source: trunk/src/org/expeditee/items/Text.java@ 906

package org.expeditee.items;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GradientPaint;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.Point;
import java.awt.Polygon;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.Stroke;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.font.FontRenderContext;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextAttribute;
import java.awt.font.TextHitInfo;
import java.awt.font.TextLayout;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.io.File;

import java.text.AttributedString;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;

import org.expeditee.gui.AttributeValuePair;
import org.expeditee.gui.DisplayIO;
import org.expeditee.gui.Frame;
import org.expeditee.gui.FrameGraphics;
import org.expeditee.gui.FrameIO;
import org.expeditee.gui.FrameKeyboardActions;
import org.expeditee.gui.FrameMouseActions;
import org.expeditee.gui.FrameUtils;
import org.expeditee.gui.FreeItems;
import org.expeditee.items.MagneticConstraint.MagneticConstraints;
import org.expeditee.math.ExpediteeJEP;
import org.expeditee.settings.experimental.ExperimentalFeatures;
import org.nfunk.jep.Node;

/**
 * Represents text displayed on the screen, which may include multiple lines.
 * All standard text properties can be set (font, style, size).
 * 
 * @author jdm18
 * 
 */
public class Text extends Item {
        private static final int ADJUST_WIDTH_THRESHOLD = 200;

        public static String LINE_SEPARATOR = System.getProperty("line.separator");

        // public static char[] BULLETS = { '\u2219', '\u2218', '\u2217' };
        public static char[] BULLETS = { '\u25AA', '\u25AB', '\u2217' };

        private static char DEFAULT_BULLET = BULLETS[2];

        private static String DEFAULT_BULLET_STRING = DEFAULT_BULLET + " ";

        private String[] _processedText = null;

        public String[] getProcessedText() {
                return _processedText;
        }

        public void setProcessedText(String[] tokens) {
                _processedText = tokens;
        }

        public static final String FRAME_NAME_SEPARATOR = " on frame ";

        /**
         * The default font used to display text items if no font is specified.
         */
        public static final String DEFAULT_FONT = "Serif-Plain-18";

        public static final Color DEFAULT_COLOR = Color.BLACK;

        public static final int MINIMUM_RANGED_CHARS = 2;

        public static final int NONE = 0;

        public static final int UP = 1;

        public static final int DOWN = 2;

        public static final int LEFT = 3;

        public static final int RIGHT = 4;

        public static final int HOME = 5;

        public static final int LINE_HOME = 9;

        public static final int LINE_END = 10;

        public static final int END = 6;

        public static final int PAGE_DOWN = 7;

        public static final int PAGE_UP = 8;

        /*
         * Set the width to be IMPLICIT, but as wide as possible, a negative width
         * value is one that is implicitly set by the system... a positive value is
         * one explicitly set by the user.
         */
        private Integer _maxWidth = Integer.MIN_VALUE + 1;

        private Justification _justification = Justification.left;

        private float _spacing = -1;

        private int _word_spacing = -1;

        private float _initial_spacing = 0;

        private float _letter_spacing = 0;

        // used during ranging out
        private int _selectionStart = -1;

        private int _selectionEnd = -1;
        
        // whether autowrap is on/off for this item
        protected boolean _autoWrap = false;

        // text is broken up into lines
        private StringBuffer _text = new StringBuffer();

        private List<TextLayout> _textLayouts = new LinkedList<TextLayout>();

        private List<Integer> _lineOffsets = new LinkedList<Integer>();

        private FontRenderContext frc = null;
        private LineBreakMeasurer _lineBreaker = null;

        // The font to display this text in
        private Font _font;
        
        
        protected static void InitFontFamily(GraphicsEnvironment ge, File fontFamilyDir)
        {
                File[] fontFiles = fontFamilyDir.listFiles();

                for (File fontFile : fontFiles) {
                        String ext = "";
                        String fileName = fontFile.getName().toLowerCase();

                        int i = fileName.lastIndexOf('.');
                        int p = Math.max(fileName.lastIndexOf('/'), fileName.lastIndexOf('\\'));

                        if (i > p) {
                                ext = fileName.substring(i+1);
                        }

                        if (ext.equals("ttf")) {

                                try {
                                        Font font = Font.createFont(Font.TRUETYPE_FONT, fontFile);

                                        ge.registerFont(font);
                                }
                                catch (Exception e) {
                                        System.err.println("Failed to load custon font file: " + fontFile);
                                }
                        }
                }
        }
        
        public static void InitFonts() {
                
                GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();

                if (ge != null) {

                        File fontDirectory = new File(FrameIO.FONT_PATH);
                        if (fontDirectory != null) {
                                File[] fontFamilyDirs = fontDirectory.listFiles();
                                if (fontFamilyDirs != null) {

                                        if (fontFamilyDirs.length>0) {
                                                System.out.println("Loading custom fonts:");
                                        }

                                        boolean first_item = true;              
                                        for (File fontFamilyDir : fontFamilyDirs) {
                                                if (fontFamilyDir.isDirectory()) {

                                                        if (first_item) {
                                                                System.out.print("  " + fontFamilyDir.getName());
                                                                first_item = false;
                                                        }
                                                        else {
                                                                System.out.print(", " + fontFamilyDir.getName());
                                                        }
                                                        System.out.flush();

                                                        InitFontFamily(ge,fontFamilyDir);
                                                }
                                        }
                                        System.out.println();     
                                }
                        }
                }
                else {
                        System.err.println("No graphics environment detected.  Skipping the loading of the custom fonts");
                }
        }

        

        /**
         * Creates a new Text Item with the given ID and text.
         * 
         * @param id
         *            The id of this item
         * @param text
         *            The text to use in this item
         */
        public Text(int id, String text) {
                super();
                _text.append(text);
                rebuild(false);

                setID(id);
        }

        /**
         * Creates a text item which is not added to the frame.
         * 
         * @param text
         */
        public Text(String text) {
                super();
                _text.append(text);
                rebuild(false);
                setID(-1);
        }

        /**
         * Creates a new Text Item with the given ID
         * 
         * @param id
         *            The ID to of this item
         */
        public Text(int id) {
                super();
                setID(id);
        }

        public Text(int i, String string, Color foreground, Color background) {
                this(i, string);
                this.setColor(foreground);
                this.setBackgroundColor(background);
        }

        /**
         * Sets the maximum width of this Text item when justifcation is used.
         * passing in 0 or -1 means there is no maximum width
         * 
         * @param width
         *            The maximum width of this item when justification is applied
         *            to it.
         */
        @Override
        public void setWidth(Integer width) {
                invalidateAll();

                if (width == null) {
                        setJustification(Justification.left);
                        setRightMargin(FrameGraphics.getMaxFrameSize().width, false);
                        return;
                }

                _maxWidth = width;
                rebuild(true);
                invalidateAll();
        }

        /**
         * Returns the maximum width of this Text item when justifcation is used. If
         * the width is negative, it means no explicit width has been set
         * 
         * @return The maximum width of this Text item when justification is used
         */
        @Override
        public Integer getWidth() {
                if (_maxWidth == null || _maxWidth <= 0)
                        return null;
                return _maxWidth;
        }

        public Integer getAbsoluteWidth() {
                if (_maxWidth == null) {
                        return Integer.MAX_VALUE;
                }

                return Math.abs(_maxWidth);
        }

        @Override
        public Color getHighlightColor() {
                if (_highlightColor.equals(getPaintBackgroundColor()))
                        return ALTERNATE_HIGHLIGHT;
                return _highlightColor;
        }

        /**
         * Sets the justification of this Text item. The given integer should
         * correspond to one of the JUSTIFICATION constants defined in Item
         * 
         * @param just
         *            The justification to apply to this Text item
         */
        public void setJustification(Justification just) {
                invalidateAll();

                // Only justification left works with 0 width
                // if (just != null && just != Justification.left && !hasWidth()) {
                // // TODO Tighten this up so it subtracts the margin widths
                // setWidth(getBoundsWidth());
                // }

                _justification = just;
                rebuild(true);
                invalidateAll();
        }

        /**
         * Returns the current justification of this Text item. The default value
         * left justification.
         * 
         * @return The justification of this Text item
         */
        public Justification getJustification() {
                if (_justification == null || _justification.equals(Justification.left))
                        return null;
                return _justification;
        }

        private int getJustOffset(TextLayout layout) {
                if (getJustification() == Justification.center)
                        return (int) ((getAbsoluteWidth() - layout.getAdvance()) / 2);
                else if (getJustification() == Justification.right)
                        return (int) (getAbsoluteWidth() - layout.getAdvance());

                return 0;
        }

        /**
         * Sets the text displayed on the screen to the given String. It does not
         * reset the formula, attributeValuePair or other cached values.
         * 
         * @param text
         *            The String to display on the screen when drawing this Item.
         */
        @Override
        public void setText(String text) {
                setText(text, false);
        }

        public void setText(String text, Boolean clearCache) {
                // if (_text != null && text.length() < _text.length())
                invalidateAll();
                _text = new StringBuffer(text);

                /*
                 * Always clearingCach remove formulas when moving in and out of XRay
                 * mode
                 */
                if (clearCache) {
                        clearCache();
                }

                rebuild(true);
                invalidateAll();
        }

        public void setTextList(List<String> text) {
                if (text == null || text.size() <= 0)
                        return;

                invalidateAll();

                StringBuffer sb = new StringBuffer();

                for (int i = 0; i < text.size(); i++) {
                        sb.append(text.get(i)).append('\n');
                }

                if (sb.length() > 0)
                        sb.deleteCharAt(sb.length() - 1);

                setText(sb.toString());

                rebuild(true);
                invalidateAll();
        }

        public void setAttributeValue(String value) {
                AttributeValuePair avp = new AttributeValuePair(getText(), false);
                avp.setValue(value);
                setText(avp.toString());
        }

