Package editor.util

Class TextComponentUtil

java.lang.Object

editor.util.TextComponentUtil

public class TextComponentUtil
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	TextComponentUtil.CustomCopyAction
private static class	TextComponentUtil.CustomCutAction
private static class	TextComponentUtil.CustomHomeAction
static enum	TextComponentUtil.Direction
private static class	TextComponentUtil.JumpLeftAction
private static class	TextComponentUtil.JumpRightAction
private static class	TextComponentUtil.KeyMapController
private static class	TextComponentUtil.SelectLeftAction
private static class	TextComponentUtil.SelectRightAction
private static class	TextComponentUtil.ShowPasteBufferAction

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	SHOW_PASTE_BUFFER
private static final Set<String>	SIGNIFICANT_CHARS

Constructor Summary

Constructors

Constructor	Description
TextComponentUtil()

Method Summary

Modifier and Type	Method	Description
static int	adjustForLineComment(JTextComponent editor, int iStart)
static void	deleteWordAtCaret(JTextComponent editor)
static void	expandSelectionIfNeeded(JTextComponent editor)
static int	findCharacterPositionOnLine(int startPosition, String string, char charToFind, TextComponentUtil.Direction d)
static int	findNonWhitespacePositionAfter(String script, int position)
static int	findNonWhitespacePositionBefore(String script, int position)
protected static String	findPreviousTextChunk(int startPosition, String text)
static void	fixTextComponentKeyMap(JTextComponent editor)
private static int	getCharClass(char c)
static int	getColumnAtPosition(JTextComponent editor, int caretPosition)
static int	getDeepestWhiteSpaceLineStartAfter(String script, int offset)	Eats whitespace lines after the given offset until it finds a non-whitespace line and returns the start of the last whitespace line found, or the initial value if none was.
static String	getIdentifierAtCaret(EditorHostTextPane editor)
static int	getLineAtPosition(JTextComponent editor, int position)	Gets the line at a given position in the editor
static int	getLineEnd(String text, int initialCaretPosition)
static int	getLineStart(String text, int initialCaretPosition)
static int[]	getLineStartAndEndPositions(String text, int initialCaretPosition)	This will return a two element array, start line pos and end line pos.
static String	getMemberAtCaret(JTextComponent editor)
static Dimension	getMemberDimensionAtCaret(JTextComponent editor)
static int	getNextWordPostition(int pos, String source, boolean consumeWhitespaceFirst)
static String	getPartialWordBeforeCaret(JTextComponent editor)
static String	getPartialWordBeforePos(JTextComponent editor, int iPos)
private static int	getPreviousWord(JTextComponent editor, int iOffset)
static int	getWhiteSpaceLineStartAfter(String script, int end)	Returns the start of the next line if that line is only whitespace.
static int	getWhiteSpaceLineStartBefore(String script, int start)	Returns the start of the previous line if that line is only whitespace.
static int	getWhiteSpaceOrCommentLineStartAfter(String script, int end)	Returns the start of the next line if that line is only whitespace.
static int	getWhiteSpaceOrCommentLineStartBefore(String script, int start)	Returns the start of the previous line if that line is only whitespace.
static String	getWordAtCaret(JTextComponent editor)
static Dimension	getWordDimensionAtCaret(JTextComponent editor)
static Dimension	getWordDimensionBeforeCaret(JTextComponent editor)
static int	getWordEnd(JTextComponent editor, int iOffset)
static int	getWordStart(JTextComponent editor, int iOffset)
static void	handleHomeKey(JTextComponent editor)
private static boolean	isAdditionalSymbol(String currWord, String strPossibleAdditionalSymbol, String symbol)
static boolean	isNonWhitespaceBetween(JTextComponent editor, int iStart, int iEnd)
static boolean	isValidIdentifier(CharSequence seqId, boolean acceptDot)
static void	jumpLeft(JTextComponent editor)
static void	jumpRight(JTextComponent editor)
static String	makeValidIdentifier(String str, boolean acceptDot, boolean bAcceptUnderscore)
private static int	maybeAdjustOffsetToNextWord(String text, int iOffset)
private static void	performCompoundUndableEdit(JTextComponent editor, Runnable edit)
static int	replaceWordAtCaret(JTextComponent editor, String strText)
static void	replaceWordAtCaretDynamic(JTextComponent editor, String strText, IReplaceWordCallback replaceWordCallback, boolean selectFirstArg, boolean replaceWholeWord)
static void	replaceWordAtCaretDynamicAndRemoveEmptyParens(JTextComponent editor, String strText, IReplaceWordCallback replaceWordCallback, boolean selectFirstArg, boolean replaceWholeWord)
static void	replaceWordAtCaretNice(JTextComponent editor, String strText)
static void	replaceWordAtClosestDot(JTextComponent editor, String strText)
static int	replaceWordBeforeCaret(JTextComponent editor, String strText)
private static void	selectFirstArg(String strText, int initialSelectionStart, JTextComponent editor)
static void	selectLeft(JTextComponent editor)
static void	selectLineAtCaret(JTextComponent editor)
static void	selectRight(JTextComponent editor)
static void	selectWordAtCaret(JTextComponent editor)
static void	showPasteBufferDialogForComponent(JTextComponent component)
static void	unindentLineAtCaret(JTextComponent editor)

