svgrotate.java

完全基于java开发的svg矢量绘图工具

/*
 * Created on 4 mai 2004
 *
 =============================================
                   GNU LESSER GENERAL PUBLIC LICENSE Version 2.1
 =============================================
GLIPS Graffiti Editor, a SVG Editor
Copyright (C) 2003 Jordi SUC, Philippe Gil, SARL ITRIS

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

Contact : [e-mail]; [e-mail]

 =============================================
 */
package fr.itris.glips.svgeditor.domactions;

import fr.itris.glips.svgeditor.*;
import fr.itris.glips.svgeditor.canvas.*;
import fr.itris.glips.svgeditor.menutool.*;
import fr.itris.glips.svgeditor.selection.*;
import fr.itris.glips.svgeditor.undoredo.*;
import org.apache.batik.util.*;
import javax.swing.*;
import java.awt.geom.*;
import java.awt.event.*;
import java.util.*;
import org.w3c.dom.*;
import fr.itris.glips.svgeditor.resources.*;

/**
 * @author Jordi SUC
 *
 * the class allowing to rotate a node 
 */
public class SVGRotate extends SVGModuleAdapter{

	/**
	 * the id of the module
	 */
	final private String idrotate="Rotate", idrotate90="Rotate90", idrotatem90="Rotatem90", idrotate180="Rotate180";
	
	/**
	 * the labels
	 */
	private String labelrotate="", labelrotate90="", labelrotatem90="", labelrotate180="";
	
	/**
	 * the undo/redo labels
	 */
	private String undoredorotate="";
	
	/**
	 * the constant defining the 90 degrees rotation
	 */
	final private int ROTATE_90=0;
	
	/**
	 * the constant defining the -90 degrees rotation
	 */
	final private int ROTATE_MINUS_90=1;
	
	/**
	 * the constant defining the 180 degrees rotation
	 */
	final private int ROTATE_180=2;

	/**
	 * the menu items that will be contained in the menu
	 */
	private JMenuItem rotate90, rotatem90, rotate180;
	
	/**
	 * the listeners to the menu items
	 */
	private ActionListener rotate90Listener, rotatem90Listener, rotate180Listener;
	
	/**
	 * the menu in which the menu items will be inserted
	 */
	private JMenu rotate;
	
	/**
	 * the editor
	 */
	private SVGEditor editor=null;
	
	/**
	 * the nodes that are currently selected
	 */
	private LinkedList selectedNodes=new LinkedList();
	
	/**
	 * the constructor of the class
	 * @param editor the editor
	 */
	public SVGRotate(SVGEditor editor){
		
		this.editor=editor;
		
		//gets the labels from the resources
		ResourceBundle bundle=SVGEditor.getBundle();
		
		if(bundle!=null){
		    
			try{
				labelrotate=bundle.getString("labelrotate");
				labelrotate90=bundle.getString("labelrotate90");
				labelrotatem90=bundle.getString("labelrotatem90");
				labelrotate180=bundle.getString("labelrotate180");
				undoredorotate=bundle.getString("undoredorotate");
			}catch (Exception ex){}
		}
		
		//getting the icons
		ImageIcon rotate90Icon=SVGResource.getIcon("Rotate90", false),
						drotate90Icon=SVGResource.getIcon("Rotate90", true),
						rotatem90Icon=SVGResource.getIcon("Rotatem90", false),
						drotatem90Icon=SVGResource.getIcon("Rotatem90", true),
						rotate180Icon=SVGResource.getIcon("Rotate180", false),
						drotate180Icon=SVGResource.getIcon("Rotate180", true);
		
		//creates the menu items, sets the keyboard shortcuts
		rotate90=new JMenuItem(labelrotate90, rotate90Icon);
		rotate90.setDisabledIcon(drotate90Icon);
		rotate90.setAccelerator(KeyStroke.getKeyStroke(""));
		rotate90.setEnabled(false);
		
		rotatem90=new JMenuItem(labelrotatem90, rotatem90Icon);
		rotatem90.setDisabledIcon(drotatem90Icon);
		rotatem90.setAccelerator(KeyStroke.getKeyStroke(""));
		rotatem90.setEnabled(false);
		
		rotate180=new JMenuItem(labelrotate180, rotate180Icon);
		rotate180.setDisabledIcon(drotate180Icon);
		rotate180.setAccelerator(KeyStroke.getKeyStroke(""));
		rotate180.setEnabled(false);
		
