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jeremybenn |
/* BasicTextUI.java --
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Copyright (C) 2002, 2003, 2004, 2005, 2006 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.plaf.basic;
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import gnu.classpath.SystemProperties;
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import java.awt.Color;
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import java.awt.Container;
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import java.awt.Dimension;
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import java.awt.Graphics;
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import java.awt.HeadlessException;
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import java.awt.Insets;
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import java.awt.Point;
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import java.awt.Rectangle;
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import java.awt.Shape;
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import java.awt.Toolkit;
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import java.awt.datatransfer.Clipboard;
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import java.awt.datatransfer.StringSelection;
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import java.awt.event.FocusEvent;
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import java.awt.event.FocusListener;
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import java.beans.PropertyChangeEvent;
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import java.beans.PropertyChangeListener;
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import javax.swing.Action;
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import javax.swing.ActionMap;
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import javax.swing.InputMap;
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import javax.swing.JComponent;
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import javax.swing.LookAndFeel;
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import javax.swing.SwingConstants;
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import javax.swing.SwingUtilities;
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import javax.swing.TransferHandler;
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import javax.swing.UIManager;
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import javax.swing.event.DocumentEvent;
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import javax.swing.event.DocumentListener;
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import javax.swing.plaf.ActionMapUIResource;
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import javax.swing.plaf.InputMapUIResource;
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import javax.swing.plaf.TextUI;
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import javax.swing.plaf.UIResource;
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import javax.swing.text.AbstractDocument;
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import javax.swing.text.AttributeSet;
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import javax.swing.text.BadLocationException;
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import javax.swing.text.Caret;
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import javax.swing.text.DefaultCaret;
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import javax.swing.text.DefaultEditorKit;
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import javax.swing.text.DefaultHighlighter;
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import javax.swing.text.Document;
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import javax.swing.text.EditorKit;
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import javax.swing.text.Element;
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import javax.swing.text.Highlighter;
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import javax.swing.text.JTextComponent;
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import javax.swing.text.Keymap;
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import javax.swing.text.Position;
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import javax.swing.text.View;
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import javax.swing.text.ViewFactory;
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/**
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* The abstract base class from which the UI classes for Swings text
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* components are derived. This provides most of the functionality for
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* the UI classes.
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*
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* @author original author unknown
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* @author Roman Kennke (roman@kennke.org)
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*/
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public abstract class BasicTextUI extends TextUI
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implements ViewFactory
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{
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/**
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* A {@link DefaultCaret} that implements {@link UIResource}.
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*/
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public static class BasicCaret extends DefaultCaret implements UIResource
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{
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public BasicCaret()
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{
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// Nothing to do here.
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}
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}
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/**
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* A {@link DefaultHighlighter} that implements {@link UIResource}.
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*/
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public static class BasicHighlighter extends DefaultHighlighter
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implements UIResource
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{
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public BasicHighlighter()
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{
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// Nothing to do here.
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}
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}
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private static class FocusHandler
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implements FocusListener
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{
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public void focusGained(FocusEvent e)
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{
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// Nothing to do here.
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}
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public void focusLost(FocusEvent e)
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{
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JTextComponent textComponent = (JTextComponent) e.getComponent();
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// Integrates Swing text components with the system clipboard:
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// The idea is that if one wants to copy text around X11-style
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// (select text and middle-click in the target component) the focus
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// will move to the new component which gives the old focus owner the
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// possibility to paste its selection into the clipboard.
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if (!e.isTemporary()
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&& textComponent.getSelectionStart()
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!= textComponent.getSelectionEnd())
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{
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SecurityManager sm = System.getSecurityManager();
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try
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{
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if (sm != null)
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sm.checkSystemClipboardAccess();
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Clipboard cb = Toolkit.getDefaultToolkit().getSystemSelection();
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if (cb != null)
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{
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StringSelection selection = new StringSelection(
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textComponent.getSelectedText());
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cb.setContents(selection, selection);
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}
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}
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catch (SecurityException se)
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{
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// Not allowed to access the clipboard: Ignore and
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// do not access it.
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}
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catch (HeadlessException he)
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{
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// There is no AWT: Ignore and do not access the
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// clipboard.
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}
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catch (IllegalStateException ise)
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{
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// Clipboard is currently unavaible.
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}
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}
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}
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}
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/**
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* This FocusListener triggers repaints on focus shift.
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*/
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private static FocusListener focusListener;
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/**
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* Receives notifications when properties of the text component change.
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*/
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private class Handler
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implements PropertyChangeListener, DocumentListener
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{
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/**
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* Notifies when a property of the text component changes.
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*
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* @param event the PropertyChangeEvent describing the change
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*/
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public void propertyChange(PropertyChangeEvent event)
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{
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if (event.getPropertyName().equals("document"))
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{
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// Document changed.
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Object oldValue = event.getOldValue();
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if (oldValue != null)
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{
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Document oldDoc = (Document) oldValue;
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oldDoc.removeDocumentListener(handler);
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}
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Object newValue = event.getNewValue();
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if (newValue != null)
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{
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Document newDoc = (Document) newValue;
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newDoc.addDocumentListener(handler);
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}
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modelChanged();
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}
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BasicTextUI.this.propertyChange(event);
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}
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/**
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* Notification about a document change event.
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*
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* @param ev the DocumentEvent describing the change
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*/
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public void changedUpdate(DocumentEvent ev)
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{
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// Updates are forwarded to the View even if 'getVisibleEditorRect'
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// method returns null. This means the View classes have to be
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// aware of that possibility.
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rootView.changedUpdate(ev, getVisibleEditorRect(),
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rootView.getViewFactory());
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}
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/**
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* Notification about a document insert event.
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*
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* @param ev the DocumentEvent describing the insertion
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*/
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public void insertUpdate(DocumentEvent ev)
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{
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// Updates are forwarded to the View even if 'getVisibleEditorRect'
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// method returns null. This means the View classes have to be
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// aware of that possibility.
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rootView.insertUpdate(ev, getVisibleEditorRect(),
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rootView.getViewFactory());
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}
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/**
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* Notification about a document removal event.
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*
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* @param ev the DocumentEvent describing the removal
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*/
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public void removeUpdate(DocumentEvent ev)
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{
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// Updates are forwarded to the View even if 'getVisibleEditorRect'
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// method returns null. This means the View classes have to be
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// aware of that possibility.
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rootView.removeUpdate(ev, getVisibleEditorRect(),
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rootView.getViewFactory());
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}
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}
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/**
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* This view forms the root of the View hierarchy. However, it delegates
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* most calls to another View which is the real root of the hierarchy.
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* The purpose is to make sure that all Views in the hierarchy, including
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* the (real) root have a well-defined parent to which they can delegate
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* calls like {@link #preferenceChanged}, {@link #getViewFactory} and
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* {@link #getContainer}.
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*/
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private class RootView extends View
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{
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/** The real root view. */
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private View view;
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/**
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* Creates a new RootView.
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*/
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public RootView()
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{
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super(null);
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}
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/**
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* Returns the ViewFactory for this RootView. If the current EditorKit
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* provides a ViewFactory, this is used. Otherwise the TextUI itself
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* is returned as a ViewFactory.
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*
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* @return the ViewFactory for this RootView
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*/
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public ViewFactory getViewFactory()
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{
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ViewFactory factory = null;
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EditorKit editorKit = BasicTextUI.this.getEditorKit(getComponent());
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factory = editorKit.getViewFactory();
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if (factory == null)
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factory = BasicTextUI.this;
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return factory;
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}
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/**
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* Indicates that the preferences of one of the child view has changed.
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* This calls revalidate on the text component.
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*
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* @param v the child view which's preference has changed
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* @param width <code>true</code> if the width preference has changed
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* @param height <code>true</code> if the height preference has changed
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*/
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public void preferenceChanged(View v, boolean width, boolean height)
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{
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textComponent.revalidate();
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}
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/**
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* Sets the real root view.
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*
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* @param v the root view to set
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*/
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public void setView(View v)
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{
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if (view != null)
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view.setParent(null);
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if (v != null)
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v.setParent(this);
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view = v;
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}
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/**
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* Returns the real root view, regardless of the index.
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*
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* @param index not used here
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*
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* @return the real root view, regardless of the index.
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*/
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public View getView(int index)
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{
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return view;
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}
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/**
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* Returns <code>1</code> since the RootView always contains one
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* child, that is the real root of the View hierarchy.
