Mercurial > projects > dwt-addons
diff dwtx/jface/resource/RGBColorDescriptor.d @ 8:a3ff22a98bef
Dialog
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 29 Mar 2008 01:25:27 +0100 |
parents | |
children | ea8ff534f622 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwtx/jface/resource/RGBColorDescriptor.d Sat Mar 29 01:25:27 2008 +0100 @@ -0,0 +1,102 @@ +/******************************************************************************* + * Copyright (c) 2004, 2006 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 dwtx.jface.resource.RGBColorDescriptor; + +import dwtx.jface.resource.ColorDescriptor; + +import dwt.graphics.Color; +import dwt.graphics.Device; +import dwt.graphics.RGB; + +import dwt.dwthelper.utils; + +/** + * Describes a color by its RGB values. + * + * @since 3.1 + */ +class RGBColorDescriptor : ColorDescriptor { + + private RGB color; + + /** + * Color being copied, or null if none + */ + private Color originalColor = null; + + /** + * Creates a new RGBColorDescriptor given some RGB values + * + * @param color RGB values (not null) + */ + public this(RGB color) { + this.color = color; + } + + /** + * Creates a new RGBColorDescriptor that describes an existing color. + * + * @since 3.1 + * + * @param originalColor a color to describe + */ + public this(Color originalColor) { + this(originalColor.getRGB()); + this.originalColor = originalColor; + } + + /* (non-Javadoc) + * @see java.lang.Object#equals(java.lang.Object) + */ + public override int opEquals(Object obj) { + if ( auto other = cast(RGBColorDescriptor)obj ) { + return other.color.opEquals(color) && other.originalColor is originalColor; + } + + return false; + } + + /* (non-Javadoc) + * @see java.lang.Object#hashCode() + */ + public override hash_t toHash() { + return color.toHash(); + } + + /* (non-Javadoc) + * @see dwtx.jface.resources.ColorDescriptor#createColor() + */ + public Color createColor(Device device) { + // If this descriptor is wrapping an existing color, then we can return the original color + // if this is the same device. + if (originalColor !is null) { + // If we're allocating on the same device as the original color, return the original. + if (originalColor.getDevice() is device) { + return originalColor; + } + } + + return new Color(device, color); + } + + /* (non-Javadoc) + * @see dwtx.jface.resource.ColorDescriptor#destroyColor(dwt.graphics.Color) + */ + public void destroyColor(Color toDestroy) { + if (toDestroy is originalColor) { + return; + } + + toDestroy.dispose(); + } +}