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jlechner |
/* WrappedPlainView.java --
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.swing.text;
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import java.awt.Color;
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import java.awt.Container;
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import java.awt.FontMetrics;
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import java.awt.Graphics;
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import java.awt.Rectangle;
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import java.awt.Shape;
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import javax.swing.SwingConstants;
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import javax.swing.event.DocumentEvent;
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import javax.swing.text.Position.Bias;
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/**
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* @author Anthony Balkissoon abalkiss at redhat dot com
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*
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*/
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public class WrappedPlainView extends BoxView implements TabExpander
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{
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/** The color for selected text **/
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Color selectedColor;
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/** The color for unselected text **/
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Color unselectedColor;
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/** The color for disabled components **/
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Color disabledColor;
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/** Stores the font metrics **/
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protected FontMetrics metrics;
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/** Whether or not to wrap on word boundaries **/
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boolean wordWrap;
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/** A ViewFactory that creates WrappedLines **/
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ViewFactory viewFactory = new WrappedLineCreator();
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/** The start of the selected text **/
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int selectionStart;
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/** The end of the selected text **/
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int selectionEnd;
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/**
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* The instance returned by {@link #getLineBuffer()}.
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*/
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private transient Segment lineBuffer;
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public WrappedPlainView (Element elem)
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{
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this (elem, false);
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}
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public WrappedPlainView (Element elem, boolean wordWrap)
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{
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super (elem, Y_AXIS);
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this.wordWrap = wordWrap;
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}
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/**
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* Provides access to the Segment used for retrievals from the Document.
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* @return the Segment.
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*/
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protected final Segment getLineBuffer()
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{
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if (lineBuffer == null)
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lineBuffer = new Segment();
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return lineBuffer;
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}
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/**
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* Returns the next tab stop position after a given reference position.
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*
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* This implementation ignores the <code>tabStop</code> argument.
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*
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* @param x the current x position in pixels
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* @param tabStop the position within the text stream that the tab occured at
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*/
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public float nextTabStop(float x, int tabStop)
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{
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JTextComponent host = (JTextComponent)getContainer();
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float tabSizePixels = getTabSize()
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* host.getFontMetrics(host.getFont()).charWidth('m');
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return (float) (Math.floor(x / tabSizePixels) + 1) * tabSizePixels;
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}
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/**
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* Returns the tab size for the Document based on
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* PlainDocument.tabSizeAttribute, defaulting to 8 if this property is
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* not defined
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*
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* @return the tab size.
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*/
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protected int getTabSize()
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{
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Object tabSize = getDocument().getProperty(PlainDocument.tabSizeAttribute);
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if (tabSize == null)
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return 8;
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return ((Integer)tabSize).intValue();
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}
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/**
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* Draws a line of text, suppressing white space at the end and expanding
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* tabs. Calls drawSelectedText and drawUnselectedText.
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* @param p0 starting document position to use
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* @param p1 ending document position to use
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* @param g graphics context
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* @param x starting x position
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* @param y starting y position
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*/
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protected void drawLine(int p0, int p1, Graphics g, int x, int y)
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{
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try
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{
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// We have to draw both selected and unselected text. There are
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// several cases:
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// - entire range is unselected
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// - entire range is selected
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// - start of range is selected, end of range is unselected
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// - start of range is unselected, end of range is selected
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// - middle of range is selected, start and end of range is unselected
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// entire range unselected:
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if ((selectionStart == selectionEnd) ||
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(p0 > selectionEnd || p1 < selectionStart))
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drawUnselectedText(g, x, y, p0, p1);
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// entire range selected
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else if (p0 >= selectionStart && p1 <= selectionEnd)
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drawSelectedText(g, x, y, p0, p1);
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// start of range selected, end of range unselected
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else if (p0 >= selectionStart)
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{
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x = drawSelectedText(g, x, y, p0, selectionEnd);
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drawUnselectedText(g, x, y, selectionEnd, p1);
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}
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// start of range unselected, end of range selected
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else if (selectionStart > p0 && selectionEnd > p1)
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{
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x = drawUnselectedText(g, x, y, p0, selectionStart);
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drawSelectedText(g, x, y, selectionStart, p1);
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}
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// middle of range selected
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else if (selectionStart > p0)
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{
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x = drawUnselectedText(g, x, y, p0, selectionStart);
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x = drawSelectedText(g, x, y, selectionStart, selectionEnd);
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drawUnselectedText(g, x, y, selectionEnd, p1);
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}
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}
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catch (BadLocationException ble)
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{
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// shouldn't happen
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}
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}
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/**
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* Renders the range of text as selected text. Just paints the text
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* in the color specified by the host component. Assumes the highlighter
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* will render the selected background.
