1 files changed, 118 insertions, 0 deletions
diff --git a/src/graphui/classes/com/jogamp/graph/ui/layout/Alignment.java b/src/graphui/classes/com/jogamp/graph/ui/layout/Alignment.java
new file mode 100644
index 000000000..b43de332c
--- /dev/null
+++ b/src/graphui/classes/com/jogamp/graph/ui/layout/Alignment.java
@@ -0,0 +1,118 @@
+/**
+ * Copyright 2023 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package com.jogamp.graph.ui.layout;
+
+import java.util.List;
+
+/**
+ * Immutable layout alignment options, including {@link Bit#Fill}.
+ */
+public final class Alignment {
+    /** No alignment constant. */
+    public static final Alignment None = new Alignment();
+    /** {@link Bit#Center} alignment constant. */
+    public static final Alignment Center = new Alignment(Alignment.Bit.Center);
+    /** {@link Bit#Fill} alignment constant. */
+    public static final Alignment Fill = new Alignment(Alignment.Bit.Fill.value);
+
+    public enum Bit {
+        /** Left alignment. */
+        Left ( ( 1 << 0 ) ),
+
+        /** Right alignment. */
+        Right ( ( 1 << 1 ) ),
+
+        /** Bottom alignment. */
+        Bottom ( ( 1 << 2 ) ),
+
+        /** Top alignment. */
+        Top ( ( 1 << 8 ) ),
+
+        /** Center alignment. */
+        Center ( ( 1 << 9 ) ),
+
+        /** Scale object to parent size, e.g. fill {@link GridLayout} cell size. */
+        Fill ( ( 1 << 15 ) );
+
+        Bit(final int v) { value = v; }
+        public final int value;
+    }
+    public final int mask;
+
+    public static int getBits(final List<Bit> v) {
+        int res = 0;
+        for(final Bit b : v) {
+            res |= b.value;
+        }
+        return res;
+    }
+    public Alignment(final List<Bit> v) {
+        mask = getBits(v);
+    }
+    public Alignment(final Bit v) {
+        mask = v.value;
+    }
+    public Alignment(final int v) {
+        mask = v;
+    }
+    public Alignment() {
+        mask = 0;
+    }
+
+    public boolean isSet(final Bit bit) { return bit.value == ( mask & bit.value ); }
+    public boolean isSet(final List<Bit> bits) { final int bits_i = getBits(bits); return bits_i == ( mask & bits_i ); }
+    public boolean isSet(final int bits) { return bits == ( mask & bits ); }
+
+    @Override
+    public String toString() {
+        int count = 0;
+        final StringBuilder out = new StringBuilder();
+        for (final Bit dt : Bit.values()) {
+            if( isSet(dt) ) {
+                if( 0 < count ) { out.append(", "); }
+                out.append(dt.name()); count++;
+            }
+        }
+        if( 0 == count ) {
+            out.append("None");
+        } else if( 1 < count ) {
+            out.insert(0, "[");
+            out.append("]");
+        }
+        return out.toString();
+    }
+
+    @Override
+    public boolean equals(final Object other) {
+        if (this == other) {
+            return true;
+        }
+        return (other instanceof Alignment) &&
+               this.mask == ((Alignment)other).mask;
+    }
+}