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jlechner |
/* BasicTextUI.java --
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Copyright (C) 2002, 2003, 2004, 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.plaf.basic;
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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.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.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.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.TextUI;
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import javax.swing.plaf.UIResource;
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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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/**
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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 view 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 view, 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(null);
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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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if (view != null)
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return 1;
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else
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return 0;
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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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* Returns the preferred span along the specified <code>axis</code>.
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* This is delegated to the real root view.
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*
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* @param axis the axis for which the preferred span is queried
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*
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* @return the preferred span along the axis
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*/
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public float getPreferredSpan(int axis)
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{
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if (view != null)
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return view.getPreferredSpan(axis);
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return Integer.MAX_VALUE;
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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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if (view != null)
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view.paint(g, s);
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}
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/**
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* Maps a position in the document into the coordinate space of the View.
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* The output rectangle usually reflects the font height but has a width
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* of zero.
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*
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* This is delegated to the real root view.
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*
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* @param position the position of the character in the model
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* @param a the area that is occupied by the view
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* @param bias either {@link Position.Bias#Forward} or
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* {@link Position.Bias#Backward} depending on the preferred
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* direction bias. If <code>null</code> this defaults to
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* <code>Position.Bias.Forward</code>
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*
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* @return a rectangle that gives the location of the document position
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* inside the view coordinate space
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*
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* @throws BadLocationException if <code>pos</code> is invalid
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* @throws IllegalArgumentException if b is not one of the above listed
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* valid values
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*/
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public Shape modelToView(int position, Shape a, Position.Bias bias)
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throws BadLocationException
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{
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return ((View) view).modelToView(position, a, bias);
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}
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/**
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* Maps coordinates from the <code>View</code>'s space into a position
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* in the document model.
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*
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* @param x the x coordinate in the view space
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* @param y the y coordinate in the view space
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* @param a the allocation of this <code>View</code>
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* @param b the bias to use
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*
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* @return the position in the document that corresponds to the screen
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* coordinates <code>x, y</code>
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*/
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public int viewToModel(float x, float y, Shape a, Position.Bias[] b)
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{
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return view.viewToModel(x, y, a, b);
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}
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/**
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* Notification about text insertions. These are forwarded to the
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* real root view.
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*
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* @param ev the DocumentEvent describing the change
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* @param shape the current allocation of the view's display
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* @param vf the ViewFactory to use for creating new Views
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*/
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public void insertUpdate(DocumentEvent ev, Shape shape, ViewFactory vf)
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{
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view.insertUpdate(ev, shape, vf);
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}
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/**
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* Notification about text removals. These are forwarded to the
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* real root view.
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*
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* @param ev the DocumentEvent describing the change
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* @param shape the current allocation of the view's display
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* @param vf the ViewFactory to use for creating new Views
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*/
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public void removeUpdate(DocumentEvent ev, Shape shape, ViewFactory vf)
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{
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view.removeUpdate(ev, shape, vf);
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}
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/**
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* Notification about text changes. These are forwarded to the
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* real root view.
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*
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* @param ev the DocumentEvent describing the change
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* @param shape the current allocation of the view's display
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* @param vf the ViewFactory to use for creating new Views
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*/
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public void changedUpdate(DocumentEvent ev, Shape shape, ViewFactory vf)
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{
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view.changedUpdate(ev, shape, vf);
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}
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/**
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* Returns the document position that is (visually) nearest to the given
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* document position <code>pos</code> in the given direction <code>d</code>.
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*
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* @param c the text component
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* @param pos the document position
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* @param b the bias for <code>pos</code>
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* @param d the direction, must be either {@link SwingConstants#NORTH},
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* {@link SwingConstants#SOUTH}, {@link SwingConstants#WEST} or
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* {@link SwingConstants#EAST}
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* @param biasRet an array of {@link Position.Bias} that can hold at least
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* one element, which is filled with the bias of the return position
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* on method exit
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*
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* @return the document position that is (visually) nearest to the given
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* document position <code>pos</code> in the given direction
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* <code>d</code>
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*
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* @throws BadLocationException if <code>pos</code> is not a valid offset in
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* the document model
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*/
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public int getNextVisualPositionFrom(JTextComponent c, int pos,
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Position.Bias b, int d,
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Position.Bias[] biasRet)
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throws BadLocationException
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{
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return view.getNextVisualPositionFrom(c, pos, b, d, biasRet);
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}
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}
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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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class PropertyChangeHandler implements PropertyChangeListener
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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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{
|
377 |
|
|
// Document changed.
|
378 |
|
|
modelChanged();
|
379 |
|
|
}
|
380 |
|
|
|
381 |
|
|
BasicTextUI.this.propertyChange(event);
|
382 |
|
|
}
|
383 |
|
|
}
|
384 |
|
|
|
385 |
|
|
/**
|
386 |
|
|
* Listens for changes on the underlying model and forwards notifications
|
387 |
|
|
* to the View. This also updates the caret position of the text component.
|
388 |
|
|
*
|
389 |
|
|
* TODO: Maybe this should somehow be handled through EditorKits
|
390 |
|
|
*/
|
391 |
|
|
class DocumentHandler implements DocumentListener
|
392 |
|
|
{
|
393 |
|
|
/**
|
394 |
|
|
* Notification about a document change event.
