Example usage for javax.swing.text StyledDocument getCharacterElement

List of usage examples for javax.swing.text StyledDocument getCharacterElement

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  6. getCharacterElement

Introduction

In this page you can find the example usage for javax.swing.text StyledDocument getCharacterElement.

Prototype

public Element getCharacterElement(int pos);

Source Link

Document

Gets the element that represents the character that is at the given offset within the document.

Usage

From source file:Main.java

public static void main(String args[]) throws BadLocationException {
    JTextPane textPane1 = new JTextPane();

    MutableAttributeSet black = new SimpleAttributeSet();
    MutableAttributeSet red = new SimpleAttributeSet();

    StyleConstants.setForeground(black, Color.black);
    StyleConstants.setForeground(red, Color.red);
    textPane1.setEditorKit(new StyledEditorKit());
    doc1 = textPane1.getDocument();//ww  w  .  java2  s.  c  o m

    append1("This is a Test!\n");

    attribute = red;
    append1("Hello world! Hello Stackoverflow\n");

    attribute = black;
    append1("the text is black again\n");

    StyledDocument styledDocument = textPane1.getStyledDocument();
    Element element;

    JTextPane textPane2 = new JTextPane();
    textPane2.setEditorKit(new StyledEditorKit());

    doc2 = textPane2.getDocument();
    for (int i = 0; i < styledDocument.getLength(); i++) {
        element = styledDocument.getCharacterElement(i);
        AttributeSet attributeNew = element.getAttributes();
        System.out.println(i);
        append2(styledDocument.getText(i, 1), attributeNew);
    }

    JFrame frame1 = new JFrame();
    frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame1.setSize(400, 300);
    frame1.getContentPane().add(new JScrollPane(textPane1), BorderLayout.CENTER);
    frame1.setVisible(true);

    JFrame frame2 = new JFrame();
    frame2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame2.setSize(400, 300);
    frame2.setLocation(300, 0);
    frame2.getContentPane().add(new JScrollPane(textPane2), BorderLayout.CENTER);
    frame2.setVisible(true);
}

From source file:Main.java

private static AttributeSet getAttributes(MouseEvent e) {
    JTextPane text = (JTextPane) e.getSource();
    Point mouseLocation = new Point(e.getX(), e.getY());
    int pos = text.viewToModel(mouseLocation);

    if (pos >= 0) {
        try {/*from w  w  w.  jav a2 s.  c o  m*/
            Rectangle rect = text.modelToView(pos);
            int lowerCorner = rect.y + rect.height;
            if (e.getX() < rect.x && e.getY() < lowerCorner && pos > 0) {
                pos--;
            }
        } catch (BadLocationException ex) {
            ex.printStackTrace();
        }
        StyledDocument doc = text.getStyledDocument();
        Element element = doc.getCharacterElement(pos);
        return element.getAttributes();
    }
    return null;
}

From source file:Main.java

private void changeStyle() {
    StyledDocument doc = (StyledDocument) textPane.getDocument();
    int selectionEnd = textPane.getSelectionEnd();
    int selectionStart = textPane.getSelectionStart();
    if (selectionStart == selectionEnd) {
        return;/*from w ww. j av a2  s  .  c  o m*/
    }
    Element element = doc.getCharacterElement(selectionStart);
    AttributeSet as = element.getAttributes();

    MutableAttributeSet asNew = new SimpleAttributeSet(as.copyAttributes());
    StyleConstants.setBold(asNew, !StyleConstants.isBold(as));
    doc.setCharacterAttributes(selectionStart, textPane.getSelectedText().length(), asNew, true);
    String text = (StyleConstants.isBold(as) ? "Cancel Bold" : "Bold");
    btnStyle.setText(text);
}

From source file:MainClass.java

public void actionPerformed(ActionEvent e) {
    JTextPane editor = (JTextPane) getEditor(e);

    if (editor == null) {
        JOptionPane.showMessageDialog(null,
                "You need to select the editor pane before you can change the color.", "Error",
                JOptionPane.ERROR_MESSAGE);
        return;/*from   w w w .  ja  va  2  s .c  o m*/
    }
    int p0 = editor.getSelectionStart();
    StyledDocument doc = getStyledDocument(editor);
    Element paragraph = doc.getCharacterElement(p0);
    AttributeSet as = paragraph.getAttributes();
    fg = StyleConstants.getForeground(as);
    if (fg == null) {
        fg = Color.BLACK;
    }
    colorChooser.setColor(fg);

    JButton accept = new JButton("OK");
    accept.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
            fg = colorChooser.getColor();
            dialog.dispose();
        }
    });

    JButton cancel = new JButton("Cancel");
    cancel.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
            cancelled = true;
            dialog.dispose();
        }
    });