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*
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* @return <code>1</code> since the RootView always contains one
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* child, that is the real root of the View hierarchy
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*/
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public int getViewCount()
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{
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int count = 0;
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if (view != null)
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count = 1;
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return count;
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}
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/**
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* Returns the <code>Container</code> that contains this view. This
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* normally will be the text component that is managed by this TextUI.
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*
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* @return the <code>Container</code> that contains this view
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*/
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public Container getContainer()
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{
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return textComponent;
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}
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/**
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* Sets the size of the renderer. This is synchronized because that
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* potentially triggers layout and we don't want more than one thread
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* playing with the layout information.
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*/
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public synchronized void setSize(float w, float h)
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{
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if (view != null)
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view.setSize(w, h);
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}
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/**
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* Paints the view. This is delegated to the real root view.
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*
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* @param g the <code>Graphics</code> context to paint to
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* @param s the allocation for the View
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*/
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public void paint(Graphics g, Shape s)
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{
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|
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if (view != null)
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{
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|
|
Rectangle b = s instanceof Rectangle ? (Rectangle) s : s.getBounds();
|
387 |
|
|
setSize(b.width, b.height);
|
388 |
|
|
view.paint(g, s);
|
389 |
|
|
}
|
390 |
|
|
}
|
391 |
|
|
|
392 |
|
|
|
393 |
|
|
/**
|
394 |
|
|
* Maps a position in the document into the coordinate space of the View.
|
395 |
|
|
* The output rectangle usually reflects the font height but has a width
|
396 |
|
|
* of zero.
|
397 |
|
|
*
|
398 |
|
|
* This is delegated to the real root view.
|
399 |
|
|
*
|
400 |
|
|
* @param position the position of the character in the model
|
401 |
|
|
* @param a the area that is occupied by the view
|
402 |
|
|
* @param bias either {@link Position.Bias#Forward} or
|
403 |
|
|
* {@link Position.Bias#Backward} depending on the preferred
|
404 |
|
|
* direction bias. If <code>null</code> this defaults to
|
405 |
|
|
* <code>Position.Bias.Forward</code>
|
406 |
|
|
*
|
407 |
|
|
* @return a rectangle that gives the location of the document position
|
408 |
|
|
* inside the view coordinate space
|
409 |
|
|
*
|
410 |
|
|
* @throws BadLocationException if <code>pos</code> is invalid
|
411 |
|
|
* @throws IllegalArgumentException if b is not one of the above listed
|
412 |
|
|
* valid values
|
413 |
|
|
*/
|
414 |
|
|
public Shape modelToView(int position, Shape a, Position.Bias bias)
|
415 |
|
|
throws BadLocationException
|
416 |
|
|
{
|
417 |
|
|
return view.modelToView(position, a, bias);
|
418 |
|
|
}
|
419 |
|
|
|
420 |
|
|
/**
|
421 |
|
|
* Maps coordinates from the <code>View</code>'s space into a position
|
422 |
|
|
* in the document model.
|
423 |
|
|
*
|
424 |
|
|
* @param x the x coordinate in the view space
|
425 |
|
|
* @param y the y coordinate in the view space
|
426 |
|
|
* @param a the allocation of this <code>View</code>
|
427 |
|
|
* @param b the bias to use
|
428 |
|
|
*
|
429 |
|
|
* @return the position in the document that corresponds to the screen
|
430 |
|
|
* coordinates <code>x, y</code>
|
431 |
|
|
*/
|
432 |
|
|
public int viewToModel(float x, float y, Shape a, Position.Bias[] b)
|
433 |
|
|
{
|
434 |
|
|
return view.viewToModel(x, y, a, b);
|
435 |
|
|
}
|
436 |
|
|
|
437 |
|
|
/**
|
438 |
|
|
* Notification about text insertions. These are forwarded to the
|
439 |
|
|
* real root view.
|
440 |
|
|
*
|
441 |
|
|
* @param ev the DocumentEvent describing the change
|
442 |
|
|
* @param shape the current allocation of the view's display
|
443 |
|
|
* @param vf the ViewFactory to use for creating new Views
|
444 |
|
|
*/
|
445 |
|
|
public void insertUpdate(DocumentEvent ev, Shape shape, ViewFactory vf)
|
446 |
|
|
{
|
447 |
|
|
if (view != null)
|
448 |
|
|
view.insertUpdate(ev, shape, vf);
|
449 |
|
|
}
|
450 |
|
|
|
451 |
|
|
/**
|
452 |
|
|
* Notification about text removals. These are forwarded to the
|
453 |
|
|
* real root view.
|
454 |
|
|
*
|
455 |
|
|
* @param ev the DocumentEvent describing the change
|
456 |
|
|
* @param shape the current allocation of the view's display
|
457 |
|
|
* @param vf the ViewFactory to use for creating new Views
|
458 |
|
|
*/
|
459 |
|
|
public void removeUpdate(DocumentEvent ev, Shape shape, ViewFactory vf)
|
460 |
|
|
{
|
461 |
|
|
if (view != null)
|
462 |
|
|
view.removeUpdate(ev, shape, vf);
|
463 |
|
|
}
|
464 |
|
|
|
465 |
|
|
/**
|
466 |
|
|
* Notification about text changes. These are forwarded to the
|
467 |
|
|
* real root view.
|
468 |
|
|
*
|
469 |
|
|
* @param ev the DocumentEvent describing the change
|
470 |
|
|
* @param shape the current allocation of the view's display
|
471 |
|
|
* @param vf the ViewFactory to use for creating new Views
|
472 |
|
|
*/
|
473 |
|
|
public void changedUpdate(DocumentEvent ev, Shape shape, ViewFactory vf)
|
474 |
|
|
{
|
475 |
|
|
if (view != null)
|
476 |
|
|
view.changedUpdate(ev, shape, vf);
|
477 |
|
|
}
|
478 |
|
|
|
479 |
|
|
/**
|
480 |
|
|
* Returns the document position that is (visually) nearest to the given
|
481 |
|
|
* document position <code>pos</code> in the given direction <code>d</code>.
|
482 |
|
|
*
|
483 |
|
|
* @param pos the document position
|
484 |
|
|
* @param b the bias for <code>pos</code>
|
485 |
|
|
* @param a the allocation for the view
|
486 |
|
|
* @param d the direction, must be either {@link SwingConstants#NORTH},
|
487 |
|
|
* {@link SwingConstants#SOUTH}, {@link SwingConstants#WEST} or
|
488 |
|
|
* {@link SwingConstants#EAST}
|
489 |
|
|
* @param biasRet an array of {@link Position.Bias} that can hold at least
|
490 |
|
|
* one element, which is filled with the bias of the return position
|
491 |
|
|
* on method exit
|
492 |
|
|
*
|
493 |
|
|
* @return the document position that is (visually) nearest to the given
|
494 |
|
|
* document position <code>pos</code> in the given direction
|
495 |
|
|
* <code>d</code>
|
496 |
|
|
*
|
497 |
|
|
* @throws BadLocationException if <code>pos</code> is not a valid offset in
|
498 |
|
|
* the document model
|
499 |
|
|
*/
|
500 |
|
|
public int getNextVisualPositionFrom(int pos, Position.Bias b, Shape a,
|
501 |
|
|
int d, Position.Bias[] biasRet)
|
502 |
|
|
throws BadLocationException
|
503 |
|
|
{
|
504 |
|
|
return view.getNextVisualPositionFrom(pos, b, a, d, biasRet);
|
505 |
|
|
}
|
506 |
|
|
|
507 |
|
|
/**
|
508 |
|
|
* Returns the startOffset of this view, which is always the beginning
|
509 |
|
|
* of the document.
|
510 |
|
|
*
|
511 |
|
|
* @return the startOffset of this view
|
512 |
|
|
*/
|
513 |
|
|
public int getStartOffset()
|
514 |
|
|
{
|
515 |
|
|
return 0;
|
516 |
|
|
}
|
517 |
|
|
|
518 |
|
|
/**
|
519 |
|
|
* Returns the endOffset of this view, which is always the end
|
520 |
|
|
* of the document.
|
521 |
|
|
*
|
522 |
|
|
* @return the endOffset of this view
|
523 |
|
|
*/
|
524 |
|
|
public int getEndOffset()
|
525 |
|
|
{
|
526 |
|
|
return getDocument().getLength();
|
527 |
|
|
}
|
528 |
|
|
|
529 |
|
|
/**
|
530 |
|
|
* Returns the document associated with this view.
|
531 |
|
|
*
|
532 |
|
|
* @return the document associated with this view
|
533 |
|
|
*/
|
534 |
|
|
public Document getDocument()
|
535 |
|
|
{
|
536 |
|
|
return textComponent.getDocument();
|
537 |
|
|
}
|
538 |
|
|
|
539 |
|
|
/**
|
540 |
|
|
* Returns the attributes, which is null for the RootView.
