xy.reflect.ui.info.menu.builtin.swing.HelpMenuItem Maven / Gradle / Ivy

/*******************************************************************************
 * Copyright (C) 2018 OTK Software
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * The GNU General Public License allows you also to freely redistribute 
 * the libraries under the same license, if you provide the terms of the 
 * GNU General Public License with them and add the following 
 * copyright notice at the appropriate place (with a link to 
 * http://javacollection.net/reflectionui/ web site when possible).
 ******************************************************************************/
package xy.reflect.ui.info.menu.builtin.swing;

import java.awt.Image;

import javax.swing.JPanel;

import xy.reflect.ui.control.swing.renderer.Form;
import xy.reflect.ui.control.swing.renderer.SwingRenderer;
import xy.reflect.ui.info.menu.builtin.AbstractBuiltInActionMenuItem;
import xy.reflect.ui.info.type.ITypeInfo;
import xy.reflect.ui.util.ReflectionUIError;
import xy.reflect.ui.util.ReflectionUIUtils;

public class HelpMenuItem extends AbstractBuiltInActionMenuItem {

	public HelpMenuItem() {
		name = "Help";
	}

	@Override
	public void execute(Object form, Object renderer) {
		SwingRenderer swingRenderer = (SwingRenderer) renderer;
		Object object = ((Form) form).getObject();
		ITypeInfo type = swingRenderer.getReflectionUI()
				.getTypeInfo(swingRenderer.getReflectionUI().getTypeInfoSource(object));
		String onlineHelp = type.getOnlineHelp();
		if ((onlineHelp == null) || (onlineHelp.length() == 0)) {
			throw new ReflectionUIError("Online help not provided for the type '" + type.getName() + "'");
		}
		String title = ReflectionUIUtils.composeMessage(swingRenderer.getObjectTitle(object), name);
		Image iconImage = swingRenderer.getObjectIconImage(object);
		swingRenderer.openInformationDialog((JPanel) form, onlineHelp, title, iconImage);
	}

}