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/*
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* Copyright 1998-2006 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package javax.swing.text.html;
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import java.awt.*;
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import java.util.BitSet;
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import java.util.Vector;
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import java.util.Arrays;
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import javax.swing.SizeRequirements;
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import javax.swing.event.DocumentEvent;
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import javax.swing.text.*;
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/**
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* HTML table view.
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*
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* @author Timothy Prinzing
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* @see View
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*/
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/*public*/ class TableView extends BoxView implements ViewFactory {
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/**
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* Constructs a TableView for the given element.
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*
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* @param elem the element that this view is responsible for
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*/
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public TableView(Element elem) {
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super(elem, View.Y_AXIS);
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rows = new Vector();
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gridValid = false;
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captionIndex = -1;
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totalColumnRequirements = new SizeRequirements();
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}
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/**
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* Creates a new table row.
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*
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* @param elem an element
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* @return the row
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*/
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protected RowView createTableRow(Element elem) {
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// PENDING(prinz) need to add support for some of the other
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// elements, but for now just ignore anything that is not
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// a TR.
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Object o = elem.getAttributes().getAttribute(StyleConstants.NameAttribute);
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if (o == HTML.Tag.TR) {
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return new RowView(elem);
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}
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return null;
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}
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/**
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* The number of columns in the table.
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*/
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public int getColumnCount() {
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return columnSpans.length;
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}
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/**
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* Fetches the span (width) of the given column.
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* This is used by the nested cells to query the
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* sizes of grid locations outside of themselves.
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*/
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public int getColumnSpan(int col) {
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if (col < columnSpans.length) {
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return columnSpans[col];
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}
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return 0;
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}
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/**
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* The number of rows in the table.
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*/
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public int getRowCount() {
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return rows.size();
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}
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/**
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* Fetch the span of multiple rows. This includes
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* the border area.
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*/
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public int getMultiRowSpan(int row0, int row1) {
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RowView rv0 = getRow(row0);
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RowView rv1 = getRow(row1);
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if ((rv0 != null) && (rv1 != null)) {
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int index0 = rv0.viewIndex;
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int index1 = rv1.viewIndex;
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int span = getOffset(Y_AXIS, index1) - getOffset(Y_AXIS, index0) +
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getSpan(Y_AXIS, index1);
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return span;
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}
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return 0;
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}
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/**
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* Fetches the span (height) of the given row.
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*/
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public int getRowSpan(int row) {
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RowView rv = getRow(row);
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if (rv != null) {
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return getSpan(Y_AXIS, rv.viewIndex);
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}
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return 0;
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}
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RowView getRow(int row) {
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if (row < rows.size()) {
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return (RowView) rows.elementAt(row);
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}
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return null;
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}
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protected View getViewAtPoint(int x, int y, Rectangle alloc) {
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int n = getViewCount();
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View v = null;
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Rectangle allocation = new Rectangle();
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for (int i = 0; i < n; i++) {
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allocation.setBounds(alloc);
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childAllocation(i, allocation);
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v = getView(i);
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if (v instanceof RowView) {
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v = ((RowView)v).findViewAtPoint(x, y, allocation);
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if (v != null) {
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alloc.setBounds(allocation);
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return v;
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}
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}
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}
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return super.getViewAtPoint(x, y, alloc);
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}
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/**
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* Determines the number of columns occupied by
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* the table cell represented by given element.
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*/
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protected int getColumnsOccupied(View v) {
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AttributeSet a = v.getElement().getAttributes();
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if (a.isDefined(HTML.Attribute.COLSPAN)) {
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String s = (String) a.getAttribute(HTML.Attribute.COLSPAN);
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if (s != null) {
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try {
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return Integer.parseInt(s);
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} catch (NumberFormatException nfe) {
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// fall through to one column
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}
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}
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}
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return 1;
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}
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/**
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* Determines the number of rows occupied by
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* the table cell represented by given element.
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*/
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protected int getRowsOccupied(View v) {
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AttributeSet a = v.getElement().getAttributes();
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if (a.isDefined(HTML.Attribute.ROWSPAN)) {
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String s = (String) a.getAttribute(HTML.Attribute.ROWSPAN);
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if (s != null) {
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try {
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return Integer.parseInt(s);
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} catch (NumberFormatException nfe) {
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// fall through to one row
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}
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}
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}
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return 1;
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}
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protected void invalidateGrid() {
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gridValid = false;
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}
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protected StyleSheet getStyleSheet() {
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HTMLDocument doc = (HTMLDocument) getDocument();
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return doc.getStyleSheet();
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}
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/**
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* Update the insets, which contain the caption if there
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* is a caption.
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*/
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void updateInsets() {
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short top = (short) painter.getInset(TOP, this);
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short bottom = (short) painter.getInset(BOTTOM, this);
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if (captionIndex != -1) {
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View caption = getView(captionIndex);
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short h = (short) caption.getPreferredSpan(Y_AXIS);
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AttributeSet a = caption.getAttributes();
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Object align = a.getAttribute(CSS.Attribute.CAPTION_SIDE);
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if ((align != null) && (align.equals("bottom"))) {
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bottom += h;
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} else {
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top += h;
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}
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}
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setInsets(top, (short) painter.getInset(LEFT, this),
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bottom, (short) painter.getInset(RIGHT, this));
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}
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/**
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* Update any cached values that come from attributes.
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*/
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protected void setPropertiesFromAttributes() {
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StyleSheet sheet = getStyleSheet();
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attr = sheet.getViewAttributes(this);
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painter = sheet.getBoxPainter(attr);
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if (attr != null) {
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setInsets((short) painter.getInset(TOP, this),
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(short) painter.getInset(LEFT, this),
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(short) painter.getInset(BOTTOM, this),
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(short) painter.getInset(RIGHT, this));
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CSS.LengthValue lv = (CSS.LengthValue)
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attr.getAttribute(CSS.Attribute.BORDER_SPACING);
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if (lv != null) {
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cellSpacing = (int) lv.getValue();
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} else {
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cellSpacing = 0;
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}
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lv = (CSS.LengthValue)
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attr.getAttribute(CSS.Attribute.BORDER_TOP_WIDTH);
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if (lv != null) {
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borderWidth = (int) lv.getValue();
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} else {
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borderWidth = 0;
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}
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}
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}
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/**
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* Fill in the grid locations that are placeholders
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* for multi-column, multi-row, and missing grid
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* locations.
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*/
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void updateGrid() {
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if (! gridValid) {
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relativeCells = false;
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multiRowCells = false;
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// determine which views are table rows and clear out
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// grid points marked filled.
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captionIndex = -1;
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rows.removeAllElements();
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int n = getViewCount();
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for (int i = 0; i < n; i++) {
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View v = getView(i);
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if (v instanceof RowView) {
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rows.addElement(v);
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RowView rv = (RowView) v;
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rv.clearFilledColumns();
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rv.rowIndex = rows.size() - 1;
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rv.viewIndex = i;
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} else {
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Object o = v.getElement().getAttributes().getAttribute(StyleConstants.NameAttribute);
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if (o instanceof HTML.Tag) {
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HTML.Tag kind = (HTML.Tag) o;
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if (kind == HTML.Tag.CAPTION) {
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captionIndex = i;
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}
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}
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}
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}
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int maxColumns = 0;
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int nrows = rows.size();
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for (int row = 0; row < nrows; row++) {
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RowView rv = getRow(row);
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int col = 0;
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for (int cell = 0; cell < rv.getViewCount(); cell++, col++) {
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View cv = rv.getView(cell);
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if (! relativeCells) {
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AttributeSet a = cv.getAttributes();
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CSS.LengthValue lv = (CSS.LengthValue)
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a.getAttribute(CSS.Attribute.WIDTH);
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if ((lv != null) && (lv.isPercentage())) {
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relativeCells = true;
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}
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}
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// advance to a free column
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for (; rv.isFilled(col); col++);
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int rowSpan = getRowsOccupied(cv);
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if (rowSpan > 1) {
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multiRowCells = true;
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}
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int colSpan = getColumnsOccupied(cv);
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if ((colSpan > 1) || (rowSpan > 1)) {
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// fill in the overflow entries for this cell
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int rowLimit = row + rowSpan;
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int colLimit = col + colSpan;
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for (int i = row; i < rowLimit; i++) {
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for (int j = col; j < colLimit; j++) {
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if (i != row || j != col) {
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addFill(i, j);
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}
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}
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}
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if (colSpan > 1) {
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col += colSpan - 1;
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}
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}
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}
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maxColumns = Math.max(maxColumns, col);
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}
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// setup the column layout/requirements
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columnSpans = new int[maxColumns];
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columnOffsets = new int[maxColumns];
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columnRequirements = new SizeRequirements[maxColumns];
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for (int i = 0; i < maxColumns; i++) {
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columnRequirements[i] = new SizeRequirements();
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columnRequirements[i].maximum = Integer.MAX_VALUE;
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}
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gridValid = true;
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}
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}
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/**
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* Mark a grid location as filled in for a cells overflow.
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*/
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void addFill(int row, int col) {
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RowView rv = getRow(row);
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if (rv != null) {
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rv.fillColumn(col);
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}
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}
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/**
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* Layout the columns to fit within the given target span.