    JButton none = new JButton("None");
    none.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
            noChange = true;
            dialog.dispose();
        }
    });

    JPanel buttons = new JPanel();
    buttons.add(accept);
    buttons.add(none);
    buttons.add(cancel);

    dialog.getContentPane().setLayout(new BorderLayout());
    dialog.getContentPane().add(colorChooser, BorderLayout.CENTER);
    dialog.getContentPane().add(buttons, BorderLayout.SOUTH);
    dialog.setModal(true);
    dialog.pack();
    dialog.setVisible(true);

    if (!cancelled) {

        MutableAttributeSet attr = null;
        if (editor != null) {
            if (fg != null && !noChange) {
                attr = new SimpleAttributeSet();
                StyleConstants.setForeground(attr, fg);
                setCharacterAttributes(editor, attr, false);
            }
        }
    } // end if color != null
    noChange = false;
    cancelled = false;
}

From source file:MainClass.java

public void actionPerformed(ActionEvent e) {
    JTextPane editor = (JTextPane) getEditor(e);
    int p0 = editor.getSelectionStart();
    StyledDocument doc = getStyledDocument(editor);
    Element paragraph = doc.getCharacterElement(p0);
    AttributeSet as = paragraph.getAttributes();

    family = StyleConstants.getFontFamily(as);
    fontSize = StyleConstants.getFontSize(as);

    formatText = new JDialog(new JFrame(), "Font and Size", true);
    formatText.getContentPane().setLayout(new BorderLayout());

    JPanel choosers = new JPanel();
    choosers.setLayout(new GridLayout(2, 1));

    JPanel fontFamilyPanel = new JPanel();
    fontFamilyPanel.add(new JLabel("Font"));

    GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    String[] fontNames = ge.getAvailableFontFamilyNames();

    fontFamilyChooser = new JComboBox();
    for (int i = 0; i < fontNames.length; i++) {
        fontFamilyChooser.addItem(fontNames[i]);
    }//from  w  ww .  ja  v  a 2  s .  c  o m
    fontFamilyChooser.setSelectedItem(family);
    fontFamilyPanel.add(fontFamilyChooser);
    choosers.add(fontFamilyPanel);

    JPanel fontSizePanel = new JPanel();
    fontSizePanel.add(new JLabel("Size"));
    fontSizeChooser = new JComboBox();
    fontSizeChooser.setEditable(true);
    fontSizeChooser.addItem(new Float(4));
    fontSizeChooser.addItem(new Float(8));
    fontSizeChooser.addItem(new Float(12));
    fontSizeChooser.addItem(new Float(16));
    fontSizeChooser.addItem(new Float(20));
    fontSizeChooser.addItem(new Float(24));
    fontSizeChooser.setSelectedItem(new Float(fontSize));
    fontSizePanel.add(fontSizeChooser);
    choosers.add(fontSizePanel);

    JButton ok = new JButton("OK");
    ok.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
            accept = true;
            formatText.dispose();
            family = (String) fontFamilyChooser.getSelectedItem();
            fontSize = Float.parseFloat(fontSizeChooser.getSelectedItem().toString());
        }
    });

    JButton cancel = new JButton("Cancel");
    cancel.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
            formatText.dispose();
        }
    });

    JPanel buttons = new JPanel();
    buttons.add(ok);
    buttons.add(cancel);
    formatText.getContentPane().add(choosers, BorderLayout.CENTER);
    formatText.getContentPane().add(buttons, BorderLayout.SOUTH);
    formatText.pack();
    formatText.setVisible(true);

    MutableAttributeSet attr = null;
    if (editor != null && accept) {
        attr = new SimpleAttributeSet();
        StyleConstants.setFontFamily(attr, family);
        StyleConstants.setFontSize(attr, (int) fontSize);
        setCharacterAttributes(editor, attr, false);
    }

}

From source file:Main.java

private void initComponents() {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JTextPane textPane = new JTextPane();
    ((AbstractDocument) textPane.getDocument()).addDocumentListener(new DocumentListener() {
        @Override/*w  w w  .j av a2 s.com*/
        public void insertUpdate(final DocumentEvent de) {
            SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    try {
                        StyledDocument doc = (StyledDocument) de.getDocument();
                        int start = Utilities.getRowStart(textPane, Math.max(0, de.getOffset() - 1));
                        int end = Utilities.getWordStart(textPane, de.getOffset() + de.getLength());

                        String text = doc.getText(start, end - start);

