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/*******************************************************************************
* Copyright (c) 2000, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.console;
import java.io.IOException;
import java.io.OutputStream;
import org.eclipse.swt.graphics.Color;
import org.eclipse.ui.WorkbenchEncoding;
import org.eclipse.ui.internal.console.IOConsolePartitioner;
/**
* OutputStream used to write to an IOConsole.
* <p>
* Clients are not intended to instantiate this class directly, instead
* use <code>IOConsole.newOutputStream()</code>.
* </p>
* @since 3.1
*/
public class IOConsoleOutputStream extends OutputStream {
/**
* Flag indicating whether this stream has been closed.
*/
private boolean closed = false;
/**
* The console's document partitioner.
*/
private IOConsolePartitioner partitioner;
/**
* The console this stream is attached to.
*/
private IOConsole console;
/**
* Flag indicating that the console should be activated when data
* is written to this stream.
*/
private boolean activateOnWrite = false;
/**
* The color used to decorate data written to this stream.
*/
private Color color;
/**
* The font style used to decorate data written to this stream.
*/
private int fontStyle;
private String fEncoding;
private String fDefaultEncoding = WorkbenchEncoding.getWorkbenchDefaultEncoding();
/**
* Constructs a new output stream on the given console.
*
* @param console I/O console
*/
IOConsoleOutputStream(IOConsole console) {
this.console = console;
this.partitioner = (IOConsolePartitioner) console.getPartitioner();
}
/**
* Returns the font style used to decorate data written to this stream.
*
* @return the font style used to decorate data written to this stream
*/
public int getFontStyle() {
return fontStyle;
}
/**
* Sets the font style to be used to decorate data written to this stream.
*
* @param newFontStyle the font style to be used to decorate data written to this stream
*/
public void setFontStyle(int newFontStyle) {
if (newFontStyle != fontStyle) {
int old = fontStyle;
fontStyle = newFontStyle;
console.firePropertyChange(this, IConsoleConstants.P_FONT_STYLE, new Integer(old), new Integer(fontStyle));
}
}
/**
* Returns whether the console this stream is writing to will be activated when this stream
* is written to.
*
* @return whether the console this stream is writing to will be activated when this stream
* is written to.
*/
public boolean isActivateOnWrite() {
return activateOnWrite;
}
/**
* Sets whether to activate the console this stream is writing to when this stream
* is written to.
*
* @param activateOnWrite whether the console this stream is writing to will be activated when this stream
* is written to.
*/
public void setActivateOnWrite(boolean activateOnWrite) {
this.activateOnWrite = activateOnWrite;
}
/**
* Sets the color of this stream. Use <code>null</code> to indicate
* the default color.
*
* @param color color of this stream, or <code>null</code>
*/
public void setColor(Color newColor) {
Color old = color;
if (old == null || !old.equals(newColor)) {
color = newColor;
console.firePropertyChange(this, IConsoleConstants.P_STREAM_COLOR, old, newColor);
}
}
/**
* Returns the color of this stream, or <code>null</code>
* if default.
*
* @return the color of this stream, or <code>null</code>
*/
public Color getColor() {
return color;
}
/*
* (non-Javadoc)
* @see java.io.OutputStream#close()
*/
public synchronized void close() throws IOException {
if(closed) {
throw new IOException("Output Stream is closed"); //$NON-NLS-1$
}
console.streamClosed(this);
closed = true;
partitioner = null;
}
/*
* (non-Javadoc)
* @see java.io.OutputStream#flush()
*/
public void flush() throws IOException {
if(closed) {
throw new IOException("Output Stream is closed"); //$NON-NLS-1$
}
}
/*
* (non-Javadoc)
* @see java.io.OutputStream#write(byte[], int, int)
*/
public void write(byte[] b, int off, int len) throws IOException {
if (fEncoding!=null && !fEncoding.equals(fDefaultEncoding)) {
encodedWrite(new String(b, off, len, fEncoding));
} else {
encodedWrite(new String(b, off, len));
}
}
/*
* (non-Javadoc)
* @see java.io.OutputStream#write(byte[])
*/
public void write(byte[] b) throws IOException {
write(b, 0, b.length);
}
/*
* (non-Javadoc)
* @see java.io.OutputStream#write(int)
*/
public void write(int b) throws IOException {
write(new byte[] {(byte)b}, 0, 1);
}
/**
* Writes a string to the attached console.
*
* @param str the string to write to the attached console.
* @throws IOException if the stream is closed.
*/
public synchronized void write(String str) throws IOException {
if (fEncoding!=null && !fEncoding.equals(fDefaultEncoding)) {
byte[] defaultBytes = str.getBytes();
str = new String(defaultBytes, fEncoding);
}
encodedWrite(str);
}
private void encodedWrite(String encodedString) throws IOException {
if(closed) {
throw new IOException("Output Stream is closed"); //$NON-NLS-1$
}
partitioner.streamAppended(this, encodedString);
if (activateOnWrite) {
console.activate();
} else {
ConsolePlugin.getDefault().getConsoleManager().warnOfContentChange(console);
}
}
/**
* Sets the character encoding used to interpret characters written to this steam.
*
* @param encoding endcoding identifier
*/
public void setEncoding(String encoding) {
fEncoding = encoding;
}
}
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