108 lines
3.3 KiB
Java
108 lines
3.3 KiB
Java
package com.bytezone.diskbrowser.visicalc;
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// -----------------------------------------------------------------------------------//
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class If extends Function
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// -----------------------------------------------------------------------------------//
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{
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private final String conditionText;
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private final String textTrue;
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private final String textFalse;
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private final Condition condition;
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private final Value expTrue;
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private final Value expFalse;
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// ---------------------------------------------------------------------------------//
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If (Cell cell, String text)
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// ---------------------------------------------------------------------------------//
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{
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super (cell, text);
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assert text.startsWith ("@IF(") : text;
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conditionText = Expression.getParameter (functionText);
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int ptr = conditionText.length () + 1;
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if (ptr >= functionText.length ())
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throw new IllegalArgumentException (text);
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textTrue = Expression.getParameter (functionText.substring (ptr));
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ptr = conditionText.length () + textTrue.length () + 2;
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if (ptr >= functionText.length ())
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throw new IllegalArgumentException (text);
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textFalse = Expression.getParameter (functionText.substring (ptr));
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condition = new Condition (cell, conditionText);
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values.add (condition);
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expTrue = new Expression (cell, textTrue).reduce ();
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values.add (expTrue);
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expFalse = new Expression (cell, textFalse).reduce ();
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values.add (expFalse);
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valueType = expTrue.getValueType ();
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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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condition.calculate ();
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if (condition.getBoolean ()) // true
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{
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expTrue.calculate ();
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if (!expTrue.isValid ())
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valueResult = expTrue.getValueResult ();
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else if (valueType == ValueType.NUMBER)
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value = expTrue.getDouble ();
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else
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bool = expTrue.getBoolean ();
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}
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else // false
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{
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expFalse.calculate ();
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if (!expFalse.isValid ())
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valueResult = expTrue.getValueResult ();
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else if (valueType == ValueType.NUMBER)
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value = expFalse.getDouble ();
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else
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bool = expFalse.getBoolean ();
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}
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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 "If";
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public String toString ()
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// ---------------------------------------------------------------------------------//
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{
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StringBuilder text = new StringBuilder ();
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text.append (String.format ("%s%n", LINE));
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text.append (String.format (FMT4, getType (), getFullText (), getValueType (),
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getValueText (this)));
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attach (text, "condition", conditionText, condition);
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if (condition.getBoolean ())
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attach (text, "true", textTrue, expTrue);
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else
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attach (text, "false", textFalse, expFalse);
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return text.toString ();
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}
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} |