|
541 |
|
|
*/
|
542 |
|
|
public AttributeSet getAttributes()
|
543 |
|
|
{
|
544 |
|
|
return null;
|
545 |
|
|
}
|
546 |
|
|
|
547 |
|
|
/**
|
548 |
|
|
* Overridden to forward to the view.
|
549 |
|
|
*/
|
550 |
|
|
public float getPreferredSpan(int axis)
|
551 |
|
|
{
|
552 |
|
|
// The RI returns 10 in the degenerate case.
|
553 |
|
|
float span = 10;
|
554 |
|
|
if (view != null)
|
555 |
|
|
span = view.getPreferredSpan(axis);
|
556 |
|
|
return span;
|
557 |
|
|
}
|
558 |
|
|
|
559 |
|
|
/**
|
560 |
|
|
* Overridden to forward to the real view.
|
561 |
|
|
*/
|
562 |
|
|
public float getMinimumSpan(int axis)
|
563 |
|
|
{
|
564 |
|
|
// The RI returns 10 in the degenerate case.
|
565 |
|
|
float span = 10;
|
566 |
|
|
if (view != null)
|
567 |
|
|
span = view.getMinimumSpan(axis);
|
568 |
|
|
return span;
|
569 |
|
|
}
|
570 |
|
|
|
571 |
|
|
/**
|
572 |
|
|
* Overridden to return Integer.MAX_VALUE.
|
573 |
|
|
*/
|
574 |
|
|
public float getMaximumSpan(int axis)
|
575 |
|
|
{
|
576 |
|
|
// The RI returns Integer.MAX_VALUE here, regardless of the real view's
|
577 |
|
|
// maximum size.
|
578 |
|
|
return Integer.MAX_VALUE;
|
579 |
|
|
}
|
580 |
|
|
}
|
581 |
|
|
|
582 |
|
|
/**
|
583 |
|
|
* The EditorKit used by this TextUI.
|
584 |
|
|
*/
|
585 |
|
|
private static EditorKit kit;
|
586 |
|
|
|
587 |
|
|
/**
|
588 |
|
|
* The combined event handler for text components.
|
589 |
|
|
*
|
590 |
|
|
* This is package private to avoid accessor methods.
|
591 |
|
|
*/
|
592 |
|
|
Handler handler;
|
593 |
|
|
|
594 |
|
|
/**
|
595 |
|
|
* The root view.
|
596 |
|
|
*
|
597 |
|
|
* This is package private to avoid accessor methods.
|
598 |
|
|
*/
|
599 |
|
|
RootView rootView;
|
600 |
|
|
|
601 |
|
|
/**
|
602 |
|
|
* The text component that we handle.
|
603 |
|
|
*/
|
604 |
|
|
JTextComponent textComponent;
|
605 |
|
|
|
606 |
|
|
/**
|
607 |
|
|
* Creates a new <code>BasicTextUI</code> instance.
|
608 |
|
|
*/
|
609 |
|
|
public BasicTextUI()
|
610 |
|
|
{
|
611 |
|
|
// Nothing to do here.
|
612 |
|
|
}
|
613 |
|
|
|
614 |
|
|
/**
|
615 |
|
|
* Creates a {@link Caret} that should be installed into the text component.
|
616 |
|
|
*
|
617 |
|
|
* @return a caret that should be installed into the text component
|
618 |
|
|
*/
|
619 |
|
|
protected Caret createCaret()
|
620 |
|
|
{
|
621 |
|
|
return new BasicCaret();
|
622 |
|
|
}
|
623 |
|
|
|
624 |
|
|
/**
|
625 |
|
|
* Creates a {@link Highlighter} that should be installed into the text
|
626 |
|
|
* component.
|
627 |
|
|
*
|
628 |
|
|
* @return a <code>Highlighter</code> for the text component
|
629 |
|
|
*/
|
630 |
|
|
protected Highlighter createHighlighter()
|
631 |
|
|
{
|
632 |
|
|
return new BasicHighlighter();
|
633 |
|
|
}
|
634 |
|
|
|
635 |
|
|
/**
|
636 |
|
|
* The text component that is managed by this UI.
|
637 |
|
|
*
|
638 |
|
|
* @return the text component that is managed by this UI
|
639 |
|
|
*/
|
640 |
|
|
protected final JTextComponent getComponent()
|
641 |
|
|
{
|
642 |
|
|
return textComponent;
|
643 |
|
|
}
|
644 |
|
|
|
645 |
|
|
/**
|
646 |
|
|
* Installs this UI on the text component.
|
647 |
|
|
*
|
648 |
|
|
* @param c the text component on which to install the UI
|
649 |
|
|
*/
|
650 |
|
|
public void installUI(final JComponent c)
|
651 |
|
|
{
|
652 |
|
|
textComponent = (JTextComponent) c;
|
653 |
|
|
|
654 |
|
|
if (rootView == null)
|
655 |
|
|
rootView = new RootView();
|
656 |
|
|
|
657 |
|
|
installDefaults();
|
658 |
|
|
installFixedDefaults();
|
659 |
|
|
|
660 |
|
|
// These listeners must be installed outside of installListeners(),
|
661 |
|
|
// because overriding installListeners() doesn't prevent installing
|
662 |
|
|
// these in the RI, but overriding isntallUI() does.
|
663 |
|
|
if (handler == null)
|
664 |
|
|
handler = new Handler();
|
665 |
|
|
textComponent.addPropertyChangeListener(handler);
|
666 |
|
|
Document doc = textComponent.getDocument();
|
667 |
|
|
if (doc == null)
|
668 |
|
|
{
|
669 |
|
|
// The Handler takes care of installing the necessary listeners
|
670 |
|
|
// on the document here.
|
671 |
|
|
doc = getEditorKit(textComponent).createDefaultDocument();
|
672 |
|
|
textComponent.setDocument(doc);
|
673 |
|
|
}
|
674 |
|
|
else
|
675 |
|
|
{
|
676 |
|
|
// Must install the document listener.
|
677 |
|
|
doc.addDocumentListener(handler);
|
678 |
|
|
modelChanged();
|
679 |
|
|
}
|
680 |
|
|
|
681 |
|
|
installListeners();
|
682 |
|
|
installKeyboardActions();
|
683 |
|
|
}
|
684 |
|
|
|
685 |
|
|
/**
|
686 |
|
|
* Installs UI defaults on the text components.
|
687 |
|
|
*/
|
688 |
|
|
protected void installDefaults()
|
689 |
|
|
{
|
690 |
|
|
String prefix = getPropertyPrefix();
|
691 |
|
|
// Install the standard properties.
|
692 |
|
|
LookAndFeel.installColorsAndFont(textComponent, prefix + ".background",
|
693 |
|
|
prefix + ".foreground", prefix + ".font");
|
694 |
|
|
LookAndFeel.installBorder(textComponent, prefix + ".border");
|
695 |
|
|
|
696 |
|
|
// Some additional text component only properties.
|
697 |
|
|
Color color = textComponent.getCaretColor();
|
698 |
|
|
if (color == null || color instanceof UIResource)
|
699 |
|
|
{
|
700 |
|
|
color = UIManager.getColor(prefix + ".caretForeground");
|
701 |
|
|
textComponent.setCaretColor(color);
|
702 |
|
|
}
|
703 |
|
|
|
704 |
|
|
// Fetch the colors for enabled/disabled text components.
|
705 |
|
|
color = textComponent.getDisabledTextColor();
|
706 |
|
|
if (color == null || color instanceof UIResource)
|
707 |
|
|
{
|
708 |
|
|
color = UIManager.getColor(prefix + ".inactiveForeground");
|
709 |
|
|
textComponent.setDisabledTextColor(color);
|
710 |
|
|
}
|
711 |
|
|
color = textComponent.getSelectedTextColor();
|
712 |
|
|
if (color == null || color instanceof UIResource)
|
713 |
|
|
{
|
714 |
|
|
color = UIManager.getColor(prefix + ".selectionForeground");
|
715 |
|
|
textComponent.setSelectedTextColor(color);
|
716 |
|
|
}
|
717 |
|
|
color = textComponent.getSelectionColor();
|
718 |
|
|
if (color == null || color instanceof UIResource)
|
719 |
|
|
{
|
720 |
|
|
color = UIManager.getColor(prefix + ".selectionBackground");
|
721 |
|
|
textComponent.setSelectionColor(color);
|
722 |
|
|
}
|
723 |
|
|
|
724 |
|
|
Insets margin = textComponent.getMargin();
|
725 |
|
|
if (margin == null || margin instanceof UIResource)
|
726 |
|
|
{
|
727 |
|
|
margin = UIManager.getInsets(prefix + ".margin");
|
728 |
|
|
textComponent.setMargin(margin);
|
729 |
|
|
}
|
730 |
|
|
|
731 |
|
|
}
|
732 |
|
|
|
733 |
|
|
/**
|
734 |
|
|
* Installs defaults that can't be overridden by overriding
|
735 |
|
|
* installDefaults().
