Android: Show input indicators in controller settings

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/input/ui/AdvancedMappingControlViewHolder.kt

@@ -2,13 +2,15 @@
 
 package org.dolphinemu.dolphinemu.features.input.ui
 
+import android.view.View
 import androidx.lifecycle.Lifecycle
 import org.dolphinemu.dolphinemu.databinding.ListItemAdvancedMappingControlBinding
 import org.dolphinemu.dolphinemu.features.input.model.ControllerInterface
 import org.dolphinemu.dolphinemu.features.input.model.CoreDevice
 import org.dolphinemu.dolphinemu.utils.LifecycleViewHolder
-import org.dolphinemu.dolphinemu.utils.Log
+import java.text.DecimalFormat
 import java.util.function.Consumer
+import kotlin.math.abs
 
 class AdvancedMappingControlViewHolder(
     private val binding: ListItemAdvancedMappingControlBinding,
@@ -19,12 +21,16 @@ class AdvancedMappingControlViewHolder(
 
     private lateinit var control: CoreDevice.Control
 
+    private var previousState = Float.POSITIVE_INFINITY
+
     init {
         binding.root.setOnClickListener { onClickCallback.accept(control.getName()) }
         if (isInput) {
             ControllerInterface.inputStateChanged.observe(this) {
                 updateInputValue()
             }
+        } else {
+            binding.layoutState.visibility = View.GONE
         }
     }
 
@@ -41,8 +47,23 @@ class AdvancedMappingControlViewHolder(
             throw IllegalStateException("AdvancedMappingControlViewHolder leak")
         }
 
-        // TODO
-        Log.info("AdvancedMappingControlViewHolder: Value of " + control.getName() + " is " +
-                control.getState())
+        var state = control.getState().toFloat()
+        if (abs(state - previousState) >= stateUpdateThreshold) {
+            previousState = state
+
+            // Don't print a minus sign for signed zeroes
+            if (state == -0.0f)
+                state = 0.0f
+
+            binding.textState.setText(stateFormat.format(state))
+            binding.controlStateBar.state = state
+        }
+    }
+
+    companion object {
+        private val stateFormat = DecimalFormat("#.####")
+
+        // For performance, require state to change by a certain threshold before we update the UI
+        private val stateUpdateThreshold = 0.00005f
     }
 }

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/input/ui/ControlStateBarHorizontal.kt

@@ -0,0 +1,25 @@
+package org.dolphinemu.dolphinemu.features.input.ui
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.LayoutInflater
+import android.widget.LinearLayout
+import org.dolphinemu.dolphinemu.databinding.ViewControlStateBarHorizontalBinding
+
+class ControlStateBarHorizontal @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null,
+    defStyleAttr: Int = 0
+) : LinearLayout(context, attrs, defStyleAttr) {
+
+    private val binding =
+        ViewControlStateBarHorizontalBinding.inflate(LayoutInflater.from(context), this)
+
+    private val impl = ControlStateBarImpl(binding.viewFilled, binding.viewUnfilled)
+
+    var state: Float
+        get() = impl.state
+        set(value) {
+            impl.state = value
+        }
+}

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/input/ui/ControlStateBarImpl.kt

@@ -0,0 +1,28 @@
+package org.dolphinemu.dolphinemu.features.input.ui
+
+import android.view.View
+import android.widget.LinearLayout
+import androidx.core.math.MathUtils
+
+class ControlStateBarImpl(private val filledView: View, private val unfilledView: View) {
+    private var _state = 0.0f
+
+    var state: Float
+        get() = _state
+        set(value) {
+            val clampedState = MathUtils.clamp(value, 0.0f, 1.0f)
+            if (clampedState != _state) {
+                setLinearLayoutWeight(filledView, clampedState)
+                setLinearLayoutWeight(unfilledView, 1.0f - clampedState)
+            }
+            _state = clampedState
+        }
+
+    companion object {
+        private fun setLinearLayoutWeight(view: View, weight: Float) {
+            val layoutParams = view.layoutParams as LinearLayout.LayoutParams
+            layoutParams.weight = weight
+            view.layoutParams = layoutParams
+        }
+    }
+}

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/input/ui/ControlStateBarVertical.kt