Methods inherited from class java.lang.Object

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

Field Details

SIGNIFICANT_CHARS

private static final Set<String> SIGNIFICANT_CHARS

SHOW_PASTE_BUFFER

private static final String SHOW_PASTE_BUFFER

See Also:

• Constant Field Values

Constructor Details

TextComponentUtil

public TextComponentUtil()

Method Details

findCharacterPositionOnLine

public static int findCharacterPositionOnLine(int startPosition,
 String string,
 char charToFind,
 TextComponentUtil.Direction d)

getWordAtCaret

public static String getWordAtCaret(JTextComponent editor)

getPartialWordBeforeCaret

public static String getPartialWordBeforeCaret(JTextComponent editor)

getPartialWordBeforePos

public static String getPartialWordBeforePos(JTextComponent editor,
 int iPos)

getWordDimensionAtCaret

public static Dimension getWordDimensionAtCaret(JTextComponent editor)

getWordDimensionBeforeCaret

public static Dimension getWordDimensionBeforeCaret(JTextComponent editor)

getMemberDimensionAtCaret

public static Dimension getMemberDimensionAtCaret(JTextComponent editor)

getMemberAtCaret

public static String getMemberAtCaret(JTextComponent editor)

selectWordAtCaret

public static void selectWordAtCaret(JTextComponent editor)

replaceWordAtClosestDot

public static void replaceWordAtClosestDot(JTextComponent editor,
 String strText)

selectFirstArg

private static void selectFirstArg(String strText,
 int initialSelectionStart,
 JTextComponent editor)
                            throws BadLocationException

Throws:

BadLocationException

replaceWordAtCaret

public static int replaceWordAtCaret(JTextComponent editor,
 String strText)

Returns:

offset of replaced word

replaceWordBeforeCaret

public static int replaceWordBeforeCaret(JTextComponent editor,
 String strText)

Returns:

offset of replaced word

replaceWordAtCaretNice

public static void replaceWordAtCaretNice(JTextComponent editor,
 String strText)

replaceWordAtCaretDynamic

public static void replaceWordAtCaretDynamic(JTextComponent editor,
 String strText,
 IReplaceWordCallback replaceWordCallback,
 boolean selectFirstArg,
 boolean replaceWholeWord)

replaceWordAtCaretDynamicAndRemoveEmptyParens

public static void replaceWordAtCaretDynamicAndRemoveEmptyParens(JTextComponent editor,
 String strText,
 IReplaceWordCallback replaceWordCallback,
 boolean selectFirstArg,
 boolean replaceWholeWord)

performCompoundUndableEdit

private static void performCompoundUndableEdit(JTextComponent editor,
 Runnable edit)

getWordStart

public static int getWordStart(JTextComponent editor,
 int iOffset)
                        throws BadLocationException

Throws:

BadLocationException

getWordEnd

public static int getWordEnd(JTextComponent editor,
 int iOffset)
                      throws BadLocationException

Throws:

BadLocationException

maybeAdjustOffsetToNextWord

private static int maybeAdjustOffsetToNextWord(String text,
 int iOffset)
                                        throws BadLocationException

Throws:

BadLocationException

getPreviousWord

private static int getPreviousWord(JTextComponent editor,
 int iOffset)
                            throws BadLocationException