        /**
         * Inserts the given String at the start of the first line of this Text
         * Item.
         * 
         * @param text
         *            The String to insert.
         */
        public void prependText(String text) {

                _text.insert(0, text);
                rebuild(false);
        }

        /**
         * If the first line of text starts with the given String, then it is
         * removed otherwise no action is taken.
         * 
         * @param text
         *            The String to remove from the first line of Text
         */
        public void removeText(String text) {
                if (_text.length() > 0 && _text.indexOf(text) == 0) {
                        // Need the invalidate all for dateStamp toggling
                        invalidateAll();
                        _text.delete(0, text.length());
                }

        }

        public void removeEndText(String textToRemove) {
                int length = _text.length();
                if (length > 0) {
                        // invalidateAll();
                        int pos = _text.indexOf(textToRemove);
                        int textToRemoveLength = textToRemove.length();
                        if (pos + textToRemoveLength == length) {
                                _text.delete(pos, length);
                        }
                }

        }

        /**
         * Appends the given String to any text already present in this Item
         * 
         * @param text
         *            The String to append.
         */
        public void appendText(String text) {
                _text.append(text);
                rebuild(false);
        }

        /**
         * Used by the frame reader to construct multi-line text items. It must run
         * quickly, so that the system still responds well for long text items.
         * 
         * @param text
         */
        public void appendLine(String text) {
                if (text == null)
                        text = "";

                if (_text.length() > 0)
                        _text.append('\n');

                _text.append(text);
                
                rebuild(true);
        }

        /**
         * Tests if the first line of this Text starts with the given String.
         * 
         * @param text
         *            The prefix to check for
         * @return True if the first line starts with the given String, False
         *         otherwise.
         */
        public boolean startsWith(String text) {
                return startsWith(text, true);
        }

        public boolean startsWith(String text, boolean ignoreCase) {
                if (text == null || _text == null || _text.length() < 1)
                        return false;

                if (ignoreCase)
                        return _text.toString().toLowerCase()
                                        .startsWith(text.toLowerCase());
                else
                        return _text.indexOf(text) == 0;
        }

        /**
         * Inserts a character into the Text of this Item.
         * 
         * @param ch
         *            The character insert.
         * @param mouseX
         *            The X position to insert the Strings at.
         * @param mouseY
         *            The Y position to insert the Strings at.
         */
        public Point2D.Float insertChar(char ch, float mouseX, float mouseY) {
                if (ch != '\t') /* && ch != '\n' */
                        return insertText("" + ch, mouseX, mouseY);

                return insertText(" " + ch, mouseX, mouseY);
        }

        /**
         * @param index
         * @return
         */
        private char getNextBullet(char bullet) {
                for (int i = 0; i < BULLETS.length - 1; i++) {
                        if (BULLETS[i] == bullet)
                                return BULLETS[i + 1];
                }
                return BULLETS[0];
        }

        private char getPreviousBullet(char bullet) {
                for (int i = 1; i < BULLETS.length; i++) {
                        if (BULLETS[i] == bullet)
                                return BULLETS[i - 1];
                }
                return BULLETS[BULLETS.length - 1];
        }

        public Point2D.Float getLineEndPosition(float mouseY) {
                return getEdgePosition(getLinePosition(mouseY), false);
        }

        public Point2D.Float getLineStartPosition(float mouseY) {
                return getEdgePosition(getLinePosition(mouseY), true);
        }

        public Point2D.Float getParagraphEndPosition() {
                return getEdgePosition(_textLayouts.size() - 1, false);
        }

        public Point2D.Float getParagraphStartPosition() {
                return getEdgePosition(0, true);
        }

        private Point2D.Float getEdgePosition(int line, boolean start) {
                // if there is no text yet, or the line is invalid
                if (_text == null || _text.length() == 0 || line < 0
                                || line > _textLayouts.size() - 1)
                        return new Point2D.Float(getX(), getY());

                TextLayout last = _textLayouts.get(line);
                TextHitInfo hit;
                if (start)
                        hit = last.getNextLeftHit(1);
                else
                        hit = last.getNextRightHit(last.getCharacterCount() - 1);

                // move the cursor to the new location
                float[] caret = last.getCaretInfo(hit);
                float y = getLineDrop(last) * line;

                float x = getX() + caret[0] + getJustOffset(last);
                x = Math
                                .min(
                                                x,
                                                (getX() - Item.MARGIN_RIGHT - (2 * getGravity()) + getBoundsWidth()));
                return new Point2D.Float(x, getY() + y + caret[1]);
        }

        public void setSelectionStart(float mouseX, float mouseY) {
                // determine what line is being pointed to
                int line = getLinePosition(mouseY);

                // get the character being pointed to
                TextHitInfo hit = getCharPosition(line, mouseX);
                _selectionStart = hit.getInsertionIndex() + _lineOffsets.get(line);
                invalidateAll();
        }

        public void setSelectionEnd(float mouseX, float mouseY) {
                // determine what line is being pointed to
                int line = getLinePosition(mouseY);

                // get the character being pointed to
                TextHitInfo hit = getCharPosition(line, mouseX);
                _selectionEnd = hit.getInsertionIndex() + _lineOffsets.get(line);
                invalidateAll();
        }

        public void clearSelection() {
                _selectionStart = -1;
                _selectionEnd = -1;
                invalidateAll();
        }

        public void clearSelectionEnd() {
                _selectionEnd = -1;
                invalidateAll();
        }

        public String copySelectedText() {
                if (_selectionStart < 0 || _selectionEnd < 0)
                        return null;
                else if (_selectionEnd > _text.length())
                        _selectionEnd = _text.length();

                return _text.substring(Math.min(_selectionStart, _selectionEnd), Math
                                .max(_selectionStart, _selectionEnd));
        }

        public String cutSelectedText() {
                return replaceSelectedText("");
        }

        public String replaceSelectedText(String newText) {
                if (_selectionStart < 0 || _selectionEnd < 0)
                        return null;

                invalidateAll();

                if (_selectionEnd > _text.length())
                        _selectionEnd = _text.length();

                int left = Math.min(_selectionStart, _selectionEnd);
                int right = Math.max(_selectionStart, _selectionEnd);

                // Trim the text to remove new lines on the beginning and end of the
                // string
                if (_text.charAt(left) == '\n') {
                        // if the entire line is being removed then remove one of the new
                        // lines, the first case checks if the last line is being removed
                        if (right >= _text.length() || _text.charAt(right) == '\n') {
                                _text.deleteCharAt(left);
                                right--;
                        } else {
                                left++;
                        }
                }
                // New lines are always at the start of the line for now...
                // if(_text.charAt(right - 1) == '\n' && left < right){
                // right--;
                // }
                String s = _text.substring(left, right);

                _text.delete(left, right);
                _text.insert(left, newText);
                rebuild(true);

                clearCache();

                invalidateAll();

                return s;
        }

        public int getSelectionSize() {
                if (_selectionEnd < 0 || _selectionStart < 0)
                        return 0;

                // System.out.println(_selectionStart + ":" + _selectionEnd);

                return Math.abs(_selectionEnd - _selectionStart);
        }

        /**
         * Inserts the given String into the Text at the position given by the
         * mouseX and mouseY coordinates
         * 
         * @param text
         *            The String to insert into this Text.
         * @param mouseX
         *            The X position to insert the String
         * @param mouseY
         *            The Y position to insert the String
         * @return The new location that the mouse cursor should be moved to
         */
        public Point2D.Float insertText(String text, float mouseX, float mouseY) {
                final Point2D.Float newPos = insertText(text, mouseX, mouseY, -1);
                return newPos;
        }

        public Point2D.Float insertText(String text, float mouseX, float mouseY,
                        int insertPos) {
                TextHitInfo hit;
                TextLayout current = null;
                int line;

                invalidateAll();

                // check for empty string
                if (text == null || text.length() == 0)
                        return new Point2D.Float(mouseX, mouseY);

                // if there is no text yet
                if (_text == null || _text.length() == 0) {
                        _text = new StringBuffer().append(text);
                        // create the linebreaker and layouts
                        rebuild(true);
                        assert (_textLayouts.size() == 1);
                        current = _textLayouts.get(0);
                        hit = current.getNextRightHit(0);
                        line = 0;

                        // otherwise, we are inserting text
                } else {
                        clearCache();
                        // determine what line is being pointed to
                        line = getLinePosition(mouseY);

                        // get the character being pointed to
                        hit = getCharPosition(line, mouseX);

                        int pos = hit.getInsertionIndex() + _lineOffsets.get(line);

                        if (line > 0 && hit.getInsertionIndex() == 0) {
                                // Only move forward a char if the line begins with a hard line
                                // break... not a soft line break
                                if (_text.charAt(pos) == '\n') {
                                        pos++;
                                }
                        }

                        if (insertPos < 0)
                                insertPos = pos;

