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com.itextpdf.layout.renderer.CollapsedTableBorders Maven / Gradle / Ivy
/*
This file is part of the iText (R) project.
Copyright (c) 1998-2019 iText Group NV
Authors: iText Software.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License version 3
as published by the Free Software Foundation with the addition of the
following permission added to Section 15 as permitted in Section 7(a):
FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
OF THIRD PARTY RIGHTS
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program; if not, see http://www.gnu.org/licenses or write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA, 02110-1301 USA, or download the license from the following URL:
http://itextpdf.com/terms-of-use/
The interactive user interfaces in modified source and object code versions
of this program must display Appropriate Legal Notices, as required under
Section 5 of the GNU Affero General Public License.
In accordance with Section 7(b) of the GNU Affero General Public License,
a covered work must retain the producer line in every PDF that is created
or manipulated using iText.
You can be released from the requirements of the license by purchasing
a commercial license. Buying such a license is mandatory as soon as you
develop commercial activities involving the iText software without
disclosing the source code of your own applications.
These activities include: offering paid services to customers as an ASP,
serving PDFs on the fly in a web application, shipping iText with a closed
source product.
For more information, please contact iText Software Corp. at this
address: [email protected]
*/
package com.itextpdf.layout.renderer;
import com.itextpdf.kernel.geom.Rectangle;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import com.itextpdf.layout.borders.Border;
import com.itextpdf.layout.element.Cell;
import com.itextpdf.layout.element.Table;
import com.itextpdf.layout.property.Property;
import java.util.ArrayList;
import java.util.List;
class CollapsedTableBorders extends TableBorders {
private List topBorderCollapseWith = new ArrayList();
private List bottomBorderCollapseWith = new ArrayList();
// region constructors
public CollapsedTableBorders(List rows, int numberOfColumns, Border[] tableBoundingBorders) {
super(rows, numberOfColumns, tableBoundingBorders);
}
public CollapsedTableBorders(List rows, int numberOfColumns, Border[] tableBoundingBorders, int largeTableIndexOffset) {
super(rows, numberOfColumns, tableBoundingBorders, largeTableIndexOffset);
}
// endregion
// region getters
public List getTopBorderCollapseWith() {
return topBorderCollapseWith;
}
public List getBottomBorderCollapseWith() {
return bottomBorderCollapseWith;
}
public float[] getCellBorderIndents(int row, int col, int rowspan, int colspan) {
float[] indents = new float[4];
List borderList;
Border border;
// process top border
borderList = getHorizontalBorder(startRow + row - rowspan + 1);
for (int i = col; i < col + colspan; i++) {
border = borderList.get(i);
if (null != border && border.getWidth() > indents[0]) {
indents[0] = border.getWidth();
}
}
// process right border
borderList = getVerticalBorder(col + colspan);
for (int i = startRow - largeTableIndexOffset + row - rowspan + 1; i < startRow - largeTableIndexOffset + row + 1; i++) {
border = borderList.get(i);
if (null != border && border.getWidth() > indents[1]) {
indents[1] = border.getWidth();
}
}
// process bottom border
borderList = getHorizontalBorder(startRow + row + 1);
for (int i = col; i < col + colspan; i++) {
border = borderList.get(i);
if (null != border && border.getWidth() > indents[2]) {
indents[2] = border.getWidth();
}
}
// process left border
borderList = getVerticalBorder(col);
for (int i = startRow - largeTableIndexOffset + row - rowspan + 1; i < startRow - largeTableIndexOffset + row + 1; i++) {
border = borderList.get(i);