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*
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* @param targetSpan the given span for total of all the table
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* columns
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* @param reqs the requirements desired for each column. This
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* is the column maximum of the cells minimum, preferred, and
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* maximum requested span
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* @param spans the return value of how much to allocated to
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* each column
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* @param offsets the return value of the offset from the
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* origin for each column
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* @return the offset from the origin and the span for each column
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* in the offsets and spans parameters
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*/
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protected void layoutColumns(int targetSpan, int[] offsets, int[] spans,
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SizeRequirements[] reqs) {
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//clean offsets and spans
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Arrays.fill(offsets, 0);
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Arrays.fill(spans, 0);
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colIterator.setLayoutArrays(offsets, spans, targetSpan);
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CSS.calculateTiledLayout(colIterator, targetSpan);
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}
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/**
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* Calculate the requirements for each column. The calculation
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* is done as two passes over the table. The table cells that
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* occupy a single column are scanned first to determine the
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383 |
* maximum of minimum, preferred, and maximum spans along the
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* give axis. Table cells that span multiple columns are excluded
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* from the first pass. A second pass is made to determine if
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* the cells that span multiple columns are satisfied. If the
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* column requirements are not satisified, the needs of the
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* multi-column cell is mixed into the existing column requirements.
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* The calculation of the multi-column distribution is based upon
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* the proportions of the existing column requirements and taking
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391 |
* into consideration any constraining maximums.
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*/
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393 |
void calculateColumnRequirements(int axis) {
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394 |
// clean columnRequirements
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395 |
for (SizeRequirements req : columnRequirements) {
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396 |
req.minimum = 0;
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397 |
req.preferred = 0;
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398 |
req.maximum = Integer.MAX_VALUE;
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399 |
}
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400 |
Container host = getContainer();
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401 |
if (host != null) {
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402 |
if (host instanceof JTextComponent) {
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403 |
skipComments = !((JTextComponent)host).isEditable();
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404 |
} else {
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405 |
skipComments = true;
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406 |
}
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407 |
}
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408 |
// pass 1 - single column cells
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409 |
boolean hasMultiColumn = false;
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410 |
int nrows = getRowCount();
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411 |
for (int i = 0; i < nrows; i++) {
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412 |
RowView row = getRow(i);
|
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413 |
int col = 0;
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414 |
int ncells = row.getViewCount();
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415 |
for (int cell = 0; cell < ncells; cell++) {
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416 |
View cv = row.getView(cell);
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417 |
if (skipComments && !(cv instanceof CellView)) {
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418 |
continue;
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419 |
}
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420 |
for (; row.isFilled(col); col++); // advance to a free column
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421 |
int rowSpan = getRowsOccupied(cv);
|
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422 |
int colSpan = getColumnsOccupied(cv);
|
|
423 |
if (colSpan == 1) {
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424 |
checkSingleColumnCell(axis, col, cv);
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425 |
} else {
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426 |
hasMultiColumn = true;
|
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427 |
col += colSpan - 1;
|
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428 |
}
|
|
429 |
col++;
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430 |
}
|
|
431 |
}
|
|
432 |
|
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433 |
// pass 2 - multi-column cells
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434 |
if (hasMultiColumn) {
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|
435 |
for (int i = 0; i < nrows; i++) {
|
|
436 |
RowView row = getRow(i);
|
|
437 |
int col = 0;
|
|
438 |
int ncells = row.getViewCount();
|
|
439 |
for (int cell = 0; cell < ncells; cell++) {
|
|
440 |
View cv = row.getView(cell);
|
|
441 |
if (skipComments && !(cv instanceof CellView)) {
|
|
442 |
continue;
|
|
443 |
}
|
|
444 |
for (; row.isFilled(col); col++); // advance to a free column
|
|
445 |
int colSpan = getColumnsOccupied(cv);
|
|
446 |
if (colSpan > 1) {
|
|
447 |
checkMultiColumnCell(axis, col, colSpan, cv);
|
|
448 |
col += colSpan - 1;
|
|
449 |
}
|
|
450 |
col++;
|
|
451 |
}
|
|
452 |
}
|
|
453 |
}
|
|
454 |
}
|
|
455 |
|
|
456 |
/**
|
|
457 |
* check the requirements of a table cell that spans a single column.
|
|
458 |
*/
|
|
459 |
void checkSingleColumnCell(int axis, int col, View v) {
|
|
460 |
SizeRequirements req = columnRequirements[col];
|
|
461 |
req.minimum = Math.max((int) v.getMinimumSpan(axis), req.minimum);
|
|
462 |
req.preferred = Math.max((int) v.getPreferredSpan(axis), req.preferred);
|
|
463 |
}
|
|
464 |
|
|
465 |
/**
|
|
466 |
* check the requirements of a table cell that spans multiple
|
|
467 |
* columns.
|
|
468 |
*/
|
|
469 |
void checkMultiColumnCell(int axis, int col, int ncols, View v) {
|
|
470 |
// calculate the totals
|
|
471 |
long min = 0;
|
|
472 |
long pref = 0;
|
|
473 |
long max = 0;
|
|
474 |
for (int i = 0; i < ncols; i++) {
|
|
475 |
SizeRequirements req = columnRequirements[col + i];
|
|
476 |
min += req.minimum;
|
|
477 |
pref += req.preferred;
|
|
478 |
max += req.maximum;
|
|
479 |
}
|
|
480 |
|
|
481 |
// check if the minimum size needs adjustment.
|
|
482 |
int cmin = (int) v.getMinimumSpan(axis);
|
|
483 |
if (cmin > min) {
|
|
484 |
/*
|
|
485 |
* the columns that this cell spans need adjustment to fit
|
|
486 |
* this table cell.... calculate the adjustments.
|
|
487 |
*/
|
|
488 |
SizeRequirements[] reqs = new SizeRequirements[ncols];
|
|
489 |
for (int i = 0; i < ncols; i++) {
|
|
490 |
reqs[i] = columnRequirements[col + i];
|
|
491 |
}
|
|
492 |
int[] spans = new int[ncols];
|
|
493 |
int[] offsets = new int[ncols];
|
|
494 |
SizeRequirements.calculateTiledPositions(cmin, null, reqs,
|
|
495 |
offsets, spans);
|
|
496 |
// apply the adjustments
|
|
497 |
for (int i = 0; i < ncols; i++) {
|
|
498 |
SizeRequirements req = reqs[i];
|
|
499 |
req.minimum = Math.max(spans[i], req.minimum);
|
|
500 |
req.preferred = Math.max(req.minimum, req.preferred);
|
|
501 |
req.maximum = Math.max(req.preferred, req.maximum);
|
|
502 |
}
|
|
503 |
}
|
|
504 |
|
|
505 |
// check if the preferred size needs adjustment.
|
|
506 |
int cpref = (int) v.getPreferredSpan(axis);
|
|
507 |
if (cpref > pref) {
|
|
508 |
/*
|
|
509 |
* the columns that this cell spans need adjustment to fit
|
|
510 |
* this table cell.... calculate the adjustments.
|
|
511 |
*/
|
|
512 |
SizeRequirements[] reqs = new SizeRequirements[ncols];
|
|
513 |
for (int i = 0; i < ncols; i++) {
|
|
514 |
reqs[i] = columnRequirements[col + i];
|
|
515 |
}
|
|
516 |
int[] spans = new int[ncols];
|
|
517 |
int[] offsets = new int[ncols];
|
|
518 |
SizeRequirements.calculateTiledPositions(cpref, null, reqs,
|
|
519 |
offsets, spans);
|
|
520 |
// apply the adjustments
|
|
521 |
for (int i = 0; i < ncols; i++) {
|
|
522 |
SizeRequirements req = reqs[i];
|
|
523 |
req.preferred = Math.max(spans[i], req.preferred);
|
|
524 |
req.maximum = Math.max(req.preferred, req.maximum);
|
|
525 |
}
|
|
526 |
}
|
|
527 |
|
|
528 |
}
|
|
529 |
|
|
530 |
// --- BoxView methods -----------------------------------------
|
|
531 |
|
|
532 |
/**
|
|
533 |
* Calculate the requirements for the minor axis. This is called by
|
|
534 |
* the superclass whenever the requirements need to be updated (i.e.
|
|
535 |
* a preferenceChanged was messaged through this view).
|
|
536 |
* <p>
|
|
537 |
* This is implemented to calculate the requirements as the sum of the
|
|
538 |
* requirements of the columns and then adjust it if the
|
|
539 |
* CSS width or height attribute is specified and applicable to
|
|
540 |
* the axis.
|
|
541 |
*/
|
|
542 |
protected SizeRequirements calculateMinorAxisRequirements(int axis, SizeRequirements r) {
|
|
543 |
updateGrid();
|
|
544 |
|
|
545 |
// calculate column requirements for each column
|
|
546 |
calculateColumnRequirements(axis);
|
|
547 |
|
|
548 |
|
|
549 |
// the requirements are the sum of the columns.
|
|
550 |
if (r == null) {
|
|
551 |
r = new SizeRequirements();
|
|
552 |
}
|
|
553 |
long min = 0;
|
|
554 |
long pref = 0;
|
|
555 |
int n = columnRequirements.length;
|
|
556 |
for (int i = 0; i < n; i++) {
|
|
557 |
SizeRequirements req = columnRequirements[i];
|
|
558 |
min += req.minimum;
|
|
559 |
pref += req.preferred;
|
|
560 |
}
|
|
561 |
int adjust = (n + 1) * cellSpacing + 2 * borderWidth;
|
|
562 |
min += adjust;
|
|
563 |
pref += adjust;
|
|
564 |
r.minimum = (int) min;
|
|
565 |
r.preferred = (int) pref;
|
|
566 |
r.maximum = (int) pref;
|
|
567 |
|
|
568 |
|
|
569 |
AttributeSet attr = getAttributes();
|
|
570 |
CSS.LengthValue cssWidth = (CSS.LengthValue)attr.getAttribute(
|
|
571 |
CSS.Attribute.WIDTH);
|
|
572 |
|
|
573 |
if (BlockView.spanSetFromAttributes(axis, r, cssWidth, null)) {
|
|
574 |
if (r.minimum < (int)min) {
|
|
575 |
// The user has requested a smaller size than is needed to
|
|
576 |
// show the table, override it.