                        // if this is a backspace key
                        if (text.charAt(0) == KeyEvent.VK_BACK_SPACE) {
                                if (hasSelection()) {
                                        pos = deleteSelection(pos);
                                } else if (insertPos > 0) {
                                        deleteChar(insertPos - 1);
                                        if (pos > 0)
                                                pos--;
                                }
                                // if this is a delete key
                        } else if (text.charAt(0) == KeyEvent.VK_DELETE) {
                                if (hasSelection()) {
                                        pos = deleteSelection(pos);
                                } else if (insertPos < _text.length()) {
                                        deleteChar(insertPos);
                                }
                                // this is a tab
                        } else if (text.charAt(0) == KeyEvent.VK_TAB) {
                                // Text length greater than 1 signals a backwards tab
                                if (text.length() > 1) {
                                        // Find the first non space char to see if its a bullet
                                        int index = 0;
                                        for (index = 0; index < _text.length(); index++) {
                                                if (!Character.isSpaceChar(_text.charAt(index)))
                                                        break;
                                        }
                                        // Check if there is a space after the bullet
                                        if (index < _text.length() - 1
                                                        && _text.charAt(index + 1) == ' ') {
                                                // Change the bullet
                                                _text.setCharAt(index, getPreviousBullet(_text
                                                                .charAt(index)));
                                        }
                                        // Remove the spacing at the start
                                        for (int i = 0; i < TAB_STRING.length(); i++) {
                                                if (_text.length() > 0
                                                                && Character.isSpaceChar(_text.charAt(0))) {
                                                        deleteChar(0);
                                                        pos--;
                                                } else
                                                        break;
                                        }
                                        _lineBreaker = null;
                                } else {
                                        // / Find the first non space char to see if its a bullet
                                        int index = 0;
                                        for (index = 0; index < _text.length(); index++) {
                                                if (!Character.isSpaceChar(_text.charAt(index)))
                                                        break;
                                        }
                                        // Check if there is a space after the bullet
                                        if (index < _text.length() - 1
                                                        && _text.charAt(index + 1) == ' ') {
                                                char nextBullet = getNextBullet(_text.charAt(index));
                                                // Change the bullet
                                                _text.setCharAt(index, nextBullet);
                                        }
                                        // Insert the spacing at the start
                                        insertString(TAB_STRING, 0);
                                        pos += TAB_STRING.length();
                                }
                                // this is a normal insert
                        } else {
                                insertString(text, insertPos);
                                pos += text.length();
                        }

                        if (_text.length() == 0) {
                                rebuild(false);
                                return new Point2D.Float(this._x, this._y);
                        }

                        int newLine = line;

                        // if a rebuild is required
                        rebuild(true, false);

                        // determine the new position the cursor should have
                        for (int i = 1; i < _lineOffsets.size(); i++) {
                                if (_lineOffsets.get(i) >= pos) {
                                        newLine = i - 1;
                                        break;
                                }
                        }

                        current = _textLayouts.get(newLine);
                        pos -= _lineOffsets.get(newLine);

                        if (newLine == line) {
                                if (pos > 0)
                                        hit = current.getNextRightHit(pos - 1);
                                else
                                        hit = current.getNextLeftHit(1);
                        } else if (newLine < line) {
                                hit = current.getNextRightHit(pos - 1);
                        } else {
                                hit = current.getNextRightHit(pos - 1);
                        }

                        line = newLine;
                }

                // move the cursor to the new location
                float[] caret = current.getCaretInfo(hit);
                float y = getLineDrop(current) * line;

                float x = getX() + caret[0] + getJustOffset(current);
                x = Math
                                .min(
                                                x,
                                                (getX() - Item.MARGIN_RIGHT - (2 * getGravity()) + getBoundsWidth()));

                invalidateAll();

                return new Point2D.Float(Math.round(x), Math.round(getY() + y
                                + caret[1]));
        }

        /**
         * 
         */
        private void clearCache() {
                _attributeValuePair = null;
                setProcessedText(null);
                setFormula(null);
        }

        /**
         * @param pos
         * @return
         */
        private int deleteSelection(int pos) {
                int selectionLength = getSelectionSize();
                cutSelectedText();
                clearSelection();
                pos -= selectionLength;
                return pos;
        }

        public Point2D.Float moveCursor(int direction, float mouseX, float mouseY,
                        boolean setSelection, boolean wholeWord) {
                if (setSelection) {
                        if (!hasSelection()) {
                                setSelectionStart(mouseX, mouseY);
                        }
                } else {
                        // clearSelection();
                }

                Point2D.Float resultPos = null;

                // check for home or end keys
                switch (direction) {
                case HOME:
                        resultPos = getParagraphStartPosition();
                        break;
                case END:
                        resultPos = getParagraphEndPosition();
                        break;
                case LINE_HOME:
                        resultPos = getLineStartPosition(mouseY);
                        break;
                case LINE_END:
                        resultPos = getLineEndPosition(mouseY);
                        break;
                default:
                        TextHitInfo hit;
                        TextLayout current;
                        int line;

                        // if there is no text yet
                        if (_text == null || _text.length() == 0) {
                                return new Point2D.Float(mouseX, mouseY);
                                // otherwise, move the cursor
                        } else {
                                // determine the line of text to check
                                line = getLinePosition(mouseY);
                                if (line < 0)
                                        line = _textLayouts.size() - 1;

                                // if the cursor is moving up or down, change the line
                                if (direction == UP)
                                        line = Math.max(line - 1, 0);
                                else if (direction == DOWN)
                                        line = Math.min(line + 1, _textLayouts.size() - 1);

                                hit = getCharPosition(line, mouseX);

                                if (direction == LEFT) {
                                        if (hit.getInsertionIndex() > 0) {

                                                char prevChar = ' ';
                                                do {
                                                        hit = _textLayouts.get(line).getNextLeftHit(hit);

                                                        // Stop if at the start of the line
                                                        if (hit.getInsertionIndex() == 0)
                                                                break;
                                                        // Keep going if the char to the left is a
                                                        // letterOrDigit
                                                        prevChar = _text.charAt(hit.getInsertionIndex() - 1
                                                                        + _lineOffsets.get(line));
                                                } while (wholeWord
                                                                && Character.isLetterOrDigit(prevChar));
                                                // TODO Go to the start of the word instead of before
                                                // the word
                                                char nextChar = _text.charAt(hit.getInsertionIndex()
                                                                + _lineOffsets.get(line));
                                                /*
                                                 * This takes care of hard line break in
                                                 */
                                                if (line > 0 && nextChar == '\n') {
                                                        line--;
                                                        hit = _textLayouts.get(line)
                                                                        .getNextRightHit(
                                                                                        _textLayouts.get(line)
                                                                                                        .getCharacterCount() - 1);
                                                }
                                                // This takes care of soft line breaks.
                                        } else if (line > 0) {
                                                line--;
                                                hit = _textLayouts.get(line).getNextRightHit(
                                                                _textLayouts.get(line).getCharacterCount() - 1);
                                                /*
                                                 * Skip the spaces at the end of a line with soft
                                                 * linebreak
                                                 */
                                                while (hit.getCharIndex() > 0
                                                                && _text.charAt(_lineOffsets.get(line)
                                                                                + hit.getCharIndex() - 1) == ' ') {
                                                        hit = _textLayouts.get(line).getNextLeftHit(hit);
                                                }
                                        }
                                } else if (direction == RIGHT) {
                                        if (hit.getInsertionIndex() < _textLayouts.get(line)
                                                        .getCharacterCount()) {
                                                hit = _textLayouts.get(line).getNextRightHit(hit);
                                                // Skip whole word if needs be
                                                while (wholeWord
                                                                && hit.getCharIndex() > 0
                                                                && hit.getCharIndex() < _textLayouts.get(line)
                                                                                .getCharacterCount()
                                                                && Character.isLetterOrDigit(_text
                                                                                .charAt(_lineOffsets.get(line)
                                                                                                + hit.getCharIndex() - 1)))
                                                        hit = _textLayouts.get(line).getNextRightHit(hit);
                                        } else if (line < _textLayouts.size() - 1) {
                                                line++;
                                                hit = _textLayouts.get(line).getNextLeftHit(1);
                                        }
                                }
                                current = _textLayouts.get(line);
                        }

                        // move the cursor to the new location
                        float[] caret = current.getCaretInfo(hit);
                        float y = getLineDrop(current) * line;

                        resultPos = new Point2D.Float(getX() + caret[0]
                                        + getJustOffset(current), getY() + y + caret[1]);
                        break;
                }
                if (setSelection)
                        setSelectionEnd(resultPos.x, resultPos.y);
                return resultPos;
        }

        /**
         * Iterates through the given line string and returns the position of the
         * character being pointed at by the mouse.
         * 
         * @param line
         *            The index of the _text array of the String to be searched.
         * @param mouseX
         *            The X coordinate of the mouse
         * @return The position in the string of the character being pointed at.
         */
        public TextHitInfo getCharPosition(int line, float mouseX) {
                if (line < 0 || line >= _textLayouts.size())
                        return null;

                TextLayout layout = _textLayouts.get(line);
                mouseX += getOffset().x;
                mouseX -= getJustOffset(layout);

                return layout.hitTestChar(mouseX - getX(), 0);
        }

        public int getLinePosition(float mouseY) {
                mouseY += getOffset().y;

                float y = getY();

                for (TextLayout text : _textLayouts) {
                        // calculate X to ensure it is in the shape
                        Rectangle2D bounds = text.getLogicalHighlightShape(0,
                                        text.getCharacterCount()).getBounds2D();

                        if (bounds.getWidth() < 1)
                                bounds.setRect(bounds.getMinX(), bounds.getMinY(), 10, bounds
                                                .getHeight());

                        double x = bounds.getCenterX();

                        if (bounds.contains(x, mouseY - getY() - (y - getY())))
                                return _textLayouts.indexOf(text);

                        // check if the cursor is between lines
                        if (mouseY - getY() - (y - getY()) < bounds.getMinY())
                                return Math.max(0, _textLayouts.indexOf(text) - 1);