if (null != border && border.getWidth() > indents[3]) {
indents[3] = border.getWidth();
}
}
return indents;
}
public List getVerticalBorder(int index) {
if (index == 0) {
List borderList = TableBorderUtil.createAndFillBorderList(null, tableBoundingBorders[3], verticalBorders.get(0).size());
return getCollapsedList(verticalBorders.get(0), borderList);
} else if (index == numberOfColumns) {
List borderList = TableBorderUtil.createAndFillBorderList(null, tableBoundingBorders[1], verticalBorders.get(0).size());
return getCollapsedList(verticalBorders.get(verticalBorders.size() - 1), borderList);
} else {
return verticalBorders.get(index);
}
}
public List getHorizontalBorder(int index) {
if (index == startRow) {
List firstBorderOnCurrentPage = TableBorderUtil.createAndFillBorderList(topBorderCollapseWith, tableBoundingBorders[0], numberOfColumns);
if (index == largeTableIndexOffset) {
return getCollapsedList(horizontalBorders.get(index - largeTableIndexOffset), firstBorderOnCurrentPage);
}
if (0 != rows.size()) {
int col = 0;
int row = index;
while (col < numberOfColumns) {
if (null != rows.get(row - largeTableIndexOffset)[col] &&
row - index + 1 <= (int) ((Cell) rows.get(row - largeTableIndexOffset)[col].getModelElement()).getRowspan()) {
CellRenderer cell = rows.get(row - largeTableIndexOffset)[col];
Border cellModelTopBorder = TableBorderUtil.getCellSideBorder(((Cell) cell.getModelElement()), Property.BORDER_TOP);
int colspan = (int) cell.getPropertyAsInteger(Property.COLSPAN);
if (null == firstBorderOnCurrentPage.get(col) || (null != cellModelTopBorder && cellModelTopBorder.getWidth() > firstBorderOnCurrentPage.get(col).getWidth())) {
for (int i = col; i < col + colspan; i++) {
firstBorderOnCurrentPage.set(i, cellModelTopBorder);
}
}
col += colspan;
row = index;
} else {
row++;
if (row == rows.size()) {
break;
}
}
}
}
return firstBorderOnCurrentPage;
} else if ((index == finishRow + 1)) {
List lastBorderOnCurrentPage = TableBorderUtil.createAndFillBorderList(bottomBorderCollapseWith, tableBoundingBorders[2], numberOfColumns);
if (index - largeTableIndexOffset == horizontalBorders.size() - 1) {
return getCollapsedList(horizontalBorders.get(index - largeTableIndexOffset), lastBorderOnCurrentPage);
}
if (0 != rows.size()) {
int col = 0;
int row = index - 1;
while (col < numberOfColumns) {
// TODO
if (null != rows.get(row - largeTableIndexOffset)[col]) {
CellRenderer cell = rows.get(row - largeTableIndexOffset)[col];
Border cellModelBottomBorder = TableBorderUtil.getCellSideBorder(((Cell) cell.getModelElement()), Property.BORDER_BOTTOM);
int colspan = (int) cell.getPropertyAsInteger(Property.COLSPAN);
if (null == lastBorderOnCurrentPage.get(col) || (null != cellModelBottomBorder && cellModelBottomBorder.getWidth() > lastBorderOnCurrentPage.get(col).getWidth())) {
for (int i = col; i < col + colspan; i++) {
lastBorderOnCurrentPage.set(i, cellModelBottomBorder);
}
}
col += colspan;
row = index - 1;
} else {
row++;
if (row == rows.size()) {
break;
}
}
}
}
return lastBorderOnCurrentPage;
} else {
return horizontalBorders.get(index - largeTableIndexOffset);
}
}
// endregion
// region setters
public CollapsedTableBorders setTopBorderCollapseWith(List topBorderCollapseWith) {
this.topBorderCollapseWith = new ArrayList();
if (null != topBorderCollapseWith) {
this.topBorderCollapseWith.addAll(topBorderCollapseWith);
}
return this;
}
public CollapsedTableBorders setBottomBorderCollapseWith(List bottomBorderCollapseWith) {
this.bottomBorderCollapseWith = new ArrayList();
if (null != bottomBorderCollapseWith) {
this.bottomBorderCollapseWith.addAll(bottomBorderCollapseWith);
}
return this;
}
//endregion
protected void buildBordersArrays(CellRenderer cell, int row, int col, int[] rowspansToDeduct) {
// We should check if the row number is less than horizontal borders array size. It can happen if the cell with
// big rowspan doesn't fit current area and is going to be placed partial.