|
395 |
|
|
*
|
396 |
|
|
* @param ev the DocumentEvent describing the change
|
397 |
|
|
*/
|
398 |
|
|
public void changedUpdate(DocumentEvent ev)
|
399 |
|
|
{
|
400 |
|
|
rootView.changedUpdate(ev, getVisibleEditorRect(),
|
401 |
|
|
rootView.getViewFactory());
|
402 |
|
|
}
|
403 |
|
|
|
404 |
|
|
/**
|
405 |
|
|
* Notification about a document insert event.
|
406 |
|
|
*
|
407 |
|
|
* @param ev the DocumentEvent describing the insertion
|
408 |
|
|
*/
|
409 |
|
|
public void insertUpdate(DocumentEvent ev)
|
410 |
|
|
{
|
411 |
|
|
rootView.insertUpdate(ev, getVisibleEditorRect(),
|
412 |
|
|
rootView.getViewFactory());
|
413 |
|
|
}
|
414 |
|
|
|
415 |
|
|
/**
|
416 |
|
|
* Notification about a document removal event.
|
417 |
|
|
*
|
418 |
|
|
* @param ev the DocumentEvent describing the removal
|
419 |
|
|
*/
|
420 |
|
|
public void removeUpdate(DocumentEvent ev)
|
421 |
|
|
{
|
422 |
|
|
rootView.removeUpdate(ev, getVisibleEditorRect(),
|
423 |
|
|
rootView.getViewFactory());
|
424 |
|
|
}
|
425 |
|
|
}
|
426 |
|
|
|
427 |
|
|
/**
|
428 |
|
|
* The EditorKit used by this TextUI.
|
429 |
|
|
*/
|
430 |
|
|
// FIXME: should probably be non-static.
|
431 |
|
|
static EditorKit kit = new DefaultEditorKit();
|
432 |
|
|
|
433 |
|
|
/**
|
434 |
|
|
* The root view.
|
435 |
|
|
*/
|
436 |
|
|
RootView rootView = new RootView();
|
437 |
|
|
|
438 |
|
|
/**
|
439 |
|
|
* The text component that we handle.
|
440 |
|
|
*/
|
441 |
|
|
JTextComponent textComponent;
|
442 |
|
|
|
443 |
|
|
/**
|
444 |
|
|
* Receives notification when the model changes.
|
445 |
|
|
*/
|
446 |
|
|
PropertyChangeHandler updateHandler = new PropertyChangeHandler();
|
447 |
|
|
|
448 |
|
|
/** The DocumentEvent handler. */
|
449 |
|
|
DocumentHandler documentHandler = new DocumentHandler();
|
450 |
|
|
|
451 |
|
|
/**
|
452 |
|
|
* The standard background color. This is the color which is used to paint
|
453 |
|
|
* text in enabled text components.
|
454 |
|
|
*/
|
455 |
|
|
Color background;
|
456 |
|
|
|
457 |
|
|
/**
|
458 |
|
|
* The inactive background color. This is the color which is used to paint
|
459 |
|
|
* text in disabled text components.
|
460 |
|
|
*/
|
461 |
|
|
Color inactiveBackground;
|
462 |
|
|
|
463 |
|
|
/**
|
464 |
|
|
* Creates a new <code>BasicTextUI</code> instance.
|
465 |
|
|
*/
|
466 |
|
|
public BasicTextUI()
|
467 |
|
|
{
|
468 |
|
|
// Nothing to do here.
|
469 |
|
|
}
|
470 |
|
|
|
471 |
|
|
/**
|
472 |
|
|
* Creates a {@link Caret} that should be installed into the text component.
|
473 |
|
|
*
|
474 |
|
|
* @return a caret that should be installed into the text component
|
475 |
|
|
*/
|
476 |
|
|
protected Caret createCaret()
|
477 |
|
|
{
|
478 |
|
|
return new BasicCaret();
|
479 |
|
|
}
|
480 |
|
|
|
481 |
|
|
/**
|
482 |
|
|
* Creates a {@link Highlighter} that should be installed into the text
|
483 |
|
|
* component.
|
484 |
|
|
*
|
485 |
|
|
* @return a <code>Highlighter</code> for the text component
|
486 |
|
|
*/
|
487 |
|
|
protected Highlighter createHighlighter()
|
488 |
|
|
{
|
489 |
|
|
return new BasicHighlighter();
|
490 |
|
|
}
|
491 |
|
|
|
492 |
|
|
/**
|
493 |
|
|
* The text component that is managed by this UI.
|
494 |
|
|
*
|
495 |
|
|
* @return the text component that is managed by this UI
|
496 |
|
|
*/
|
497 |
|
|
protected final JTextComponent getComponent()
|
498 |
|
|
{
|
499 |
|
|
return textComponent;
|
500 |
|
|
}
|
501 |
|
|
|
502 |
|
|
/**
|
503 |
|
|
* Installs this UI on the text component.
