fix #1614 - split up fill and fill-opacity for pies

Author: alexcjohnson

src/traces/pie/style_one.js

@@ -17,9 +17,7 @@ module.exports = function styleOne(s, pt, trace) {
     var lineWidth = trace.marker.line.width || 0;
     if(Array.isArray(lineWidth)) lineWidth = lineWidth[pt.i] || 0;
 
-    s.style({
-        'stroke-width': lineWidth,
-        fill: pt.color
-    })
+    s.style({'stroke-width': lineWidth})
+    .call(Color.fill, pt.color)
     .call(Color.stroke, lineColor);
 };

test/jasmine/tests/pie_test.js

@@ -0,0 +1,66 @@
+var d3 = require('d3');
+
+var Plotly = require('@lib/index');
+
+var createGraphDiv = require('../assets/create_graph_div');
+var destroyGraphDiv = require('../assets/destroy_graph_div');
+var customMatchers = require('../assets/custom_matchers');
+var failTest = require('../assets/fail_test');
+
+describe('Pies', function() {
+    'use strict';
+
+    var gd;
+
+    beforeAll(function() {
+        jasmine.addMatchers(customMatchers);
+    });
+
+    beforeEach(function() { gd = createGraphDiv(); });
+
+    afterEach(destroyGraphDiv);
+
+    it('should separate colors and opacities', function(done) {
+        Plotly.newPlot(gd, [{
+            values: [1, 2, 3, 4, 5],
+            type: 'pie',
+            sort: false,
+            marker: {
+                line: {width: 3, color: 'rgba(100,100,100,0.7)'},
+                colors: [
+                    'rgba(0,0,0,0.2)',
+                    'rgba(255,0,0,0.3)',
+                    'rgba(0,255,0,0.4)',
+                    'rgba(0,0,255,0.5)',
+                    'rgba(255,255,0,0.6)'
+                ]
+            }
+        }], {height: 300, width: 400}).then(function() {
+            var colors = [
+                'rgb(0, 0, 0)',
+                'rgb(255, 0, 0)',
+                'rgb(0, 255, 0)',
+                'rgb(0, 0, 255)',
+                'rgb(255, 255, 0)'
+            ];
+            var opacities = [0.2, 0.3, 0.4, 0.5, 0.6];
+
+            function checkPath(d, i) {
+                var path = d3.select(this);
+                expect(path.style('fill')).toBe(colors[i]);
+                expect(path.style('fill-opacity')).toBe(String(opacities[i]));
+                expect(path.style('stroke')).toBe('rgb(100, 100, 100)');
+                expect(path.style('stroke-opacity')).toBe('0.7');
+            }
+            var slices = d3.selectAll('.slice path');
+            slices.each(checkPath);
+            expect(slices.size()).toBe(5);
+
+            var legendEntries = d3.selectAll('.legendpoints path');
+            legendEntries.each(checkPath);
+            expect(legendEntries.size()).toBe(5);
+        })
+        .catch(failTest)
+        .then(done);
+    });
+});