		//a listener that listens to the changes of the SVGFrames
		final ActionListener svgframeListener=new ActionListener(){
			
			/**
			 * a listener on the selection changes
			 */
			private ActionListener selectionListener=null;
			
			/**
			 * the current selection module
			 */
			private SVGSelection selection=null;

			public void actionPerformed(ActionEvent e) {
				
				//clears the list of the selected items
				selectedNodes.clear();
				
				//disables the menuitems
				rotate90.setEnabled(false);
				rotatem90.setEnabled(false);
				rotate180.setEnabled(false);

				final SVGFrame frame=getSVGEditor().getFrameManager().getCurrentFrame();
				
				//if a selection listener is already registered on a selection module, it is removed	
				if(selection!=null && selectionListener!=null){
				    
					selection.removeSelectionListener(selectionListener);
				}

				//gets the current selection module	
				if(frame!=null){
				    
					selection=getSVGEditor().getSVGSelection();
				}
				
				if(frame!=null && selection!=null){
				    
					manageSelection();
					
					//the listener of the selection changes
					selectionListener=new ActionListener(){

						public void actionPerformed(ActionEvent e) {
							manageSelection();
						}
					};
					
					//adds the selection listener
					if(selectionListener!=null){
					    
						selection.addSelectionListener(selectionListener);
					}
				}
			}	
			
			/**
			 * updates the selected items and the state of the menu items
			 */
			protected void manageSelection(){
			    
				//disables the menuitems							
				rotate90.setEnabled(false);
				rotatem90.setEnabled(false);
				rotate180.setEnabled(false);
				
				LinkedList list=null;
				
				//gets the currently selected nodes list 
				if(selection!=null){
				    
					list=selection.getCurrentSelection(getSVGEditor().getFrameManager().getCurrentFrame());
				}
				
				selectedNodes.clear();
				
				//refresh the selected nodes list
				if(list!=null){
				    
				    selectedNodes.addAll(list);
				}
				
				if(selectedNodes.size()>0){
				    
					rotate90.setEnabled(true);
					rotatem90.setEnabled(true);
					rotate180.setEnabled(true);
				}								
			}
		};
		
		//adds the SVGFrame change listener
		editor.getFrameManager().addSVGFrameChangedListener(svgframeListener);

		//adds the listeners
		rotate90Listener=new ActionListener(){
		    
			public void actionPerformed(ActionEvent e) {
			    
			    if(getSVGEditor().getSVGSelection()!=null && ! getSVGEditor().getSVGSelection().isActing()){
			        
					getSVGEditor().cancelActions(true);
					
					if(selectedNodes.size()>0){

						rotate(selectedNodes,ROTATE_90);
					}
			    }
			}
		};
		
		rotate90.addActionListener(rotate90Listener);

		rotatem90Listener=new ActionListener(){
		    
			public void actionPerformed(ActionEvent e) {
			    
			    if(getSVGEditor().getSVGSelection()!=null && ! getSVGEditor().getSVGSelection().isActing()){
			        
					getSVGEditor().cancelActions(true);
					
					if(selectedNodes.size()>0){

						rotate(selectedNodes,ROTATE_MINUS_90);
					}
			    }
			}
		};
		
		rotatem90.addActionListener(rotatem90Listener);
		
		rotate180Listener=new ActionListener(){
		    
			public void actionPerformed(ActionEvent e) {
			    
			    if(getSVGEditor().getSVGSelection()!=null && ! getSVGEditor().getSVGSelection().isActing()){
			        
					getSVGEditor().cancelActions(true);
					
					if(selectedNodes.size()>0){

						rotate(selectedNodes,ROTATE_180);
					}
			    }
			}
		};
		
		rotate180.addActionListener(rotate180Listener);

		//adds the menu items to the menu
		rotate=new JMenu(labelrotate);
		rotate.add(rotate90);
		rotate.add(rotatem90);
		rotate.add(rotate180);
	}
	
	/**
	 * @return the editor
	 */
	public SVGEditor getSVGEditor(){