                        y += getLineDrop(text);
                }

                return _textLayouts.size() - 1;
        }

        /**
         * Sets the Font that this text will be displayed with on the screen.
         * 
         * @param font
         *            The Font to display the Text of this Item in.
         */
        public void setFont(Font font) {
                invalidateAll();
                // all decoding occurs in the Utils class
                _font = font;
                // rejustify();
                rebuild(false);

                invalidateAll();
        }

        /**
         * Returns the Font that this Text is currently using when painting to the
         * screen
         * 
         * @return The Font used to display this Text on the screen.
         */
        public Font getFont() {
                return _font;
        }

        public Font getPaintFont() {
                if (getFont() == null)
                        return Font.decode(DEFAULT_FONT);

                return getFont();
        }

        public String getFamily() {
                return getPaintFont().getFamily();
        }

        public void setFamily(String newFamily) {
                String toDecode = newFamily + "-" + getFontStyle() + "-"
                                + Math.round(getSize());
                setFont(Font.decode(toDecode));
                
                setLetterSpacing(this._letter_spacing);
        }

        public String getFontStyle() {
                Font f = getPaintFont();
                String s = "";

                if (f.isPlain())
                        s += "Plain";

                if (f.isBold())
                        s += "Bold";

                if (f.isItalic())
                        s += "Italic";

                return s;
        }

        public static final String MONOSPACED_FONT = "monospaced";

        public static final String[] FONT_WHEEL = { "sansserif", "monospaced",
                        "serif", "dialog", "dialoginput" };

        public static final char[] FONT_CHARS = { 's', 'm', 't', 'd', 'i' };

        private static final int NEARBY_GRAVITY = 2;

        public static final int MINIMUM_FONT_SIZE = 6;

        public void toggleFontFamily() {
                String fontFamily = getFamily().toLowerCase();
                // set it to the first font by default
                setFamily(FONT_WHEEL[0]);

                for (int i = 0; i < FONT_WHEEL.length - 3; i++) {
                        if (fontFamily.equals(FONT_WHEEL[i])) {
                                setFamily(FONT_WHEEL[i + 1]);
                                break;
                        }
                }
        }

        public void toggleFontStyle() {
                invalidateAll();
                Font currentFont = getPaintFont();
                if (currentFont.isPlain())
                        setFont(currentFont.deriveFont(Font.BOLD));
                else if (currentFont.isBold() && currentFont.isItalic())
                        setFont(currentFont.deriveFont(Font.PLAIN));
                else if (currentFont.isBold())
                        setFont(currentFont.deriveFont(Font.ITALIC));
                else
                        setFont(currentFont.deriveFont(Font.ITALIC + Font.BOLD));
                rebuild(true);
                invalidateAll();
        }

        public void toggleBold() {
                invalidateAll();
                Font currentFont = getPaintFont();
                int newStyle = currentFont.getStyle();
                if (currentFont.isBold()) {
                        newStyle -= Font.BOLD;
                } else {
                        newStyle += Font.BOLD;
                }
                setFont(currentFont.deriveFont(newStyle));
                rebuild(true);
                invalidateAll();
        }

        public void toggleItalics() {
                invalidateAll();
                Font currentFont = getPaintFont();
                int newStyle = currentFont.getStyle();
                if (currentFont.isItalic()) {
                        newStyle -= Font.ITALIC;
                } else {
                        newStyle += Font.ITALIC;
                }
                setFont(currentFont.deriveFont(newStyle));
                rebuild(true);
                invalidateAll();
        }

        public void setFontStyle(String newFace) {
                if (newFace == null || newFace.trim().length() == 0) {
                        setFont(getPaintFont().deriveFont(Font.PLAIN));
                        return;
                }

                newFace = newFace.toLowerCase().trim();

                if (newFace.equals("plain") || newFace.equals("p")) {
                        setFont(getPaintFont().deriveFont(Font.PLAIN));
                } else if (newFace.equals("bold") || newFace.equals("b")) {
                        setFont(getPaintFont().deriveFont(Font.BOLD));
                } else if (newFace.equals("italic") || newFace.equals("i")) {
                        setFont(getPaintFont().deriveFont(Font.ITALIC));
                } else if (newFace.equals("bolditalic") || newFace.equals("italicbold")
                                || newFace.equals("bi") || newFace.equals("ib")) {
                        setFont(getPaintFont().deriveFont(Font.BOLD + Font.ITALIC));
                }

        }

        /**
         * Returns a String array of this Text object's text, split up into separate
         * lines.
         * 
         * @return The String array with one element per line of text in this Item.
         */
        public List<String> getTextList() {
                if (_text == null)
                        return null;
                try {
                        List<String> list = new LinkedList<String>();

                        // Rebuilding prevents errors when displaying frame bitmaps
                        if (_lineOffsets.size() == 0) {
                                rebuild(false);
                        }

                        int last = 0;
                        for (int offset : _lineOffsets) {
                                if (offset != last) {
                                        list
                                                        .add(_text.substring(last, offset).replaceAll("\n",
                                                                        ""));
                                }
                                last = offset;
                        }

                        return list;
                } catch (Exception e) {
                        System.out.println(e.getMessage());
                        return null;
                }
        }

        public String getText() {
                return _text.toString();
        }

        /**
         * Returns the first line of text in this Text Item
         * 
         * @return The first line of Text
         */
        public String getFirstLine() {
                if (_text == null || _text.length() == 0)
                        return null;

                // start at the first non-newLine char
                int index = 0;
                while (_text.charAt(index) == '\n') {
                        index++;
                }

                int nextNewLine = _text.indexOf("\n", index);

                /* If there are no more newLines return the remaining text */
                if (nextNewLine < 0)
                        return _text.substring(index);

                return _text.substring(index, nextNewLine);
        }

        /**
         * Sets the inter-line spacing (in pixels) of this text.
         * 
         * @param spacing
         *            The number of pixels to allow between each line
         */
        public void setSpacing(float spacing) {
                _spacing = spacing;
                updatePolygon();
        }

        /**
         * Returns the inter-line spacing (in pixels) of this Text.
         * 
         * @return The spacing (inter-line) in pixels of this Text.
         */
        public float getSpacing() {
                return _spacing;
        }

        private float getLineDrop(TextLayout layout) {
                if (getSpacing() < 0)
                        return layout.getAscent() + layout.getDescent()
                                        + layout.getLeading();

                return layout.getAscent() + layout.getDescent() + getSpacing();
        }

        public void setWordSpacing(int spacing) {
                _word_spacing = spacing;
        }

        public int getWordSpacing() {
                return _word_spacing;
        }

        /**
         * Sets the spacing (proportional to the font size) between letters
         * 
         * @param spacing
         *            Additional spacing to add between letters. See {@link java.awt.font.TextAttribute#TRACKING}
         */
        public void setLetterSpacing(float spacing) {
                _letter_spacing = spacing;
                HashMap<TextAttribute, Object> attr = new HashMap<TextAttribute, Object>();
                attr.put(TextAttribute.TRACKING, spacing);
                
                if (this._font == null) {
                        this._font = Font.decode(DEFAULT_FONT);
                }

                this.setFont(this._font.deriveFont(attr));
        }

        /**
         * @return The spacing (proportional to the font size) between letters. See {@link java.awt.font.TextAttribute#TRACKING}
         */
        public float getLetterSpacing() {
                return _letter_spacing;
        }

        public void setInitialSpacing(float spacing) {
                _initial_spacing = spacing;
        }

        public float getInitialSpacing() {
                return _initial_spacing;
        }

        @Override
        public boolean intersects(Polygon p) {
                if (super.intersects(p)) {
                        float textY = getY();

                        for (TextLayout text : _textLayouts) {
                                // check left and right of each box
                                Rectangle2D textOutline = text.getLogicalHighlightShape(0,
                                                text.getCharacterCount()).getBounds2D();
                                textOutline
                                                .setRect(textOutline.getX() + getX() - 1, textOutline
                                                                .getY()
                                                                + textY - 1, textOutline.getWidth() + 2,
                                                                textOutline.getHeight() + 2);
                                if (p.intersects(textOutline))
                                        return true;
                                textY += getLineDrop(text);
                        }
                }
                return false;
        }

        @Override
        public boolean contains(int mouseX, int mouseY) {
                return contains(mouseX, mouseY, getGravity() * NEARBY_GRAVITY);
        }

        public boolean contains(int mouseX, int mouseY, int gravity) {
                mouseX += getOffset().x;
                mouseY += getOffset().y;

                float textY = getY();
                float textX = getX();

                Rectangle2D outline = getPolygon().getBounds2D();

                // Check if its outside the top and left and bottom bounds
                if (outline.getX() - mouseX > gravity
                                || outline.getY() - mouseY > gravity
                                || mouseY - (outline.getY() + outline.getHeight()) > gravity
                                || mouseX - (outline.getX() + outline.getWidth()) > gravity) {
                        return false;
                }

                for (TextLayout text : _textLayouts) {
                        // check left and right of each box
                        Rectangle2D textOutline = text.getLogicalHighlightShape(0,
                                        text.getCharacterCount()).getBounds2D();

                        // check if the cursor is within the top, bottom and within the
                        // gravity of right
                        int justOffset = getJustOffset(text);

                        if (mouseY - textY > textOutline.getY()
                                        && mouseY - textY < textOutline.getY()
                                                        + textOutline.getHeight()
                                        && mouseX - textX - justOffset < textOutline.getWidth()
                                                        + gravity + Item.MARGIN_RIGHT
                        /* &&(justOffset == 0 || mouseX > textX + justOffset - gravity ) */)
                                return true;
                        textY += getLineDrop(text);
                }

                return false;
        }

        /**
         * Updates the Polygon (rectangle) that surrounds this Text on the screen.
         */
        public void updatePolygon() {
                // if there is no text, there is nothing to do
                if (_text == null)
                        return;

                int preChangeWidth = 0;
                if (_poly != null)
                        preChangeWidth = _poly.getBounds().width;

                _poly = new Polygon();

                if (_textLayouts.size() < 1)
                        return;

                int minX = Integer.MAX_VALUE;
                int maxX = Integer.MIN_VALUE;

                int minY = Integer.MAX_VALUE;
                int maxY = Integer.MIN_VALUE;

                float y = -1;
                
                // Fix concurrency error in ScaleFrameset
                List<TextLayout> tmpTextLayouts;
                synchronized(_textLayouts) {
                        tmpTextLayouts = new LinkedList<TextLayout>(_textLayouts);
                }

                for (TextLayout layout : tmpTextLayouts) {
                        Rectangle2D bounds = layout.getLogicalHighlightShape(0,
                                        layout.getCharacterCount()).getBounds2D();
                
