s.java

emacs的一个非常有用的插件,叫xrefactory,可以实现source insight里的那种函数跳转.和cscope(跳回来不方便)配合使用,非常的不错.

					progressi += n;
				}
				if (! progress.setProgress(progressi*100/progressn)) {
					// cancel
					n = -2;
				}
			}
			ii.close();
			oo.close();
			fileSetExecPermission(file);
			if (n == -2) {
				// canceled
				of.delete();
			}
		} catch(Exception e) {
			try {
				if (oo!=null) {
					oo.close();
					new File(file).delete();
				}
				if (ii!=null) ii.close();
			} catch (Exception ee) {}
			progress.setVisible(false);
			JOptionPane.showMessageDialog(
				null,
				e.toString()+"\nWhile downloading "+url+".\nMaybe wrong proxy configuration?", 
				"Xrefactory Error",
				JOptionPane.ERROR_MESSAGE);
		}
		progress.setVisible(false);
	}

	public static void setGlobalValues() {
		String deftmp, defslash, defcpsep, defcfile, deftask, downloadtask, instdir;

		// non settable property, should be always false in normal installations
		debug = jEdit.getBooleanProperty("xrefactory.debug-mode", debug);

		javaVersion = System.getProperty("java.version","1.3.0");

		osName = System.getProperty("os.name").toLowerCase();
		archName = System.getProperty("os.arch").toLowerCase();

		if (osName.equals("mac os x")) osName = "mac-os-x";
		if (osName.indexOf("windows") != -1) osName = "windows";
		if (osName.indexOf("os/2") != -1) osName = "os2";
		if (archName.indexOf("86") != -1) archName = "x86";

		if (debug) {
			System.err.println("[Xrefactory] os == " + osName);
			System.err.println("[Xrefactory] arch == " + archName);
		}
		if (osName.toLowerCase().indexOf("windows") != -1) {
			osCode = OS_WINDOWS;
			rootDir = "C:\\";
			deftmp = "C:\\";
			defslash = "\\";
			defcpsep = ";";
			defcfile = "_xrefrc";
			deftask = "xref.exe";
			homeDir = System.getProperty("user.home","c:\\");
		} else if (osName.equals("os2")) {
			osCode = OS_OS2;
			rootDir = "C:\\";
			deftmp = "C:\\";
			defslash = "\\";
			defcpsep = ";";
			defcfile = ".xrefrc";
			deftask = "xref.exe";
			homeDir = System.getProperty("user.home","c:\\");
		} else {
			osCode = OS_OTHER;
			rootDir = "/";
			deftmp = "/tmp/";
			defslash = "/";
			defcpsep = ":";
			defcfile = ".xrefrc";	
			deftask = "xref";
			homeDir = System.getProperty("user.home","~/");
		}

		downloadtask = "xref-" + Protocol.XREF_VERSION_NUMBER + "-" + osName + "-" + archName + ".exe";

		xrefTaskUrl = xrefTaskDirUrl + downloadtask;
		slash = System.getProperty("file.separator", defslash);
		classPathSeparator = System.getProperty("path.separator", defcpsep);

   		tmpDirectoryPath = System.getProperty("java.io.tmpdir", deftmp);

		if (tmpDirectoryPath.substring(tmpDirectoryPath.length()) != slash) {
			tmpDirectoryPath = tmpDirectoryPath + slash;
		}
		if (homeDir.substring(homeDir.length()) != slash) {
			homeDir = homeDir + slash;
		}

		javaHome = System.getProperty("java.home", rootDir);
		if (javaHome.substring(javaHome.length()) != slash) {
			javaHome = javaHome + slash;
		}
		
