[LIB-9] Add functional for build image chess diagrams

[chesshog.git] / src / main / java / org / hedgecode / chess / img / board / SquarePair.java

diff --git a/src/main/java/org/hedgecode/chess/img/board/SquarePair.java b/src/main/java/org/hedgecode/chess/img/board/SquarePair.java
new file mode 100644 (file)
index 0000000..836d273
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+++ b/src/main/java/org/hedgecode/chess/img/board/SquarePair.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2018-2019. Developed by Hedgecode.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.hedgecode.chess.img.board;
+
+import java.awt.image.BufferedImage;
+import java.util.Objects;
+
+/**
+ *
+ *
+ * @author Dmitry Samoshin aka gotty
+ */
+public class SquarePair<T> {
+
+    private final T dark;
+    private final T light;
+
+    SquarePair(T dark, T light) {
+        this.dark = dark;
+        this.light = light;
+    }
+
+    public T getDark() {
+        return dark;
+    }
+
+    public T getLight() {
+        return light;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (!(o instanceof SquarePair)) {
+            return false;
+        }
+        SquarePair<?> that = (SquarePair<?>) o;
+
+        return Objects.equals(this.dark, that.dark)
+                && Objects.equals(this.light, that.light);
+    }
+
+    @Override
+    public int hashCode() {
+        return (dark == null ? 0 : dark.hashCode())
+                ^ (light == null ? 0 : light.hashCode());
+    }
+
+    public static SquarePair<BufferedImage> create(BufferedImage dark, BufferedImage light) {
+        return new SquarePair<>(dark, light);
+    }
+
+}