Add strikethrough label option

Author: jericks

doc/images/states_label_strikethrough.png

@@ -76,6 +76,25 @@ Store tiles in any JDBC database (like H2, Postgres, or SQLite) in the familiar
 
 .. image:: images/h2_1.png
 
+The Label Symbolizer now has a strikethrough property::
+
+    def statesShp = new Shapefile("states.shp")
+    statesShp.style = (new Fill("#E6E6E6") + new Stroke("#4C4C4C",0.5)) +
+            (new Shape("#66CCff", 6, "circle").stroke("#004080") + new Transform("centroid(the_geom)")).zindex(1) +
+            (new Label("STATE_NAME").strikethrough(true).font(new Font("normal", "bold", 10, "serif")).fill(new Fill("#004080")))
+
+    def map = new Map(
+        width: 600,
+        height: 400,
+        bounds: new Bounds(-114.675293,37.317752,-83.078613,49.210420,"EPSG:4326"),
+        fixAspectRatio: true
+    )
+    map.proj = "EPSG:4326"
+    map.addLayer(statesShp)
+    map.render(new File("states_label_strikethrough.png"))
+
+.. image:: images/states_label_strikethrough.png
+
 The Label Symbolizer now has wordSpacing and characterSpacing properties::
 
     def statesShp = new Shapefile("states.shp")

doc/releases.rst

@@ -0,0 +1,19 @@
+import geoscript.layer.Shapefile
+import geoscript.render.Map
+import geoscript.style.*
+import geoscript.geom.Bounds
+
+def statesShp = new Shapefile("states.shp")
+statesShp.style = (new Fill("#E6E6E6") + new Stroke("#4C4C4C",0.5)) +
+        (new Shape("#66CCff", 6, "circle").stroke("#004080") + new Transform("centroid(the_geom)")).zindex(1) +
+        (new Label("STATE_NAME").strikethrough(true).font(new Font("normal", "bold", 10, "serif")).fill(new Fill("#004080")))
+
+def map = new Map(
+    width: 600,
+    height: 400,
+    bounds: new Bounds(-114.675293,37.317752,-83.078613,49.210420,"EPSG:4326"),
+    fixAspectRatio: true
+)
+map.proj = "EPSG:4326"
+map.addLayer(statesShp)
+map.render(new File("states_label_strikethrough.png"))

examples/map_states_label_strikethrough.groovy

@@ -343,6 +343,16 @@ class Label extends Symbolizer {
         this
     }
 
+    /**
+     * Set whether the Label should strike through the text or not
+     * @param shouldStrikeThrough Whether the label text should be underlined
+     * @return This label
+     */
+    Label strikethrough(boolean shouldStrikeThrough) {
+        options.strikethroughText = String.valueOf(shouldStrikeThrough)
+        this
+    }
+
     /**
      * Set the spacing between words
      * @param spacing The spacing

src/main/groovy/geoscript/style/Label.groovy

@@ -111,6 +111,10 @@ class LabelTestCase {
         assertTrue label.underline(true) instanceof Label
         assertTrue label.options.underlineText as boolean
 
+        // strikethrough text
+        assertTrue label.strikethrough(true) instanceof Label
+        assertTrue label.options.strikethroughText as boolean
+
         // Word Spacing
         assertTrue label.wordSpacing(5) instanceof Label
         assertEquals 5, label.options.wordSpacing as int