#104: implements a button to reset log entries in auto scroll mode

app/src/main/scala/app/logorrr/views/LogFileTab.scala

@@ -107,7 +107,7 @@ class LogFileTab(val pathAsString: String
   val filteredList = new FilteredList[LogEntry](logEntries)
 
   private val opsToolBar = {
-    val op = new OpsToolBar(pathAsString, addFilter)
+    val op = new OpsToolBar(pathAsString, addFilter, logEntries)
     op.blockSizeProperty.set(LogoRRRGlobals.getLogFileSettings(pathAsString).blockWidthSettingsProperty.get())
     op
   }

app/src/main/scala/app/logorrr/views/autoscroll/AutoScrollCheckBox.scala

@@ -1,13 +1,34 @@
 package app.logorrr.views.autoscroll
 
 import app.logorrr.conf.LogoRRRGlobals
-import app.logorrr.model.LogIdAware
-import javafx.scene.control.{CheckBox, Tooltip}
+import app.logorrr.model.{LogEntry, LogIdAware}
+import app.logorrr.util.JfxUtils
+import javafx.collections.ObservableList
+import javafx.scene.control.{CheckBox, ContextMenu, MenuItem, Tooltip}
+import org.kordamp.ikonli.fontawesome5.FontAwesomeSolid
+import org.kordamp.ikonli.javafx.FontIcon
 
+class ClearLogMenuItem(logEntries: ObservableList[LogEntry]) extends MenuItem("clear log") {
+  setOnAction(_ => {
+    logEntries.clear()
+  })
+  setGraphic(new FontIcon(FontAwesomeSolid.TRASH))
+}
 
-class AutoScrollCheckBox(val pathAsString: String) extends CheckBox with LogIdAware {
+class AutoScrollCheckBox(val pathAsString: String
+                         , logEntries: ObservableList[LogEntry]) extends CheckBox with LogIdAware {
   setTooltip(new Tooltip("autoscroll"))
-
+  val cm = new ContextMenu(new ClearLogMenuItem(logEntries))
   selectedProperty().bindBidirectional(LogoRRRGlobals.getLogFileSettings(pathAsString).autoScrollProperty)
 
+  selectedProperty().addListener(JfxUtils.onNew[java.lang.Boolean]({
+    selected =>
+      if (selected) {
+        if (Option(getContextMenu).isEmpty) {
+          setContextMenu(cm)
+        }
+      } else {
+        setContextMenu(null)
+      }
+  }))
 }

app/src/main/scala/app/logorrr/views/search/OpsToolBar.scala

@@ -1,11 +1,13 @@
 package app.logorrr.views.search
 
+import app.logorrr.model.LogEntry
 import app.logorrr.util.OsUtil
 import app.logorrr.views.autoscroll.AutoScrollCheckBox
 import app.logorrr.views.block.HasBlockSizeProperty
 import app.logorrr.views.ops.{DecreaseBlockSizeButton, IncreaseBlockSizeButton}
 import app.logorrr.views.text.{DecreaseTextSizeButton, IncreaseTextSizeButton}
 import javafx.beans.property.SimpleIntegerProperty
+import javafx.collections.ObservableList
 import javafx.scene.control._
 import javafx.scene.input.{KeyCode, KeyEvent}
 
@@ -33,7 +35,9 @@ object OpsToolBar {
  *
  * @param addFilterFn filter function which results from user interaction with SearchToolbar
  */
-class OpsToolBar(pathAsString: String, addFilterFn: Filter => Unit)
+class OpsToolBar(pathAsString: String
+                 , addFilterFn: Filter => Unit
+                 , logEntries: ObservableList[LogEntry])
   extends ToolBar
     with HasBlockSizeProperty {
 
@@ -57,7 +61,7 @@ class OpsToolBar(pathAsString: String, addFilterFn: Filter => Unit)
 
   private val searchButton = new SearchButton(searchTextField, regexToggleButton, colorPicker, addFilterFn)
 
-  val autoScrollCheckBox = new AutoScrollCheckBox(pathAsString)
+  val autoScrollCheckBox = new AutoScrollCheckBox(pathAsString, logEntries)
 
   def execSearchOnHitEnter(event: KeyEvent): Unit = {
     if (event.getCode == KeyCode.ENTER) {