Added GraduationHelper class

Minor API change to VectorBasedCallback class

CPS/src/lu/list/itis/dkd/tui/bootstrapping/VectorBasedCallback.java

@@ -38,7 +38,7 @@ import java.util.Map;
  */
 
 // ***************************************************************************
-// * Class Definition and Members *
+// * Class Definition and Members
 // ***************************************************************************
 
 public class VectorBasedCallback implements BootstrapCallback {
@@ -50,14 +50,14 @@ public class VectorBasedCallback implements BootstrapCallback {
     private Integer size;
 
     // ***************************************************************************
-    // * Constants *
+    // * Constants
     // ***************************************************************************
 
     private static final Logger LOGGER = LoggerFactory.getLogger(VectorBasedCallback.class.getName());
 
     // ---------------------------------------------------------------------------
     // ***************************************************************************
-    // * Constructor(s) *
+    // * Constructor(s)
     // ***************************************************************************
     // ---------------------------------------------------------------------------
 
@@ -79,7 +79,7 @@ public class VectorBasedCallback implements BootstrapCallback {
 
     // ---------------------------------------------------------------------------
     // ***************************************************************************
-    // * Class Body *
+    // * Class Body
     // ***************************************************************************
     // ---------------------------------------------------------------------------
 
@@ -87,10 +87,6 @@ public class VectorBasedCallback implements BootstrapCallback {
         List<BaseWidget> widgets = null;
         Map<String, Variable<?>> systemVariables = new HashMap<>();
 
-        /*
-         * index = 0; context.setProperty(Templating.HANDLE_ID_PROPERTY, widgetId);
-         * context.setProperty(Templating.SIZE_OF_VECTORS_PROPERTY, size);
-         */
         this.initialize(null, context);
 
         for (Variable<?> systemVariable : variables) {
@@ -102,7 +98,6 @@ public class VectorBasedCallback implements BootstrapCallback {
 
             for (BaseWidget widget : widgets) {
                 List<Variable<?>> connected;
-                // if (widget.getClass().isAssignableFrom(VariableBased.class)) {
                 if (widget instanceof VariableBased) {
                     VariableBased display = (VariableBased) widget;
                     connected = display.connectWithSystemVariables(systemVariables);
@@ -180,4 +175,16 @@ public class VectorBasedCallback implements BootstrapCallback {
         return reset(context);
     }
 
+    // ---------------------------------------------------------------------------
+
+    public int getSize() {
+        return this.size;
+    }
+
+    // ---------------------------------------------------------------------------
+    // ***************************************************************************
+    // * End of Class
+    // ***************************************************************************
+    // ---------------------------------------------------------------------------
+
 }

CPS/src/lu/list/itis/dkd/tui/utility/graduation/GraduationHelper.java

+/**
+ * Copyright Luxembourg Institute of Science and Technology, 2020. All rights reserved. If you wish
+ * to use this code for any purpose, please contact the author(s).
+ *
+ * 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 OWNER 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 lu.list.itis.dkd.tui.utility.graduation;
+
+/**
+ * @author nico.mack@list.lu
+ * @since 2.9
+ * @version 1.0.0
+ */
+// ***************************************************************************
+// * Class Definition and Members *
+// ***************************************************************************
+
+public class GraduationHelper {
+
+    // ***************************************************************************
+    // * Constants *
+    // ***************************************************************************
+
+    private static final int[] DIVISIONS = {3, 4, 5, 10};
+
+    // ---------------------------------------------------------------------------
+    // ***************************************************************************
+    // * Constructor(s) *
+    // ***************************************************************************
+    // ---------------------------------------------------------------------------
+
+    private GraduationHelper() {
+
+    }
+
+    // ---------------------------------------------------------------------------
+    // ***************************************************************************
+    // * Primitives *
+    // ***************************************************************************
+    // ---------------------------------------------------------------------------
+
+    private static int getPower(double value) {
+        int decimals = (int) Math.floor(Math.log10(value));
+        int powerOfTen = (int) Math.pow(10, decimals);
+        return powerOfTen;
+    }
+
+    // ---------------------------------------------------------------------------
+    // ***************************************************************************
+    // * Class Body *
+    // ***************************************************************************
+    // ---------------------------------------------------------------------------
+
+    public static int getGraduationLevels(double value) {
+        int powerOfTen = getPower(value) / 10;
+        double normalized = value / powerOfTen;
+        int numberOfLevels = -1;
+
+        for (int range = 0; range < DIVISIONS.length; range++) {
+            if (normalized % DIVISIONS[range] == 0) {
+                numberOfLevels = DIVISIONS[range];
+                break;
+            }
+        }
+
+        return numberOfLevels;
+    }
+
+    // ---------------------------------------------------------------------------
+    // ***************************************************************************
+    // * End of Class *
+    // ***************************************************************************
+    // ---------------------------------------------------------------------------
+
+}