^ fgColor
].
(fg := colorMap at:aColor ifAbsent:nil) isNil ifTrue:[
colorMap at:aColor put:(fg := aColor on:device)
].
^ fg
!
yDataForColumn:aColumn
"returns collection of visible Y-data for a column
"
^ aColumn yValuesStartAt:graphOriginX into:(Array new:windowSize)
! !
!GraphColumnView2D methodsFor:'protocol'!
doRecomputeGraph
"called to recompute drawable objects and to set the graph to invalidate
"
gridXoffset := 0.
shown ifTrue:[
self invalidate.
]
!
updateColumns:what with:oldValue from:aColumn
"called if the list of columns changed
#size the size of the columns
#color: color changed
or a specific column:( aColumn notNil )
#insert: insert a new column
#remove: remove a column
or a specific attribute derived from the
changed column.
"
|colSY colZY colTY colRX|
shown ifFalse:[
^ self
].
(what == nil or:[self sensor hasDamageFor:self]) ifTrue:[
^ self invalidate
].
aColumn isNil ifTrue:[
^ self doRecomputeGraph
].
what == #insert: ifTrue:[ ^ self redrawColumn:aColumn ].
what == #remove: ifTrue:[ ^ self clearColumnAndRedraw:aColumn ].
what == #shown ifTrue:[
aColumn shown ifTrue:[self redrawColumn:aColumn]
ifFalse:[self clearColumnAndRedraw:aColumn].
^ self
].
aColumn shown ifFalse:[ ^ self ].
( what == #lineStyle
or:[what == #foregroundColor
or:[what == #lineWidth]]
) ifTrue:[
^ self changedGraphIn:aColumn what:what from:oldValue
].
( what == #hLineStyle
or:[what == #hLineFgColor
or:[what == #hLineWidth
or:[what == #hLineList ]]]
) ifTrue:[
^ self changedHLineIn:aColumn what:what from:oldValue
].
colSY := aColumn scaleY.
colZY := aColumn zoomY.
colTY := aColumn transY.
colRX := aColumn relativeXaxis.
what == #scaleY ifTrue:[ colSY := oldValue ] ifFalse:[
what == #transY ifTrue:[ colTY := oldValue ] ifFalse:[
what == #relativeXaxis ifTrue:[ colRX := oldValue ] ifFalse:[
what == #zoomY ifTrue:[ colZY := oldValue ] ifFalse:[ ^ self doRecomputeGraph ]]]].
self undrawColumn:aColumn
scaleY:(self absScaleY:colSY zoomY:colZY)
transY:(self absTransY:colTY
relativeTo:colRX
zoomY:colZY
).
!
updateOriginX:nIndices
"scroll left or right n x-steps. A positive value scrolls to the right
a negative value to the left.
"
|
x "{ Class:SmallInteger }"
w "{ Class:SmallInteger }"
gridDeltaX "{ Class:SmallInteger }"
|
x := (nIndices * self stepX) rounded.
w := width - (x abs).
"/ update offset X for the grid
(showGrid and:[gridX ~~ 0]) ifTrue:[
gridDeltaX := gridXoffset + x.
gridXoffset := gridDeltaX \\ (gridX * self class gridStep).
gridDeltaX < 0 ifTrue:[
gridXoffset := gridXoffset negated
].
].
"/ scrolling & redraw
x := x abs.
self catchExpose.
nIndices < 0 ifTrue:[ "/ scroll left
self copyFrom:self x:x y:0 toX:0 y:0 width:w height:height async:true.
self redrawX:w y:0 width:x height:height.
] ifFalse:[ "/ scroll right
self copyFrom:self x:0 y:0 toX:x y:0 width:w height:height async:true.
self redrawX:0 y:0 width:x height:height.
].
self waitForExpose.
!
updateReferences:what atRelX:relX
"called when the list of references changed.
