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Fix for https://bz.apache.org/bugzilla/show_bug.cgi?id=58549 

Thanks to Damian Cugley for the patch.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1710552 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
David North 2015-10-26 10:32:30 +00:00
parent bcaab496b6
commit 128bf66148
2 changed files with 89 additions and 16 deletions
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46
src/java/org/apache/poi/hssf/usermodel/HSSFClientAnchor.java
View File

@ -19,6 +19,7 @@ package org.apache.poi.hssf.usermodel;
import org.apache.poi.ddf.EscherClientAnchorRecord;
import org.apache.poi.ddf.EscherRecord;
import org.apache.poi.ss.SpreadsheetVersion;
import org.apache.poi.ss.usermodel.ClientAnchor;
/**
@ -27,6 +28,9 @@ import org.apache.poi.ss.usermodel.ClientAnchor;
*/
public final class HSSFClientAnchor extends HSSFAnchor implements ClientAnchor {
public static final int MAX_COL = SpreadsheetVersion.EXCEL97.getLastColumnIndex();
public static final int MAX_ROW = SpreadsheetVersion.EXCEL97.getLastRowIndex();
private EscherClientAnchorRecord _escherClientAnchor;
public HSSFClientAnchor(EscherClientAnchorRecord escherClientAnchorRecord) {
@ -63,15 +67,15 @@ public final class HSSFClientAnchor extends HSSFAnchor implements ClientAnchor {
checkRange(dx2, 0, 1023, "dx2");
checkRange(dy1, 0, 255, "dy1");
checkRange(dy2, 0, 255, "dy2");
checkRange(col1, 0, 255, "col1");
checkRange(col2, 0, 255, "col2");
checkRange(row1, 0, 255 * 256, "row1");
checkRange(row2, 0, 255 * 256, "row2");
checkRange(col1, 0, MAX_COL, "col1");
checkRange(col2, 0, MAX_COL, "col2");
checkRange(row1, 0, MAX_ROW, "row1");
checkRange(row2, 0, MAX_ROW, "row2");
setCol1((short) Math.min(col1, col2));
setCol2((short) Math.max(col1, col2));
setRow1((short) Math.min(row1, row2));
setRow2((short) Math.max(row1, row2));
setRow1(Math.min(row1, row2));
setRow2(Math.max(row1, row2));
if (col1 > col2){
_isHorizontallyFlipped = true;
@ -126,7 +130,7 @@ public final class HSSFClientAnchor extends HSSFAnchor implements ClientAnchor {
* @param col1 the column(0 based) of the first cell.
*/
public void setCol1(short col1) {
checkRange(col1, 0, 255, "col1");
checkRange(col1, 0, MAX_COL, "col1");
_escherClientAnchor.setCol1(col1);
}
@ -148,7 +152,7 @@ public final class HSSFClientAnchor extends HSSFAnchor implements ClientAnchor {
* @param col2 the column(0 based) of the second cell.
*/
public void setCol2(short col2) {
checkRange(col2, 0, 255, "col2");
checkRange(col2, 0, MAX_COL, "col2");
_escherClientAnchor.setCol2(col2);
}
@ -163,14 +167,14 @@ public final class HSSFClientAnchor extends HSSFAnchor implements ClientAnchor {
* @return the row(0 based) of the first cell.
*/
public int getRow1() {
return _escherClientAnchor.getRow1();
return unsignedValue(_escherClientAnchor.getRow1());
}
/**
* @param row1 0-based row of the first cell.
*/
public void setRow1(int row1) {
checkRange(row1, 0, 256 * 256, "row1");
checkRange(row1, 0, MAX_ROW, "row1");
_escherClientAnchor.setRow1(Integer.valueOf(row1).shortValue());
}
@ -178,14 +182,14 @@ public final class HSSFClientAnchor extends HSSFAnchor implements ClientAnchor {
* @return the row(0 based) of the second cell.
*/
public int getRow2() {
return _escherClientAnchor.getRow2();
return unsignedValue(_escherClientAnchor.getRow2());
}
/**
* @param row2 the row(0 based) of the second cell.
*/
public void setRow2(int row2) {
checkRange(row2, 0, 256 * 256, "row2");
checkRange(row2, 0, MAX_ROW, "row2");
_escherClientAnchor.setRow2(Integer.valueOf(row2).shortValue());
}
@ -211,10 +215,10 @@ public final class HSSFClientAnchor extends HSSFAnchor implements ClientAnchor {
checkRange(getDx2(), 0, 1023, "dx2");
checkRange(getDy1(), 0, 255, "dy1");
checkRange(getDy2(), 0, 255, "dy2");
checkRange(getCol1(), 0, 255, "col1");
checkRange(getCol2(), 0, 255, "col2");
checkRange(getRow1(), 0, 255 * 256, "row1");
checkRange(getRow2(), 0, 255 * 256, "row2");
checkRange(getCol1(), 0, MAX_COL, "col1");
checkRange(getCol2(), 0, MAX_COL, "col2");
checkRange(getRow1(), 0, MAX_ROW, "row1");
checkRange(getRow2(), 0, MAX_ROW, "row2");
setCol1(col1);
setRow1(row1);
@ -267,6 +271,16 @@ public final class HSSFClientAnchor extends HSSFAnchor implements ClientAnchor {
throw new IllegalArgumentException(varName + " must be between " + minRange + " and " + maxRange + ", but was: " + value);
}
/**
* Given a 16-bit unsigned integer stored in a short, return the unsigned value.
*
* @param s A 16-bit value intended to be interpreted as an unsigned integer.
* @return The value represented by <code>s</code>.
*/
private static int unsignedValue(final short s) {
return (s < 0 ? 0x10000 + s : s);
}
@Override
public boolean equals(Object obj) {
if (obj == null)

