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78 lines
2.5 KiB
Java
78 lines
2.5 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.AbstractHandler;
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import org.eclipse.core.commands.ExecutionEvent;
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import org.eclipse.core.commands.ExecutionException;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.ui.IEditorPart;
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import org.eclipse.ui.handlers.HandlerUtil;
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import com.wudsn.ide.base.gui.MessageManager;
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/**
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* The handler based class for commands based on the {@link HexEditorSelection}.
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*
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* @author Peter Dell
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*/
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public abstract class HexEditorSelectionCommandHandler extends AbstractHandler {
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protected ExecutionEvent event;
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protected String commandId;
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protected HexEditorSelection hexEditorSelection;
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protected HexEditor hexEditor;
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protected MessageManager messageManager;
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/**
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* Creation is protected.
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*/
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protected HexEditorSelectionCommandHandler() {
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super();
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}
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@Override
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public final Object execute(ExecutionEvent event) throws ExecutionException {
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IEditorPart editorPart;
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ISelection menuEditorInputSelection;
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editorPart = HandlerUtil.getActiveEditor(event);
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menuEditorInputSelection = HandlerUtil.getActiveMenuSelection(event);
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if (editorPart instanceof HexEditor && menuEditorInputSelection instanceof HexEditorSelection) {
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this.event = event;
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this.commandId = event.getCommand().getId();
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this.hexEditorSelection = (HexEditorSelection) menuEditorInputSelection;
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this.hexEditor = ((HexEditor) editorPart);
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this.messageManager = hexEditor.getMessageManager();
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messageManager.clearMessages();
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performAction();
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messageManager.displayMessages();
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}
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return null;
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}
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protected abstract void performAction() throws ExecutionException;
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}
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