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* @param g the graphics context
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* @param x the starting X coordinate
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* @param y the starting Y coordinate
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* @param p0 the starting model location
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* @param p1 the ending model location
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* @return the X coordinate of the end of the text
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* @throws BadLocationException if the given range is invalid
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*/
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protected int drawSelectedText(Graphics g, int x, int y, int p0, int p1)
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throws BadLocationException
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{
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g.setColor(selectedColor);
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Segment segment = getLineBuffer();
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getDocument().getText(p0, p1 - p0, segment);
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return Utilities.drawTabbedText(segment, x, y, g, this, p0);
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}
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/**
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* Renders the range of text as normal unhighlighted text.
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* @param g the graphics context
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* @param x the starting X coordinate
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* @param y the starting Y coordinate
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* @param p0 the starting model location
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* @param p1 the end model location
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* @return the X location of the end off the range
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* @throws BadLocationException if the range given is invalid
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*/
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protected int drawUnselectedText(Graphics g, int x, int y, int p0, int p1)
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throws BadLocationException
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{
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JTextComponent textComponent = (JTextComponent) getContainer();
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if (textComponent.isEnabled())
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g.setColor(unselectedColor);
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else
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g.setColor(disabledColor);
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Segment segment = getLineBuffer();
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getDocument().getText(p0, p1 - p0, segment);
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return Utilities.drawTabbedText(segment, x, y, g, this, p0);
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}
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/**
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* Loads the children to initiate the view. Called by setParent.
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* Creates a WrappedLine for each child Element.
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*/
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protected void loadChildren (ViewFactory f)
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{
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Element root = getElement();
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int numChildren = root.getElementCount();
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if (numChildren == 0)
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return;
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View[] children = new View[numChildren];
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for (int i = 0; i < numChildren; i++)
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children[i] = new WrappedLine(root.getElement(i));
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replace(0, 0, children);
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}
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/**
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* Calculates the break position for the text between model positions
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* p0 and p1. Will break on word boundaries or character boundaries
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* depending on the break argument given in construction of this
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* WrappedPlainView. Used by the nested WrappedLine class to determine
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* when to start the next logical line.
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* @param p0 the start model position
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* @param p1 the end model position
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* @return the model position at which to break the text
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*/
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protected int calculateBreakPosition(int p0, int p1)
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{
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Container c = getContainer();
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Rectangle alloc = c.isValid() ? c.getBounds()
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: new Rectangle(c.getPreferredSize());
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updateMetrics();
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try
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{
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getDocument().getText(p0, p1 - p0, getLineBuffer());
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}
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catch (BadLocationException ble)
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{
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// this shouldn't happen
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}
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// FIXME: Should we account for the insets of the container?
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if (wordWrap)
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return p0
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+ Utilities.getBreakLocation(lineBuffer, metrics, alloc.x,
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alloc.x + alloc.width, this, 0);
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else
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{
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return p0
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+ Utilities.getTabbedTextOffset(lineBuffer, metrics, alloc.x,
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alloc.x + alloc.width, this, 0);
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}
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}
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void updateMetrics()
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{
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Container component = getContainer();
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metrics = component.getFontMetrics(component.getFont());
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}
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/**
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* Determines the preferred span along the given axis. Implemented to
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* cache the font metrics and then call the super classes method.
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*/
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public float getPreferredSpan (int axis)
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{
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updateMetrics();
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return super.getPreferredSpan(axis);
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}
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/**
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* Determines the minimum span along the given axis. Implemented to
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* cache the font metrics and then call the super classes method.
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*/
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public float getMinimumSpan (int axis)
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{
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updateMetrics();
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return super.getMinimumSpan(axis);
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}
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/**
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* Determines the maximum span along the given axis. Implemented to
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* cache the font metrics and then call the super classes method.
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*/
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public float getMaximumSpan (int axis)
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{
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updateMetrics();
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return super.getMaximumSpan(axis);
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}
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/**
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* Called when something was inserted. Overridden so that
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* the view factory creates WrappedLine views.
