diff -r 7e08730da258 -r 4a1864c3e867 java/sql-dk/src/main/java/info/globalcode/sql/dk/formatting/BarChartFormatter.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/java/sql-dk/src/main/java/info/globalcode/sql/dk/formatting/BarChartFormatter.java Mon Mar 04 20:15:24 2019 +0100
@@ -0,0 +1,104 @@
+/**
+ * SQL-DK
+ * Copyright © 2015 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 .
+ */
+package info.globalcode.sql.dk.formatting;
+
+import info.globalcode.sql.dk.Functions;
+import info.globalcode.sql.dk.configuration.PropertyDeclaration;
+import info.globalcode.sql.dk.logging.LoggerProducer;
+import java.math.BigDecimal;
+import java.math.MathContext;
+import java.math.RoundingMode;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * TODO: min/max values – range for case that no value is 100 %
+ *
+ * TODO: multiple barcharts in same table (last column is still default) + multiple resultsets
+ *
+ * TODO: negative values - bar starting from the middle, not always from the left
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+@PropertyDeclaration(name = BarChartFormatter.PROPERTY_PRECISION, type = Integer.class, defaultValue = BarChartFormatter.PROPERTY_PRECISION_DEFAULT, description = "number of characters representing 100 % in the bar chart")
+public class BarChartFormatter extends TabularPrefetchingFormatter {
+
+ public static final String NAME = "barchart"; // bash-completion:formatter
+ public static final String PROPERTY_PRECISION = "precision";
+ protected static final String PROPERTY_PRECISION_DEFAULT = "100";
+ private static final MathContext mathContext = MathContext.DECIMAL128;
+ public static final Logger log = LoggerProducer.getLogger();
+ private final BigDecimal chartPrecision;
+ private final char chartFull;
+ private final char chartEmpty;
+
+ public BarChartFormatter(FormatterContext formatterContext) {
+ super(formatterContext);
+ chartPrecision = BigDecimal.valueOf(formatterContext.getProperties().getInteger(PROPERTY_PRECISION, Integer.parseInt(PROPERTY_PRECISION_DEFAULT)));
+ chartFull = isAsciiNostalgia() ? '#' : '█';
+ chartEmpty = isAsciiNostalgia() ? '~' : '░';
+ // TODO: consider using partial blocks for more precision: https://en.wikipedia.org/wiki/Block_Elements
+ }
+
+ @Override
+ protected void postprocessPrefetchedResultSet(ColumnsHeader currentHeader, List