50 lines
1.4 KiB
Java
50 lines
1.4 KiB
Java
package com.bytezone.diskbrowser.visicalc;
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// -----------------------------------------------------------------------------------//
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abstract class ValueFunction extends Function
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// -----------------------------------------------------------------------------------//
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{
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protected Value source;
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abstract double calculateValue ();
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// ---------------------------------------------------------------------------------//
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ValueFunction (Cell cell, String text)
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// ---------------------------------------------------------------------------------//
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{
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super (cell, text);
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source = cell.getExpressionValue (functionText);
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values.add (source);
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valueType = ValueType.NUMBER;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public void calculate ()
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// ---------------------------------------------------------------------------------//
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{
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valueResult = ValueResult.VALID;
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source.calculate ();
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if (!source.isValid ())
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{
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valueResult = source.getValueResult ();
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return;
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}
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value = calculateValue ();
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if (Double.isNaN (value))
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valueResult = ValueResult.ERROR;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public String getType ()
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// ---------------------------------------------------------------------------------//
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{
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return "ValueFunction";
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}
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} |