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## org.gjt.sp.jedit.textarea
Class JEditTextArea

    java.lang.Object
      java.awt.Component
          java.awt.Container
              javax.swing.JComponent
                  org.gjt.sp.jedit.textarea.JEditTextArea

All Implemented Interfaces:
  java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

public class JEditTextArea
extends javax.swing.JComponent

jEdit's text component.

Unlike most other text editors, the selection API permits selection and concurrent manipulation of multiple, non-contiguous regions of text. Methods in this class that deal with selecting text rely upon classes derived the `Selection` class.

Version:
  $Id: JEditTextArea.java,v 1.320 2004/08/12 22:42:45 spestov Exp $
Author:
  Slava Pestov, John Gellene (API documentation)
See Also:
  Serialized Form

Nested Class Summary

Nested classes inherited from class javax.swing.JComponent
`javax.swing.JComponent.AccessibleJComponent`

Nested classes inherited from class java.awt.Container
`java.awt.Container.AccessibleAWTContainer`

Nested classes inherited from class java.awt.Component
`java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy`

Field Summary
`static int` | `ELECTRIC_SCROLL`
`static int` | `NO_SCROLL`
`static int` | `NORMAL_SCROLL`
`java.lang.Exception` | `trace`

Fields inherited from class javax.swing.JComponent
`accessibleContext, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW`

Fields inherited from class java.awt.Component
`BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT`

Fields inherited from interface java.awt.image.ImageObserver
`ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH`

Constructor Summary
`JEditTextArea(View view)` Creates a new JEditTextArea.

