Example usage for javax.swing.text Document remove

List of usage examples for javax.swing.text Document remove

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Introduction

In this page you can find the example usage for javax.swing.text Document remove.

Prototype

public void remove(int offs, int len) throws BadLocationException;

Source Link

Document

Removes a portion of the content of the document.

Usage

From source file:ch.zhaw.iamp.rct.ui.GrammarWindow.java

private void removeTabIfPossilbe(KeyEvent event, JTextComponent component) {
    try {/*www  .j  av a2 s.  c om*/
        Document doc = component.getDocument();
        int caretPostion = component.getCaretPosition();
        int lineStartIndex = doc.getText(0, caretPostion).lastIndexOf('\n') + 1;
        lineStartIndex = lineStartIndex < 0 ? 0 : lineStartIndex;
        lineStartIndex = lineStartIndex >= doc.getLength() ? doc.getLength() - 1 : lineStartIndex;
        int scanEndIndex = lineStartIndex + 4 <= doc.getLength() ? lineStartIndex + 4 : doc.getLength();

        for (int i = 0; i < 4 && i + lineStartIndex < scanEndIndex; i++) {
            if (doc.getText(lineStartIndex, 1).matches(" ")) {
                doc.remove(lineStartIndex, 1);
            } else if (doc.getText(lineStartIndex, 1).matches("\t")) {
                doc.remove(lineStartIndex, 1);
                break;
            } else {
                break;
            }
        }

        event.consume();
    } catch (BadLocationException ex) {
        System.out.println("Could not insert a tab: " + ex.getMessage());
    }
}

From source file:com.hexidec.ekit.EkitCore.java

/**
 * Method for finding (and optionally replacing) a string in the text
 *///from ww  w  . j a v  a  2  s  .  c om
private int findText(String findTerm, String replaceTerm, boolean bCaseSenstive, int iOffset) {
    JTextComponent jtpFindSource;
    if (sourceWindowActive || jtpSource.hasFocus()) {
        jtpFindSource = (JTextComponent) jtpSource;
    } else {
        jtpFindSource = (JTextComponent) jtpMain;
    }
    int searchPlace = -1;
    try {
        Document baseDocument = jtpFindSource.getDocument();
        searchPlace = (bCaseSenstive
                ? baseDocument.getText(0, baseDocument.getLength()).indexOf(findTerm, iOffset)
                : baseDocument.getText(0, baseDocument.getLength()).toLowerCase()
                        .indexOf(findTerm.toLowerCase(), iOffset));
        if (searchPlace > -1) {
            if (replaceTerm != null) {
                AttributeSet attribs = null;
                if (baseDocument instanceof HTMLDocument) {
                    Element element = ((HTMLDocument) baseDocument).getCharacterElement(searchPlace);
                    attribs = element.getAttributes();
                }
                baseDocument.remove(searchPlace, findTerm.length());
                baseDocument.insertString(searchPlace, replaceTerm, attribs);
                jtpFindSource.setCaretPosition(searchPlace + replaceTerm.length());
                jtpFindSource.requestFocus();
                jtpFindSource.select(searchPlace, searchPlace + replaceTerm.length());
            } else {
                jtpFindSource.setCaretPosition(searchPlace + findTerm.length());
                jtpFindSource.requestFocus();
                jtpFindSource.select(searchPlace, searchPlace + findTerm.length());
            }
        }
    } catch (BadLocationException ble) {
        logException("BadLocationException in actionPerformed method", ble);
        new SimpleInfoDialog(this.getWindow(), Translatrix.getTranslationString("Error"), true,
                Translatrix.getTranslationString("ErrorBadLocationException"), SimpleInfoDialog.ERROR);
    }
    return searchPlace;
}

From source file:org.domainmath.gui.MainFrame.java

public void deleteText() {
    RSyntaxTextArea textArea = commandArea;
    boolean beep = true;
    if ((textArea != null) && (textArea.isEditable())) {
        try {/*from  w  w  w.j a  v  a2 s . c  o  m*/
            Document doc = textArea.getDocument();
            Caret caret = textArea.getCaret();
            int dot = caret.getDot();
            int mark = caret.getMark();
            if (dot != mark) {
                doc.remove(Math.min(dot, mark), Math.abs(dot - mark));
                beep = false;
            } else if (dot < doc.getLength()) {
                int delChars = 1;
                if (dot < doc.getLength() - 1) {
                    String dotChars = doc.getText(dot, 2);
                    char c0 = dotChars.charAt(0);
                    char c1 = dotChars.charAt(1);
                    if (c0 >= '\uD800' && c0 <= '\uDBFF' && c1 >= '\uDC00' && c1 <= '\uDFFF') {
                        delChars = 2;
                    }
                }
                doc.remove(dot, delChars);
                beep = false;
            }
        } catch (Exception bl) {
        }
    }

    if (beep) {
        UIManager.getLookAndFeel().provideErrorFeedback(textArea);
    }

    textArea.requestFocusInWindow();
}

From source file:org.executequery.gui.editor.autocomplete.QueryEditorAutoCompletePopupProvider.java

public void popupSelectionMade() {

    AutoCompleteListItem selectedListItem = (AutoCompleteListItem) autoCompletePopup.getSelectedItem();

    if (selectedListItem == null || selectedListItem.isNothingProposed()) {

        return;/*from  w ww .  j a  v  a 2  s  .  c  o  m*/
    }

    String selectedValue = selectedListItem.getInsertionValue();

