XSSF color scale CF objects

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1691859 13f79535-47bb-0310-9956-ffa450edef68

src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFColorScaleFormatting.java

@@ -0,0 +1,94 @@
+/*
+ *  ====================================================================
+ *    Licensed to the Apache Software Foundation (ASF) under one or more
+ *    contributor license agreements.  See the NOTICE file distributed with
+ *    this work for additional information regarding copyright ownership.
+ *    The ASF licenses this file to You 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 org.apache.poi.xssf.usermodel;
+
+import org.apache.poi.ss.usermodel.Color;
+import org.apache.poi.ss.usermodel.ColorScaleFormatting;
+import org.apache.poi.ss.usermodel.ConditionalFormattingThreshold;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTCfvo;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTColor;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTColorScale;
+
+/**
+ * High level representation for Color Scale / Color Gradient Formatting 
+ *  component of Conditional Formatting settings
+ */
+public class XSSFColorScaleFormatting implements ColorScaleFormatting {
+    CTColorScale _scale;
+
+    /*package*/ XSSFColorScaleFormatting(CTColorScale scale){
+        _scale = scale;
+    }
+    
+    public int getNumControlPoints() {
+        return _scale.sizeOfCfvoArray();
+    }
+    public void setNumControlPoints(int num) {
+        while (num < _scale.sizeOfCfvoArray()) {
+            _scale.removeCfvo(_scale.sizeOfCfvoArray()-1);
+            _scale.removeColor(_scale.sizeOfColorArray()-1);
+        }
+        while (num > _scale.sizeOfCfvoArray()) {
+            _scale.addNewCfvo();
+            _scale.addNewColor();
+        }
+    }
+
+    @SuppressWarnings("deprecation")
+    public XSSFColor[] getColors() {
+        CTColor[] ctcols = _scale.getColorArray();
+        XSSFColor[] c = new XSSFColor[ctcols.length];
+        for (int i=0; i<ctcols.length; i++) {
+            c[i] = new XSSFColor(ctcols[i]);
+        }
+        return c;
+    }
+    public void setColors(Color[] colors) {
+        CTColor[] ctcols = new CTColor[colors.length];
+        for (int i=0; i<colors.length; i++) {
+            ctcols[i] = ((XSSFColor)colors[i]).getCTColor();
+        }
+        _scale.setColorArray(ctcols);
+    }
+
+    @SuppressWarnings("deprecation")
+    public XSSFConditionalFormattingThreshold[] getThresholds() {
+        CTCfvo[] cfvos = _scale.getCfvoArray();
+        XSSFConditionalFormattingThreshold[] t = 
+                new XSSFConditionalFormattingThreshold[cfvos.length];
+        for (int i=0; i<cfvos.length; i++) {
+            t[i] = new XSSFConditionalFormattingThreshold(cfvos[i]);
+        }
+        return t;
+    }
+    public void setThresholds(ConditionalFormattingThreshold[] thresholds) {
+        CTCfvo[] cfvos = new CTCfvo[thresholds.length];
+        for (int i=0; i<thresholds.length; i++) {
+            cfvos[i] = ((XSSFConditionalFormattingThreshold)thresholds[i]).getCTCfvo();
+        }
+        _scale.setCfvoArray(cfvos);
+    }
+    
+    public XSSFColor createColor() {
+        return new XSSFColor(_scale.addNewColor());
+    }
+    public XSSFConditionalFormattingThreshold createThreshold() {
+        return new XSSFConditionalFormattingThreshold(_scale.addNewCfvo());
+    }
+}

src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFConditionalFormattingRule.java

@@ -217,6 +217,19 @@ public class XSSFConditionalFormattingRule implements ConditionalFormattingRule
         }
     }
     
+    public XSSFColorScaleFormatting createColorScaleFormatting() {
+        // TODO Implement
+        return null;
+    }
+    public XSSFColorScaleFormatting getColorScaleFormatting() {
+        if (_cfRule.isSetColorScale()) {
+            CTColorScale scale = _cfRule.getColorScale();
+            return new XSSFColorScaleFormatting(scale);
+        } else {
+            return null;
+        }
+    }
+
     /**
      * Type of conditional formatting rule.
      * <p>