/* 系统初始化 */
void initVars(void){
/*-- After load Panel, you can init args' value right here ---*/
//Panel relative Vals
GetPanelAttribute(panelHdl, ATTR_WIDTH, &pWidth);
GetPanelAttribute(panelHdl, ATTR_HEIGHT, &pHeight);
GetPanelAttribute(panelHdl, ATTR_MENU_HEIGHT, &mHeight);
validMonNum = 6;
averSpaceH = 8; averSpaceV = 20; extraRight = 150;
pHeight = pHeight - mHeight;
cWidth = (pWidth - extraRight - averSpaceH*3)/3;
cHeight = (pHeight - averSpaceV*2)/2;
plotBakgColor = MakeColor(200, 200, 200); //Set background color of graphs
plotGridColor = MakeColor(10, 10, 10);
plotLineColor = MakeColor(136, 0, 25);
graphScaleMode = VAL_MANUAL; //or VAL_MANUAL VAL_AUTOSCALE
//x,y坐标的标值范围
xAxisRange[0] = 0.0, xAxisRange[1] = 9.0; //temp
yAxisRange[0] =0.00, yAxisRange[1] = 3.00;
popPanelIsPloting = 0;
//Create a ThreadPool
if(setupThreadPool()<0){
MessagePopup("s", "Create thread pool error.");
}
//ChildPanel,TabPage、and Popup panel's Vals
tabWidth = pWidth-extraRight-averSpaceH*3;
tabHeight = pHeight - averSpaceV*3;
dataSrc = 0;
for(int i=0; i<validMonNum; i++)
signalShowingStat[i] = 1;
//init the necessary Directory this system needs
initDirectorySets();
refreshDimmedStat();
isDataAcqRunning = 0;
}
void Downloader::start() {
// Fetch HEAD to find out the size but also if it exists.
reply = getHead(url);
if (!reply) {
QCoreApplication::exit(-1);
return;
}
url = reply->url();
// Find "Content-Length". If not found then it keeps operating (with
// a single connection) not knowing the total size but it will
// eventually be known from the first chunk progress information.
bool ok;
if (reply->hasRawHeader("Content-Length")) {
contentLen =
QString::fromUtf8(reply->rawHeader("Content-Length")).toLongLong(&ok);
if (!ok || contentLen == 0) {
qCritical() << "ERROR Invalid content length:" << contentLen;
contentLen = -1;
}
}
// Check if the total is different than the Content-Length and, if
// so, then change to that number.
if (reply->hasRawHeader("Content-Range")) {
single = false;
QString range = QString::fromUtf8(reply->rawHeader("Content-Range"));
QStringList elms = range.split("/", QString::SkipEmptyParts);
if (elms.size() == 2) {
qint64 tot = elms[1].toLongLong(&ok);
if (ok && tot > 0 && tot != contentLen) {
contentLen = tot;
}
}
}
QString type;
if (reply->hasRawHeader("Content-Type")) {
type = QString::fromUtf8(reply->rawHeader("Content-Type"));
int pos;
if ((pos = type.indexOf(";")) != -1) {
type = type.mid(0, pos);
}
}
// Check if filename is defined.
if (reply->hasRawHeader("Content-Disposition")) {
QString hdr = QString::fromUtf8(reply->rawHeader("Content-Disposition"));
int pos = hdr.indexOf("; filename=");
if (pos != -1) {
hdr = hdr.mid(pos + 11).trimmed();
if (hdr.startsWith("\"")) {
hdr = hdr.mid(1);
}
if (hdr.endsWith("\"")) {
hdr.chop(1);
}
if (!hdr.isEmpty()) {
fileOverride = hdr;
}
}
}
QString fsize;
if (contentLen == -1) {
fsize = "Unknown";
}
else {
fsize = Util::formatSize(contentLen, 1);
}
qDebug() << "File size" << qPrintable(fsize)
<< qPrintable(!type.isEmpty() ? "[" + type + "]" : "");
// Check for header "Accept-Ranges" and whether it has "bytes"
// supported.
resumable = false;
if (reply->hasRawHeader("Accept-Ranges")) {
const QString ranges = QString::fromUtf8(reply->rawHeader("Accept-Ranges"));
resumable = ranges.toLower().contains("bytes");
}
if (verbose) {
qDebug() << qPrintable(QString("%1RESUMABLE").
arg(resumable ? "" : "NOT "));
}
if (!resumable && resume) {
qCritical() << "ERROR Cannot resume because server doesn't support it!";
QCoreApplication::exit(-1);
return;
}
else if (resumable && resume && contentLen == -1) {
qCritical() << "ERROR Cannot resume because the content length is unknown!";
QCoreApplication::exit(-1);
return;
}
// Clean reply.
reply->close();
reply = nullptr;
// If performing a dry run then stop now.
if (dryRun) {
emit finished();
return;
}
if (!setupFile()) {
QCoreApplication::exit(-1);
return;
}
createRanges();
setupThreadPool();
emit information(outputPath, contentLen, rangeCount, conns, offset);
// Start actual download.
download();
}