|
504 |
|
|
*
|
505 |
|
|
* @param c the text component on which to install the UI
|
506 |
|
|
*/
|
507 |
|
|
public void installUI(final JComponent c)
|
508 |
|
|
{
|
509 |
|
|
super.installUI(c);
|
510 |
|
|
c.setOpaque(true);
|
511 |
|
|
|
512 |
|
|
textComponent = (JTextComponent) c;
|
513 |
|
|
|
514 |
|
|
Document doc = textComponent.getDocument();
|
515 |
|
|
if (doc == null)
|
516 |
|
|
{
|
517 |
|
|
doc = getEditorKit(textComponent).createDefaultDocument();
|
518 |
|
|
textComponent.setDocument(doc);
|
519 |
|
|
}
|
520 |
|
|
|
521 |
|
|
textComponent.addPropertyChangeListener(updateHandler);
|
522 |
|
|
modelChanged();
|
523 |
|
|
|
524 |
|
|
installDefaults();
|
525 |
|
|
installListeners();
|
526 |
|
|
installKeyboardActions();
|
527 |
|
|
}
|
528 |
|
|
|
529 |
|
|
/**
|
530 |
|
|
* Installs UI defaults on the text components.
|
531 |
|
|
*/
|
532 |
|
|
protected void installDefaults()
|
533 |
|
|
{
|
534 |
|
|
Caret caret = textComponent.getCaret();
|
535 |
|
|
if (caret == null)
|
536 |
|
|
{
|
537 |
|
|
caret = createCaret();
|
538 |
|
|
textComponent.setCaret(caret);
|
539 |
|
|
}
|
540 |
|
|
|
541 |
|
|
Highlighter highlighter = textComponent.getHighlighter();
|
542 |
|
|
if (highlighter == null)
|
543 |
|
|
textComponent.setHighlighter(createHighlighter());
|
544 |
|
|
|
545 |
|
|
String prefix = getPropertyPrefix();
|
546 |
|
|
LookAndFeel.installColorsAndFont(textComponent, prefix + ".background",
|
547 |
|
|
prefix + ".foreground", prefix + ".font");
|
548 |
|
|
LookAndFeel.installBorder(textComponent, prefix + ".border");
|
549 |
|
|
textComponent.setMargin(UIManager.getInsets(prefix + ".margin"));
|
550 |
|
|
|
551 |
|
|
caret.setBlinkRate(UIManager.getInt(prefix + ".caretBlinkRate"));
|
552 |
|
|
|
553 |
|
|
// Fetch the colors for enabled/disabled text components.
|
554 |
|
|
background = UIManager.getColor(prefix + ".background");
|
555 |
|
|
inactiveBackground = UIManager.getColor(prefix + ".inactiveBackground");
|
556 |
|
|
textComponent.setDisabledTextColor
|
557 |
|
|
(UIManager.getColor(prefix + ".inactiveForeground"));
|
558 |
|
|
textComponent.setSelectedTextColor(UIManager.getColor(prefix + ".selectionForeground"));
|
559 |
|
|
textComponent.setSelectionColor(UIManager.getColor(prefix + ".selectionBackground"));
|
560 |
|
|
}
|
561 |
|
|
|
562 |
|
|
/**
|
563 |
|
|
* This FocusListener triggers repaints on focus shift.
|
564 |
|
|
*/
|
565 |
|
|
private FocusListener focuslistener = new FocusListener() {
|
566 |
|
|
public void focusGained(FocusEvent e)
|
567 |
|
|
{
|
568 |
|
|
textComponent.repaint();
|
569 |
|
|
}
|
570 |
|
|
public void focusLost(FocusEvent e)
|
571 |
|
|
{
|
572 |
|
|
textComponent.repaint();
|
573 |
|
|
}
|
574 |
|
|
};
|
575 |
|
|
|
576 |
|
|
/**
|
577 |
|
|
* Install all listeners on the text component.
|
578 |
|
|
*/
|
579 |
|
|
protected void installListeners()
|
580 |
|
|
{
|
581 |
|
|
textComponent.addFocusListener(focuslistener);
|
582 |
|
|
installDocumentListeners();
|
583 |
|
|
}
|
584 |
|
|
|
585 |
|
|
/**
|
586 |
|
|
* Installs the document listeners on the textComponent's model.
|
587 |
|
|
*/
|
588 |
|
|
private void installDocumentListeners()
|
589 |
|
|
{
|
590 |
|
|
Document doc = textComponent.getDocument();
|
591 |
|
|
if (doc != null)
|
592 |
|
|
doc.addDocumentListener(documentHandler);
|
593 |
|
|
}
|
594 |
|
|
|
595 |
|
|
/**
|
596 |
|
|
* Returns the name of the keymap for this type of TextUI.
|
597 |
|
|
*
|
598 |
|
|
* This is implemented so that the classname of this TextUI
|
599 |
|
|
* without the package prefix is returned. This way subclasses
|
600 |
|
|
* don't have to override this method.
|
601 |
|
|
*
|
602 |
|
|
* @return the name of the keymap for this TextUI
|
603 |
|
|
*/
|
604 |
|
|
protected String getKeymapName()
|
605 |
|
|
{
|
606 |
|
|
String fullClassName = getClass().getName();
|
607 |
|
|
int index = fullClassName.lastIndexOf('.');
|
608 |
|
|
String className = fullClassName.substring(index + 1);
|
609 |
|
|
return className;
|
610 |
|
|
}
|
611 |
|
|
|
612 |
|
|
/**
|
613 |
|
|
* Creates the {@link Keymap} that is installed on the text component.
