forked from upstream-mirrors/OpenTracks
Dennis Guse
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/*
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* Copyright 2009 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package de.dennisguse.opentracks.chart;
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import android.app.Activity;
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import android.content.SharedPreferences;
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import android.os.Bundle;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import androidx.annotation.NonNull;
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import androidx.fragment.app.Fragment;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import de.dennisguse.opentracks.R;
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import de.dennisguse.opentracks.TrackActivityDataHubInterface;
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import de.dennisguse.opentracks.content.TrackDataHub;
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import de.dennisguse.opentracks.content.TrackDataListener;
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import de.dennisguse.opentracks.content.data.Altitude;
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import de.dennisguse.opentracks.content.data.Marker;
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import de.dennisguse.opentracks.content.data.Speed;
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import de.dennisguse.opentracks.content.data.Track;
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import de.dennisguse.opentracks.content.data.TrackPoint;
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import de.dennisguse.opentracks.databinding.ChartBinding;
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import de.dennisguse.opentracks.settings.PreferencesUtils;
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import de.dennisguse.opentracks.stats.TrackStatistics;
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import de.dennisguse.opentracks.stats.TrackStatisticsUpdater;
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/**
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* A fragment to display track chart to the user.
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* ChartFragment uses a {@link TrackStatisticsUpdater} internally and recomputes the {@link TrackStatistics} from the beginning.
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*
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* @author Sandor Dornbush
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* @author Rodrigo Damazio
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*/
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public class ChartFragment extends Fragment implements TrackDataListener {
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private static final String KEY_CHART_VIEW_BY_DISTANCE_KEY = "chartViewByDistance";
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public static ChartFragment newInstance(boolean chartByDistance) {
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Bundle bundle = new Bundle();
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bundle.putBoolean(KEY_CHART_VIEW_BY_DISTANCE_KEY, chartByDistance);
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ChartFragment chartFragment = new ChartFragment();
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chartFragment.setArguments(bundle);
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return chartFragment;
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}
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private TrackDataHub trackDataHub;
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// Stats gathered from the received data
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private final List<ChartPoint> pendingPoints = new ArrayList<>();
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private String category = "";
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// Modes of operation
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private boolean chartByDistance;
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private ChartBinding viewBinding;
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private final SharedPreferences.OnSharedPreferenceChangeListener sharedPreferenceChangeListener = new SharedPreferences.OnSharedPreferenceChangeListener() {
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@Override
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public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
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if (PreferencesUtils.isKey(R.string.stats_units_key, key)) {
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boolean metricUnits = PreferencesUtils.isMetricUnits();
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if (metricUnits != viewBinding.chartView.getMetricUnits()) {
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viewBinding.chartView.setMetricUnits(metricUnits);
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runOnUiThread(() -> {
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if (isResumed()) {
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viewBinding.chartView.requestLayout();
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}
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});
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}
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}
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if (PreferencesUtils.isKey(R.string.stats_rate_key, key)) {
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boolean reportSpeed = PreferencesUtils.isReportSpeed(category);
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if (reportSpeed != viewBinding.chartView.getReportSpeed()) {
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viewBinding.chartView.setReportSpeed(reportSpeed);
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viewBinding.chartView.applyReportSpeed();
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runOnUiThread(() -> {
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if (isResumed()) {
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viewBinding.chartView.requestLayout();
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}
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});
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}
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}
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}
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};
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/**
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* A runnable that will setFrequency the orange pointer as appropriate and redraw.
