Enable area color in map (pyecharts#1253)

* ✨ enable area color in map. resolve pyecharts#1248

* 💄 update version number

pyecharts/_version.py

@@ -1,2 +1,2 @@
-__version__ = "1.3.0"
+__version__ = "1.3.1"
 __author__ = "chenjiandongx"

pyecharts/options/series_options.py

@@ -25,6 +25,7 @@ def __init__(
         border_color0: Optional[str] = None,
         border_width: Optional[Numeric] = None,
         opacity: Optional[Numeric] = None,
+        area_color: Optional[str] = None,
     ):
         self.opts: dict = {
             "color": color,
@@ -33,6 +34,7 @@ def __init__(
             "borderColor0": border_color0,
             "borderWidth": border_width,
             "opacity": opacity,
+            "areaColor": area_color
         }
 
 

test/test_item_style_options.py

@@ -0,0 +1,7 @@
+from pyecharts import options as opts
+from nose.tools import eq_
+
+
+def test_area_color_in_item_styles():
+    op = opts.ItemStyleOpts(area_color='red')
+    eq_(op.opts['areaColor'], 'red')

test/test_map.py

@@ -25,11 +25,12 @@ def test_map_emphasis():
         [list(z) for z in zip(Faker.provinces, Faker.values())],
         "china",
         emphasis_label_opts=opts.LabelOpts(is_show=False),
-        emphasis_itemstyle_opts=opts.ItemStyleOpts(border_color="white"),
+        emphasis_itemstyle_opts=opts.ItemStyleOpts(border_color="white",
+                                                   area_color="red"),
     )
     options = json.loads(c.dump_options())
     expected = {
         "label": {"show": False, "position": "top", "margin": 8},
-        "itemStyle": {"borderColor": "white"},
+        "itemStyle": {"borderColor": "white", "areaColor": "red"},
     }
     eq_(expected, options["series"][0]["emphasis"])