| /******************************************************************************* |
| * Copyright (c) 2004, 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.DebugException; |
| import org.eclipse.debug.core.model.IMemoryBlock; |
| import org.eclipse.debug.core.model.IMemoryBlockExtension; |
| import org.eclipse.debug.core.model.MemoryByte; |
| import org.eclipse.debug.internal.ui.DebugUIMessages; |
| import org.eclipse.debug.internal.ui.DebugUIPlugin; |
| import org.eclipse.debug.internal.ui.views.memory.MemoryViewUtil; |
| import org.eclipse.debug.ui.IDebugUIConstants; |
| import org.eclipse.debug.ui.memory.AbstractTableRendering; |
| import org.eclipse.jface.viewers.ICellModifier; |
| import org.eclipse.swt.widgets.TableItem; |
| |
| /** |
| * @since 3.1 |
| */ |
| public class TableRenderingCellModifier implements ICellModifier { |
| |
| private boolean editActionInvoked = false; |
| |
| private AbstractTableRendering fRendering; |
| |
| public TableRenderingCellModifier(AbstractTableRendering rendering) { |
| fRendering = rendering; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.ICellModifier#canModify(java.lang.Object, |
| * java.lang.String) |
| */ |
| public boolean canModify(Object element, String property) { |
| boolean canModify = true; |
| try { |
| if (!(element instanceof TableRenderingLine)) |
| return false; |
| |
| if (!editActionInvoked) |
| return false; |
| |
| if (fRendering == null) |
| return false; |
| |
| if (fRendering.getMemoryBlock().supportsValueModification() == false) { |
| return false; |
| } |
| |
| TableRenderingLine line = (TableRenderingLine) element; |
| if (TableRenderingLine.P_ADDRESS.equals(property)) { |
| return false; |
| } |
| |
| // property is stored as number of addressable unit away from the |
| // line address |
| // to calculate offset to the memory line array, offset = |
| // numberofAddressableUnit * addressableSize |
| int addressableSize = getAddressableSize(); |
| |
| int offset = Integer.valueOf(property, 16).intValue() * addressableSize; |
| int end = offset + fRendering.getBytesPerColumn(); |
| |
| for (int i = offset; i < end; i++) { |
| MemoryByte oneByte = line.getByte(i); |
| |
| if (!oneByte.isWritable()) { |
| canModify = false; |
| } |
| } |
| return canModify; |
| } catch (NumberFormatException e) { |
| canModify = false; |
| return canModify; |
| } |
| } |
| |
| /** |
| * @return |
| */ |
| private int getAddressableSize() { |
| int addressableSize = fRendering.getAddressableSize(); |
| if (addressableSize < 1) |
| addressableSize = 1; |
| return addressableSize; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.ICellModifier#getValue(java.lang.Object, |
| * java.lang.String) |
| */ |
| public Object getValue(Object element, String property) { |
| // give back the value of the column |
| |
| if (!(element instanceof TableRenderingLine)) |
| return null; |
| |
| TableRenderingLine line = (TableRenderingLine) element; |
| try { |
| if (TableRenderingLine.P_ADDRESS.equals(property)) |
| return line.getAddress(); |
| |
| int offset = Integer.valueOf(property, 16).intValue() * getAddressableSize(); |
| int end = offset + fRendering.getBytesPerColumn(); |
| |
| // Ask for label provider |
| MemoryByte[] memory = line.getBytes(offset, end); |
| |
| if (line.isAvailable(offset, end)) { |
| // ask the renderer for a string representation of the bytes |
| offset = Integer.valueOf(property, 16).intValue(); |
| |
| BigInteger address = new BigInteger(((TableRenderingLine) element).getAddress(), 16); |
| address = address.add(BigInteger.valueOf(offset)); |
| |
| return fRendering.getString(fRendering.getRenderingId(), address, memory); |
| } |
| // if the range is not available, just return padded string |
| return getPaddedString(offset, end); |
| } catch (NumberFormatException e) { |
