From 5a8833738cd2fd996962b2040a016114e302b496 Mon Sep 17 00:00:00 2001
From: bkuker <bkuker@billkuker.com>
Date: Thu, 13 Dec 2012 13:32:43 -0500
Subject: [PATCH] Allow batching several changes before firing a changeEvent

---
 .../sf/openrocket/appearance/AppearanceBuilder.java  | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/core/src/net/sf/openrocket/appearance/AppearanceBuilder.java b/core/src/net/sf/openrocket/appearance/AppearanceBuilder.java
index 2341908ec..cfb95f636 100644
--- a/core/src/net/sf/openrocket/appearance/AppearanceBuilder.java
+++ b/core/src/net/sf/openrocket/appearance/AppearanceBuilder.java
@@ -26,6 +26,8 @@ public class AppearanceBuilder extends AbstractChangeSource {
 	private double rotation;
 	private String image;
 	private Decal.EdgeMode edgeMode;
+	
+	private boolean batch;
 
 	public AppearanceBuilder() {
 		resetToDefaults();
@@ -217,7 +219,15 @@ public class AppearanceBuilder extends AbstractChangeSource {
 
 	@Override
 	protected void fireChangeEvent() {
-		super.fireChangeEvent();
+		if ( !batch )
+			super.fireChangeEvent();
+	}
+
+	public void batch(Runnable r){
+		batch = true;
+		r.run();
+		batch = false;
+		fireChangeEvent();
 	}
 
 }