@@ -0,0 +1,30 @@
+package org.dolphinemu.dolphinemu.features.input.ui
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.LayoutInflater
+import android.widget.LinearLayout
+import org.dolphinemu.dolphinemu.databinding.ViewControlStateBarVerticalBinding
+
+class ControlStateBarVertical @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null,
+    defStyleAttr: Int = 0
+) : LinearLayout(context, attrs, defStyleAttr) {
+
+    init {
+        // Setting this in the XML file has no effect for some reason
+        orientation = VERTICAL
+    }
+
+    private val binding =
+        ViewControlStateBarVerticalBinding.inflate(LayoutInflater.from(context), this)
+
+    private val impl = ControlStateBarImpl(binding.viewFilled, binding.viewUnfilled)
+
+    var state: Float
+        get() = impl.state
+        set(value) {
+            impl.state = value
+        }
+}

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/input/ui/viewholder/InputMappingControlSettingViewHolder.kt

@@ -10,14 +10,17 @@ import org.dolphinemu.dolphinemu.features.input.model.view.InputMappingControlSe
 import org.dolphinemu.dolphinemu.features.settings.model.view.SettingsItem
 import org.dolphinemu.dolphinemu.features.settings.ui.SettingsAdapter
 import org.dolphinemu.dolphinemu.features.settings.ui.viewholder.SettingViewHolder
-import org.dolphinemu.dolphinemu.utils.Log
+import kotlin.math.abs
 
 class InputMappingControlSettingViewHolder(
     private val binding: ListItemMappingBinding,
     adapter: SettingsAdapter
 ) : SettingViewHolder(binding.getRoot(), adapter) {
+
     lateinit var setting: InputMappingControlSetting
 
+    private var previousState = Float.POSITIVE_INFINITY
+
     init {
         ControllerInterface.inputStateChanged.observe(this) {
             updateInputValue()
@@ -34,6 +37,10 @@ class InputMappingControlSettingViewHolder(
         binding.textSettingDescription.text = setting.value
         binding.buttonAdvancedSettings.setOnClickListener { clicked: View -> onLongClick(clicked) }
 
+        if (!setting.isInput) {
+            binding.controlStateBar.visibility = View.INVISIBLE
+        }
+
         setStyle(binding.textSettingName, setting)
         updateInputValue()
     }
@@ -69,9 +76,16 @@ class InputMappingControlSettingViewHolder(
         }
 
         if (setting.isInput) {
-            // TODO
-            Log.info("InputMappingControlSettingViewHolder: Value of " + setting.name + " is " +
-                    setting.state)
+            val state = setting.state.toFloat()
+            if (abs(state - previousState) >= stateUpdateThreshold) {
+                previousState = state
+                binding.controlStateBar.state = state
+            }
         }
     }
+
+    companion object {
+        // For performance, require state to change by a certain threshold before we update the UI
+        private val stateUpdateThreshold = 0.01f
+    }
 }

Source/Android/app/src/main/res/layout-ldrtl/list_item_mapping.xml

@@ -22,7 +22,7 @@
         android:layout_marginTop="@dimen/spacing_large"
         android:textSize="16sp"
         android:textAlignment="viewStart"
-        android:layout_toStartOf="@+id/button_advanced_settings"
+        android:layout_toStartOf="@id/control_state_bar"
         tools:text="Setting Name" />
 
     <TextView
@@ -30,16 +30,23 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_alignParentStart="true"
-        android:layout_alignStart="@+id/text_setting_name"
-        android:layout_below="@+id/text_setting_name"
+        android:layout_alignStart="@id/text_setting_name"
+        android:layout_below="@id/text_setting_name"
         android:layout_marginBottom="@dimen/spacing_large"
         android:layout_marginEnd="@dimen/spacing_large"
         android:layout_marginStart="@dimen/spacing_large"
         android:layout_marginTop="@dimen/spacing_small"
-        android:layout_toStartOf="@+id/button_advanced_settings"
+        android:layout_toStartOf="@id/control_state_bar"
         android:textAlignment="viewStart"
         tools:text="@string/overclock_enable_description" />
 
