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mod/PLibUI/LayoutSizes.cs

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+/*
+ * Copyright 2022 Peter Han
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+using System;
+using UnityEngine;
+
+namespace PeterHan.PLib.UI {
+	/// <summary>
+	/// A class representing the size sets of a particular component.
+	/// </summary>
+	internal struct LayoutSizes {
+		/// <summary>
+		/// The flexible dimension value.
+		/// </summary>
+		public float flexible;
+
+		/// <summary>
+		/// If true, this component should be ignored completely.
+		/// </summary>
+		public bool ignore;
+
+		/// <summary>
+		/// The minimum dimension value.
+		/// </summary>
+		public float min;
+
+		/// <summary>
+		/// The preferred dimension value.
+		/// </summary>
+		public float preferred;
+
+		/// <summary>
+		/// The source of these values.
+		/// </summary>
+		public readonly GameObject source;
+
+		internal LayoutSizes(GameObject source) : this(source, 0.0f, 0.0f, 0.0f) { }
+
+		internal LayoutSizes(GameObject source, float min, float preferred,
+				float flexible) {
+			ignore = false;
+			this.source = source;
+			this.flexible = flexible;
+			this.min = min;
+			this.preferred = preferred;
+		}
+
+		/// <summary>
+		/// Adds another set of layout sizes to this one.
+		/// </summary>
+		/// <param name="other">The size values to add.</param>
+		public void Add(LayoutSizes other) {
+			flexible += other.flexible;
+			min += other.min;
+			preferred += other.preferred;
+		}
+
+		/// <summary>
+		/// Enlarges this layout size, if necessary, using the values from another.
+		/// </summary>
+		/// <param name="other">The minimum size values to enforce.</param>
+		public void Max(LayoutSizes other) {
+			flexible = Math.Max(flexible, other.flexible);
+			min = Math.Max(min, other.min);
+			preferred = Math.Max(preferred, other.preferred);
+		}
+
+		public override string ToString() {
+			return string.Format("LayoutSizes[min={0:F2},preferred={1:F2},flexible={2:F2}]",
+				min, preferred, flexible);
+		}
+	}
+}