Remove debug message

internal/system/box.go

@@ -69,6 +69,7 @@ func (this *System) newBox (outer anyBox) *box {
 		system:  this,
 		outer:   outer,
 		drawer:  outer,
+		tags:    make(util.Set[string]),
 	}
 	box.canvas = util.NewMemo (func () canvas.Canvas {
 		if box.parent == nil { return nil }
@@ -483,9 +484,6 @@ func (this *box) calculateMinimumSize () image.Point {
 		minSize.Y = userMinSize.Y
 	}
 	
-	if this.parent != nil {
-		this.parent.notifyMinimumSizeChange(this)
-	}
 	return minSize
 }
 
@@ -512,7 +510,7 @@ func (this *box) doLayout () {
 }
 
 func (this *box) doStyle () {
-	this.styleApplicator.apply(this)
+	this.styleApplicator.apply(this.outer)
 }
 
 func (this *box) setParent (parent parent) {
@@ -563,6 +561,9 @@ func (this *box) invalidateDraw () {
 
 func (this *box) invalidateMinimum () {
 	this.minSize.Invalidate()
+	if this.parent != nil {
+		this.parent.notifyMinimumSizeChange(this)
+	}
 }
 
 func (this *box) recursiveReApply () {
@@ -614,7 +615,8 @@ func (this *box) propagateAlt (callback func (anyBox) bool) bool {
 func (this *box) transparent () bool {
 	// TODO uncomment once we have
 	// a way to detect texture transparency
-	return util.Transparent(this.attrColor.Value()) /*&&
+	col := this.attrColor.Value().Color
+	return col == nil || util.Transparent(col) /*&&
 		(this.texture == nil || !this.texture.Opaque())*/
 }
 

internal/system/containerbox.go

@@ -20,7 +20,6 @@ type containerBox struct {
 	attrLayout   attrHierarchy[tomo.AttrLayout]
 
 	children []anyBox
-	layout   tomo.Layout
 
 	on struct {
 		contentBoundsChange event.FuncBroadcaster
@@ -187,19 +186,21 @@ func (this *containerBox) setAttr (attr tomo.Attr, user bool) {
 }
 
 func (this *containerBox) recommendedHeight (width int) int {
-	if this.layout == nil || this.attrOverflow.Value().Y {
+	layout := this.attrLayout.Value().Layout
+	if layout == nil || this.attrOverflow.Value().Y {
 		return this.minSize.Value().Y
 	} else {
-		return this.layout.RecommendedHeight(this.layoutHints(), this.boxQuerier(), width) +
+		return layout.RecommendedHeight(this.layoutHints(), this.boxQuerier(), width) +
 			this.borderAndPaddingSum().Vertical()
 	}
 }
 
 func (this *containerBox) recommendedWidth (height int) int {
-	if this.layout == nil || this.attrOverflow.Value().X {
+	layout := this.attrLayout.Value().Layout
+	if layout == nil || this.attrOverflow.Value().X {
 		return this.minSize.Value().X
 	} else {
-		return this.layout.RecommendedWidth(this.layoutHints(), this.boxQuerier(), height) +
+		return layout.RecommendedWidth(this.layoutHints(), this.boxQuerier(), height) +
 			this.borderAndPaddingSum().Horizontal()
 	}
 }
@@ -274,8 +275,9 @@ func (this *containerBox) layoutHints () tomo.LayoutHints {
 func (this *containerBox) contentMinimum () image.Point {
 	overflow := this.attrOverflow.Value()
 	minimum  := this.box.contentMinimum()
-	if this.layout != nil {
+	layout := this.attrLayout.Value().Layout
-		layoutMinimum := this.layout.MinimumSize (
+	if layout != nil {
+		layoutMinimum := layout.MinimumSize (
 			this.layoutHints(),
 			this.boxQuerier())
 		if overflow.X { layoutMinimum.X = 0 }
@@ -288,12 +290,13 @@ func (this *containerBox) contentMinimum () image.Point {
 func (this *containerBox) doLayout () {
 	this.box.doLayout()
 	previousContentBounds := this.contentBounds
+	layout := this.attrLayout.Value().Layout
 
