1 files changed, 96 insertions, 0 deletions
diff --git a/src/com/jsyn/swing/DoubleBoundedTextField.java b/src/com/jsyn/swing/DoubleBoundedTextField.java
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+++ b/src/com/jsyn/swing/DoubleBoundedTextField.java
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+/*
+ * Copyright 2000 Phil Burk, Mobileer Inc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.jsyn.swing;
+
+import java.awt.Color;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
+
+import javax.swing.JTextField;
+import javax.swing.SwingConstants;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+
+import com.softsynth.util.NumericOutput;
+
+/**
+ * TextField that turns pink when modified, and white when the value is entered.
+ * 
+ * @author (C) 2000-2010 Phil Burk, Mobileer Inc
+ * @version 16
+ */
+
+public class DoubleBoundedTextField extends JTextField {
+    private static final long serialVersionUID = 6882779668177620812L;
+    boolean modified = false;
+    int numCharacters;
+    private DoubleBoundedRangeModel model;
+
+    public DoubleBoundedTextField(DoubleBoundedRangeModel pModel, int numCharacters) {
+        super(numCharacters);
+        this.model = pModel;
+        this.numCharacters = numCharacters;
+        setHorizontalAlignment(SwingConstants.LEADING);
+        setValue(model.getDoubleValue());
+        addKeyListener(new KeyAdapter() {
+            @Override
+            public void keyTyped(KeyEvent e) {
+                if (e.getKeyChar() == '\n') {
+                    model.setDoubleValue(getValue());
+                } else {
+                    markDirty();
+                }
+            }
+        });
+        model.addChangeListener(new ChangeListener() {
+            @Override
+            public void stateChanged(ChangeEvent e) {
+                setValue(model.getDoubleValue());
+            }
+        });
+    }
+
+    private void markDirty() {
+        modified = true;
+        setBackground(Color.pink);
+        repaint();
+    }
+
+    private void markClean() {
+        modified = false;
+        setBackground(Color.white);
+        setCaretPosition(0);
+        repaint();
+    }
+
+    @Override
+    public void setText(String text) {
+        markDirty();
+        super.setText(text);
+    }
+
+    private double getValue() throws NumberFormatException {
+        double val = Double.valueOf(getText()).doubleValue();
+        markClean();
+        return val;
+    }
+
+    private void setValue(double value) {
+        super.setText(NumericOutput.doubleToString(value, 1, 4));
+        markClean();
+    }
+}