if (row > horizontalBorders.size()) {
row--;
}
int currCellColspan = (int) cell.getPropertyAsInteger(Property.COLSPAN);
int nextCellRow;
int j;
// consider the cell on the left side of the current one
if (col != 0 && null == rows.get(row)[col - 1]) {
j = col;
do {
j--;
nextCellRow = row;
while (rows.size() != nextCellRow && null == rows.get(nextCellRow)[j]) {
nextCellRow++;
}
} while (j > 0 && rows.size() != nextCellRow &&
(j + (int) rows.get(nextCellRow)[j].getPropertyAsInteger(Property.COLSPAN) != col ||
(int) nextCellRow - rows.get((int) nextCellRow)[j].getPropertyAsInteger(Property.ROWSPAN) + 1 + rowspansToDeduct[j] != row));
// process only valid cells which hasn't been processed yet
if (j >= 0 && nextCellRow != rows.size() && nextCellRow > row) {
CellRenderer nextCell = rows.get(nextCellRow)[j];
nextCell.setProperty(Property.ROWSPAN, ((int) nextCell.getPropertyAsInteger(Property.ROWSPAN)) - rowspansToDeduct[j]);
int nextCellColspan = (int) nextCell.getPropertyAsInteger(Property.COLSPAN);
for (int i = j; i < j + nextCellColspan; i++) {
rowspansToDeduct[i] = 0;
}
buildBordersArrays(nextCell, nextCellRow, true);
}
}
// consider cells under the current one
j = 0;
while (j < currCellColspan) {
nextCellRow = row + 1;
while (nextCellRow < rows.size() && null == rows.get(nextCellRow)[col + j]) {
nextCellRow++;
}
if (nextCellRow == rows.size()) {
break;
}
CellRenderer nextCell = rows.get(nextCellRow)[col + j];
// otherwise the border was considered previously
if (row == nextCellRow - (int) nextCell.getPropertyAsInteger(Property.ROWSPAN)) {
buildBordersArrays(nextCell, nextCellRow, true);
}
j += (int) nextCell.getPropertyAsInteger(Property.COLSPAN);
}
// consider cells on the right side of the current one
if (col + currCellColspan < rows.get(row).length) {
nextCellRow = row;
while (nextCellRow < rows.size() && null == rows.get(nextCellRow)[col + currCellColspan]) {
nextCellRow++;
}
if (nextCellRow != rows.size()) {
CellRenderer nextCell = rows.get(nextCellRow)[col + currCellColspan];
nextCell.setProperty(Property.ROWSPAN, ((int) nextCell.getPropertyAsInteger(Property.ROWSPAN)) - rowspansToDeduct[col + currCellColspan]);
int nextCellColspan = (int) nextCell.getPropertyAsInteger(Property.COLSPAN);
for (int i = col + currCellColspan; i < col + currCellColspan + nextCellColspan; i++) {
rowspansToDeduct[i] = 0;
}
buildBordersArrays(nextCell, nextCellRow, true);
}
}
// consider current cell
buildBordersArrays(cell, row, false);
}
protected void buildBordersArrays(CellRenderer cell, int row, boolean isNeighbourCell) {
int colspan = (int) cell.getPropertyAsInteger(Property.COLSPAN);
int rowspan = (int) cell.getPropertyAsInteger(Property.ROWSPAN);
int colN = ((Cell) cell.getModelElement()).getCol();
Border[] cellBorders = cell.getBorders();
// cell with big rowspan was splitted
if (row + 1 - rowspan < 0) {
rowspan = row + 1;
}
// consider top border
for (int i = 0; i < colspan; i++) {
checkAndReplaceBorderInArray(horizontalBorders, row + 1 - rowspan, colN + i, cellBorders[0], false);
}
// consider bottom border
for (int i = 0; i < colspan; i++) {
checkAndReplaceBorderInArray(horizontalBorders, row + 1, colN + i, cellBorders[2], true);
