| /* |
| * 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 != null && |
| 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 { |
| isVisible = false; |
| } |
| } |
| } |
| super.setParent(parent); |
| } |
| |
| /** |
| * @return true if the Component is visible. |
| */ |
| public boolean isVisible() { |
| return isVisible; |
| } |
| |
| /** Set to true if the component is visible. This is based off the |
| * editability of the container. */ |
| private boolean isVisible; |
| } // End of EditableView |