+    <org.dolphinemu.dolphinemu.features.input.ui.ControlStateBarVertical
+        android:id="@+id/control_state_bar"
+        android:layout_width="4dp"
+        android:layout_height="16dp"
+        android:layout_centerVertical="true"
+        android:layout_toStartOf="@id/button_advanced_settings" />
+
     <Button
         android:id="@+id/button_advanced_settings"
         style="?attr/materialIconButtonStyle"

Source/Android/app/src/main/res/layout/list_item_advanced_mapping_control.xml

@@ -1,27 +1,48 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
+<LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:orientation="horizontal"
     android:minHeight="54dp"
     android:background="?android:attr/selectableItemBackground"
     android:focusable="true"
     android:clickable="true">
 
     <TextView
-        android:layout_width="match_parent"
+        android:layout_width="0dp"
         android:layout_height="wrap_content"
+        android:layout_weight="2"
         style="@style/TextAppearance.MaterialComponents.Headline5"
         tools:text="Button A"
-        android:layout_alignParentEnd="true"
-        android:layout_alignParentStart="true"
-        android:layout_alignParentTop="true"
-        android:layout_marginStart="@dimen/spacing_large"
-        android:layout_marginEnd="@dimen/spacing_large"
-        android:layout_marginTop="@dimen/spacing_large"
+        android:padding="@dimen/spacing_large"
         android:id="@+id/text_name"
         android:textAlignment="viewStart"
         android:textSize="16sp" />
 
-</RelativeLayout>
+    <FrameLayout
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_weight="1"
+        android:id="@+id/layout_state">
+
+        <org.dolphinemu.dolphinemu.features.input.ui.ControlStateBarHorizontal
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:id="@+id/control_state_bar" />
+
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal|center_vertical"
+            style="@style/TextAppearance.MaterialComponents.Headline5"
+            tools:text="0.1234"
+            android:padding="@dimen/spacing_large"
+            android:id="@+id/text_state"
+            android:textAlignment="center"
+            android:textSize="16sp" />
+
+    </FrameLayout>
+
+</LinearLayout>

Source/Android/app/src/main/res/layout/list_item_mapping.xml

@@ -22,7 +22,7 @@
         android:layout_marginTop="@dimen/spacing_large"
         android:textSize="16sp"
         android:textAlignment="viewStart"
-        android:layout_toStartOf="@+id/button_advanced_settings"
+        android:layout_toStartOf="@id/control_state_bar"
         tools:text="Setting Name" />
 
     <TextView
@@ -30,16 +30,23 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_alignParentStart="true"
-        android:layout_alignStart="@+id/text_setting_name"
-        android:layout_below="@+id/text_setting_name"
+        android:layout_alignStart="@id/text_setting_name"
+        android:layout_below="@id/text_setting_name"
         android:layout_marginBottom="@dimen/spacing_large"
         android:layout_marginEnd="@dimen/spacing_large"
         android:layout_marginStart="@dimen/spacing_large"
         android:layout_marginTop="@dimen/spacing_small"
-        android:layout_toStartOf="@+id/button_advanced_settings"
+        android:layout_toStartOf="@id/control_state_bar"
         android:textAlignment="viewStart"
         tools:text="@string/overclock_enable_description" />
 
+    <org.dolphinemu.dolphinemu.features.input.ui.ControlStateBarVertical
+        android:id="@+id/control_state_bar"
+        android:layout_width="4dp"
+        android:layout_height="16dp"
+        android:layout_centerVertical="true"
+        android:layout_toStartOf="@id/button_advanced_settings" />
+
     <Button
         android:id="@+id/button_advanced_settings"
         style="?attr/materialIconButtonStyle"

Source/Android/app/src/main/res/layout/view_control_state_bar_horizontal.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merge
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:parentTag="LinearLayout">
+
+    <View
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_weight="0"
+        android:id="@+id/view_filled"
+        android:background="@color/dolphin_errorContainer" />
+
+    <View
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_weight="1"
+        android:id="@+id/view_unfilled" />
+
+</merge>

Source/Android/app/src/main/res/layout/view_control_state_bar_vertical.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merge
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:parentTag="LinearLayout">
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:id="@+id/view_unfilled" />
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="0"
+        android:id="@+id/view_filled"
+        android:background="@color/dolphin_error" />
+
+</merge>