|
|
577 |
r.maximum = r.minimum = r.preferred = (int) min;
|
|
578 |
}
|
|
579 |
}
|
|
580 |
totalColumnRequirements.minimum = r.minimum;
|
|
581 |
totalColumnRequirements.preferred = r.preferred;
|
|
582 |
totalColumnRequirements.maximum = r.maximum;
|
|
583 |
|
|
584 |
// set the alignment
|
|
585 |
Object o = attr.getAttribute(CSS.Attribute.TEXT_ALIGN);
|
|
586 |
if (o != null) {
|
|
587 |
// set horizontal alignment
|
|
588 |
String ta = o.toString();
|
|
589 |
if (ta.equals("left")) {
|
|
590 |
r.alignment = 0;
|
|
591 |
} else if (ta.equals("center")) {
|
|
592 |
r.alignment = 0.5f;
|
|
593 |
} else if (ta.equals("right")) {
|
|
594 |
r.alignment = 1;
|
|
595 |
} else {
|
|
596 |
r.alignment = 0;
|
|
597 |
}
|
|
598 |
} else {
|
|
599 |
r.alignment = 0;
|
|
600 |
}
|
|
601 |
|
|
602 |
return r;
|
|
603 |
}
|
|
604 |
|
|
605 |
/**
|
|
606 |
* Calculate the requirements for the major axis. This is called by
|
|
607 |
* the superclass whenever the requirements need to be updated (i.e.
|
|
608 |
* a preferenceChanged was messaged through this view).
|
|
609 |
* <p>
|
|
610 |
* This is implemented to provide the superclass behavior adjusted for
|
|
611 |
* multi-row table cells.
|
|
612 |
*/
|
|
613 |
protected SizeRequirements calculateMajorAxisRequirements(int axis, SizeRequirements r) {
|
|
614 |
updateInsets();
|
|
615 |
rowIterator.updateAdjustments();
|
|
616 |
r = CSS.calculateTiledRequirements(rowIterator, r);
|
|
617 |
r.maximum = r.preferred;
|
|
618 |
return r;
|
|
619 |
}
|
|
620 |
|
|
621 |
/**
|
|
622 |
* Perform layout for the minor axis of the box (i.e. the
|
|
623 |
* axis orthoginal to the axis that it represents). The results
|
|
624 |
* of the layout should be placed in the given arrays which represent
|
|
625 |
* the allocations to the children along the minor axis. This
|
|
626 |
* is called by the superclass whenever the layout needs to be
|
|
627 |
* updated along the minor axis.
|
|
628 |
* <p>
|
|
629 |
* This is implemented to call the
|
|
630 |
* <a href="#layoutColumns">layoutColumns</a> method, and then
|
|
631 |
* forward to the superclass to actually carry out the layout
|
|
632 |
* of the tables rows.
|
|
633 |
*
|
|
634 |
* @param targetSpan the total span given to the view, which
|
|
635 |
* whould be used to layout the children
|
|
636 |
* @param axis the axis being layed out
|
|
637 |
* @param offsets the offsets from the origin of the view for
|
|
638 |
* each of the child views. This is a return value and is
|
|
639 |
* filled in by the implementation of this method
|
|
640 |
* @param spans the span of each child view; this is a return
|
|
641 |
* value and is filled in by the implementation of this method
|
|
642 |
* @return the offset and span for each child view in the
|
|
643 |
* offsets and spans parameters
|
|
644 |
*/
|
|
645 |
protected void layoutMinorAxis(int targetSpan, int axis, int[] offsets, int[] spans) {
|
|
646 |
// make grid is properly represented
|
|
647 |
updateGrid();
|
|
648 |
|
|
649 |
// all of the row layouts are invalid, so mark them that way
|
|
650 |
int n = getRowCount();
|
|
651 |
for (int i = 0; i < n; i++) {
|
|
652 |
RowView row = getRow(i);
|
|
653 |
row.layoutChanged(axis);
|
|
654 |
}
|
|
655 |
|
|
656 |
// calculate column spans
|
|
657 |
layoutColumns(targetSpan, columnOffsets, columnSpans, columnRequirements);
|
|
658 |
|
|
659 |
// continue normal layout
|
|
660 |
super.layoutMinorAxis(targetSpan, axis, offsets, spans);
|
|
661 |
}
|
|
662 |
|
|
663 |
|
|
664 |
/**
|
|
665 |
* Perform layout for the major axis of the box (i.e. the
|
|
666 |
* axis that it represents). The results
|
|
667 |
* of the layout should be placed in the given arrays which represent
|
|
668 |
* the allocations to the children along the minor axis. This
|
|
669 |
* is called by the superclass whenever the layout needs to be
|
|
670 |
* updated along the minor axis.
|
|
671 |
* <p>
|
|
672 |
* This method is where the layout of the table rows within the
|
|
673 |
* table takes place. This method is implemented to call the use
|
|
674 |
* the RowIterator and the CSS collapsing tile to layout
|
|
675 |
* with border spacing and border collapsing capabilities.
|
|
676 |
*
|
|
677 |
* @param targetSpan the total span given to the view, which
|
|
678 |
* whould be used to layout the children
|
|
679 |
* @param axis the axis being layed out
|
|
680 |
* @param offsets the offsets from the origin of the view for
|
|
681 |
* each of the child views; this is a return value and is
|
|
682 |
* filled in by the implementation of this method
|
|
683 |
* @param spans the span of each child view; this is a return
|
|
684 |
* value and is filled in by the implementation of this method
|
|
685 |
* @return the offset and span for each child view in the
|
|
686 |
* offsets and spans parameters
|
|
687 |
*/
|
|
688 |
protected void layoutMajorAxis(int targetSpan, int axis, int[] offsets, int[] spans) {
|
|
689 |
rowIterator.setLayoutArrays(offsets, spans);
|
|
690 |
CSS.calculateTiledLayout(rowIterator, targetSpan);
|
|
691 |
|
|
692 |
if (captionIndex != -1) {
|
|
693 |
// place the caption
|
|
694 |
View caption = getView(captionIndex);
|
|
695 |
int h = (int) caption.getPreferredSpan(Y_AXIS);
|
|
696 |
spans[captionIndex] = h;
|
|
697 |
short boxBottom = (short) painter.getInset(BOTTOM, this);
|
|
698 |
if (boxBottom != getBottomInset()) {
|
|
699 |
offsets[captionIndex] = targetSpan + boxBottom;
|
|
700 |
} else {
|
|
701 |
offsets[captionIndex] = - getTopInset();
|
|
702 |
}
|
|
703 |
}
|
|
704 |
}
|
|
705 |
|
|
706 |
/**
|
|
707 |
* Fetches the child view that represents the given position in
|
|
708 |
* the model. This is implemented to walk through the children
|
|
709 |
* looking for a range that contains the given position. In this
|
|
710 |
* view the children do not necessarily have a one to one mapping
|
|
711 |
* with the child elements.
|
|
712 |
*
|
|
713 |
* @param pos the search position >= 0
|
|
714 |
* @param a the allocation to the table on entry, and the
|
|
715 |
* allocation of the view containing the position on exit
|
|
716 |
* @return the view representing the given position, or
|
|
717 |
* null if there isn't one
|
|
718 |
*/
|
|
719 |
protected View getViewAtPosition(int pos, Rectangle a) {
|
|
720 |
int n = getViewCount();
|
|
721 |
for (int i = 0; i < n; i++) {
|
|
722 |
View v = getView(i);
|
|
723 |
int p0 = v.getStartOffset();
|
|
724 |
int p1 = v.getEndOffset();
|
|
725 |
if ((pos >= p0) && (pos < p1)) {
|
|
726 |
// it's in this view.
|
|
727 |
if (a != null) {
|
|
728 |
childAllocation(i, a);
|
|
729 |
}
|
|
730 |
return v;
|
|
731 |
}
|
|
732 |
}
|
|
733 |
if (pos == getEndOffset()) {
|
|
734 |
View v = getView(n - 1);
|
|
735 |
if (a != null) {
|
|
736 |
this.childAllocation(n - 1, a);
|
|
737 |
}
|
|
738 |
return v;
|
|
739 |
}
|
|
740 |
return null;
|
|
741 |
}
|
|
742 |
|
|
743 |
// --- View methods ---------------------------------------------
|
|
744 |
|
|
745 |
/**
|
|
746 |
* Fetches the attributes to use when rendering. This is
|
|
747 |
* implemented to multiplex the attributes specified in the
|
|
748 |
* model with a StyleSheet.
|
|
749 |
*/
|
|
750 |
public AttributeSet getAttributes() {
|
|
751 |
if (attr == null) {
|
|
752 |
StyleSheet sheet = getStyleSheet();
|
|
753 |
attr = sheet.getViewAttributes(this);
|
|
754 |
}
|
|
755 |
return attr;
|
|
756 |
}
|
|
757 |
|
|
758 |
/**
|
|
759 |
* Renders using the given rendering surface and area on that
|
|
760 |
* surface. This is implemented to delegate to the css box
|
|
761 |
* painter to paint the border and background prior to the
|
|
762 |
* interior. The superclass culls rendering the children
|
|
763 |
* that don't directly intersect the clip and the row may
|
|
764 |
* have cells hanging from a row above in it. The table
|
|
765 |
* does not use the superclass rendering behavior and instead
|
|
766 |
* paints all of the rows and lets the rows cull those
|
|
767 |
* cells not intersecting the clip region.
