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Bugzilla 46818 (patch from Wayne Clingingsmith) - added implementation for HYPERLINK function 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@760343 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Josh Micich 2009-03-31 06:09:06 +00:00
parent d92e7179bf
commit 2d91c7b31f
1 changed files with 52 additions and 21 deletions
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73
src/java/org/apache/poi/hssf/record/formula/functions/Hyperlink.java
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@ -1,25 +1,56 @@
/* /* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one or more Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0 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 not use this file except in compliance with
* the License. You may obtain a copy of the License at the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0 http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and See the License for the specific language governing permissions and
* limitations under the License. limitations under the License.
*/ ==================================================================== */
/*
* Created on May 15, 2005
*
*/
package org.apache.poi.hssf.record.formula.functions; package org.apache.poi.hssf.record.formula.functions;
public class Hyperlink extends NotImplementedFunction { import org.apache.poi.hssf.record.formula.eval.ErrorEval;
import org.apache.poi.hssf.record.formula.eval.Eval;
import org.apache.poi.hssf.record.formula.eval.EvaluationException;
import org.apache.poi.hssf.record.formula.eval.OperandResolver;
import org.apache.poi.hssf.record.formula.eval.StringEval;
/**
* Implementation of Excel HYPERLINK function.<p/>
*
* In Excel this function has special behaviour - it causes the displayed cell value to behave like
* a hyperlink in the GUI. From an evaluation perspective however, it is very simple.<p/>
*
* <b>Syntax</b>:<br/>
* <b>HYPERLINK</b>(<b>link_location</b>, friendly_name)<p/>
*
* <b>link_location</b> The URL of the hyperlink <br/>
* <b>friendly_name</b> (optional) the value to display<p/>
*
* Returns last argument. Leaves type unchanged (does not convert to {@link StringEval}).
* @author Wayne Clingingsmith
*/
public class Hyperlink implements Function {
public Eval evaluate(Eval[] operands, int srcRow, short srcCol) {
int lastArgIx = operands.length - 1;
if (lastArgIx < 0 || lastArgIx > 1) {
return ErrorEval.VALUE_INVALID;
}
try {
return OperandResolver.getSingleValue(operands[lastArgIx], srcRow, srcCol);
} catch (EvaluationException e) {
return e.getErrorEval();
}
}
} }