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SelectionModel fixed

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barsdeveloper
2021-10-01 20:07:09 +02:00
parent 01c3147baa
commit 44355afa3e
6 changed files with 236 additions and 142 deletions
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46
js/OrderedIndexArray.js
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@@ -8,7 +8,7 @@ export default class OrderedIndexArray {
this.array = new Uint32Array(value)
this.comparisonValueSupplier = comparisonValueSupplier
this.length = 0
this.current = 0
this.currentPosition = 0
}
/**
@@ -47,20 +47,17 @@ export default class OrderedIndexArray {
return l
}
currentIsInside() {
return this.current > 0 && this.current < this.array.length
}
/**
* Inserts the element in the array.
* @param array {number[]} The array to insert into.
* @param value {number} The value to insert into the array.
* @param element {number} The value to insert into the array.
* @returns {number} The position into occupied by value into the array.
*/
insert(element, comparisonValue = null) {
let position = this.getPosition(element)
if (position < this.current || comparisonValue != null && position == this.current && this.comparisonValueSupplier(element) < comparisonValue) {
++this.current
let position = this.getPosition(this.comparisonValueSupplier(element))
if (
position < this.currentPosition
|| comparisonValue != null && position == this.currentPosition && this.comparisonValueSupplier(element) < comparisonValue) {
++this.currentPosition
}
let newArray = new Uint32Array(this.array.length + 1)
newArray.set(this.array.subarray(0, position), 0)
@@ -76,7 +73,7 @@ export default class OrderedIndexArray {
* @param {number} value The value of the element to be remove.
*/
remove(element) {
let position = this.getPosition(element)
let position = this.getPosition(this.comparisonValueSupplier(element))
if (this.array[position] == element) {
this.removeAt(position)
}
@@ -87,27 +84,42 @@ export default class OrderedIndexArray {
* @param {number} position The index of the element to be remove.
*/
removeAt(position) {
if (position < this.current) {
--this.current
if (position < this.currentPosition) {
--this.currentPosition
}
let newArray = new Uint32Array(this.array.length - 1)
newArray.set(this.array.subarray(0, position), 0)
newArray.set(this.array.subarray(position + 1), position)
this.array = newArray
this.length = this.array.length
return position
}
getNext() {
if (this.current >= 0 && this.current < this.array.length) {
return this.comparisonValueSupplier(this.get(this.current))
if (this.currentPosition >= 0 && this.currentPosition < this.array.length) {
return this.get(this.currentPosition)
}
return null
}
getNextValue() {
if (this.currentPosition >= 0 && this.currentPosition < this.array.length) {
return this.comparisonValueSupplier(this.get(this.currentPosition))
} else {
return Number.MAX_SAFE_INTEGER
}
}
getPrev() {
if (this.current > 0) {
return this.comparisonValueSupplier(this.get(this.current - 1))
if (this.currentPosition > 0) {
return this.get(this.currentPosition - 1)
}
return null
}
getPrevValue() {
if (this.currentPosition > 0) {
return this.comparisonValueSupplier(this.get(this.currentPosition - 1))
} else {
return Number.MIN_SAFE_INTEGER
}