Mercurial > projects > dwt2
view org.eclipse.jface/src/org/eclipse/jface/resource/ArrayFontDescriptor.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
---|---|
date | Sat, 14 Mar 2009 18:23:29 +0100 |
parents | |
children |
line wrap: on
line source
/******************************************************************************* * 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.ArrayFontDescriptor; import java.lang.all; import org.eclipse.jface.resource.FontDescriptor; import org.eclipse.swt.graphics.Device; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.FontData; /** * Describes a Font using an array of FontData * * @since 3.1 */ final class ArrayFontDescriptor : FontDescriptor { private FontData[] data; private Font originalFont = null; /** * Creates a font descriptor for a font with the given name, height, * and style. These arguments are passed directly to the constructor * of Font. * * @param data FontData describing the font to create * * @see org.eclipse.swt.graphics.Font#Font(org.eclipse.swt.graphics.Device, org.eclipse.swt.graphics.FontData) * @since 3.1 */ public this(FontData[] data) { this.data = data; } /** * Creates a font descriptor that describes the given font. * * @param originalFont font to be described * * @see FontDescriptor#createFrom(org.eclipse.swt.graphics.Font) * @since 3.1 */ public this(Font originalFont) { this(originalFont.getFontData()); this.originalFont = originalFont; } /* (non-Javadoc) * @see org.eclipse.jface.resource.FontDescriptor#getFontData() */ public override FontData[] getFontData() { // Copy the original array to ensure that callers will not modify it return copy(data); } /* (non-Javadoc) * @see org.eclipse.jface.resource.FontDescriptor#createFont(org.eclipse.swt.graphics.Device) */ public override Font createFont(Device device) { // If this descriptor is an existing font, then we can return the original font // if this is the same device. if (originalFont !is null) { // If we're allocating on the same device as the original font, return the original. if (originalFont.getDevice() is device) { return originalFont; } } return new Font(device, data); } /* (non-Javadoc) * @see java.lang.Object#equals(java.lang.Object) */ public override int opEquals(Object obj) { if ((obj.classinfo is ArrayFontDescriptor.classinfo)) { ArrayFontDescriptor descr = cast(ArrayFontDescriptor)obj; if (descr.originalFont !is originalFont) { return false; } if (originalFont !is null) { return true; } if (data.length !is descr.data.length) { return false; } for (int i = 0; i < data.length; i++) { FontData fd = data[i]; FontData fd2 = descr.data[i]; if (!fd.opEquals(fd2)) { return false; } } return true; } return false; } /* (non-Javadoc) * @see java.lang.Object#hashCode() */ public override hash_t toHash() { if (originalFont !is null) { return originalFont.toHash(); } int code = 0; for (int i = 0; i < data.length; i++) { FontData fd = data[i]; code += fd.toHash(); } return code; } /* (non-Javadoc) * @see org.eclipse.jface.resource.FontDescriptor#destroyFont(org.eclipse.swt.graphics.Font) */ public override void destroyFont(Font previouslyCreatedFont) { if (previouslyCreatedFont is originalFont) { return; } previouslyCreatedFont.dispose(); } }