|
|
768 |
*
|
|
769 |
* @param g the rendering surface to use
|
|
770 |
* @param allocation the allocated region to render into
|
|
771 |
* @see View#paint
|
|
772 |
*/
|
|
773 |
public void paint(Graphics g, Shape allocation) {
|
|
774 |
// paint the border
|
|
775 |
Rectangle a = allocation.getBounds();
|
|
776 |
setSize(a.width, a.height);
|
|
777 |
if (captionIndex != -1) {
|
|
778 |
// adjust the border for the caption
|
|
779 |
short top = (short) painter.getInset(TOP, this);
|
|
780 |
short bottom = (short) painter.getInset(BOTTOM, this);
|
|
781 |
if (top != getTopInset()) {
|
|
782 |
int h = getTopInset() - top;
|
|
783 |
a.y += h;
|
|
784 |
a.height -= h;
|
|
785 |
} else {
|
|
786 |
a.height -= getBottomInset() - bottom;
|
|
787 |
}
|
|
788 |
}
|
|
789 |
painter.paint(g, a.x, a.y, a.width, a.height, this);
|
|
790 |
// paint interior
|
|
791 |
int n = getViewCount();
|
|
792 |
for (int i = 0; i < n; i++) {
|
|
793 |
View v = getView(i);
|
|
794 |
v.paint(g, getChildAllocation(i, allocation));
|
|
795 |
}
|
|
796 |
//super.paint(g, a);
|
|
797 |
}
|
|
798 |
|
|
799 |
/**
|
|
800 |
* Establishes the parent view for this view. This is
|
|
801 |
* guaranteed to be called before any other methods if the
|
|
802 |
* parent view is functioning properly.
|
|
803 |
* <p>
|
|
804 |
* This is implemented
|
|
805 |
* to forward to the superclass as well as call the
|
|
806 |
* <a href="#setPropertiesFromAttributes">setPropertiesFromAttributes</a>
|
|
807 |
* method to set the paragraph properties from the css
|
|
808 |
* attributes. The call is made at this time to ensure
|
|
809 |
* the ability to resolve upward through the parents
|
|
810 |
* view attributes.
|
|
811 |
*
|
|
812 |
* @param parent the new parent, or null if the view is
|
|
813 |
* being removed from a parent it was previously added
|
|
814 |
* to
|
|
815 |
*/
|
|
816 |
public void setParent(View parent) {
|
|
817 |
super.setParent(parent);
|
|
818 |
if (parent != null) {
|
|
819 |
setPropertiesFromAttributes();
|
|
820 |
}
|
|
821 |
}
|
|
822 |
|
|
823 |
/**
|
|
824 |
* Fetches the ViewFactory implementation that is feeding
|
|
825 |
* the view hierarchy.
|
|
826 |
* This replaces the ViewFactory with an implementation that
|
|
827 |
* calls through to the createTableRow and createTableCell
|
|
828 |
* methods. If the element given to the factory isn't a
|
|
829 |
* table row or cell, the request is delegated to the factory
|
|
830 |
* produced by the superclass behavior.
|
|
831 |
*
|
|
832 |
* @return the factory, null if none
|
|
833 |
*/
|
|
834 |
public ViewFactory getViewFactory() {
|
|
835 |
return this;
|
|
836 |
}
|
|
837 |
|
|
838 |
/**
|
|
839 |
* Gives notification that something was inserted into
|
|
840 |
* the document in a location that this view is responsible for.
|
|
841 |
* This replaces the ViewFactory with an implementation that
|
|
842 |
* calls through to the createTableRow and createTableCell
|
|
843 |
* methods. If the element given to the factory isn't a
|
|
844 |
* table row or cell, the request is delegated to the factory
|
|
845 |
* passed as an argument.
|
|
846 |
*
|
|
847 |
* @param e the change information from the associated document
|
|
848 |
* @param a the current allocation of the view
|
|
849 |
* @param f the factory to use to rebuild if the view has children
|
|
850 |
* @see View#insertUpdate
|
|
851 |
*/
|
|
852 |
public void insertUpdate(DocumentEvent e, Shape a, ViewFactory f) {
|
|
853 |
super.insertUpdate(e, a, this);
|
|
854 |
}
|
|
855 |
|
|
856 |
/**
|
|
857 |
* Gives notification that something was removed from the document
|
|
858 |
* in a location that this view is responsible for.
|
|
859 |
* This replaces the ViewFactory with an implementation that
|
|
860 |
* calls through to the createTableRow and createTableCell
|
|
861 |
* methods. If the element given to the factory isn't a
|
|
862 |
* table row or cell, the request is delegated to the factory
|
|
863 |
* passed as an argument.
|
|
864 |
*
|
|
865 |
* @param e the change information from the associated document
|
|
866 |
* @param a the current allocation of the view
|
|
867 |
* @param f the factory to use to rebuild if the view has children
|
|
868 |
* @see View#removeUpdate
|
|
869 |
*/
|
|
870 |
public void removeUpdate(DocumentEvent e, Shape a, ViewFactory f) {
|
|
871 |
super.removeUpdate(e, a, this);
|
|
872 |
}
|
|
873 |
|
|
874 |
/**
|
|
875 |
* Gives notification from the document that attributes were changed
|
|
876 |
* in a location that this view is responsible for.
|
|
877 |
* This replaces the ViewFactory with an implementation that
|
|
878 |
* calls through to the createTableRow and createTableCell
|
|
879 |
* methods. If the element given to the factory isn't a
|
|
880 |
* table row or cell, the request is delegated to the factory
|
|
881 |
* passed as an argument.
|
|
882 |
*
|
|
883 |
* @param e the change information from the associated document
|
|
884 |
* @param a the current allocation of the view
|
|
885 |
* @param f the factory to use to rebuild if the view has children
|
|
886 |
* @see View#changedUpdate
|
|
887 |
*/
|
|
888 |
public void changedUpdate(DocumentEvent e, Shape a, ViewFactory f) {
|
|
889 |
super.changedUpdate(e, a, this);
|
|
890 |
}
|
|
891 |
|
|
892 |
protected void forwardUpdate(DocumentEvent.ElementChange ec,
|
|
893 |
DocumentEvent e, Shape a, ViewFactory f) {
|
|
894 |
super.forwardUpdate(ec, e, a, f);
|
|
895 |
// A change in any of the table cells usually effects the whole table,
|
|
896 |
// so redraw it all!
|
|
897 |
if (a != null) {
|
|
898 |
Component c = getContainer();
|
|
899 |
if (c != null) {
|
|
900 |
Rectangle alloc = (a instanceof Rectangle) ? (Rectangle)a :
|
|
901 |
a.getBounds();
|
|
902 |
c.repaint(alloc.x, alloc.y, alloc.width, alloc.height);
|
|
903 |
}
|
|
904 |
}
|
|
905 |
}
|
|
906 |
|
|
907 |
/**
|
|
908 |
* Change the child views. This is implemented to
|
|
909 |
* provide the superclass behavior and invalidate the
|
|
910 |
* grid so that rows and columns will be recalculated.
|
|
911 |
*/
|
|
912 |
public void replace(int offset, int length, View[] views) {
|
|
913 |
super.replace(offset, length, views);
|
|
914 |
invalidateGrid();
|
|
915 |
}
|
|
916 |
|
|
917 |
// --- ViewFactory methods ------------------------------------------
|
|
918 |
|
|
919 |
/**
|
|
920 |
* The table itself acts as a factory for the various
|
|
921 |
* views that actually represent pieces of the table.
|
|
922 |
* All other factory activity is delegated to the factory
|
|
923 |
* returned by the parent of the table.
|
|
924 |
*/
|
|
925 |
public View create(Element elem) {
|
|
926 |
Object o = elem.getAttributes().getAttribute(StyleConstants.NameAttribute);
|
|
927 |
if (o instanceof HTML.Tag) {
|
|
928 |
HTML.Tag kind = (HTML.Tag) o;
|
|
929 |
if (kind == HTML.Tag.TR) {
|
|
930 |
return createTableRow(elem);
|
|
931 |
} else if ((kind == HTML.Tag.TD) || (kind == HTML.Tag.TH)) {
|
|
932 |
return new CellView(elem);
|
|
933 |
} else if (kind == HTML.Tag.CAPTION) {
|
|
934 |
return new javax.swing.text.html.ParagraphView(elem);
|
|
935 |
}
|
|
936 |
}
|
|
937 |
// default is to delegate to the normal factory
|
|
938 |
View p = getParent();
|
|
939 |
if (p != null) {
|
|
940 |
ViewFactory f = p.getViewFactory();
|
|
941 |
if (f != null) {
|
|
942 |
return f.create(elem);
|
|
943 |
}
|
|
944 |
}
|
|
945 |
return null;
|
|
946 |
}
|
|
947 |
|
|
948 |
// ---- variables ----------------------------------------------------
|
|
949 |
|
|
950 |
private AttributeSet attr;
|
|
951 |
private StyleSheet.BoxPainter painter;
|
|
952 |
|
|
953 |
private int cellSpacing;
|
|
954 |
private int borderWidth;
|
|
955 |
|
|
956 |
/**
|
|
957 |
* The index of the caption view if there is a caption.
|
|
958 |
* This has a value of -1 if there is no caption. The
|
|
959 |
* caption lives in the inset area of the table, and is
|
|
960 |
* updated with each time the grid is recalculated.
|
|
961 |
*/
|
|
962 |
private int captionIndex;
|
|
963 |
|
|
964 |
/**
|
|
965 |
* Do any of the table cells contain a relative size
|
|
966 |
* specification? This is updated with each call to
|
|
967 |
* updateGrid(). If this is true, the ColumnIterator
|
|
968 |
* will do extra work to calculate relative cell
|
|
969 |
* specifications.
|
|
970 |
*/
|
|
971 |
private boolean relativeCells;
|
|
972 |
|
|
973 |
/**
|
|
974 |
* Do any of the table cells span multiple rows? If
|
|
975 |
* true, the RowRequirementIterator will do additional
|
|
976 |
* work to adjust the requirements of rows spanned by
|
|
977 |
* a single table cell. This is updated with each call to
|
|
978 |
* updateGrid().
|
|
979 |
*/
|
|
980 |
private boolean multiRowCells;
|
|
981 |
|
|
982 |
int[] columnSpans;
|
|
983 |
int[] columnOffsets;
|
|
984 |
/**
|
|
985 |
* SizeRequirements for all the columns.