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*/
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public void insertUpdate (DocumentEvent e, Shape a, ViewFactory f)
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{
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super.insertUpdate(e, a, viewFactory);
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// FIXME: could improve performance by repainting only the necessary area
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getContainer().repaint();
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}
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/**
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* Called when something is removed. Overridden so that
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* the view factory creates WrappedLine views.
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*/
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public void removeUpdate (DocumentEvent e, Shape a, ViewFactory f)
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{
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super.removeUpdate(e, a, viewFactory);
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// FIXME: could improve performance by repainting only the necessary area
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getContainer().repaint();
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}
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/**
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* Called when the portion of the Document that this View is responsible
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* for changes. Overridden so that the view factory creates
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* WrappedLine views.
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*/
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public void changedUpdate (DocumentEvent e, Shape a, ViewFactory f)
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{
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super.changedUpdate(e, a, viewFactory);
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// FIXME: could improve performance by repainting only the necessary area
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getContainer().repaint();
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}
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|
|
class WrappedLineCreator implements ViewFactory
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368 |
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{
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// Creates a new WrappedLine
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370 |
|
|
public View create(Element elem)
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371 |
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|
{
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|
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return new WrappedLine(elem);
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}
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}
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/**
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|
* Renders the <code>Element</code> that is associated with this
|
378 |
|
|
* <code>View</code>. Caches the metrics and then calls
|
379 |
|
|
* super.paint to paint all the child views.
|
380 |
|
|
*
|
381 |
|
|
* @param g the <code>Graphics</code> context to render to
|
382 |
|
|
* @param a the allocated region for the <code>Element</code>
|
383 |
|
|
*/
|
384 |
|
|
public void paint(Graphics g, Shape a)
|
385 |
|
|
{
|
386 |
|
|
JTextComponent comp = (JTextComponent)getContainer();
|
387 |
|
|
selectionStart = comp.getSelectionStart();
|
388 |
|
|
selectionEnd = comp.getSelectionEnd();
|
389 |
|
|
updateMetrics();
|
390 |
|
|
super.paint(g, a);
|
391 |
|
|
}
|
392 |
|
|
|
393 |
|
|
/**
|
394 |
|
|
* Sets the size of the View. Implemented to update the metrics
|
395 |
|
|
* and then call super method.
|
396 |
|
|
*/
|
397 |
|
|
public void setSize (float width, float height)
|
398 |
|
|
{
|
399 |
|
|
updateMetrics();
|
400 |
|
|
if (width != getWidth())
|
401 |
|
|
preferenceChanged(null, true, true);
|
402 |
|
|
super.setSize(width, height);
|
403 |
|
|
}
|
404 |
|
|
|
405 |
|
|
class WrappedLine extends View
|
406 |
|
|
{
|
407 |
|
|
/** Used to cache the number of lines for this View **/
|
408 |
|
|
int numLines;
|
409 |
|
|
|
410 |
|
|
public WrappedLine(Element elem)
|
411 |
|
|
{
|
412 |
|
|
super(elem);
|
413 |
|
|
determineNumLines();
|
414 |
|
|
}
|
415 |
|
|
|
416 |
|
|
/**
|
417 |
|
|
* Renders this (possibly wrapped) line using the given Graphics object
|
418 |
|
|
* and on the given rendering surface.
|
419 |
|
|
*/
|
420 |
|
|
public void paint(Graphics g, Shape s)
|
421 |
|
|
{
|
422 |
|
|
// Ensure metrics are up-to-date.