Method Summary
`void` | `addCaretListener(javax.swing.event.CaretListener listener)` Adds a caret change listener to this text area.
`void` | `addExplicitFold()` Surrounds the selection with explicit fold markers.
`void` | `addLeftOfScrollBar(java.awt.Component comp)` Adds a component to the box left of the vertical scroll bar.
`void` | `addMarker()` Adds a marker at the caret position.
`void` | `addNotify()` Called by the AWT when this component is added to a parent.
`void` | `addScrollListener(ScrollListener listener)` Adds a scroll listener to this text area.
`void` | `addStructureMatcher(StructureMatcher matcher)` Adds a structure matcher.
`void` | `addTopComponent(java.awt.Component comp)` Adds a component above the gutter, text area, and vertical scroll bar.
`void` | `addToSelection(Selection selection)` Adds to the selection.
`void` | `addToSelection(Selection[] selection)` Adds to the selection.
`void` | `backspace()` Deletes the character before the caret, or the selection, if one is active.
`void` | `backspaceWord()` Deletes the word before the caret.
`void` | `backspaceWord(boolean eatWhitespace)` Deletes the word before the caret.
`void` | `blinkCaret()` Blinks the caret.
`void` | `centerCaret()` Centers the caret on the screen.
`void` | `collapseFold()` Like `DisplayManager.collapseFold(int)`, but also moves the caret to the first line of the fold.
`void` | `delete()` Deletes the character after the caret.
`void` | `deleteLine()` Deletes the line containing the caret.
`void` | `deleteParagraph()` Deletes the paragraph containing the caret.
`void` | `deleteToEndOfLine()` Deletes from the caret to the end of the current line.
`void` | `deleteToStartOfLine()` Deletes from the caret to the beginning of the current line.
`void` | `deleteWord()` Deletes the word in front of the caret.
`void` | `deleteWord(boolean eatWhitespace)` Deletes the word in front of the caret.
`void` | `dispose()` Plugins and macros should not call this method.
`void` | `expandFold(boolean fully)` Like `DisplayManager.expandFold(int,boolean)`, but also moves the caret to the first sub-fold.
`void` | `extendSelection(int offset, int end)` Extends the selection at the specified offset, or creates a new one if there is no selection at the specified offset.
`void` | `extendSelection(int offset, int end, int extraStartVirt, int extraEndVirt)` Extends the selection at the specified offset, or creates a new one if there is no selection at the specified offset.
`void` | `formatParagraph()` Formats the paragraph containing the caret.
`Buffer` | `getBuffer()` Returns the buffer this text area is editing.
`int` | `getBufferLength()` Returns the length of the buffer.
`int` | `getCaretLine()` Returns the line number containing the caret.
`int` | `getCaretPosition()` Returns a zero-based index of the caret position.
`DisplayManager` | `getDisplayManager()` Returns the display manager used by this text area.
`java.lang.reflect.Method` | `getDragAndDropCallback()` Drag and drop of text in jEdit is implementing using jEdit 1.4 APIs, however since jEdit must run with Java 1.3, this class only has the necessary support to call a hook method via reflection.
`int` | `getElectricScroll()` Returns the number of lines from the top and button of the text area that are always visible.
`int` | `getFirstLine()` Returns the vertical scroll bar position.
`int` | `getFirstPhysicalLine()` Returns the first visible physical line index.
`boolean` | `getFocusCycleRoot()` Java 1.4 compatibility fix to make Tab traversal work in a sane manner.
`boolean` | `getFocusTraversalKeysEnabled()` Java 1.4 compatibility fix to make Tab key work.
`Gutter` | `getGutter()` Returns the gutter to the left of the text area or null if the gutter is disabled
`int` | `getHorizontalOffset()` Returns the horizontal offset of drawn lines.
`int` | `getLastPhysicalLine()` Returns the last visible physical line index.
`int` | `getLineCount()` Returns the number of physical lines in the buffer.
`int` | `getLineEndOffset(int line)` Returns the end offset of the specified line.
`int` | `getLineLength(int line)` Returns the length of the specified line.
`int` | `getLineOfOffset(int offset)` Returns the line containing the specified offset.
`int` | `getLineStartOffset(int line)` Returns the start offset of the specified line.
`java.lang.String` | `getLineText(int lineIndex)` Returns the text on the specified line.
`void` | `getLineText(int lineIndex, javax.swing.text.Segment segment)` Copies the text on the specified line into a segment.
`int` | `getMagicCaretPosition()` Returns an internal position used to keep the caret in one column while moving around lines of varying lengths.
`int` | `getMarkLine()` Deprecated. Do not use.
`int` | `getMarkPosition()` Deprecated. Do not use.
`TextAreaPainter` | `getPainter()` Returns the object responsible for painting this text area.
`int` | `getPhysicalLineOfScreenLine(int screenLine)` Returns the physical line number that contains the specified screen line.
`javax.swing.JPopupMenu` | `getRightClickPopup()` Returns the right click popup menu.
`int` | `getScreenLineEndOffset(int line)` Returns the end offset of the specified screen (wrapped) line.
`int` | `getScreenLineOfOffset(int offset)` Returns the screen (wrapped) line containing the specified offset.
`int` | `getScreenLineStartOffset(int line)` Returns the start offset of the specified screen (wrapped) line.
`int[]` | `getSelectedLines()` Returns a sorted array of line numbers on which a selection or selections are present.
`java.lang.String` | `getSelectedText()` Returns the text in all active selections, with a newline between each text chunk.
`java.lang.String` | `getSelectedText(Selection s)` Returns the text in the specified selection.
`java.lang.String` | `getSelectedText(java.lang.String separator)` Returns the text in all active selections.
`Selection[]` | `getSelection()` Returns the current selection.
`Selection` | `getSelectionAtOffset(int offset)` Returns the selection containing the specific offset, or `null` if there is no selection at that offset.
`int` | `getSelectionCount()` Returns the number of selections.
`int` | `getSelectionEnd()` Deprecated. Instead, obtain a Selection instance using any means, and call its `getEnd()` method
`int` | `getSelectionEnd(int line)` Deprecated. Instead, obtain a Selection instance using any means, and call its `getEnd(int)` method
`int` | `getSelectionEndLine()` Deprecated. Instead, obtain a Selection instance using any means, and call its `getEndLine()` method
`int` | `getSelectionStart()` Deprecated. Instead, obtain a Selection instance using any means, and call its `getStart()` method
`int` | `getSelectionStart(int line)` Deprecated. Instead, obtain a Selection instance using any means, and call its `getStart(int)` method
`int` | `getSelectionStartLine()` Deprecated. Instead, obtain a Selection instance using any means, and call its `getStartLine()` method
`StructureMatcher.Match` | `getStructureMatch()` Returns the structure element (bracket, or XML tag, etc) matching the one before the caret.
`java.lang.String` | `getText()` Returns the entire text of this text area.
`java.lang.String` | `getText(int start, int len)` Returns the specified substring of the buffer.
`void` | `getText(int start, int len, javax.swing.text.Segment segment)` Copies the specified substring of the buffer into a segment.
`View` | `getView()` Returns this text area's view.
`int` | `getVisibleLines()` Returns the number of lines visible in this text area.
`void` | `goToBufferEnd(boolean select)` Moves the caret to the end of the buffer.
`void` | `goToBufferStart(boolean select)` Moves the caret to the beginning of the buffer.
`void` | `goToEndOfLine(boolean select)` Moves the caret to the end of the current line.
`void` | `goToEndOfWhiteSpace(boolean select)` Moves the caret to the last non-whitespace character of the current line.
`void` | `goToFirstVisibleLine(boolean select)` Moves the caret to the first visible line.
`void` | `goToLastVisibleLine(boolean select)` Moves the caret to the last visible line.
`void` | `goToMarker(char shortcut, boolean select)` Moves the caret to the marker with the specified shortcut.
`void` | `goToMatchingBracket()` Moves the caret to the bracket matching the one before the caret.
`void` | `goToNextBracket(boolean select)` Moves the caret to the next closing bracket.
`void` | `goToNextCharacter(boolean select)` Moves the caret to the next character.
`void` | `goToNextFold(boolean select)` Moves the caret to the next fold.
`void` | `goToNextLine(boolean select)` Move the caret to the next line.
`void` | `goToNextMarker(boolean select)` Moves the caret to the next marker.
`void` | `goToNextPage(boolean select)` Moves the caret to the next screenful.
`void` | `goToNextParagraph(boolean select)` Moves the caret to the start of the next paragraph.
`void` | `goToNextWord(boolean select)` Moves the caret to the start of the next word.
`void` | `goToNextWord(boolean select, boolean eatWhitespace)` Moves the caret to the start of the next word.
`void` | `goToParentFold()` Moves the caret to the fold containing the one at the caret position.
`void` | `goToPrevBracket(boolean select)` Moves the caret to the previous bracket.
`void` | `goToPrevCharacter(boolean select)` Moves the caret to the previous character.
`void` | `goToPrevFold(boolean select)` Moves the caret to the previous fold.
`void` | `goToPrevLine(boolean select)` Moves the caret to the previous line.
`void` | `goToPrevMarker(boolean select)` Moves the caret to the previous marker.
`void` | `goToPrevPage(boolean select)` Moves the caret to the previous screenful.
`void` | `goToPrevParagraph(boolean select)` Moves the caret to the start of the previous paragraph.
`void` | `goToPrevWord(boolean select)` Moves the caret to the start of the previous word.
`void` | `goToPrevWord(boolean select, boolean eatWhitespace)` Moves the caret to the start of the previous word.
`void` | `goToStartOfLine(boolean select)` Moves the caret to the beginning of the current line.
`void` | `goToStartOfWhiteSpace(boolean select)` Moves the caret to the first non-whitespace character of the current line.
`void` | `handlePopupTrigger(java.awt.event.MouseEvent evt)` Do the same thing as right-clicking on the text area.
`void` | `indentSelectedLines()` Indents all selected lines.
`void` | `insertEnterAndIndent()`
`void` | `insertTabAndIndent()`
`void` | `invalidateLine(int line)` Marks a line as needing a repaint.
`void` | `invalidateLineRange(int start, int end)` Marks a range of physical lines as needing a repaint.
`void` | `invalidateScreenLineRange(int start, int end)` Marks a range of screen lines as needing a repaint.
`void` | `invalidateSelectedLines()` Repaints the lines containing the selection.
`void` | `invertSelection()` Inverts the selection.
`boolean` | `isCaretBlinkEnabled()` Returns true if the caret is blinking, false otherwise.
`boolean` | `isDragEnabled()` Returns if drag and drop of text is enabled.
`boolean` | `isDragInProgress()` Drag and drop of text in jEdit is implementing using jEdit 1.4 APIs, however since jEdit must run with Java 1.3, this class only has the necessary support to call a hook method via reflection.
`boolean` | `isEditable()` Returns true if this text area is editable, false otherwise.
`boolean` | `isMultipleSelectionEnabled()` Returns if multiple selection is enabled.
`boolean` | `isOverwriteEnabled()` Returns true if overwrite mode is enabled, false otherwise.
`boolean` | `isQuickCopyEnabled()` Returns if clicking the middle mouse button pastes the most recent selection (% register), and if Control-dragging inserts the selection at the caret.
`boolean` | `isRectangularSelectionEnabled()` Returns if rectangular selection is enabled.
`boolean` | `isRightClickPopupEnabled()` Returns if the right click popup menu is enabled.
`boolean` | `isSelectionRectangular()` Deprecated. Instead, check if the appropriate Selection is an instance of the Selection.Rect class.
`void` | `joinLines()` Joins the current and the next line.
`void` | `lineComment()` Prepends each line of the selection with the line comment string.
`boolean` | `lineInStructureScope(int line)` Returns if the specified line is contained in the currently matched structure's scope.
`void` | `moveCaretPosition(int newCaret)` Sets the caret position without deactivating the selection.
`void` | `moveCaretPosition(int newCaret, boolean doElectricScroll)` Sets the caret position without deactivating the selection.
`void` | `moveCaretPosition(int newCaret, int scrollMode)` Sets the caret position without deactivating the selection.
`void` | `narrowToFold()` Hides all lines except those in the fold containing the caret.
`void` | `narrowToSelection()` Hides all lines except those in the selection.
`java.awt.Point` | `offsetToXY(int offset)` Converts an offset into a point in the text area painter's co-ordinate space.
`java.awt.Point` | `offsetToXY(int line, int offset, java.awt.Point retVal)` Converts an offset into a point in the text area painter's co-ordinate space.
`void` | `processKeyEvent(java.awt.event.KeyEvent evt)`
`void` | `propertiesChanged()` Called by jEdit when necessary.
`void` | `rangeComment()` Adds comment start and end strings to the beginning and end of the selection.
`void` | `removeCaretListener(javax.swing.event.CaretListener listener)` Removes a caret change listener from this text area.
`void` | `removeFromSelection(int offset)` Deactivates the selection at the specified offset.
`void` | `removeFromSelection(Selection sel)` Deactivates the specified selection.
`void` | `removeLeftOfScrollBar(java.awt.Component comp)` Removes a component from the box left of the vertical scroll bar.
`void` | `removeNotify()` Called by the AWT when this component is removed from it's parent.
`void` | `removeScrollListener(ScrollListener listener)` Removes a scroll listener from this text area.
`void` | `removeStructureMatcher(StructureMatcher matcher)` Removes a structure matcher.
`void` | `removeTopComponent(java.awt.Component comp)` Removes a component from above the gutter, text area, and vertical scroll bar.
`void` | `removeTrailingWhiteSpace()` Removes trailing whitespace from all lines in the selection.
`void` | `resizeSelection(int offset, int end, int extraEndVirt, boolean rect)` Resizes the selection at the specified offset, or creates a new one if there is no selection at the specified offset.
`void` | `scrollDownLine()` Scrolls down by one line.
`void` | `scrollDownPage()` Scrolls down by one page.
`void` | `scrollTo(int offset, boolean doElectricScroll)` Ensures that the specified location in the buffer is visible.
`void` | `scrollTo(int line, int offset, boolean doElectricScroll)` Ensures that the specified location in the buffer is visible.
`void` | `scrollToCaret(boolean doElectricScroll)` Ensures that the caret is visible by scrolling the text area if necessary.
`void` | `scrollUpLine()` Scrolls up by one line.
`void` | `scrollUpPage()` Scrolls up by one page.
`void` | `select(int start, int end)` Deprecated. Instead, call either `addToSelection()`, or `setSelection()` with a new Selection instance.
`void` | `select(int start, int end, boolean doElectricScroll)` Deprecated. Instead, call either `addToSelection()`, or `setSelection()` with a new Selection instance.
`void` | `selectAll()` Selects all text in the buffer.
`void` | `selectBlock()` Selects the code block surrounding the caret.
`void` | `selectFold()` Selects the fold that contains the caret line number.
`void` | `selectFold(int line)` Selects the fold that contains the specified line number.
`void` | `selectLine()` Selects the current line.
`void` | `selectNone()` Deselects everything.
`void` | `selectParagraph()` Selects the paragraph at the caret position.
`void` | `selectToMatchingBracket()` Selects from the bracket at the caret position to the corresponding bracket.
`Selection` | `selectToMatchingBracket(int position, boolean quickCopy)` Selects from the bracket at the specified position to the corresponding bracket.
`void` | `selectWord()` Selects the word at the caret position.
`void` | `setBuffer(Buffer buffer)` Sets the buffer this text area is editing.
`void` | `setCaretBlinkEnabled(boolean caretBlinks)` Toggles caret blinking.
`void` | `setCaretPosition(int newCaret)` Sets the caret position and deactivates the selection.
`void` | `setCaretPosition(int newCaret, boolean doElectricScroll)` Sets the caret position and deactivates the selection.
`void` | `setDragAndDropCallback(java.lang.reflect.Method meth)` Drag and drop of text in jEdit is implementing using jEdit 1.4 APIs, however since jEdit must run with Java 1.3, this class only has the necessary support to call a hook method via reflection.
`void` | `setDragEnabled(boolean dndEnabled)` Sets if drag and drop of text is enabled.
`void` | `setDragInProgress(boolean dndInProgress)` Drag and drop of text in jEdit is implementing using jEdit 1.4 APIs, however since jEdit must run with Java 1.3, this class only has the necessary support to call a hook method via reflection.
`void` | `setElectricScroll(int electricScroll)` Sets the number of lines from the top and bottom of the text area that are always visible
`void` | `setFirstLine(int firstLine)` Sets the vertical scroll bar position
`void` | `setFirstPhysicalLine(int physFirstLine)` Sets the vertical scroll bar position.
`void` | `setFirstPhysicalLine(int physFirstLine, int skew)` Sets the vertical scroll bar position.
`void` | `setHorizontalOffset(int horizontalOffset)` Sets the horizontal offset of drawn lines.
`void` | `setMagicCaretPosition(int magicCaret)` Sets the `magic' caret position.
`void` | `setMultipleSelectionEnabled(boolean multi)` Set multiple selection on or off according to the value of `multi`.
`void` | `setOverwriteEnabled(boolean overwrite)` Sets overwrite mode.
`void` | `setQuickCopyEnabled(boolean quickCopy)` Sets if clicking the middle mouse button pastes the most recent selection (% register), and if Control-dragging inserts the selection at the caret.
`void` | `setRectangularSelectionEnabled(boolean rectangularSelectionMode)` Set rectangular selection on or off according to the value of `rectangularSelectionMode`.
`void` | `setRightClickPopup(javax.swing.JPopupMenu popup)` Sets the right click popup menu.
`void` | `setRightClickPopupEnabled(boolean popupEnabled)` Sets if the right click popup menu is enabled.
`void` | `setSelectedText(Selection s, java.lang.String selectedText)` Replaces the selection with the specified text.
`void` | `setSelectedText(java.lang.String selectedText)` Replaces the selection at the caret with the specified text.
`void` | `setSelectedText(java.lang.String selectedText, boolean moveCaret)` Replaces the selection at the caret with the specified text.
`void` | `setSelection(Selection selection)` Sets the selection.
`void` | `setSelection(Selection[] selection)` Sets the selection.
`void` | `setSelectionEnd(int selectionEnd)` Deprecated. Do not use.
`void` | `setSelectionStart(int selectionStart)` Deprecated. Do not use.
`void` | `setText(java.lang.String text)` Sets the entire text of this text area.
`void` | `shiftIndentLeft()` Shifts the indent to the left.
`void` | `shiftIndentRight()` Shifts the indent to the right.
`void` | `showGoToLineDialog()` Displays the 'go to line' dialog box, and moves the caret to the specified line number.
`void` | `showSelectLineRangeDialog()` Displays the 'select line range' dialog box, and selects the specified range of lines.
`void` | `showWordCountDialog()` Displays the 'word count' dialog box.
`void` | `smartEnd(boolean select)` On subsequent invocations, first moves the caret to the last non-whitespace character of the line, then the end of the line, then to the last visible line.
`void` | `smartHome(boolean select)` On subsequent invocations, first moves the caret to the first non-whitespace character of the line, then the beginning of the line, then to the first visible line.
`void` | `spacesToTabs()` Converts spaces to tabs in the selection.
`void` | `swapMarkerAndCaret(char shortcut)` Moves the caret to the marker with the specified shortcut, then sets the marker position to the former caret position.
`void` | `tabsToSpaces()` Converts tabs to spaces in the selection.
`void` | `toggleMultipleSelectionEnabled()` Toggles multiple selection.
`void` | `toggleOverwriteEnabled()` Toggles overwrite mode.
`void` | `toggleRectangularSelectionEnabled()` Toggles rectangular selection.
`void` | `toLowerCase()` Converts the selected text to lower case.
`void` | `toUpperCase()` Converts the selected text to upper case.
`void` | `userInput(char ch)` Handles the insertion of the specified character.
`int` | `xToScreenLineOffset(int screenLine, int x, boolean round)` Converts a point in a given screen line to an offset.
`int` | `xyToOffset(int x, int y)` Converts a point to an offset.
`int` | `xyToOffset(int x, int y, boolean round)` Converts a point to an offset.