                        if (y < 0)
                                y = 0;
                        else
                                y += getLineDrop(layout);

                        maxX = Math.max(maxX, (int) bounds.getMaxX());
                        minX = Math.min(minX, (int) bounds.getMinX());
                        maxY = Math.max(maxY, (int) (bounds.getMaxY() + y));
                        minY = Math.min(minY, (int) (bounds.getMinY() + y));
                }

                minX -= getLeftMargin();
                maxX += Item.MARGIN_RIGHT;

                // If its justification right or center then DONT limit the width
                if (getJustification() != null) {
                        maxX = Item.MARGIN_RIGHT + getAbsoluteWidth();
                }

                _poly.addPoint(minX - getGravity(), minY - getGravity());
                _poly.addPoint(maxX + getGravity(), minY - getGravity());
                _poly.addPoint(maxX + getGravity(), maxY + getGravity());
                _poly.addPoint(minX - getGravity(), maxY + getGravity());

                _poly.translate(getX(), getY());
                                                
                if(preChangeWidth != 0 && preChangeWidth != _poly.getBounds().width) 
                        if(_poly.getBounds().width > preChangeWidth) MagneticConstraints.getInstance().textGrown(this, _poly.getBounds().width - preChangeWidth);
                        else MagneticConstraints.getInstance().textShrunk(this, preChangeWidth - _poly.getBounds().width);
        }

        // TODO it seems like this method has some exponencial processing which
        // makes items copy really slowly when there are lots of lines of text!
        // This needs to be fixed!!
        public void rebuild(boolean limitWidth) {
                rebuild(limitWidth, true);
        }

        /**
         * 
         * @param limitWidth
         * @param newLinebreakerAlways
         *            true if a new line breaker should always be created.
         */
        private void rebuild(boolean limitWidth, boolean newLinebreakerAlways) {
                // TODO make this more efficient so it only clears annotation list when
                // it really has to
                if (isAnnotation()) {
                        Frame parent = getParent();
                        // parent can be null when running tests
                        if (parent != null) {
                                parent.clearAnnotations();
                        }
                }

                // if there is no text, there is nothing to do
                if (_text == null || _text.length() == 0) {
                        // Frame parent = getParent();
                        // if(parent != null)
                        // parent.removeItem(this);
                        return;
                }

                if (_lineBreaker == null || newLinebreakerAlways) {
                        AttributedString paragraphText = new AttributedString(_text
                                        .toString());
                        paragraphText.addAttribute(TextAttribute.FONT, getPaintFont());
                        frc = new FontRenderContext(null, true, true);
                        _lineBreaker = new LineBreakMeasurer(paragraphText.getIterator(), frc);
                }

                /* float width = Float.MAX_VALUE;

                if (limitWidth) {
                        width = getAbsoluteWidth();
                        // else if (getMaxWidth() > 0)
                        // width = Math.max(50, getMaxWidth() - getX()
                        // - Item.MARGIN_RIGHT);
                } */

                _textLayouts.clear();
                _lineOffsets.clear();
                // the first line always has a 0 offset
                _lineOffsets.add(0);

                TextLayout layout;
                
                float width;
                float lineHeight = Float.NaN;
                List<Point[]> lines = null;
                
                if(_autoWrap || ExperimentalFeatures.AutoWrap.get()) {
                lines = new LinkedList<Point[]>();
                if(DisplayIO.getCurrentFrame() == null) {
                        return;
                }
                for(Item item : DisplayIO.getCurrentFrame().getItems()) {
                                if(item instanceof Line) {
                                        lines.add(new Point[] { ((Line) item).getStartItem().getPosition(), ((Line) item).getEndItem().getPosition() });
                                }
                                if(item instanceof Picture) {
                                        lines.add(new Point[] { item.getPosition(), new Point(item.getX(), item.getY() + item.getHeight()) });
                                }
                }
                for(Item item : FreeItems.getInstance()) {
                                if(item instanceof Line) {
                                        lines.add(new Point[] { ((Line) item).getStartItem().getPosition(), ((Line) item).getEndItem().getPosition() });
                                }
                                if(item instanceof Picture) {
                                        lines.add(new Point[] { item.getPosition(), new Point(item.getX(), item.getY() + item.getHeight()) });
                                }
                }
                width = getLineWidth(getX(), getY(), lines);
                } else {
                        width = Float.MAX_VALUE;
                if (limitWidth) {
                        if(_maxWidth == null) {
                                width = FrameGraphics.getMaxFrameSize().width - getX();
                        } else {
                                width = getAbsoluteWidth();
                        }
                        // else if (getMaxWidth() > 0)
                        // width = Math.max(50, getMaxWidth() - getX()
                        // - Item.MARGIN_RIGHT);
                }
                }
                
                _lineBreaker.setPosition(0);
                boolean requireNextWord = false;

                // --- Get the output of the LineBreakMeasurer and store it in a
                while (_lineBreaker.getPosition() < _text.length()) {
                        
                        if(_autoWrap || ExperimentalFeatures.AutoWrap.get()) {
                                requireNextWord = width < FrameGraphics.getMaxFrameSize().width - getX();
                        }
                        
                        layout = _lineBreaker.nextLayout(width, _text.length(), requireNextWord);
                        
                        // lineBreaker does not break on newline
                        // characters so they have to be check manually
                        int start = _lineOffsets.get(_lineOffsets.size() - 1);
                        
                        // int y = getY() + (getLineDrop(layout) * (_lineOffsets.size() - 1) 
                        
                        // check through the current line for newline characters
                        for (int i = start + 1; i < _text.length(); i++) {
                                if (_text.charAt(i) == '\n') {// || c == '\t'){
                                        _lineBreaker.setPosition(start);
                                        layout = _lineBreaker.nextLayout(width, i, requireNextWord);
                                        break;
                                }
                        }

                        _lineOffsets.add(_lineBreaker.getPosition());
                        
                        if(layout == null) {
                                layout = new TextLayout(" ", getPaintFont(), frc);
                        }

                        if (/* hasWidth() && */getJustification() == Justification.full
                                        && _lineBreaker.getPosition() < _text.length())
                                layout = layout.getJustifiedLayout(width);
                        
                        _textLayouts.add(layout);
                                                
                        if(_autoWrap || ExperimentalFeatures.AutoWrap.get()) {
                                
                        if(lineHeight != Float.NaN) {
                                lineHeight = getLineDrop(layout);
                        }
                        width = getLineWidth(getX(), getY() + (lineHeight * (_textLayouts.size() - 1)), lines);
                        }
                }

                updatePolygon();

        }
        
        private float getLineWidth(int x, float y, List<Point[]> lines) {
                float width = FrameGraphics.getMaxFrameSize().width;
                for(Point[] l : lines) {
                        // check for lines that cross over our y
                        if((l[0].y >= y && l[1].y <= y) || (l[0].y <= y && l[1].y >= y)) {
                                float dX = l[0].x - l[1].x;
                                float dY = l[0].y - l[1].y;
                                float newWidth;
                                if(dX == 0) {
                                        newWidth = l[0].x;
                                } else if(dY == 0) {
                                        newWidth = Math.min(l[0].x, l[1].x);
                                } else {
                                        // System.out.print("gradient: " + (dY / dX));
                                        newWidth = l[0].x + (y - l[0].y) * dX / dY;
                                }
                                // System.out.println("dY:" + dY + " dX:" + dX + " width:" + newWidth);
                                if(newWidth < x) {
                                        continue;
                                }
                                if(newWidth < width) {
                                        width = newWidth;
                                }
                        }
                }
                return width - x;
        }

        private boolean hasFixedWidth() {
                assert (_maxWidth != null);
                if (_maxWidth == null) {
                        justify(false);
                }
                return _maxWidth > 0;
        }

        private int _alpha = -1;

        public void setAlpha(int alpha) {
                _alpha = alpha;
        }

        private Point getSelectedRange(int line) {
                if (_selectionEnd >= _text.length()) {
                        _selectionEnd = _text.length();
                }

                if (_selectionStart < 0)
                        _selectionStart = 0;

                if (_selectionStart < 0 || _selectionEnd < 0)
                        return null;

                int selectionLeft = Math.min(_selectionStart, _selectionEnd);
                int selectionRight = Math.max(_selectionStart, _selectionEnd);

                // if the selection is after this line, return null
                if (_lineOffsets.get(line) > selectionRight)
                        return null;

                // if the selection is before this line, return null
                if (_lineOffsets.get(line) < selectionLeft
                                && _lineOffsets.get(line)
                                                + _textLayouts.get(line).getCharacterCount() < selectionLeft)
                        return null;

                // Dont highlight a single char
                // if (selectionRight - selectionLeft <= MINIMUM_RANGED_CHARS)
                // return null;

                // the selection occurs on this line, determine where it lies on the
                // line
                int start = Math.max(0, selectionLeft - _lineOffsets.get(line));
                // int end = Math.min(_lineOffsets.get(line) +
                // _textLayouts.get(line).getCharacterCount(), _selectionEnd);
                int end = Math.min(selectionRight - _lineOffsets.get(line),
                                +_textLayouts.get(line).getCharacterCount());

                // System.out.println(line + ": " + start + "x" + end + " (" +
                // _selectionStart + "x" + _selectionEnd + ")");
                return new Point(start, end);
        }

        /**
         * @param mouseButton
         *            Either MouseEvent.BUTTON1, MouseEvent.BUTTON2 or
         *            MouseEvent.BUTTON3.
         * 
         * @return The color for the text selection based on the given mouse click
         */
        protected Color getSelectionColor(int mouseButton) {