|
|
986 |
*/
|
|
987 |
SizeRequirements totalColumnRequirements;
|
|
988 |
SizeRequirements[] columnRequirements;
|
|
989 |
|
|
990 |
RowIterator rowIterator = new RowIterator();
|
|
991 |
ColumnIterator colIterator = new ColumnIterator();
|
|
992 |
|
|
993 |
Vector rows;
|
|
994 |
|
|
995 |
// whether to display comments inside table or not.
|
|
996 |
boolean skipComments = false;
|
|
997 |
|
|
998 |
boolean gridValid;
|
|
999 |
static final private BitSet EMPTY = new BitSet();
|
|
1000 |
|
|
1001 |
class ColumnIterator implements CSS.LayoutIterator {
|
|
1002 |
|
|
1003 |
/**
|
|
1004 |
* Disable percentage adjustments which should only apply
|
|
1005 |
* when calculating layout, not requirements.
|
|
1006 |
*/
|
|
1007 |
void disablePercentages() {
|
|
1008 |
percentages = null;
|
|
1009 |
}
|
|
1010 |
|
|
1011 |
/**
|
|
1012 |
* Update percentage adjustments if they are needed.
|
|
1013 |
*/
|
|
1014 |
private void updatePercentagesAndAdjustmentWeights(int span) {
|
|
1015 |
adjustmentWeights = new int[columnRequirements.length];
|
|
1016 |
for (int i = 0; i < columnRequirements.length; i++) {
|
|
1017 |
adjustmentWeights[i] = 0;
|
|
1018 |
}
|
|
1019 |
if (relativeCells) {
|
|
1020 |
percentages = new int[columnRequirements.length];
|
|
1021 |
} else {
|
|
1022 |
percentages = null;
|
|
1023 |
}
|
|
1024 |
int nrows = getRowCount();
|
|
1025 |
for (int rowIndex = 0; rowIndex < nrows; rowIndex++) {
|
|
1026 |
RowView row = getRow(rowIndex);
|
|
1027 |
int col = 0;
|
|
1028 |
int ncells = row.getViewCount();
|
|
1029 |
for (int cell = 0; cell < ncells; cell++, col++) {
|
|
1030 |
View cv = row.getView(cell);
|
|
1031 |
for (; row.isFilled(col); col++); // advance to a free column
|
|
1032 |
int rowSpan = getRowsOccupied(cv);
|
|
1033 |
int colSpan = getColumnsOccupied(cv);
|
|
1034 |
AttributeSet a = cv.getAttributes();
|
|
1035 |
CSS.LengthValue lv = (CSS.LengthValue)
|
|
1036 |
a.getAttribute(CSS.Attribute.WIDTH);
|
|
1037 |
if ( lv != null ) {
|
|
1038 |
int len = (int) (lv.getValue(span) / colSpan + 0.5f);
|
|
1039 |
for (int i = 0; i < colSpan; i++) {
|
|
1040 |
if (lv.isPercentage()) {
|
|
1041 |
// add a percentage requirement
|
|
1042 |
percentages[col+i] = Math.max(percentages[col+i], len);
|
|
1043 |
adjustmentWeights[col + i] = Math.max(adjustmentWeights[col + i], WorstAdjustmentWeight);
|
|
1044 |
} else {
|
|
1045 |
adjustmentWeights[col + i] = Math.max(adjustmentWeights[col + i], WorstAdjustmentWeight - 1);
|
|
1046 |
}
|
|
1047 |
}
|
|
1048 |
}
|
|
1049 |
col += colSpan - 1;
|
|
1050 |
}
|
|
1051 |
}
|
|
1052 |
}
|
|
1053 |
|
|
1054 |
/**
|
|
1055 |
* Set the layout arrays to use for holding layout results
|
|
1056 |
*/
|
|
1057 |
public void setLayoutArrays(int offsets[], int spans[], int targetSpan) {
|
|
1058 |
this.offsets = offsets;
|
|
1059 |
this.spans = spans;
|
|
1060 |
updatePercentagesAndAdjustmentWeights(targetSpan);
|
|
1061 |
}
|
|
1062 |
|
|
1063 |
// --- RequirementIterator methods -------------------
|
|
1064 |
|
|
1065 |
public int getCount() {
|
|
1066 |
return columnRequirements.length;
|
|
1067 |
}
|
|
1068 |
|
|
1069 |
public void setIndex(int i) {
|
|
1070 |
col = i;
|
|
1071 |
}
|
|
1072 |
|
|
1073 |
public void setOffset(int offs) {
|
|
1074 |
offsets[col] = offs;
|
|
1075 |
}
|
|
1076 |
|
|
1077 |
public int getOffset() {
|
|
1078 |
return offsets[col];
|
|
1079 |
}
|
|
1080 |
|
|
1081 |
public void setSpan(int span) {
|
|
1082 |
spans[col] = span;
|
|
1083 |
}
|
|
1084 |
|
|
1085 |
public int getSpan() {
|
|
1086 |
return spans[col];
|
|
1087 |
}
|
|
1088 |
|
|
1089 |
public float getMinimumSpan(float parentSpan) {
|
|
1090 |
// do not care for percentages, since min span can't
|
|
1091 |
// be less than columnRequirements[col].minimum,
|
|
1092 |
// but can be less than percentage value.
|
|
1093 |
return columnRequirements[col].minimum;
|
|
1094 |
}
|
|
1095 |
|
|
1096 |
public float getPreferredSpan(float parentSpan) {
|
|
1097 |
if ((percentages != null) && (percentages[col] != 0)) {
|
|
1098 |
return Math.max(percentages[col], columnRequirements[col].minimum);
|
|
1099 |
}
|
|
1100 |
return columnRequirements[col].preferred;
|
|
1101 |
}
|
|
1102 |
|
|
1103 |
public float getMaximumSpan(float parentSpan) {
|
|
1104 |
return columnRequirements[col].maximum;
|
|
1105 |
}
|
|
1106 |
|
|
1107 |
public float getBorderWidth() {
|
|
1108 |
return borderWidth;
|
|
1109 |
}
|
|
1110 |
|
|
1111 |
|
|
1112 |
public float getLeadingCollapseSpan() {
|
|
1113 |
return cellSpacing;
|
|
1114 |
}
|
|
1115 |
|
|
1116 |
public float getTrailingCollapseSpan() {
|
|
1117 |
return cellSpacing;
|
|
1118 |
}
|
|
1119 |
|
|
1120 |
public int getAdjustmentWeight() {
|
|
1121 |
return adjustmentWeights[col];
|
|
1122 |
}
|
|
1123 |
|
|
1124 |
/**
|
|
1125 |
* Current column index
|
|
1126 |
*/
|
|
1127 |
private int col;
|
|
1128 |
|
|
1129 |
/**
|
|
1130 |
* percentage values (may be null since there
|
|
1131 |
* might not be any).
|
|
1132 |
*/
|
|
1133 |
private int[] percentages;
|
|
1134 |
|
|
1135 |
private int[] adjustmentWeights;
|
|
1136 |
|
|
1137 |
private int[] offsets;
|
|
1138 |
private int[] spans;
|
|
1139 |
}
|
|
1140 |
|
|
1141 |
class RowIterator implements CSS.LayoutIterator {
|
|
1142 |
|
|
1143 |
RowIterator() {
|
|
1144 |
}
|
|
1145 |
|
|
1146 |
void updateAdjustments() {
|
|
1147 |
int axis = Y_AXIS;
|
|
1148 |
if (multiRowCells) {
|
|
1149 |
// adjust requirements of multi-row cells
|
|
1150 |
int n = getRowCount();
|
|
1151 |
adjustments = new int[n];
|
|
1152 |
for (int i = 0; i < n; i++) {
|
|
1153 |
RowView rv = getRow(i);
|
|
1154 |
if (rv.multiRowCells == true) {
|
|
1155 |
int ncells = rv.getViewCount();
|
|
1156 |
for (int j = 0; j < ncells; j++) {
|
|
1157 |
View v = rv.getView(j);
|
|
1158 |
int nrows = getRowsOccupied(v);
|
|
1159 |
if (nrows > 1) {
|
|
1160 |
int spanNeeded = (int) v.getPreferredSpan(axis);
|
|
1161 |
adjustMultiRowSpan(spanNeeded, nrows, i);
|
|
1162 |
}
|
|
1163 |
}
|
|
1164 |
}
|
|
1165 |
}
|
|
1166 |
} else {
|
|
1167 |
adjustments = null;
|
|
1168 |
}
|
|
1169 |
}
|
|
1170 |
|
|
1171 |
/**
|
|
1172 |
* Fixup preferences to accomodate a multi-row table cell
|
|
1173 |
* if not already covered by existing preferences. This is
|
|
1174 |
* a no-op if not all of the rows needed (to do this check/fixup)
|
|
1175 |
* have arrived yet.
|
|
1176 |
*/
|
|
1177 |
void adjustMultiRowSpan(int spanNeeded, int nrows, int rowIndex) {
|
|
1178 |
if ((rowIndex + nrows) > getCount()) {
|
|
1179 |
// rows are missing (could be a bad rowspan specification)
|
|
1180 |
// or not all the rows have arrived. Do the best we can with
|
|
1181 |
// the current set of rows.