Methods inherited from class javax.swing.JComponent
`addAncestorListener, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getGraphics, getHeight, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPreferredSize, getPropertyChangeListeners, getPropertyChangeListeners, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isPreferredSizeSet, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFont, setForeground, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update, updateUI`

Methods inherited from class java.awt.Container
`add, add, add, add, add, addContainerListener, addImpl, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setLayout, transferFocusBackward, transferFocusDownCycle, validate, validateTree`

Methods inherited from class java.awt.Component
`action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

### trace

    public java.lang.Exception trace

### NO_SCROLL

    public static int NO_SCROLL

### NORMAL_SCROLL

    public static int NORMAL_SCROLL

### ELECTRIC_SCROLL

    public static int ELECTRIC_SCROLL

Constructor Detail

### JEditTextArea

    public JEditTextArea(View view)

  Creates a new JEditTextArea.

Method Detail

### dispose

    public void dispose()

  Plugins and macros should not call this method.

  Since:
    jEdit 4.2pre1

### getView

    public View getView()

  Returns this text area's view.

  Since:
    jEdit 4.2pre5

### getPainter

    public final TextAreaPainter getPainter()

  Returns the object responsible for painting this text area.

### getGutter

    public final Gutter getGutter()

  Returns the gutter to the left of the text area or null if the gutter is disabled

### getDisplayManager

    public DisplayManager getDisplayManager()

  Returns the display manager used by this text area.

