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https://github.com/GoldenCheetah/GoldenCheetah.git
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This commit is contained in:
Sean C. Rhea
307
src/DownloadRideDialog.cpp
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307
src/DownloadRideDialog.cpp
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/*
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* $Id: DownloadRideDialog.cpp,v 1.4 2006/08/11 20:02:13 srhea Exp $
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*
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* Copyright (c) 2006-2008 Sean C. Rhea (srhea@srhea.net)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 51
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "DownloadRideDialog.h"
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#include "MainWindow.h"
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#include <assert.h>
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#include <string.h>
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#include <errno.h>
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#include <QtGui>
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#include <math.h>
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#include <boost/bind.hpp>
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DownloadRideDialog::DownloadRideDialog(MainWindow *mainWindow,
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const QDir &home) :
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mainWindow(mainWindow), home(home), cancelled(false),
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downloadInProgress(false), recInt(0), endingOffset(0)
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{
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setAttribute(Qt::WA_DeleteOnClose);
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setWindowTitle("Download Ride Data");
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listWidget = new QListWidget(this);
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listWidget->setSelectionMode(QAbstractItemView::SingleSelection);
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QLabel *availLabel = new QLabel(tr("Available devices:"), this);
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QLabel *instructLabel = new QLabel(tr("Instructions:"), this);
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label = new QLabel(this);
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label->setIndent(10);
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downloadButton = new QPushButton(tr("&Download"), this);
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rescanButton = new QPushButton(tr("&Rescan"), this);
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cancelButton = new QPushButton(tr("&Cancel"), this);
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connect(downloadButton, SIGNAL(clicked()), this, SLOT(downloadClicked()));
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connect(rescanButton, SIGNAL(clicked()), this, SLOT(scanDevices()));
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connect(cancelButton, SIGNAL(clicked()), this, SLOT(cancelClicked()));
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connect(listWidget,
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SIGNAL(itemSelectionChanged()), this, SLOT(setReadyInstruct()));
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connect(listWidget, SIGNAL(itemDoubleClicked(QListWidgetItem*)),
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this, SLOT(downloadClicked()));
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QHBoxLayout *buttonLayout = new QHBoxLayout;
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buttonLayout->addWidget(downloadButton);
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buttonLayout->addWidget(rescanButton);
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buttonLayout->addWidget(cancelButton);
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QVBoxLayout *mainLayout = new QVBoxLayout(this);
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mainLayout->addWidget(availLabel);
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mainLayout->addWidget(listWidget);
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mainLayout->addWidget(instructLabel);
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mainLayout->addWidget(label);
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mainLayout->addLayout(buttonLayout);
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scanDevices();
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}
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void
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DownloadRideDialog::setReadyInstruct()
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{
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int selected = listWidget->selectedItems().size();
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assert(selected <= 1);
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if (selected == 0) {
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if (listWidget->count() > 1) {
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label->setText(tr("Select the device from the above list from\n"
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"which you would like to download a ride."));
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}
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else {
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label->setText(tr("No devices found. Make sure the PowerTap\n"
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"unit is plugged into the computer's USB port,\n"
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"then click \"Rescan\" to check again."));
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}
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downloadButton->setEnabled(false);
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}
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else {
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label->setText(tr("Make sure the PowerTap unit is turned on,\n"
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"and that the screen display says, \"Host\",\n"
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"then click Download to begin downloading."));
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downloadButton->setEnabled(true);
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}
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}
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void
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DownloadRideDialog::scanDevices()
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{
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listWidget->clear();
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QString err;
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devList = Device::listDevices(err);
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for (int i = 0; i < devList.size(); ++i)
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new QListWidgetItem(devList[i]->name(), listWidget);
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if (listWidget->count() > 0) {
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listWidget->setCurrentRow(0);
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downloadButton->setFocus();
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}
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setReadyInstruct();
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}
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bool
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DownloadRideDialog::statusCallback(PowerTap::State state)
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{
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if (state == PowerTap::STATE_READING_VERSION)
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label->setText("Reading version...");
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else if (state == PowerTap::STATE_READING_HEADER)
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label->setText(label->text() + "done.\nReading header...");
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else if (state == PowerTap::STATE_READING_DATA) {
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label->setText(label->text() + "done.\nReading ride data...\n");
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endingOffset = label->text().length();
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}
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else {
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assert(state == PowerTap::STATE_DATA_AVAILABLE);
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unsigned char *buf = records.data();
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if (recInt == 0.0) {
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for (int i = 0; i < records.size(); i += 6) {
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if (PowerTap::is_config(buf + i)) {
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unsigned unused1, unused2, unused3;
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PowerTap::unpack_config(buf + i, &unused1, &unused2,
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&recInt, &unused3);
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}
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}
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}
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if (recInt != 0.0) {
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int min = (int) round(records.size() / 6 * recInt * 0.021);
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QString existing = label->text();
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existing.chop(existing.size() - endingOffset);
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existing.append(QString("Ride data read: %1:%2").arg(min / 60)
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.arg(min % 60, 2, 10, QLatin1Char('0')));
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label->setText(existing);
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}
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if (filename == "") {
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struct tm time;
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for (int i = 0; i < records.size(); i += 6) {
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if (PowerTap::is_time(buf + i)) {
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PowerTap::unpack_time(buf + i, &time);
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char tmp[32];
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sprintf(tmp, "%04d_%02d_%02d_%02d_%02d_%02d.raw",
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time.tm_year + 1900, time.tm_mon + 1,
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time.tm_mday, time.tm_hour, time.tm_min,