|
|
1182 |
nrows = getCount() - rowIndex;
|
|
1183 |
if (nrows < 1) {
|
|
1184 |
return;
|
|
1185 |
}
|
|
1186 |
}
|
|
1187 |
int span = 0;
|
|
1188 |
for (int i = 0; i < nrows; i++) {
|
|
1189 |
RowView rv = getRow(rowIndex + i);
|
|
1190 |
span += rv.getPreferredSpan(Y_AXIS);
|
|
1191 |
}
|
|
1192 |
if (spanNeeded > span) {
|
|
1193 |
int adjust = (spanNeeded - span);
|
|
1194 |
int rowAdjust = adjust / nrows;
|
|
1195 |
int firstAdjust = rowAdjust + (adjust - (rowAdjust * nrows));
|
|
1196 |
RowView rv = getRow(rowIndex);
|
|
1197 |
adjustments[rowIndex] = Math.max(adjustments[rowIndex],
|
|
1198 |
firstAdjust);
|
|
1199 |
for (int i = 1; i < nrows; i++) {
|
|
1200 |
adjustments[rowIndex + i] = Math.max(
|
|
1201 |
adjustments[rowIndex + i], rowAdjust);
|
|
1202 |
}
|
|
1203 |
}
|
|
1204 |
}
|
|
1205 |
|
|
1206 |
void setLayoutArrays(int[] offsets, int[] spans) {
|
|
1207 |
this.offsets = offsets;
|
|
1208 |
this.spans = spans;
|
|
1209 |
}
|
|
1210 |
|
|
1211 |
// --- RequirementIterator methods -------------------
|
|
1212 |
|
|
1213 |
public void setOffset(int offs) {
|
|
1214 |
RowView rv = getRow(row);
|
|
1215 |
if (rv != null) {
|
|
1216 |
offsets[rv.viewIndex] = offs;
|
|
1217 |
}
|
|
1218 |
}
|
|
1219 |
|
|
1220 |
public int getOffset() {
|
|
1221 |
RowView rv = getRow(row);
|
|
1222 |
if (rv != null) {
|
|
1223 |
return offsets[rv.viewIndex];
|
|
1224 |
}
|
|
1225 |
return 0;
|
|
1226 |
}
|
|
1227 |
|
|
1228 |
public void setSpan(int span) {
|
|
1229 |
RowView rv = getRow(row);
|
|
1230 |
if (rv != null) {
|
|
1231 |
spans[rv.viewIndex] = span;
|
|
1232 |
}
|
|
1233 |
}
|
|
1234 |
|
|
1235 |
public int getSpan() {
|
|
1236 |
RowView rv = getRow(row);
|
|
1237 |
if (rv != null) {
|
|
1238 |
return spans[rv.viewIndex];
|
|
1239 |
}
|
|
1240 |
return 0;
|
|
1241 |
}
|
|
1242 |
|
|
1243 |
public int getCount() {
|
|
1244 |
return rows.size();
|
|
1245 |
}
|
|
1246 |
|
|
1247 |
public void setIndex(int i) {
|
|
1248 |
row = i;
|
|
1249 |
}
|
|
1250 |
|
|
1251 |
public float getMinimumSpan(float parentSpan) {
|
|
1252 |
return getPreferredSpan(parentSpan);
|
|
1253 |
}
|
|
1254 |
|
|
1255 |
public float getPreferredSpan(float parentSpan) {
|
|
1256 |
RowView rv = getRow(row);
|
|
1257 |
if (rv != null) {
|
|
1258 |
int adjust = (adjustments != null) ? adjustments[row] : 0;
|
|
1259 |
return rv.getPreferredSpan(TableView.this.getAxis()) + adjust;
|
|
1260 |
}
|
|
1261 |
return 0;
|
|
1262 |
}
|
|
1263 |
|
|
1264 |
public float getMaximumSpan(float parentSpan) {
|
|
1265 |
return getPreferredSpan(parentSpan);
|
|
1266 |
}
|
|
1267 |
|
|
1268 |
public float getBorderWidth() {
|
|
1269 |
return borderWidth;
|
|
1270 |
}
|
|
1271 |
|
|
1272 |
public float getLeadingCollapseSpan() {
|
|
1273 |
return cellSpacing;
|
|
1274 |
}
|
|
1275 |
|
|
1276 |
public float getTrailingCollapseSpan() {
|
|
1277 |
return cellSpacing;
|
|
1278 |
}
|
|
1279 |
|
|
1280 |
public int getAdjustmentWeight() {
|
|
1281 |
return 0;
|
|
1282 |
}
|
|
1283 |
|
|
1284 |
/**
|
|
1285 |
* Current row index
|
|
1286 |
*/
|
|
1287 |
private int row;
|
|
1288 |
|
|
1289 |
/**
|
|
1290 |
* Adjustments to the row requirements to handle multi-row
|
|
1291 |
* table cells.
|
|
1292 |
*/
|
|
1293 |
private int[] adjustments;
|
|
1294 |
|
|
1295 |
private int[] offsets;
|
|
1296 |
private int[] spans;
|
|
1297 |
}
|
|
1298 |
|
|
1299 |
/**
|
|
1300 |
* View of a row in a row-centric table.
|
|
1301 |
*/
|
|
1302 |
public class RowView extends BoxView {
|
|
1303 |
|
|
1304 |
/**
|
|
1305 |
* Constructs a TableView for the given element.
|
|
1306 |
*
|
|
1307 |
* @param elem the element that this view is responsible for
|
|
1308 |
*/
|
|
1309 |
public RowView(Element elem) {
|
|
1310 |
super(elem, View.X_AXIS);
|
|
1311 |
fillColumns = new BitSet();
|
|
1312 |
RowView.this.setPropertiesFromAttributes();
|
|
1313 |
}
|
|
1314 |
|
|
1315 |
void clearFilledColumns() {
|
|
1316 |
fillColumns.and(EMPTY);
|
|
1317 |
}
|
|
1318 |
|
|
1319 |
void fillColumn(int col) {
|
|
1320 |
fillColumns.set(col);
|
|
1321 |
}
|
|
1322 |
|
|
1323 |
boolean isFilled(int col) {
|
|
1324 |
return fillColumns.get(col);
|
|
1325 |
}
|
|
1326 |
|
|
1327 |
/**
|
|
1328 |
* The number of columns present in this row.
|
|
1329 |
*/
|
|
1330 |
int getColumnCount() {
|
|
1331 |
int nfill = 0;
|
|
1332 |
int n = fillColumns.size();
|
|
1333 |
for (int i = 0; i < n; i++) {
|
|
1334 |
if (fillColumns.get(i)) {
|
|
1335 |
nfill ++;
|
|
1336 |
}
|
|
1337 |
}
|
|
1338 |
return getViewCount() + nfill;
|
|
1339 |
}
|
|
1340 |
|
|
1341 |
/**
|
|
1342 |
* Fetches the attributes to use when rendering. This is
|
|
1343 |
* implemented to multiplex the attributes specified in the
|
|
1344 |
* model with a StyleSheet.
|
|
1345 |
*/
|
|
1346 |
public AttributeSet getAttributes() {
|
|
1347 |
return attr;
|
|
1348 |
}
|
|
1349 |
|
|
1350 |
View findViewAtPoint(int x, int y, Rectangle alloc) {
|
|
1351 |
int n = getViewCount();
|
|
1352 |
for (int i = 0; i < n; i++) {
|
|
1353 |
if (getChildAllocation(i, alloc).contains(x, y)) {
|
|
1354 |
childAllocation(i, alloc);
|
|
1355 |
return getView(i);
|
|
1356 |
}
|
|
1357 |
}
|
|
1358 |
return null;
|
|
1359 |
}
|
|
1360 |
|
|
1361 |
protected StyleSheet getStyleSheet() {
|
|
1362 |
HTMLDocument doc = (HTMLDocument) getDocument();
|
|
1363 |
return doc.getStyleSheet();
|
|
1364 |
}
|
|
1365 |
|
|
1366 |
/**
|
|
1367 |
* This is called by a child to indicate its
|
|
1368 |
* preferred span has changed. This is implemented to
|
|
1369 |
* execute the superclass behavior and well as try to
|
|
1370 |
* determine if a row with a multi-row cell hangs across
|
|
1371 |
* this row. If a multi-row cell covers this row it also
|
|
1372 |
* needs to propagate a preferenceChanged so that it will
|
|
1373 |
* recalculate the multi-row cell.
|
|
1374 |
*
|
|
1375 |
* @param child the child view
|
|
1376 |
* @param width true if the width preference should change
|
|
1377 |
* @param height true if the height preference should change
|
|
1378 |
*/
|
|
1379 |
public void preferenceChanged(View child, boolean width, boolean height) {
|
|
1380 |
super.preferenceChanged(child, width, height);
|
|
1381 |
if (TableView.this.multiRowCells && height) {
|
|
1382 |
for (int i = rowIndex - 1; i >= 0; i--) {
|
|
1383 |
RowView rv = TableView.this.getRow(i);
|
|
1384 |
if (rv.multiRowCells) {
|
|
1385 |
rv.preferenceChanged(null, false, true);
|
|
1386 |
break;
|
|
1387 |
}
|
|
1388 |
}
|
|
1389 |
}
|
|
1390 |
}
|
|
1391 |
|
|
1392 |
// The major axis requirements for a row are dictated by the column
|
|
1393 |
// requirements. These methods use the value calculated by
|
|
1394 |
// TableView.
|
|
1395 |
protected SizeRequirements calculateMajorAxisRequirements(int axis, SizeRequirements r) {
|
|
1396 |
SizeRequirements req = new SizeRequirements();
|
|
1397 |
req.minimum = totalColumnRequirements.minimum;
|
|
1398 |
req.maximum = totalColumnRequirements.maximum;
|
|
1399 |
req.preferred = totalColumnRequirements.preferred;
|
|
1400 |
req.alignment = 0f;
|
|
1401 |
return req;
|
|
1402 |
}
|
|
1403 |
|
|
1404 |
public float getMinimumSpan(int axis) {
|
|
1405 |
float value;
|
|
1406 |
|
|
1407 |
if (axis == View.X_AXIS) {
|
|
1408 |
value = totalColumnRequirements.minimum + getLeftInset() +
|
|
1409 |
getRightInset();
|
|
1410 |
}
|
|
1411 |
else {
|
|
1412 |
value = super.getMinimumSpan(axis);
|
|
1413 |
}
|
|
1414 |
return value;
|
|
1415 |
}
|
|
1416 |
|
|
1417 |
public float getMaximumSpan(int axis) {
|
|
1418 |
float value;
|
|
1419 |
|
|
1420 |
if (axis == View.X_AXIS) {
|
|
1421 |
// We're flexible.
