/**
* Finds the next instance of the string/regular expression specified from the caret position. If
* a match is found, it is selected in this text area.
*
* @param textArea The text area in which to search.
* @param context What to search for and all search options.
* @return Whether a match was found (and thus selected).
* @throws PatternSyntaxException If this is a regular expression search but the search text is an
* invalid regular expression.
* @see #replace(RTextArea, SearchContext)
* @see #replaceAll(RTextArea, SearchContext)
*/
public static boolean find(JTextArea textArea, SearchContext context) {
String text = context.getSearchFor();
if (text == null || text.length() == 0) {
return false;
}
// Be smart about what position we're "starting" at. We don't want
// to find a match in the currently selected text (if any), so we
// start searching AFTER the selection if searching forward, and
// BEFORE the selection if searching backward.
Caret c = textArea.getCaret();
boolean forward = context.getSearchForward();
int start = forward ? Math.max(c.getDot(), c.getMark()) : Math.min(c.getDot(), c.getMark());
String findIn = getFindInText(textArea, start, forward);
if (findIn == null || findIn.length() == 0) return false;
// Find the next location of the text we're searching for.
if (!context.isRegularExpression()) {
int pos =
getNextMatchPos(text, findIn, forward, context.getMatchCase(), context.getWholeWord());
findIn = null; // May help garbage collecting.
if (pos != -1) {
// Without this, if JTextArea isn't in focus, selection
// won't appear selected.
c.setSelectionVisible(true);
pos = forward ? start + pos : pos;
selectAndPossiblyCenter(textArea, pos, pos + text.length());
return true;
}
} else {
// Regex matches can have varying widths. The returned point's
// x- and y-values represent the start and end indices of the
// match in findIn.
Point regExPos =
getNextMatchPosRegEx(
text, findIn, forward, context.getMatchCase(), context.getWholeWord());
findIn = null; // May help garbage collecting.
if (regExPos != null) {
// Without this, if JTextArea isn't in focus, selection
// won't appear selected.
c.setSelectionVisible(true);
if (forward) {
regExPos.translate(start, start);
}
selectAndPossiblyCenter(textArea, regExPos.x, regExPos.y);
return true;
}
}
// No match.
return false;
}
/**
* Replaces the currently selected content with new content represented by the given StyledText.
* If there is no selection this amounts to an insert of the given text. If there is no
* replacement text this amounts to a removal of the current selection. The replacement text will
* have the attributes currently defined for input at the point of insertion. If the document is
* not editable, beep and return
*
* @param content the content to replace the selection with
* @see StyledText#insert
*/
public static void replaceSelection(Word word, StyledText content) {
Document doc = word.workspace.getDocument();
String text;
Caret caret = word.workspace.getCaret();
int insertPos = 0;
int i;
int contentSize;
if (doc != null) {
try {
int p0 = Math.min(caret.getDot(), caret.getMark());
int p1 = Math.max(caret.getDot(), caret.getMark());
// if there is any selection
if (p0 != p1) {
doc.remove(p0, p1 - p0);
}
// insert the content
if (content != null) {
content.insert(doc, p0);
}
} catch (BadLocationException ble) {
javax.swing.UIManager.getLookAndFeel().provideErrorFeedback(word.workspace);
return;
}
}
}
@Override
public void internalFrameActivated(InternalFrameEvent e) {
super.internalFrameActivated(e);
mainFrame.pasteItem.setEnabled(canPaste());
Caret caret = sourceArea.getCaret();
doCaretUpdate(caret.getDot(), caret.getMark());
setUndoItem();
setRedoItem();
}
public void actionPerformed(JTextComponent text) {
indentationLogic = ((EditorPane) text).getIndentationLogic();
StyledDocument doc = (StyledDocument) text.getDocument();
Element map = doc.getDefaultRootElement();
Caret c = text.getCaret();
int dot = c.getDot();
int mark = c.getMark();
int line1 = map.getElementIndex(dot);
if (dot != mark) {
int line2 = map.getElementIndex(mark);
int begin = Math.min(line1, line2);
int end = Math.max(line1, line2);
Element elem;
try {