|
736 |
|
|
*/
|
737 |
|
|
private void installFixedDefaults()
|
738 |
|
|
{
|
739 |
|
|
String prefix = getPropertyPrefix();
|
740 |
|
|
Caret caret = textComponent.getCaret();
|
741 |
|
|
if (caret == null || caret instanceof UIResource)
|
742 |
|
|
{
|
743 |
|
|
caret = createCaret();
|
744 |
|
|
textComponent.setCaret(caret);
|
745 |
|
|
caret.setBlinkRate(UIManager.getInt(prefix + ".caretBlinkRate"));
|
746 |
|
|
}
|
747 |
|
|
|
748 |
|
|
Highlighter highlighter = textComponent.getHighlighter();
|
749 |
|
|
if (highlighter == null || highlighter instanceof UIResource)
|
750 |
|
|
textComponent.setHighlighter(createHighlighter());
|
751 |
|
|
|
752 |
|
|
}
|
753 |
|
|
|
754 |
|
|
/**
|
755 |
|
|
* Install all listeners on the text component.
|
756 |
|
|
*/
|
757 |
|
|
protected void installListeners()
|
758 |
|
|
{
|
759 |
|
|
//
|
760 |
|
|
if (SystemProperties.getProperty("gnu.swing.text.no-xlike-clipboard")
|
761 |
|
|
== null)
|
762 |
|
|
{
|
763 |
|
|
if (focusListener == null)
|
764 |
|
|
focusListener = new FocusHandler();
|
765 |
|
|
textComponent.addFocusListener(focusListener);
|
766 |
|
|
}
|
767 |
|
|
}
|
768 |
|
|
|
769 |
|
|
/**
|
770 |
|
|
* Returns the name of the keymap for this type of TextUI.
|
771 |
|
|
*
|
772 |
|
|
* This is implemented so that the classname of this TextUI
|
773 |
|
|
* without the package prefix is returned. This way subclasses
|
774 |
|
|
* don't have to override this method.
|
775 |
|
|
*
|
776 |
|
|
* @return the name of the keymap for this TextUI
|
777 |
|
|
*/
|
778 |
|
|
protected String getKeymapName()
|
779 |
|
|
{
|
780 |
|
|
String fullClassName = getClass().getName();
|
781 |
|
|
int index = fullClassName.lastIndexOf('.');
|
782 |
|
|
String className = fullClassName.substring(index + 1);
|
783 |
|
|
return className;
|
784 |
|
|
}
|
785 |
|
|
|
786 |
|
|
/**
|
787 |
|
|
* Creates the {@link Keymap} that is installed on the text component.
|
788 |
|
|
*
|
789 |
|
|
* @return the {@link Keymap} that is installed on the text component
|
790 |
|
|
*/
|
791 |
|
|
protected Keymap createKeymap()
|
792 |
|
|
{
|
793 |
|
|
String keymapName = getKeymapName();
|
794 |
|
|
Keymap keymap = JTextComponent.getKeymap(keymapName);
|
795 |
|
|
if (keymap == null)
|
796 |
|
|
{
|
797 |
|
|
Keymap parentMap =
|
798 |
|
|
JTextComponent.getKeymap(JTextComponent.DEFAULT_KEYMAP);
|
799 |
|
|
keymap = JTextComponent.addKeymap(keymapName, parentMap);
|
800 |
|
|
Object val = UIManager.get(getPropertyPrefix() + ".keyBindings");
|
801 |
|
|
if (val != null && val instanceof JTextComponent.KeyBinding[])
|
802 |
|
|
{
|
803 |
|
|
JTextComponent.KeyBinding[] bindings =
|
804 |
|
|
(JTextComponent.KeyBinding[]) val;
|
805 |
|
|
JTextComponent.loadKeymap(keymap, bindings,
|
806 |
|
|
getComponent().getActions());
|
807 |
|
|
}
|
808 |
|
|
}
|
809 |
|
|
return keymap;
|
810 |
|
|
}
|
811 |
|
|
|
812 |
|
|
/**
|
813 |
|
|
* Installs the keyboard actions on the text components.
|
814 |
|
|
*/
|
815 |
|
|
protected void installKeyboardActions()
|
816 |
|
|
{
|
817 |
|
|
// This is only there for backwards compatibility.
|
818 |
|
|
textComponent.setKeymap(createKeymap());
|
819 |
|
|
|
820 |
|
|
// load any bindings for the newer InputMap / ActionMap interface
|
821 |
|
|
SwingUtilities.replaceUIInputMap(textComponent, JComponent.WHEN_FOCUSED,
|
822 |
|
|
getInputMap());
|
823 |
|
|
SwingUtilities.replaceUIActionMap(textComponent, getActionMap());
|
824 |
|
|
}
|
825 |
|
|
|
826 |
|
|
/**
|
827 |
|
|
* Creates an ActionMap to be installed on the text component.
|
828 |
|
|
*
|
829 |
|
|
* @return an ActionMap to be installed on the text component
|
830 |
|
|
*/
|
831 |
|
|
private ActionMap getActionMap()
|
832 |
|
|
{
|
833 |
|
|
// Note: There are no .actionMap entries in the standard L&Fs. However,
|
834 |
|
|
// with the RI it is possible to install action maps via such keys, so
|
835 |
|
|
// we must load them too. It can be observed that when there is no
|
836 |
|
|
// .actionMap entry in the UIManager, one gets installed after a text
|
837 |
|
|
// component of that type has been loaded.
|
838 |
|
|
String prefix = getPropertyPrefix();
|
839 |
|
|
String amName = prefix + ".actionMap";
|
840 |
|
|
ActionMap am = (ActionMap) UIManager.get(amName);
|
841 |
|
|
if (am == null)
|
842 |
|
|
{
|
843 |
|
|
am = createActionMap();
|
844 |
|
|
UIManager.put(amName, am);
|
845 |
|
|
}
|
846 |
|
|
|
847 |
|
|
ActionMap map = new ActionMapUIResource();
|
848 |
|
|
map.setParent(am);
|
849 |
|
|
|
850 |
|
|
return map;
|
851 |
|
|
}
|
852 |
|
|
|
853 |
|
|
/**
|
854 |
|
|
* Creates a default ActionMap for text components that have no UI default
|
855 |
|
|
* for this (the standard for the built-in L&Fs). The ActionMap is copied
|
856 |
|
|
* from the text component's getActions() method.
|
857 |
|
|
*
|
858 |
|
|
* @returna default ActionMap
|
859 |
|
|
*/
|
860 |
|
|
private ActionMap createActionMap()
|
861 |
|
|
{
|
862 |
|
|
ActionMap am = new ActionMapUIResource();
|
863 |
|
|
Action[] actions = textComponent.getActions();
|
864 |
|
|
for (int i = actions.length - 1; i >= 0; i--)
|
865 |
|
|
{
|
866 |
|
|
Action action = actions[i];
|
867 |
|
|
am.put(action.getValue(Action.NAME), action);
|
868 |
|
|
}
|
869 |
|
|
// Add TransferHandler's actions here. They don't seem to be in the
|
870 |
|
|
// JTextComponent's default actions, and I can't make up a better place
|
871 |
|
|
// to add them.
|
872 |
|
|
Action copyAction = TransferHandler.getCopyAction();
|
873 |
|
|
am.put(copyAction.getValue(Action.NAME), copyAction);
|
874 |
|
|
Action cutAction = TransferHandler.getCutAction();
|
875 |
|
|
am.put(cutAction.getValue(Action.NAME), cutAction);
|
876 |
|
|
Action pasteAction = TransferHandler.getPasteAction();
|
877 |
|
|
am.put(pasteAction.getValue(Action.NAME), pasteAction);
|
878 |
|
|
|
879 |
|
|
return am;
|
880 |
|
|
}
|
881 |
|
|
|
882 |
|
|
/**
|
883 |
|
|
* Gets the input map for the specified <code>condition</code>.
