?? pngexport.java
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package com.opensymphony.workflow.designer.actions;import java.awt.event.ActionEvent;import java.awt.image.BufferedImage;import java.awt.*;import java.io.File;import java.io.IOException;import javax.swing.*;import javax.imageio.ImageIO;import com.opensymphony.workflow.designer.event.WorkspaceListener;import com.opensymphony.workflow.designer.event.WorkspaceEvent;import com.opensymphony.workflow.designer.*;/** * @author Hani Suleiman (hani@formicary.net) * Date: May 21, 2003 * Time: 5:51:14 PM */public class PNGExport extends AbstractAction implements WorkspaceListener{ public PNGExport() { setEnabled(false); } public void actionPerformed(ActionEvent e) { File output = Utils.promptUserForFile((Component)e.getSource(), JFileChooser.FILES_AND_DIRECTORIES, true, ".png", ResourceManager.getString("png.files")); if(output==null) return; WorkflowGraph graph = WorkflowDesigner.INSTANCE.getCurrentGraph(); BufferedImage image = Utils.toImage(graph); try { ImageIO.write(image, "png", output); } catch(IOException e1) { e1.printStackTrace(); } } public void workspaceChanged(WorkspaceEvent event) { if(event.getId()==WorkspaceEvent.WORKSPACE_OPENED) { setEnabled(true); } else { setEnabled(false); } }}?? 快捷鍵說明
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