for (line1 = begin; line1 < end; line1++) {
elem = map.getElement(line1);
handleDecreaseIndent(line1, elem, doc);
}
elem = map.getElement(end);
int start = elem.getStartOffset();
if (Math.max(c.getDot(), c.getMark()) != start) {
handleDecreaseIndent(end, elem, doc);
}
} catch (BadLocationException ble) {
Debug.error(me + "Problem while de-indenting line\n%s", ble.getMessage());
UIManager.getLookAndFeel().provideErrorFeedback(text);
}
} else {
Element elem = map.getElement(line1);
try {
handleDecreaseIndent(line1, elem, doc);
} catch (BadLocationException ble) {
Debug.error(me + "Problem while de-indenting line\n%s", ble.getMessage());
UIManager.getLookAndFeel().provideErrorFeedback(text);
}
}
}
public void actionPerformed(JTextComponent text) {
indentationLogic = ((EditorPane) text).getIndentationLogic();
boolean indentError = false;
Document doc = text.getDocument();
Element map = doc.getDefaultRootElement();
String tabWhitespace = PreferencesUser.getInstance().getTabWhitespace();
Caret c = text.getCaret();
int dot = c.getDot();
int mark = c.getMark();
int dotLine = map.getElementIndex(dot);
int markLine = map.getElementIndex(mark);
if (dotLine != markLine) {
int first = Math.min(dotLine, markLine);
int last = Math.max(dotLine, markLine);
Element elem;
int start;
try {
for (int i = first; i < last; i++) {
elem = map.getElement(i);
start = elem.getStartOffset();
doc.insertString(start, tabWhitespace, null);
}
elem = map.getElement(last);
start = elem.getStartOffset();
if (Math.max(c.getDot(), c.getMark()) != start) {
doc.insertString(start, tabWhitespace, null);
}
} catch (BadLocationException ble) {
Debug.error(me + "Problem while indenting line\n%s", ble.getMessage());
UIManager.getLookAndFeel().provideErrorFeedback(text);
}
} else {
text.replaceSelection(tabWhitespace);
}
}
@Override
public void actionPerformed(ActionEvent e) {
JTextComponent textArea = (JTextComponent) e.getSource();
Caret caret = textArea.getCaret();
int dot = caret.getDot();
/*
* Move to the beginning/end of selection on a "non-shifted"
* left- or right-keypress. We shouldn't have to worry about
* navigation filters as, if one is being used, it let us get
* to that position before.
*/
if (!select) {
switch (direction) {
case SwingConstants.EAST:
int mark = caret.getMark();
if (dot != mark) {
caret.setDot(Math.max(dot, mark));
return;
}
break;
case SwingConstants.WEST:
mark = caret.getMark();
if (dot != mark) {
caret.setDot(Math.min(dot, mark));
return;
}
break;
default:
}
}
Position.Bias[] bias = new Position.Bias[1];
Point magicPosition = caret.getMagicCaretPosition();
try {
if (magicPosition == null
&& (direction == SwingConstants.NORTH || direction == SwingConstants.SOUTH)) {
Rectangle r = textArea.modelToView(dot);
magicPosition = new Point(r.x, r.y);
}
NavigationFilter filter = textArea.getNavigationFilter();
if (filter != null) {
dot =
filter.getNextVisualPositionFrom(
textArea, dot, Position.Bias.Forward, direction, bias);
} else {
if (direction == SwingConstants.NORTH || direction == SwingConstants.SOUTH) {
dot = getNSVisualPosition((EditorPane) textArea, dot, direction);
} else {
dot =
textArea
.getUI()
.getNextVisualPositionFrom(
textArea, dot, Position.Bias.Forward, direction, bias);
}
}
if (select) {
caret.moveDot(dot);
} else {
caret.setDot(dot);
}
if (magicPosition != null
&& (direction == SwingConstants.NORTH || direction == SwingConstants.SOUTH)) {
caret.setMagicCaretPosition(magicPosition);
}
} catch (BadLocationException ble) {
Debug.error(me + "Problem while trying to move caret\n%s", ble.getMessage());
}
}
/**
* Makes the caret's dot and mark the same location so that, for the next search in the specified
* direction, a match will be found even if it was within the original dot and mark's selection.
*
* @param textArea The text area.
* @param forward Whether the search will be forward through the document (<code>false</code>
* means backward).
* @return The new dot and mark position.
*/
private static int makeMarkAndDotEqual(JTextArea textArea, boolean forward) {
Caret c = textArea.getCaret();
int val = forward ? Math.min(c.getDot(), c.getMark()) : Math.max(c.getDot(), c.getMark());
c.setDot(val);
return val;
}