Mercurial > projects > dwt2
view org.eclipse.jface/src/org/eclipse/jface/resource/DeviceResourceManager.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 14 Mar 2009 18:23:29 +0100 |
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/******************************************************************************* * 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 org.eclipse.jface.resource.DeviceResourceManager; import org.eclipse.jface.resource.AbstractResourceManager; import org.eclipse.jface.resource.DeviceResourceDescriptor; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.swt.graphics.Device; import org.eclipse.swt.graphics.Image; import java.lang.all; /** * Manages SWT resources for a particular device. * * <p> * IMPORTANT: in most cases clients should use a <code>LocalResourceManager</code> instead of a * <code>DeviceResourceManager</code>. To create a resource manager on a particular display, * use <code>new LocalResourceManager(JFaceResources.getResources(myDisplay))</code>. * <code>DeviceResourceManager</code> should only be used directly when managing * resources for a device other than a Display (such as a printer). * </p> * * @see LocalResourceManager * * @since 3.1 */ public final class DeviceResourceManager : AbstractResourceManager { private Device device; private Image missingImage; /* (non-Javadoc) * @see org.eclipse.jface.resource.ResourceManager#getDevice() */ public override Device getDevice() { return device; } /** * Creates a new registry for the given device. * * @param device device to manage */ public this(Device device) { this.device = device; } /* (non-Javadoc) * @see org.eclipse.jface.resource.AbstractResourceManager#allocate(org.eclipse.jface.resource.DeviceResourceDescriptor) */ protected override Object allocate(DeviceResourceDescriptor descriptor){ return descriptor.createResource(device); } /* (non-Javadoc) * @see org.eclipse.jface.resource.AbstractResourceManager#deallocate(java.lang.Object, org.eclipse.jface.resource.DeviceResourceDescriptor) */ protected override void deallocate(Object resource, DeviceResourceDescriptor descriptor) { descriptor.destroyResource(resource); } /* (non-Javadoc) * @see org.eclipse.jface.resource.ResourceManager#getDefaultImage() */ protected override Image getDefaultImage() { if (missingImage is null) { missingImage = ImageDescriptor.getMissingImageDescriptor().createImage(); } return missingImage; } /* (non-Javadoc) * @see org.eclipse.jface.resource.AbstractResourceManager#dispose() */ public override void dispose() { super.dispose(); if (missingImage !is null) { missingImage.dispose(); missingImage = null; } } }