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- /* ====================================================================
- Licensed to the Apache Software Foundation (ASF) under one or more
- contributor license agreements. See the NOTICE file distributed with
- this work for additional information regarding copyright ownership.
- The ASF licenses this file to You under the Apache License, Version 2.0
- (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.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- ==================================================================== */
-
- package org.apache.poi.ss.util;
-
- import java.util.EnumSet;
- import java.util.Iterator;
- import java.util.Map;
- import java.util.NoSuchElementException;
- import java.util.Set;
- import java.util.Spliterator;
- import java.util.Spliterators;
- import java.util.function.Supplier;
-
- import org.apache.poi.common.Duplicatable;
- import org.apache.poi.common.usermodel.GenericRecord;
- import org.apache.poi.ss.SpreadsheetVersion;
- import org.apache.poi.ss.usermodel.Cell;
- import org.apache.poi.util.GenericRecordUtil;
-
-
- /**
- * See OOO documentation: excelfileformat.pdf sec 2.5.14 - 'Cell Range Address'<p>
- *
- * Common superclass of 8-bit and 16-bit versions
- */
- public abstract class CellRangeAddressBase implements Iterable<CellAddress>, Duplicatable, GenericRecord {
-
- /**
- * Indicates a cell or range is in the given relative position in a range.
- * More than one of these may apply at once.
- */
- public enum CellPosition {
- /** range starting rows are equal */
- TOP,
- /** range ending rows are equal */
- BOTTOM,
- /** range starting columns are equal */
- LEFT,
- /** range ending columns are equal */
- RIGHT,
- /** a cell or range is completely inside another range, without touching any edges (a cell in this position can't be in any others) */
- INSIDE
- }
- private int _firstRow;
- private int _firstCol;
- private int _lastRow;
- private int _lastCol;
-
- protected CellRangeAddressBase(int firstRow, int lastRow, int firstCol, int lastCol) {
- _firstRow = firstRow;
- _lastRow = lastRow;
- _firstCol = firstCol;
- _lastCol = lastCol;
- }
-
- /**
- * Validate the range limits against the supplied version of Excel
- *
- * @param ssVersion the version of Excel to validate against
- * @throws IllegalArgumentException if the range limits are outside of the allowed range
- */
- public void validate(SpreadsheetVersion ssVersion) {
- validateRow(_firstRow, ssVersion);
- validateRow(_lastRow, ssVersion);
- validateColumn(_firstCol, ssVersion);
- validateColumn(_lastCol, ssVersion);
- }
- /**
- * Runs a bounds check for row numbers
- */
- private static void validateRow(int row, SpreadsheetVersion ssVersion) {
- int maxrow = ssVersion.getLastRowIndex();
- if (row > maxrow) throw new IllegalArgumentException("Maximum row number is " + maxrow);
- if (row < 0) throw new IllegalArgumentException("Minumum row number is 0");
- }
-
- /**
- * Runs a bounds check for column numbers
- */
- private static void validateColumn(int column, SpreadsheetVersion ssVersion) {
- int maxcol = ssVersion.getLastColumnIndex();
- if (column > maxcol) throw new IllegalArgumentException("Maximum column number is " + maxcol);
- if (column < 0) throw new IllegalArgumentException("Minimum column number is 0");
- }
-
-
- //TODO use the correct SpreadsheetVersion
- public final boolean isFullColumnRange() {
- return (_firstRow == 0 && _lastRow == SpreadsheetVersion.EXCEL97.getLastRowIndex())
- || (_firstRow == -1 && _lastRow == -1);
- }
- //TODO use the correct SpreadsheetVersion
- public final boolean isFullRowRange() {
- return (_firstCol == 0 && _lastCol == SpreadsheetVersion.EXCEL97.getLastColumnIndex())
- || (_firstCol == -1 && _lastCol == -1);
- }
-
- /**
- * @return column number for the upper left hand corner
- */
- public final int getFirstColumn() {
- return _firstCol;
- }
-
- /**
- * @return row number for the upper left hand corner
- */
- public final int getFirstRow() {
- return _firstRow;
- }
-
- /**
- * @return column number for the lower right hand corner
- */
- public final int getLastColumn() {
- return _lastCol;
- }
-
- /**
- * @return row number for the lower right hand corner
- */
- public final int getLastRow() {
- return _lastRow;
- }
-
- /**
- * Determines if the given coordinates lie within the bounds
- * of this range.