59
src/testcases/org/apache/poi/hssf/usermodel/TestHSSFClientAnchor.java
View File

@ -99,4 +99,63 @@ public final class TestHSSFClientAnchor extends TestCase {
assertEquals(ref[i], height, 0);
}
}
/**
* Check {@link HSSFClientAnchor} constructor does not treat 32768 as -32768.
*/
public void testCanHaveRowGreaterThan32767() {
// Maximum permitted row number should be 65535.
HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 0, 0, (short) 0, 32768, (short) 0, 32768);
assertEquals(32768, anchor.getRow1());
assertEquals(32768, anchor.getRow2());
}
/**
* Check the maximum is not set at 255*256 instead of 256*256 - 1.
*/
public void testCanHaveRowUpTo65535() {
HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 0, 0, (short) 0, 65535, (short) 0, 65535);
assertEquals(65535, anchor.getRow1());
assertEquals(65535, anchor.getRow2());
}
public void testCannotHaveRowGreaterThan65535() {
try {
new HSSFClientAnchor(0, 0, 0, 0, (short) 0, 65536, (short) 0, 65536);
fail("Expected IllegalArgumentException to be thrown");
} catch (IllegalArgumentException ex) {
// pass
}
}
/**
* Check the same maximum value enforced when using {@link HSSFClientAnchor#setRow1}.
*/
public void testCanSetRowUpTo65535() {
HSSFClientAnchor anchor = new HSSFClientAnchor();
anchor.setRow1(65535);
anchor.setRow2(65535);
assertEquals(65535, anchor.getRow1());
assertEquals(65535, anchor.getRow2());
}
public void testCannotSetRow1GreaterThan65535() {
try {
new HSSFClientAnchor().setRow1(65536);
fail("Expected IllegalArgumentException to be thrown");
} catch (IllegalArgumentException ex) {
// pass
}
}
public void testCannotSetRow2GreaterThan65535() {
try {
new HSSFClientAnchor().setRow2(65536);
fail("Expected IllegalArgumentException to be thrown");
} catch (IllegalArgumentException ex) {
// pass
}
}
}