|
614 |
|
|
*
|
615 |
|
|
* @return the {@link Keymap} that is installed on the text component
|
616 |
|
|
*/
|
617 |
|
|
protected Keymap createKeymap()
|
618 |
|
|
{
|
619 |
|
|
String prefix = getPropertyPrefix();
|
620 |
|
|
JTextComponent.KeyBinding[] bindings =
|
621 |
|
|
(JTextComponent.KeyBinding[]) UIManager.get(prefix + ".keyBindings");
|
622 |
|
|
if (bindings == null)
|
623 |
|
|
{
|
624 |
|
|
bindings = new JTextComponent.KeyBinding[0];
|
625 |
|
|
// FIXME: Putting something into the defaults map is certainly wrong.
|
626 |
|
|
// Must be fixed somehow.
|
627 |
|
|
UIManager.put(prefix + ".keyBindings", bindings);
|
628 |
|
|
}
|
629 |
|
|
|
630 |
|
|
Keymap km = JTextComponent.addKeymap(getKeymapName(),
|
631 |
|
|
JTextComponent.getKeymap(JTextComponent.DEFAULT_KEYMAP));
|
632 |
|
|
JTextComponent.loadKeymap(km, bindings, textComponent.getActions());
|
633 |
|
|
return km;
|
634 |
|
|
}
|
635 |
|
|
|
636 |
|
|
/**
|
637 |
|
|
* Installs the keyboard actions on the text components.
|
638 |
|
|
*/
|
639 |
|
|
protected void installKeyboardActions()
|
640 |
|
|
{
|
641 |
|
|
// load any bindings for the older Keymap interface
|
642 |
|
|
Keymap km = JTextComponent.getKeymap(getKeymapName());
|
643 |
|
|
if (km == null)
|
644 |
|
|
km = createKeymap();
|
645 |
|
|
textComponent.setKeymap(km);
|
646 |
|
|
|
647 |
|
|
// load any bindings for the newer InputMap / ActionMap interface
|
648 |
|
|
SwingUtilities.replaceUIInputMap(textComponent,
|
649 |
|
|
JComponent.WHEN_FOCUSED,
|
650 |
|
|
getInputMap(JComponent.WHEN_FOCUSED));
|
651 |
|
|
SwingUtilities.replaceUIActionMap(textComponent, getActionMap());
|
652 |
|
|
}
|
653 |
|
|
|
654 |
|
|
/**
|
655 |
|
|
* Gets the input map for the specified <code>condition</code>.
|
656 |
|
|
*
|
657 |
|
|
* @param condition the condition for the InputMap
|
658 |
|
|
*
|
659 |
|
|
* @return the InputMap for the specified condition
|
660 |
|
|
*/
|
661 |
|
|
InputMap getInputMap(int condition)
|
662 |
|
|
{
|
663 |
|
|
String prefix = getPropertyPrefix();
|
664 |
|
|
switch (condition)
|
665 |
|
|
{
|
666 |
|
|
case JComponent.WHEN_IN_FOCUSED_WINDOW:
|
667 |
|
|
// FIXME: is this the right string? nobody seems to use it.
|
668 |
|
|
return (InputMap) UIManager.get(prefix + ".windowInputMap");
|
669 |
|
|
case JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT:
|
670 |
|
|
return (InputMap) UIManager.get(prefix + ".ancestorInputMap");
|
671 |
|
|
default:
|
672 |
|
|
case JComponent.WHEN_FOCUSED:
|
673 |
|
|
return (InputMap) UIManager.get(prefix + ".focusInputMap");
|
674 |
|
|
}
|
675 |
|
|
}
|
676 |
|
|
|
677 |
|
|
/**
|
678 |
|
|
* Returns the ActionMap to be installed on the text component.
|
679 |
|
|
*
|
680 |
|
|
* @return the ActionMap to be installed on the text component
|
681 |
|
|
*/
|
682 |
|
|
// FIXME: The UIDefaults have no entries for .actionMap, so this should
|
683 |
|
|
// be handled somehow different.
|
684 |
|
|
ActionMap getActionMap()
|
685 |
|
|
{
|
686 |
|
|
String prefix = getPropertyPrefix();
|
687 |
|
|
ActionMap am = (ActionMap) UIManager.get(prefix + ".actionMap");
|
688 |
|
|
if (am == null)
|
689 |
|
|
{
|
690 |
|
|
am = createActionMap();
|
691 |
|
|
// FIXME: Putting something in the UIDefaults map is certainly wrong.
|
692 |
|
|
// However, the whole method seems wrong and must be replaced by
|
693 |
|
|
// something that is less wrong.
|
694 |
|
|
UIManager.put(prefix + ".actionMap", am);
|
695 |
|
|
}
|
696 |
|
|
return am;
|
697 |
|
|
}
|
698 |
|
|
|
699 |
|
|
/**
|
700 |
|
|
* Creates an ActionMap to be installed on the text component.
