110 lines
3.5 KiB
Java
110 lines
3.5 KiB
Java
/*
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* Copyright (C) 2022 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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package com.android.settings.fuelgauge.batteryusage;
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import androidx.annotation.NonNull;
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import androidx.core.util.Preconditions;
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import java.util.List;
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import java.util.Locale;
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import java.util.Objects;
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/** The view model of {@code BatteryChartView} */
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class BatteryChartViewModel {
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private static final String TAG = "BatteryChartViewModel";
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public static final int SELECTED_INDEX_ALL = -1;
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public static final int SELECTED_INDEX_INVALID = -2;
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// We need at least 2 levels to draw a trapezoid.
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private static final int MIN_LEVELS_DATA_SIZE = 2;
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enum AxisLabelPosition {
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BETWEEN_TRAPEZOIDS,
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CENTER_OF_TRAPEZOIDS,
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}
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private final List<Integer> mLevels;
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private final List<String> mTexts;
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private final AxisLabelPosition mAxisLabelPosition;
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private int mSelectedIndex = SELECTED_INDEX_ALL;
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BatteryChartViewModel(
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@NonNull List<Integer> levels, @NonNull List<String> texts,
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@NonNull AxisLabelPosition axisLabelPosition) {
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Preconditions.checkArgument(
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levels.size() == texts.size() && levels.size() >= MIN_LEVELS_DATA_SIZE,
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String.format(Locale.ENGLISH,
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"Invalid BatteryChartViewModel levels.size: %d, texts.size: %d.",
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levels.size(), texts.size()));
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mLevels = levels;
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mTexts = texts;
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mAxisLabelPosition = axisLabelPosition;
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}
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public int size() {
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return mLevels.size();
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}
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public List<Integer> levels() {
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return mLevels;
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}
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public List<String> texts() {
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return mTexts;
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}
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public AxisLabelPosition axisLabelPosition() {
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return mAxisLabelPosition;
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}
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public int selectedIndex() {
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return mSelectedIndex;
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}
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public void setSelectedIndex(int index) {
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mSelectedIndex = index;
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}
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@Override
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public int hashCode() {
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return Objects.hash(mLevels, mTexts, mSelectedIndex, mAxisLabelPosition);
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}
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@Override
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public boolean equals(Object other) {
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if (this == other) {
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return true;
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} else if (!(other instanceof BatteryChartViewModel)) {
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return false;
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}
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final BatteryChartViewModel batteryChartViewModel = (BatteryChartViewModel) other;
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return Objects.equals(mLevels, batteryChartViewModel.mLevels)
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&& Objects.equals(mTexts, batteryChartViewModel.mTexts)
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&& mAxisLabelPosition == batteryChartViewModel.mAxisLabelPosition
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&& mSelectedIndex == batteryChartViewModel.mSelectedIndex;
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}
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@Override
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public String toString() {
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return String.format(Locale.ENGLISH,
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"levels: %s,\ntexts: %s,\naxisLabelPosition: %s, selectedIndex: %d",
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Objects.toString(mLevels), Objects.toString(mTexts), mAxisLabelPosition,
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mSelectedIndex);
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}
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}
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