  Since:
    jEdit 4.2pre1

### isCaretBlinkEnabled

    public final boolean isCaretBlinkEnabled()

  Returns true if the caret is blinking, false otherwise.

### setCaretBlinkEnabled

    public void setCaretBlinkEnabled(boolean caretBlinks)

  Toggles caret blinking.

  Parameters:
    `caretBlinks` - True if the caret should blink, false otherwise

### getElectricScroll

    public final int getElectricScroll()

  Returns the number of lines from the top and button of the text area that are always visible.

### setElectricScroll

    public final void setElectricScroll(int electricScroll)

  Sets the number of lines from the top and bottom of the text area that are always visible

  Parameters:
    `electricScroll` - The number of lines always visible from the top or bottom

### isQuickCopyEnabled

    public final boolean isQuickCopyEnabled()

  Returns if clicking the middle mouse button pastes the most recent selection (% register), and if Control-dragging inserts the selection at the caret.

### setQuickCopyEnabled

    public final void setQuickCopyEnabled(boolean quickCopy)

  Sets if clicking the middle mouse button pastes the most recent selection (% register), and if Control-dragging inserts the selection at the caret.

  Parameters:
    `quickCopy` - A boolean flag

### getBuffer

    public final Buffer getBuffer()

  Returns the buffer this text area is editing.

### setBuffer

    public void setBuffer(Buffer buffer)

  Sets the buffer this text area is editing. Do not call this method - use `EditPane.setBuffer(Buffer)` instead.

  Parameters:
    `buffer` - The buffer

### isEditable

    public final boolean isEditable()

  Returns true if this text area is editable, false otherwise.

### getDragAndDropCallback

    public java.lang.reflect.Method getDragAndDropCallback()

  Drag and drop of text in jEdit is implementing using jEdit 1.4 APIs, however since jEdit must run with Java 1.3, this class only has the necessary support to call a hook method via reflection. The method is provided by the `Java14` class and handles the drag and drop API calls themselves.

  Since:
    jEdit 4.2pre5

### setDragAndDropCallback

    public void setDragAndDropCallback(java.lang.reflect.Method meth)

  Drag and drop of text in jEdit is implementing using jEdit 1.4 APIs, however since jEdit must run with Java 1.3, this class only has the necessary support to call a hook method via reflection. The method is provided by the `Java14` class and handles the drag and drop API calls themselves.

  Since:
    jEdit 4.2pre5

### isDragInProgress

    public boolean isDragInProgress()

  Drag and drop of text in jEdit is implementing using jEdit 1.4 APIs, however since jEdit must run with Java 1.3, this class only has the necessary support to call a hook method via reflection. This method is called by the `Java14` class to signal that a drag is in progress.

  Since:
    jEdit 4.2pre5

### setDragInProgress

    public void setDragInProgress(boolean dndInProgress)

  Drag and drop of text in jEdit is implementing using jEdit 1.4 APIs, however since jEdit must run with Java 1.3, this class only has the necessary support to call a hook method via reflection. This method is called by the `Java14` class to signal that a drag is in progress.

  Since:
    jEdit 4.2pre5

### isDragEnabled

    public boolean isDragEnabled()

  Returns if drag and drop of text is enabled.

  Since:
    jEdit 4.2pre5

### setDragEnabled

    public void setDragEnabled(boolean dndEnabled)

  Sets if drag and drop of text is enabled.

  Since:
    jEdit 4.2pre5

### getFirstLine

    public final int getFirstLine()

  Returns the vertical scroll bar position.

  Since:
    jEdit 4.2pre1

### setFirstLine

    public void setFirstLine(int firstLine)

  Sets the vertical scroll bar position

  Parameters:
    `firstLine` - The scroll bar position

### getFirstPhysicalLine

    public final int getFirstPhysicalLine()

  Returns the first visible physical line index.

  Since:
    jEdit 4.0pre4

### setFirstPhysicalLine

    public void setFirstPhysicalLine(int physFirstLine)

  Sets the vertical scroll bar position.

  Parameters:
    `physFirstLine` - The first physical line to display
  Since:
    jEdit 4.2pre1

### setFirstPhysicalLine

    public void setFirstPhysicalLine(int physFirstLine,
                                     int skew)

  Sets the vertical scroll bar position.

  Parameters:
    `physFirstLine` - The first physical line to display
    `skew` - A local screen line delta
  Since:
    jEdit 4.2pre1

### getLastPhysicalLine

    public final int getLastPhysicalLine()

  Returns the last visible physical line index.

  Since:
    jEdit 4.0pre4

### getVisibleLines

    public final int getVisibleLines()

  Returns the number of lines visible in this text area.

### getHorizontalOffset

    public final int getHorizontalOffset()

  Returns the horizontal offset of drawn lines.

### setHorizontalOffset

    public void setHorizontalOffset(int horizontalOffset)

  Sets the horizontal offset of drawn lines. This can be used to implement horizontal scrolling.

  Parameters:
    `horizontalOffset` - offset The new horizontal offset

### scrollUpLine

    public void scrollUpLine()

  Scrolls up by one line.

  Since:
    jEdit 2.7pre2

### scrollUpPage

    public void scrollUpPage()

  Scrolls up by one page.

  Since:
    jEdit 2.7pre2

### scrollDownLine

    public void scrollDownLine()

  Scrolls down by one line.

  Since:
    jEdit 2.7pre2

### scrollDownPage

    public void scrollDownPage()

  Scrolls down by one page.

  Since:
    jEdit 2.7pre2

### scrollToCaret

    public void scrollToCaret(boolean doElectricScroll)

  Ensures that the caret is visible by scrolling the text area if necessary.

  Parameters:
    `doElectricScroll` - If true, electric scrolling will be performed

### scrollTo

    public void scrollTo(int offset,
                         boolean doElectricScroll)

  Ensures that the specified location in the buffer is visible.

  Parameters:
    `offset` - The offset from the start of the buffer
    `doElectricScroll` - If true, electric scrolling will be performed
  Since:
    jEdit 4.2pre3

### scrollTo

    public void scrollTo(int line,
                         int offset,
                         boolean doElectricScroll)

  Ensures that the specified location in the buffer is visible.

  Parameters:
    `line` - The line number
    `offset` - The offset from the start of the line
    `doElectricScroll` - If true, electric scrolling will be performed
  Since:
    jEdit 4.0pre6

### addScrollListener

    public final void addScrollListener(ScrollListener listener)

  Adds a scroll listener to this text area.

  Parameters:
    `listener` - The listener
  Since:
    jEdit 3.2pre2

### removeScrollListener

    public final void removeScrollListener(ScrollListener listener)

  Removes a scroll listener from this text area.

  Parameters:
    `listener` - The listener
  Since:
    jEdit 3.2pre2

### getPhysicalLineOfScreenLine

    public int getPhysicalLineOfScreenLine(int screenLine)

  Returns the physical line number that contains the specified screen line.

  Parameters:
    `screenLine` - The screen line
  Since:
    jEdit 4.0pre6

### getScreenLineOfOffset

    public int getScreenLineOfOffset(int offset)

  Returns the screen (wrapped) line containing the specified offset. Returns -1 if the line is not currently visible on the screen.

  Parameters:
    `offset` - The offset
  Since:
    jEdit 4.0pre4

### getScreenLineStartOffset

    public int getScreenLineStartOffset(int line)

  Returns the start offset of the specified screen (wrapped) line.

  Parameters:
    `line` - The line
  Since:
    jEdit 4.0pre4

### getScreenLineEndOffset

    public int getScreenLineEndOffset(int line)

  Returns the end offset of the specified screen (wrapped) line.