|
701 |
|
|
*
|
702 |
|
|
* @return an ActionMap to be installed on the text component
|
703 |
|
|
*/
|
704 |
|
|
ActionMap createActionMap()
|
705 |
|
|
{
|
706 |
|
|
Action[] actions = textComponent.getActions();
|
707 |
|
|
ActionMap am = new ActionMapUIResource();
|
708 |
|
|
for (int i = 0; i < actions.length; ++i)
|
709 |
|
|
{
|
710 |
|
|
String name = (String) actions[i].getValue(Action.NAME);
|
711 |
|
|
if (name != null)
|
712 |
|
|
am.put(name, actions[i]);
|
713 |
|
|
}
|
714 |
|
|
return am;
|
715 |
|
|
}
|
716 |
|
|
|
717 |
|
|
/**
|
718 |
|
|
* Uninstalls this TextUI from the text component.
|
719 |
|
|
*
|
720 |
|
|
* @param component the text component to uninstall the UI from
|
721 |
|
|
*/
|
722 |
|
|
public void uninstallUI(final JComponent component)
|
723 |
|
|
{
|
724 |
|
|
super.uninstallUI(component);
|
725 |
|
|
rootView.setView(null);
|
726 |
|
|
|
727 |
|
|
textComponent.removePropertyChangeListener(updateHandler);
|
728 |
|
|
|
729 |
|
|
uninstallDefaults();
|
730 |
|
|
uninstallListeners();
|
731 |
|
|
uninstallKeyboardActions();
|
732 |
|
|
|
733 |
|
|
textComponent = null;
|
734 |
|
|
}
|
735 |
|
|
|
736 |
|
|
/**
|
737 |
|
|
* Uninstalls all default properties that have previously been installed by
|
738 |
|
|
* this UI.
|
739 |
|
|
*/
|
740 |
|
|
protected void uninstallDefaults()
|
741 |
|
|
{
|
742 |
|
|
// Do nothing here.
|
743 |
|
|
}
|
744 |
|
|
|
745 |
|
|
/**
|
746 |
|
|
* Uninstalls all listeners that have previously been installed by
|
747 |
|
|
* this UI.
|
748 |
|
|
*/
|
749 |
|
|
protected void uninstallListeners()
|
750 |
|
|
{
|
751 |
|
|
textComponent.removeFocusListener(focuslistener);
|
752 |
|
|
textComponent.getDocument().removeDocumentListener(documentHandler);
|
753 |
|
|
}
|
754 |
|
|
|
755 |
|
|
/**
|
756 |
|
|
* Uninstalls all keyboard actions that have previously been installed by
|
757 |
|
|
* this UI.
|
758 |
|
|
*/
|
759 |
|
|
protected void uninstallKeyboardActions()
|
760 |
|
|
{
|
761 |
|
|
// FIXME: Uninstall keyboard actions here.
|
762 |
|
|
}
|
763 |
|
|
|
764 |
|
|
/**
|
765 |
|
|
* Returns the property prefix by which the text component's UIDefaults
|
766 |
|
|
* are looked up.
|
767 |
|
|
*
|
768 |
|
|
* @return the property prefix by which the text component's UIDefaults
|
769 |
|
|
* are looked up
|
770 |
|
|
*/
|
771 |
|
|
protected abstract String getPropertyPrefix();
|
772 |
|
|
|
773 |
|
|
/**
|
774 |
|
|
* Returns the preferred size of the text component.
|
775 |
|
|
*
|
776 |
|
|
* @param c not used here
|
777 |
|
|
*
|
778 |
|
|
* @return the preferred size of the text component
|
779 |
|
|
*/
|
780 |
|
|
public Dimension getPreferredSize(JComponent c)
|
781 |
|
|
{
|
782 |
|
|
View v = getRootView(textComponent);
|
783 |
|
|
|
784 |
|
|
float w = v.getPreferredSpan(View.X_AXIS);
|
785 |
|
|
float h = v.getPreferredSpan(View.Y_AXIS);
|
786 |
|
|
|
787 |
|
|
return new Dimension((int) w, (int) h);
|
788 |
|
|
}
|
789 |
|
|
|
790 |
|
|
/**
|
791 |
|
|
* Returns the maximum size for text components that use this UI.
|
792 |
|
|
*
|
793 |
|
|
* This returns (Integer.MAX_VALUE, Integer.MAX_VALUE).
|
794 |
|
|
*
|
795 |
|
|
* @param c not used here
|
796 |
|
|
*
|
797 |
|
|
* @return the maximum size for text components that use this UI
|
798 |
|
|
*/
|
799 |
|
|
public Dimension getMaximumSize(JComponent c)
|
800 |
|
|
{
|
801 |
|
|
// Sun's implementation returns Integer.MAX_VALUE here, so do we.
|
802 |
|
|
return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
|
803 |
|
|
}
|
804 |
|
|
|
805 |
|
|
/**
|
806 |
|
|
* Returns the minimum size for text components. This returns the size
|
807 |
|
|
* of the component's insets.
|
808 |
|
|
*
|
809 |
|
|
* @return the minimum size for text components
|
810 |
|
|
*/
|
811 |
|
|
public Dimension getMinimumSize(JComponent c)
|
812 |
|
|
{
|
813 |
|
|
Insets i = c.getInsets();
|
814 |
|
|
return new Dimension(i.left + i.right, i.top + i.bottom);
|
815 |
|
|
}
|
816 |
|
|
|
817 |
|
|
/**
|
818 |
|
|
* Paints the text component.