|
884 |
|
|
*
|
885 |
|
|
* @return the InputMap for the specified condition
|
886 |
|
|
*/
|
887 |
|
|
private InputMap getInputMap()
|
888 |
|
|
{
|
889 |
|
|
InputMap im = new InputMapUIResource();
|
890 |
|
|
String prefix = getPropertyPrefix();
|
891 |
|
|
InputMap shared =
|
892 |
|
|
(InputMap) SharedUIDefaults.get(prefix + ".focusInputMap");
|
893 |
|
|
if (shared != null)
|
894 |
|
|
im.setParent(shared);
|
895 |
|
|
return im;
|
896 |
|
|
}
|
897 |
|
|
|
898 |
|
|
/**
|
899 |
|
|
* Uninstalls this TextUI from the text component.
|
900 |
|
|
*
|
901 |
|
|
* @param component the text component to uninstall the UI from
|
902 |
|
|
*/
|
903 |
|
|
public void uninstallUI(final JComponent component)
|
904 |
|
|
{
|
905 |
|
|
textComponent.removePropertyChangeListener(handler);
|
906 |
|
|
textComponent.getDocument().removeDocumentListener(handler);
|
907 |
|
|
rootView.setView(null);
|
908 |
|
|
|
909 |
|
|
uninstallDefaults();
|
910 |
|
|
uninstallFixedDefaults();
|
911 |
|
|
uninstallListeners();
|
912 |
|
|
uninstallKeyboardActions();
|
913 |
|
|
|
914 |
|
|
textComponent = null;
|
915 |
|
|
}
|
916 |
|
|
|
917 |
|
|
/**
|
918 |
|
|
* Uninstalls all default properties that have previously been installed by
|
919 |
|
|
* this UI.
|
920 |
|
|
*/
|
921 |
|
|
protected void uninstallDefaults()
|
922 |
|
|
{
|
923 |
|
|
if (textComponent.getCaretColor() instanceof UIResource)
|
924 |
|
|
textComponent.setCaretColor(null);
|
925 |
|
|
if (textComponent.getSelectionColor() instanceof UIResource)
|
926 |
|
|
textComponent.setSelectionColor(null);
|
927 |
|
|
if (textComponent.getDisabledTextColor() instanceof UIResource)
|
928 |
|
|
textComponent.setDisabledTextColor(null);
|
929 |
|
|
if (textComponent.getSelectedTextColor() instanceof UIResource)
|
930 |
|
|
textComponent.setSelectedTextColor(null);
|
931 |
|
|
LookAndFeel.uninstallBorder(textComponent);
|
932 |
|
|
if (textComponent.getMargin() instanceof UIResource)
|
933 |
|
|
textComponent.setMargin(null);
|
934 |
|
|
}
|
935 |
|
|
|
936 |
|
|
/**
|
937 |
|
|
* Uninstalls additional fixed defaults that were installed
|
938 |
|
|
* by installFixedDefaults().
|
939 |
|
|
*/
|
940 |
|
|
private void uninstallFixedDefaults()
|
941 |
|
|
{
|
942 |
|
|
if (textComponent.getCaret() instanceof UIResource)
|
943 |
|
|
textComponent.setCaret(null);
|
944 |
|
|
if (textComponent.getHighlighter() instanceof UIResource)
|
945 |
|
|
textComponent.setHighlighter(null);
|
946 |
|
|
}
|
947 |
|
|
|
948 |
|
|
/**
|
949 |
|
|
* Uninstalls all listeners that have previously been installed by
|
950 |
|
|
* this UI.
|
951 |
|
|
*/
|
952 |
|
|
protected void uninstallListeners()
|
953 |
|
|
{
|
954 |
|
|
// Don't nullify the focusListener field, as it is static and shared
|
955 |
|
|
// between components.
|
956 |
|
|
if (focusListener != null)
|
957 |
|
|
textComponent.removeFocusListener(focusListener);
|
958 |
|
|
}
|
959 |
|
|
|
960 |
|
|
/**
|
961 |
|
|
* Uninstalls all keyboard actions that have previously been installed by
|
962 |
|
|
* this UI.
|
963 |
|
|
*/
|
964 |
|
|
protected void uninstallKeyboardActions()
|
965 |
|
|
{
|
966 |
|
|
SwingUtilities.replaceUIInputMap(textComponent, JComponent.WHEN_FOCUSED,
|
967 |
|
|
null);
|
968 |
|
|
SwingUtilities.replaceUIActionMap(textComponent, null);
|
969 |
|
|
}
|
970 |
|
|
|
971 |
|
|
/**
|
972 |
|
|
* Returns the property prefix by which the text component's UIDefaults
|
973 |
|
|
* are looked up.
|
974 |
|
|
*
|
975 |
|
|
* @return the property prefix by which the text component's UIDefaults
|
976 |
|
|
* are looked up
|
977 |
|
|
*/
|
978 |
|
|
protected abstract String getPropertyPrefix();
|
979 |
|
|
|
980 |
|
|
/**
|
981 |
|
|
* Returns the preferred size of the text component.
|
982 |
|
|
*
|
983 |
|
|
* @param c not used here
|
984 |
|
|
*
|
985 |
|
|
* @return the preferred size of the text component
|
986 |
|
|
*/
|
987 |
|
|
public Dimension getPreferredSize(JComponent c)
|
988 |
|
|
{
|
989 |
|
|
Dimension d = c.getSize();
|
990 |
|
|
Insets i = c.getInsets();
|
991 |
|
|
// We need to lock here, since we require the view hierarchy to _not_
|
992 |
|
|
// change in between.
|
993 |
|
|
float w;
|
994 |
|
|
float h;
|
995 |
|
|
Document doc = textComponent.getDocument();
|
996 |
|
|
if (doc instanceof AbstractDocument)
|
997 |
|
|
((AbstractDocument) doc).readLock();
|
998 |
|
|
try
|
999 |
|
|
{
|
1000 |
|
|
if (d.width > (i.left + i.right) && d.height > (i.top + i.bottom))
|
1001 |
|
|
{
|
1002 |
|
|
rootView.setSize(d.width - i.left - i.right,
|
1003 |
|
|
d.height - i.top - i.bottom);
|
1004 |
|
|
}
|
1005 |
|
|
else
|
1006 |
|
|
{
|
1007 |
|
|
// Not laid out yet. Force some pseudo size.
|
1008 |
|
|
rootView.setSize(Integer.MAX_VALUE, Integer.MAX_VALUE);
|
1009 |
|
|
}
|
1010 |
|
|
w = rootView.getPreferredSpan(View.X_AXIS);
|
1011 |
|
|
h = rootView.getPreferredSpan(View.Y_AXIS);
|
1012 |
|
|
}
|
1013 |
|
|
finally
|
1014 |
|
|
{
|
1015 |
|
|
if (doc instanceof AbstractDocument)
|
1016 |
|
|
((AbstractDocument) doc).readUnlock();
|
1017 |
|
|
}
|
1018 |
|
|
Dimension size = new Dimension((int) w + i.left + i.right,
|
1019 |
|
|
(int) h + i.top + i.bottom);
|
1020 |
|
|
return size;
|
1021 |
|
|
}
|
1022 |
|
|
|
1023 |
|
|
/**
|
1024 |
|
|
* Returns the maximum size for text components that use this UI.
|
1025 |
|
|
*
|
1026 |
|
|
* This returns (Integer.MAX_VALUE, Integer.MAX_VALUE).
|
1027 |
|
|
*
|
1028 |
|
|
* @param c not used here
|
1029 |
|
|
*
|
1030 |
|
|
* @return the maximum size for text components that use this UI
|
1031 |
|
|
*/
|
1032 |
|
|
public Dimension getMaximumSize(JComponent c)
|
1033 |
|
|
{
|
1034 |
|
|
Dimension d = new Dimension();
|
1035 |
|
|
Insets i = c.getInsets();
|
1036 |
|
|
Document doc = textComponent.getDocument();
|
1037 |
|
|
// We need to lock here, since we require the view hierarchy to _not_
|
1038 |
|
|
// change in between.
|
1039 |
|
|
if (doc instanceof AbstractDocument)
|
1040 |
|
|
((AbstractDocument) doc).readLock();
|
1041 |
|
|
try
|
1042 |
|
|
{
|
1043 |
|
|
// Check for overflow here.
