Option to toggle ssiv debug

app/src/debug/kotlin/org/koitharu/kotatsu/settings/SettingsMenuProvider.kt

@@ -5,6 +5,7 @@ import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
 import androidx.core.view.MenuProvider
+import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
 import leakcanary.LeakCanary
 import org.koitharu.kotatsu.KotatsuApp
 import org.koitharu.kotatsu.R
@@ -24,6 +25,7 @@ class SettingsMenuProvider(
 	override fun onPrepareMenu(menu: Menu) {
 		super.onPrepareMenu(menu)
 		menu.findItem(R.id.action_leakcanary).isChecked = application.isLeakCanaryEnabled
+		menu.findItem(R.id.action_ssiv_debug).isChecked = SubsamplingScaleImageView.isDebug
 	}
 
 	override fun onMenuItemSelected(menuItem: MenuItem): Boolean = when (menuItem.itemId) {
@@ -44,6 +46,13 @@ class SettingsMenuProvider(
 			true
 		}
 
+		R.id.action_ssiv_debug -> {
+			val checked = !menuItem.isChecked
+			menuItem.isChecked = checked
+			SubsamplingScaleImageView.isDebug = checked
+			true
+		}
+
 		else -> false
 	}
 }

app/src/debug/res/menu/opt_settings.xml

@@ -4,6 +4,12 @@
 	xmlns:app="http://schemas.android.com/apk/res-auto"
 	xmlns:tools="http://schemas.android.com/tools">
 
+	<item
+		android:id="@+id/action_ssiv_debug"
+		android:checkable="true"
+		android:title="SSIV debug"
+		app:showAsAction="never"
+		tools:ignore="HardcodedText" />
 	<item
 		android:id="@+id/action_leakcanary"
 		android:checkable="true"