// calc the current value of the arithmetic tree
@Override
public final void compute() {
String col =
GeoElementSpreadsheet.getSpreadsheetColumnName(
geo.getLabel(StringTemplate.defaultTemplate));
if (col == null) text.setUndefined();
else text.setTextString(col);
}
/**
* Updates the cell references in text according to a relative copy in the spreadsheet of offset
* (dx,dy) (changes only dependents of value) eg change A1 < 3 to A2 < 3 for a vertical copy
*/
public static String updateCellReferences(GeoElement value, String inputText, int dx, int dy) {
String text = inputText;
StringBuilder before = new StringBuilder();
StringBuilder after = new StringBuilder();
GeoElement[] dependents = getDependentObjects(value);
GeoElement[] dependents2 = new GeoElement[dependents.length + 1];
for (int i = 0; i < dependents.length; ++i) {
dependents2[i] = dependents[i];
}
dependents = dependents2;
dependents[dependents.length - 1] = value;
for (int i = 0; i < dependents.length; ++i) {
String name = dependents[i].getLabel(StringTemplate.defaultTemplate);
MatchResult matcher = GeoElementSpreadsheet.spreadsheetPatternPart.exec(name);
int column = GeoElementSpreadsheet.getSpreadsheetColumn(matcher);
int row = GeoElementSpreadsheet.getSpreadsheetRow(matcher);
if ((column == -1) || (row == -1)) {
continue;
}
String column1 = GeoElementSpreadsheet.getSpreadsheetColumnName(column);
String row1 = "" + (row + 1);
before.setLength(0);
before.append('$');
before.append(column1);
before.append(row1);
after.setLength(0);
after.append('$');
after.append(column1);
after.append("::");
after.append(row1);
text =
replaceAll(
GeoElementSpreadsheet.spreadsheetPatternPart,
text,
before.toString(),
after.toString());
// text = replaceAll(AbstractGeoElementSpreadsheet.spreadsheetPatternPart, text,
// "$" + column1 + row1, "$" + column1 + "::" + row1);
before.setLength(0);
before.append(column1);
before.append('$');
before.append(row1);
after.setLength(0);
after.append("::");
after.append(column1);
after.append('$');
after.append(row1);
text =
replaceAll(
GeoElementSpreadsheet.spreadsheetPatternPart,
text,
before.toString(),
after.toString());
// text = replaceAll(AbstractGeoElementSpreadsheet.spreadsheetPatternPart, text,
// column1 + "$" + row1, "::" + column1 + "$" + row1);
before.setLength(0);
before.append(column1);
before.append(row1);
after.setLength(0);
after.append("::");
after.append(column1);
after.append("::");
after.append(row1);
text =
replaceAll(
GeoElementSpreadsheet.spreadsheetPatternPart,
text,
before.toString(),
after.toString());
// text = replaceAll(AbstractGeoElementSpreadsheet.spreadsheetPatternPart, text,
// column1 + row1, "::" + column1 + "::" + row1);
}
// TODO is this a bug in the regex?
// needed for eg Mod[$A2, B$1] which gives Mod[$A2, ::::B$1]
// =$B$1 BinomialCoefficient[B$2, $A3] gives BinomialCoefficient[::::::B$2, $A::3]
text = text.replace("::::::", "::");
text = text.replace("::::", "::");
MatchResult matcher =
GeoElementSpreadsheet.spreadsheetPatternPart.exec(
value.getLabel(StringTemplate.defaultTemplate));
for (int i = 0; i < dependents.length; ++i) {
String name = dependents[i].getLabel(StringTemplate.defaultTemplate);
matcher = GeoElementSpreadsheet.spreadsheetPatternPart.exec(name);
int column = GeoElementSpreadsheet.getSpreadsheetColumn(matcher);
int row = GeoElementSpreadsheet.getSpreadsheetRow(matcher);
if ((column == -1) || (row == -1)) {
continue;
}
String column1 = GeoElementSpreadsheet.getSpreadsheetColumnName(column);
String row1 = "" + (row + 1);
String column2 = GeoElementSpreadsheet.getSpreadsheetColumnName(column + dx);
String row2 = "" + (row + dy + 1);
before.setLength(0);
before.append("::");
before.append(column1);
before.append("::");
before.append(row1);
after.setLength(0);
after.append(' '); // space important eg 2 E2 not 2E2
after.append(column2);
after.append(row2);
text = replaceAll(pattern2, text, before.toString(), after.toString());
// text = replaceAll(pattern2, text, "::" + column1 + "::" + row1,
// "("+ column2 + row2 + ")");
before.setLength(0);
before.append("$");
before.append(column1);
before.append("::");
before.append(row1);
after.setLength(0);
after.append('$');
after.append(column1);
after.append(row2);
text = replaceAll(pattern2, text, before.toString(), after.toString());
// text = replaceAll(pattern2, text, "$" + column1 + "::" + row1,
// "$" + column1 + row2);
before.setLength(0);
before.append("::");
before.append(column1);
before.append('$');
before.append(row1);
after.setLength(0);
after.append(column2);
after.append('$');
after.append(row1);
text = replaceAll(pattern2, text, before.toString(), after.toString());
// text = replaceAll(pattern2, text, "::" + column1 + "$" + row1,
// column2 + "$" + row1);
}
return text;
}