|
423 |
|
|
updateMetrics();
|
424 |
|
|
JTextComponent textComponent = (JTextComponent) getContainer();
|
425 |
|
|
|
426 |
|
|
g.setFont(textComponent.getFont());
|
427 |
|
|
selectedColor = textComponent.getSelectedTextColor();
|
428 |
|
|
unselectedColor = textComponent.getForeground();
|
429 |
|
|
disabledColor = textComponent.getDisabledTextColor();
|
430 |
|
|
|
431 |
|
|
// FIXME: this is a hack, for some reason textComponent.getSelectedColor
|
432 |
|
|
// was returning black, which is not visible against a black background
|
433 |
|
|
selectedColor = Color.WHITE;
|
434 |
|
|
|
435 |
|
|
Rectangle rect = s.getBounds();
|
436 |
|
|
int lineHeight = metrics.getHeight();
|
437 |
|
|
|
438 |
|
|
int end = getEndOffset();
|
439 |
|
|
int currStart = getStartOffset();
|
440 |
|
|
int currEnd;
|
441 |
|
|
while (currStart < end)
|
442 |
|
|
{
|
443 |
|
|
currEnd = calculateBreakPosition(currStart, end);
|
444 |
|
|
drawLine(currStart, currEnd, g, rect.x, rect.y);
|
445 |
|
|
rect.y += lineHeight;
|
446 |
|
|
if (currEnd == currStart)
|
447 |
|
|
currStart ++;
|
448 |
|
|
else
|
449 |
|
|
currStart = currEnd;
|
450 |
|
|
}
|
451 |
|
|
}
|
452 |
|
|
|
453 |
|
|
/**
|
454 |
|
|
* Determines the number of logical lines that the Element
|
455 |
|
|
* needs to be displayed
|
456 |
|
|
* @return the number of lines needed to display the Element
|
457 |
|
|
*/
|
458 |
|
|
int determineNumLines()
|
459 |
|
|
{
|
460 |
|
|
numLines = 0;
|
461 |
|
|
int end = getEndOffset();
|
462 |
|
|
if (end == 0)
|
463 |
|
|
return 0;
|
464 |
|
|
|
465 |
|
|
int breakPoint;
|
466 |
|
|
for (int i = getStartOffset(); i < end;)
|
467 |
|
|
{
|
468 |
|
|
numLines ++;
|
469 |
|
|
// careful: check that there's no off-by-one problem here
|
470 |
|
|
// depending on which position calculateBreakPosition returns
|
471 |
|
|
breakPoint = calculateBreakPosition(i, end);
|
472 |
|
|
if (breakPoint == i)
|
473 |
|
|
i ++;
|
474 |
|
|
else
|
475 |
|
|
i = breakPoint;
|
476 |
|
|
}
|
477 |
|
|
return numLines;
|
478 |
|
|
}
|
479 |
|
|
|
480 |
|
|
/**
|
481 |
|
|
* Determines the preferred span for this view along the given axis.
|
482 |
|
|
*
|
483 |
|
|
* @param axis the axis (either X_AXIS or Y_AXIS)
|
484 |
|
|
*
|
485 |
|
|
* @return the preferred span along the given axis.
|
486 |
|
|
* @throws IllegalArgumentException if axis is not X_AXIS or Y_AXIS
|
487 |
|
|
*/
|
488 |
|
|
public float getPreferredSpan(int axis)
|
489 |
|
|
{
|
490 |
|
|
if (axis == X_AXIS)
|
491 |
|
|
return getWidth();
|
492 |
|
|
else if (axis == Y_AXIS)
|
493 |
|
|
return numLines * metrics.getHeight();
|
494 |
|
|
|
495 |
|
|
throw new IllegalArgumentException("Invalid axis for getPreferredSpan: "
|
496 |
|
|
+ axis);
|
497 |
|
|
}
|
498 |
|
|
|
499 |
|
|
/**
|
500 |
|
|
* Provides a mapping from model space to view space.
|
501 |
|
|
*
|
502 |
|
|
* @param pos the position in the model
|
503 |
|
|
* @param a the region into which the view is rendered
|
504 |
|
|
* @param b the position bias (forward or backward)
|
505 |
|
|
*
|
506 |
|
|
* @return a box in view space that represents the given position
|
507 |
|
|
* in model space
|
508 |
|
|
* @throws BadLocationException if the given model position is invalid
|
509 |
|
|
*/
|
510 |
|
|
public Shape modelToView(int pos, Shape a, Bias b)
|
511 |
|
|
throws BadLocationException
|
512 |
|
|
{
|
513 |
|
|
Segment s = getLineBuffer();
|
514 |
|
|
int lineHeight = metrics.getHeight();
|
515 |
|
|
Rectangle rect = a.getBounds();
|
516 |
|
|
|
517 |
|
|
// Return a rectangle with width 1 and height equal to the height
|
518 |
|
|
// of the text
|
519 |
|
|
rect.height = lineHeight;
|
520 |
|
|
rect.width = 1;
|
521 |
|
|
|
522 |
|
|
int currLineStart = getStartOffset();
|
523 |
|
|
int end = getEndOffset();
|
524 |
|
|
|
525 |
|
|
