From 11e8324f332f5648ba0f13b902621dc7a20137e4 Mon Sep 17 00:00:00 2001
From: gmungoc <g.m.carstairs@dundee.ac.uk>
Date: Thu, 31 May 2018 11:43:40 +0100
Subject: [PATCH] JAL-2808 pre-fill numeric inequality filter with min/max
 range value

---
 src/jalview/gui/FeatureTypeSettings.java |   44 ++++++++++++++++++++++++------
 1 file changed, 35 insertions(+), 9 deletions(-)

diff --git a/src/jalview/gui/FeatureTypeSettings.java b/src/jalview/gui/FeatureTypeSettings.java
index 6eb583c..89c693f 100644
--- a/src/jalview/gui/FeatureTypeSettings.java
+++ b/src/jalview/gui/FeatureTypeSettings.java
@@ -1414,7 +1414,7 @@ public class FeatureTypeSettings extends JalviewDialog
      * if a numeric condition is selected, show the value range
      * as a tooltip on the value input field
      */
-    setPatternTooltip(filterBy, selectedCondition, patternField);
+    setNumericHints(filterBy, selectedCondition, patternField);
 
     /*
      * add remove button if filter is populated (non-empty pattern)
@@ -1469,14 +1469,19 @@ public class FeatureTypeSettings extends JalviewDialog
   }
 
   /**
-   * If a numeric comparison condition is selected, retrieve the min-max range for
-   * the value (score or attribute), and set it as a tooltip on the value file
+   * If a numeric comparison condition is selected, retrieves the min-max range
+   * for the value (score or attribute), and sets it as a tooltip on the value
+   * field. If the field is currently empty, then pre-populates it with
+   * <ul>
+   * <li>the minimum value, if condition is > or >=</li>
+   * <li>the maximum value, if condition is < or <=</li>
+   * </ul>
    * 
    * @param attName
    * @param selectedCondition
    * @param patternField
    */
-  private void setPatternTooltip(String attName,
+  private void setNumericHints(String attName,
           Condition selectedCondition, JTextField patternField)
   {
     patternField.setToolTipText("");
@@ -1486,9 +1491,26 @@ public class FeatureTypeSettings extends JalviewDialog
       float[] minMax = getMinMax(attName);
       if (minMax != null)
       {
-        String tip = String.format("(%s - %s)",
-                DECFMT_2_2.format(minMax[0]), DECFMT_2_2.format(minMax[1]));
+        String minFormatted = DECFMT_2_2.format(minMax[0]);
+        String maxFormatted = DECFMT_2_2.format(minMax[1]);
+        String tip = String.format("(%s - %s)", minFormatted, maxFormatted);
         patternField.setToolTipText(tip);
+        if (patternField.getText().isEmpty())
+        {
+          if (selectedCondition == Condition.GE
+                  || selectedCondition == Condition.GT)
+          {
+            patternField.setText(minFormatted);
+          }
+          else
+          {
+            if (selectedCondition == Condition.LE
+                    || selectedCondition == Condition.LT)
+            {
+              patternField.setText(maxFormatted);
+            }
+          }
+        }
       }
     }
   }
@@ -1525,6 +1547,7 @@ public class FeatureTypeSettings extends JalviewDialog
     ItemListener listener = condCombo.getItemListeners()[0];
     condCombo.removeItemListener(listener);
     boolean condIsValid = false;
+
     condCombo.removeAllItems();
     for (Condition c : Condition.values())
     {
@@ -1551,8 +1574,6 @@ public class FeatureTypeSettings extends JalviewDialog
       condCombo.setSelectedIndex(0);
     }
 
-    condCombo.addItemListener(listener);
-
     /*
      * clear pattern if it is now invalid for condition
      */
@@ -1570,6 +1591,11 @@ public class FeatureTypeSettings extends JalviewDialog
         patternField.setText("");
       }
     }
+
+    /*
+     * restore the listener
+     */
+    condCombo.addItemListener(listener);
   }
 
   /**
@@ -1646,7 +1672,7 @@ public class FeatureTypeSettings extends JalviewDialog
     Condition cond = (Condition) condCombo.getSelectedItem();
     String pattern = valueField.getText().trim();
 
-    setPatternTooltip(attName, cond, valueField);
+    setNumericHints(attName, cond, valueField);
 
     if (pattern.length() == 0 && cond.needsAPattern())
     {
-- 
1.7.10.2