Introduced NummericCellRenderer

src/main/java/gui/tools/NummericCellRenderer.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2017, 7u83 <7u83@mail.ru>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ *   list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+package gui.tools;
+
+import java.awt.Component;
+import java.text.DecimalFormat;
+import javax.swing.JTable;
+import static javax.swing.SwingConstants.RIGHT;
+import javax.swing.table.DefaultTableCellRenderer;
+
+/**
+ *
+ * @author 7u83 <7u83@mail.ru>
+ */
+public class NummericCellRenderer extends DefaultTableCellRenderer {
+
+    private final DecimalFormat formatter;
+
+    public NummericCellRenderer(int decimals) {
+        super();
+        String s = "#0.";
+        if (decimals == 0) {
+            s = "#";
+        } else {
+            for (int i = 0; i < decimals; i++) {
+                s = s + "0";
+            }
+        }
+        formatter = new DecimalFormat(s);
+        this.setHorizontalAlignment(RIGHT);
+    }
+
+    @Override
+    public Component getTableCellRendererComponent(
+            JTable table, Object value, boolean isSelected,
+            boolean hasFocus, int row, int column) {
+
+        // First format the cell value as required
+        value = formatter.format((Number) value);
+
+        // And pass it on to parent class
+        return super.getTableCellRendererComponent(
+                table, value, isSelected, hasFocus, row, column);
+    }
+}