                /*
                 * Color main = getPaintColor(); Color back = getPaintBackgroundColor();
                 * 
                 * if (Math.abs(main.getRed() - back.getRed()) < 10 &&
                 * Math.abs(main.getGreen() - back.getGreen()) < 10 &&
                 * Math.abs(main.getBlue() - back.getBlue()) < 10) { selection = new
                 * Color(Math.abs(255 - main.getRed()), Math .abs(255 -
                 * main.getGreen()), Math.abs(255 - main.getBlue())); } else { selection =
                 * new Color((main.getRed() + (back.getRed() * 2)) / 3, (main.getGreen() +
                 * (back.getGreen() * 2)) / 3, (main .getBlue() + (back.getBlue() * 2)) /
                 * 3); }
                 */
                int green = 160;
                int red = 160;
                int blue = 160;

                if (FrameMouseActions.wasDeleteClicked()) {
                        green = 235;
                        red = 235;
                        blue = 140;
                } else if (mouseButton == MouseEvent.BUTTON1) {
                        red = 255;
                } else if (mouseButton == MouseEvent.BUTTON2) {
                        green = 255;
                } else if (mouseButton == MouseEvent.BUTTON3) {
                        blue = 255;
                }

                return new Color(red, green, blue);
        }

        @Override
        public void paint(Graphics2D g) {
                if (!isVisible())
                        return;

                // if there is no text to paint, do nothing.
                if (_text == null || _text.length() == 0)
                        return;
                
                if(_autoWrap || ExperimentalFeatures.AutoWrap.get()) {
                        invalidateAll();
                
                        rebuild(true);
                } else if (_textLayouts.size() < 1) {
                        clipFrameMargin();
                        rebuild(true);
                        // return;
                }

                // check if its a vector item and paint all the vector stuff too if this
                // item is a free item
                // This will allow for dragging vectors around the place!
                if (hasVector() && isFloating()) {
                        FrameGraphics.requestRefresh(false);
                        // TODO make this use a more efficient paint method...
                        // Have the text item return a bigger repaint area if it has an
                        // associated vector
                }

                // the background is only cleared if required
                if (getBackgroundColor() != null) {
                        Color bgc = getBackgroundColor();
                        if (_alpha > 0) {
                                bgc = new Color(bgc.getRed(), bgc.getGreen(), bgc.getBlue(),
                                                _alpha);
                        }
                        g.setColor(bgc);

                        Color gradientColor = getGradientColor();
                        if (gradientColor != null) {
                                // The painting is not efficient enough for gradients...
                                Shape s = getPolygon();
                                if (s != null) {
                                        Rectangle b = s.getBounds();
                                        GradientPaint gp = new GradientPaint(
                                                        (int) (b.x + b.width * 0.3), b.y, bgc,
                                                        (int) (b.x + b.width * 1.3), b.y, gradientColor);
                                        g.setPaint(gp);
                                }
                        }

                        g.fillPolygon(getPolygon());
                }

                if (hasVisibleBorder()) {
                        g.setColor(getPaintBorderColor());
                        Stroke borderStroke = new BasicStroke(getThickness(), CAP, JOIN);
                        g.setStroke(borderStroke);
                        g.drawPolygon(getPolygon());
                }

                if (hasFormula()) {
                        g.setColor(getPaintHighlightColor());
                        Stroke highlightStroke = new BasicStroke(1F, CAP, JOIN);
                        g.setStroke(highlightStroke);

                        Point2D.Float start = getEdgePosition(0, true);
                        Point2D.Float end = getEdgePosition(0, false);
                        g.drawLine(Math.round(start.x), Math.round(start.y), Math
                                        .round(end.x), Math.round(end.y));
                }

                if (isHighlighted()) {
                        g.setColor(getPaintHighlightColor());
                        Stroke highlightStroke = new BasicStroke(
                                        (float) getHighlightThickness(), CAP, JOIN);
                        g.setStroke(highlightStroke);
                        if (HighlightMode.Enclosed.equals(getHighlightMode()))
                                g.fillPolygon(getPolygon());
                        else
                                g.drawPolygon(getPolygon());
                }

                float y = getY();
                Color c = getPaintColor();
                if (_alpha > 0)
                        c = new Color(c.getRed(), c.getGreen(), c.getBlue(), _alpha);

                g.setColor(c);

                Color selection = getSelectionColor(FrameMouseActions
                                .getLastMouseButton());

                // width -= getX();
                // int line = 0;
                // boolean tab = false;
                synchronized (_textLayouts) {
                        for (int i = 0; i < _textLayouts.size(); i++) {
                                TextLayout layout = _textLayouts.get(i);

                                Point p = getSelectedRange(i);
                                if (p != null) {
                                        AffineTransform at = new AffineTransform();
                                        AffineTransform orig = g.getTransform();
                                        at.translate(getX() + getJustOffset(layout), y);
                                        g.setTransform(at);

                                        g.setColor(selection);
                                        g.fill(layout.getLogicalHighlightShape(p.x, p.y));

                                        g.setTransform(orig);
                                        g.setColor(c);
                                }

                                int ldx = 1+getX()+getJustOffset(layout); // Layout draw x
                                
                                boolean debug = false;
                                if (debug) {
                                        g.setColor(new Color(c.getRed(),c.getGreen(),c.getBlue(),40));
                                        Rectangle layout_rect = layout.getPixelBounds(null, ldx, y);
                                        g.fillRect(layout_rect.x, layout_rect.y, layout_rect.width, layout_rect.height);
                                        g.setColor(c);
                                }
                                
                                
                                layout.draw(g, ldx, y);

                                /*
                                 * AffineTransform at = new AffineTransform(); AffineTransform
                                 * orig = g.getTransform(); at.translate(getX() +
                                 * getJustOffset(layout), y); g.setTransform(at);
                                 * g.draw(layout.getLogicalHighlightShape(0,
                                 * layout.getCharacterCount())); g.setTransform(orig); /*
                                 * if(_text.charAt(_lineOffsets.get(line) +
                                 * (layout.getCharacterCount() - 1)) == '\t'){ tab = true; x =
                                 * (int) (getX() + x + 20 + layout.getVisibleAdvance()); }else{
                                 */
                                y += getLineDrop(layout);
                                /*
                                 * tab = false; }
                                 * 
                                 * line++;
                                 */
                        }
                }

                paintLink(g);
        }

        @Override
        protected Rectangle getLinkDrawArea() { // TODO: Revise
                return getDrawingArea()[0];
        }

        /**
         * Determines if this text has any text in it.
         * 
         * @return True if this Item has no text in it, false otherwise.
         */
        public boolean isEmpty() {
                if (_text == null || _text.length() == 0)
                        return true;

                return false;
        }

        @Override
        public Text copy() {
                Text copy = new Text(getID());
                // copy standard item values
                Item.DuplicateItem(this, copy);

                // copy values specific to text items
                copy.setSpacing(getSpacing());
                copy.setInitialSpacing(getInitialSpacing());

                copy.setWidth(getWidthToSave());
                copy.setJustification(getJustification());
                copy.setLetterSpacing(getLetterSpacing());
                copy.setWordSpacing(getWordSpacing());
                copy.setWidth(getWidthToSave());
                copy.setFont(getFont());
                if (hasFormula()) {
                        copy.calculate(getFormula());
                } else {
                        copy.setText(_text.toString());
                }
                copy.setHidden(!isVisible());
                return copy;
        }

        @Override
        public float getSize() {
                return getPaintFont().getSize2D();
        }

        /**
         * Returns the number of characters in this Text, excluding new lines.
         * 
         * @return The sum of the length of each line of text
         */
        public int getLength() {
                return _text.length();
        }

        @Override
        public void setSize(float size) {
                invalidateAll();
                // size *= UserSettings.ScaleFactor;
                // Dont want to have size set when duplicating a point which has size 0
                if (size < 0)
                        return;

                if (size < MINIMUM_FONT_SIZE)
                        size = MINIMUM_FONT_SIZE;
                setFont(getPaintFont().deriveFont(size));
                rebuild(true);
                invalidateAll();
        }

        @Override
        public void setAnnotation(boolean val) {
                float mouseX = DisplayIO.getFloatMouseX();
                float mouseY = FrameMouseActions.MouseY;
                Point2D.Float newPoint = new Point2D.Float();
                if (val) {
                        // if this is already an annotation, do nothing
                        if (isAnnotation())
                                return;
                        if (!isLineEnd() && _text.length() > 0
                                        && _text.charAt(0) == DEFAULT_BULLET) {
                                newPoint.setLocation(insertText(""
                                                + (char) KeyEvent.VK_BACK_SPACE, mouseX, mouseY, 1));
                                if (_text.length() > 0 && _text.charAt(0) == ' ')
                                        newPoint.setLocation(insertText(""
                                                        + (char) KeyEvent.VK_BACK_SPACE, newPoint.x,
                                                        newPoint.y, 1));
                        } else {
                                newPoint.setLocation(insertText("@", mouseX, mouseY, 0));
                        }
                } else {
                        // if this is not an annotation, do nothing
                        if (!isAnnotation())
                                return;
                        if (!isLineEnd() && _text.charAt(0) == '@') {
                                newPoint.setLocation(insertText(""
                                                + (char) KeyEvent.VK_BACK_SPACE, mouseX, mouseY, 1));
                                newPoint.setLocation(insertText(DEFAULT_BULLET_STRING,
                                                newPoint.x, newPoint.y, 0));
                        } else {
                                newPoint.setLocation(insertText(""
                                                + (char) KeyEvent.VK_BACK_SPACE, mouseX, mouseY, 1));
                        }
                }
                FrameUtils.setLastEdited(this);
                rebuild(true);
                DisplayIO.setCursorPosition(newPoint.x, newPoint.y, false);
        }

        /**
         * 
         */
        private void insertString(String toInsert, int pos) {
                assert (toInsert.length() > 0);