                        for (String emoticon : imageTokens) {
                            int i = text.indexOf(emoticon);
                            while (i >= 0) {
                                final SimpleAttributeSet attrs = new SimpleAttributeSet(
                                        doc.getCharacterElement(start + i).getAttributes());
                                if (StyleConstants.getIcon(attrs) == null) {
                                    switch (emoticon) {
                                    case imageToken:
                                        StyleConstants.setIcon(attrs, anImage);
                                        break;
                                    }
                                    doc.remove(start + i, emoticon.length());
                                    doc.insertString(start + i, emoticon, attrs);
                                }
                                i = text.indexOf(emoticon, i + emoticon.length());
                            }
                        }
                    } catch (BadLocationException ex) {
                        ex.printStackTrace();
                    }
                }
            });
        }

        @Override
        public void removeUpdate(DocumentEvent e) {
        }

        @Override
        public void changedUpdate(DocumentEvent e) {
        }
    });

    JScrollPane scrollPane = new JScrollPane(textPane);
    scrollPane.setPreferredSize(new Dimension(300, 300));
    frame.add(scrollPane);
    frame.pack();
    frame.setVisible(true);
}

From source file:plugin.notes.gui.NotesView.java

/**
 *  Updates Editing buttons based on the location of the cursor
 *
 *@param  textPane  text pane to update buttons base on
 *@param  pos       current text position
 */// w w w .ja  v a2  s .c  o  m
private void updateButtons(JTextPane textPane, int pos) {
    StyledDocument doc = textPane.getStyledDocument();
    AttributeSet set = doc.getCharacterElement(pos - 1).getAttributes();
    AttributeSet set1 = doc.getCharacterElement(pos).getAttributes();

    if (StyleConstants.isBold(set) && StyleConstants.isBold(set1)) {
        highlightButton(boldButton);
    } else {
        stdButton(boldButton);
    }

    if (StyleConstants.isItalic(set) && StyleConstants.isItalic(set1)) {
        highlightButton(italicButton);
    } else {
        stdButton(italicButton);
    }

    if (StyleConstants.isUnderline(set) && StyleConstants.isUnderline(set1)) {
        highlightButton(underlineButton);
    } else {
        stdButton(underlineButton);
    }

    int align = StyleConstants.getAlignment(set);
    stdButton(leftJustifyButton);
    stdButton(rightJustifyButton);
    stdButton(centerJustifyButton);

    if (align == StyleConstants.ALIGN_LEFT) {
        highlightButton(leftJustifyButton);
    } else if (align == StyleConstants.ALIGN_RIGHT) {
        highlightButton(rightJustifyButton);
    } else if (align == StyleConstants.ALIGN_CENTER) {
        highlightButton(centerJustifyButton);
    }

    int fontSize = StyleConstants.getFontSize(set);

    for (int i = 0; i < sizeCB.getItemCount(); i++) {
        String value = (String) sizeCB.getItemAt(i);

        if (value.equals(Integer.toString(fontSize))) {
            sizeCB.setSelectedItem(value);

            break;
        }
    }
}

From source file:plugin.notes.gui.NotesView.java

private void handleBackspace() {
    // TODO: This sucks, clean it up
    Element elem;//from w  w w .ja va  2  s. c o m
    int pos = editor.getCaretPosition();
    StyledDocument htmlDoc = editor.getStyledDocument();

    try {
        if (pos > 0) {
            if ((editor.getSelectedText()) != null) {
                ExtendedHTMLEditorKit.delete(editor);
                return;
            }

            int sOffset = htmlDoc.getParagraphElement(pos).getStartOffset();

            if (sOffset == editor.getSelectionStart()) {

                if (ExtendedHTMLEditorKit
                        .checkParentsTag(htmlDoc.getParagraphElement(editor.getCaretPosition()), HTML.Tag.LI)) {
                    elem = ExtendedHTMLEditorKit
                            .getListItemParent(htmlDoc.getCharacterElement(editor.getCaretPosition()));
                    boolean content = false;
                    int so = elem.getStartOffset();
                    int eo = elem.getEndOffset();

                    if ((so + 1) < eo) {
                        char[] temp = editor.getText(so, eo - so).toCharArray();
                        for (char aTemp : temp) {
                            if (!Character.isWhitespace(aTemp)) {
                                content = true;
                            }
                        }
                    }

                    if (!content) {
                        elem.getParentElement();
                        ExtendedHTMLEditorKit.removeTag(editor, elem);
                        editor.setCaretPosition(sOffset - 1);
                        return;
                    }
                    editor.setCaretPosition(editor.getCaretPosition() - 1);
                    editor.moveCaretPosition(editor.getCaretPosition() - 2);
                    editor.replaceSelection("");
                    return;
                }
            }

            editor.replaceSelection("");
        }
    } catch (BadLocationException ble) {
        Logging.errorPrint(ble.getMessage(), ble);
    }
}