mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-08-01 03:23:26 +02:00
391 lines
14 KiB
Java
391 lines
14 KiB
Java
/* Copyright (C) 2015-2024 Andreas Shimokawa, Carsten Pfeiffer, Daniele
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Gobbetti, Dikay900, José Rebelo, Pavel Elagin, Petr Vaněk, walkjivefly
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This file is part of Gadgetbridge.
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Gadgetbridge is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Gadgetbridge is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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package nodomain.freeyourgadget.gadgetbridge.activities.charts;
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import android.annotation.SuppressLint;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.os.AsyncTask;
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import android.os.Bundle;
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import android.view.View;
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import androidx.fragment.app.FragmentActivity;
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import androidx.localbroadcastmanager.content.LocalBroadcastManager;
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import com.github.mikephil.charting.charts.BarChart;
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import com.github.mikephil.charting.charts.BarLineChartBase;
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import com.github.mikephil.charting.charts.Chart;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.text.SimpleDateFormat;
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import java.util.Arrays;
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import java.util.Date;
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import java.util.HashSet;
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import java.util.Set;
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import nodomain.freeyourgadget.gadgetbridge.R;
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import nodomain.freeyourgadget.gadgetbridge.activities.AbstractGBFragment;
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import nodomain.freeyourgadget.gadgetbridge.database.DBAccess;
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import nodomain.freeyourgadget.gadgetbridge.database.DBHandler;
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import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
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import nodomain.freeyourgadget.gadgetbridge.util.DateTimeUtils;
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/**
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* A base class fragment to be used with ChartsActivity. The fragment can supply
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* a title to be displayed in the activity by returning non-null in #getTitle()
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* Broadcast events can be received by overriding #onReceive(Context,Intent).
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* The chart can be refreshed by calling #refresh()
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* Implement refreshInBackground(DBHandler, GBDevice) to fetch the samples from the DB,
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* and add the samples to the chart. The actual rendering, which must be performed in the UI
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* thread, must be done in #renderCharts().
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* Access functionality of the hosting activity with #getHost()
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* <p/>
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* The hosting ChartsHost activity provides a section for displaying a date or date range
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* being the basis for the chart, as well as two buttons for moving backwards and forward
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* in time. The date is held by the activity, so that it can be shared by multiple chart
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* fragments. It is still the responsibility of the (currently visible) chart fragment
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* to set the desired date in the ChartsActivity via #setDateRange(Date,Date).
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* The default implementations #handleDatePrev(Date,Date) and #handleDateNext(Date,Date)
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* shift the date by one day.
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*/
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public abstract class AbstractChartFragment<D extends ChartsData> extends AbstractGBFragment {
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protected final int ANIM_TIME = 250;
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private static final Logger LOG = LoggerFactory.getLogger(AbstractChartFragment.class);
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@SuppressLint("SimpleDateFormat")
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protected final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
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private final Set<String> mIntentFilterActions;
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private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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AbstractChartFragment.this.onReceive(context, intent);
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}
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};
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private boolean mChartDirty = true;
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private AsyncTask refreshTask;
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protected AbstractChartFragment(String... intentFilterActions) {
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mIntentFilterActions = new HashSet<>();
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if (intentFilterActions != null) {
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mIntentFilterActions.addAll(Arrays.asList(intentFilterActions));
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}
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mIntentFilterActions.add(ChartsHost.DATE_NEXT_DAY);
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mIntentFilterActions.add(ChartsHost.DATE_PREV_DAY);
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mIntentFilterActions.add(ChartsHost.DATE_NEXT_WEEK);
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mIntentFilterActions.add(ChartsHost.DATE_PREV_WEEK);
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mIntentFilterActions.add(ChartsHost.DATE_NEXT_MONTH);
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mIntentFilterActions.add(ChartsHost.DATE_PREV_MONTH);
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mIntentFilterActions.add(ChartsHost.REFRESH);
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}
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@Override
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public abstract String getTitle();
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/**
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* Called in the fragment's onCreate, initializes this fragment.
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*/
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protected abstract void init();
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/**
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* This method reads the data from the database, analyzes and prepares it for
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* the charts. This will be called from a background task, so there must not be
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* any UI access. #updateChartsInUIThread and #renderCharts will be automatically called after this method.
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*/
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protected abstract D refreshInBackground(ChartsHost chartsHost, DBHandler db, GBDevice device);
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/**
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* Triggers the actual (re-) rendering of the chart.
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* Always called from the UI thread.