                _text.insert(pos, toInsert);

                if (toInsert.length() > 1) {
                        _lineBreaker = null;
                }

                if (_lineBreaker != null) {
                        AttributedString inserting = new AttributedString(_text.toString());
                        inserting.addAttribute(TextAttribute.FONT, getPaintFont());
                        _lineBreaker.insertChar(inserting.getIterator(), pos);
                }
        }

        private void deleteChar(int pos) {
                _text.deleteCharAt(pos);

                if (_text.length() == 0) {
                        if (this.isLineEnd()) {
                                // Remove and replace with a dot
                                FrameKeyboardActions.replaceText(this);
                                DisplayIO.setCursorPosition(this._x, this._y);
                        }
                        return;
                }

                if (_lineBreaker != null) {
                        AttributedString inserting = new AttributedString(_text.toString());
                        inserting.addAttribute(TextAttribute.FONT, getPaintFont());
                        _lineBreaker.deleteChar(inserting.getIterator(), pos);
                }

        }

        @Override
        public boolean isAnnotation() {
                if (_text != null && _text.length() > 0 && _text.charAt(0) == '@')
                        return true;

                return false;
        }

        public boolean isSpecialAnnotation() {
                assert _text != null;
                String s = _text.toString().toLowerCase();
                if (s.length() > 0 && s.indexOf("@") == 0) {
                        if (s.equals("@old") || s.equals("@ao")
                                        || s.equals("@itemtemplate") || s.equals("@parent")
                                        || s.equals("@next") || s.equals("@previous")
                                        || s.equals("@first") || s.equals("@i") || s.equals("@iw")
                                        || s.equals("@f"))
                                return true;
                }

                return false;
        }

        @Override
        public Item merge(Item merger, int mouseX, int mouseY) {
                if (merger.isLineEnd()) {
                        // Merging line ends onto non line end text is a no-op
                        if (!isLineEnd())
                                return null;

                        if (merger instanceof Text)
                                insertText(((Text) merger).getText(), mouseX, mouseY);

                        // Set the position by moving the cursor before calling this
                        // method!!

                        List<Line> lines = new LinkedList<Line>();
                        lines.addAll(merger.getLines());
                        for (Line line : lines) {
                                line.replaceLineEnd(merger, this);
                        }
                        merger.delete();
                        this.setOffset(0, 0);
                        return null;
                }

                if (!(merger instanceof Text))
                        return merger;

                Text merge = (Text) merger;

                // insertText(merge.getText(), mouseX, mouseY);

                // if the item being merged has a link
                if (merge.getLink() != null) {
                        // if this item has a link, keep it on the cursor
                        if (getLink() != null) {
                                merge.setText(merge.getLink());
                                merge.setLink(null);
                                // return merge;
                                // TODO get this to return the merged item and attach it to the
                                // cursor only when the user presses the middle button.
                        } else
                                setLink(merge.getLink());
                }

                return null;
        }

        /**
         * Resets the position of the item to the default position for a title item.
         * 
         */
        public void resetTitlePosition() {
                setPosition(MARGIN_LEFT, MARGIN_LEFT + getBoundsHeight());
                Frame modelFrame = getParentOrCurrentFrame();
                if (modelFrame != null) {
                        setRightMargin(modelFrame.getNameItem().getX() - MARGIN_LEFT, true);
                } else {
                        System.out
                                        .print("Error: text.resetTitlePosition, getParent or currentFrame returned null");
                        setRightMargin(MARGIN_LEFT, true);
                }
        }

        /**
         * Removes the set of characters up to the first space in this text item.
         * 
         * @return the string that was removed.
         */
        public String stripFirstWord() {
                int firstSpace = _text.toString().indexOf(' ');

                // if there is only one word just make it blank
                if (firstSpace < 0 || firstSpace + 1 >= _text.length()) {
                        String text = _text.toString();
                        setText("");
                        return text;
                }

                String firstWord = _text.toString().substring(0, firstSpace);
                setText(_text.toString().substring(firstSpace).trim());

                return firstWord;
        }

        public String toString() {
                String message = "[" + getFirstLine() + "]" + FRAME_NAME_SEPARATOR;

                if (getParent() != null)
                        return message + getParent().getName();
                return message + getDateCreated();
        }

        public Text getTemplateForm() {
                Text template = this.copy();
                template.setID(-1);
                // reset width of global templates so the widths of the items on the settings frames don't cause issues
                // this is in response to the fact that FrameCreator.addItem() sets rightMargin when it adds items
                template.setWidth(null);
                /*
                 * The template must have text otherwise the bounds height will be
                 * zero!! This will stop escape drop down from working if there is no
                 * item template
                 */
                template.setText("@");
                return template;
        }

        @Override
        public boolean isNear(int x, int y) {
                if (super.isNear(x, y)) {
                        // TODO check that it is actually near one of the lines of space
                        // return contains(x, y, getGravity() * 2 + NEAR_DISTANCE);
                        // at the moment contains ignores gravity when checking the top and
                        // bottom of text lines... so the cursor must be between two text
                        // lines
                        float textY = getY();
                        float textX = getX();

                        for (TextLayout text : _textLayouts) {
                                // check left and right of each box
                                Rectangle2D textOutline = text.getLogicalHighlightShape(0,
                                                text.getCharacterCount()).getBounds2D();

                                // check if the cursor is within the top, bottom and within the
                                // gravity of right
                                if (y - textY > textOutline.getY() - NEAR_DISTANCE
                                                && y - textY < textOutline.getY()
                                                                + textOutline.getHeight() + NEAR_DISTANCE
                                                && x - textX < textOutline.getWidth() + NEAR_DISTANCE)
                                        return true;
                                textY += getLineDrop(text);
                        }
                }
                return false;
        }

        @Override
        public void anchor() {
                super.anchor();
                // ensure all text items have their selection cleared
                clearSelection();
                setAlpha(0);
                if (isLineEnd())
                        DisplayIO.setCursor(Item.DEFAULT_CURSOR);

                String text = _text.toString().trim();

                clipFrameMargin();

                // Show the overlay stuff immediately if this is an overlay item
                if (hasLink() && (text.startsWith("@ao") || text.startsWith("@o"))) {
                        FrameKeyboardActions.Refresh();
                }
        }
        
        private void clipFrameMargin() {
                if (!hasFixedWidth()) {
                        int frameWidth = FrameGraphics.getMaxFrameSize().width;
                        /*
                         * Only change width if it is more than 150 pixels from the right of
                         * the screen
                         */
                        if (!_text.toString().contains(" ")) {
                                Integer width = getWidth();
                                if (width == null || width < 0)
                                        setWidth(Integer.MIN_VALUE + 1);
                        } else if (frameWidth - getX() > ADJUST_WIDTH_THRESHOLD) {
                                justify(false);
                                // setRightMargin(frameWidth, false);
                        }
                }
        }

        public void justify(boolean fixWidth) {
                
                // if autowrap is on, wrapping is done every time we draw
                if(ExperimentalFeatures.AutoWrap.get()) {
                        return;
                }
                
                Integer width = FrameGraphics.getMaxFrameSize().width;

                // Check if that text item is inside an enclosing rectangle...
                // Set its max width accordingly
                Polygon enclosure = FrameUtils.getEnlosingPolygon();
                if (enclosure != null) {
                        Rectangle bounds = enclosure.getBounds();
                        if (bounds.width > 200 && getX() < bounds.width / 3 + bounds.x) {
                                width = bounds.x + bounds.width;
                        }
                }

                if (getWidth() == null)
                        setRightMargin(width, fixWidth);

                // Check for the annotation that restricts the width of text items
                // on the frame
                String widthString;
                if ((widthString = getParentOrCurrentFrame().getAnnotationValue(
                                "maxwidth")) != null) {
                        try {
                                int oldWidth = getWidth();
                                int maxWidth = Integer.parseInt(widthString);
                                if (maxWidth < oldWidth)
                                        setWidth(maxWidth);
                        } catch (NumberFormatException nfe) {
                        }

                }
        }

        public void resetFrameNamePosition() {
                Dimension maxSize = FrameGraphics.getMaxFrameSize();
                if (maxSize != null) {
                        // setMaxWidth(maxSize.width);
                        setPosition(maxSize.width - getBoundsWidth(), getBoundsHeight());
                }
        }

        @Override
        protected int getLinkYOffset() {
                if (_textLayouts.size() == 0)
                        return 0;
                return Math.round(-(_textLayouts.get(0).getAscent() / 2));
        }

        @Override
        public String getName() {
                return getFirstLine();
        }

        public static final String TAB_STRING = "      ";

        public Point2D.Float insertTab(char ch, float mouseX, float mouseY) {
                return insertText("" + ch, mouseX, mouseY);
        }

        public Point2D.Float removeTab(char ch, float mouseX, float mouseY) {
                // Insert a space as a flag that it is a backwards tab
                return insertText(ch + " ", mouseX, mouseY);
        }

        public static boolean isBulletChar(char c) {
                for (int i = 0; i < BULLETS.length; i++) {
                        if (BULLETS[i] == c)
                                return true;
                }
                return c == '*' || c == '+' || c == '>' || c == '-' || c == 'o';
        }

        public boolean hasOverlay() {
                if (!isAnnotation() || getLink() == null)
                        return false;
                String text = getText().toLowerCase();
                // TODO make it so can just check the _overlay variable
                // Mike cant remember the reason _overlay var cant be use! opps
                if (!text.startsWith("@"))
                        return false;
                return text.startsWith("@o") || text.startsWith("@ao")
                                || text.startsWith("@v") || text.startsWith("@av");
        }

        public boolean hasSelection() {
                return getSelectionSize() > 0;
        }

        /**
         * Dont save text items that are all white space.
         */
        @Override
        public boolean dontSave() {
                String text = getText();
                assert (text != null);
                return text.trim().length() == 0 || super.dontSave();
        }

        @Override
        public boolean calculate(String formula) {
                if (FrameGraphics.isXRayMode())
                        return false;

                super.calculate(formula);
                if (isFloating() || formula == null || formula.length() == 0) {
                        return false;
                }
                formula = formula.replace(':', '=');

