mirror of
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107 lines
2.8 KiB
Java
107 lines
2.8 KiB
Java
/**
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* Copyright (C) 2009 - 2019 <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.base.gui;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.events.SelectionListener;
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/**
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* Action class which abstracts from SWT.
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*
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* @author Peter Dell
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*
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*/
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public final class Action implements SelectionListener {
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private int id;
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private ActionListener actionListener;
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private boolean enabled;
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/**
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* Creates a new action.
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*
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* @param id
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* The action is, a non-negative integer.
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* @param actionListener
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* The action listener, not <code>null</code>.
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*/
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public Action(int id, ActionListener actionListener) {
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if (id < 0) {
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throw new IllegalArgumentException("Parameter 'id' must not be negative. Specified value is " + id + ".");
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}
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if (actionListener == null) {
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throw new IllegalArgumentException("Parameter 'actionListener' must not be null.");
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}
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this.id = id;
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this.actionListener = actionListener;
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this.enabled = true;
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}
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/**
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* Gets the id of the action.
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*
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* @return The id of the action, a non-negative integer.
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*/
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public int getId() {
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return id;
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}
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/**
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* Sets the enabled state of the action. Disabled actions do not fire.
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*
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* @param enabled
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* <code>true</code> to enable the action, <code>false</code> to
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* disable the action.
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*/
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public void setEnabled(boolean enabled) {
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this.enabled = enabled;
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}
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/**
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* Callback from SWT, do not use.
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*/
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@Override
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public void widgetDefaultSelected(SelectionEvent e) {
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performAction();
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}
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/**
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* Callback from SWT, do not use.
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*/
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@Override
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public void widgetSelected(SelectionEvent e) {
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performAction();
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}
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private void performAction() {
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if (enabled) {
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actionListener.performAction(this);
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}
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}
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@Override
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public String toString() {
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return "actionId=" + id;
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}
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}
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