|
1044 |
|
|
d.width = (int) Math.min((long) rootView.getMaximumSpan(View.X_AXIS)
|
1045 |
|
|
+ i.left + i.right, Integer.MAX_VALUE);
|
1046 |
|
|
d.height = (int) Math.min((long) rootView.getMaximumSpan(View.Y_AXIS)
|
1047 |
|
|
+ i.top + i.bottom, Integer.MAX_VALUE);
|
1048 |
|
|
}
|
1049 |
|
|
finally
|
1050 |
|
|
{
|
1051 |
|
|
if (doc instanceof AbstractDocument)
|
1052 |
|
|
((AbstractDocument) doc).readUnlock();
|
1053 |
|
|
}
|
1054 |
|
|
return d;
|
1055 |
|
|
}
|
1056 |
|
|
|
1057 |
|
|
/**
|
1058 |
|
|
* Returns the minimum size for text components. This returns the size
|
1059 |
|
|
* of the component's insets.
|
1060 |
|
|
*
|
1061 |
|
|
* @return the minimum size for text components
|
1062 |
|
|
*/
|
1063 |
|
|
public Dimension getMinimumSize(JComponent c)
|
1064 |
|
|
{
|
1065 |
|
|
Dimension d = new Dimension();
|
1066 |
|
|
Document doc = textComponent.getDocument();
|
1067 |
|
|
// We need to lock here, since we require the view hierarchy to _not_
|
1068 |
|
|
// change in between.
|
1069 |
|
|
if (doc instanceof AbstractDocument)
|
1070 |
|
|
((AbstractDocument) doc).readLock();
|
1071 |
|
|
try
|
1072 |
|
|
{
|
1073 |
|
|
d.width = (int) rootView.getMinimumSpan(View.X_AXIS);
|
1074 |
|
|
d.height = (int) rootView.getMinimumSpan(View.Y_AXIS);
|
1075 |
|
|
}
|
1076 |
|
|
finally
|
1077 |
|
|
{
|
1078 |
|
|
if (doc instanceof AbstractDocument)
|
1079 |
|
|
((AbstractDocument) doc).readUnlock();
|
1080 |
|
|
}
|
1081 |
|
|
Insets i = c.getInsets();
|
1082 |
|
|
d.width += i.left + i.right;
|
1083 |
|
|
d.height += i.top + i.bottom;
|
1084 |
|
|
return d;
|
1085 |
|
|
}
|
1086 |
|
|
|
1087 |
|
|
/**
|
1088 |
|
|
* Paints the text component. This acquires a read lock on the model and then
|
1089 |
|
|
* calls {@link #paintSafely(Graphics)} in order to actually perform the
|
1090 |
|
|
* painting.
|
1091 |
|
|
*
|
1092 |
|
|
* @param g the <code>Graphics</code> context to paint to
|
1093 |
|
|
* @param c not used here
|
1094 |
|
|
*/
|
1095 |
|
|
public final void paint(Graphics g, JComponent c)
|
1096 |
|
|
{
|
1097 |
|
|
try
|
1098 |
|
|
{
|
1099 |
|
|
Document doc = textComponent.getDocument();
|
1100 |
|
|
if (doc instanceof AbstractDocument)
|
1101 |
|
|
{
|
1102 |
|
|
AbstractDocument aDoc = (AbstractDocument) doc;
|
1103 |
|
|
aDoc.readLock();
|
1104 |
|
|
}
|
1105 |
|
|
paintSafely(g);
|
1106 |
|
|
}
|
1107 |
|
|
finally
|
1108 |
|
|
{
|
1109 |
|
|
Document doc = textComponent.getDocument();
|
1110 |
|
|
if (doc instanceof AbstractDocument)
|
1111 |
|
|
{
|
1112 |
|
|
AbstractDocument aDoc = (AbstractDocument) doc;
|
1113 |
|
|
aDoc.readUnlock();
|
1114 |
|
|
}
|
1115 |
|
|
}
|
1116 |
|
|
}
|
1117 |
|
|
|
1118 |
|
|
/**
|
1119 |
|
|
* This paints the text component while beeing sure that the model is not
|
1120 |
|
|
* modified while painting.
|
1121 |
|
|
*
|
1122 |
|
|
* The following is performed in this order:
|
1123 |
|
|
* <ol>
|
1124 |
|
|
* <li>If the text component is opaque, the background is painted by
|
1125 |
|
|
* calling {@link #paintBackground(Graphics)}.</li>
|
1126 |
|
|
* <li>If there is a highlighter, the highlighter is painted.</li>
|
1127 |
|
|
* <li>The view hierarchy is painted.</li>
|
1128 |
|
|
* <li>The Caret is painter.</li>
|
1129 |
|
|
* </ol>
|
1130 |
|
|
*
|
1131 |
|
|
* @param g the <code>Graphics</code> context to paint to
|
1132 |
|
|
*/
|
1133 |
|
|
protected void paintSafely(Graphics g)
|
1134 |
|
|
{
|
1135 |
|
|
Caret caret = textComponent.getCaret();
|
1136 |
|
|
Highlighter highlighter = textComponent.getHighlighter();
|
1137 |
|
|
|
1138 |
|
|
if (textComponent.isOpaque())
|
1139 |
|
|
paintBackground(g);
|
1140 |
|
|
|
1141 |
|
|
// Try painting with the highlighter without checking whether there
|
1142 |
|
|
// is a selection because a highlighter can be used to do more than
|
1143 |
|
|
// marking selected text.
|
1144 |
|
|
if (highlighter != null)
|
1145 |
|
|
{
|
1146 |
|
|
// Handle restoring of the color here to prevent
|
1147 |
|
|
// drawing problems when the Highlighter implementor
|
1148 |
|
|
// forgets to restore it.
|
1149 |
|
|
Color oldColor = g.getColor();
|
1150 |
|
|
highlighter.paint(g);
|
1151 |
|
|
g.setColor(oldColor);
|
1152 |
|
|
}
|
1153 |
|
|
|
1154 |
|
|
rootView.paint(g, getVisibleEditorRect());
|
1155 |
|
|
|
1156 |
|
|
if (caret != null && textComponent.hasFocus())
|
1157 |
|
|
caret.paint(g);
|
1158 |
|
|
}
|
1159 |
|
|
|
1160 |
|
|
/**
|
1161 |
|
|
* Paints the background of the text component.
|
1162 |
|
|
*
|
1163 |
|
|
* @param g the <code>Graphics</code> context to paint to
|
1164 |
|
|
*/
|
1165 |
|
|
protected void paintBackground(Graphics g)
|
1166 |
|
|
{
|
1167 |
|
|
Color old = g.getColor();
|
1168 |
|
|
g.setColor(textComponent.getBackground());
|
1169 |
|
|
g.fillRect(0, 0, textComponent.getWidth(), textComponent.getHeight());
|
1170 |
|
|
g.setColor(old);
|
1171 |
|
|
}
|
1172 |
|
|
|
1173 |
|
|
/**
|
1174 |
|
|
* Overridden for better control over background painting. This now simply
|
1175 |
|
|
* calls {@link #paint} and this delegates the background painting to
|
1176 |
|
|
* {@link #paintBackground}.
|
1177 |
|
|
*
|
1178 |
|
|
* @param g the graphics to use
|
1179 |
|
|
* @param c the component to be painted
|
1180 |
|
|
*/
|
1181 |
|
|
public void update(Graphics g, JComponent c)
|
1182 |
|
|
{
|
1183 |
|
|
paint(g, c);
|
1184 |
|
|
}
|
1185 |
|
|
|
1186 |
|
|
/**
|
1187 |
|
|
* Marks the specified range inside the text component's model as
|
1188 |
|
|
* damaged and queues a repaint request.
|
1189 |
|
|
*
|
1190 |
|
|
* @param t the text component
|
1191 |
|
|
* @param p0 the start location inside the document model of the range that
|
1192 |
|
|
* is damaged
|
1193 |
|
|
* @param p1 the end location inside the document model of the range that
|
1194 |
|
|
* is damaged
|
1195 |
|
|
*/
|
1196 |
|
|
public void damageRange(JTextComponent t, int p0, int p1)
|
1197 |
|
|
{
|
1198 |
|
|
damageRange(t, p0, p1, Position.Bias.Forward, Position.Bias.Backward);
|
1199 |
|
|
}
|
1200 |
|
|
|
1201 |
|
|
/**
|
1202 |
|
|
* Marks the specified range inside the text component's model as
|
1203 |
|
|
* damaged and queues a repaint request. This variant of this method
|
1204 |
|
|
* allows a {@link Position.Bias} object to be specified for the start
|
1205 |
|
|
* and end location of the range.
