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230
hrmsEjb/jxl/biff/formula/Attribute.java
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230
hrmsEjb/jxl/biff/formula/Attribute.java
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package jxl.biff.formula;
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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 Attribute extends Operator implements ParsedThing {
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private static Logger logger = Logger.getLogger(Attribute.class);
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private int options;
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private int word;
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private WorkbookSettings settings;
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private static final int sumMask = 16;
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private static final int ifMask = 2;
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private static final int gotoMask = 8;
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private VariableArgFunction ifConditions;
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public Attribute(WorkbookSettings ws) {
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this.settings = ws;
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}
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public Attribute(StringFunction sf, WorkbookSettings ws) {
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this.settings = ws;
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if (sf.getFunction(this.settings) == Function.SUM) {
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this.options |= 0x10;
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} else if (sf.getFunction(this.settings) == Function.IF) {
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this.options |= 0x2;
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}
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}
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void setIfConditions(VariableArgFunction vaf) {
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this.ifConditions = vaf;
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this.options |= 0x2;
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}
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public int read(byte[] data, int pos) {
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this.options = data[pos];
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this.word = IntegerHelper.getInt(data[pos + 1], data[pos + 2]);
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return 3;
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}
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public boolean isFunction() {
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return ((this.options & 0x12) != 0);
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}
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public boolean isSum() {
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return ((this.options & 0x10) != 0);
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}
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public boolean isIf() {
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return ((this.options & 0x2) != 0);
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}
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public boolean isGoto() {
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return ((this.options & 0x8) != 0);
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}
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public void getOperands(Stack s) {
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if ((this.options & 0x10) != 0) {
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ParseItem o1 = s.pop();
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add(o1);
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} else if ((this.options & 0x2) != 0) {
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ParseItem o1 = s.pop();
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add(o1);
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}
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}
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public void getString(StringBuffer buf) {
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if ((this.options & 0x10) != 0) {
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ParseItem[] operands = getOperands();
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buf.append(Function.SUM.getName(this.settings));
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buf.append('(');
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operands[0].getString(buf);
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buf.append(')');
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} else if ((this.options & 0x2) != 0) {
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buf.append(Function.IF.getName(this.settings));
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buf.append('(');
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ParseItem[] operands = this.ifConditions.getOperands();
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for (int i = 0; i < operands.length - 1; i++) {
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operands[i].getString(buf);
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buf.append(',');
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}
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operands[operands.length - 1].getString(buf);
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buf.append(')');
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}
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}
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byte[] getBytes() {
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byte[] data = new byte[0];
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if (isSum()) {
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ParseItem[] operands = getOperands();
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for (int i = operands.length - 1; i >= 0; 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 + 4];
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System.arraycopy(data, 0, newdata, 0, data.length);
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newdata[data.length] = Token.ATTRIBUTE.getCode();
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newdata[data.length + 1] = 16;
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data = newdata;
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} else if (isIf()) {
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return getIf();
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}
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return data;
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}
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private byte[] getIf() {
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ParseItem[] operands = this.ifConditions.getOperands();
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int falseOffsetPos = 0;
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int gotoEndPos = 0;
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int numArgs = operands.length;
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byte[] data = operands[0].getBytes();
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int pos = data.length;
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byte[] newdata = new byte[data.length + 4];
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System.arraycopy(data, 0, newdata, 0, data.length);
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data = newdata;
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data[pos] = Token.ATTRIBUTE.getCode();
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data[pos + 1] = 2;
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falseOffsetPos = pos + 2;
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byte[] truedata = operands[1].getBytes();
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newdata = new byte[data.length + truedata.length];
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System.arraycopy(data, 0, newdata, 0, data.length);
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System.arraycopy(truedata, 0, newdata, data.length, truedata.length);
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data = newdata;
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pos = data.length;
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newdata = new byte[data.length + 4];
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System.arraycopy(data, 0, newdata, 0, data.length);
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data = newdata;
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data[pos] = Token.ATTRIBUTE.getCode();
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data[pos + 1] = 8;
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gotoEndPos = pos + 2;
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if (numArgs > 2) {
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IntegerHelper.getTwoBytes(data.length - falseOffsetPos - 2, data, falseOffsetPos);
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byte[] falsedata = operands[numArgs - 1].getBytes();
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newdata = new byte[data.length + falsedata.length];
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System.arraycopy(data, 0, newdata, 0, data.length);
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System.arraycopy(falsedata, 0, newdata, data.length, falsedata.length);
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data = newdata;
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pos = data.length;
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newdata = new byte[data.length + 4];
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System.arraycopy(data, 0, newdata, 0, data.length);
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data = newdata;
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data[pos] = Token.ATTRIBUTE.getCode();
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data[pos + 1] = 8;
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data[pos + 2] = 3;
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}
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pos = data.length;
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newdata = new byte[data.length + 4];
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System.arraycopy(data, 0, newdata, 0, data.length);
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data = newdata;
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data[pos] = Token.FUNCTIONVARARG.getCode();
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data[pos + 1] = (byte)numArgs;
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data[pos + 2] = 1;
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data[pos + 3] = 0;
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int endPos = data.length - 1;
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if (numArgs < 3)
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IntegerHelper.getTwoBytes(endPos - falseOffsetPos - 5, data, falseOffsetPos);
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IntegerHelper.getTwoBytes(endPos - gotoEndPos - 2, data, gotoEndPos);
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return data;
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}
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int getPrecedence() {
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return 3;
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}
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public void adjustRelativeCellReferences(int colAdjust, int rowAdjust) {
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ParseItem[] operands = null;
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if (isIf()) {
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operands = this.ifConditions.getOperands();
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} else {
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operands = getOperands();
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}
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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 = null;
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if (isIf()) {
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operands = this.ifConditions.getOperands();
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} else {
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operands = getOperands();
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}
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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 = null;
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if (isIf()) {
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operands = this.ifConditions.getOperands();
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} else {
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operands = getOperands();
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}
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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 = null;
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if (isIf()) {
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operands = this.ifConditions.getOperands();
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} else {
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operands = getOperands();
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}
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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 = null;
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if (isIf()) {
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operands = this.ifConditions.getOperands();
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} else {
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operands = getOperands();
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}
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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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}
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