Java tutorial
/******************************************************************************* * Copyright (c) 2005-2011 eBay Inc. * 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 * *******************************************************************************/ /** * */ package org.ebayopensource.vjet.eclipse.ui; import org.eclipse.core.runtime.Assert; import org.eclipse.dltk.mod.ui.DLTKPluginImages; import org.eclipse.dltk.mod.ui.DLTKUIPlugin; import org.eclipse.jface.resource.CompositeImageDescriptor; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.swt.graphics.ImageData; import org.eclipse.swt.graphics.Point; /** * * */ public class VjoElementImageDescriptor extends CompositeImageDescriptor { /** * Flag to render the abstract adornment. */ public final static int ABSTRACT = 0x001; /** Flag to render the 'constructor' adornment. */ public final static int CONSTRUCTOR = 0x200; /** * Flag to render the 'deprecated' adornment. * * @since 3.0 */ public final static int DEPRECATED = 0x400; /** Flag to render the error adornment. */ public final static int ERROR = 0x040; /** Flag to render the final adornment. */ public final static int FINAL = 0x002; /** Flag to render the 'implements' adornment. */ public final static int IMPLEMENTS = 0x100; /** Flag to render the 'override' adornment. */ public final static int OVERRIDES = 0x080; /** Flag to render the runnable adornment. */ public final static int RUNNABLE = 0x010; /** Flag to render the static adornment. */ public final static int STATIC = 0x008; /** Flag to render the synchronized adornment. */ public final static int SYNCHRONIZED = 0x004; /** Flag to render the warning adornment. */ public final static int WARNING = 0x020; /*** Flag to render the mixin adorment. */ public final static int MIXIN = 0x800; /*** Flag to render the global adorment. */ public final static int GLOBAL = 0x1000; /*** Flag to render the optinoal property. */ public final static int OPTION_PRO = 0x10000; private ImageDescriptor m_baseImage; private int m_flags; private Point m_size; /** * Creates a new JavaElementImageDescriptor. * * @param baseImage * an image descriptor used as the base image * @param flags * flags indicating which adornments are to be rendered. See * <code>setAdornments</code> for valid values. * @param size * the size of the resulting image * @see #setAdornments(int) */ public VjoElementImageDescriptor(ImageDescriptor baseImage, int flags, Point size) { m_baseImage = baseImage; Assert.isNotNull(m_baseImage); m_flags = flags; Assert.isTrue(m_flags >= 0); m_size = size; Assert.isNotNull(m_size); } private void drawBottomLeft() { Point size = getSize(); int x = 0; if ((m_flags & ERROR) != 0) { ImageData data = getImageData(DLTKPluginImages.DESC_OVR_ERROR); drawImage(data, x, size.y - data.height); x += data.width; } if ((m_flags & WARNING) != 0) { ImageData data = getImageData(DLTKPluginImages.DESC_OVR_WARNING); drawImage(data, x, size.y - data.height); x += data.width; } } private void drawBottomRight() { Point size = getSize(); int x = size.x; int flags = m_flags; int syncAndOver = SYNCHRONIZED | OVERRIDES; int syncAndImpl = SYNCHRONIZED | IMPLEMENTS; if ((flags & syncAndOver) == syncAndOver) { // both flags set: merged // overlay image ImageData data = getImageData(getDescriptor("icons/full/ovr16/sync_over.gif")); x -= data.width; drawImage(data, x, size.y - data.height); flags &= ~syncAndOver; // clear to not render again } else if ((flags & syncAndImpl) == syncAndImpl) { // both flags set: // merged overlay image ImageData data = getImageData(getDescriptor("icons/full/ovr16/sync_impl.gif")); x -= data.width; drawImage(data, x, size.y - data.height); flags &= ~syncAndImpl; // clear to not render again } if ((flags & OVERRIDES) != 0) { ImageData data = getImageData(getDescriptor("icons/full/ovr16/over_co.gif")); x -= data.width; drawImage(data, x, size.y - data.height); } if ((flags & IMPLEMENTS) != 0) { ImageData data = getImageData(getDescriptor("icons/full/ovr16/implm_co.gif")); x -= data.width; drawImage(data, x, size.y - data.height); } if ((flags & SYNCHRONIZED) != 0) { ImageData data = getImageData(getDescriptor("icons/full/ovr16/synch_co.gif")); x -= data.width; drawImage(data, x, size.y - data.height); } if ((flags & RUNNABLE) != 0) { ImageData data = getImageData(getDescriptor("icons/full/ovr16/run_co.gif")); x -= data.width; drawImage(data, x, size.y - data.height); } } /* * (non-Javadoc) Method declared in CompositeImageDescriptor */ @Override protected void drawCompositeImage(int width, int height) { ImageData bg = getImageData(m_baseImage); if ((m_flags & DEPRECATED) != 0) { // over the full image Point size = getSize(); ImageData data = getImageData(getDescriptor("icons/full/ovr16/deprecated.gif")); drawImage(data, 0, size.y - data.height); } drawImage(bg, 0, 0); drawTopRight(); drawBottomRight(); drawBottomLeft(); } private void drawTopRight() { int x = getSize().x; if ((m_flags & ABSTRACT) != 0) { ImageData data = getImageData(DLTKPluginImages.DESC_OVR_ABSTRACT); x -= data.width; drawImage(data, x, 0); } if ((m_flags & CONSTRUCTOR) != 0) { ImageData data = getImageData(getDescriptor("icons/full/ovr16/constr_ovr.gif")); x -= data.width; drawImage(data, x, 0); } if ((m_flags & FINAL) != 0) { ImageData data = getImageData(getDescriptor("icons/full/ovr16/final_co.gif")); x -= data.width; drawImage(data, x, 0); } if ((m_flags & STATIC) != 0) { ImageData data = getImageData(getDescriptor("icons/full/ovr16/static_co.gif")); x -= data.width; drawImage(data, x, 0); } if ((m_flags & MIXIN) != 0) { ImageData data = getImageData(VjetUIPlugin.getImageDescriptor("icons/full/ovr16/module_co.gif")); x -= data.width; drawImage(data, x, 0); } // add by patrick if ((m_flags & GLOBAL) != 0) { ImageData data = getImageData(DLTKPluginImages.DESC_OVR_FIELD_GLOBAL); x -= data.width; drawImage(data, x, 0); } // end add // Added by Eric.Ma on 20100528 for otype frontend if ((m_flags & OPTION_PRO) != 0) { ImageData data = getImageData(DLTKPluginImages.DESC_OVR_FIELD_INDEX); x -= data.width; drawImage(data, x, 0); } // end of added } /* * (non-Javadoc) Method declared on Object. */ @Override public boolean equals(Object object) { if (object == null || !VjoElementImageDescriptor.class.equals(object.getClass())) return false; VjoElementImageDescriptor other = (VjoElementImageDescriptor) object; return (m_baseImage.equals(other.m_baseImage) && m_flags == other.m_flags && m_size.equals(other.m_size)); } /** * Returns the current adornments. * * @return the current adornments */ public int getAdronments() { return m_flags; } private ImageDescriptor getDescriptor(String path) { return DLTKUIPlugin.getImageDescriptor(path); } private ImageData getImageData(ImageDescriptor descriptor) { ImageData data = descriptor.getImageData(); // see bug 51965: // getImageData // can return null if (data == null) { data = DEFAULT_IMAGE_DATA; DLTKUIPlugin.logErrorMessage("Image data not available: " + descriptor.toString()); //$NON-NLS-1$ } return data; } /** * Returns the size of the image created by calling * <code>createImage()</code>. * * @return the size of the image created by calling * <code>createImage()</code> * @see ImageDescriptor#createImage() */ public Point getImageSize() { return new Point(m_size.x, m_size.y); } /* * (non-Javadoc) Method declared in CompositeImageDescriptor */ @Override protected Point getSize() { return m_size; } /* * (non-Javadoc) Method declared on Object. */ @Override public int hashCode() { return m_baseImage.hashCode() | m_flags | m_size.hashCode(); } /** * Sets the descriptors adornments. Valid values are: <code>ABSTRACT</code>, * <code>FINAL</code>, <code>SYNCHRONIZED</code>, </code>STATIC<code>, * </code>RUNNABLE<code>, </code>WARNING<code>, </code>ERROR<code>, * </code>OVERRIDDES<code>, <code>IMPLEMENTS</code>, * <code>CONSTRUCTOR</code>, <code>DEPRECATED</code>, or any * combination of those. * * @param adornments * the image descriptors adornments */ public void setAdornments(int adornments) { Assert.isTrue(adornments >= 0); m_flags = adornments; } /** * Sets the size of the image created by calling <code>createImage()</code>. * * @param size * the size of the image returned from calling * <code>createImage()</code> * @see ImageDescriptor#createImage() */ public void setImageSize(Point size) { Assert.isNotNull(size); Assert.isTrue(size.x >= 0 && size.y >= 0); m_size = size; } }