  Parameters:
    `line` - The line
  Since:
    jEdit 4.0pre4

### xyToOffset

    public int xyToOffset(int x,
                          int y)

  Converts a point to an offset. Note that unlike in previous jEdit versions, this method now returns -1 if the y co-ordinate is out of bounds.

  Parameters:
    `x` - The x co-ordinate of the point
    `y` - The y co-ordinate of the point

### xyToOffset

    public int xyToOffset(int x,
                          int y,
                          boolean round)

  Converts a point to an offset. Note that unlike in previous jEdit versions, this method now returns -1 if the y co-ordinate is out of bounds.

  Parameters:
    `x` - The x co-ordinate of the point
    `y` - The y co-ordinate of the point
    `round` - Round up to next letter if past the middle of a letter?
  Since:
    jEdit 3.2pre6

### xToScreenLineOffset

    public int xToScreenLineOffset(int screenLine,
                                   int x,
                                   boolean round)

  Converts a point in a given screen line to an offset. Note that unlike in previous jEdit versions, this method now returns -1 if the y co-ordinate is out of bounds.

  Parameters:
    `x` - The x co-ordinate of the point
    `screenLine` - The screen line
    `round` - Round up to next letter if past the middle of a letter?
  Since:
    jEdit 3.2pre6

### offsetToXY

    public java.awt.Point offsetToXY(int offset)

  Converts an offset into a point in the text area painter's co-ordinate space.

  Parameters:
    `offset` - The offset
  Returns:
    The location of the offset on screen, or `null` if the specified offset is not visible

### offsetToXY

    public java.awt.Point offsetToXY(int line,
                                     int offset,
                                     java.awt.Point retVal)

  Converts an offset into a point in the text area painter's co-ordinate space.

  Parameters:
    `line` - The physical line number
    `offset` - The offset, from the start of the line
    `retVal` - The point to store the return value in
  Returns:
    `retVal` for convenience, or `null` if the specified offset is not visible
  Since:
    jEdit 4.0pre4

### invalidateScreenLineRange

    public void invalidateScreenLineRange(int start,
                                          int end)

  Marks a range of screen lines as needing a repaint.

  Parameters:
    `start` - The first line
    `end` - The last line
  Since:
    jEdit 4.0pre4

### invalidateLine

    public void invalidateLine(int line)

  Marks a line as needing a repaint.

  Parameters:
    `line` - The physical line to invalidate

### invalidateLineRange

    public void invalidateLineRange(int start,
                                    int end)

  Marks a range of physical lines as needing a repaint.

  Parameters:
    `start` - The first line to invalidate
    `end` - The last line to invalidate

### invalidateSelectedLines

    public void invalidateSelectedLines()

  Repaints the lines containing the selection.

### getBufferLength

    public final int getBufferLength()

  Returns the length of the buffer.

### getLineCount

    public final int getLineCount()

  Returns the number of physical lines in the buffer.

### getLineOfOffset

    public final int getLineOfOffset(int offset)

  Returns the line containing the specified offset.

  Parameters:
    `offset` - The offset

### getLineStartOffset

    public int getLineStartOffset(int line)

  Returns the start offset of the specified line.

  Parameters:
    `line` - The line
  Returns:
    The start offset of the specified line, or -1 if the line is invalid

### getLineEndOffset

    public int getLineEndOffset(int line)

  Returns the end offset of the specified line.

  Parameters:
    `line` - The line
  Returns:
    The end offset of the specified line, or -1 if the line is invalid.

### getLineLength

    public int getLineLength(int line)

  Returns the length of the specified line.

  Parameters:
    `line` - The line

### getText

    public final java.lang.String getText(int start,
                                          int len)

  Returns the specified substring of the buffer.

  Parameters:
    `start` - The start offset
    `len` - The length of the substring
  Returns:
    The substring

### getText

    public final void getText(int start,
                              int len,
                              javax.swing.text.Segment segment)

  Copies the specified substring of the buffer into a segment.

  Parameters:
    `start` - The start offset
    `len` - The length of the substring
    `segment` - The segment

### getLineText

    public final java.lang.String getLineText(int lineIndex)

  Returns the text on the specified line.

  Parameters:
    `lineIndex` - The line
  Returns:
    The text, or null if the line is invalid

### getLineText

    public final void getLineText(int lineIndex,
                                  javax.swing.text.Segment segment)

  Copies the text on the specified line into a segment. If the line is invalid, the segment will contain a null string.

  Parameters:
    `lineIndex` - The line

### getText

    public java.lang.String getText()

  Returns the entire text of this text area.

### setText

    public void setText(java.lang.String text)

  Sets the entire text of this text area.

### selectAll

    public final void selectAll()

  Selects all text in the buffer.

### selectLine

    public void selectLine()

  Selects the current line.

  Since:
    jEdit 2.7pre2

### selectParagraph

    public void selectParagraph()

  Selects the paragraph at the caret position.

  Since:
    jEdit 2.7pre2

### selectWord

    public void selectWord()

  Selects the word at the caret position.

  Since:
    jEdit 2.7pre2

### selectToMatchingBracket

    public Selection selectToMatchingBracket(int position,
                                             boolean quickCopy)

  Selects from the bracket at the specified position to the corresponding bracket.

  Since:
    jEdit 4.2pre1

### selectToMatchingBracket

    public void selectToMatchingBracket()

  Selects from the bracket at the caret position to the corresponding bracket.

  Since:
    jEdit 4.0pre2

### selectBlock

    public void selectBlock()

  Selects the code block surrounding the caret.

  Since:
    jEdit 2.7pre2

### lineInStructureScope

    public boolean lineInStructureScope(int line)

  Returns if the specified line is contained in the currently matched structure's scope.

  Since:
    jEdit 4.2pre3

### invertSelection

    public final void invertSelection()

  Inverts the selection.

  Since:
    jEdit 4.0pre1

### getSelectionCount

    public int getSelectionCount()

  Returns the number of selections. This can be used to test for the existence of selections.

  Since:
    jEdit 3.2pre2

### getSelection

    public Selection[] getSelection()

  Returns the current selection.

  Since:
    jEdit 3.2pre1

### selectNone

    public void selectNone()

  Deselects everything.

### setSelection

    public void setSelection(Selection[] selection)

  Sets the selection. Nested and overlapping selections are merged where possible.

  Parameters:
    `selection` - The new selection since jEdit 3.2pre1

### setSelection

    public void setSelection(Selection selection)

  Sets the selection. Nested and overlapping selections are merged where possible.

  Parameters:
    `selection` - The new selection since jEdit 3.2pre1

### addToSelection

    public void addToSelection(Selection[] selection)

  Adds to the selection. Nested and overlapping selections are merged where possible.

  Parameters:
    `selection` - The new selection since jEdit 3.2pre1

### addToSelection

    public void addToSelection(Selection selection)

  Adds to the selection. Nested and overlapping selections are merged where possible.

  Parameters:
    `selection` - The new selection since jEdit 3.2pre1

### getSelectionAtOffset

    public Selection getSelectionAtOffset(int offset)

  Returns the selection containing the specific offset, or `null` if there is no selection at that offset.

  Parameters:
    `offset` - The offset
  Since:
    jEdit 3.2pre1

### removeFromSelection

    public void removeFromSelection(Selection sel)

  Deactivates the specified selection.

  Parameters:
    `sel` - The selection
  Since:
    jEdit 3.2pre1

### removeFromSelection

    public void removeFromSelection(int offset)

  Deactivates the selection at the specified offset. If there is no selection at that offset, does nothing.

  Parameters:
    `offset` - The offset
  Since:
    jEdit 3.2pre1

### resizeSelection

    public void resizeSelection(int offset,
                                int end,
                                int extraEndVirt,
                                boolean rect)

  Resizes the selection at the specified offset, or creates a new one if there is no selection at the specified offset. This is a utility method that is mainly useful in the mouse event handler because it handles the case of end being before offset gracefully (unlike the rest of the selection API).

