📄 viewpanel.java

📁 联合国农粮署牵头开发的geonetwork源代码最新版
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//==============================================================================//===	Copyright (C) 2001-2007 Food and Agriculture Organization of the//===	United Nations (FAO-UN), United Nations World Food Programme (WFP)//===	and United Nations Environment Programme (UNEP)//===//===	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 2 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.//===//===	You should have received a copy of the GNU General Public License//===	along with this program; if not, write to the Free Software//===	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA//===//===	Contact: Jeroen Ticheler - FAO - Viale delle Terme di Caracalla 2,//===	Rome - Italy. email: geonetwork@osgeo.org//==============================================================================package org.fao.gast.gui;import java.awt.Component;import java.awt.Dimension;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.HashMap;import javax.swing.Icon;import javax.swing.JPanel;import javax.swing.JTree;import javax.swing.tree.DefaultTreeCellRenderer;import org.dlib.gui.FlexLayout;import org.dlib.gui.treeview.TreeView;import org.dlib.gui.treeview.TreeViewNode;import org.dlib.gui.treeview.TreeViewSelEvent;import org.dlib.gui.treeview.TreeViewSelListener;//==============================================================================public class ViewPanel extends JPanel{	//---------------------------------------------------------------------------	//---	//--- Constructor	//---	//---------------------------------------------------------------------------	public ViewPanel()	{		FlexLayout flexL = new FlexLayout(1,1);		flexL.setColProp(0, FlexLayout.EXPAND);		flexL.setRowProp(0, FlexLayout.EXPAND);		setLayout(flexL);		setMinimumSize(new Dimension(100, 50));		tree.addSelectionListener(selList);		tree.setCellRenderer(renderer);		tree.setRootVisible(false);		tree.setShowRootHandles(false);		add("0,0,x,x", tree);	}	//---------------------------------------------------------------------------	//---	//--- API methods	//---	//---------------------------------------------------------------------------	public Object addContainer(String label, Icon icon)	{		label = "<html><b>"+ label +"</b>";		TreeViewNode node = new TreeViewNode(label);		tree.getRootNode().addChild(node);		hmNodeImages.put(node, icon);		return node;	}	//---------------------------------------------------------------------------	public void addForm(Object container, String id, String label, Icon icon)	{		TreeViewNode node = new TreeViewNode(label);		node.setUserData(id);		((TreeViewNode) container).addChild(node);		hmNodeImages.put(node, icon);		tree.setRootNode(tree.getRootNode());		tree.getRootNode().expand(true, 3);	}	//---------------------------------------------------------------------------	public void setActionListener(ActionListener al)	{		this.al = al;	}	//---------------------------------------------------------------------------	//---	//--- Variables	//---	//---------------------------------------------------------------------------	private TreeView tree = new TreeView(false);	private ActionListener al;	private HashMap<TreeViewNode, Icon> hmNodeImages = new HashMap<TreeViewNode, Icon>();	//---------------------------------------------------------------------------	private TreeViewSelListener selList = new TreeViewSelListener()	{		public void nodeSelected(TreeViewSelEvent e)		{			TreeViewNode node = e.getSelectedNode();			String id = (node == null)								? null								: (String) node.getUserData();			al.actionPerformed(new ActionEvent(tree, 0, id));		}	};	//---------------------------------------------------------------------------	private DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer()	{		public Component getTreeCellRendererComponent(JTree tree, Object value,									boolean sel, boolean exp, boolean leaf,									int row, boolean hasFocus)		{			super.getTreeCellRendererComponent(tree, value, sel, exp, leaf, row, hasFocus);			setIcon(hmNodeImages.get(value));			return this;		}	};}//==============================================================================
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