|
|
1422 |
value = (float)Integer.MAX_VALUE;
|
|
1423 |
}
|
|
1424 |
else {
|
|
1425 |
value = super.getMaximumSpan(axis);
|
|
1426 |
}
|
|
1427 |
return value;
|
|
1428 |
}
|
|
1429 |
|
|
1430 |
public float getPreferredSpan(int axis) {
|
|
1431 |
float value;
|
|
1432 |
|
|
1433 |
if (axis == View.X_AXIS) {
|
|
1434 |
value = totalColumnRequirements.preferred + getLeftInset() +
|
|
1435 |
getRightInset();
|
|
1436 |
}
|
|
1437 |
else {
|
|
1438 |
value = super.getPreferredSpan(axis);
|
|
1439 |
}
|
|
1440 |
return value;
|
|
1441 |
}
|
|
1442 |
|
|
1443 |
public void changedUpdate(DocumentEvent e, Shape a, ViewFactory f) {
|
|
1444 |
super.changedUpdate(e, a, f);
|
|
1445 |
int pos = e.getOffset();
|
|
1446 |
if (pos <= getStartOffset() && (pos + e.getLength()) >=
|
|
1447 |
getEndOffset()) {
|
|
1448 |
RowView.this.setPropertiesFromAttributes();
|
|
1449 |
}
|
|
1450 |
}
|
|
1451 |
|
|
1452 |
/**
|
|
1453 |
* Renders using the given rendering surface and area on that
|
|
1454 |
* surface. This is implemented to delegate to the css box
|
|
1455 |
* painter to paint the border and background prior to the
|
|
1456 |
* interior.
|
|
1457 |
*
|
|
1458 |
* @param g the rendering surface to use
|
|
1459 |
* @param allocation the allocated region to render into
|
|
1460 |
* @see View#paint
|
|
1461 |
*/
|
|
1462 |
public void paint(Graphics g, Shape allocation) {
|
|
1463 |
Rectangle a = (Rectangle) allocation;
|
|
1464 |
painter.paint(g, a.x, a.y, a.width, a.height, this);
|
|
1465 |
super.paint(g, a);
|
|
1466 |
}
|
|
1467 |
|
|
1468 |
/**
|
|
1469 |
* Change the child views. This is implemented to
|
|
1470 |
* provide the superclass behavior and invalidate the
|
|
1471 |
* grid so that rows and columns will be recalculated.
|
|
1472 |
*/
|
|
1473 |
public void replace(int offset, int length, View[] views) {
|
|
1474 |
super.replace(offset, length, views);
|
|
1475 |
invalidateGrid();
|
|
1476 |
}
|
|
1477 |
|
|
1478 |
/**
|
|
1479 |
* Calculate the height requirements of the table row. The
|
|
1480 |
* requirements of multi-row cells are not considered for this
|
|
1481 |
* calculation. The table itself will check and adjust the row
|
|
1482 |
* requirements for all the rows that have multi-row cells spanning
|
|
1483 |
* them. This method updates the multi-row flag that indicates that
|
|
1484 |
* this row and rows below need additional consideration.
|
|
1485 |
*/
|
|
1486 |
protected SizeRequirements calculateMinorAxisRequirements(int axis, SizeRequirements r) {
|
|
1487 |
// return super.calculateMinorAxisRequirements(axis, r);
|
|
1488 |
long min = 0;
|
|
1489 |
long pref = 0;
|
|
1490 |
long max = 0;
|
|
1491 |
multiRowCells = false;
|
|
1492 |
int n = getViewCount();
|
|
1493 |
for (int i = 0; i < n; i++) {
|
|
1494 |
View v = getView(i);
|
|
1495 |
if (getRowsOccupied(v) > 1) {
|
|
1496 |
multiRowCells = true;
|
|
1497 |
max = Math.max((int) v.getMaximumSpan(axis), max);
|
|
1498 |
} else {
|
|
1499 |
min = Math.max((int) v.getMinimumSpan(axis), min);
|
|
1500 |
pref = Math.max((int) v.getPreferredSpan(axis), pref);
|
|
1501 |
max = Math.max((int) v.getMaximumSpan(axis), max);
|
|
1502 |
}
|
|
1503 |
}
|
|
1504 |
|
|
1505 |
if (r == null) {
|
|
1506 |
r = new SizeRequirements();
|
|
1507 |
r.alignment = 0.5f;
|
|
1508 |
}
|
|
1509 |
r.preferred = (int) pref;
|
|
1510 |
r.minimum = (int) min;
|
|
1511 |
r.maximum = (int) max;
|
|
1512 |
return r;
|
|
1513 |
}
|
|
1514 |
|
|
1515 |
/**
|
|
1516 |
* Perform layout for the major axis of the box (i.e. the
|
|
1517 |
* axis that it represents). The results of the layout should
|
|
1518 |
* be placed in the given arrays which represent the allocations
|
|
1519 |
* to the children along the major axis.
|
|
1520 |
* <p>
|
|
1521 |
* This is re-implemented to give each child the span of the column
|
|
1522 |
* width for the table, and to give cells that span multiple columns
|
|
1523 |
* the multi-column span.
|
|
1524 |
*
|
|
1525 |
* @param targetSpan the total span given to the view, which
|
|
1526 |
* whould be used to layout the children
|
|
1527 |
* @param axis the axis being layed out
|
|
1528 |
* @param offsets the offsets from the origin of the view for
|
|
1529 |
* each of the child views; this is a return value and is
|
|
1530 |
* filled in by the implementation of this method
|
|
1531 |
* @param spans the span of each child view; this is a return
|
|
1532 |
* value and is filled in by the implementation of this method
|
|
1533 |
* @return the offset and span for each child view in the
|
|
1534 |
* offsets and spans parameters
|
|
1535 |
*/
|
|
1536 |
protected void layoutMajorAxis(int targetSpan, int axis, int[] offsets, int[] spans) {
|
|
1537 |
int col = 0;
|
|
1538 |
int ncells = getViewCount();
|
|
1539 |
for (int cell = 0; cell < ncells; cell++) {
|
|
1540 |
View cv = getView(cell);
|
|
1541 |
if (skipComments && !(cv instanceof CellView)) {
|
|
1542 |
continue;
|
|
1543 |
}
|
|
1544 |
for (; isFilled(col); col++); // advance to a free column
|
|
1545 |
int colSpan = getColumnsOccupied(cv);
|
|
1546 |
spans[cell] = columnSpans[col];
|
|
1547 |
offsets[cell] = columnOffsets[col];
|
|
1548 |
if (colSpan > 1) {
|
|
1549 |
int n = columnSpans.length;
|
|
1550 |
for (int j = 1; j < colSpan; j++) {
|
|
1551 |
// Because the table may be only partially formed, some
|
|
1552 |
// of the columns may not yet exist. Therefore we check
|
|
1553 |
// the bounds.
|
|
1554 |
if ((col+j) < n) {
|
|
1555 |
spans[cell] += columnSpans[col+j];
|
|
1556 |
spans[cell] += cellSpacing;
|
|
1557 |
}
|
|
1558 |
}
|
|
1559 |
col += colSpan - 1;
|
|
1560 |
}
|
|
1561 |
col++;
|
|
1562 |
}
|
|
1563 |
}
|
|
1564 |
|
|
1565 |
/**
|
|
1566 |
* Perform layout for the minor axis of the box (i.e. the
|
|
1567 |
* axis orthoginal to the axis that it represents). The results
|
|
1568 |
* of the layout should be placed in the given arrays which represent
|
|
1569 |
* the allocations to the children along the minor axis. This
|
|
1570 |
* is called by the superclass whenever the layout needs to be
|
|
1571 |
* updated along the minor axis.
|
|
1572 |
* <p>
|
|
1573 |
* This is implemented to delegate to the superclass, then adjust
|
|
1574 |
* the span for any cell that spans multiple rows.
|
|
1575 |
*
|
|
1576 |
* @param targetSpan the total span given to the view, which
|
|
1577 |
* whould be used to layout the children
|
|
1578 |
* @param axis the axis being layed out
|
|
1579 |
* @param offsets the offsets from the origin of the view for
|
|
1580 |
* each of the child views; this is a return value and is
|
|
1581 |
* filled in by the implementation of this method
|
|
1582 |
* @param spans the span of each child view; this is a return
|
|
1583 |
* value and is filled in by the implementation of this method
|
|
1584 |
* @return the offset and span for each child view in the
|
|
1585 |
* offsets and spans parameters
|
|
1586 |
*/
|
|
1587 |
protected void layoutMinorAxis(int targetSpan, int axis, int[] offsets, int[] spans) {
|
|
1588 |
super.layoutMinorAxis(targetSpan, axis, offsets, spans);
|
|
1589 |
int col = 0;
|
|
1590 |
int ncells = getViewCount();
|
|
1591 |
for (int cell = 0; cell < ncells; cell++, col++) {
|
|
1592 |
View cv = getView(cell);
|
|
1593 |
for (; isFilled(col); col++); // advance to a free column
|
|
1594 |
int colSpan = getColumnsOccupied(cv);
|
|
1595 |
int rowSpan = getRowsOccupied(cv);
|
|
1596 |
if (rowSpan > 1) {
|
|
1597 |
|
|
1598 |
int row0 = rowIndex;
|
|
1599 |
int row1 = Math.min(rowIndex + rowSpan - 1, getRowCount()-1);
|
|
1600 |
spans[cell] = getMultiRowSpan(row0, row1);
|
|
1601 |
}
|
|
1602 |
if (colSpan > 1) {
|
|
1603 |
col += colSpan - 1;
|
|
1604 |
}
|
|
1605 |
}
|
|
1606 |
}
|
|
1607 |
|
|
1608 |
/**
|
|
1609 |
* Determines the resizability of the view along the
|
|
1610 |
* given axis. A value of 0 or less is not resizable.
