You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
123 lines
3.3 KiB
123 lines
3.3 KiB
/*
|
|
* Copyright (c) 1997, 1999, Oracle and/or its affiliates. All rights reserved.
|
|
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*/
|
|
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;
|
|
}
|