Move Colour to utils.

Change-Id: I73c10f367e5972031d1c9b0871c4cb9043008bec
Reviewed-on: http://gerrit.dmdirc.com/3858
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>

src/com/dmdirc/util/colours/Colour.java

@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2006-2014 DMDirc Developers
+ *
+ * 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.
+ */
+
+package com.dmdirc.util.colours;
+
+/**
+ * A colour represented by an RGB triple. This implementation is immutable.
+ */
+public class Colour {
+
+    /** The colour white. */
+    public static final Colour WHITE = new Colour(255, 255, 255);
+    /** The colour light gray. */
+    public static final Colour LIGHT_GRAY = new Colour(192, 192, 192);
+    /** The colour gray. */
+    public static final Colour GRAY = new Colour(128, 128, 128);
+    /** The colour dark gray. */
+    public static final Colour DARK_GRAY = new Colour(64, 64, 64);
+    /** The colour black. */
+    public static final Colour BLACK = new Colour(0, 0, 0);
+    /** The colour red. */
+    public static final Colour RED = new Colour(255, 0, 0);
+    /** The colour pink. */
+    public static final Colour PINK = new Colour(255, 175, 175);
+    /** The colour orange. */
+    public static final Colour ORANGE = new Colour(255, 200, 0);
+    /** The colour yellow. */
+    public static final Colour YELLOW = new Colour(255, 255, 0);
+    /** The colour green. */
+    public static final Colour GREEN = new Colour(0, 255, 0);
+    /** The colour magenta. */
+    public static final Colour MAGENTA = new Colour(255, 0, 255);
+    /** The colour cyan. */
+    public static final Colour CYAN = new Colour(0, 255, 255);
+    /** The colour blue. */
+    public static final Colour BLUE = new Colour(0, 0, 255);
+    /** The intensity of the red component of this colour (0-255). */
+    private final int red;
+    /** The intensity of the green component of this colour (0-255). */
+    private final int green;
+    /** The intensity of the blue component of this colour (0-255). */
+    private final int blue;
+
+    /**
+     * Creates a new Colour instance with the given RGB values.
+     *
+     * @param red   The intensity of the red component of the colour (0-255).
+     * @param green The intensity of the green component of the colour (0-255).
+     * @param blue  The intensity of the blue component of the colour (0-255).
+     */
+    public Colour(final int red, final int green, final int blue) {
+        this.red = red;
+        this.green = green;
+        this.blue = blue;
+    }
+
+    /**
+     * Gets the intensity of the blue component of this colour.
+     *
+     * @return The intensity on a scale of 0-255.
+     */
+    public int getBlue() {
+        return blue;
+    }
+
+    /**
+     * Gets the intensity of the green component of this colour.
+     *
+     * @return The intensity on a scale of 0-255.
+     */
+    public int getGreen() {
+        return green;
+    }
+
+    /**
+     * Gets the intensity of the red component of this colour.
+     *
+     * @return The intensity on a scale of 0-255.
+     */
+    public int getRed() {
+        return red;
+    }
+
+    @Override
+    public boolean equals(final Object obj) {
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+
+        final Colour other = (Colour) obj;
+
+        return this.red == other.getRed() && this.green == other.getGreen()
+                && this.blue == other.getBlue();
+    }
+
+    @Override
+    public int hashCode() {
+        int hash = 7;
+        hash = 37 * hash + this.red;
+        hash = 37 * hash + this.green;
+        hash = 37 * hash + this.blue;
+        return hash;
+    }
+
+}

src/com/dmdirc/util/colours/ColourUtils.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2006-2014 DMDirc Developers
+ *
+ * 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.
+ */
+
+package com.dmdirc.util.colours;
+
+/**
+ * Some util methods for dealing with colours.
+ */
+public class ColourUtils {
+
+    private ColourUtils() {
+        //Do not instantiate.
+    }
+
+    /**
+     * Retrieves the hex representation of the specified colour.
+     *
+     * @param colour The colour to be parsed
+     *
+     * @return A 6-digit hex string representing the colour
+     */
+    public static String getHex(final Colour colour) {
+        final int r = colour.getRed();
+        final int g = colour.getGreen();
+        final int b = colour.getBlue();
+
+        return toHex(r) + toHex(g) + toHex(b);
+    }
+
+    /**
+     * Converts the specified integer (in the range 0-255) into a hex string.
+     *
+     * @param value The integer to convert
+     *
+     * @return A 2 char hex string representing the specified integer
+     */
+    private static String toHex(final int value) {
+        final String hex = Integer.toHexString(value);
+        return (hex.length() < 2 ? "0" : "") + hex;
+    }
+}