transmission/qt/freespace-label.cc

105 lines
2.1 KiB
C++

/*
* This file Copyright (C) 2013-2014 Mnemosyne LLC
*
* It may be used under the GNU GPL versions 2 or 3
* or any future license endorsed by Mnemosyne LLC.
*
* $Id$
*/
#include <libtransmission/transmission.h>
#include <libtransmission/variant.h>
#include "formatter.h"
#include "freespace-label.h"
#include "session.h"
namespace
{
static const int INTERVAL_MSEC = 15000;
}
FreespaceLabel::FreespaceLabel (QWidget * parent):
QLabel (parent),
mySession (nullptr),
myTag (-1),
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;
if (mySession != nullptr)
disconnect (mySession, nullptr, this, nullptr);
mySession = &session;
connect (mySession, SIGNAL (executed (int64_t, QString, tr_variant *)),
this, SLOT (onSessionExecuted (int64_t, QString, tr_variant *)));
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());
myTag = mySession->getUniqueTag ();
mySession->exec ("free-space", &args, myTag);
}
void
FreespaceLabel::onSessionExecuted (int64_t tag, const QString& result, tr_variant * arguments)
{
Q_UNUSED (result);
if (tag != myTag)
return;
QString str;
// update the label
int64_t bytes = -1;
tr_variantDictFindInt (arguments, TR_KEY_size_bytes, &bytes);
if (bytes >= 0)
setText (tr("%1 free").arg(Formatter::sizeToString (bytes)));
else
setText ("");
// update the tooltip
size_t len = 0;
const char * path = 0;
tr_variantDictFindStr (arguments, TR_KEY_path, &path, &len);
str = QString::fromUtf8 (path, len);
setToolTip (str);
myTimer.start ();
}