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Commit 0d1fc5c0 authored by Abdelrahman Awadalla's avatar Abdelrahman Awadalla
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Draw a trace of the movement of fingers 

Drawing a trace on the touchpad visualizer of the movement of the fingers on the touchpad. The a line between two different coordinates of the trace fades away after MAX_TRACE_HISTORY_DURATION_MILLIS time.

Test: atest TouchpadDebugViewTest
Test: Build
Test: Manual testing
Bug: 366476200
Flag: com.android.hardware.input.touchpad_visualizer
Change-Id: I452e2b4202ed89cb8b5c0441888173c40aa226c2
parent fa9a54fd
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