91 lines
3.0 KiB
C#
91 lines
3.0 KiB
C#
// Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
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using System;
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using System.Collections;
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using FlaxEditor.Scripting;
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using FlaxEngine;
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using FlaxEngine.Utilities;
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namespace FlaxEditor.CustomEditors.Editors
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{
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/// <summary>
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/// Default implementation of the inspector used to edit arrays.
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/// </summary>
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[CustomEditor(typeof(Array)), DefaultEditor]
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public class ArrayEditor : CollectionEditor
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{
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/// <inheritdoc />
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public override int Count => (Values[0] as Array)?.Length ?? 0;
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/// <inheritdoc />
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protected override IList Allocate(int size)
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{
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var arrayType = Values.Type;
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var elementType = arrayType.GetElementType();
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return TypeUtils.CreateArrayInstance(elementType, size);
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}
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/// <inheritdoc />
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protected override void Resize(int newSize)
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{
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var array = Values[0] as Array;
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var oldSize = array?.Length ?? 0;
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if (oldSize != newSize)
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{
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// Allocate new array
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var arrayType = Values.Type;
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var elementType = arrayType.GetElementType();
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var newValues = TypeUtils.CreateArrayInstance(elementType, newSize);
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var sharedCount = Mathf.Min(oldSize, newSize);
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if (array != null && sharedCount > 0)
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{
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// Copy old values
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Array.Copy(array, 0, newValues, 0, sharedCount);
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if (elementType.IsValueType || NotNullItems)
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{
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// Fill new entries with the last value
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for (int i = oldSize; i < newSize; i++)
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Array.Copy(array, oldSize - 1, newValues, i, 1);
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}
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else
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{
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// Initialize new entries with default values
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var defaultValue = TypeUtils.GetDefaultValue(elementType);
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for (int i = oldSize; i < newSize; i++)
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newValues.SetValue(defaultValue, i);
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}
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}
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else if (newSize > 0)
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{
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// Initialize new entries with default values
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var defaultValue = TypeUtils.GetDefaultValue(elementType);
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for (int i = 0; i < newSize; i++)
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newValues.SetValue(defaultValue, i);
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}
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SetValue(newValues);
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}
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}
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/// <inheritdoc />
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protected override IList CloneValues()
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{
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var array = Values[0] as Array;
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if (array == null)
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return null;
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var size = array.Length;
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var arrayType = Values.Type;
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var elementType = arrayType.GetElementType();
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var cloned = TypeUtils.CreateArrayInstance(elementType, size);
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Array.Copy(array, 0, cloned, 0, size);
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return cloned;
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}
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}
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}
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