|
1206 |
|
|
*
|
1207 |
|
|
* @param t the text component
|
1208 |
|
|
* @param p0 the start location inside the document model of the range that
|
1209 |
|
|
* is damaged
|
1210 |
|
|
* @param p1 the end location inside the document model of the range that
|
1211 |
|
|
* is damaged
|
1212 |
|
|
* @param firstBias the bias for the start location
|
1213 |
|
|
* @param secondBias the bias for the end location
|
1214 |
|
|
*/
|
1215 |
|
|
public void damageRange(JTextComponent t, int p0, int p1,
|
1216 |
|
|
Position.Bias firstBias, Position.Bias secondBias)
|
1217 |
|
|
{
|
1218 |
|
|
Rectangle alloc = getVisibleEditorRect();
|
1219 |
|
|
if (alloc != null)
|
1220 |
|
|
{
|
1221 |
|
|
Document doc = t.getDocument();
|
1222 |
|
|
|
1223 |
|
|
// Acquire lock here to avoid structural changes in between.
|
1224 |
|
|
if (doc instanceof AbstractDocument)
|
1225 |
|
|
((AbstractDocument) doc).readLock();
|
1226 |
|
|
try
|
1227 |
|
|
{
|
1228 |
|
|
rootView.setSize(alloc.width, alloc.height);
|
1229 |
|
|
Shape damage = rootView.modelToView(p0, firstBias, p1, secondBias,
|
1230 |
|
|
alloc);
|
1231 |
|
|
Rectangle r = damage instanceof Rectangle ? (Rectangle) damage
|
1232 |
|
|
: damage.getBounds();
|
1233 |
|
|
textComponent.repaint(r.x, r.y, r.width, r.height);
|
1234 |
|
|
}
|
1235 |
|
|
catch (BadLocationException ex)
|
1236 |
|
|
{
|
1237 |
|
|
// Lets ignore this as it causes no serious problems.
|
1238 |
|
|
// For debugging, comment this out.
|
1239 |
|
|
// ex.printStackTrace();
|
1240 |
|
|
}
|
1241 |
|
|
finally
|
1242 |
|
|
{
|
1243 |
|
|
// Release lock.
|
1244 |
|
|
if (doc instanceof AbstractDocument)
|
1245 |
|
|
((AbstractDocument) doc).readUnlock();
|
1246 |
|
|
}
|
1247 |
|
|
}
|
1248 |
|
|
}
|
1249 |
|
|
|
1250 |
|
|
/**
|
1251 |
|
|
* Returns the {@link EditorKit} used for the text component that is managed
|
1252 |
|
|
* by this UI.
|
1253 |
|
|
*
|
1254 |
|
|
* @param t the text component
|
1255 |
|
|
*
|
1256 |
|
|
* @return the {@link EditorKit} used for the text component that is managed
|
1257 |
|
|
* by this UI
|
1258 |
|
|
*/
|
1259 |
|
|
public EditorKit getEditorKit(JTextComponent t)
|
1260 |
|
|
{
|
1261 |
|
|
if (kit == null)
|
1262 |
|
|
kit = new DefaultEditorKit();
|
1263 |
|
|
return kit;
|
1264 |
|
|
}
|
1265 |
|
|
|
1266 |
|
|
/**
|
1267 |
|
|
* Gets the next position inside the document model that is visible on
|
1268 |
|
|
* screen, starting from <code>pos</code>.
|
1269 |
|
|
*
|
1270 |
|
|
* @param t the text component
|
1271 |
|
|
* @param pos the start positionn
|
1272 |
|
|
* @param b the bias for pos
|
1273 |
|
|
* @param direction the search direction
|
1274 |
|
|
* @param biasRet filled by the method to indicate the bias of the return
|
1275 |
|
|
* value
|
1276 |
|
|
*
|
1277 |
|
|
* @return the next position inside the document model that is visible on
|
1278 |
|
|
* screen
|
1279 |
|
|
*/
|
1280 |
|
|
public int getNextVisualPositionFrom(JTextComponent t, int pos,
|
1281 |
|
|
Position.Bias b, int direction,
|
1282 |
|
|
Position.Bias[] biasRet)
|
1283 |
|
|
throws BadLocationException
|
1284 |
|
|
{
|
1285 |
|
|
int offset = -1;
|
1286 |
|
|
Document doc = textComponent.getDocument();
|
1287 |
|
|
if (doc instanceof AbstractDocument)
|
1288 |
|
|
((AbstractDocument) doc).readLock();
|
1289 |
|
|
try
|
1290 |
|
|
{
|
1291 |
|
|
Rectangle alloc = getVisibleEditorRect();
|
1292 |
|
|
if (alloc != null)
|
1293 |
|
|
{
|
1294 |
|
|
rootView.setSize(alloc.width, alloc.height);
|
1295 |
|
|
offset = rootView.getNextVisualPositionFrom(pos, b, alloc,
|
1296 |
|
|
direction, biasRet);
|
1297 |
|
|
}
|
1298 |
|
|
}
|
1299 |
|
|
finally
|
1300 |
|
|
{
|
1301 |
|
|
if (doc instanceof AbstractDocument)
|
1302 |
|
|
((AbstractDocument) doc).readUnlock();
|
1303 |
|
|
}
|
1304 |
|
|
return offset;
|
1305 |
|
|
}
|
1306 |
|
|
|
1307 |
|
|
/**
|
1308 |
|
|
* Returns the root {@link View} of a text component.
|
1309 |
|
|
*
|
1310 |
|
|
* @return the root {@link View} of a text component
|
1311 |
|
|
*/
|
1312 |
|
|
public View getRootView(JTextComponent t)
|
1313 |
|
|
{
|
1314 |
|
|
return rootView;
|
1315 |
|
|
}
|
1316 |
|
|
|
1317 |
|
|
/**
|
1318 |
|
|
* Maps a position in the document into the coordinate space of the View.
|
1319 |
|
|
* The output rectangle usually reflects the font height but has a width
|
1320 |
|
|
* of zero. A bias of {@link Position.Bias#Forward} is used in this method.
|
1321 |
|
|
*
|
1322 |
|
|
* @param t the text component
|
1323 |
|
|
* @param pos the position of the character in the model
|
1324 |
|
|
*
|
1325 |
|
|
* @return a rectangle that gives the location of the document position
|
1326 |
|
|
* inside the view coordinate space
|
1327 |
|
|
*
|
1328 |
|
|
* @throws BadLocationException if <code>pos</code> is invalid
|
1329 |
|
|
* @throws IllegalArgumentException if b is not one of the above listed
|
1330 |
|
|
* valid values
|
1331 |
|
|
*/
|
1332 |
|
|
public Rectangle modelToView(JTextComponent t, int pos)
|
1333 |
|
|
throws BadLocationException
|
1334 |
|
|
{
|
1335 |
|
|
return modelToView(t, pos, Position.Bias.Forward);
|
1336 |
|
|
}
|
1337 |
|
|
|
1338 |
|
|
/**
|
1339 |
|
|
* Maps a position in the document into the coordinate space of the View.
|
1340 |
|
|
* The output rectangle usually reflects the font height but has a width
|
1341 |
|
|
* of zero.
|
1342 |
|
|
*
|
1343 |
|
|
* @param t the text component
|
1344 |
|
|
* @param pos the position of the character in the model
|
1345 |
|
|
* @param bias either {@link Position.Bias#Forward} or
|
1346 |
|
|
* {@link Position.Bias#Backward} depending on the preferred
|
1347 |
|
|
* direction bias. If <code>null</code> this defaults to
|
1348 |
|
|
* <code>Position.Bias.Forward</code>
|
1349 |
|
|
*
|
1350 |
|
|
* @return a rectangle that gives the location of the document position
|
1351 |
|
|
* inside the view coordinate space
|
1352 |
|
|
*
|
1353 |
|
|
* @throws BadLocationException if <code>pos</code> is invalid
|
1354 |
|
|
* @throws IllegalArgumentException if b is not one of the above listed
|
1355 |
|
|
* valid values
|
1356 |
|
|
*/
|
1357 |
|
|
public Rectangle modelToView(JTextComponent t, int pos, Position.Bias bias)
|
1358 |
|
|
throws BadLocationException
|
1359 |
|
|
{
|
1360 |
|
|
// We need to read-lock here because we depend on the document
|
1361 |
|
|
// structure not beeing changed in between.
