/*
 * Copyright (c) 1997, 1999, 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.util.Enumeration;
import java.awt.*;
import javax.swing.text.*;

A view implementation to display an html list
Author: Timothy Prinzing
/** * A view implementation to display an html list * * @author Timothy Prinzing */
public class ListView extends BlockView {
Creates a new view that represents a list element.
Params:
  • elem – the element to create a view for
/** * Creates a new view that represents a list element. * * @param elem the element to create a view for */
public ListView(Element elem) { super(elem, View.Y_AXIS); }
Calculates the desired shape of the list.
See Also:
Returns:the desired span
/** * Calculates the desired shape of the list. * * @return the desired span * @see View#getPreferredSpan */
public float getAlignment(int axis) { switch (axis) { case View.X_AXIS: return 0.5f; case View.Y_AXIS: return 0.5f; default: throw new IllegalArgumentException("Invalid axis: " + axis); } }
Renders using the given rendering surface and area on that surface.
Params:
  • g – the rendering surface to use
  • allocation – the allocated region to render into
See Also:
/** * Renders using the given rendering surface and area on that * surface. * * @param g the rendering surface to use * @param allocation the allocated region to render into * @see View#paint */
public void paint(Graphics g, Shape allocation) { super.paint(g, allocation); Rectangle alloc = allocation.getBounds(); Rectangle clip = g.getClipBounds(); // Since listPainter paints in the insets we have to check for the // case where the child is not painted because the paint region is // to the left of the child. This assumes the ListPainter paints in // the left margin. if ((clip.x + clip.width) < (alloc.x + getLeftInset())) { Rectangle childRect = alloc; alloc = getInsideAllocation(allocation); int n = getViewCount(); int endY = clip.y + clip.height; for (int i = 0; i < n; i++) { childRect.setBounds(alloc); childAllocation(i, childRect); if (childRect.y < endY) { if ((childRect.y + childRect.height) >= clip.y) { listPainter.paint(g, childRect.x, childRect.y, childRect.width, childRect.height, this, i); } } else { break; } } } }
Paints one of the children; called by paint(). By default that is all it does, but a subclass can use this to paint things relative to the child.
Params:
  • g – the graphics context
  • alloc – the allocated region to render the child into
  • index – the index of the child
/** * Paints one of the children; called by paint(). By default * that is all it does, but a subclass can use this to paint * things relative to the child. * * @param g the graphics context * @param alloc the allocated region to render the child into * @param index the index of the child */
protected void paintChild(Graphics g, Rectangle alloc, int index) { listPainter.paint(g, alloc.x, alloc.y, alloc.width, alloc.height, this, index); super.paintChild(g, alloc, index); } protected void setPropertiesFromAttributes() { super.setPropertiesFromAttributes(); listPainter = getStyleSheet().getListPainter(getAttributes()); } private StyleSheet.ListPainter listPainter; }