}
// consider left border
for (int j = row - rowspan + 1; j <= row; j++) {
checkAndReplaceBorderInArray(verticalBorders, colN, j, cellBorders[3], false);
}
// consider right border
for (int i = row - rowspan + 1; i <= row; i++) {
checkAndReplaceBorderInArray(verticalBorders, colN + colspan, i, cellBorders[1], true);
}
}
// endregion
// region lowlevel
protected boolean checkAndReplaceBorderInArray(List> borderArray, int i, int j, Border borderToAdd, boolean hasPriority) {
// if (borderArray.size() <= i) {
// for (int count = borderArray.size(); count <= i; count++) {
// borderArray.add(new ArrayList());
// }
// }
List borders = borderArray.get(i);
// if (borders.isEmpty()) {
// for (int count = 0; count < j; count++) {
// borders.add(null);
// }
// borders.add(borderToAdd);
// return true;
// }
// if (borders.size() == j) {
// borders.add(borderToAdd);
// return true;
// }
// if (borders.size() < j) {
// for (int count = borders.size(); count <= j; count++) {
// borders.add(count, null);
// }
// }
Border neighbour = borders.get(j);
if (neighbour == null) {
borders.set(j, borderToAdd);
return true;
} else {
if (neighbour != borderToAdd) {
if (borderToAdd != null && neighbour.getWidth() <= borderToAdd.getWidth()) {
if (!hasPriority && neighbour.getWidth() == borderToAdd.getWidth()) {
return false;
}
borders.set(j, borderToAdd);
return true;
}
}
}
return false;
}
// endregion
// region draw
protected TableBorders drawHorizontalBorder(int i, float startX, float y1, PdfCanvas canvas, float[] countedColumnWidth) {
List borders = getHorizontalBorder(startRow /*- largeTableIndexOffset*/ + i);
float x1 = startX;
float x2 = x1 + countedColumnWidth[0];
if (i == 0) {
Border firstBorder = getFirstVerticalBorder().get(startRow - largeTableIndexOffset);
if (firstBorder != null) {
x1 -= firstBorder.getWidth() / 2;
}
} else if (i == finishRow - startRow + 1) {
Border firstBorder = getFirstVerticalBorder().get(startRow - largeTableIndexOffset + finishRow - startRow + 1 - 1);
if (firstBorder != null) {
x1 -= firstBorder.getWidth() / 2;
}
}
int j;
for (j = 1; j < borders.size(); j++) {
Border prevBorder = borders.get(j - 1);
Border curBorder = borders.get(j);
if (prevBorder != null) {
if (!prevBorder.equals(curBorder)) {
prevBorder.drawCellBorder(canvas, x1, y1, x2, y1, Border.Side.NONE);
x1 = x2;
}
} else {
x1 += countedColumnWidth[j - 1];
x2 = x1;
}
if (curBorder != null) {
x2 += countedColumnWidth[j];
}
}
Border lastBorder = borders.size() > j - 1 ? borders.get(j - 1) : null;
if (lastBorder != null) {
if (i == 0) {
if (getVerticalBorder(j).get(startRow - largeTableIndexOffset + i) != null)
x2 += getVerticalBorder(j).get(startRow - largeTableIndexOffset + i).getWidth() / 2;
} else if (i == finishRow - startRow + 1 && getVerticalBorder(j).size() > startRow - largeTableIndexOffset + i - 1 && getVerticalBorder(j).get(startRow - largeTableIndexOffset + i - 1) != null) {
x2 += getVerticalBorder(j).get(startRow - largeTableIndexOffset + i - 1).getWidth() / 2;
}
lastBorder.drawCellBorder(canvas, x1, y1, x2, y1, Border.Side.NONE);
}
return this;
}
protected TableBorders drawVerticalBorder(int i, float startY, float x1, PdfCanvas canvas, List heights) {
