Allow users to toggle paintstyle automatically based off of layer

Signed-off-by: Taylor Smock <taylor.smock@kaart.com>

src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/MapWithAIDataUtils.java

@@ -24,6 +24,7 @@ import org.openstreetmap.josm.data.osm.Way;
 import org.openstreetmap.josm.gui.MainApplication;
 import org.openstreetmap.josm.gui.layer.OsmDataLayer;
 import org.openstreetmap.josm.gui.mappaint.MapPaintStyles;
+import org.openstreetmap.josm.gui.mappaint.StyleSource;
 import org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSStyleSource;
 import org.openstreetmap.josm.gui.progress.swing.PleaseWaitProgressMonitor;
 import org.openstreetmap.josm.plugins.mapwithai.MapWithAIPlugin;
@@ -82,6 +83,14 @@ public final class MapWithAIDataUtils {
         .forEach(MapPaintStyles::removeStyle);
     }
 
+    /**
+     * @return get the MapWithAI Paint style
+     */
+    public static StyleSource getMapWithAIPaintStyle() {
+        return MapPaintStyles.getStyles().getStyleSources().parallelStream()
+                .filter(source -> PAINT_STYLE_RESOURCE_URL.equals(source.url)).findAny().orElse(null);
+    }
+
     /**
      * Add primitives and their children to a collection
      *

src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/MapWithAILayer.java

@@ -18,14 +18,21 @@ import javax.swing.SwingConstants;
 import org.openstreetmap.josm.data.osm.DataSet;
 import org.openstreetmap.josm.data.osm.DownloadPolicy;
 import org.openstreetmap.josm.data.osm.UploadPolicy;
+import org.openstreetmap.josm.gui.MainApplication;
+import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeEvent;
+import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeListener;
 import org.openstreetmap.josm.gui.layer.OsmDataLayer;
+import org.openstreetmap.josm.gui.mappaint.MapPaintStyles;
+import org.openstreetmap.josm.gui.mappaint.StyleSource;
+import org.openstreetmap.josm.plugins.mapwithai.MapWithAIPlugin;
+import org.openstreetmap.josm.spi.preferences.Config;
 import org.openstreetmap.josm.tools.GBC;
 
 /**
  * @author Taylor Smock
  *
  */
-public class MapWithAILayer extends OsmDataLayer {
+public class MapWithAILayer extends OsmDataLayer implements ActiveLayerChangeListener {
     private Integer maximumAddition = null;
     private String url = null;
     private Boolean switchLayers = null;
@@ -43,6 +50,7 @@ public class MapWithAILayer extends OsmDataLayer {
         data.setUploadPolicy(UploadPolicy.BLOCKED);
         data.setDownloadPolicy(DownloadPolicy.BLOCKED);
         lock = new MapLock();
+        MainApplication.getLayerManager().addActiveLayerChangeListener(this);
     }
 
     // @Override TODO remove comment on 2020-01-01
@@ -132,4 +140,31 @@ public class MapWithAILayer extends OsmDataLayer {
             }
         }
     }
+
+    @Override
+    public void activeOrEditLayerChanged(ActiveLayerChangeEvent e) {
+        if (checkIfToggleLayer()) {
+            StyleSource style = MapWithAIDataUtils.getMapWithAIPaintStyle();
+            if (style.active != this.equals(MainApplication.getLayerManager().getActiveLayer())) {
+                MapPaintStyles.toggleStyleActive(MapPaintStyles.getStyles().getStyleSources().indexOf(style));
+            }
+        }
+    }
+
+    private boolean checkIfToggleLayer() {
+        List<String> keys = Config.getPref().getKeySet().parallelStream()
+                .filter(string -> string.contains(MapWithAIPlugin.NAME) && string.contains("boolean:toggle_with_layer"))
+                .collect(Collectors.toList());
+        boolean toggle = false;
+        if (keys.size() == 1) {
+            toggle = Config.getPref().getBoolean(keys.get(0), false);
+        }
+        return toggle;
+    }
+
+    @Override
+    public synchronized void destroy() {
+        super.destroy();
+        MainApplication.getLayerManager().removeActiveLayerChangeListener(this);
+    }
 }

src/resources/styles/standard/mapwithai.mapcss

@@ -7,16 +7,47 @@ meta
     min-josm-version: "15229";
 }
 
-/*******************************************
+/***************************************************
  * Set .mapwithai for all known MapWithAI datasets *
- *******************************************/
-way[source=~/^(?i)(microsoft|digitalglobe)$/] {
+ ***************************************************/
+settings::show_all {
+    label: tr("Show possible MapWithAI objects");
+}
+setting::show_new {
+    type: boolean;
+    label: tr("New");
+    default: true;
+    group: "show_all";
+}
+setting::show_modified {
+    type: boolean;
+    label: tr("Modified");
+    default: false;
+    group: "show_all";
+}
+setting::show_old {
+    type: boolean;
+    label: tr("Pre-existing");
+    default: false;
+    group: "show_all";
+}
+/* This requires support in the plugin (will read key for mapwithai.mapcss:boolean:toggle_with_layer) */
+setting::toggle_with_layer {
+    type: boolean;
+    label: tr("Toggle paintstyle on/off with layer");
+    default: false;
+}
+
+way[source=~/^(?i)(microsoft|digitalglobe)$/][setting("show_old")]!:new!:modified,
+way[source=~/^(?i)(microsoft|digitalglobe)$/][setting("show_new")]:new,
+way[source=~/^(?i)(microsoft|digitalglobe)$/][setting("show_modified")]:modified {
     set .mapwithai;
 }
 
 way.mapwithai {
     color: mapwithai#FF00FF;
 }
+
 way.mapwithai:closed2 {
     fill-color: mapwithai#FF00FF;
 }