|
819 |
|
|
*
|
820 |
|
|
* @param g the <code>Graphics</code> context to paint to
|
821 |
|
|
* @param c not used here
|
822 |
|
|
*/
|
823 |
|
|
public final void paint(Graphics g, JComponent c)
|
824 |
|
|
{
|
825 |
|
|
paintSafely(g);
|
826 |
|
|
}
|
827 |
|
|
|
828 |
|
|
/**
|
829 |
|
|
* Actually performs the painting.
|
830 |
|
|
*
|
831 |
|
|
* @param g the <code>Graphics</code> context to paint to
|
832 |
|
|
*/
|
833 |
|
|
protected void paintSafely(Graphics g)
|
834 |
|
|
{
|
835 |
|
|
Caret caret = textComponent.getCaret();
|
836 |
|
|
Highlighter highlighter = textComponent.getHighlighter();
|
837 |
|
|
|
838 |
|
|
if (textComponent.isOpaque())
|
839 |
|
|
paintBackground(g);
|
840 |
|
|
|
841 |
|
|
if (highlighter != null
|
842 |
|
|
&& textComponent.getSelectionStart() != textComponent.getSelectionEnd())
|
843 |
|
|
highlighter.paint(g);
|
844 |
|
|
|
845 |
|
|
rootView.paint(g, getVisibleEditorRect());
|
846 |
|
|
|
847 |
|
|
if (caret != null && textComponent.hasFocus())
|
848 |
|
|
caret.paint(g);
|
849 |
|
|
}
|
850 |
|
|
|
851 |
|
|
/**
|
852 |
|
|
* Paints the background of the text component.
|
853 |
|
|
*
|
854 |
|
|
* @param g the <code>Graphics</code> context to paint to
|
855 |
|
|
*/
|
856 |
|
|
protected void paintBackground(Graphics g)
|
857 |
|
|
{
|
858 |
|
|
// This method does nothing. All the background filling is done by the
|
859 |
|
|
// ComponentUI update method. However, the method is called by paint
|
860 |
|
|
// to provide a way for subclasses to draw something different (e.g.
|
861 |
|
|
// background images etc) on the background.
|
862 |
|
|
}
|
863 |
|
|
|
864 |
|
|
/**
|
865 |
|
|
* Marks the specified range inside the text component's model as
|
866 |
|
|
* damaged and queues a repaint request.
|
867 |
|
|
*
|
868 |
|
|
* @param t the text component
|
869 |
|
|
* @param p0 the start location inside the document model of the range that
|
870 |
|
|
* is damaged
|
871 |
|
|
* @param p1 the end location inside the document model of the range that
|
872 |
|
|
* is damaged
|
873 |
|
|
*/
|
874 |
|
|
public void damageRange(JTextComponent t, int p0, int p1)
|
875 |
|
|
{
|
876 |
|
|
damageRange(t, p0, p1, null, null);
|
877 |
|
|
}
|
878 |
|
|
|
879 |
|
|
/**
|
880 |
|
|
* Marks the specified range inside the text component's model as
|
881 |
|
|
* damaged and queues a repaint request. This variant of this method
|
882 |
|
|
* allows a {@link Position.Bias} object to be specified for the start
|
883 |
|
|
* and end location of the range.
|
884 |
|
|
*
|
885 |
|
|
* @param t the text component
|
886 |
|
|
* @param p0 the start location inside the document model of the range that
|
887 |
|
|
* is damaged
|
888 |
|
|
* @param p1 the end location inside the document model of the range that
|
889 |
|
|
* is damaged
|
890 |
|
|
* @param firstBias the bias for the start location
|
891 |
|
|
* @param secondBias the bias for the end location
|
892 |
|
|
*/
|
893 |
|
|
public void damageRange(JTextComponent t, int p0, int p1,
|
894 |
|
|
Position.Bias firstBias, Position.Bias secondBias)
|
895 |
|
|
{
|
896 |
|
|
// TODO: Implement me.
|
897 |
|
|
}
|
898 |
|
|
|
899 |
|
|
/**
|
900 |
|
|
* Returns the {@link EditorKit} used for the text component that is managed
|
901 |
|
|
* by this UI.
|
902 |
|
|
*
|
903 |
|
|
* @param t the text component
|
904 |
|
|
*
|
905 |
|
|
* @return the {@link EditorKit} used for the text component that is managed
|
906 |
|
|
* by this UI
|
907 |
|
|
*/
|
908 |
|
|
public EditorKit getEditorKit(JTextComponent t)
|
909 |
|
|
{
|
910 |
|
|
return kit;
|
911 |
|
|
}
|
912 |
|
|
|
913 |
|
|
/**
|
914 |
|
|
* Gets the next position inside the document model that is visible on
|
915 |
|
|
* screen, starting from <code>pos</code>.
