Refactor out Camera.Parameters.

Change-Id: Ibc1ddac509381530e887b7491069e6367e9a6088

1 files changed, 151 insertions, 0 deletions

diff --git a/camera2/portability/src/com/android/ex/camera2/portability/Size.java b/camera2/portability/src/com/android/ex/camera2/portability/Size.java
new file mode 100644
index 0000000..9ae21aa
--- /dev/null
+++ b/camera2/portability/src/com/android/ex/camera2/portability/Size.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * 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 com.android.ex.camera2.portability;
+
+import android.graphics.Point;
+import android.hardware.Camera;
+import android.text.TextUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * An immutable simple size container.
+ */
+public class Size {
+    public static final String DELIMITER = ",";
+
+    /**
+     * An helper method to build a list of this class from a list of
+     * {@link android.hardware.Camera.Size}.
+     *
+     * @param cameraSizes Source.
+     * @return The built list.
+     */
+    public static List<Size> buildListFromCameraSizes(List<Camera.Size> cameraSizes) {
+        ArrayList<Size> list = new ArrayList<Size>(cameraSizes.size());
+        for (Camera.Size cameraSize : cameraSizes) {
+            list.add(new Size(cameraSize));
+        }
+        return list;
+    }
+
+    /**
+     * Encode List of this class as comma-separated list of integers.
+     *
+     * @param sizes List of this class to encode.
+     * @return encoded string.
+     */
+    public static String listToString(List<Size> sizes) {
+        ArrayList<Integer> flatSizes = new ArrayList<>();
+        for (Size s : sizes) {
+            flatSizes.add(s.width());
+            flatSizes.add(s.height());
+        }
+        return TextUtils.join(DELIMITER, flatSizes);
+    }
+
+    /**
+     * Decode comma-separated even-length list of integers into a List of this class.
+     *
+     * @param encodedSizes encoded string.
+     * @return List of this class.
+     */
+    public static List<Size> stringToList(String encodedSizes) {
+        String[] flatSizes = TextUtils.split(encodedSizes, DELIMITER);
+        ArrayList<Size> list = new ArrayList<>();
+        for (int i = 0; i < flatSizes.length; i += 2) {
+            int width = Integer.parseInt(flatSizes[i]);
+            int height = Integer.parseInt(flatSizes[i + 1]);
+            list.add(new Size(width,height));
+        }
+        return list;
+    }
+
+    private final Point val;
+
+    /**
+     * Constructor.
+     */
+    public Size(int width, int height) {
+        val = new Point(width, height);
+    }
+
+    /**
+     * Copy constructor.
+     */
+    public Size(Size other) {
+        if (other == null) {
+            val = new Point(0, 0);
+        } else {
+            val = new Point(other.width(), other.height());
+        }
+    }
+
+    /**
+     * Constructor from a source {@link android.hardware.Camera.Size}.
+     *
+     * @param other The source size.
+     */
+    public Size(Camera.Size other) {
+        if (other == null) {
+            val = new Point(0, 0);
+        } else {
+            val = new Point(other.width, other.height);
+        }
+    }
+
+    /**
+     * Constructor from a source {@link android.graphics.Point}.
+     *
+     * @param p The source size.
+     */
+    public Size(Point p) {
+        if (p == null) {
+            val = new Point(0, 0);
+        } else {
+            val = new Point(p);
+        }
+    }
+
+    public int width() {
+        return val.x;
+    }
+
+    public int height() {
+        return val.y;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o instanceof Size) {
+            Size other = (Size) o;
+            return val.equals(other.val);
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return val.hashCode();
+    }
+
+    @Override
+    public String toString() {
+        return "Size: (" + this.width() + " x " + this.height() + ")";
+    }
+}