 	// by default, use innerBounds (translated to 0, 0) for contentBounds.
 	// if a direction overflows, use the layout's minimum size for it.
 	var minimum image.Point
-	if this.layout != nil {
+	if layout != nil {
-		minimum = this.layout.MinimumSize (
+		minimum = layout.MinimumSize (
 			this.layoutHints(),
 			this.boxQuerier())
 	}
@@ -304,10 +307,10 @@ func (this *containerBox) doLayout () {
 	if overflow.Y { this.contentBounds.Max.Y = this.contentBounds.Min.Y + minimum.Y }
 	
 	// arrange children
-	if this.layout != nil {
+	if layout != nil {
 		layoutHints := this.layoutHints()
 		layoutHints.Bounds = this.contentBounds
-		this.layout.Arrange(layoutHints, this.boxArranger())
+		layout.Arrange(layoutHints, this.boxArranger())
 	}
 
 	// build an accurate contentBounds by unioning the bounds of all child
@@ -323,7 +326,7 @@ func (this *containerBox) doLayout () {
 
 	// offset children and contentBounds by scroll
 	for _, box := range this.children {
-		assertAnyBox(box).setBounds(box.Bounds().Add(this.scroll).Add(innerBounds.Min))
+		box.setBounds(box.Bounds().Add(this.scroll).Add(innerBounds.Min))
 	}
 	this.contentBounds = this.contentBounds.Add(this.scroll)
 	

internal/system/hierarchy.go

@@ -341,15 +341,21 @@ func (this *Hierarchy) drawBackgroundPart (canvas.Canvas) {
 	// if so, windows should be transparent if the color has transparency
 }
 
+// var minimumSizeCount = 0
 func (this *Hierarchy) doMinimumSize () {
 	this.minimumClean = true
+	// println("doMinimumSize", minimumSizeCount)
+	// minimumSizeCount ++
 
+	previousMinimumSize := this.minimumSize
 	this.minimumSize = image.Point { }
 	if this.root != nil {
 		this.minimumSize = this.root.minimumSize()
 	}
 
+	if previousMinimumSize != this.minimumSize {
 		this.link.NotifyMinimumSizeChange()
+	}
 }
 
 func (this *Hierarchy) newStyleApplicator () *styleApplicator {

internal/system/style.go

@@ -5,20 +5,21 @@ import "git.tebibyte.media/tomo/tomo"
 type styleApplicator struct {
 	style *tomo.Style
 	role  tomo.Role
-	rules []*tomo.Rule
+	rules []tomo.Rule
 }
 
 func (this *styleApplicator) apply (box anyBox) {
 	if box.Role() != this.role {
+		this.role = box.Role()
 		// the role has changed, so re-cache the list of rules
-		this.rules = make([]*tomo.Rule, 4)
+		this.rules = nil
 		for _, rule := range this.style.Rules {
 			role := box.Role()
 			// blank fields match anything
 			if rule.Role.Package == "" { role.Package = "" }
 			if rule.Role.Object  == "" { role.Object  = "" }
 			if rule.Role == role {
-				this.rules = append(this.rules, &rule)
+				this.rules = append(this.rules, rule)
 			}
 		}
 	}

internal/system/textbox.go

@@ -109,10 +109,10 @@ func (this *textBox) Draw (can canvas.Canvas) {
 	if col == nil { col = color.Transparent }
 	
 	this.drawBorders(can)
+	
 	pen := can.Pen()
 	pen.Fill(col)
 	pen.Texture(texture)
-	
 	if this.transparent() && this.parent != nil {
 		this.parent.drawBackgroundPart(can)
 	}
@@ -150,12 +150,16 @@ func (this *textBox) setAttr (attr tomo.Attr, user bool) {
 		
 	case tomo.AttrWrap:
 		if this.attrWrap.Set(attr, user) {
+			this.drawer.SetWrap(bool(attr))
 			this.invalidateMinimum()
 			this.invalidateLayout()
 		}
 		
 	case tomo.AttrAlign:
 		if this.attrAlign.Set(attr, user) {
+			this.drawer.SetAlign (
+				typeset.Align(attr.X),
+				typeset.Align(attr.Y))
 			this.invalidateDraw()
 		}
 		

internal/util/util.go

@@ -83,6 +83,7 @@ func NewMemo[T any] (update func () T) Memo[T] {
 func (this *Memo[T]) Value () T {
 	if !this.valid {
 		this.cache = this.update()
+		this.valid = true
 	}
 	return this.cache
 }