| /******************************************************************************* |
| * Copyright (c) 2005 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 |
| *******************************************************************************/ |
| |
| package org.eclipse.debug.internal.ui.views.memory.renderings; |
| |
| import java.math.BigInteger; |
| |
| import org.eclipse.debug.core.model.MemoryByte; |
| import org.eclipse.debug.ui.memory.AbstractTableRendering; |
| import org.eclipse.debug.ui.memory.MemoryRenderingElement; |
| import org.eclipse.jface.viewers.IColorProvider; |
| import org.eclipse.jface.viewers.IFontProvider; |
| import org.eclipse.jface.viewers.ILabelProvider; |
| import org.eclipse.jface.viewers.ITableColorProvider; |
| import org.eclipse.jface.viewers.ITableFontProvider; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.swt.graphics.Image; |
| |
| /** |
| * This label provider is used by AbstractTableRendering if clients decide to |
| * provide customized decorations in the rendering. Otherwise the table |
| * rendering uses TableRenderingLabelProvider. |
| * |
| */ |
| public class TableRenderingLabelProviderEx extends TableRenderingLabelProvider implements ITableColorProvider, ITableFontProvider { |
| |
| private IFontProvider fFontProvider; |
| private ILabelProvider fLabelProvider; |
| private IColorProvider fColorProvider; |
| |
| public TableRenderingLabelProviderEx(AbstractTableRendering rendering) { |
| super(rendering); |
| fLabelProvider = (ILabelProvider) rendering.getAdapter(ILabelProvider.class); |
| fColorProvider = (IColorProvider) rendering.getAdapter(IColorProvider.class); |
| fFontProvider = (IFontProvider) rendering.getAdapter(IFontProvider.class); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose() |
| */ |
| public void dispose() { |
| if (fFontProvider != null) { |
| fFontProvider = null; |
| } |
| if (fColorProvider != null) { |
| fColorProvider = null; |
| } |
| if (fLabelProvider != null) { |
| fLabelProvider.dispose(); |
| fLabelProvider = null; |
| } |
| super.dispose(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ITableColorProvider#getBackground(java.lang.Object, int) |
| */ |
| public Color getBackground(Object element, int columnIndex) { |
| if (fColorProvider != null && columnIndex > 0) { |
| MemoryRenderingElement renderingElement = getMemoryRenderingElement(element, columnIndex); |
| if (renderingElement != null) { |
| Color color = fColorProvider.getBackground(renderingElement); |
| if (color != null) |
| return color; |
| } |
| } |
| return super.getBackground(element); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ITableColorProvider#getForeground(java.lang.Object, int) |
| */ |
| public Color getForeground(Object element, int columnIndex) { |
| if (fColorProvider != null && columnIndex > 0) { |
| MemoryRenderingElement renderingElement = getMemoryRenderingElement(element, columnIndex); |
| if (renderingElement != null) { |
| Color color = fColorProvider.getForeground(renderingElement); |
| if (color != null) |
| return color; |
| } |
| } |
| return super.getForeground(element); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang.Object, int) |
| */ |
| public Image getColumnImage(Object element, int columnIndex) { |
| if (fLabelProvider != null && columnIndex > 0) { |
| MemoryRenderingElement renderingElement = getMemoryRenderingElement(element, columnIndex); |
| if (renderingElement != null) { |
| Image image = fLabelProvider.getImage(renderingElement); |
| if (image != null) |
| return image; |
| } |
| } |
| return super.getColumnImage(element, columnIndex); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ITableFontProvider#getFont(java.lang.Object, int) |
| */ |
| public Font getFont(Object element, int columnIndex) { |
| if (fFontProvider != null && columnIndex > 0) { |
| MemoryRenderingElement renderingElement = getMemoryRenderingElement(element, columnIndex); |
| if (renderingElement != null) { |
| Font font = fFontProvider.getFont(renderingElement); |
| if (font != null) |
| return font; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns a memory rendering element corresponding to the given element |
| * or <code>null</code> if none. |
| * |
| * @param element element to be rendered |
| * @param columnIndex column index at which to render |
| * @return memory rendering element or <code>null</code> |
| */ |
| private MemoryRenderingElement getMemoryRenderingElement(Object element, int columnIndex) { |
| if (element instanceof TableRenderingLine) { |
| TableRenderingLine line = (TableRenderingLine) element; |
| BigInteger lineAddress = new BigInteger(line.getAddress(), 16); |
| int offset = (columnIndex - 1) * fRendering.getBytesPerColumn(); |
| if (offset < fRendering.getBytesPerLine() && (offset + fRendering.getBytesPerColumn()) <= fRendering.getBytesPerLine()) { |
| return getMemoryRenderingElement(line, lineAddress, offset); |
| } |
| } |
| return null; |
| } |
| |
| private MemoryRenderingElement getMemoryRenderingElement(TableRenderingLine line, BigInteger lineAddress, int offset) { |
| BigInteger cellAddress = lineAddress.add(BigInteger.valueOf(offset)); |
| MemoryByte[] bytes = line.getBytes(offset, offset |
| + fRendering.getBytesPerColumn()); |
| // make a copy to ensure that the memory bytes are not overwritten |
| // by clients |
| MemoryByte[] copy = new MemoryByte[bytes.length]; |
| System.arraycopy(bytes, 0, copy, 0, bytes.length); |
| MemoryRenderingElement renderingElement = new MemoryRenderingElement( |
| fRendering, cellAddress, copy); |
| return renderingElement; |
| } |
| } |