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time.tm_sec);
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filename = tmp;
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filepath = home.absolutePath() + "/" + filename;
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FILE *out = fopen(filepath.toAscii().constData(), "r");
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if (out) {
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fclose(out);
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if (QMessageBox::warning(
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this,
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tr("Ride Already Downloaded"),
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tr("This ride appears to have already ")
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+ tr("been downloaded. Do you want to ")
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+ tr("download it again and overwrite ")
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+ tr("the previous download?"),
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tr("&Overwrite"), tr("&Cancel"),
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QString(), 1, 1) == 1) {
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reject();
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return false;
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}
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}
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break;
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}
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}
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}
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}
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QCoreApplication::processEvents();
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return !cancelled;
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}
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void
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DownloadRideDialog::downloadClicked()
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{
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downloadButton->setEnabled(false);
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rescanButton->setEnabled(false);
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downloadInProgress = true;
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DevicePtr dev;
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for (int i = 0; i < devList.size(); ++i) {
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if (devList[i]->name() == listWidget->currentItem()->text()) {
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dev = devList[i];
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break;
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}
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}
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assert(dev);
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QString err;
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QByteArray version;
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if (!PowerTap::download(
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dev, version, records,
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boost::bind(&DownloadRideDialog::statusCallback, this, _1), err))
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{
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if (cancelled) {
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QMessageBox::information(this, tr("Download canceled"),
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tr("Cancel clicked by user."));
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cancelled = false;
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}
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else {
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QMessageBox::information(this, tr("Download failed"), err);
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}
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downloadInProgress = false;
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reject();
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return;
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}
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QString tmpname;
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{
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// QTemporaryFile doesn't actually close the file on .close(); it
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// closes the file when in its destructor. On Windows, we can't
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// rename an open file. So let tmp go out of scope before calling
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// rename.
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QString tmpl = home.absoluteFilePath(".ptdl.XXXXXX");
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QTemporaryFile tmp(tmpl);
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tmp.setAutoRemove(false);
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if (!tmp.open()) {
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QMessageBox::critical(this, tr("Error"),
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tr("Failed to create temporary file ")
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+ tmpl + ": " + tmp.error());
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reject();
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return;
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}
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QTextStream os(&tmp);
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os << hex;
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os.setPadChar('0');
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struct tm time;
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bool time_set = false;
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unsigned char *data = records.data();
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for (int i = 0; i < records.size(); i += 6) {
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if (data[i] == 0)
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continue;
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for (int j = 0; j < 6; ++j) {
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os.setFieldWidth(2);
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os << data[i+j];
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os.setFieldWidth(1);
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os << ((j == 5) ? "\n" : " ");
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}
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if (!time_set && PowerTap::is_time(data + i)) {
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PowerTap::unpack_time(data + i, &time);
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time_set = true;
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}
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}
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if (!time_set) {
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QMessageBox::critical(this, tr("Error"),
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tr("Failed to find ride time."));
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tmp.setAutoRemove(true);
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reject();
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return;
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}
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tmpname = tmp.fileName(); // after close(), tmp.fileName() is ""
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tmp.close();
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// QTemporaryFile initially has permissions set to 0600.
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// Make it readable by everyone.
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tmp.setPermissions(tmp.permissions()
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| QFile::ReadOwner | QFile::ReadUser
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| QFile::ReadGroup | QFile::ReadOther);
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}
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#ifdef __WIN32__
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// Windows ::rename won't overwrite an existing file.
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if (QFile::exists(filepath)) {
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QFile old(filepath);
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if (!old.remove()) {
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QMessageBox::critical(this, tr("Error"),
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tr("Failed to remove existing file ")
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+ filepath + ": " + old.error());
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QFile::remove(tmpname);
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reject();
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}
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}
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#endif
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// Use ::rename() instead of QFile::rename() to get forced overwrite.
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if (rename(QFile::encodeName(tmpname), QFile::encodeName(filepath)) < 0) {
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QMessageBox::critical(this, tr("Error"),
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tr("Failed to rename ") + tmpname + tr(" to ")
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+ filepath + ": " + strerror(errno));
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QFile::remove(tmpname);
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reject();
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return;
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}
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QMessageBox::information(this, tr("Success"), tr("Download complete."));
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mainWindow->addRide(filename);
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downloadInProgress = false;
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accept();
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}
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void
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DownloadRideDialog::cancelClicked()
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{
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if (!downloadInProgress)
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reject();
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else
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cancelled = true;
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}
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