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*/
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protected abstract void renderCharts();
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protected abstract void setupLegend(Chart<?> chart);
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protected abstract void updateChartsnUIThread(D chartsData);
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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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init();
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final IntentFilter filter = new IntentFilter();
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for (String action : mIntentFilterActions) {
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filter.addAction(action);
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}
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LocalBroadcastManager.getInstance(requireActivity()).registerReceiver(mReceiver, filter);
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}
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@Override
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public void onDestroy() {
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super.onDestroy();
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LocalBroadcastManager.getInstance(requireActivity()).unregisterReceiver(mReceiver);
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}
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/**
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* Called when this fragment has been fully scrolled into the activity.
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*
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* @see #isVisibleInActivity()
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* @see #onMadeInvisibleInActivity()
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*/
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@Override
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protected void onMadeVisibleInActivity() {
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super.onMadeVisibleInActivity();
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showDateBar(true);
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if (mChartDirty) {
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refresh();
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}
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}
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protected ChartsHost getChartsHost() {
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return (ChartsHost) requireActivity();
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}
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private void setStartDate(Date date) {
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getChartsHost().setStartDate(date);
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}
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private void setEndDate(Date date) {
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getChartsHost().setEndDate(date);
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}
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public Date getStartDate() {
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return getChartsHost().getStartDate();
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}
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public Date getEndDate() {
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return getChartsHost().getEndDate();
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}
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protected int getTSEnd() {
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return toTimestamp(getEndDate());
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}
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protected int getTSStart() {
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return toTimestamp(getStartDate());
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}
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protected int toTimestamp(Date date) {
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return (int) ((date.getTime() / 1000));
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}
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protected void showDateBar(boolean show) {
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getChartsHost().getDateBar().setVisibility(show ? View.VISIBLE : View.GONE);
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}
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protected void onReceive(Context context, Intent intent) {
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String action = intent.getAction();
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if (ChartsHost.REFRESH.equals(action)) {
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refresh();
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} else if (ChartsHost.DATE_NEXT_DAY.equals(action)) {
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handleDate(getStartDate(), getEndDate(), +1);
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} else if (ChartsHost.DATE_PREV_DAY.equals(action)) {
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handleDate(getStartDate(), getEndDate(), -1);
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} else if (ChartsHost.DATE_NEXT_WEEK.equals(action)) {
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handleDate(getStartDate(), getEndDate(), +7);
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} else if (ChartsHost.DATE_PREV_WEEK.equals(action)) {
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handleDate(getStartDate(), getEndDate(), -7);
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} else if (ChartsHost.DATE_NEXT_MONTH.equals(action)) {
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//calculate dates to jump by month but keep subsequent logic working
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int time1 = DateTimeUtils.shiftMonths((int) (getStartDate().getTime() / 1000), 1);
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int time2 = DateTimeUtils.shiftMonths((int) (getEndDate().getTime() / 1000), 1);
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Date date1 = DateTimeUtils.shiftByDays(new Date(time1 * 1000L), 30);
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Date date2 = DateTimeUtils.shiftByDays(new Date(time2 * 1000L), 30);
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handleDate(date1, date2, -30);
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} else if (ChartsHost.DATE_PREV_MONTH.equals(action)) {
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int time1 = DateTimeUtils.shiftMonths((int) (getStartDate().getTime() / 1000), -1);
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int time2 = DateTimeUtils.shiftMonths((int) (getEndDate().getTime() / 1000), -1);
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Date date1 = DateTimeUtils.shiftByDays(new Date(time1 * 1000L), -30);
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Date date2 = DateTimeUtils.shiftByDays(new Date(time2 * 1000L), -30);
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handleDate(date1, date2, 30);
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}
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}
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/**
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* Default implementation shifts the dates by one day, if visible
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* and calls #refreshIfVisible().
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*
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* @param startDate the start date
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* @param endDate the end date
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* @param offset the offset, in days
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*/
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private void handleDate(Date startDate, Date endDate, Integer offset) {
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if (isVisibleInActivity()) {
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if (!shiftDates(startDate, endDate, offset)) {
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return;
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}
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}
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refreshIfVisible();
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}
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private void refreshIfVisible() {
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if (isVisibleInActivity()) {
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refresh();
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} else {
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mChartDirty = true;
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}
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}
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/**
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* Shifts the given dates by offset days. offset may be positive or negative.