#remove: the reference at the relative X index is removed
#insert: a reference is inserted at the relative X index
#size the list of references changed
#state visibility state changed
#color the foreground color changed
"
|x|
shown ifTrue:[
showReferences ifFalse:[
what == #state ifTrue:[
self doRecomputeGraph
]
] ifTrue:[
(what == #color or:[what == #state]) ifTrue:[
self drawReferencesFromX:0 y:0 to:width y:height
] ifFalse:[
(what == #insert: or:[what == #remove:]) ifTrue:[
x := (relX * self stepX) rounded.
what == #insert: ifTrue:[
self paint:referenceColor.
self displayLineFromX:x y:0 toX:x y:height
] ifFalse:[
self redrawX:x y:0 width:1 height:height
]
] ifFalse:[
self doRecomputeGraph
]
]
]
]
! !
!GraphColumnView2D methodsFor:'queries'!
absoluteIndexOfX:x
"returns the absolute X value for a visible x
"
^ (x // self stepX) + graphOriginX
!
nearestColumnAtX:x y:y
"returns an association containing the nearest column as key and the absolute y-distance
to the point x/y. If no columns exists nil is returned
"
|sX dX dtY data col
i0 "{ Class:SmallInteger }"
|
columns size == 0 ifTrue:[^ nil ].
col := nil.
sX := self stepX.
i0 := x // sX.
sX > 1 ifFalse:[
dX := 0
] ifTrue:[
(dX := x - (i0 * sX)) > 0.5 ifTrue:[dX := dX / sX]
ifFalse:[dX := 0]
].
i0 := (i0 + 1) min:windowSize.
(i0 < windowSize and:[dX ~= 0]) ifTrue:[data := Array new:2]
ifFalse:[data := Array new:1].
i0 := i0 + graphOriginX.
columns do:[:aCol||vlY scY trY yL yR|
aCol shown ifTrue:[
vlY := aCol yValuesStartAt:i0 into:data.
scY := self scaleYofColumn:aCol.
trY := self transYofColumn:aCol.
yL := vlY first * scY.
yR := vlY last * scY.
yL := (yL + trY + (yR - yL * dX)) rounded.
yR := (y - yL) abs.
(col isNil or:[dtY > yR]) ifTrue:[
dtY := yR.
col := aCol.
]
]
].
^ col notNil ifTrue:[Association key:col value:dtY] ifFalse:[nil]
! !
!GraphColumnView2D methodsFor:'transformations'!
absScaleY:aNumber zoomY:aZoomY
"returns y-scale for a scale Y and a zoom factor
"
^ (aNumber negated) * zoomY * aZoomY
!
absTransY:aNumber relativeTo:xAxis zoomY:aZoomY
"returns absolute transition Y for a number relative
to a x-axis
"
|zY|
zY := zoomY * aZoomY.
^ height * xAxis / zY + aNumber * zY
!
scaleYofColumn:aColumn
"returns current y-scale of a column on my view
"
^ (aColumn scaleY negated) * zoomY * (aColumn zoomY)
!
stepX
"returns width of X measured in pixels; no fraction returned
"
|x|
x := width / (windowSize - 1).
^ x isInteger ifTrue:[x] ifFalse:[x asFloat]
!
transYofColumn:aColumn
"returns current y-transition of a column on my view
"
^ self absTransY:(aColumn transY)
relativeTo:(aColumn relativeXaxis)
zoomY:(aColumn zoomY)
! !
!GraphColumnView2D methodsFor:'user interaction & notifications'!
doGridExtent:what
"change the grid extent factorial 2 (larger or smaller)
"
|ext|
ext := self gridExtent.
what == #larger ifTrue:[
ext := ext * 2
] ifFalse:[
what == #smaller ifFalse:[
^ self
].
ext := ext // 2.
(ext x == 0) ifTrue:[gridX ~~ 0 ifTrue:[ext x:1]].
(ext y == 0) ifTrue:[gridY ~~ 0 ifTrue:[ext y:1]].
].
self gridExtent:ext.
!
doGridStepX:aNumberOrSymbol
"change the grid step X
"
self gridX:(aNumberOrSymbol == #off ifFalse:[aNumberOrSymbol] ifTrue:[0])
!
doGridStepY:aNumberOrSymbol
"change the grid step Y
"
self gridY:(aNumberOrSymbol == #off ifFalse:[aNumberOrSymbol] ifTrue:[0])
! !
!GraphColumnView2D class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/libwidg2/GraphColumnView2D.st,v 1.3 1998-02-13 13:51:07 ca Exp $'
! !