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/*
* $Id: PdfPRow.java,v 1.29 2002/07/03 12:06:11 blowagie Exp $
* $Name: $
*
* Copyright 2001, 2002 Paulo Soares
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text.pdf;
import com.lowagie.text.ExceptionConverter;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.Image;
import com.lowagie.text.Rectangle;
import com.lowagie.text.Phrase;
import java.awt.Color;
import java.util.ArrayList;
/**
* A row in a PdfPTable.
*
* @author Paulo Soares (psoares@consiste.pt)
*/
public class PdfPRow {
protected PdfPCell cells[];
protected float widths[];
protected float maxHeight = 0;
protected boolean calculated = false;
public PdfPRow(PdfPCell cells[])
{
this.cells = cells;
widths = new float[cells.length];
}
public PdfPRow(PdfPRow row)
{
maxHeight = row.maxHeight;
calculated = row.calculated;
cells = new PdfPCell[row.cells.length];
for (int k = 0; k < cells.length; ++k) {
if (row.cells[k] != null)
cells[k] = new PdfPCell(row.cells[k]);
}
widths = new float[cells.length];
System.arraycopy(row.widths, 0, widths, 0, cells.length);
}
public boolean setWidths(float widths[])
{
if (widths.length != cells.length)
return false;
System.arraycopy(widths, 0, this.widths, 0, cells.length);
float total = 0;
calculated = false;
for (int k = 0; k < widths.length; ++k) {
PdfPCell cell = cells[k];
cell.setLeft(total);
int last = k + cell.getColspan();
for (; k < last; ++k)
total += widths[k];
--k;
cell.setRight(total);
cell.setTop(0);
}
return true;
}
public float calculateHeights()
{
maxHeight = 0;
for (int k = 0; k < cells.length; ++k) {
PdfPCell cell = cells[k];
if (cell == null)
continue;
PdfPTable table = cell.getTable();
Image img = cell.getImage();
if (img != null) {
img.scalePercent(100);
float scale = (cell.right() - cell.getPaddingRight() - cell.getPaddingLeft() - cell.left()) / img.scaledWidth();
img.scalePercent(scale * 100);
cell.setBottom(cell.top() - cell.getPaddingTop() - cell.getPaddingBottom() - img.scaledHeight());
}
else if (table == null ) {
float rightLimit = cell.isNoWrap() ? 20000 : cell.right() - cell.getPaddingRight();
ColumnText ct = new ColumnText(null);
ct.setSimpleColumn(cell.getPhrase(),
cell.left() + cell.getPaddingLeft(),
cell.top() - cell.getPaddingTop(),
rightLimit,
-20000,
0, cell.getHorizontalAlignment());
ct.setLeading(cell.getLeading(), cell.getMultipliedLeading());
ct.setIndent(cell.getIndent());
ct.setExtraParagraphSpace(cell.getExtraParagraphSpace());
ct.setFollowingIndent(cell.getFollowingIndent());
ct.setRightIndent(cell.getRightIndent());
ct.setRunDirection(cell.getRunDirection());
ct.setArabicOptions(cell.getArabicOptions());
try {
ct.go(true);
}
catch (DocumentException e) {
throw new ExceptionConverter(e);
}
float yLine = ct.getYLine();
if (cell.isUseDescender())
yLine += ct.getDescender();
cell.setBottom(yLine - cell.getPaddingBottom());
}
else {
table.setTotalWidth(cell.right() - cell.getPaddingRight() - cell.getPaddingLeft() - cell.left());
cell.setBottom(cell.top() - cell.getPaddingTop() - cell.getPaddingBottom() - table.getTotalHeight());
}
float height = cell.getFixedHeight();
if (height <= 0)
height = cell.height();
if (height < cell.getFixedHeight())
height = cell.getFixedHeight();
else if (height < cell.getMinimumHeight())
height = cell.getMinimumHeight();
if (height > maxHeight)
maxHeight = height;
}
calculated = true;
return maxHeight;
}
public void writeBorderAndBackgroung(float xPos, float yPos, PdfPCell cell, PdfContentByte[] canvases)
{
PdfContentByte lines = canvases[PdfPTable.LINECANVAS];
PdfContentByte backgr = canvases[PdfPTable.BACKGROUNDCANVAS];
// the coordinates of the border are retrieved
float x1 = cell.left() + xPos;
float y2 = cell.top() + yPos;
float x2 = cell.right() + xPos;
float y1 = y2 - maxHeight;
// the backgroundcolor is set
Color background = cell.backgroundColor();
if (background != null) {
