| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "flutter/lib/ui/window/pointer_data.h" |
| |
| #include <cstring> |
| |
| namespace flutter { |
| |
| // The number of fields of PointerData. |
| // |
| // If kPointerDataFieldCount changes, update the corresponding values to: |
| // |
| // * _kPointerDataFieldCount in platform_dispatcher.dart |
| // * POINTER_DATA_FIELD_COUNT in AndroidTouchProcessor.java |
| // |
| // (This is a centralized list of all locations that should be kept up-to-date.) |
| static constexpr int kPointerDataFieldCount = 36; |
| static constexpr int kBytesPerField = sizeof(int64_t); |
| |
| static_assert(sizeof(PointerData) == kBytesPerField * kPointerDataFieldCount, |
| "PointerData has the wrong size"); |
| |
| void PointerData::Clear() { |
| memset(this, 0, sizeof(PointerData)); |
| } |
| |
| } // namespace flutter |
