/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.css2.layout.table;
import java.util.List;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.LayoutManager;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.jst.pagedesigner.css2.ICSSStyle;
import org.eclipse.jst.pagedesigner.css2.layout.CSSFigure;
import org.eclipse.jst.pagedesigner.css2.layout.FlowBox;
import org.eclipse.jst.pagedesigner.css2.layout.LineBox;
import org.eclipse.jst.pagedesigner.css2.property.ICSSPropertyID;
import org.eclipse.jst.pagedesigner.css2.property.VerticalAlignMeta;
/**
* This layout is for those thigns that it's parent will decide its size. Such
* as table cell.
*
* @author mengbo
* @version 1.5
*/
public class CSSTableCellLayout extends CachedTableCellLayout {
private CSSTableLayout2 _tableLayout;
private TableRowInfo _rowinfo;
private TableCellInfo _cellinfo;
/**
* @param cssfigure
*/
public CSSTableCellLayout(CSSFigure cssfigure) {
super(cssfigure);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.css2.layout.FlowFigureLayout#invalidate()
*/
public void invalidate() {
super.invalidate();
_tableLayout = null;
_rowinfo = null;
_cellinfo = null;
}
protected void endBlock() {
if (isTable()) {
verticalLayoutLines();
layoutLines();
} else {
super.endBlock();
}
}
/**
* process the vertical layout lines
*/
protected void verticalLayoutLines() {
List lines = _blockBox.getFragments();
String verticalStyle = getVerticalAlign();
int linesHeight = 0;
if (lines != null && !lines.isEmpty()) {
FlowBox bottomBox = ((FlowBox) lines.get(lines.size() - 1));
FlowBox topBox = ((FlowBox) lines.get(0));
linesHeight = bottomBox.getY() + bottomBox.getHeight() - topBox.getY();
}
int movement = 0;
if (VerticalAlignMeta.BOTTOM.equals(verticalStyle)) {
movement = _blockBox.getHeight() - linesHeight
- _blockBox.getBorderPaddingHeight() / 2;
} else if (VerticalAlignMeta.TOP.equals(verticalStyle)) {
movement = 0;
}
// else if (VerticalAlignMeta.BASELINE.equals(verticalStyle))
// {
// movement = _blockBox.getHeight() - linesHeight;
// }
else // if (VerticalAlignMeta.MIDDLE.equals(verticalStyle))
{
movement = (_blockBox.getHeight() - linesHeight - _blockBox
.getBorderPaddingHeight()) / 2;
}
// VerticalAlignMeta.TOP, ICSSPropertyID.VAL_AUTO and others
// else
// {
// movement = 0;
// }
if (lines != null) {
for (int i = 0, n = lines.size(); i < n; i++) {
if (lines.get(i) instanceof LineBox) {
LineBox lineBox = (LineBox) lines.get(i);
int LineMovement = Math.max(lineBox.getMarginInsets()
.getHeight(), movement);
lineBox.setY(lineBox.getY() + LineMovement
- lineBox.getMarginInsets().getHeight());
}
}
}
}
private String getVerticalAlign() {
ICSSStyle style = getCSSStyle();
if (style != null) {
return style.getStyleProperty(ICSSPropertyID.ATTR_VERTICAL_ALIGN)
.toString();
}
return VerticalAlignMeta.MIDDLE;
}
public Rectangle getCellRect() {
int columnIndex = _cellinfo.getColumnIndex();
int rowIndex = _cellinfo.getRowIndex();
int[] columnWidths = _tableLayout.getColumnWidths();
int hspacing = _tableLayout.getHSpacing();
int x = hspacing;
for (int col = 0; col < columnIndex; col++) {
x += columnWidths[col];
x += hspacing;
}
int[] rowHeights = _tableLayout.getRowHeights();
int vspacing = _tableLayout.getVSpacing();
int y = vspacing;
for (int row = 0; row < rowIndex; row++) {
y += rowHeights[row];
y += vspacing;
}
if (_tableLayout.getCaptionInfo() != null
&& "top".equalsIgnoreCase(_tableLayout.getCaptionInfo().getAlign())) //$NON-NLS-1$
{
y += _tableLayout.getCaptionSize().height;
}
int width = _tableLayout.getCellWidth(_cellinfo, columnWidths);
int height = _tableLayout.getCellHeight(_cellinfo, rowHeights);
Rectangle rect = new Rectangle(x, y, width, height);
return rect;
}
/**
* the parent figure of TRGroup should be table figure. If so, return the
* corresponding table layout.
*
* @return the table layout context
*/
public CSSTableLayout2 getTableLayoutContext() {
IFigure parent = getCSSFigure().getParent();
if (parent != null) {
LayoutManager parentLayout = parent.getLayoutManager();
if (parentLayout instanceof CSSTRLayout) {
return ((CSSTRLayout) parentLayout).getTableLayoutContext();
}
}
return null;
}
/**
* @return true if the table layout has cell info
*/
public boolean initializeTableInfo() {
_rowinfo = null;
_cellinfo = null;
_tableLayout = getTableLayoutContext();
if (_tableLayout != null) {
_rowinfo = _tableLayout.getRowInfo((CSSFigure) this.getCSSFigure()
.getParent());
if (_rowinfo != null) {
_cellinfo = _rowinfo.getCellInfo(this.getCSSFigure());
if (_cellinfo != null) {
return true;
}
}
}
return false;
}
/**
* @return the table layout or nul if none
*/
public CSSTableLayout2 getTableLayout() {
return _tableLayout;
}
/**
* @return the table cell info or null
*/
public TableCellInfo getTableCellInfo() {
return _cellinfo;
}
}