| return "00"; //$NON-NLS-1$ |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.ICellModifier#modify(java.lang.Object, |
| * java.lang.String, java.lang.Object) |
| */ |
| public void modify(Object element, String property, Object value) { |
| TableRenderingLine line = null; |
| if (!(element instanceof TableRenderingLine)) { |
| line = (TableRenderingLine) ((TableItem) element).getData(); |
| } else { |
| line = (TableRenderingLine) element; |
| } |
| |
| // validate data |
| if (!(value instanceof String)) |
| return; |
| |
| try { |
| // calculate offset to update |
| IMemoryBlock memoryBlk = fRendering.getMemoryBlock(); |
| |
| int lineOffset = Integer.valueOf(property, 16).intValue(); |
| |
| // this offset is number of addressable unit from the line address |
| BigInteger offset = getOffset(memoryBlk, line.getAddress(), lineOffset); |
| |
| byte[] bytes = null; |
| |
| String oldValue = (String) getValue(line, property); |
| |
| if (!oldValue.equals(value)) { |
| |
| // property is number of addressable unit from line address |
| // to calculate proper offset in the memoryViewLine's array |
| // offset = numberOfAddressableUnit * addressableSize |
| int offsetToLine = Integer.valueOf(property, 16).intValue() * getAddressableSize(); |
| int end = offsetToLine + fRendering.getBytesPerColumn(); |
| |
| MemoryByte[] oldArray = line.getBytes(offsetToLine, end); |
| |
| BigInteger address = new BigInteger(line.getAddress(), 16); |
| address = address.add(BigInteger.valueOf(offsetToLine)); |
| |
| bytes = fRendering.getBytes(fRendering.getRenderingId(), address, oldArray, (String) value); |
| |
| if (bytes == null) |
| return; |
| |
| if (bytes.length == 0) |
| return; |
| |
| if (bytes.length <= oldArray.length) { |
| boolean changed = false; |
| // check that the bytes returned has actually changed |
| for (int i = 0; i < bytes.length; i++) { |
| if (bytes[i] != oldArray[i].getValue()) { |
| changed = true; |
| break; |
| } |
| } |
| if (!changed) |
| return; |
| } |
| } else { |
| // return if value has not changed |
| return; |
| } |
| |
| if (memoryBlk instanceof IMemoryBlockExtension) |
| ((IMemoryBlockExtension) memoryBlk).setValue(offset, bytes); |
| else |
| memoryBlk.setValue(offset.longValue(), bytes); |
| } catch (DebugException e) { |
| MemoryViewUtil.openError(DebugUIMessages.MemoryViewCellModifier_failure_title, DebugUIMessages.MemoryViewCellModifier_failed, e); |
| } catch (NumberFormatException e) { |
| MemoryViewUtil.openError(DebugUIMessages.MemoryViewCellModifier_failure_title, DebugUIMessages.MemoryViewCellModifier_failed + "\n" + DebugUIMessages.MemoryViewCellModifier_data_is_invalid, null); //$NON-NLS-1$ |
| } |
| |
| } |
| |
| private BigInteger getOffset(IMemoryBlock memory, String lineAddress, int lineOffset) throws DebugException { |
| |
| BigInteger lineAddr = new BigInteger(lineAddress, 16); |
| BigInteger memoryAddr; |
| |
| if (memory instanceof IMemoryBlockExtension) { |
| memoryAddr = ((IMemoryBlockExtension) memory).getBigBaseAddress(); |
| } else { |
| memoryAddr = BigInteger.valueOf(memory.getStartAddress()); |
| } |
| |
| if (memoryAddr == null) |
| memoryAddr = new BigInteger("0"); //$NON-NLS-1$ |
| |
| return lineAddr.subtract(memoryAddr).add(BigInteger.valueOf(lineOffset)); |
| } |
| |
| /** |
| * @param editActionInvoked |
| * The editActionInvoked to set. |
| */ |
| public void setEditActionInvoked(boolean editActionInvoked) { |
| this.editActionInvoked = editActionInvoked; |
| } |
| |
| /** |
| * @param start |
| * @param end |
| * @return padded string |
| */ |
| public String getPaddedString(int start, int end) { |
| StringBuffer buf = new StringBuffer(); |
| String paddedStr = DebugUIPlugin.getDefault().getPreferenceStore().getString(IDebugUIConstants.PREF_PADDED_STR); |
| for (int i = start; i < end; i++) { |
| buf.append(paddedStr); |
| } |
| return buf.toString(); |
| } |
| |
| } |