/* * 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 */public class ListView extends BlockView { /** * 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. * * @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. * * @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. * * @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;}
/*
* 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
*/
public class ListView extends BlockView {
/**
* 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.
*
* @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.
*
* @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.
*
* @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;
}