|
|
1611 |
*
|
|
1612 |
* @param axis may be either View.X_AXIS or View.Y_AXIS
|
|
1613 |
* @return the resize weight
|
|
1614 |
* @exception IllegalArgumentException for an invalid axis
|
|
1615 |
*/
|
|
1616 |
public int getResizeWeight(int axis) {
|
|
1617 |
return 1;
|
|
1618 |
}
|
|
1619 |
|
|
1620 |
/**
|
|
1621 |
* Fetches the child view that represents the given position in
|
|
1622 |
* the model. This is implemented to walk through the children
|
|
1623 |
* looking for a range that contains the given position. In this
|
|
1624 |
* view the children do not necessarily have a one to one mapping
|
|
1625 |
* with the child elements.
|
|
1626 |
*
|
|
1627 |
* @param pos the search position >= 0
|
|
1628 |
* @param a the allocation to the table on entry, and the
|
|
1629 |
* allocation of the view containing the position on exit
|
|
1630 |
* @return the view representing the given position, or
|
|
1631 |
* null if there isn't one
|
|
1632 |
*/
|
|
1633 |
protected View getViewAtPosition(int pos, Rectangle a) {
|
|
1634 |
int n = getViewCount();
|
|
1635 |
for (int i = 0; i < n; i++) {
|
|
1636 |
View v = getView(i);
|
|
1637 |
int p0 = v.getStartOffset();
|
|
1638 |
int p1 = v.getEndOffset();
|
|
1639 |
if ((pos >= p0) && (pos < p1)) {
|
|
1640 |
// it's in this view.
|
|
1641 |
if (a != null) {
|
|
1642 |
childAllocation(i, a);
|
|
1643 |
}
|
|
1644 |
return v;
|
|
1645 |
}
|
|
1646 |
}
|
|
1647 |
if (pos == getEndOffset()) {
|
|
1648 |
View v = getView(n - 1);
|
|
1649 |
if (a != null) {
|
|
1650 |
this.childAllocation(n - 1, a);
|
|
1651 |
}
|
|
1652 |
return v;
|
|
1653 |
}
|
|
1654 |
return null;
|
|
1655 |
}
|
|
1656 |
|
|
1657 |
/**
|
|
1658 |
* Update any cached values that come from attributes.
|
|
1659 |
*/
|
|
1660 |
void setPropertiesFromAttributes() {
|
|
1661 |
StyleSheet sheet = getStyleSheet();
|
|
1662 |
attr = sheet.getViewAttributes(this);
|
|
1663 |
painter = sheet.getBoxPainter(attr);
|
|
1664 |
}
|
|
1665 |
|
|
1666 |
private StyleSheet.BoxPainter painter;
|
|
1667 |
private AttributeSet attr;
|
|
1668 |
|
|
1669 |
/** columns filled by multi-column or multi-row cells */
|
|
1670 |
BitSet fillColumns;
|
|
1671 |
|
|
1672 |
/**
|
|
1673 |
* The row index within the overall grid
|
|
1674 |
*/
|
|
1675 |
int rowIndex;
|
|
1676 |
|
|
1677 |
/**
|
|
1678 |
* The view index (for row index to view index conversion).
|
|
1679 |
* This is set by the updateGrid method.
|
|
1680 |
*/
|
|
1681 |
int viewIndex;
|
|
1682 |
|
|
1683 |
/**
|
|
1684 |
* Does this table row have cells that span multiple rows?
|
|
1685 |
*/
|
|
1686 |
boolean multiRowCells;
|
|
1687 |
|
|
1688 |
}
|
|
1689 |
|
|
1690 |
/**
|
|
1691 |
* Default view of an html table cell. This needs to be moved
|
|
1692 |
* somewhere else.
|
|
1693 |
*/
|
|
1694 |
class CellView extends BlockView {
|
|
1695 |
|
|
1696 |
/**
|
|
1697 |
* Constructs a TableCell for the given element.
|
|
1698 |
*
|
|
1699 |
* @param elem the element that this view is responsible for
|
|
1700 |
*/
|
|
1701 |
public CellView(Element elem) {
|
|
1702 |
super(elem, Y_AXIS);
|
|
1703 |
}
|
|
1704 |
|
|
1705 |
/**
|
|
1706 |
* Perform layout for the major axis of the box (i.e. the
|
|
1707 |
* axis that it represents). The results of the layout should
|
|
1708 |
* be placed in the given arrays which represent the allocations
|
|
1709 |
* to the children along the major axis. This is called by the
|
|
1710 |
* superclass to recalculate the positions of the child views
|
|
1711 |
* when the layout might have changed.
|
|
1712 |
* <p>
|
|
1713 |
* This is implemented to delegate to the superclass to
|
|
1714 |
* tile the children. If the target span is greater than
|
|
1715 |
* was needed, the offsets are adjusted to align the children
|
|
1716 |
* (i.e. position according to the html valign attribute).
|
|
1717 |
*
|
|
1718 |
* @param targetSpan the total span given to the view, which
|
|
1719 |
* whould be used to layout the children
|
|
1720 |
* @param axis the axis being layed out
|
|
1721 |
* @param offsets the offsets from the origin of the view for
|
|
1722 |
* each of the child views; this is a return value and is
|
|
1723 |
* filled in by the implementation of this method
|
|
1724 |
* @param spans the span of each child view; this is a return
|
|
1725 |
* value and is filled in by the implementation of this method
|
|
1726 |
* @return the offset and span for each child view in the
|
|
1727 |
* offsets and spans parameters
|
|
1728 |
*/
|
|
1729 |
protected void layoutMajorAxis(int targetSpan, int axis, int[] offsets, int[] spans) {
|
|
1730 |
super.layoutMajorAxis(targetSpan, axis, offsets, spans);
|
|
1731 |
// calculate usage
|
|
1732 |
int used = 0;
|
|
1733 |
int n = spans.length;
|
|
1734 |
for (int i = 0; i < n; i++) {
|
|
1735 |
used += spans[i];
|
|
1736 |
}
|
|
1737 |
|
|
1738 |
// calculate adjustments
|
|
1739 |
int adjust = 0;
|
|
1740 |
if (used < targetSpan) {
|
|
1741 |
// PENDING(prinz) change to use the css alignment.
|
|
1742 |
String valign = (String) getElement().getAttributes().getAttribute(
|
|
1743 |
HTML.Attribute.VALIGN);
|
|
1744 |
if (valign == null) {
|
|
1745 |
AttributeSet rowAttr = getElement().getParentElement().getAttributes();
|
|
1746 |
valign = (String) rowAttr.getAttribute(HTML.Attribute.VALIGN);
|
|
1747 |
}
|
|
1748 |
if ((valign == null) || valign.equals("middle")) {
|
|
1749 |
adjust = (targetSpan - used) / 2;
|
|
1750 |
} else if (valign.equals("bottom")) {
|
|
1751 |
adjust = targetSpan - used;
|
|
1752 |
}
|
|
1753 |
}
|
|
1754 |
|
|
1755 |
// make adjustments.
|
|
1756 |
if (adjust != 0) {
|
|
1757 |
for (int i = 0; i < n; i++) {
|
|
1758 |
offsets[i] += adjust;
|
|
1759 |
}
|
|
1760 |
}
|
|
1761 |
}
|
|
1762 |
|
|
1763 |
/**
|
|
1764 |
* Calculate the requirements needed along the major axis.
|
|
1765 |
* This is called by the superclass whenever the requirements
|
|
1766 |
* need to be updated (i.e. a preferenceChanged was messaged
|
|
1767 |
* through this view).
|
|
1768 |
* <p>
|
|
1769 |
* This is implemented to delegate to the superclass, but
|
|
1770 |
* indicate the maximum size is very large (i.e. the cell
|
|
1771 |
* is willing to expend to occupy the full height of the row).
|
|
1772 |
*
|
|
1773 |
* @param axis the axis being layed out.
|
|
1774 |
* @param r the requirements to fill in. If null, a new one
|
|
1775 |
* should be allocated.
|
|
1776 |
*/
|
|
1777 |
protected SizeRequirements calculateMajorAxisRequirements(int axis,
|
|
1778 |
SizeRequirements r) {
|
|
1779 |
SizeRequirements req = super.calculateMajorAxisRequirements(axis, r);
|
|
1780 |
req.maximum = Integer.MAX_VALUE;
|
|
1781 |
return req;
|
|
1782 |
}
|
|
1783 |
|
|
1784 |
@Override
|
|
1785 |
protected SizeRequirements calculateMinorAxisRequirements(int axis, SizeRequirements r) {
|
|
1786 |
SizeRequirements rv = super.calculateMinorAxisRequirements(axis, r);
|
|
1787 |
//for the cell the minimum should be derived from the child views
|
|
1788 |
//the parent behaviour is to use CSS for that
|
|
1789 |
int n = getViewCount();
|
|
1790 |
int min = 0;
|
|
1791 |
for (int i = 0; i < n; i++) {
|
|
1792 |
View v = getView(i);
|
|
1793 |
min = Math.max((int) v.getMinimumSpan(axis), min);
|
|
1794 |
}
|
|
1795 |
rv.minimum = Math.min(rv.minimum, min);
|
|
1796 |
return rv;
|
|
1797 |
}
|
|
1798 |
}
|
|
1799 |
|
|
1800 |
|
|
1801 |
}
|