List borders = getVerticalBorder(i);
float y1 = startY;
float y2 = y1;
if (!heights.isEmpty()) {
y2 = y1 - (float) heights.get(0);
}
int j;
for (j = 1; j < heights.size(); j++) {
Border prevBorder = borders.get(startRow - largeTableIndexOffset + j - 1);
Border curBorder = borders.get(startRow - largeTableIndexOffset + j);
if (prevBorder != null) {
if (!prevBorder.equals(curBorder)) {
prevBorder.drawCellBorder(canvas, x1, y1, x1, y2, Border.Side.NONE);
y1 = y2;
}
} else {
y1 -= (float) heights.get(j - 1);
y2 = y1;
}
if (curBorder != null) {
y2 -= (float) heights.get(j);
}
}
if (borders.size() == 0) {
return this;
}
Border lastBorder = borders.get(startRow - largeTableIndexOffset + j - 1);
if (lastBorder != null) {
lastBorder.drawCellBorder(canvas, x1, y1, x1, y2, Border.Side.NONE);
}
return this;
}
// endregion
// region static
/**
* Returns the collapsed border. We process collapse
* if the table border width is strictly greater than cell border width.
*
* @param cellBorder cell border
* @param tableBorder table border
* @return the collapsed border
*/
public static Border getCollapsedBorder(Border cellBorder, Border tableBorder) {
if (null != tableBorder) {
if (null == cellBorder || cellBorder.getWidth() < tableBorder.getWidth()) {
return tableBorder;
}
}
if (null != cellBorder) {
return cellBorder;
} else {
return Border.NO_BORDER;
}
}
public static List getCollapsedList(List innerList, List outerList) {
int size = Math.min(null == innerList ? 0 : innerList.size(), null == outerList ? 0 : outerList.size());
List collapsedList = new ArrayList();
for (int i = 0; i < size; i++) {
collapsedList.add(getCollapsedBorder(innerList.get(i), outerList.get(i)));
}
return collapsedList;
}
// endregion
// region occupation
protected TableBorders applyLeftAndRightTableBorder(Rectangle layoutBox, boolean reverse) {
if (null != layoutBox) {
layoutBox.applyMargins(0, rightBorderMaxWidth / 2, 0, leftBorderMaxWidth / 2, reverse);
}
return this;
}
protected TableBorders applyTopTableBorder(Rectangle occupiedBox, Rectangle layoutBox, boolean isEmpty, boolean force, boolean reverse) {
if (!isEmpty) {
return applyTopTableBorder(occupiedBox, layoutBox, reverse);
} else if (force) {
// process empty table
applyTopTableBorder(occupiedBox, layoutBox, reverse);
return applyTopTableBorder(occupiedBox, layoutBox, reverse);
}
return this;
}
protected TableBorders applyBottomTableBorder(Rectangle occupiedBox, Rectangle layoutBox, boolean isEmpty, boolean force, boolean reverse) {
if (!isEmpty) {
return applyBottomTableBorder(occupiedBox, layoutBox, reverse);
} else if (force) {
// process empty table
applyBottomTableBorder(occupiedBox, layoutBox, reverse);
return applyBottomTableBorder(occupiedBox, layoutBox, reverse);
}
return this;
}
protected TableBorders applyTopTableBorder(Rectangle occupiedBox, Rectangle layoutBox, boolean reverse) {
float topIndent = (reverse ? -1 : 1) * getMaxTopWidth();
layoutBox.decreaseHeight(topIndent / 2);
occupiedBox.moveDown(topIndent / 2).increaseHeight(topIndent / 2);
return this;
}
protected TableBorders applyBottomTableBorder(Rectangle occupiedBox, Rectangle layoutBox, boolean reverse) {