if (pos < currLineStart || pos >= end)
|
526 |
|
|
throw new BadLocationException("invalid offset", pos);
|
527 |
|
|
|
528 |
|
|
while (true)
|
529 |
|
|
{
|
530 |
|
|
int currLineEnd = calculateBreakPosition(currLineStart, end);
|
531 |
|
|
// If pos is between currLineStart and currLineEnd then just find
|
532 |
|
|
// the width of the text from currLineStart to pos and add that
|
533 |
|
|
// to rect.x
|
534 |
|
|
if (pos >= currLineStart && pos < currLineEnd || pos == end - 1)
|
535 |
|
|
{
|
536 |
|
|
try
|
537 |
|
|
{
|
538 |
|
|
getDocument().getText(currLineStart, pos - currLineStart, s);
|
539 |
|
|
}
|
540 |
|
|
catch (BadLocationException ble)
|
541 |
|
|
{
|
542 |
|
|
// Shouldn't happen
|
543 |
|
|
}
|
544 |
|
|
rect.x += Utilities.getTabbedTextWidth(s, metrics, rect.x,
|
545 |
|
|
WrappedPlainView.this,
|
546 |
|
|
currLineStart);
|
547 |
|
|
return rect;
|
548 |
|
|
}
|
549 |
|
|
// Increment rect.y so we're checking the next logical line
|
550 |
|
|
rect.y += lineHeight;
|
551 |
|
|
|
552 |
|
|
// Increment currLineStart to the model position of the start
|
553 |
|
|
// of the next logical line
|
554 |
|
|
if (currLineEnd == currLineStart)
|
555 |
|
|
currLineStart = end;
|
556 |
|
|
else
|
557 |
|
|
currLineStart = currLineEnd;
|
558 |
|
|
}
|
559 |
|
|
|
560 |
|
|
}
|
561 |
|
|
|
562 |
|
|
/**
|
563 |
|
|
* Provides a mapping from view space to model space.
|
564 |
|
|
*
|
565 |
|
|
* @param x the x coordinate in view space
|
566 |
|
|
* @param y the y coordinate in view space
|
567 |
|
|
* @param a the region into which the view is rendered
|
568 |
|
|
* @param b the position bias (forward or backward)
|
569 |
|
|
*
|
570 |
|
|
* @return the location in the model that best represents the
|
571 |
|
|
* given point in view space
|
572 |
|
|
*/
|
573 |
|
|
public int viewToModel(float x, float y, Shape a, Bias[] b)
|
574 |
|
|
{
|
575 |
|
|
Segment s = getLineBuffer();
|
576 |
|
|
Rectangle rect = a.getBounds();
|
577 |
|
|
int currLineStart = getStartOffset();
|
578 |
|
|
int end = getEndOffset();
|
579 |
|
|
int lineHeight = metrics.getHeight();
|
580 |
|
|
if (y < rect.y)
|
581 |
|
|
return currLineStart;
|
582 |
|
|
if (y > rect.y + rect.height)
|
583 |
|
|
return end - 1;
|
584 |
|
|
|
585 |
|
|
while (true)
|
586 |
|
|
{
|
587 |
|
|
int currLineEnd = calculateBreakPosition(currLineStart, end);
|
588 |
|
|
// If we're at the right y-position that means we're on the right
|
589 |
|
|
// logical line and we should look for the character
|
590 |
|
|
if (y >= rect.y && y < rect.y + lineHeight)
|
591 |
|
|
{
|
592 |
|
|
// Check if the x position is to the left or right of the text
|
593 |
|
|
if (x < rect.x)
|
594 |
|
|
return currLineStart;
|
595 |
|
|
if (x > rect.x + rect.width)
|
596 |
|
|
return currLineEnd - 1;
|
597 |
|
|
|
598 |
|
|
try
|
599 |
|
|
{
|
600 |
|
|
getDocument().getText(currLineStart, end - currLineStart, s);
|
601 |
|
|
}
|
602 |
|
|
catch (BadLocationException ble)
|
603 |
|
|
{
|
604 |
|
|
// Shouldn't happen
|
605 |
|
|
}
|
606 |
|
|
int mark = Utilities.getTabbedTextOffset(s, metrics, rect.x,
|
607 |
|
|
(int) x,
|
608 |
|
|
WrappedPlainView.this,
|
609 |
|
|
currLineStart);
|
610 |
|
|
return currLineStart + mark;
|
611 |
|
|
}
|
612 |
|
|
// Increment rect.y so we're checking the next logical line
|
613 |
|
|
rect.y += lineHeight;
|
614 |
|
|
|
615 |
|
|
// Increment currLineStart to the model position of the start
|
616 |
|
|
// of the next logical line
|
617 |
|
|
if (currLineEnd == currLineStart)
|
618 |
|
|
currLineStart = end;
|
619 |
|
|
else
|
620 |
|
|
currLineStart = currLineEnd;
|
621 |
|
|
}
|
622 |
|
|
}
|
623 |
|
|
|
624 |
|
|
/**
|
625 |
|
|
* Returns the document position that is (visually) nearest to the given
|
626 |
|
|
* document position <code>pos</code> in the given direction <code>d</code>.
