Java Doc for TextAreaExtension.java in  » Swing-Library » jEdit » org » gjt » sp » jedit » textarea » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Swing Library » jEdit » org.gjt.sp.jedit.textarea 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.gjt.sp.jedit.textarea.TextAreaExtension

All known Subclasses:   org.gjt.sp.jedit.textarea.InputMethodSupport,
TextAreaExtension
abstract public class TextAreaExtension (Code)
Subclasses of this class can perform custom painting and tool tip handling in the text area and gutter.
See Also:   TextAreaPainter.addExtension(TextAreaExtension)
See Also:   TextAreaPainter.removeExtension(TextAreaExtension)
See Also:   Gutter.addExtension(TextAreaExtension)
See Also:   Gutter.removeExtension(TextAreaExtension)
since:
   jEdit 4.0pre4
author:
   Slava Pestov
version:
   $Id: TextAreaExtension.java 5004 2004-03-28 00:07:27Z spestov $




Method Summary
public  StringgetToolTipText(int x, int y)
     Called by the text area when the mouse hovers over the location specified in the mouse event.
public  voidpaintInvalidLine(Graphics2D gfx, int screenLine, int y)
     Called by the text area when the extension is to paint a screen line which is not part of the buffer.
public  voidpaintScreenLineRange(Graphics2D gfx, int firstLine, int lastLine, int[] physicalLines, int[] start, int[] end, int y, int lineHeight)
     Paints a range of screen lines.
public  voidpaintValidLine(Graphics2D gfx, int screenLine, int physicalLine, int start, int end, int y)
     Called by the text area when the extension is to paint a screen line which has an associated physical line number in the buffer.



Method Detail
getToolTipText
public String getToolTipText(int x, int y)(Code)
Called by the text area when the mouse hovers over the location specified in the mouse event.
Parameters:
  x - The x co-ordinate
Parameters:
  y - The y co-ordinate
since:
   jEdit 4.0pre4



paintInvalidLine
public void paintInvalidLine(Graphics2D gfx, int screenLine, int y)(Code)
Called by the text area when the extension is to paint a screen line which is not part of the buffer. This can happen if the buffer is shorter than the height of the text area, for example.
Parameters:
  gfx - The graphics context
Parameters:
  screenLine - The screen line number
Parameters:
  y - The y co-ordinate of the top of the line'sbounding box
since:
   jEdit 4.0pre4



paintScreenLineRange
public void paintScreenLineRange(Graphics2D gfx, int firstLine, int lastLine, int[] physicalLines, int[] start, int[] end, int y, int lineHeight)(Code)
Paints a range of screen lines. The default implementation calls TextAreaExtension.paintValidLine(Graphics2D,int,int,int,int,int) and TextAreaExtension.paintInvalidLine(Graphics2D,int,int) .
Parameters:
  gfx - A graphics context
Parameters:
  firstLine - The first screen line
Parameters:
  lastLine - The last screen line
Parameters:
  physicalLines - The list of physical line numbers. Entries are-1 if the screen line is out of range.
Parameters:
  start - An array of screen line start offsets.
Parameters:
  end - An array of screen line end offsets
Parameters:
  y - The y co-ordinate
Parameters:
  lineHeight - The line height
since:
   jEdit 4.2pre2



paintValidLine
public void paintValidLine(Graphics2D gfx, int screenLine, int physicalLine, int start, int end, int y)(Code)
Called by the text area when the extension is to paint a screen line which has an associated physical line number in the buffer. Note that since one physical line may consist of several screen lines due to soft wrap, the start and end offsets of the screen line are passed in as well.
Parameters:
  gfx - The graphics context
Parameters:
  screenLine - The screen line number
Parameters:
  physicalLine - The physical line number
Parameters:
  start - The offset where the screen line begins, fromthe start of the buffer
Parameters:
  end - The offset where the screen line ends, from thestart of the buffer
Parameters:
  y - The y co-ordinate of the top of the line'sbounding box
since:
   jEdit 4.0pre4



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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