- *
- * @param rowInd The row, 0-based.
- * @param colInd The column, 0-based.
- * @return True if the coordinates lie within the bounds, false otherwise.
- * @see #intersects(CellRangeAddressBase) for checking if two ranges overlap
- */
- public boolean isInRange(int rowInd, int colInd) {
- return _firstRow <= rowInd && rowInd <= _lastRow && //containsRow
- _firstCol <= colInd && colInd <= _lastCol; //containsColumn
- }
-
- /**
- * Determines if the given {@link CellReference} lies within the bounds
- * of this range.
- * <p>NOTE: It is up to the caller to ensure the reference is
- * for the correct sheet, since this instance doesn't have a sheet reference.
- *
- * @param ref the CellReference to check
- * @return True if the reference lies within the bounds, false otherwise.
- * @see #intersects(CellRangeAddressBase) for checking if two ranges overlap
- */
- public boolean isInRange(CellReference ref) {
- return isInRange(ref.getRow(), ref.getCol());
- }
-
- /**
- * Determines if the given {@link CellAddress} lies within the bounds
- * of this range.
- * <p>NOTE: It is up to the caller to ensure the reference is
- * for the correct sheet, since this instance doesn't have a sheet reference.
- *
- * @param ref the CellAddress to check
- * @return True if the reference lies within the bounds, false otherwise.
- * @see #intersects(CellRangeAddressBase) for checking if two ranges overlap
- */
- public boolean isInRange(CellAddress ref) {
- return isInRange(ref.getRow(), ref.getColumn());
- }
-
- /**
- * Determines if the given {@link Cell} lies within the bounds
- * of this range.
- * <p>NOTE: It is up to the caller to ensure the reference is
- * for the correct sheet, since this instance doesn't have a sheet reference.
- *
- * @param cell the Cell to check
- * @return True if the cell lies within the bounds, false otherwise.
- * @see #intersects(CellRangeAddressBase) for checking if two ranges overlap
- */
- public boolean isInRange(Cell cell) {
- return isInRange(cell.getRowIndex(), cell.getColumnIndex());
- }
-
- /**
- * Check if the row is in the specified cell range
- *
- * @param rowInd the row to check
- * @return true if the range contains the row [rowInd]
- */
- public boolean containsRow(int rowInd) {
- return _firstRow <= rowInd && rowInd <= _lastRow;
- }
-
- /**
- * Check if the column is in the specified cell range
- *
- * @param colInd the column to check
- * @return true if the range contains the column [colInd]
- */
- public boolean containsColumn(int colInd) {
- return _firstCol <= colInd && colInd <= _lastCol;
- }
-
- /**
- * Determines whether or not this CellRangeAddress and the specified CellRangeAddress intersect.
- *
- * @param other a candidate cell range address to check for intersection with this range
- * @return returns true if this range and other range have at least 1 cell in common
- * @see #isInRange(int, int) for checking if a single cell intersects
- */
- public boolean intersects(CellRangeAddressBase other) {
- return this._firstRow <= other._lastRow &&
- this._firstCol <= other._lastCol &&
- other._firstRow <= this._lastRow &&
- other._firstCol <= this._lastCol;
- }
-
- /**
- * Useful for logic like table/range styling, where some elements apply based on relative position in a range.
- * @return set of {@link CellPosition}s occupied by the given coordinates. Empty if the coordinates are not in the range, never null.
- * @since 3.17 beta 1
- */
- public Set<CellPosition> getPosition(int rowInd, int colInd) {
- Set<CellPosition> positions = EnumSet.noneOf(CellPosition.class);
- if (rowInd > getFirstRow() && rowInd < getLastRow() && colInd > getFirstColumn() && colInd < getLastColumn()) {
- positions.add(CellPosition.INSIDE);
- return positions; // entirely inside, matches no boundaries
- }
- // check edges
- if (rowInd == getFirstRow()) positions.add(CellPosition.TOP);
- if (rowInd == getLastRow()) positions.add(CellPosition.BOTTOM);
- if (colInd == getFirstColumn()) positions.add(CellPosition.LEFT);
- if (colInd == getLastColumn()) positions.add(CellPosition.RIGHT);
-
- return positions;
- }
-
- /**
- * @param firstCol column number for the upper left hand corner
- */
- public final void setFirstColumn(int firstCol) {
- _firstCol = firstCol;
- }
-
- /**
- * @param firstRow row number for the upper left hand corner
- */
- public final void setFirstRow(int firstRow) {
- _firstRow = firstRow;
- }
-
- /**
- * @param lastCol column number for the lower right hand corner
- */
- public final void setLastColumn(int lastCol) {
- _lastCol = lastCol;
- }
-
- /**
- * @param lastRow row number for the lower right hand corner
- */
- public final void setLastRow(int lastRow) {
- _lastRow = lastRow;
- }
- /**
- * @return the size of the range (number of cells in the area).
