gnu.jemacs.buffer
Class BufferWriter

java.lang.Object
  java.io.Writer
      gnu.jemacs.buffer.BufferWriter

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.Appendable, java.lang.Runnable

public class BufferWriter
extends java.io.Writer
implements java.lang.Runnable

A Writer that writes at a Buffer's point or a Marker.

Field Summary

Fields inherited from class java.io.Writer

lock

Constructor Summary

BufferWriter(Buffer buffer)

BufferWriter(Marker marker, boolean adjustPoint)

Method Summary

void	close()
void	flush()
int	handleCSICommand(char ch, int param, int position) Process a single command following CSI.
void	handleEscapeBracket(char ch)
void	handleOperatingSystemCommand(char ch)
int	handleSetCharacterRendition(int param, int position) Process an SGR command with the given code.
void	moveColumns(int count) Move some number of columns right (or left if count < 0).
void	put(char[] data, int off, int len)
void	removeChars(int count) Delete characters - but only in current screen line.
void	run()
void	unTabifyRestOfLine()
void	write(char[] data, int off, int len)
void	write(int ch)
void	write1(int ch)

Methods inherited from class java.io.Writer

append, append, append, write, write, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BufferWriter

public BufferWriter(Marker marker,
                    boolean adjustPoint)

BufferWriter

public BufferWriter(Buffer buffer)

Method Detail

handleSetCharacterRendition

public int handleSetCharacterRendition(int param,
                                       int position)

Process an SGR command with the given code.

Parameters:

param - parameter value from the escape sequence

position - following offset in savedOutput array

Returns:

updated value of position, if we gobble multiple parameters

handleOperatingSystemCommand

public void handleOperatingSystemCommand(char ch)

handleCSICommand

public int handleCSICommand(char ch,
                            int param,
                            int position)

Process a single command following CSI. CSI is "Control Sequence Introducer" - i.e. ESC [.

Parameters:

ch - the control command

param - parameter value from the escape sequence

position - following offset in savedOutput array

Returns:

updated value of position, if we gobble multiple parameters

handleEscapeBracket

public void handleEscapeBracket(char ch)

unTabifyRestOfLine

public void unTabifyRestOfLine()

removeChars

public void removeChars(int count)

Delete characters - but only in current screen line.

moveColumns

public void moveColumns(int count)

Move some number of columns right (or left if count < 0).

put

public void put(char[] data,
                int off,
                int len)

write

public void write(int ch)

Overrides:

write in class java.io.Writer

write1

public void write1(int ch)

write

public void write(char[] data,
                  int off,
                  int len)

Specified by:

write in class java.io.Writer

flush

public void flush()

Specified by:

flush in interface java.io.Flushable

Specified by:

flush in class java.io.Writer

close

public void close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in class java.io.Writer

run

public void run()

Specified by:

run in interface java.lang.Runnable