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*/
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private final Runnable updateChart = new Runnable() {
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@Override
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public void run() {
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if (!isResumed()) {
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return;
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}
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viewBinding.chartView.setShowPointer(isSelectedTrackRecording());
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viewBinding.chartView.invalidate();
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}
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};
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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chartByDistance = getArguments().getBoolean(KEY_CHART_VIEW_BY_DISTANCE_KEY, true);
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}
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@Override
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public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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viewBinding = ChartBinding.inflate(inflater, container, false);
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viewBinding.chartView.setChartByDistance(chartByDistance);
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return viewBinding.getRoot();
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}
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@Override
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public void onResume() {
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super.onResume();
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resumeTrackDataHub();
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PreferencesUtils.registerOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
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checkChartSettings();
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getActivity().runOnUiThread(updateChart);
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}
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@Override
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public void onPause() {
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super.onPause();
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pauseTrackDataHub();
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PreferencesUtils.unregisterOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
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}
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@Override
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public void onDestroyView() {
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super.onDestroyView();
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viewBinding = null;
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}
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@Override
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public void onTrackUpdated(Track track) {
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if (isResumed()) {
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if (track == null) {
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category = "";
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return;
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}
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category = track.getCategory();
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boolean reportSpeed = PreferencesUtils.isReportSpeed(category);
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if (reportSpeed != viewBinding.chartView.getReportSpeed()) {
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viewBinding.chartView.setReportSpeed(reportSpeed);
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viewBinding.chartView.applyReportSpeed();
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}
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}
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}
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@Override
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public void clearTrackPoints() {
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if (isResumed()) {
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pendingPoints.clear();
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viewBinding.chartView.reset();
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runOnUiThread(() -> {
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if (isResumed()) {
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viewBinding.chartView.resetScroll();
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}
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});
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}
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}
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public void onSampledInTrackPoint(@NonNull TrackPoint trackPoint, @NonNull TrackStatistics trackStatistics, Speed smoothedSpeed, Altitude smoothedAltitude) {
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if (isResumed()) {
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ChartPoint point = new ChartPoint(trackStatistics, trackPoint, smoothedSpeed, smoothedAltitude, chartByDistance, viewBinding.chartView.getMetricUnits());
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pendingPoints.add(point);
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}
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}
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@Override
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public void onNewTrackPointsDone() {
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if (isResumed()) {
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//Avoid ConcurrentModificationException exception
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viewBinding.chartView.addChartPoints(Collections.unmodifiableList(pendingPoints));
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pendingPoints.clear();
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runOnUiThread(updateChart);
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}
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}
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@Override
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public void clearMarkers() {
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if (isResumed()) {
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viewBinding.chartView.clearMarker();
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}
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}
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@Override
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public void onNewMarker(@NonNull Marker marker) {
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if (isResumed()) {
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viewBinding.chartView.addMarker(marker);
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}
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}
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@Override
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public void onNewMarkersDone() {
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if (isResumed()) {
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runOnUiThread(updateChart);
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}
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}
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/**
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* Checks the chart settings.
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*/
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private void checkChartSettings() {
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boolean needUpdate = viewBinding.chartView.applyReportSpeed();
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if (needUpdate) {
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viewBinding.chartView.postInvalidate();
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}
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}
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/**
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* Resumes the trackDataHub.
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* Needs to be synchronized because trackDataHub can be accessed by multiple threads.
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*/
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private synchronized void resumeTrackDataHub() {
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trackDataHub = ((TrackActivityDataHubInterface) getActivity()).getTrackDataHub();
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trackDataHub.registerTrackDataListener(this);
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}
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/**
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* Pauses the trackDataHub.
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* Needs to be synchronized because trackDataHub can be accessed by multiple threads.
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*/
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private synchronized void pauseTrackDataHub() {
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trackDataHub.unregisterTrackDataListener(this);
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trackDataHub = null;
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}
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/**
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* Returns true if the selected track is recording.
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* Needs to be synchronized because trackDataHub can be accessed by multiple threads.
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*/
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@Deprecated
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//TODO Should not be dynamic but instead set while instantiating, i.e., newFragment().
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private synchronized boolean isSelectedTrackRecording() {
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return trackDataHub != null && trackDataHub.isSelectedTrackRecording();
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}
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/**
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* Runs a runnable on the UI thread if possible.
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*
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* @param runnable the runnable
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*/
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private void runOnUiThread(Runnable runnable) {
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Activity fragmentActivity = getActivity();
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if (fragmentActivity != null) {
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fragmentActivity.runOnUiThread(runnable);
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}
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}
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}
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Block a user