Restructure things to fit upcoming diff

2016-07-25 15:48:39 +01:00
parent 667106e423
commit 93809b69c8
86 changed files with 0 additions and 0 deletions
--- a/java/csharp/Facebook.CSSLayout/CSSLayout.cs
+++ b/java/csharp/Facebook.CSSLayout/CSSLayout.cs
@@ -0,0 +1,89 @@
+/**
+ * Copyright (c) 2014, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+namespace Facebook.CSSLayout
+{
+
+    /**
+     * Where the output of {@link LayoutEngine#layoutNode(CSSNode, float)} will go in the CSSNode.
+     */
+
+    class CSSLayout
+    {
+        // This value was chosen based on empiracle data. Even the most complicated
+        // layouts should not require more than 16 entries to fit within the cache.
+        public const int MAX_CACHED_RESULT_COUNT = 16;
+
+        public const int POSITION_LEFT = 0;
+        public const int POSITION_TOP = 1;
+        public const int POSITION_RIGHT = 2;
+        public const int POSITION_BOTTOM = 3;
+
+        public const int DIMENSION_WIDTH = 0;
+        public const int DIMENSION_HEIGHT = 1;
+
+        public float[] position = new float[4];
+        public float[] dimensions = {
+            CSSConstants.Undefined,
+            CSSConstants.Undefined
+        };
+        public CSSDirection direction = CSSDirection.LTR;
+
+        public float flexBasis;
+
+        public int generationCount;
+        public CSSDirection? lastParentDirection;
+
+        public int nextCachedMeasurementsIndex;
+        public CSSCachedMeasurement[] cachedMeasurements = new CSSCachedMeasurement[MAX_CACHED_RESULT_COUNT];
+        public float[] measuredDimensions = {
+            CSSConstants.Undefined,
+            CSSConstants.Undefined
+        };
+
+        public CSSCachedMeasurement cachedLayout = new CSSCachedMeasurement();
+
+        public void resetResult()
+        {
+            FillArray(position, 0);
+            FillArray(dimensions, CSSConstants.Undefined);
+
+            direction = CSSDirection.LTR;
+
+            flexBasis = 0;
+
+            generationCount = 0;
+            lastParentDirection = null;
+
+            nextCachedMeasurementsIndex = 0;
+            measuredDimensions[DIMENSION_WIDTH] = CSSConstants.Undefined;
+            measuredDimensions[DIMENSION_HEIGHT] = CSSConstants.Undefined;
+
+            cachedLayout.widthMeasureMode = null;
+            cachedLayout.heightMeasureMode = null;
+        }
+
+        public override string ToString()
+        {
+            return "layout: {" +
+                    "left: " + position[POSITION_LEFT] + ", " +
+                    "top: " + position[POSITION_TOP] + ", " +
+                    "width: " + dimensions[DIMENSION_WIDTH] + ", " +
+                    "height: " + dimensions[DIMENSION_HEIGHT] + ", " +
+                    "direction: " + direction +
+                    "}";
+        }
+
+        static void FillArray<T>(T[] array, T value)
+        {
+            for (var i = 0; i != array.Length; ++i)
+                array[i] = value;
+        }
+    }
+}