Throws:

BadLocationException

adjustForLineComment

public static int adjustForLineComment(JTextComponent editor,
 int iStart)
                                throws BadLocationException

Throws:

BadLocationException

isNonWhitespaceBetween

public static boolean isNonWhitespaceBetween(JTextComponent editor,
 int iStart,
 int iEnd)

isAdditionalSymbol

private static boolean isAdditionalSymbol(String currWord,
 String strPossibleAdditionalSymbol,
 String symbol)

getLineStartAndEndPositions

public static int[] getLineStartAndEndPositions(String text,
 int initialCaretPosition)

This will return a two element array, start line pos and end line pos.

The character from the document for the startPos will be the first character of the line

The character from the document for the endPos will be the last character of the line, i.e. the char before the new line if one is present.

Returns:

a two element array with the start and end positions of the given line

getLineStart

public static int getLineStart(String text,
 int initialCaretPosition)

getLineEnd

public static int getLineEnd(String text,
 int initialCaretPosition)

deleteWordAtCaret

public static void deleteWordAtCaret(JTextComponent editor)
                              throws BadLocationException

Throws:

BadLocationException

findPreviousTextChunk

protected static String findPreviousTextChunk(int startPosition,
 String text)

getLineAtPosition

public static int getLineAtPosition(JTextComponent editor,
 int position)

Gets the line at a given position in the editor

getColumnAtPosition

public static int getColumnAtPosition(JTextComponent editor,
 int caretPosition)

getWhiteSpaceLineStartBefore

public static int getWhiteSpaceLineStartBefore(String script,
 int start)

Returns the start of the previous line if that line is only whitespace. Returns -1 otherwise.

getWhiteSpaceLineStartAfter

public static int getWhiteSpaceLineStartAfter(String script,
 int end)

Returns the start of the next line if that line is only whitespace. Returns -1 otherwise.

getWhiteSpaceOrCommentLineStartBefore

public static int getWhiteSpaceOrCommentLineStartBefore(String script,
 int start)

Returns the start of the previous line if that line is only whitespace. Returns -1 otherwise.

getWhiteSpaceOrCommentLineStartAfter

public static int getWhiteSpaceOrCommentLineStartAfter(String script,
 int end)

Returns the start of the next line if that line is only whitespace. Returns -1 otherwise.

getDeepestWhiteSpaceLineStartAfter

public static int getDeepestWhiteSpaceLineStartAfter(String script,
 int offset)

Eats whitespace lines after the given offset until it finds a non-whitespace line and returns the start of the last whitespace line found, or the initial value if none was.

findNonWhitespacePositionAfter

public static int findNonWhitespacePositionAfter(String script,
 int position)

Returns:

the next non-whitespace position in the given script

findNonWhitespacePositionBefore

public static int findNonWhitespacePositionBefore(String script,
 int position)

Returns:

the first non-whitespace position in the given script before the given position

getNextWordPostition

public static int getNextWordPostition(int pos,
 String source,
 boolean consumeWhitespaceFirst)

getCharClass

private static int getCharClass(char c)

fixTextComponentKeyMap

public static void fixTextComponentKeyMap(JTextComponent editor)

expandSelectionIfNeeded

public static void expandSelectionIfNeeded(JTextComponent editor)

selectLineAtCaret

public static void selectLineAtCaret(JTextComponent editor)

selectRight

public static void selectRight(JTextComponent editor)

jumpRight

public static void jumpRight(JTextComponent editor)

jumpLeft

public static void jumpLeft(JTextComponent editor)

selectLeft

public static void selectLeft(JTextComponent editor)

handleHomeKey

public static void handleHomeKey(JTextComponent editor)

showPasteBufferDialogForComponent

public static void showPasteBufferDialogForComponent(JTextComponent component)

unindentLineAtCaret

public static void unindentLineAtCaret(JTextComponent editor)
                                throws BadLocationException

Throws:

BadLocationException

getIdentifierAtCaret

public static String getIdentifierAtCaret(EditorHostTextPane editor)

isValidIdentifier

public static boolean isValidIdentifier(CharSequence seqId,
 boolean acceptDot)

makeValidIdentifier

public static String makeValidIdentifier(String str,
 boolean acceptDot,
 boolean bAcceptUnderscore)