		instdir = "/";
 		String cp = System.getProperty("java.class.path");
		if (cp!=null) {
			//& JOptionPane.showMessageDialog(this, cp);
			int i = cp.toLowerCase().indexOf("jedit.jar");
			//&if (i == -1) i = cp.toLowerCase().indexOf("xrefac~1.jar");
			if (i != -1) {
				String ss = cp.substring(0, i);
				int j = ss.lastIndexOf(classPathSeparator);
				if (j != -1) ss = ss.substring(j+1);
				instdir = ss + "jars" + slash;
			}
		}
		pluginInstallationPath = "";
		xrefTaskPath = "xref";
		String path0 = jEdit.getSettingsDirectory();
		if (path0!=null) path0 = path0+slash+"jars"+slash;
		String path1 = homeDir+".jedit"+slash+"jars"+slash;
		String path2 = homeDir+"jedit"+slash+"jars"+slash;
		if (path0!=null && new File(path0+"Xrefactory.jar").exists()) {
			pluginInstallationPath = path0;
		} else if (new File(path1+"Xrefactory.jar").exists()) {
			pluginInstallationPath = path1;
		} else if (new File(path2+"Xrefactory.jar").exists()) {
			pluginInstallationPath = path2;
		} else if (new File(instdir+"Xrefactory.jar").exists()) {
			pluginInstallationPath = instdir;
		} else {
			System.err.println("[Xrefactory] can't find installation directory.");
			System.err.println("[Xrefactory] neither "+path0+", "+path1+", ");
			System.err.println("[Xrefactory] "+path2+" or "+instdir+" contains Xrefactory.jar");
		}
		xrefTaskPath = pluginInstallationPath+"Xrefactory"+slash+deftask;

		jdkClassPath = javaHome + "lib" + slash + "rt.jar";
		configurationFile = jEdit.getProperty(configurationFileOption);
		if (configurationFile==null || configurationFile.equals("none")) {
			configurationFile = new File(homeDir + defcfile).getAbsolutePath();
			jEdit.setProperty(configurationFileOption, configurationFile);
		}
		tagFilesDirectory = homeDir + "Xrefs" + slash;
		tagProcessingReportFile = tmpDirectoryPath + xrefLogFileSingleName;
		activeProject = null;
	}

	public static void checkIfXrefTaskExists() {
		if (xrefTaskYetChecked) return;
		xrefTaskYetChecked = true;
		File taskfile = new File(xrefTaskPath);
		if ((! taskfile.exists()) && ! jEdit.getProperty(tryInstallXrefOption).equals(Protocol.XREF_VERSION_NUMBER)){
			Object confirm = JOptionPane.showInputDialog(
				null,
				"You have  installed Xrefactory plugin. It requires shareware 'xref'\nnot  distributed with  the  plugin. However, xref can be  freely\ndownloaded   and   evaluated.   Can   I   download   xref   into\nfile: "+xrefTaskPath+"?",
				"Xrefactory installation",
				JOptionPane.QUESTION_MESSAGE,
				null,
				new String[] {"Yes", "No", "No and do not display this dialog anymore"},
				"Yes");
			if ("Yes".equals(confirm)) {
				downloadXrefTask(xrefTaskUrl, xrefTaskPath);
			} else if (answerNoAndDoNotAskAnymore.equals (confirm)) {
				// never
				jEdit.setProperty(tryInstallXrefOption, Protocol.XREF_VERSION_NUMBER);
			}
		}
		if (! taskfile.exists()) xrefTaskPath = "xref";
	}

	public static void checkVersionCorrespondance(String taskVersion, DispatchData data) {
		if (! taskVersion.equals(Protocol.XREF_VERSION_NUMBER)) {
			int confirm = JOptionPane.showConfirmDialog(
				getProbableParent(data.callerComponent),
				"You have installed Xrefactory version "+Protocol.XREF_VERSION_NUMBER+" while using\nxref  task version  "+taskVersion+". Version mismatch  may cause\nproblems during  execution. Can I download correct  version of\nxref task?",
				"Xrefactory Problem",
				JOptionPane.YES_NO_OPTION,
				JOptionPane.QUESTION_MESSAGE);
			if (confirm == JOptionPane.YES_OPTION) {
				xbTask.killThis(false);
				downloadXrefTask(xrefTaskUrl, xrefTaskPath);
				data.panic = true;		// restart task
			}
		}
	}

