!614 // actionListener { !1000805 // awt { !include #1000943 // DelayedUpdate import java.awt.event.*; static class Console extends WindowAdapter implements WindowListener, ActionListener, Runnable { private JFrame frame; private JTextArea textArea; new StringBuffer buf; private Thread reader; private Thread reader2; private boolean quit; private final PipedInputStream pin=new PipedInputStream(); private final PipedInputStream pin2=new PipedInputStream(); final DelayedUpdate du = new DelayedUpdate(runnable { textArea.append(buf.substring(textArea.getText().length())); }); public Console() { // create all components and add them frame=new JFrame("JavaX Output"); /*Dimension screenSize=Toolkit.getDefaultToolkit().getScreenSize(); Dimension frameSize=new Dimension((int)(screenSize.width/2),(int)(screenSize.height/2)); int x=(int)(frameSize.width/2); int y=(int)(frameSize.height/2); frame.setBounds(x,y,frameSize.width,frameSize.height);*/ // put in right-bottom corner Rectangle r = GraphicsEnvironment.getLocalGraphicsEnvironment().getMaximumWindowBounds(); int w = 550, h = 200; frame.setBounds(r.x+r.width-w, r.y+r.height-h, w, h); textArea=new JTextArea(); textArea.setEditable(false); JButton button=new JButton("clear"); JButton buttonkill=new JButton("kill"); JPanel buttons = new JPanel(new GridLayout(1, 2)); buttons.add(button); buttons.add(buttonkill); frame.getContentPane().setLayout(new BorderLayout()); frame.getContentPane().add(new JScrollPane(textArea),BorderLayout.CENTER); frame.getContentPane().add(buttons,BorderLayout.SOUTH); frame.setVisible(true); //frame.addWindowListener(this); // disabled for now button.addActionListener(this); buttonkill.addActionListener(actionListener { print("Console: Kill button pressed!"); System.exit(0); }); try { PipedOutputStream pout=new PipedOutputStream(this.pin); System.setOut(new PrintStream(pout,true)); } catch (java.io.IOException io) { appendText("Couldn't redirect STDOUT to this console\n"+io.getMessage()); } catch (SecurityException se) { appendText("Couldn't redirect STDOUT to this console\n"+se.getMessage()); } try { PipedOutputStream pout2=new PipedOutputStream(this.pin2); System.setErr(new PrintStream(pout2,true)); } catch (java.io.IOException io) { appendText("Couldn't redirect STDERR to this console\n"+io.getMessage()); } catch (SecurityException se) { appendText("Couldn't redirect STDERR to this console\n"+se.getMessage()); } quit=false; // signals the Threads that they should exit // Starting two seperate threads to read from the PipedInputStreams // reader=new Thread(this); reader.setDaemon(true); reader.start(); // reader2=new Thread(this); reader2.setDaemon(true); reader2.start(); } public synchronized void windowClosed(WindowEvent evt) { quit=true; this.notifyAll(); // stop all threads try { reader.join(1000);pin.close(); } catch (Exception e){} try { reader2.join(1000);pin2.close(); } catch (Exception e){} System.exit(0); } public synchronized void windowClosing(WindowEvent evt) { frame.setVisible(false); // default behaviour of JFrame frame.dispose(); } public synchronized void actionPerformed(ActionEvent evt) { textArea.setText(""); buf = new StringBuffer; } public synchronized void run() { try { while (Thread.currentThread()==reader) { try { this.wait(100);}catch(InterruptedException ie) {} if (pin.available()!=0) { String input=this.readLine(pin); appendText(input); } if (quit) return; } while (Thread.currentThread()==reader2) { try { this.wait(100);}catch(InterruptedException ie) {} if (pin2.available()!=0) { String input=this.readLine(pin2); appendText(input); } if (quit) return; } } catch (Exception e) { appendText("\nConsole reports an Internal error."); appendText("The error is: "+e); } } public synchronized String readLine(PipedInputStream in) throws IOException { String input=""; do { int available=in.available(); if (available==0) break; byte b[]=new byte[available]; in.read(b); input=input+new String(b,0,b.length); }while( !input.endsWith("\n") && !input.endsWith("\r\n") && !quit); return input; } public void appendText(String s) { buf.append(s); /*textArea.append(s); textArea.setCaretPosition(textArea.getText().length()); // Hopefully not too slow... */ du.trigger(); } }
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ID | Author/Program | Comment | Date |
---|---|---|---|
1070 | stefan | Thanks to http://www.comweb.nl/java/Console/Console.html | 2015-08-28 20:21:50 |
Snippet ID: | #1000818 |
Snippet name: | Console |
Eternal ID of this version: | #1000818/1 |
Text MD5: | 5940e76abac8d5dfc4c8c5e126a808d0 |
Author: | stefan |
Category: | javax |
Type: | JavaX fragment (include) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2015-09-11 13:54:20 |
Source code size: | 4841 bytes / 175 lines |
Pitched / IR pitched: | No / Yes |
Views / Downloads: | 960 / 1351 |
Referenced in: | [show references] |