  Parameters:
    `offset` - The offset
    `end` - The new selection end
    `extraEndVirt` - Only for rectangular selections - specifies how far it extends into virtual space.
    `rect` - Make the selection rectangular?
  Since:
    jEdit 3.2pre1

### extendSelection

    public void extendSelection(int offset,
                                int end)

  Extends the selection at the specified offset, or creates a new one if there is no selection at the specified offset. This is different from resizing in that the new chunk is added to the selection in question, instead of replacing it.

  Parameters:
    `offset` - The offset
    `end` - The new selection end
  Since:
    jEdit 3.2pre1

### extendSelection

    public void extendSelection(int offset,
                                int end,
                                int extraStartVirt,
                                int extraEndVirt)

  Extends the selection at the specified offset, or creates a new one if there is no selection at the specified offset. This is different from resizing in that the new chunk is added to the selection in question, instead of replacing it.

  Parameters:
    `offset` - The offset
    `end` - The new selection end
    `extraStartVirt` - Extra virtual space at the start
    `extraEndVirt` - Extra virtual space at the end
  Since:
    jEdit 4.2pre1

### getSelectedText

    public java.lang.String getSelectedText(Selection s)

  Returns the text in the specified selection.

  Parameters:
    `s` - The selection
  Since:
    jEdit 3.2pre1

### getSelectedText

    public java.lang.String getSelectedText(java.lang.String separator)

  Returns the text in all active selections.

  Parameters:
    `separator` - The string to insert between each text chunk (for example, a newline)
  Since:
    jEdit 3.2pre1

### getSelectedText

    public java.lang.String getSelectedText()

  Returns the text in all active selections, with a newline between each text chunk.

### setSelectedText

    public void setSelectedText(Selection s,
                                java.lang.String selectedText)

  Replaces the selection with the specified text.

  Parameters:
    `s` - The selection
    `selectedText` - The new text
  Since:
    jEdit 3.2pre1

### setSelectedText

    public void setSelectedText(java.lang.String selectedText)

  Replaces the selection at the caret with the specified text. If there is no selection at the caret, the text is inserted at the caret position.

### setSelectedText

    public void setSelectedText(java.lang.String selectedText,
                                boolean moveCaret)

  Replaces the selection at the caret with the specified text. If there is no selection at the caret, the text is inserted at the caret position.

  Parameters:
    `selectedText` - The new selection
    `moveCaret` - Move caret to insertion location if necessary
  Since:
    jEdit 4.2pre5

### getSelectedLines

    public int[] getSelectedLines()

  Returns a sorted array of line numbers on which a selection or selections are present.

  This method is the most convenient way to iterate through selected lines in a buffer. The line numbers in the array returned by this method can be passed as a parameter to such methods as `Buffer.getLineText(int)`.

  Since:
    jEdit 3.2pre1

### showSelectLineRangeDialog

    public void showSelectLineRangeDialog()

  Displays the 'select line range' dialog box, and selects the specified range of lines.

  Since:
    jEdit 2.7pre2

### addStructureMatcher

    public void addStructureMatcher(StructureMatcher matcher)

  Adds a structure matcher.

  Since:
    jEdit 4.2pre3

### removeStructureMatcher

    public void removeStructureMatcher(StructureMatcher matcher)

  Removes a structure matcher.

  Since:
    jEdit 4.2pre3

### getStructureMatch

    public StructureMatcher.Match getStructureMatch()

  Returns the structure element (bracket, or XML tag, etc) matching the one before the caret.

  Since:
    jEdit 4.2pre3

### blinkCaret

    public final void blinkCaret()

  Blinks the caret.

### centerCaret

    public void centerCaret()

  Centers the caret on the screen.

  Since:
    jEdit 2.7pre2

### setCaretPosition

    public void setCaretPosition(int newCaret)

  Sets the caret position and deactivates the selection.

  Parameters:
    `newCaret` - The caret position

### setCaretPosition

    public void setCaretPosition(int newCaret,
                                 boolean doElectricScroll)

  Sets the caret position and deactivates the selection.

  Parameters:
    `newCaret` - The caret position
    `doElectricScroll` - Do electric scrolling?

### moveCaretPosition

    public void moveCaretPosition(int newCaret)

  Sets the caret position without deactivating the selection.

  Parameters:
    `newCaret` - The caret position

### moveCaretPosition

    public void moveCaretPosition(int newCaret,
                                  boolean doElectricScroll)

  Sets the caret position without deactivating the selection.

  Parameters:
    `newCaret` - The caret position
    `doElectricScroll` - Do electric scrolling?

### moveCaretPosition

    public void moveCaretPosition(int newCaret,
                                  int scrollMode)

  Sets the caret position without deactivating the selection.

  Parameters:
    `newCaret` - The caret position
    `scrollMode` - The scroll mode (NO_SCROLL, NORMAL_SCROLL, or ELECTRIC_SCROLL).
  Since:
    jEdit 4.2pre1

### getCaretPosition

    public int getCaretPosition()

  Returns a zero-based index of the caret position.

### getCaretLine

    public int getCaretLine()

  Returns the line number containing the caret.

### getMagicCaretPosition

    public int getMagicCaretPosition()

  Returns an internal position used to keep the caret in one column while moving around lines of varying lengths.

  Since:
    jEdit 4.2pre1

### setMagicCaretPosition

    public void setMagicCaretPosition(int magicCaret)

  Sets the `magic' caret position. This can be used to preserve the column position when moving up and down lines.

  Parameters:
    `magicCaret` - The magic caret position
  Since:
    jEdit 4.2pre1

### addCaretListener

    public final void addCaretListener(javax.swing.event.CaretListener listener)

  Adds a caret change listener to this text area.

  Parameters:
    `listener` - The listener

### removeCaretListener

    public final void removeCaretListener(javax.swing.event.CaretListener listener)

  Removes a caret change listener from this text area.

  Parameters:
    `listener` - The listener

### goToNextBracket

    public void goToNextBracket(boolean select)

  Moves the caret to the next closing bracket.

  Since:
    jEdit 2.7pre2.

### goToNextCharacter

    public void goToNextCharacter(boolean select)

  Moves the caret to the next character.

  Since:
    jEdit 2.7pre2.

### goToNextLine

    public void goToNextLine(boolean select)

  Move the caret to the next line.

  Since:
    jEdit 2.7pre2

### goToNextMarker

    public void goToNextMarker(boolean select)

  Moves the caret to the next marker.

  Since:
    jEdit 2.7pre2

### goToNextPage

    public void goToNextPage(boolean select)

  Moves the caret to the next screenful.

  Since:
    jEdit 2.7pre2.

### goToNextParagraph

    public void goToNextParagraph(boolean select)

  Moves the caret to the start of the next paragraph.

  Since:
    jEdit 2.7pre2

### goToNextWord

    public void goToNextWord(boolean select)

  Moves the caret to the start of the next word. Note that if the "view.eatWhitespace" boolean propery is false, this method moves the caret to the end of the current word instead.

  Since:
    jEdit 2.7pre2

### goToNextWord

    public void goToNextWord(boolean select,
                             boolean eatWhitespace)

  Moves the caret to the start of the next word.

  Since:
    jEdit 4.1pre5

### goToPrevBracket

    public void goToPrevBracket(boolean select)

  Moves the caret to the previous bracket.

  Since:
    jEdit 2.7pre2

### goToPrevCharacter

    public void goToPrevCharacter(boolean select)

  Moves the caret to the previous character.

  Since:
    jEdit 2.7pre2.

### goToPrevLine

    public void goToPrevLine(boolean select)

  Moves the caret to the previous line.