- */
- public int getNumberOfCells() {
- return (_lastRow - _firstRow + 1) * (_lastCol - _firstCol + 1);
- }
-
- /**
- * Returns an iterator over the CellAddresses in this cell range in row-major order.
- * @since POI 4.0.0
- */
- @Override
- public Iterator<CellAddress> iterator() {
- return new RowMajorCellAddressIterator(this);
- }
-
- /**
- * Returns a spliterator over the CellAddresses in this cell range in row-major order.
- * @since POI 5.2.0
- */
- @Override
- public Spliterator<CellAddress> spliterator() {
- return Spliterators.spliterator(iterator(), getNumberOfCells(), 0);
- }
-
- /**
- * Iterates over the cell addresses in a cell range in row major order
- *
- * The iterator is unaffected by changes to the CellRangeAddressBase instance
- * after the iterator is created.
- */
- private static class RowMajorCellAddressIterator implements Iterator<CellAddress> {
- private final int firstRow, firstCol, lastRow, lastCol;
- private int r, c;
-
- public RowMajorCellAddressIterator(CellRangeAddressBase ref) {
- r = firstRow = ref.getFirstRow();
- c = firstCol = ref.getFirstColumn();
- lastRow = ref.getLastRow();
- lastCol = ref.getLastColumn();
-
- // whole row and whole column ranges currently not supported
- if (firstRow < 0) throw new IllegalStateException("First row cannot be negative.");
- if (firstCol < 0) throw new IllegalStateException("First column cannot be negative.");
-
- // avoid infinite iteration
- if (firstRow > lastRow) throw new IllegalStateException("First row cannot be greater than last row.");
- if (firstCol > lastCol) throw new IllegalStateException("First column cannot be greater than last column.");
- }
-
- @Override
- public boolean hasNext() {
- return r <= lastRow && c <= lastCol;
- }
-
- @Override
- public CellAddress next() {
- if (hasNext()) {
- final CellAddress addr = new CellAddress(r, c);
- // row major order
- if (c < lastCol) {
- c++;
- }
- else { //c >= lastCol, end of row reached
- c = firstCol; //CR
- r++; //LF
- }
- return addr;
- }
- throw new NoSuchElementException();
- }
- }
-
- @Override
- public final String toString() {
- CellAddress crA = new CellAddress(_firstRow, _firstCol);
- CellAddress crB = new CellAddress(_lastRow, _lastCol);
- return getClass().getName() + " [" + crA.formatAsString() + ":" + crB.formatAsString() +"]";
- }
-
- // In case _firstRow > _lastRow or _firstCol > _lastCol
- protected int getMinRow() {
- return Math.min(_firstRow, _lastRow);
- }
- protected int getMaxRow() {
- return Math.max(_firstRow, _lastRow);
- }
- protected int getMinColumn() {
- return Math.min(_firstCol, _lastCol);
- }
- protected int getMaxColumn() {
- return Math.max(_firstCol, _lastCol);
- }
-
- @Override
- public boolean equals(Object other) {
- if (other instanceof CellRangeAddressBase) {
- CellRangeAddressBase o = (CellRangeAddressBase) other;
- return ((getMinRow() == o.getMinRow()) &&
- (getMaxRow() == o.getMaxRow()) &&
- (getMinColumn() == o.getMinColumn()) &&
- (getMaxColumn() == o.getMaxColumn()));
- }
- return false;
- }
-
- @Override
- public int hashCode() {
- return (getMinColumn() +
- (getMaxColumn() << 8) +
- (getMinRow() << 16) +
- (getMaxRow() << 24));
- }
-
- @Override
- public Map<String, Supplier<?>> getGenericProperties() {
- return GenericRecordUtil.getGenericProperties(
- "firstRow", this::getFirstRow,
- "firstCol", this::getFirstColumn,
- "lastRow", this::getLastRow,
- "lastCol", this::getLastColumn
- );
- }
- }
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