EditorWindow.OnSelectionChange()

Description

Called whenever the selection has changed.

Saves the current selection and load it later with a simple click.

#pragma strict
// Simple example that lets you save the current selection and load it.
private var selectionIDs: int[];
@MenuItem("Example/Selection Saver")
private static function Init() {
	var window: ExampleClass = ExampleClassGetWindow(ExampleClass);
	window.Show();
}
function OnGUI() {
	if (GUILayout.Button("Save"))
		SaveSelection();
	if (GUILayout.Button("Load"))
		LoadLastSavedSelection();
}
function OnSelectionChange() {
	selectionIDs = Selection.instanceIDs;
}
private function SaveSelection() {
	var saveStr: var = "";
	for (var i: int in selectionIDs) {
		saveStr += i.ToString() + ";";
	}
	saveStr = saveStr.TrimEnd(char.Parse(";"));
	EditorPrefs.SetString("SelectedIDs", saveStr);
}
private function LoadLastSavedSelection() {
	var strIDs: String[] = EditorPrefs.GetString("SelectedIDs").Split(char.Parse(";"));
	var ids: int[] = new int[strIDs.Length];
	for (var i: var = 0; i < strIDs.Length; i++)
		ids[i] = int.Parse(strIDs[i]);
	Selection.instanceIDs = ids;
}

// Simple example that lets you save the current selection and load it.
 
using UnityEngine;
using UnityEditor;
using System.Collections;
 
public class ExampleClass : EditorWindow {

	private int[] selectionIDs;
 
	[MenuItem ("Example/Selection Saver")]
 
	private static void Init() {
		ExampleClass window = (ExampleClass)GetWindow(typeof(ExampleClass));
		window.Show();
	}
 
	void OnGUI() {
		if(GUILayout.Button("Save"))
			SaveSelection();
		if(GUILayout.Button("Load"))
			LoadLastSavedSelection();
	}
 
	void OnSelectionChange() {
		selectionIDs = Selection.instanceIDs;
	}
 
	private void SaveSelection() {
		var saveStr = "";
		foreach(int i in selectionIDs) {
			saveStr += i.ToString() + ";";
		}
		saveStr = saveStr.TrimEnd(char.Parse(";"));
		EditorPrefs.SetString("SelectedIDs",saveStr);
	}
 
	private void LoadLastSavedSelection() {
		string[] strIDs = EditorPrefs.GetString("SelectedIDs").Split(char.Parse(";"));
 
		int[] ids = new int[strIDs.Length];
		for(var i = 0; i < strIDs.Length; i++)
			ids[i] = int.Parse(strIDs[i]);
		Selection.instanceIDs = ids;
	}
}