|
916 |
|
|
*
|
917 |
|
|
* @param t the text component
|
918 |
|
|
* @param pos the start positionn
|
919 |
|
|
* @param b the bias for pos
|
920 |
|
|
* @param direction the search direction
|
921 |
|
|
* @param biasRet filled by the method to indicate the bias of the return
|
922 |
|
|
* value
|
923 |
|
|
*
|
924 |
|
|
* @return the next position inside the document model that is visible on
|
925 |
|
|
* screen
|
926 |
|
|
*/
|
927 |
|
|
public int getNextVisualPositionFrom(JTextComponent t, int pos,
|
928 |
|
|
Position.Bias b, int direction,
|
929 |
|
|
Position.Bias[] biasRet)
|
930 |
|
|
throws BadLocationException
|
931 |
|
|
{
|
932 |
|
|
return 0; // TODO: Implement me.
|
933 |
|
|
}
|
934 |
|
|
|
935 |
|
|
/**
|
936 |
|
|
* Returns the root {@link View} of a text component.
|
937 |
|
|
*
|
938 |
|
|
* @return the root {@link View} of a text component
|
939 |
|
|
*/
|
940 |
|
|
public View getRootView(JTextComponent t)
|
941 |
|
|
{
|
942 |
|
|
return rootView;
|
943 |
|
|
}
|
944 |
|
|
|
945 |
|
|
/**
|
946 |
|
|
* Maps a position in the document into the coordinate space of the View.
|
947 |
|
|
* The output rectangle usually reflects the font height but has a width
|
948 |
|
|
* of zero. A bias of {@link Position.Bias#Forward} is used in this method.
|
949 |
|
|
*
|
950 |
|
|
* @param t the text component
|
951 |
|
|
* @param pos the position of the character in the model
|
952 |
|
|
*
|
953 |
|
|
* @return a rectangle that gives the location of the document position
|
954 |
|
|
* inside the view coordinate space
|
955 |
|
|
*
|
956 |
|
|
* @throws BadLocationException if <code>pos</code> is invalid
|
957 |
|
|
* @throws IllegalArgumentException if b is not one of the above listed
|
958 |
|
|
* valid values
|
959 |
|
|
*/
|
960 |
|
|
public Rectangle modelToView(JTextComponent t, int pos)
|
961 |
|
|
throws BadLocationException
|
962 |
|
|
{
|
963 |
|
|
return modelToView(t, pos, Position.Bias.Forward);
|
964 |
|
|
}
|
965 |
|
|
|
966 |
|
|
/**
|
967 |
|
|
* Maps a position in the document into the coordinate space of the View.
|
968 |
|
|
* The output rectangle usually reflects the font height but has a width
|
969 |
|
|
* of zero.
|
970 |
|
|
*
|
971 |
|
|
* @param t the text component
|
972 |
|
|
* @param pos the position of the character in the model
|
973 |
|
|
* @param bias either {@link Position.Bias#Forward} or
|
974 |
|
|
* {@link Position.Bias#Backward} depending on the preferred
|
975 |
|
|
* direction bias. If <code>null</code> this defaults to
|
976 |
|
|
* <code>Position.Bias.Forward</code>
|
977 |
|
|
*
|
978 |
|
|
* @return a rectangle that gives the location of the document position
|
979 |
|
|
* inside the view coordinate space
|
980 |
|
|
*
|
981 |
|
|
* @throws BadLocationException if <code>pos</code> is invalid
|
982 |
|
|
* @throws IllegalArgumentException if b is not one of the above listed
|
983 |
|
|
* valid values
|
984 |
|
|
*/
|
985 |
|
|
public Rectangle modelToView(JTextComponent t, int pos, Position.Bias bias)
|
986 |
|
|
throws BadLocationException
|
987 |
|
|
{
|
988 |
|
|
return rootView.modelToView(pos, getVisibleEditorRect(), bias).getBounds();
|
989 |
|
|
}
|
990 |
|
|
|
991 |
|
|
/**
|
992 |
|
|
* Maps a point in the <code>View</code> coordinate space to a position
|
993 |
|
|
* inside a document model.
|
994 |
|
|
*
|
995 |
|
|
* @param t the text component
|
996 |
|
|
* @param pt the point to be mapped
|
997 |
|
|
*
|
998 |
|
|
* @return the position inside the document model that corresponds to
|
999 |
|
|
* <code>pt</code>
|
1000 |
|
|
*/
|
1001 |
|
|
public int viewToModel(JTextComponent t, Point pt)
|
1002 |
|
|
{
|
1003 |
|
|
return viewToModel(t, pt, null);
|
1004 |
|
|
}
|
1005 |
|
|
|
1006 |
|
|
/**
|
1007 |
|
|
* Maps a point in the <code>View</code> coordinate space to a position
|
1008 |
|
|
* inside a document model.
|
1009 |
|
|
*
|
1010 |
|
|
* @param t the text component
|
1011 |
|
|
* @param pt the point to be mapped
|
1012 |
|
|
* @param biasReturn filled in by the method to indicate the bias of the
|
1013 |
|
|
* return value
|
1014 |
|
|
*
|
1015 |
|
|
* @return the position inside the document model that corresponds to
|
1016 |
|
|
* <code>pt</code>
|
1017 |
|
|
*/
|
1018 |
|
|
public int viewToModel(JTextComponent t, Point pt, Position.Bias[] biasReturn)
|
1019 |
|
|
{
|
1020 |
|
|
return rootView.viewToModel(pt.x, pt.y, getVisibleEditorRect(), biasReturn);
|
1021 |
|
|
}
|
1022 |
|
|
|
1023 |
|
|
/**
|
1024 |
|
|
* Creates a {@link View} for the specified {@link Element}.