    try {

        JTextComponent textComponent = queryEditorTextComponent();
        Document document = textComponent.getDocument();

        int caretPosition = textComponent.getCaretPosition();
        String wordAtCursor = queryEditor.getWordToCursor();

        if (StringUtils.isNotBlank(wordAtCursor)) {

            int wordAtCursorLength = wordAtCursor.length();
            int insertionIndex = caretPosition - wordAtCursorLength;

            if (selectedListItem.isKeyword() && isAllLowerCase(wordAtCursor)) {

                selectedValue = selectedValue.toLowerCase();
            }

            if (!Character.isLetterOrDigit(wordAtCursor.charAt(0))) {

                // cases where you might have a.column_name or similar

                insertionIndex++;
                wordAtCursorLength--;

            } else if (wordAtCursor.contains(".")) {

                int index = wordAtCursor.indexOf(".");
                insertionIndex += index + 1;
                wordAtCursorLength -= index + 1;
            }

            document.remove(insertionIndex, wordAtCursorLength);
            document.insertString(insertionIndex, selectedValue, null);

        } else {

            document.insertString(caretPosition, selectedValue, null);
        }

    } catch (BadLocationException e) {

        debug("Error on autocomplete insertion", e);

    } finally {

        autoCompletePopup.hidePopup();
    }

}

From source file:org.executequery.gui.editor.QueryEditorTextPanel.java

private void removeCommentFromRows(int startRow, int endRow) throws BadLocationException {

    Document document = queryPane.getDocument();

    Matcher matcher = sqlCommentMatcher();

    for (int i = startRow; i <= endRow; i++) {

        String text = queryPane.getTextAtRow(i);

        matcher.reset(text);/*from  ww  w  . j a  v a2  s .  co  m*/

        if (matcher.find()) {

            // retrieve the exact index of '--' since
            // matcher will return first whitespace

            int index = text.indexOf(SQL_COMMENT);
            int startOffset = queryPane.getRowPosition(i);

            document.remove(startOffset + index, 2);
        }

    }

}

From source file:org.languagetool.gui.LanguageToolSupport.java

private void applySuggestion(String str, int start, int end) {
    if (end < start) {
        throw new IllegalArgumentException("end before start: " + end + " < " + start);
    }//  www.  j a va 2s.co  m
    Document doc = this.textComponent.getDocument();
    if (doc != null) {
        try {
            if (this.undo != null) {
                this.undo.startCompoundEdit();
            }
            if (doc instanceof AbstractDocument) {
                ((AbstractDocument) doc).replace(start, end - start, str, null);
            } else {
                doc.remove(start, end - start);
                doc.insertString(start, str, null);
            }
        } catch (BadLocationException e) {
            throw new IllegalArgumentException(e);
        } finally {
            if (this.undo != null) {
                this.undo.endCompoundEdit();
            }
        }
    }
}

From source file:processing.app.EditorTab.java

/**
 * Replace the entire contents of this tab.
 *///from   w  w w . ja v  a 2  s.  co m
public void setText(String what) {
    // Remove all highlights, since these will all end up at the start of the
    // text otherwise. Preserving them is tricky, so better just remove them.
    textarea.removeAllLineHighlights();
    // Set the caret update policy to NEVER_UPDATE while completely replacing
    // the current text. Normally, the caret tracks inserts and deletions, but
    // replacing the entire text will always make the caret end up at the end,
    // which isn't really useful. With NEVER_UPDATE, the caret will just keep
    // its absolute position (number of characters from the start), which isn't
    // always perfect, but the best we can do without making a diff of the old
    // and new text and some guesswork.
    // Note that we cannot use textarea.setText() here, since that first removes
    // text and then inserts the new text. Even with NEVER_UPDATE, the caret
    // always makes sure to stay valid, so first removing all text makes it
    // reset to 0. Also note that simply saving and restoring the caret position
    // will work, but then the scroll position might change in response to the
    // caret position.
    DefaultCaret caret = (DefaultCaret) textarea.getCaret();
    int policy = caret.getUpdatePolicy();
    caret.setUpdatePolicy(DefaultCaret.NEVER_UPDATE);
    try {
        Document doc = textarea.getDocument();
        int oldLength = doc.getLength();
        // The undo manager already seems to group the insert and remove together
        // automatically, but better be explicit about it.
        textarea.beginAtomicEdit();
        try {
            doc.insertString(oldLength, what, null);
            doc.remove(0, oldLength);
        } catch (BadLocationException e) {
            System.err.println("Unexpected failure replacing text");
        } finally {
            textarea.endAtomicEdit();
        }
    } finally {
        caret.setUpdatePolicy(policy);
    }
}

From source file:tk.tomby.tedit.core.snr.FindReplaceWorker.java

/**
 * DOCUMENT ME!/*from   www.  j a  va 2  s  .  c o  m*/
 */
public void replace() {
    String replace = PreferenceManager.getString("snr.replace", "");

    if ((replace != null) && !replace.equals("")) {
        int start = buffer.getSelectionStart();
        int end = buffer.getSelectionEnd();

        if (start != end) {
            Document doc = buffer.getDocument();

            try {
                doc.remove(start, end - start);
                doc.insertString(start, replace, null);
            } catch (BadLocationException e) {
                log.error(e.getMessage(), e);
            }
        }
    }
}