                String lowercaseFormula = formula.toLowerCase();
                ExpediteeJEP myParser = new ExpediteeJEP();

                int nextVarNo = 1;

                // Add variables from the containing rectangle if the item being
                // calculated is inside the enclosing rectangle
                Collection<Item> enclosed = getItemsInSameEnclosure();
                for (Item i : enclosed) {
                        if (i == this)
                                continue;
                        if (i instanceof Text && !i.isAnnotation()) {
                                AttributeValuePair pair = i.getAttributeValuePair();
                                if (pair.hasPair()) {
                                        try {
                                                double value = pair.getDoubleValue();
                                                myParser.addVariable(pair.getAttribute(), value);
                                                // myParser.addVariable("$" + nextVarNo++, value);
                                        } catch (NumberFormatException nfe) {
                                                continue;
                                        } catch (Exception e) {
                                                e.printStackTrace();
                                        }
                                } // else {
                                // Add anonomous vars
                                try {
                                        double value = pair.getDoubleValue();
                                        if (value != Double.NaN)
                                                myParser.addVariable("$" + nextVarNo++, value);
                                } catch (NumberFormatException nfe) {
                                        continue;
                                } catch (Exception e) {
                                        e.printStackTrace();
                                }
                                // }
                        }
                }

                // Add the variables from this frame
                myParser.addVariables(this.getParentOrCurrentFrame());
                String linkedFrame = getAbsoluteLink();
                // Add the relative frame variable if the item is linked
                if (linkedFrame != null) {
                        Frame frame = FrameIO.LoadFrame(linkedFrame);
                        myParser.addVariables(frame);
                        // If the frame is linked add vector variable for the frame
                        if (lowercaseFormula.contains("$frame")) {
                                myParser.addVectorVariable(frame.getNonAnnotationItems(true),
                                                "$frame");
                        }
                }
                // Add the relative box variable if this item is a line end
                if (this.isLineEnd()) {
                        // if its a line end add the enclosed stuff as an @variable
                        if (lowercaseFormula.contains("$box")) {
                                myParser.addVectorVariable(getEnclosedItems(), "$box");
                        }
                }
                myParser.resetObserver();
                try {
                        Node node = myParser.parse(formula);
                        String result = myParser.evaluate(node);
                        if (result != null) {
                                this.setText(result);
                                this.setFormula(formula);

                                if (!this.hasAction()) {
                                        setActionMark(false);
                                        setAction("extract formula");
                                }
                        }
                } catch (Throwable e) {
                        //e.printStackTrace();
                        String formula2 = getFormula();
                        this.setText(formula2);
                        this.setFormula(formula2);
                        return false;
                }

                _attributeValuePair = null;

                return true;
        }

        /**
         * Gets items which are in the same enclosure as this item. 
         * In the event more than one enclosure meets this criteria, then
         * the one returned is the one with the smallest area.
         * TODO: Improve the efficiency of this method
         * 
         * @return
         */
        public Collection<Item> getItemsInSameEnclosure() {
                Collection<Item> sameEnclosure = null;
                Collection<Item> seen = new HashSet<Item>();
                Frame parent = getParentOrCurrentFrame();
                double enclosureArea = Double.MAX_VALUE;
                for (Item i : parent.getVisibleItems()) {
                        /*
                         * Go through all the enclosures looking for one that includes this
                         * item
                         */
                        if (!seen.contains(i) && i.isEnclosed()) {
                                seen.addAll(i.getEnclosingDots());
                                Collection<Item> enclosed = i.getEnclosedItems();
                                // Check if we have found an enclosure containing this item
                                // Check it is smaller than any other enclosure found containing
                                // this item
                                if (enclosed.contains(this)
                                                && i.getEnclosedArea() < enclosureArea) {
                                        sameEnclosure = enclosed;
                                }
                        }
                }

                if (sameEnclosure == null)
                        return new LinkedList<Item>();

                return sameEnclosure;
        }
        
        /**
         * Returns true if items of the parent frame should be recalculated when
         * this item is modified
         */
        public boolean recalculateWhenChanged() {
                if (/*
                         * !isAnnotation() &&
                         */(hasFormula() || isLineEnd()))
                        return true;
                try {
                        AttributeValuePair avp = getAttributeValuePair();

                        if (!avp.getDoubleValue().equals(Double.NaN))
                                return true;
                } catch (Exception e) {
                        e.printStackTrace();
                }

                return false;
        }

        public float getLineHeight() {
                return getLineDrop(_textLayouts.get(0));
        }

        @Override
        public void setAnchorLeft(Float anchor) {
                if (!isLineEnd()) {
                        super.setAnchorLeft(anchor);
                        // Subtract off the link width
                        if (anchor != null) {
                                setX(anchor + getLeftMargin());
                        }
                        return;
                }
                invalidateFill();
                invalidateCommonTrait(ItemAppearence.PreMoved);
                
                this._anchorLeft = anchor;
                this._anchorRight = null;
                
                int oldX = getX();
                if (anchor != null) {
                        float deltaX = anchor + getLeftMargin() - oldX;
                        anchorConnected(AnchorEdgeType.Left, deltaX);
                }

                invalidateCommonTrait(ItemAppearence.PostMoved);
                invalidateFill();
        }

        @Override
        public void setAnchorRight(Float anchor) {
                if (!isLineEnd()) {
                        super.setAnchorRight(anchor);
                        // Subtract off the link width
                        if (anchor != null) {
                                setX(FrameGraphics.getMaxFrameSize().width - anchor
                                                - getBoundsWidth() + getLeftMargin());
                        }
                        return;
                }
                invalidateFill();
                invalidateCommonTrait(ItemAppearence.PreMoved);
                
                this._anchorRight = anchor;
                this._anchorLeft = null;
                
                int oldX = getX();
                if (anchor != null) {
                        float deltaX = FrameGraphics.getMaxFrameSize().width - anchor
                                        - getBoundsWidth() + getLeftMargin() - oldX;
                        anchorConnected(AnchorEdgeType.Right, deltaX);
                }

                invalidateCommonTrait(ItemAppearence.PostMoved);
                invalidateFill();
        }



        @Override
        public void setAnchorTop(Float anchor) {
                if (!isLineEnd()) {
                        super.setAnchorTop(anchor);
                        if (anchor != null) {
                                setY(anchor + _textLayouts.get(0).getAscent());
                        }
                        return;
                }
                invalidateFill();
                invalidateCommonTrait(ItemAppearence.PreMoved);
                
                this._anchorTop = anchor;
                this._anchorBottom = null;
                
                int oldY = getY();
                if (anchor != null) {
                        float deltaY = anchor - oldY;
                        anchorConnected(AnchorEdgeType.Top, deltaY);
                }

                invalidateCommonTrait(ItemAppearence.PostMoved);
                invalidateFill();
        }

        @Override
        public void setAnchorBottom(Float anchor) {
                if (!isLineEnd()) {
                        super.setAnchorBottom(anchor);
                        if (anchor != null) {
                                setY(FrameGraphics.getMaxFrameSize().height - (anchor + this.getBoundsHeight() - _textLayouts.get(0).getAscent() - _textLayouts.get(0).getDescent()));
                        }
                        return;
                }
                invalidateFill();
                invalidateCommonTrait(ItemAppearence.PreMoved);
                
                this._anchorBottom = anchor;
                this._anchorTop = null;
                
                int oldY = getY();
                if (anchor != null) {

                        float deltaY = FrameGraphics.getMaxFrameSize().height - anchor - oldY;
                        anchorConnected(AnchorEdgeType.Bottom, deltaY);
                }

                invalidateCommonTrait(ItemAppearence.PostMoved);
                invalidateFill();
        }

        @Override
        public void scale(Float scale, int originX, int originY) {
                setSize(getSize() * scale);

                Integer width = getWidth();
                if (width != null) {
                        setWidth(Math.round(width * scale));
                }
                
                super.scale(scale, originX, originY);
                rebuild(true);
        }

        
        
        public Rectangle getPixelBoundsUnion()
        {
                synchronized (_textLayouts) {
                        
                        int x = getX();
                        int y = getY();
        
                        int min_xl = Integer.MAX_VALUE;
                        int max_xr = Integer.MIN_VALUE;
        
                        int min_yt = Integer.MAX_VALUE;
                        int max_yb = Integer.MIN_VALUE;
                
                        
                        for (int i = 0; i < _textLayouts.size(); i++) {
                                TextLayout layout = _textLayouts.get(i);

                                int ldx = 1+x+getJustOffset(layout); // Layout draw x                           
                                Rectangle layout_rect = layout.getPixelBounds(null, ldx, y);
                                        
                                int xl = layout_rect.x;
                                int xr = xl + layout_rect.width -1;
                                
                                int yt = layout_rect.y;
                                int yb = yt + layout_rect.height -1;
                                
                                min_xl = Math.min(min_xl,xl);
                                max_xr = Math.max(max_xr,xr);
                                
                                min_yt = Math.min(min_yt,yt);
                                max_yb = Math.max(max_yb,yb);
                        }
                        
                        if ((min_xl >= max_xr) || (min_yt >= max_yb)) {
                                // No valid rectangle are found
                                return null;
                        }
                        
                        return new Rectangle(min_xl,min_yt,max_xr-min_xl+1,max_yb-min_yt+1);
                        
                }
                                        
        }
        /*
         * Returns the SIMPLE statement contained by this text item.
         * 
         */
        public String getStatement() {
                return getText().split("\\s+")[0];
        }
        
        public boolean getAutoWrap() {
                return _autoWrap;
        }
        
        // workaround since true is the default value and would not be displayed normally
        public String getAutoWrapToSave() {
                if(!_autoWrap) {
                        return null;
                }
                return "true";
        }
        
        public void setAutoWrap(boolean autoWrap) {
                _autoWrap = autoWrap;
        }
}