backgr.setColorFill(background);
backgr.rectangle(x1, y1, x2 - x1, y2 - y1);
backgr.fill();
}
else if (cell.grayFill() > 0) {
backgr.setGrayFill(cell.grayFill());
backgr.rectangle(x1, y1, x2 - x1, y2 - y1);
backgr.fill();
}
// if the element hasn't got any borders, nothing is added
if (cell.hasBorders()) {
// the width is set to the width of the element
if (cell.borderWidth() != Rectangle.UNDEFINED) {
lines.setLineWidth(cell.borderWidth());
}
// the color is set to the color of the element
Color color = cell.borderColor();
if (color != null) {
lines.setColorStroke(color);
}
// if the box is a rectangle, it is added as a rectangle
if (cell.hasBorder(Rectangle.BOX)) {
lines.rectangle(x1, y1, x2 - x1, y2 - y1);
}
// if the border isn't a rectangle, the different sides are added apart
else {
if (cell.hasBorder(Rectangle.RIGHT)) {
lines.moveTo(x2, y1);
lines.lineTo(x2, y2);
}
if (cell.hasBorder(Rectangle.LEFT)) {
lines.moveTo(x1, y1);
lines.lineTo(x1, y2);
}
if (cell.hasBorder(Rectangle.BOTTOM)) {
lines.moveTo(x1, y1);
lines.lineTo(x2, y1);
}
if (cell.hasBorder(Rectangle.TOP)) {
lines.moveTo(x1, y2);
lines.lineTo(x2, y2);
}
}
lines.stroke();
if (color != null) {
lines.resetRGBColorStroke();
}
}
}
public void writeCells(int colStart, int colEnd, float xPos, float yPos, PdfContentByte[] canvases)
{
if (!calculated)
calculateHeights();
if (colEnd < 0)
colEnd = cells.length;
colEnd = Math.min(colEnd, cells.length);
if (colStart < 0)
colStart = 0;
if (colStart >= colEnd)
return;
int newStart;
for (newStart = colStart; newStart >= 0; --newStart) {
if (cells[newStart] != null)
break;
xPos -= widths[newStart - 1];
}
xPos -= cells[newStart].left();
for (int k = newStart; k < colEnd; ++k) {
PdfPCell cell = cells[k];
if (cell == null)
continue;
writeBorderAndBackgroung(xPos, yPos, cell, canvases);
PdfPTable table = cell.getTable();
Image img = cell.getImage();
float tly = 0;
boolean alignTop = false;
switch (cell.getVerticalAlignment()) {
case Element.ALIGN_BOTTOM:
tly = cell.top() + yPos - maxHeight + cell.height() - cell.getPaddingTop();
break;
case Element.ALIGN_MIDDLE:
tly = cell.top() + yPos + (cell.height() - maxHeight) / 2 - cell.getPaddingTop();
break;
default:
alignTop = true;
tly = cell.top() + yPos - cell.getPaddingTop();
break;
}
if (img != null) {
boolean vf = false;
if (cell.height() > maxHeight) {
img.scalePercent(100);
float scale = (maxHeight - cell.getPaddingTop() - cell.getPaddingBottom()) / img.scaledHeight();
img.scalePercent(scale * 100);
vf = true;
}
float left = cell.left() + xPos + cell.getPaddingLeft();
if (vf) {
switch (cell.getHorizontalAlignment()) {
case Element.ALIGN_CENTER:
left = xPos + (cell.left() + cell.getPaddingLeft() + cell.right() - cell.getPaddingRight() - img.scaledWidth()) / 2;
break;
case Element.ALIGN_RIGHT:
left = xPos + cell.right() - cell.getPaddingRight() - img.scaledWidth();
break;
default:
break;
}
tly = cell.top() + yPos - cell.getPaddingTop();
}
img.setAbsolutePosition(left, tly - img.scaledHeight());
try {
canvases[PdfPTable.TEXTCANVAS].addImage(img);
}
catch (DocumentException e) {
throw new ExceptionConverter(e);
}
}
else if (table == null) {
float fixedHeight = cell.getFixedHeight();
float rightLimit = cell.right() + xPos - cell.getPaddingRight();
float leftLimit = cell.left() + xPos + cell.getPaddingLeft();
if (cell.isNoWrap()) {
switch (cell.getHorizontalAlignment()) {
case Element.ALIGN_CENTER:
rightLimit += 10000;
leftLimit -= 10000;
break;
case Element.ALIGN_RIGHT:
leftLimit -= 20000;
break;
default:
rightLimit += 20000;
break;
}
}
ColumnText ct = new ColumnText(canvases[PdfPTable.TEXTCANVAS]);
float bry = -20000;
if (fixedHeight > 0) {
if (cell.height() > maxHeight) {
tly = cell.top() + yPos - cell.getPaddingTop();
bry = cell.top() + yPos - maxHeight + cell.getPaddingBottom();
}
}
ct.setSimpleColumn(cell.getPhrase(),
leftLimit,
tly,
rightLimit,
bry,
