/*
* Copyright (c) 1998, 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javax.swing.text.html;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import javax.swing.text.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import java.util.*;
/**
* EditableView sets the view it contains to be visible only when the
* JTextComponent the view is contained in is editable. The min/pref/max
* size is 0 when not visible.
*
* @author Scott Violet
*/
class EditableView extends ComponentView {
EditableView(Element e) {
super(e);
}
public float getMinimumSpan(int axis) {
if (isVisible) {
return super.getMinimumSpan(axis);
}
return 0;
}
public float getPreferredSpan(int axis) {
if (isVisible) {
return super.getPreferredSpan(axis);
}
return 0;
}
public float getMaximumSpan(int axis) {
if (isVisible) {
return super.getMaximumSpan(axis);
}
return 0;
}
public void paint(Graphics g, Shape allocation) {
Component c = getComponent();
Container host = getContainer();
if (host instanceof JTextComponent &&
isVisible != ((JTextComponent)host).isEditable()) {
isVisible = ((JTextComponent)host).isEditable();
preferenceChanged(null, true, true);
host.repaint();
}
/*
* Note: we cannot tweak the visible state of the
* component in createComponent() even though it
* gets called after the setParent() call where
* the value of the boolean is set. This
* because, the setComponentParent() in the
* superclass, always does a setVisible(false)
* after calling createComponent(). We therefore
* use this flag in the paint() method to
* setVisible() to true if required.
*/
if (isVisible) {
super.paint(g, allocation);
}
else {
setSize(0, 0);
}
if (c != null) {
c.setFocusable(isVisible);
}
}
public void setParent(View parent) {
if (parent != null) {
Container host = parent.getContainer();
if (host != null) {
if (host instanceof JTextComponent) {
isVisible = ((JTextComponent)host).isEditable();
} else {
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