Remove AttrIcon from Box implementation

internal/system/box.go

@@ -27,15 +27,12 @@ type box struct {
 	focusQueued *bool
 
 	attrColor       attrHierarchy[tomo.AttrColor]
-	attrIcon        attrHierarchy[tomo.AttrIcon]
 	attrTexture     attrHierarchy[tomo.AttrTexture]
 	attrTextureMode attrHierarchy[tomo.AttrTextureMode]
 	attrBorder      attrHierarchy[tomo.AttrBorder]
 	attrMinimumSize attrHierarchy[tomo.AttrMinimumSize]
 	attrPadding     attrHierarchy[tomo.AttrPadding]
 
-	icon canvas.Texture
-
 	dndData   data.Data
 	dndAccept []data.Mime
 	focusable bool
@@ -195,11 +192,6 @@ func (this *box) setAttr (attr tomo.Attr, user bool) {
 			this.invalidateDraw()
 		}
 		
-	case tomo.AttrIcon:
-		if this.attrIcon.Set(attr, user) {
-			this.handleIconChange()
-		}
-		
 	case tomo.AttrTexture:
 		if this.attrTexture.Set(attr, user) {
 			this.invalidateDraw()
@@ -235,11 +227,6 @@ func (this *box) unsetAttr (kind tomo.AttrKind, user bool) {
 			this.invalidateDraw()
 		}
 		
-	case tomo.AttrKindIcon:
-		if this.attrIcon.Unset(user) {
-			this.handleIconChange()
-		}
-		
 	case tomo.AttrKindTexture:
 		if this.attrTexture.Unset(user) {
 			this.invalidateDraw()
@@ -438,11 +425,6 @@ func (this *box) Draw (can canvas.Canvas) {
 	if textureMode == tomo.TextureModeCenter && texture != nil {
 		this.centeredTexture(can, texture)
 	}
-
-	// centered icon
-	if this.icon != nil {
-		this.centeredTexture(can, this.icon)
-	}
 }
 
 func (this *box) centeredTexture (can canvas.Canvas, texture canvas.Texture) {
@@ -600,15 +582,6 @@ func (this *box) handleBorderChange (previousBorderSum tomo.Inset, different boo
 	}
 }
 
-func (this *box) handleIconChange () {
-	this.icon = nil
-	hierarchy := this.getHierarchy()
-	if hierarchy == nil { return }	
-	icon := this.attrIcon.Value()
-	if icon.Icon == tomo.IconUnknown { return }
-	this.icon = hierarchy.getIconSet().Icon(icon.Icon, icon.Size)
-}
-
 func (this *box) invalidateStyle () {
 	hierarchy := this.getHierarchy()
 	if hierarchy == nil { return }
@@ -635,7 +608,8 @@ func (this *box) invalidateMinimum () {
 }
 
 func (this *box) recursiveReApply () {
-	if this.getHierarchy() == nil { return }
+	hierarchy := this.getHierarchy()
+	if hierarchy == nil { return }
 	
 	// re-apply styling, icons *if needed*
 
@@ -647,7 +621,7 @@ func (this *box) recursiveReApply () {
 		// information about the boxes they're linked to (like all rules
 		// with a matching role).
 		this.lastStyleNonce = hierarchyStyleNonce
-		this.styleApplicator = this.getHierarchy().newStyleApplicator()
+		this.styleApplicator = hierarchy.newStyleApplicator()
 		this.invalidateStyle()
 		this.on.styleChange.Broadcast()
 	}