Mercurial > projects > dwt2
view org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/graphics/RGB.d @ 112:9f4c18c268b2
Update to compile and execute with dmd 2.052.
author | kntroh |
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date | Wed, 16 Mar 2011 21:53:53 +0900 |
parents | b98647bc0aef |
children | 536e43f63c81 |
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/******************************************************************************* * Copyright (c) 2000, 2008 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module org.eclipse.swt.graphics.RGB; public import org.eclipse.swt.internal.SerializableCompatibility; import org.eclipse.swt.SWT; import java.lang.all; /** * Instances of this class are descriptions of colors in * terms of the primary additive color model (red, green and * blue). A color may be described in terms of the relative * intensities of these three primary colors. The brightness * of each color is specified by a value in the range 0 to 255, * where 0 indicates no color (blackness) and 255 indicates * maximum intensity. * <p> * The hashCode() method in this class uses the values of the public * fields to compute the hash value. When storing instances of the * class in hashed collections, do not modify these fields after the * object has been inserted. * </p> * <p> * Application code does <em>not</em> need to explicitly release the * resources managed by each instance when those instances are no longer * required, and thus no <code>dispose()</code> method is provided. * </p> * * @see Color * @see <a href="http://www.eclipse.org/swt/snippets/#color">Color and RGB snippets</a> * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> */ public final class RGB : SerializableCompatibility { /** * the red component of the RGB */ public int red; /** * the green component of the RGB */ public int green; /** * the blue component of the RGB */ public int blue; //static final long serialVersionUID = 3258415023461249074L; /** * Constructs an instance of this class with the given * red, green and blue values. * * @param red the red component of the new instance * @param green the green component of the new instance * @param blue the blue component of the new instance * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_ARGUMENT - if the red, green or blue argument is not between 0 and 255</li> * </ul> */ public this (int red, int green, int blue) { if ((red > 255) || (red < 0) || (green > 255) || (green < 0) || (blue > 255) || (blue < 0)) SWT.error(SWT.ERROR_INVALID_ARGUMENT); this.red = red; this.green = green; this.blue = blue; } /** * Constructs an instance of this class with the given * hue, saturation, and brightness. * * @param hue the hue value for the HSB color (from 0 to 360) * @param saturation the saturation value for the HSB color (from 0 to 1) * @param brightness the brightness value for the HSB color (from 0 to 1) * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_ARGUMENT - if the hue is not between 0 and 360 or * the saturation or brightness is not between 0 and 1</li> * </ul> * * @since 3.2 */ public this (float hue, float saturation, float brightness) { if (hue < 0 || hue > 360 || saturation < 0 || saturation > 1 || brightness < 0 || brightness > 1) { SWT.error(SWT.ERROR_INVALID_ARGUMENT); } float r, g, b; if (saturation is 0) { r = g = b = brightness; } else { if (hue is 360) hue = 0; hue /= 60; int i = cast(int)hue; float f = hue - i; float p = brightness * (1 - saturation); float q = brightness * (1 - saturation * f); float t = brightness * (1 - saturation * (1 - f)); switch(i) { case 0: r = brightness; g = t; b = p; break; case 1: r = q; g = brightness; b = p; break; case 2: r = p; g = brightness; b = t; break; case 3: r = p; g = q; b = brightness; break; case 4: r = t; g = p; b = brightness; break; case 5: default: r = brightness; g = p; b = q; break; } } red = cast(int)(r * 255 + 0.5); green = cast(int)(g * 255 + 0.5); blue = cast(int)(b * 255 + 0.5); } /** * Returns the hue, saturation, and brightness of the color. * * @return color space values in float format (hue, saturation, brightness) * * @since 3.2 */ public float[] getHSB() { float r = red / 255f; float g = green / 255f; float b = blue / 255f; float max = Math.max(Math.max(r, g), b); float min = Math.min(Math.min(r, g), b); float delta = max - min; float hue = 0; float brightness = max; float saturation = max is 0 ? 0 : (max - min) / max; if (delta !is 0) { if (r is max) { hue = (g - b) / delta; } else { if (g is max) { hue = 2 + (b - r) / delta; } else { hue = 4 + (r - g) / delta; } } hue *= 60; if (hue < 0) hue += 360; } return [ hue, saturation, brightness ]; } /** * Compares the argument to the receiver, and returns true * if they represent the <em>same</em> object using a class * specific comparison. * * @param object the object to compare with this object * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise * * @see #hashCode() */ public override equals_t opEquals(Object object) { if (object is this) return true; if( auto rgb = cast(RGB) object ){ return (rgb.red is this.red) && (rgb.green is this.green) && (rgb.blue is this.blue); } return false; } /** * Returns an integer hash code for the receiver. Any two * objects that return <code>true</code> when passed to * <code>equals</code> must return the same value for this * method. * * @return the receiver's hash * * @see #equals(Object) */ override public hash_t toHash() { return (blue << 16) | (green << 8) | red; } /** * Returns a String containing a concise, human-readable * description of the receiver. * * @return a String representation of the <code>RGB</code> */ public override String toString() { return Format( "RGB {{{}, {}, {}}", red, green, blue ); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ } } version(D_Version2){ mixin("alias const(RGB) constRGB;"); } else { // D1 alias RGB constRGB; }