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*
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* @param startDate the start date
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* @param endDate the end date
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* @param offset a positive or negative number of days to shift the dates
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* @return true if the shift was successful and false otherwise
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*/
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private boolean shiftDates(Date startDate, Date endDate, int offset) {
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Date newStart = DateTimeUtils.shiftByDays(startDate, offset);
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Date newEnd = DateTimeUtils.shiftByDays(endDate, offset);
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Date now = new Date();
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if (newEnd.after(now)) { //allow to jump to the end (now) if week/month reach after now
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newEnd = now;
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newStart = DateTimeUtils.shiftByDays(now, -1);
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}
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return setDateRange(newStart, newEnd);
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}
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protected void configureChartDefaults(Chart<?> chart) {
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chart.getXAxis().setValueFormatter(new TimestampValueFormatter());
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chart.getDescription().setText("");
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// if enabled, the chart will always start at zero on the y-axis
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chart.setNoDataText(getString(R.string.chart_no_data_synchronize));
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// disable value highlighting
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chart.setHighlightPerTapEnabled(false);
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// enable touch gestures
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chart.setTouchEnabled(true);
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// commented out: this has weird bugs/side-effects at least on WeekStepsCharts
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// where only the first Day-label is drawn, because AxisRenderer.computeAxisValues(float,float)
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// appears to have an overflow when calculating 'n' (number of entries)
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// chart.getXAxis().setGranularity(60*5);
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setupLegend(chart);
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}
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protected void configureBarLineChartDefaults(BarLineChartBase<?> chart) {
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configureChartDefaults(chart);
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if (chart instanceof BarChart) {
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((BarChart) chart).setFitBars(true);
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}
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// enable scaling and dragging
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chart.setDragEnabled(true);
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chart.setScaleEnabled(true);
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// if disabled, scaling can be done on x- and y-axis separately
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// chart.setPinchZoom(true);
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chart.setDrawGridBackground(false);
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}
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/**
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* This method will invoke a background task to read the data from the
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* database, analyze it, prepare it for the charts and eventually call
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* #renderCharts
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*/
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protected void refresh() {
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LOG.info("Refreshing data for {} from {} to {}", getTitle(), sdf.format(getStartDate()), sdf.format(getEndDate()));
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ChartsHost chartsHost = getChartsHost();
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if (chartsHost != null) {
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if (chartsHost.getDevice() != null) {
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mChartDirty = false;
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updateDateInfo(getStartDate(), getEndDate());
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if (refreshTask != null && refreshTask.getStatus() != AsyncTask.Status.FINISHED) {
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refreshTask.cancel(true);
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}
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refreshTask = createRefreshTask("Visualizing data", getActivity()).execute();
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}
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}
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}
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private RefreshTask createRefreshTask(final String task, final Context context) {
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return new RefreshTask(task, context);
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}
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@SuppressLint("StaticFieldLeak")
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private final class RefreshTask extends DBAccess {
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private D chartsData;
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public RefreshTask(final String task, final Context context) {
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super(task, context);
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}
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@Override
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protected void doInBackground(final DBHandler db) {
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final ChartsHost chartsHost = getChartsHost();
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if (chartsHost != null) {
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chartsData = refreshInBackground(chartsHost, db, chartsHost.getDevice());
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} else {
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cancel(true);
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}
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}
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@Override
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protected void onPostExecute(final Object o) {
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super.onPostExecute(o);
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final FragmentActivity activity = getActivity();
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if (activity != null && !activity.isFinishing() && !activity.isDestroyed()) {
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updateChartsnUIThread(chartsData);
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renderCharts();
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} else {
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LOG.info("Not rendering charts because activity is not available anymore");
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}
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}
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}
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/**
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* Returns true if the date was successfully shifted, and false if the shift
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* was ignored, e.g. when the to-value is in the future.
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*
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* @param from the start date
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* @param to the end date
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*/
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private boolean setDateRange(final Date from, final Date to) {
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if (from.compareTo(to) > 0) {
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throw new IllegalArgumentException("Bad date range: " + from + ".." + to);
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}
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final Date now = new Date();
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if (to.after(now) || //do not refresh chart if we reached now
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to.getTime() / 10000 == (getEndDate().getTime() / 10000)) {
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return false;
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}
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setStartDate(from);
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setEndDate(to);
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return true;
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}
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private void updateDateInfo(final Date from, final Date to) {
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if (from.equals(to)) {
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getChartsHost().setDateInfo(DateTimeUtils.formatDate(from));
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} else {
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getChartsHost().setDateInfo(DateTimeUtils.formatDateRange(from, to));
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}
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}
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}
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