109 lines
3.4 KiB
Java
109 lines
3.4 KiB
Java
package jxl.biff.formula;
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import common.Assert;
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import common.Logger;
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import java.util.Stack;
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import jxl.WorkbookSettings;
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import jxl.biff.IntegerHelper;
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class BuiltInFunction extends Operator implements ParsedThing {
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private static Logger logger = Logger.getLogger(BuiltInFunction.class);
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private Function function;
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private WorkbookSettings settings;
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public BuiltInFunction(WorkbookSettings ws) {
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this.settings = ws;
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}
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public BuiltInFunction(Function f, WorkbookSettings ws) {
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this.function = f;
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this.settings = ws;
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}
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public int read(byte[] data, int pos) {
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int index = IntegerHelper.getInt(data[pos], data[pos + 1]);
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this.function = Function.getFunction(index);
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Assert.verify((this.function != Function.UNKNOWN), "function code " + index);
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return 2;
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}
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public void getOperands(Stack s) {
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ParseItem[] items = new ParseItem[this.function.getNumArgs()];
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int i;
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for (i = this.function.getNumArgs() - 1; i >= 0; i--) {
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ParseItem pi = s.pop();
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items[i] = pi;
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}
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for (i = 0; i < this.function.getNumArgs(); i++)
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add(items[i]);
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}
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public void getString(StringBuffer buf) {
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buf.append(this.function.getName(this.settings));
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buf.append('(');
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int numArgs = this.function.getNumArgs();
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if (numArgs > 0) {
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ParseItem[] operands = getOperands();
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operands[0].getString(buf);
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for (int i = 1; i < numArgs; i++) {
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buf.append(',');
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operands[i].getString(buf);
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}
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}
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buf.append(')');
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}
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public void adjustRelativeCellReferences(int colAdjust, int rowAdjust) {
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ParseItem[] operands = getOperands();
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for (int i = 0; i < operands.length; i++)
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operands[i].adjustRelativeCellReferences(colAdjust, rowAdjust);
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}
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void columnInserted(int sheetIndex, int col, boolean currentSheet) {
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ParseItem[] operands = getOperands();
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for (int i = 0; i < operands.length; i++)
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operands[i].columnInserted(sheetIndex, col, currentSheet);
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}
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void columnRemoved(int sheetIndex, int col, boolean currentSheet) {
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ParseItem[] operands = getOperands();
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for (int i = 0; i < operands.length; i++)
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operands[i].columnRemoved(sheetIndex, col, currentSheet);
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}
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void rowInserted(int sheetIndex, int row, boolean currentSheet) {
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ParseItem[] operands = getOperands();
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for (int i = 0; i < operands.length; i++)
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operands[i].rowInserted(sheetIndex, row, currentSheet);
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}
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void rowRemoved(int sheetIndex, int row, boolean currentSheet) {
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ParseItem[] operands = getOperands();
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for (int i = 0; i < operands.length; i++)
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operands[i].rowRemoved(sheetIndex, row, currentSheet);
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}
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byte[] getBytes() {
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ParseItem[] operands = getOperands();
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byte[] data = new byte[0];
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for (int i = 0; i < operands.length; i++) {
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byte[] opdata = operands[i].getBytes();
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byte[] arrayOfByte1 = new byte[data.length + opdata.length];
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System.arraycopy(data, 0, arrayOfByte1, 0, data.length);
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System.arraycopy(opdata, 0, arrayOfByte1, data.length, opdata.length);
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data = arrayOfByte1;
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}
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byte[] newdata = new byte[data.length + 3];
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System.arraycopy(data, 0, newdata, 0, data.length);
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newdata[data.length] = !useAlternateCode() ? Token.FUNCTION.getCode() : Token.FUNCTION.getCode2();
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IntegerHelper.getTwoBytes(this.function.getCode(), newdata, data.length + 1);
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return newdata;
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}
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int getPrecedence() {
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return 3;
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}
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}
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