Java StyledDocument.render方法代碼示例

import javax.swing.text.StyledDocument; //導入方法依賴的package包/類
public DocLockedRun(int type, StyledDocument doc, int intValue, boolean readLock) {
    this.type = type;
    this.intResult = intValue;

    if (!readLock && (doc instanceof NbDocument.WriteLockable)) {
        ((NbDocument.WriteLockable) doc).runAtomic(this);
    } else {
        if (readLock && doc != null) {
            doc.render(this);
        } else {
            // if the document is not one of "NetBeans ready"
            // that supports locking we do not have many
            // chances to do something. Maybe check for AbstractDocument
            // and call writeLock using reflection, but better than
            // that, let's leave this simple for now and wait for
            // bug reports (if any appear)
            run();
        }
    }
}
 

import javax.swing.text.StyledDocument; //導入方法依賴的package包/類
void render() {
    StyledDocument d = mgr.getDoc();
    Object prev = DOCUMENT.get();

    try {
        if (d != null) {
            DOCUMENT.set(d);
            d.render(this);
        } else {
            DOCUMENT.set(mgr);
            this.run();
        }
    } finally {
        DOCUMENT.set(prev);
    }
}
 

import javax.swing.text.StyledDocument; //導入方法依賴的package包/類
private static Position getPosition(final StyledDocument doc, final int offset) {
    class Impl implements Runnable {
        private Position pos;
        public void run() {
            if (offset < 0 || offset >= doc.getLength())
                return ;

            try {
                pos = doc.createPosition(offset - NbDocument.findLineColumn(doc, offset));
            } catch (BadLocationException ex) {
                //should not happen?
                Logger.getLogger(ComputeAnnotations.class.getName()).log(Level.FINE, null, ex);
            }
        }
    }

    Impl i = new Impl();

    doc.render(i);

    return i.pos;
}
 

import javax.swing.text.StyledDocument; //導入方法依賴的package包/類
public void testDeadlock49178() throws Exception {
	// open the document
        final StyledDocument docu = support.openDocument();

        // Perform a modification so that notifyModify() gets called as supposed by the test
        // Otherwise notifyUnmodified() would not be called (there's no reason to call it in such case).
        docu.insertString(0, "a", null);

	// start closing it
	Thread closing = new Thread(new Runnable() { public void run() {
            support.close(false); // will block in notifyUnmodified()
	    closingDone = true;
	}});
	closing.start();

        Thread processing = new Thread(new Runnable() {
            boolean second = false;
            
            public void run() {
                if (!second) {
                    second = true;
                    docu.render(this);
//                    NbDocument.runAtomic(docu, this);
                } else { // inside readLock
                    support.createPositionRef(0, Position.Bias.Forward);
                    processingDone = true;
                }
            }
        });

        
        synchronized(waitLock) {
	    while (!inWait) waitLock.wait();
        }

        processing.start();
        
        Thread.sleep(1000);
        synchronized(waitLock) {
            shouldWait = false;
            waitLock.notifyAll();
        }
	
	closing.join(10000);
        processing.join(10000);
	assertNull("No exception thrown", exception);
	assertTrue("Closing thread finished", closingDone);
	assertTrue("Processing thread finished", processingDone);
    }