  Since:
    jEdit 2.7pre2

### goToPrevMarker

    public void goToPrevMarker(boolean select)

  Moves the caret to the previous marker.

  Since:
    jEdit 2.7pre2

### goToPrevPage

    public void goToPrevPage(boolean select)

  Moves the caret to the previous screenful.

  Since:
    jEdit 2.7pre2

### goToPrevParagraph

    public void goToPrevParagraph(boolean select)

  Moves the caret to the start of the previous paragraph.

  Since:
    jEdit 2.7pre2

### goToPrevWord

    public void goToPrevWord(boolean select)

  Moves the caret to the start of the previous word.

  Since:
    jEdit 2.7pre2

### goToPrevWord

    public void goToPrevWord(boolean select,
                             boolean eatWhitespace)

  Moves the caret to the start of the previous word.

  Since:
    jEdit 4.1pre5

### smartHome

    public void smartHome(boolean select)

  On subsequent invocations, first moves the caret to the first non-whitespace character of the line, then the beginning of the line, then to the first visible line.

  Since:
    jEdit 2.7pre2

### smartEnd

    public void smartEnd(boolean select)

  On subsequent invocations, first moves the caret to the last non-whitespace character of the line, then the end of the line, then to the last visible line.

  Since:
    jEdit 2.7pre2

### goToStartOfLine

    public void goToStartOfLine(boolean select)

  Moves the caret to the beginning of the current line.

  Since:
    jEdit 2.7pre2

### goToEndOfLine

    public void goToEndOfLine(boolean select)

  Moves the caret to the end of the current line.

  Since:
    jEdit 2.7pre2

### goToStartOfWhiteSpace

    public void goToStartOfWhiteSpace(boolean select)

  Moves the caret to the first non-whitespace character of the current line.

  Since:
    jEdit 2.7pre2

### goToEndOfWhiteSpace

    public void goToEndOfWhiteSpace(boolean select)

  Moves the caret to the last non-whitespace character of the current line.

  Since:
    jEdit 2.7pre2

### goToFirstVisibleLine

    public void goToFirstVisibleLine(boolean select)

  Moves the caret to the first visible line.

  Since:
    jEdit 2.7pre2

### goToLastVisibleLine

    public void goToLastVisibleLine(boolean select)

  Moves the caret to the last visible line.

  Since:
    jEdit 2.7pre2

### goToBufferStart

    public void goToBufferStart(boolean select)

  Moves the caret to the beginning of the buffer.

  Since:
    jEdit 4.0pre3

### goToBufferEnd

    public void goToBufferEnd(boolean select)

  Moves the caret to the end of the buffer.

  Since:
    jEdit 4.0pre3

### goToMatchingBracket

    public void goToMatchingBracket()

  Moves the caret to the bracket matching the one before the caret.

  Since:
    jEdit 2.7pre3

### showGoToLineDialog

    public void showGoToLineDialog()

  Displays the 'go to line' dialog box, and moves the caret to the specified line number.

  Since:
    jEdit 2.7pre2

### userInput

    public void userInput(char ch)

  Handles the insertion of the specified character. It performs the following operations above and beyond simply inserting the text:
  - Inserting a TAB with a selection will shift to the right
  - Inserting a space with automatic abbrev expansion enabled will try to expand the abbrev
  - Inserting an indent open/close bracket will re-indent the current line as necessary

  Parameters:
    `ch` - The character
  Since:
    jEdit 2.7pre3
  See Also:
    `setSelectedText(String)`, `isOverwriteEnabled()`

### isOverwriteEnabled

    public final boolean isOverwriteEnabled()

  Returns true if overwrite mode is enabled, false otherwise.

### setOverwriteEnabled

    public final void setOverwriteEnabled(boolean overwrite)

  Sets overwrite mode.

### toggleOverwriteEnabled

    public final void toggleOverwriteEnabled()

  Toggles overwrite mode.

  Since:
    jEdit 2.7pre2

### backspace

    public void backspace()

  Deletes the character before the caret, or the selection, if one is active.

  Since:
    jEdit 2.7pre2

### backspaceWord

    public void backspaceWord()

  Deletes the word before the caret.

  Since:
    jEdit 2.7pre2

### backspaceWord

    public void backspaceWord(boolean eatWhitespace)

  Deletes the word before the caret.

  Parameters:
    `eatWhitespace` - If true, will eat whitespace
  Since:
    jEdit 4.2pre5

### delete

    public void delete()

  Deletes the character after the caret.

  Since:
    jEdit 2.7pre2

### deleteToEndOfLine

    public void deleteToEndOfLine()

  Deletes from the caret to the end of the current line.

  Since:
    jEdit 2.7pre2

### deleteLine

    public void deleteLine()

  Deletes the line containing the caret.

  Since:
    jEdit 2.7pre2

### deleteParagraph

    public void deleteParagraph()

  Deletes the paragraph containing the caret.

  Since:
    jEdit 2.7pre2

### deleteToStartOfLine

    public void deleteToStartOfLine()

  Deletes from the caret to the beginning of the current line.

  Since:
    jEdit 2.7pre2

### deleteWord

    public void deleteWord()

  Deletes the word in front of the caret.

  Since:
    jEdit 2.7pre2

### deleteWord

    public void deleteWord(boolean eatWhitespace)

  Deletes the word in front of the caret. . * @param eatWhitespace If true, will eat whitespace

  Since:
    jEdit 4.2pre5

### isMultipleSelectionEnabled

    public final boolean isMultipleSelectionEnabled()

  Returns if multiple selection is enabled.

  Since:
    jEdit 3.2pre1

### toggleMultipleSelectionEnabled

    public final void toggleMultipleSelectionEnabled()

  Toggles multiple selection.

  Since:
    jEdit 3.2pre1

### setMultipleSelectionEnabled

    public final void setMultipleSelectionEnabled(boolean multi)

  Set multiple selection on or off according to the value of `multi`. This only affects the ability to make multiple selections in the user interface; macros and plugins can manipulate them regardless of the setting of this flag. In fact, in most cases, calling this method should not be necessary.

  Parameters:
    `multi` - Should multiple selection be enabled?
  Since:
    jEdit 3.2pre1

### isRectangularSelectionEnabled

    public final boolean isRectangularSelectionEnabled()

  Returns if rectangular selection is enabled.

  Since:
    jEdit 4.2pre1

### toggleRectangularSelectionEnabled

    public final void toggleRectangularSelectionEnabled()

  Toggles rectangular selection.

  Since:
    jEdit 4.2pre1

### setRectangularSelectionEnabled

    public final void setRectangularSelectionEnabled(boolean rectangularSelectionMode)

  Set rectangular selection on or off according to the value of `rectangularSelectionMode`. This only affects the ability to make multiple selections from the keyboard. A rectangular selection can always be created by dragging with the mouse by holding down Control, regardless of the state of this flag.

  Parameters:
    `rectangularSelectionMode` - Should rectangular selection be enabled?
  Since:
    jEdit 4.2pre1

### goToMarker

    public void goToMarker(char shortcut,
                           boolean select)

  Moves the caret to the marker with the specified shortcut.

  Parameters:
    `shortcut` - The shortcut
    `select` - True if the selection should be extended, false otherwise
  Since:
    jEdit 3.2pre2

### addMarker

    public void addMarker()

  Adds a marker at the caret position.

  Since:
    jEdit 3.2pre1

### swapMarkerAndCaret

    public void swapMarkerAndCaret(char shortcut)

  Moves the caret to the marker with the specified shortcut, then sets the marker position to the former caret position.

  Parameters:
    `shortcut` - The shortcut
  Since:
    jEdit 3.2pre2

### goToParentFold

    public void goToParentFold()

  Moves the caret to the fold containing the one at the caret position.