0, cell.getHorizontalAlignment());
ct.setLeading(cell.getLeading(), cell.getMultipliedLeading());
ct.setIndent(cell.getIndent());
ct.setExtraParagraphSpace(cell.getExtraParagraphSpace());
ct.setFollowingIndent(cell.getFollowingIndent());
ct.setRightIndent(cell.getRightIndent());
ct.setSpaceCharRatio(cell.getSpaceCharRatio());
ct.setRunDirection(cell.getRunDirection());
ct.setArabicOptions(cell.getArabicOptions());
try {
ct.go();
}
catch (DocumentException e) {
throw new ExceptionConverter(e);
}
}
else {
float remainingHeight = 0;
float maxLastRow = 0;
if (alignTop) {
//add by Jin-Hsia Yang, to add remaining height to last row
if (table.size() > 0) {
PdfPRow row = table.getRow(table.size()-1);
remainingHeight = maxHeight-table.getTotalHeight()-cell.getPaddingBottom()-cell.getPaddingTop();
if (remainingHeight > 0) {
maxLastRow = row.getMaxHeights();
row.setMaxHeights(row.getMaxHeights()+ remainingHeight );
//table.setTotalHeight(table.getTotalHeight() + remainingHeight);
}
}
//end add
}
table.writeSelectedRows(0, -1, cell.left() + xPos + cell.getPaddingLeft(),
tly, canvases);
if (alignTop && remainingHeight > 0)
table.getRow(table.size()-1).setMaxHeights(maxLastRow);
}
PdfPCellEvent evt = cell.getCellEvent();
if (evt != null) {
Rectangle rect = new Rectangle(cell.left() + xPos, cell.top() + yPos - maxHeight, cell.right() + xPos, cell.top() + yPos);
evt.cellLayout(cell, rect, canvases);
}
}
}
public boolean isCalculated()
{
return calculated;
}
public float getMaxHeights()
{
if (calculated)
return maxHeight;
else
return calculateHeights();
}
//add by Jin-Hsia Yang
public void setMaxHeights(float maxHeight) {
this.maxHeight=maxHeight;
}
//end add
float[] getEventWidth(float xPos) {
int n = 0;
for (int k = 0; k < cells.length; ++k) {
if (cells[k] != null)
++n;
}
float width[] = new float[n + 1];
n = 0;
width[n++] = xPos;
for (int k = 0; k < cells.length; ++k) {
if (cells[k] != null) {
width[n] = width[n - 1] + cells[k].width();
++n;
}
}
return width;
}
/** split the row into multiple rows that each fit within a given page
* height. Do so by breaking tables into multiple tables
*/
public ArrayList splitToPageSize(float maxWidth, float maxHeight)
{
ArrayList splitRows = new ArrayList();
splitRows.add(this);
for(int i = 0; i < cells.length; i++)
{
float height = cells[i].getFixedHeight();
if (height <= 0)
height = cells[i].height();
if (height < cells[i].getFixedHeight())
height = cells[i].getFixedHeight();
else if (height < cells[i].getMinimumHeight())
height = cells[i].getMinimumHeight();
if(height > maxHeight) {
PdfPTable table = cells[i].getTable();
Image img = cells[i].getImage();
if(img != null) {
//the image will automatically be scaled to fit
continue;
}
else if(table != null) {
//split the table into pieces
ArrayList splitTables = table.splitToPageSize(widths[i] - cells[i].getPaddingLeft() - cells[i].getPaddingRight(), maxHeight - cells[i].getPaddingBottom() - cells[i].getPaddingTop());
if(splitTables.size() == 1) {
cells[i].setTable((PdfPTable)splitTables.get(0));
continue;
}
else {
//create new rows to hold the table pieces if we don't have enough
while(splitTables.size() > splitRows.size()) {
PdfPCell[] newRowCells = new PdfPCell[cells.length];
for(int index = 0; index < newRowCells.length; index++) {
PdfPCell newCell = new PdfPCell(cells[index]);
newCell.setTable(null);
newCell.setImage(null);
newCell.setPhrase(new Phrase(""));
newRowCells[index] = newCell;
}
splitRows.add(new PdfPRow(newRowCells));
}
//add each piece of the table to our new rows
for(int newRowIndex = 0; newRowIndex < splitRows.size(); newRowIndex++) {
((PdfPRow)splitRows.get(newRowIndex)).cells[i].setTable((PdfPTable)splitTables.get(newRowIndex));
}
}
}
else {
//break up a block of text that is larger than a page. This functionality is not yet implimented.
}
}
}
return splitRows;
}
}
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