|
627 |
|
|
*
|
628 |
|
|
* @param c the text component
|
629 |
|
|
* @param pos the document position
|
630 |
|
|
* @param b the bias for <code>pos</code>
|
631 |
|
|
* @param d the direction, must be either {@link SwingConstants#NORTH},
|
632 |
|
|
* {@link SwingConstants#SOUTH}, {@link SwingConstants#WEST} or
|
633 |
|
|
* {@link SwingConstants#EAST}
|
634 |
|
|
* @param biasRet an array of {@link Position.Bias} that can hold at least
|
635 |
|
|
* one element, which is filled with the bias of the return position
|
636 |
|
|
* on method exit
|
637 |
|
|
*
|
638 |
|
|
* @return the document position that is (visually) nearest to the given
|
639 |
|
|
* document position <code>pos</code> in the given direction
|
640 |
|
|
* <code>d</code>
|
641 |
|
|
*
|
642 |
|
|
* @throws BadLocationException if <code>pos</code> is not a valid offset
|
643 |
|
|
* in the document model
|
644 |
|
|
*/
|
645 |
|
|
public int getNextVisualPositionFrom(JTextComponent c, int pos,
|
646 |
|
|
Position.Bias b, int d,
|
647 |
|
|
Position.Bias[] biasRet)
|
648 |
|
|
throws BadLocationException
|
649 |
|
|
{
|
650 |
|
|
// TODO: Implement this properly.
|
651 |
|
|
throw new AssertionError("Not implemented yet.");
|
652 |
|
|
}
|
653 |
|
|
|
654 |
|
|
/**
|
655 |
|
|
* This method is called from insertUpdate and removeUpdate.
|
656 |
|
|
* If the number of lines in the document has changed, just repaint
|
657 |
|
|
* the whole thing (note, could improve performance by not repainting
|
658 |
|
|
* anything above the changes). If the number of lines hasn't changed,
|
659 |
|
|
* just repaint the given Rectangle.
|
660 |
|
|
* @param a the Rectangle to repaint if the number of lines hasn't changed
|
661 |
|
|
*/
|
662 |
|
|
void updateDamage (Rectangle a)
|
663 |
|
|
{
|
664 |
|
|
int newNumLines = determineNumLines();
|
665 |
|
|
if (numLines != newNumLines)
|
666 |
|
|
{
|
667 |
|
|
numLines = newNumLines;
|
668 |
|
|
getContainer().repaint();
|
669 |
|
|
}
|
670 |
|
|
else
|
671 |
|
|
getContainer().repaint(a.x, a.y, a.width, a.height);
|
672 |
|
|
}
|
673 |
|
|
|
674 |
|
|
/**
|
675 |
|
|
* This method is called when something is inserted into the Document
|
676 |
|
|
* that this View is displaying.
|
677 |
|
|
*
|
678 |
|
|
* @param changes the DocumentEvent for the changes.
|
679 |
|
|
* @param a the allocation of the View
|
680 |
|
|
* @param f the ViewFactory used to rebuild
|
681 |
|
|
*/
|
682 |
|
|
public void insertUpdate (DocumentEvent changes, Shape a, ViewFactory f)
|
683 |
|
|
{
|
684 |
|
|
updateDamage((Rectangle)a);
|
685 |
|
|
}
|
686 |
|
|
|
687 |
|
|
/**
|
688 |
|
|
* This method is called when something is removed from the Document
|
689 |
|
|
* that this View is displaying.
|
690 |
|
|
*
|
691 |
|
|
* @param changes the DocumentEvent for the changes.
|
692 |
|
|
* @param a the allocation of the View
|
693 |
|
|
* @param f the ViewFactory used to rebuild
|
694 |
|
|
*/
|
695 |
|
|
public void removeUpdate (DocumentEvent changes, Shape a, ViewFactory f)
|
696 |
|
|
{
|
697 |
|
|
updateDamage((Rectangle)a);
|
698 |
|
|
}
|
699 |
|
|
}
|
700 |
|
|
}
|