commit d22b3af81cf58daff1cf0d2161d1213860396364
author Jon Miranda <jonmiranda@google.com> Fri Mar 24 19:18:26 2023 +0000
committer Android (Google) Code Review <android-gerrit@google.com> Fri Mar 24 19:18:26 2023 +0000
tree 8ff8722699ce24436ed6fa3766e06204bacd33ba
parent 4ed9562b37c0615eeb4a5ee8fa18433072a7a1c1
parent a8f03bbe134b15bb0aa93a4d9752b42542957352

Merge "Update transient taskbar shadow alpha for light/dark theme." into tm-qpr-dev

quickstep/src/com/android/launcher3/taskbar/TaskbarBackgroundRenderer.kt

diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarBackgroundRenderer.kt b/quickstep/src/com/android/launcher3/taskbar/TaskbarBackgroundRenderer.kt
index 82b455d..f3b3054 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarBackgroundRenderer.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarBackgroundRenderer.kt
@@ -22,6 +22,7 @@
 import android.graphics.Path
 import android.graphics.RectF
 import com.android.launcher3.R
+import com.android.launcher3.Utilities
 import com.android.launcher3.Utilities.mapRange
 import com.android.launcher3.Utilities.mapToRange
 import com.android.launcher3.anim.Interpolators
@@ -31,6 +32,9 @@
 /** Helps draw the taskbar background, made up of a rectangle plus two inverted rounded corners. */
 class TaskbarBackgroundRenderer(context: TaskbarActivityContext) {
 
+    private val DARK_THEME_SHADOW_ALPHA = 51f
+    private val LIGHT_THEME_SHADOW_ALPHA = 25f
+
     val paint = Paint()
     val lastDrawnTransientRect = RectF()
     var backgroundHeight = context.deviceProfile.taskbarSize.toFloat()
@@ -42,6 +46,7 @@
 
     private val isTransientTaskbar = DisplayController.isTransientTaskbar(context)
 
+    private val shadowAlpha: Float
     private var shadowBlur = 0f
     private var keyShadowDistance = 0f
     private var bottomMargin = 0
@@ -73,6 +78,10 @@
             keyShadowDistance = res.getDimension(R.dimen.transient_taskbar_key_shadow_distance)
         }
 
+        shadowAlpha =
+            if (Utilities.isDarkTheme(context)) DARK_THEME_SHADOW_ALPHA
+            else LIGHT_THEME_SHADOW_ALPHA
+
         setCornerRoundness(DEFAULT_ROUNDNESS)
     }
 
@@ -142,13 +151,13 @@
                     -mapRange(1f - progress, 0f, stashedHandleHeight / 2f)
 
             // Draw shadow.
-            val shadowAlpha =
-                mapToRange(paint.alpha.toFloat(), 0f, 255f, 0f, 25f, Interpolators.LINEAR)
+            val newShadowAlpha =
+                mapToRange(paint.alpha.toFloat(), 0f, 255f, 0f, shadowAlpha, Interpolators.LINEAR)
             paint.setShadowLayer(
                 shadowBlur,
                 0f,
                 keyShadowDistance,
-                setColorAlphaBound(Color.BLACK, Math.round(shadowAlpha))
+                setColorAlphaBound(Color.BLACK, Math.round(newShadowAlpha))
             )
 
             lastDrawnTransientRect.set(