80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "InputTarget.h"
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#include <android-base/stringprintf.h>
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#include <inttypes.h>
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#include <string>
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using android::base::StringPrintf;
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namespace android::inputdispatcher {
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void InputTarget::addPointers(std::bitset<MAX_POINTER_ID + 1> newPointerIds,
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const ui::Transform& transform) {
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// The pointerIds can be empty, but still a valid InputTarget. This can happen when there is no
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// valid pointer property from the input event.
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if (newPointerIds.none()) {
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setDefaultPointerTransform(transform);
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return;
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}
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// Ensure that the new set of pointers doesn't overlap with the current set of pointers.
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LOG_ALWAYS_FATAL_IF((pointerIds & newPointerIds).any());
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pointerIds |= newPointerIds;
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for (size_t i = 0; i < newPointerIds.size(); i++) {
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if (!newPointerIds.test(i)) {
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continue;
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}
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pointerTransforms[i] = transform;
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}
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}
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void InputTarget::setDefaultPointerTransform(const ui::Transform& transform) {
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pointerIds.reset();
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pointerTransforms[0] = transform;
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}
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bool InputTarget::useDefaultPointerTransform() const {
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return pointerIds.none();
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}
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const ui::Transform& InputTarget::getDefaultPointerTransform() const {
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return pointerTransforms[0];
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}
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std::string InputTarget::getPointerInfoString() const {
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std::string out = "\n";
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if (useDefaultPointerTransform()) {
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const ui::Transform& transform = getDefaultPointerTransform();
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transform.dump(out, "default", " ");
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return out;
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}
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for (uint32_t i = 0; i < pointerIds.size(); i++) {
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if (!pointerIds.test(i)) {
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continue;
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}
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const std::string name = "pointerId " + std::to_string(i) + ":";
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pointerTransforms[i].dump(out, name.c_str(), " ");
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}
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return out;
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}
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} // namespace android::inputdispatcher
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