1 files changed, 86 insertions, 0 deletions
diff --git a/src/main/java/com/jsyn/swing/DoubleBoundedRangeModel.java b/src/main/java/com/jsyn/swing/DoubleBoundedRangeModel.java
new file mode 100644
index 0000000..647e8da
--- /dev/null
+++ b/src/main/java/com/jsyn/swing/DoubleBoundedRangeModel.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2002 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 javax.swing.DefaultBoundedRangeModel;
+
+/**
+ * Double precision data model for sliders and knobs. Maps integer range info to a double value.
+ * 
+ * @author Phil Burk, (C) 2002 SoftSynth.com, PROPRIETARY and CONFIDENTIAL
+ */
+public class DoubleBoundedRangeModel extends DefaultBoundedRangeModel {
+    private static final long serialVersionUID = 284361767102120148L;
+    protected String name;
+    private double dmin;
+    private double dmax;
+
+    public DoubleBoundedRangeModel(String name, int resolution, double dmin, double dmax,
+            double dval) {
+        this.name = name;
+        this.dmin = dmin;
+        this.dmax = dmax;
+        setMinimum(0);
+        setMaximum(resolution);
+        setDoubleValue(dval);
+    }
+
+    public boolean equivalentTo(Object other) {
+        if (!(other instanceof DoubleBoundedRangeModel))
+            return false;
+        DoubleBoundedRangeModel otherModel = (DoubleBoundedRangeModel) other;
+        return (getValue() == otherModel.getValue());
+    }
+
+    /** Set name of value. This may be used in labels or when saving the value. */
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public double getDoubleMinimum() {
+        return dmin;
+    }
+
+    public double getDoubleMaximum() {
+        return dmax;
+    }
+
+    public double sliderToDouble(int sliderValue) {
+        double doubleMin = getDoubleMinimum();
+        return doubleMin + ((getDoubleMaximum() - doubleMin) * sliderValue / getMaximum());
+    }
+
+    public int doubleToSlider(double dval) {
+        double doubleMin = getDoubleMinimum();
+        // TODO consider using Math.floor() instead of (int) if not too slow.
+        return (int) Math.round(getMaximum() * (dval - doubleMin)
+                / (getDoubleMaximum() - doubleMin));
+    }
+
+    public double getDoubleValue() {
+        return sliderToDouble(getValue());
+    }
+
+    public void setDoubleValue(double dval) {
+        setValue(doubleToSlider(dval));
+    }
+
+}