  Since:
    jEdit 4.0pre3

### goToNextFold

    public void goToNextFold(boolean select)

  Moves the caret to the next fold.

  Since:
    jEdit 4.0pre3

### goToPrevFold

    public void goToPrevFold(boolean select)

  Moves the caret to the previous fold.

  Since:
    jEdit 4.0pre3

### collapseFold

    public void collapseFold()

  Like `DisplayManager.collapseFold(int)`, but also moves the caret to the first line of the fold.

  Since:
    jEdit 4.0pre3

### expandFold

    public void expandFold(boolean fully)

  Like `DisplayManager.expandFold(int,boolean)`, but also moves the caret to the first sub-fold.

  Since:
    jEdit 4.0pre3

### selectFold

    public void selectFold()

  Selects the fold that contains the caret line number.

  Since:
    jEdit 3.1pre3

### selectFold

    public void selectFold(int line)

  Selects the fold that contains the specified line number.

  Parameters:
    `line` - The line number
  Since:
    jEdit 4.0pre1

### narrowToFold

    public void narrowToFold()

  Hides all lines except those in the fold containing the caret.

  Since:
    jEdit 4.0pre1

### narrowToSelection

    public void narrowToSelection()

  Hides all lines except those in the selection.

  Since:
    jEdit 4.0pre1

### addExplicitFold

    public void addExplicitFold()

  Surrounds the selection with explicit fold markers.

  Since:
    jEdit 4.0pre3

### lineComment

    public void lineComment()

  Prepends each line of the selection with the line comment string.

  Since:
    jEdit 3.2pre1

### rangeComment

    public void rangeComment()

  Adds comment start and end strings to the beginning and end of the selection.

  Since:
    jEdit 3.2pre1

### formatParagraph

    public void formatParagraph()

  Formats the paragraph containing the caret.

  Since:
    jEdit 2.7pre2

### spacesToTabs

    public void spacesToTabs()

  Converts spaces to tabs in the selection.

  Since:
    jEdit 2.7pre2

### tabsToSpaces

    public void tabsToSpaces()

  Converts tabs to spaces in the selection.

  Since:
    jEdit 2.7pre2

### toUpperCase

    public void toUpperCase()

  Converts the selected text to upper case.

  Since:
    jEdit 2.7pre2

### toLowerCase

    public void toLowerCase()

  Converts the selected text to lower case.

  Since:
    jEdit 2.7pre2

### removeTrailingWhiteSpace

    public void removeTrailingWhiteSpace()

  Removes trailing whitespace from all lines in the selection.

  Since:
    jEdit 2.7pre2

### insertEnterAndIndent

    public void insertEnterAndIndent()

### insertTabAndIndent

    public void insertTabAndIndent()

### indentSelectedLines

    public void indentSelectedLines()

  Indents all selected lines.

  Since:
    jEdit 3.1pre3

### shiftIndentLeft

    public void shiftIndentLeft()

  Shifts the indent to the left.

  Since:
    jEdit 2.7pre2

### shiftIndentRight

    public void shiftIndentRight()

  Shifts the indent to the right.

  Since:
    jEdit 2.7pre2

### joinLines

    public void joinLines()

  Joins the current and the next line.

  Since:
    jEdit 2.7pre2

### showWordCountDialog

    public void showWordCountDialog()

  Displays the 'word count' dialog box.

  Since:
    jEdit 2.7pre2

### isRightClickPopupEnabled

    public boolean isRightClickPopupEnabled()

  Returns if the right click popup menu is enabled. The Gestures plugin uses this API.

  Since:
    jEdit 4.2pre13

### setRightClickPopupEnabled

    public void setRightClickPopupEnabled(boolean popupEnabled)

  Sets if the right click popup menu is enabled. The Gestures plugin uses this API.

  Since:
    jEdit 4.2pre13

### getRightClickPopup

    public final javax.swing.JPopupMenu getRightClickPopup()

  Returns the right click popup menu.

### setRightClickPopup

    public final void setRightClickPopup(javax.swing.JPopupMenu popup)

  Sets the right click popup menu.

  Parameters:
    `popup` - The popup

### handlePopupTrigger

    public void handlePopupTrigger(java.awt.event.MouseEvent evt)

  Do the same thing as right-clicking on the text area. The Gestures plugin uses this API.

  Since:
    jEdit 4.2pre13

### addLeftOfScrollBar

    public void addLeftOfScrollBar(java.awt.Component comp)

  Adds a component to the box left of the vertical scroll bar. The ErrorList plugin uses this to show a global error overview, for example.

  Parameters:
    `comp` - The component
  Since:
    jEdit 4.2pre1

### removeLeftOfScrollBar

    public void removeLeftOfScrollBar(java.awt.Component comp)

  Removes a component from the box left of the vertical scroll bar.

  Parameters:
    `comp` - The component
  Since:
    jEdit 4.2pre1

### addNotify

    public void addNotify()

  Called by the AWT when this component is added to a parent. Adds document listener.

### removeNotify

    public void removeNotify()

  Called by the AWT when this component is removed from it's parent. This clears the pointer to the currently focused component. Also removes document listener.

### getFocusTraversalKeysEnabled

    public boolean getFocusTraversalKeysEnabled()

  Java 1.4 compatibility fix to make Tab key work.

  Since:
    jEdit 3.2pre4

### getFocusCycleRoot

    public boolean getFocusCycleRoot()

  Java 1.4 compatibility fix to make Tab traversal work in a sane manner.

  Since:
    jEdit 4.2pre3

### processKeyEvent

    public void processKeyEvent(java.awt.event.KeyEvent evt)

### addTopComponent

    public void addTopComponent(java.awt.Component comp)

  Adds a component above the gutter, text area, and vertical scroll bar.

  Since:
    jEdit 4.2pre3

### removeTopComponent

    public void removeTopComponent(java.awt.Component comp)

  Removes a component from above the gutter, text area, and vertical scroll bar.

  Since:
    jEdit 4.2pre3

### propertiesChanged

    public void propertiesChanged()

  Called by jEdit when necessary. Plugins should not call this method.

### getSelectionStart

    public final int getSelectionStart()

  Deprecated. Instead, obtain a Selection instance using any means, and call its `getStart()` method

### getSelectionStart

    public int getSelectionStart(int line)

  Deprecated. Instead, obtain a Selection instance using any means, and call its `getStart(int)` method

### getSelectionStartLine

    public final int getSelectionStartLine()

  Deprecated. Instead, obtain a Selection instance using any means, and call its `getStartLine()` method

### setSelectionStart

    public final void setSelectionStart(int selectionStart)

  Deprecated. Do not use.

### getSelectionEnd

    public final int getSelectionEnd()

  Deprecated. Instead, obtain a Selection instance using any means, and call its `getEnd()` method

### getSelectionEnd

    public int getSelectionEnd(int line)

  Deprecated. Instead, obtain a Selection instance using any means, and call its `getEnd(int)` method

### getSelectionEndLine

    public final int getSelectionEndLine()

  Deprecated. Instead, obtain a Selection instance using any means, and call its `getEndLine()` method

### setSelectionEnd

    public final void setSelectionEnd(int selectionEnd)

  Deprecated. Do not use.

### getMarkPosition

    public final int getMarkPosition()

  Deprecated. Do not use.

### getMarkLine

    public final int getMarkLine()

  Deprecated. Do not use.

### select

    public void select(int start,
                       int end)

  Deprecated. Instead, call either `addToSelection()`, or `setSelection()` with a new Selection instance.

### select

    public void select(int start,
                       int end,
                       boolean doElectricScroll)

  Deprecated. Instead, call either `addToSelection()`, or `setSelection()` with a new Selection instance.

### isSelectionRectangular

    public boolean isSelectionRectangular()

  Deprecated. Instead, check if the appropriate Selection is an instance of the Selection.Rect class.

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