mirror of
https://github.com/peterdell/wudsn-ide.git
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184 lines
6.4 KiB
Java
184 lines
6.4 KiB
Java
/**
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* Copyright (C) 2009 - 2021 <a href="https://www.wudsn.com" target="_top">Peter Dell</a>
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*
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* This file is part of WUDSN IDE.
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*
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* WUDSN IDE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* WUDSN IDE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with WUDSN IDE. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.wudsn.ide.hex;
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import org.eclipse.core.commands.ExecutionException;
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import org.eclipse.core.runtime.IStatus;
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import org.eclipse.swt.dnd.Clipboard;
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import org.eclipse.swt.dnd.TextTransfer;
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import org.eclipse.swt.dnd.Transfer;
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import org.eclipse.ui.IWorkbenchSite;
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import org.eclipse.ui.handlers.HandlerUtil;
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import com.wudsn.ide.base.common.HexUtility;
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import com.wudsn.ide.base.common.NumberUtility;
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/**
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* The handler for the commands to copy the selection to the clipboard.
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*
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* @author Peter Dell
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*/
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public final class HexEditorClipboardCommandHandler extends HexEditorSelectionCommandHandler {
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public static final class CommandIds {
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private CommandIds() {
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}
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public static final String COPY = "com.wudsn.ide.hex.HexEditorCopyToClipboardCommand";
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public static final String COPY_AS_HEX_VALUES = "com.wudsn.ide.hex.HexEditorCopyToClipboardAsHexValuesCommand";
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public static final String COPY_AS_DECIMAL_VALUES = "com.wudsn.ide.hex.HexEditorCopyToClipboardAsDecimalValuesCommand";
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public static final String COPY_AS_DECIMAL_VALUES_BLOCK = "com.wudsn.ide.hex.HexEditorCopyToClipboardAsDecimalValuesBlockCommand";
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public static final String COPY_AS_ASCII_STRING = "com.wudsn.ide.hex.HexEditorCopyToClipboardAsASCIIStringCommand";
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public static final String PASTE = "com.wudsn.ide.hex.HexEditorPasteFromClipboardCommand";
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}
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/**
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* Creation is public. Called by extension point "org.eclipse.ui.handlers".
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*/
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public HexEditorClipboardCommandHandler() {
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super();
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}
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@Override
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protected void performAction() throws ExecutionException {
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byte[] bytes;
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bytes = hexEditorSelection.getBytes();
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StringBuilder builder = new StringBuilder(5 * bytes.length);
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String lineSeparator = System.getProperty("line.separator");
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Object[] data;
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Transfer[] transfers;
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int bytesPerRow = hexEditor.getBytesPerRow();
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if (commandId.equals(CommandIds.COPY) && !hexEditorSelection.isEmpty()) {
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data = new Object[] { hexEditorSelection };
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transfers = new Transfer[] { HexEditorSelectionTransfer.getInstance() };
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copyToClipboard(bytes, data, transfers);
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} else if ((commandId.equals(CommandIds.COPY_AS_HEX_VALUES)
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|| commandId.equals(CommandIds.COPY_AS_DECIMAL_VALUES)
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|| commandId.equals(CommandIds.COPY_AS_DECIMAL_VALUES_BLOCK)
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|| commandId.equals(CommandIds.COPY_AS_ASCII_STRING)) && !hexEditorSelection.isEmpty()) {
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if (commandId.equals(CommandIds.COPY_AS_HEX_VALUES)) {
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builder.append(".byte ");
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for (int i = 0; i < bytes.length; i++) {
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builder.append("$");
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builder.append(HexUtility.getByteValueHexString(bytes[i] & 0xff));
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if ((i + 1) % bytesPerRow == 0) {
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builder.append(lineSeparator);
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if (i < bytes.length - 1) {
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builder.append(".byte ");
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}
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} else {
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if (i < bytes.length - 1) {
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builder.append(',');
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}
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}
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}
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} else if (commandId.equals(CommandIds.COPY_AS_DECIMAL_VALUES)
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|| commandId.equals(CommandIds.COPY_AS_DECIMAL_VALUES_BLOCK)) {
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// In block mode, decimals are aligned to 3 digits.
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boolean block = commandId.equals(CommandIds.COPY_AS_DECIMAL_VALUES_BLOCK);
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builder.append(".byte ");
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for (int i = 0; i < bytes.length; i++) {
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int b = bytes[i] & 0xff;
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if (block) {
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if (b < 10) {
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builder.append(" ");
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} else if (b < 100) {
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builder.append(' ');
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}
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}
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builder.append(Integer.toString(b));
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if ((i + 1) % bytesPerRow == 0) {
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builder.append(lineSeparator);
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if (i < bytes.length - 1) {
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builder.append(".byte ");
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}
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} else {
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if (i < bytes.length - 1) {
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builder.append(',');
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}
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}
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}
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} else if (commandId.equals(CommandIds.COPY_AS_ASCII_STRING)) {
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for (int i = 0; i < bytes.length; i++) {
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char c = (char) (bytes[i] & 0xff);
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builder.append(c);
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}
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} else {
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throw new IllegalArgumentException("Unknown command '" + commandId + "'.");
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}
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data = new Object[] { builder.toString(), hexEditorSelection };
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transfers = new Transfer[] { TextTransfer.getInstance(), HexEditorSelectionTransfer.getInstance() };
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copyToClipboard(bytes, data, transfers);
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} else if (commandId.equals(CommandIds.PASTE)) {
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pasteFromClipboard();
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}
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}
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private void copyToClipboard(byte[] bytes, Object[] data, Transfer[] transfers) throws ExecutionException {
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if (bytes == null) {
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throw new IllegalArgumentException("Parameter 'bytes' must not be null.");
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}
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if (data == null) {
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throw new IllegalArgumentException("Parameter 'data' must not be null.");
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}
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if (transfers == null) {
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throw new IllegalArgumentException("Parameter 'transfers' must not be null.");
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}
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IWorkbenchSite site = HandlerUtil.getActiveSiteChecked(event);
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Clipboard clipboard = new Clipboard(site.getShell().getDisplay());
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try {
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clipboard.setContents(data, transfers);
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} finally {
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clipboard.dispose();
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}
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// INFO: ${0} ({1}) bytes copied to clipboard.
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messageManager.sendMessage(0, IStatus.OK, Texts.MESSAGE_I302, HexUtility.getLongValueHexString(bytes.length),
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NumberUtility.getLongValueDecimalString(bytes.length));
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}
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private void pasteFromClipboard() throws ExecutionException {
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IWorkbenchSite site = HandlerUtil.getActiveSiteChecked(event);
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Clipboard clipboard = new Clipboard(site.getShell().getDisplay());
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try {
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Object data = clipboard.getContents(HexEditorSelectionTransfer.getInstance());
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if (data != null) {
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byte[] bytes = ((HexEditorSelection) data).getBytes();
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hexEditor.pasteFromClipboard(bytes);
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}
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} finally {
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clipboard.dispose();
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}
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}
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}
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