float bottomTableBorderWidth = (reverse ? -1 : 1) * getMaxBottomWidth();
layoutBox.decreaseHeight(bottomTableBorderWidth / 2);
occupiedBox.moveDown(bottomTableBorderWidth / 2).increaseHeight(bottomTableBorderWidth / 2);
return this;
}
protected TableBorders applyCellIndents(Rectangle box, float topIndent, float rightIndent, float bottomIndent, float leftIndent, boolean reverse) {
box.applyMargins(topIndent / 2, rightIndent / 2, bottomIndent / 2, leftIndent / 2, false);
return this;
}
protected float getCellVerticalAddition(float[] indents) {
return indents[0] / 2 + indents[2] / 2;
}
// endregion
// region update, footer/header
protected TableBorders updateBordersOnNewPage(boolean isOriginalNonSplitRenderer, boolean isFooterOrHeader, TableRenderer currentRenderer, TableRenderer headerRenderer, TableRenderer footerRenderer) {
if (!isFooterOrHeader) {
// collapse all cell borders
if (isOriginalNonSplitRenderer) {
if (null != rows) {
processAllBordersAndEmptyRows();
rightBorderMaxWidth = getMaxRightWidth();
leftBorderMaxWidth = getMaxLeftWidth();
}
setTopBorderCollapseWith(((Table) currentRenderer.getModelElement()).getLastRowBottomBorder());
} else {
setTopBorderCollapseWith(null);
setBottomBorderCollapseWith(null);
}
}
if (null != footerRenderer) {
float rightFooterBorderWidth = footerRenderer.bordersHandler.getMaxRightWidth();
float leftFooterBorderWidth = footerRenderer.bordersHandler.getMaxLeftWidth();
leftBorderMaxWidth = Math.max(leftBorderMaxWidth, leftFooterBorderWidth);
rightBorderMaxWidth = Math.max(rightBorderMaxWidth, rightFooterBorderWidth);
}
if (null != headerRenderer) {
float rightHeaderBorderWidth = headerRenderer.bordersHandler.getMaxRightWidth();
float leftHeaderBorderWidth = headerRenderer.bordersHandler.getMaxLeftWidth();
leftBorderMaxWidth = Math.max(leftBorderMaxWidth, leftHeaderBorderWidth);
rightBorderMaxWidth = Math.max(rightBorderMaxWidth, rightHeaderBorderWidth);
}
return this;
}
protected TableBorders skipFooter(Border[] borders) {
setTableBoundingBorders(borders);
setBottomBorderCollapseWith(null);
return this;
}
protected TableBorders skipHeader(Border[] borders) {
setTableBoundingBorders(borders);
setTopBorderCollapseWith(null);
return this;
}
protected TableBorders collapseTableWithFooter(TableBorders footerBordersHandler, boolean hasContent) {
((CollapsedTableBorders) footerBordersHandler).setTopBorderCollapseWith(hasContent ? getLastHorizontalBorder() : getTopBorderCollapseWith());
setBottomBorderCollapseWith(footerBordersHandler.getHorizontalBorder(0));
return this;
}
protected TableBorders collapseTableWithHeader(TableBorders headerBordersHandler, boolean updateBordersHandler) {
((CollapsedTableBorders) headerBordersHandler).setBottomBorderCollapseWith(getHorizontalBorder(startRow));
if (updateBordersHandler) {
setTopBorderCollapseWith(headerBordersHandler.getLastHorizontalBorder());
}
return this;
}
protected TableBorders fixHeaderOccupiedArea(Rectangle occupiedBox, Rectangle layoutBox) {
float topBorderMaxWidth = getMaxTopWidth();
layoutBox.increaseHeight(topBorderMaxWidth);
occupiedBox.moveUp(topBorderMaxWidth).decreaseHeight(topBorderMaxWidth);
return this;
}
// endregion
}
