/**
* SQL-DK
* Copyright © 2014 František Kučera (frantovo.cz)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package info.globalcode.sql.dk.formatting;
import info.globalcode.sql.dk.ColorfulPrintWriter.TerminalColor;
import java.util.ArrayList;
import java.util.List;
import static info.globalcode.sql.dk.Functions.lpad;
import static info.globalcode.sql.dk.Functions.rpad;
import static info.globalcode.sql.dk.Functions.repeat;
/**
* Longer values are line-wrapped – the cell then contains multiple lines. Marks are added to
* signalize forced line ends (not present in original data).
*
* @author Ing. František Kučera (frantovo.cz)
*/
public class TabularWrappingFormatter extends TabularFormatter {
public static final String NAME = "tabular-wrapping"; // bash-completion:formatter
private List<String[]> currentRow;
public TabularWrappingFormatter(FormatterContext formatterContext) {
super(formatterContext);
}
@Override
public void writeStartResultSet(ColumnsHeader header) {
super.writeStartResultSet(header);
currentRow = new ArrayList<>(header.getColumnCount());
}
@Override
protected void writeColumnValueInternal(Object value) {
boolean rightAlign = value instanceof Number || value instanceof Boolean;
String valueString = String.valueOf(value);
int columnWidth = getColumnWidth(getCurrentColumnsCount()) - 1; // -1 = space for new line symbol
currentRow.add(wrapLines(valueString, columnWidth, rightAlign));
}
@Override
public void writeEndRow() {
super.writeEndRow();
int wrappedLine = 0;
boolean hasMoreWrappedLines;
do {
hasMoreWrappedLines = false;
for (int i = 0; i < currentRow.size(); i++) {
if (i == 0) {
printTableIndent();
printTableBorder("│ ");
} else {
printTableBorder(" │ ");
}
String[] columnArray = currentRow.get(i);
if (wrappedLine < columnArray.length) {
printValueWithNewLinesReplaced(columnArray[wrappedLine]);
if (wrappedLine < columnArray.length - 1) {
out.print(TerminalColor.Red, "↩");
hasMoreWrappedLines = true;
} else {
out.print(" ");
}
} else {
out.print(repeat(' ', getColumnWidth(i + 1)));
}
if (i == (currentRow.size() - 1)) {
printTableBorder(" │");
}
}
out.println();
out.flush();
wrappedLine++;
} while (hasMoreWrappedLines);
currentRow.clear();
}
@Override
public void writeEndRowInternal() {
// already done – wrapped row ends
}
private static String[] wrapLines(String s, int width, boolean rightAlign) {
String[] array = new String[(s.length() - 1) / width + 1];
for (int i = 0; i < array.length; i++) {
if (i == array.length - 1) {
String part = s.substring(i * width, s.length());
array[i] = rightAlign ? lpad(part, width) : rpad(part, width);
} else {
array[i] = s.substring(i * width, (i + 1) * width);
}
}
return array;
}
}