|
1025 |
|
|
*
|
1026 |
|
|
* @param elem the <code>Element</code> to create a <code>View</code> for
|
1027 |
|
|
*
|
1028 |
|
|
* @see ViewFactory
|
1029 |
|
|
*/
|
1030 |
|
|
public View create(Element elem)
|
1031 |
|
|
{
|
1032 |
|
|
// Subclasses have to implement this to get this functionality.
|
1033 |
|
|
return null;
|
1034 |
|
|
}
|
1035 |
|
|
|
1036 |
|
|
/**
|
1037 |
|
|
* Creates a {@link View} for the specified {@link Element}.
|
1038 |
|
|
*
|
1039 |
|
|
* @param elem the <code>Element</code> to create a <code>View</code> for
|
1040 |
|
|
* @param p0 the start offset
|
1041 |
|
|
* @param p1 the end offset
|
1042 |
|
|
*
|
1043 |
|
|
* @see ViewFactory
|
1044 |
|
|
*/
|
1045 |
|
|
public View create(Element elem, int p0, int p1)
|
1046 |
|
|
{
|
1047 |
|
|
// Subclasses have to implement this to get this functionality.
|
1048 |
|
|
return null;
|
1049 |
|
|
}
|
1050 |
|
|
|
1051 |
|
|
/**
|
1052 |
|
|
* Returns the allocation to give the root view.
|
1053 |
|
|
*
|
1054 |
|
|
* @return the allocation to give the root view
|
1055 |
|
|
*
|
1056 |
|
|
* @specnote The allocation has nothing to do with visibility. According
|
1057 |
|
|
* to the specs the naming of this method is unfortunate and
|
1058 |
|
|
* has historical reasons
|
1059 |
|
|
*/
|
1060 |
|
|
protected Rectangle getVisibleEditorRect()
|
1061 |
|
|
{
|
1062 |
|
|
JTextComponent textComponent = getComponent();
|
1063 |
|
|
int width = textComponent.getWidth();
|
1064 |
|
|
int height = textComponent.getHeight();
|
1065 |
|
|
|
1066 |
|
|
if (width <= 0 || height <= 0)
|
1067 |
|
|
return new Rectangle(0, 0, 0, 0);
|
1068 |
|
|
|
1069 |
|
|
Insets insets = textComponent.getInsets();
|
1070 |
|
|
return new Rectangle(insets.left, insets.top,
|
1071 |
|
|
width - insets.left - insets.right,
|
1072 |
|
|
height - insets.top - insets.bottom);
|
1073 |
|
|
}
|
1074 |
|
|
|
1075 |
|
|
/**
|
1076 |
|
|
* Sets the root view for the text component.
|
1077 |
|
|
*
|
1078 |
|
|
* @param view the <code>View</code> to be set as root view
|
1079 |
|
|
*/
|
1080 |
|
|
protected final void setView(View view)
|
1081 |
|
|
{
|
1082 |
|
|
rootView.setView(view);
|
1083 |
|
|
view.setParent(rootView);
|
1084 |
|
|
textComponent.revalidate();
|
1085 |
|
|
textComponent.repaint();
|
1086 |
|
|
}
|
1087 |
|
|
|
1088 |
|
|
/**
|
1089 |
|
|
* Indicates that the model of a text component has changed. This
|
1090 |
|
|
* triggers a rebuild of the view hierarchy.
|
1091 |
|
|
*/
|
1092 |
|
|
protected void modelChanged()
|
1093 |
|
|
{
|
1094 |
|
|
if (textComponent == null || rootView == null)
|
1095 |
|
|
return;
|
1096 |
|
|
ViewFactory factory = rootView.getViewFactory();
|
1097 |
|
|
if (factory == null)
|
1098 |
|
|
return;
|
1099 |
|
|
Document doc = textComponent.getDocument();
|
1100 |
|
|
if (doc == null)
|
1101 |
|
|
return;
|
1102 |
|
|
installDocumentListeners();
|
1103 |
|
|
Element elem = doc.getDefaultRootElement();
|
1104 |
|
|
if (elem == null)
|
1105 |
|
|
return;
|
1106 |
|
|
View view = factory.create(elem);
|
1107 |
|
|
setView(view);
|
1108 |
|
|
}
|
1109 |
|
|
|
1110 |
|
|
/**
|
1111 |
|
|
* Receives notification whenever one of the text component's bound
|
1112 |
|
|
* properties changes. This default implementation does nothing.
|
1113 |
|
|
* It is a hook that enables subclasses to react to property changes
|
1114 |
|
|
* on the text component.
|
1115 |
|
|
*
|
1116 |
|
|
* @param ev the property change event
|
1117 |
|
|
*/
|
1118 |
|
|
protected void propertyChange(PropertyChangeEvent ev)
|
1119 |
|
|
{
|
1120 |
|
|
// The default implementation does nothing.
|
1121 |
|
|
}
|
1122 |
|
|
}
|