|
1362 |
|
|
Document doc = textComponent.getDocument();
|
1363 |
|
|
if (doc instanceof AbstractDocument)
|
1364 |
|
|
((AbstractDocument) doc).readLock();
|
1365 |
|
|
Rectangle rect = null;
|
1366 |
|
|
try
|
1367 |
|
|
{
|
1368 |
|
|
Rectangle r = getVisibleEditorRect();
|
1369 |
|
|
if (r != null)
|
1370 |
|
|
{
|
1371 |
|
|
rootView.setSize(r.width, r.height);
|
1372 |
|
|
Shape s = rootView.modelToView(pos, r, bias);
|
1373 |
|
|
if (s != null)
|
1374 |
|
|
rect = s.getBounds();
|
1375 |
|
|
}
|
1376 |
|
|
}
|
1377 |
|
|
finally
|
1378 |
|
|
{
|
1379 |
|
|
if (doc instanceof AbstractDocument)
|
1380 |
|
|
((AbstractDocument) doc).readUnlock();
|
1381 |
|
|
}
|
1382 |
|
|
return rect;
|
1383 |
|
|
}
|
1384 |
|
|
|
1385 |
|
|
/**
|
1386 |
|
|
* Maps a point in the <code>View</code> coordinate space to a position
|
1387 |
|
|
* inside a document model.
|
1388 |
|
|
*
|
1389 |
|
|
* @param t the text component
|
1390 |
|
|
* @param pt the point to be mapped
|
1391 |
|
|
*
|
1392 |
|
|
* @return the position inside the document model that corresponds to
|
1393 |
|
|
* <code>pt</code>
|
1394 |
|
|
*/
|
1395 |
|
|
public int viewToModel(JTextComponent t, Point pt)
|
1396 |
|
|
{
|
1397 |
|
|
return viewToModel(t, pt, new Position.Bias[1]);
|
1398 |
|
|
}
|
1399 |
|
|
|
1400 |
|
|
/**
|
1401 |
|
|
* Maps a point in the <code>View</code> coordinate space to a position
|
1402 |
|
|
* inside a document model.
|
1403 |
|
|
*
|
1404 |
|
|
* @param t the text component
|
1405 |
|
|
* @param pt the point to be mapped
|
1406 |
|
|
* @param biasReturn filled in by the method to indicate the bias of the
|
1407 |
|
|
* return value
|
1408 |
|
|
*
|
1409 |
|
|
* @return the position inside the document model that corresponds to
|
1410 |
|
|
* <code>pt</code>
|
1411 |
|
|
*/
|
1412 |
|
|
public int viewToModel(JTextComponent t, Point pt, Position.Bias[] biasReturn)
|
1413 |
|
|
{
|
1414 |
|
|
int offset = -1;
|
1415 |
|
|
Document doc = textComponent.getDocument();
|
1416 |
|
|
if (doc instanceof AbstractDocument)
|
1417 |
|
|
((AbstractDocument) doc).readLock();
|
1418 |
|
|
try
|
1419 |
|
|
{
|
1420 |
|
|
Rectangle alloc = getVisibleEditorRect();
|
1421 |
|
|
if (alloc != null)
|
1422 |
|
|
{
|
1423 |
|
|
rootView.setSize(alloc.width, alloc.height);
|
1424 |
|
|
offset = rootView.viewToModel(pt.x, pt.y, alloc, biasReturn);
|
1425 |
|
|
}
|
1426 |
|
|
}
|
1427 |
|
|
finally
|
1428 |
|
|
{
|
1429 |
|
|
if (doc instanceof AbstractDocument)
|
1430 |
|
|
((AbstractDocument) doc).readUnlock();
|
1431 |
|
|
}
|
1432 |
|
|
return offset;
|
1433 |
|
|
}
|
1434 |
|
|
|
1435 |
|
|
/**
|
1436 |
|
|
* Creates a {@link View} for the specified {@link Element}.
|
1437 |
|
|
*
|
1438 |
|
|
* @param elem the <code>Element</code> to create a <code>View</code> for
|
1439 |
|
|
*
|
1440 |
|
|
* @see ViewFactory
|
1441 |
|
|
*/
|
1442 |
|
|
public View create(Element elem)
|
1443 |
|
|
{
|
1444 |
|
|
// Subclasses have to implement this to get this functionality.
|
1445 |
|
|
return null;
|
1446 |
|
|
}
|
1447 |
|
|
|
1448 |
|
|
/**
|
1449 |
|
|
* Creates a {@link View} for the specified {@link Element}.
|
1450 |
|
|
*
|
1451 |
|
|
* @param elem the <code>Element</code> to create a <code>View</code> for
|
1452 |
|
|
* @param p0 the start offset
|
1453 |
|
|
* @param p1 the end offset
|
1454 |
|
|
*
|
1455 |
|
|
* @see ViewFactory
|
1456 |
|
|
*/
|
1457 |
|
|
public View create(Element elem, int p0, int p1)
|
1458 |
|
|
{
|
1459 |
|
|
// Subclasses have to implement this to get this functionality.
|
1460 |
|
|
return null;
|
1461 |
|
|
}
|
1462 |
|
|
|
1463 |
|
|
/**
|
1464 |
|
|
* A cached Insets instance to be reused below.
|
1465 |
|
|
*/
|
1466 |
|
|
private Insets cachedInsets;
|
1467 |
|
|
|
1468 |
|
|
/**
|
1469 |
|
|
* Returns the allocation to give the root view.
|
1470 |
|
|
*
|
1471 |
|
|
* @return the allocation to give the root view
|
1472 |
|
|
*
|
1473 |
|
|
* @specnote The allocation has nothing to do with visibility. According
|
1474 |
|
|
* to the specs the naming of this method is unfortunate and
|
1475 |
|
|
* has historical reasons
|
1476 |
|
|
*/
|
1477 |
|
|
protected Rectangle getVisibleEditorRect()
|
1478 |
|
|
{
|
1479 |
|
|
int width = textComponent.getWidth();
|
1480 |
|
|
int height = textComponent.getHeight();
|
1481 |
|
|
|
1482 |
|
|
// Return null if the component has no valid size.
|
1483 |
|
|
if (width <= 0 || height <= 0)
|
1484 |
|
|
return null;
|
1485 |
|
|
|
1486 |
|
|
Insets insets = textComponent.getInsets(cachedInsets);
|
1487 |
|
|
return new Rectangle(insets.left, insets.top,
|
1488 |
|
|
width - insets.left - insets.right,
|
1489 |
|
|
height - insets.top - insets.bottom);
|
1490 |
|
|
}
|
1491 |
|
|
|
1492 |
|
|
/**
|
1493 |
|
|
* Sets the root view for the text component.
|
1494 |
|
|
*
|
1495 |
|
|
* @param view the <code>View</code> to be set as root view
|
1496 |
|
|
*/
|
1497 |
|
|
protected final void setView(View view)
|
1498 |
|
|
{
|
1499 |
|
|
rootView.setView(view);
|
1500 |
|
|
textComponent.revalidate();
|
1501 |
|
|
textComponent.repaint();
|
1502 |
|
|
}
|
1503 |
|
|
|
1504 |
|
|
/**
|
1505 |
|
|
* Indicates that the model of a text component has changed. This
|
1506 |
|
|
* triggers a rebuild of the view hierarchy.
|
1507 |
|
|
*/
|
1508 |
|
|
protected void modelChanged()
|
1509 |
|
|
{
|
1510 |
|
|
if (textComponent == null || rootView == null)
|
1511 |
|
|
return;
|
1512 |
|
|
ViewFactory factory = rootView.getViewFactory();
|
1513 |
|
|
if (factory == null)
|
1514 |
|
|
return;
|
1515 |
|
|
Document doc = textComponent.getDocument();
|
1516 |
|
|
if (doc == null)
|
1517 |
|
|
return;
|
1518 |
|
|
Element elem = doc.getDefaultRootElement();
|
1519 |
|
|
if (elem == null)
|
1520 |
|
|
return;
|
1521 |
|
|
View view = factory.create(elem);
|
1522 |
|
|
setView(view);
|
1523 |
|
|
}
|
1524 |
|
|
|
1525 |
|
|
/**
|
1526 |
|
|
* Receives notification whenever one of the text component's bound
|
1527 |
|
|
* properties changes. This default implementation does nothing.
|
1528 |
|
|
* It is a hook that enables subclasses to react to property changes
|
1529 |
|
|
* on the text component.
|
1530 |
|
|
*
|
1531 |
|
|
* @param ev the property change event
|
1532 |
|
|
*/
|
1533 |
|
|
protected void propertyChange(PropertyChangeEvent ev)
|
1534 |
|
|
{
|
1535 |
|
|
// The default implementation does nothing.
|
1536 |
|
|
}
|
1537 |
|
|
|
1538 |
|
|
}
|