Package org.qdl_lang.gui

Class LineUtil

java.lang.Object

org.qdl_lang.gui.LineUtil

public class LineUtil
extends Object

Do line operations on a text area. This allows you to insert a line, cut, copy or paste a line and move lines. This is generally intended to be used as a utility for the SwingTerminal.

Created by Jeff Gaynor
on 3/17/23 at 7:39 AM

Field Summary

Fields

Modifier and Type	Field	Description
static String	COPY_LINE
static String	CUT_LINE
static String	DOWN_LINE
static String	DUPLICATE_LINE
static String	JOIN_LINE
static String	PASTE_LINES
static String	TOGGLE_COMMENT_LINE
static String	UP_LINE

Constructor Summary

Constructors

Constructor	Description
LineUtil()

Method Summary

Modifier and Type	Method	Description
protected static boolean	checkPosition(List<String> lines, int position)	Checks that the position of the caret is in the list of lines.
protected static boolean	checkString(String out)
protected static ArrayList<String>	doClipboardCopyorCut(ArrayList<String> lines, int position, boolean isCut)
static String	doOperation(String text, int lineNumber, String operation)
protected static ArrayList<String>	duplicateLine(ArrayList<String> lines, int position)
static Clipboard	getClipboard()
static int	getFirstNonwhitespaceIndex(String string)
protected static boolean	hasClipboard()
static void	main(String[] args)
protected static ArrayList<String>	pasteLines(ArrayList<String> lines, int position)
protected static void	testInputForm()
protected static void	testLineModes()
protected static ArrayList<String>	toggleComment(ArrayList<String> lines, int lineNumber)
static String	toInputForm(String in, boolean isLongForm)	Converts a string (from the clipboard) to input form.
static ArrayList<String>	toLines(String text)	Has to be an array list to get remove() and other methods.

Methods inherited from class java.lang.Object

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

Field Detail

COPY_LINE

public static final String COPY_LINE

See Also:

Constant Field Values

DUPLICATE_LINE

public static final String DUPLICATE_LINE

See Also:

Constant Field Values

PASTE_LINES

public static final String PASTE_LINES

See Also:

Constant Field Values

CUT_LINE

public static final String CUT_LINE

See Also:

Constant Field Values

UP_LINE

public static final String UP_LINE

See Also:

Constant Field Values

DOWN_LINE

public static final String DOWN_LINE

See Also:

Constant Field Values

TOGGLE_COMMENT_LINE

public static final String TOGGLE_COMMENT_LINE

See Also:

Constant Field Values

JOIN_LINE

public static final String JOIN_LINE

See Also:

Constant Field Values

Constructor Detail

LineUtil

public LineUtil()

Method Detail

doOperation

public static String doOperation(String text,
                                 int lineNumber,
                                 String operation)
                          throws IOException,
                                 UnsupportedFlavorException

Throws:

IOException

UnsupportedFlavorException

toLines

public static ArrayList<String> toLines(String text)

Has to be an array list to get remove() and other methods.

Parameters:

text -

Returns:

checkPosition

protected static boolean checkPosition(List<String> lines,
                                       int position)

Checks that the position of the caret is in the list of lines. True if ok, false otherwise.

Parameters:

lines -

position -

Returns:

getClipboard

public static Clipboard getClipboard()

hasClipboard

protected static boolean hasClipboard()

doClipboardCopyorCut

protected static ArrayList<String> doClipboardCopyorCut(ArrayList<String> lines,
                                                        int position,
                                                        boolean isCut)
                                                 throws IOException,
                                                        UnsupportedFlavorException

Throws:

IOException

UnsupportedFlavorException

duplicateLine

protected static ArrayList<String> duplicateLine(ArrayList<String> lines,
                                                 int position)

pasteLines

protected static ArrayList<String> pasteLines(ArrayList<String> lines,
                                              int position)
                                       throws IOException,
                                              UnsupportedFlavorException

Throws:

IOException

UnsupportedFlavorException

toggleComment

protected static ArrayList<String> toggleComment(ArrayList<String> lines,
                                                 int lineNumber)

getFirstNonwhitespaceIndex

public static int getFirstNonwhitespaceIndex(String string)

testInputForm

protected static void testInputForm()
                             throws Throwable

Throws:

Throwable

testLineModes

protected static void testLineModes()
                             throws Throwable

Throws:

Throwable

main

public static void main(String[] args)
                 throws Throwable

Throws:

Throwable

toInputForm

public static String toInputForm(String in,
                                 boolean isLongForm)

Converts a string (from the clipboard) to input form. This checks if it is a string and if not just returns it. If it is, then shoirt form is a single line of input form, long form break it up into lines and formats each one as a concatenation. The latter is really useful when pasting things like long formatted JSON blobs.

Parameters:

in -

isLongForm -

Returns:

checkString

protected static boolean checkString(String out)