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Assets/CoolapeFrame/3rd/NGUI_Enhance/Scripts/Tweening/TweenWidth.cs

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+//----------------------------------------------
+//            NGUI: Next-Gen UI kit
+// Copyright © 2011-2015 Tasharen Entertainment
+//----------------------------------------------
+
+using UnityEngine;
+
+/// <summary>
+/// Tween the widget's size.
+/// </summary>
+
+[RequireComponent(typeof(UIWidget))]
+[AddComponentMenu("NGUI/Tween/Tween Width")]
+public class TweenWidth : UITweener
+{
+	public int from = 100;
+	public int to = 100;
+	public bool updateTable = false;
+
+	UIWidget mWidget;
+	UITable mTable;
+
+	public UIWidget cachedWidget { get { if (mWidget == null) mWidget = GetComponent<UIWidget>(); return mWidget; } }
+
+	[System.Obsolete("Use 'value' instead")]
+	public int width { get { return this.value; } set { this.value = value; } }
+
+	/// <summary>
+	/// Tween's current value.
+	/// </summary>
+
+	public int value { get { return cachedWidget.width; } set { cachedWidget.width = value; } }
+
+	/// <summary>
+	/// Tween the value.
+	/// </summary>
+
+	protected override void OnUpdate (float factor, bool isFinished)
+	{
+		value = Mathf.RoundToInt(from * (1f - factor) + to * factor);
+
+		if (updateTable)
+		{
+			if (mTable == null)
+			{
+				mTable = NGUITools.FindInParents<UITable>(gameObject);
+				if (mTable == null) { updateTable = false; return; }
+			}
+			mTable.repositionNow = true;
+		}
+	}
+
+	/// <summary>
+	/// Start the tweening operation.
+	/// </summary>
+
+	static public TweenWidth Begin (UIWidget widget, float duration, int width)
+	{
+		TweenWidth comp = UITweener.Begin<TweenWidth>(widget.gameObject, duration);
+		comp.from = widget.width;
+		comp.to = width;
+
+		if (duration <= 0f)
+		{
+			comp.Sample(1f, true);
+			comp.enabled = false;
+		}
+		return comp;
+	}
+
+	[ContextMenu("Set 'From' to current value")]
+	public override void SetStartToCurrentValue () { from = value; }
+
+	[ContextMenu("Set 'To' to current value")]
+	public override void SetEndToCurrentValue () { to = value; }
+
+	[ContextMenu("Assume value of 'From'")]
+	void SetCurrentValueToStart () { value = from; }
+
+	[ContextMenu("Assume value of 'To'")]
+	void SetCurrentValueToEnd () { value = to; }
+}