	public static void checkBrowserTask() {
		if (xbTask==null) {
			// this is the first invocation of Xrefactory
			cleanOldTmpFiles();
			checkIfXrefTaskExists();
			xbTask = new BrowserTask();
			// check version
			DispatchData ndata = new DispatchData(xbTask, view);
			XrefCharBuffer receipt = ndata.xTask.callProcessSingleOpt(
				"-olcheckversion=" + Protocol.XREF_VERSION_NUMBER, ndata);
			Dispatch.dispatch(receipt, ndata);
			if (ndata.panic) {
				xbTask = new BrowserTask();
			}
		}
	}

	public static void setGlobalValuesNoActiveProject(View view) {
		s.view = view;
		panic = false;
		checkBrowserTask();
		//& setGlobalValues();
	}

	public static void setGlobalValues(View view, boolean projectCreationAllowed) {
		setGlobalValuesNoActiveProject(view);
		//&if (activeProject == null) {
		activeProject = computeActiveProject(s.view, projectCreationAllowed);
		//&}
	}

	public static Position getPosition(View v) {
		Position res = new Position(
			v, 
			v.getBuffer().getPath(),
			v.getTextArea().getCaretPosition()
			);
		return(res);
	}

	public static void moveToPosition(View view, String file, int off) {
		Buffer buf = jEdit.openFile(view, file);
		// wait until operation completes
		VFSManager.waitForRequests();
		JEditTextArea texta = view.getTextArea();
		texta.setCaretPosition(off);
		VFSManager.waitForRequests();
	}

	public static void moveToPosition(Position p) {
		moveToPosition(p.view, p.file, p.offset);
	}

	public static void moveToPosition(View view,String file, int line, int col) {
		Buffer buf = jEdit.openFile(view, file);
		VFSManager.waitForRequests();
		JEditTextArea texta = view.getTextArea();
		int off = 0;
		int offmax = 0;
		try {
			off = texta.getLineStartOffset(line-1);
			offmax = texta.getLineEndOffset(line-1);
			off = off + col;
			if (off > offmax) off = offmax;
			texta.setCaretPosition(off);
			VFSManager.waitForRequests();
		} catch (Exception eee) {
			if (debug) System.err.println("Problem while moving to "+file+" "+line+" "+col);
		}
	}

	public static void assertt(boolean b) {
		if (! b) {
			(new Exception()).printStackTrace();
			JOptionPane.showMessageDialog(view, 
										  "An assertion Failed, an internal problem occurs.", 
										  "Xrefactory Error", 
										  JOptionPane.ERROR_MESSAGE);
		}
	}

	public static int countLines(String s) {
		int i,n;
		i= -1; n=0;
		while((i=s.indexOf('\n', i+1)) != -1) n++;
		if (n>0 || s.length()>0) n++;
		return(n);
	}
	
	public static String sprintOption(String ss) {
		String res;
		int i,ii;
		if (ss.indexOf(" ") == -1 
			&& ss.indexOf("\"") == -1 
			&& (!ss.equals("")) 
			&& !(ss.charAt(0)=='"')
			) {
			res = ss;
		} else {
			res = "\"";
			ii = 0;
			while ((i=ss.indexOf('"',ii))!=-1) {
				res += ss.substring(ii, i) + "${dq}";
				ii = i+1;
			}
			res += ss.substring(ii);
			res += "\"";
		}
		return(res);
	}

	public static boolean stringArrayEqual(String[] a1, String[] a2) {
		if (a1.length != a2.length) return(false);
		for(int i=0; i<a1.length; i++) {
			if (! a1[i].equals(a2[i])) return(false);
		}
		return(true);
	}

