transmission/qt/FreeSpaceLabel.cc

100 lines
1.9 KiB
C++

/*
* This file Copyright (C) 2013-2016 Mnemosyne LLC
*
* It may be used under the GNU GPL versions 2 or 3
* or any future license endorsed by Mnemosyne LLC.
*
*/
#include <QDir>
#include <libtransmission/transmission.h>
#include <libtransmission/variant.h>
#include "Formatter.h"
#include "FreeSpaceLabel.h"
#include "RpcQueue.h"
#include "Session.h"
namespace
{
static const int INTERVAL_MSEC = 15000;
}
FreeSpaceLabel::FreeSpaceLabel (QWidget * parent):
QLabel (parent),
mySession (nullptr),
myTimer (this)
{
myTimer.setSingleShot (true);
myTimer.setInterval (INTERVAL_MSEC);
connect (&myTimer, SIGNAL (timeout ()), this, SLOT (onTimer ()));
}
void
FreeSpaceLabel::setSession (Session& session)
{
if (mySession == &session)
return;
mySession = &session;
onTimer ();
}
void
FreeSpaceLabel::setPath (const QString& path)
{
if (myPath != path)
{
setText (tr("<i>Calculating Free Space...</i>"));
myPath = path;
onTimer ();
}
}
void
FreeSpaceLabel::onTimer ()
{
myTimer.stop ();
if (mySession == nullptr || myPath.isEmpty ())
return;
tr_variant args;
tr_variantInitDict (&args, 1);
tr_variantDictAddStr (&args, TR_KEY_path, myPath.toUtf8 ().constData());
RpcQueue * q = new RpcQueue ();
q->add (
[this, &args] ()
{
return mySession->exec ("free-space", &args);
});
q->add (
[this] (const RpcResponse& r)
{
QString str;
// update the label
int64_t bytes = -1;
if (tr_variantDictFindInt (r.args.get (), TR_KEY_size_bytes, &bytes) && bytes >= 0)
setText (tr ("%1 free").arg (Formatter::sizeToString (bytes)));
else
setText (QString ());
// update the tooltip
size_t len = 0;
const char * path = 0;
tr_variantDictFindStr (r.args.get (), TR_KEY_path, &path, &len);
str = QString::fromUtf8 (path, len);
setToolTip (QDir::toNativeSeparators (str));
myTimer.start ();
});
q->run ();
}