	public static int skipNumber(XrefCharBuffer ss, int i, int len) {
		char	c;
		c = ss.buf[i];
		while (i<len && Character.isDigit(c)) {
			i++;
			c = ss.buf[i];
		}
		return(i);
	}
	public static int skipBlank(XrefCharBuffer ss, int i, int len) {
		while (i<len && Character.isWhitespace(ss.buf[i])) i++;
		return(i);
	}


	private static GridBagConstraints gbc = new GridBagConstraints();
	
	public static void addGbcComponent(Container pane, 
									   int x, int y, 
									   int w, int h, 
									   int wx, int wy, 
									   int fill,
									   Component cc) {
		gbc.gridx = x; gbc.gridy = y; 
		gbc.gridwidth = w; gbc.gridheight = h;
		gbc.weightx = wx; gbc.weighty = wy; gbc.fill = fill;
		pane.add(cc, gbc);
	}

	public static void addButtonLine(JPanel panel, int y, JComponent [] components,
									 boolean borders) {
		int i,x;
		x = -1;
		
		if (borders) {
			x++;
			addGbcComponent(panel, x,y, 1,1, 10,10, 
							GridBagConstraints.HORIZONTAL,
							new JPanel());
		}

		for(i=0; i<components.length; i++) {
			x++;
			addGbcComponent(panel, x,y, 1,1, 1,10, 
							GridBagConstraints.HORIZONTAL,
							components[i]);
		}

		if (borders) {
			x++;
			addGbcComponent(panel, x,y, 1,1, 10,10, 
							GridBagConstraints.HORIZONTAL,
							new JPanel());
		}
	}

	public static void addExtraButtonLine(Container thiss, int x, int y, int dx, int dy,
										  int wx, int wy, JComponent [] buttons,
										  boolean borders) {
		JPanel bp = new JPanel();
		bp.setLayout(new GridBagLayout());
		addButtonLine(bp, 0, buttons, borders);
		addGbcComponent(thiss, x, y, dx, dy, wx, wy, 
						GridBagConstraints.HORIZONTAL,
						bp);
	}

	public static void buttonsSetFont(JComponent [] buttons, Font font) {
		int i;
		for(i=0; i<buttons.length; i++) buttons[i].setFont(font);
	}

	public static void buttonsAddActionListener(JButton [] buttons, ActionListener listener) {
		int i;
		for(i=0; i<buttons.length; i++) buttons[i].addActionListener(listener);
	}

	public static String computeActiveProject(Component parent, boolean projectCreationAllowed) {
		DispatchData ndata = new DispatchData(xbTask, parent);
		ndata.projectCreationAllowed = projectCreationAllowed;
		xbTask.tmpOption.clear();
		xbTask.tmpOption.add("-olcxgetprojectname");
		//& xbTask.addCommonOptions(xbTask.tmpOption, ndata);
		xbTask.addCurrentFileOptions(xbTask.tmpOption);
		XrefCharBuffer receipt = xbTask.callProcess(xbTask.tmpOption, ndata);
		Dispatch.dispatch(receipt, ndata);
		if (ndata.panic) return(null);
		return(ndata.info);
	}

	static void performMovingRefactoring(String moption, String fieldOption) {
		if (targetLine>0 && !targetFile.equals("")) {
			XrefStringArray xroption = new XrefStringArray();
			xroption.add(moption);
			xroption.add("-commentmovinglevel=" + 
						 jEdit.getIntegerProperty(optRefactoryCommentMovingLevel,0));
			xroption.add("-movetargetfile="+targetFile);
			xroption.add("-rfct-param1="+targetLine);
			if (fieldOption!=null) {
				xroption.add("-rfct-param2="+fieldOption);
			}
			Refactorings.mainRefactorerInvocation(xroption,false);
		}
	}
	
	public static String computeSomeInformationInXref(Component parent, String option) {
		DispatchData ndata = new DispatchData(xbTask, parent);
		XrefCharBuffer receipt = ndata.xTask.callProcessOnFileNoSaves(
			new String[]{option}, 
			ndata