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#include "clientmodel.h"
#include "guiconstants.h"
#include "optionsmodel.h"
#include "addresstablemodel.h"
#include "transactiontablemodel.h"
#include "alert.h"
#include "main.h"
#include "ui_interface.h"
#include <QDateTime>
#include <QTimer>
static const int64 nClientStartupTime = GetTime();
ClientModel::ClientModel(OptionsModel *optionsModel, QObject *parent) :
QObject(parent), optionsModel(optionsModel),
cachedNumBlocks(0), cachedNumBlocksOfPeers(0), numBlocksAtStartup(-1), pollTimer(0)
{
pollTimer = new QTimer(this);
pollTimer->setInterval(MODEL_UPDATE_DELAY);
pollTimer->start();
connect(pollTimer, SIGNAL(timeout()), this, SLOT(updateTimer()));
subscribeToCoreSignals();
}
ClientModel::~ClientModel()
{
unsubscribeFromCoreSignals();
}
int ClientModel::getNumConnections() const
{
return vNodes.size();
}
int ClientModel::getNumBlocks() const
{
return nBestHeight;
}
int ClientModel::getNumBlocksAtStartup()
{
if (numBlocksAtStartup == -1) numBlocksAtStartup = getNumBlocks();
return numBlocksAtStartup;
}
QDateTime ClientModel::getLastBlockDate() const
{
return QDateTime::fromTime_t(pindexBest->GetBlockTime());
}
void ClientModel::updateTimer()
{
// Some quantities (such as number of blocks) change so fast that we don't want to be notified for each change.
// Periodically check and update with a timer.
int newNumBlocks = getNumBlocks();
int newNumBlocksOfPeers = getNumBlocksOfPeers();
if(cachedNumBlocks != newNumBlocks || cachedNumBlocksOfPeers != newNumBlocksOfPeers)
{
cachedNumBlocks = newNumBlocks;
cachedNumBlocksOfPeers = newNumBlocksOfPeers;
// ensure we return the maximum of newNumBlocksOfPeers and newNumBlocks to not create weird displays in the GUI
emit numBlocksChanged(newNumBlocks, std::max(newNumBlocksOfPeers, newNumBlocks));
}
}
void ClientModel::updateNumConnections(int numConnections)
{
emit numConnectionsChanged(numConnections);
}
void ClientModel::updateAlert(const QString &hash, int status)
{
// Show error message notification for new alert
if(status == CT_NEW)
{
uint256 hash_256;
hash_256.SetHex(hash.toStdString());
CAlert alert = CAlert::getAlertByHash(hash_256);
if(!alert.IsNull())
{
emit message(tr("Network Alert"), QString::fromStdString(alert.strStatusBar), CClientUIInterface::ICON_ERROR);
}
}
emit alertsChanged(getStatusBarWarnings());
}
bool ClientModel::isTestNet() const
{
return fTestNet;
}
bool ClientModel::inInitialBlockDownload() const
{
return IsInitialBlockDownload();
}
enum BlockSource ClientModel::getBlockSource() const
{
if (fReindex)
return BLOCK_SOURCE_REINDEX;
if (fImporting)
return BLOCK_SOURCE_DISK;
return BLOCK_SOURCE_NETWORK;
}
int ClientModel::getNumBlocksOfPeers() const
{
return GetNumBlocksOfPeers();
}
QString ClientModel::getStatusBarWarnings() const
{
return QString::fromStdString(GetWarnings("statusbar"));
}
OptionsModel *ClientModel::getOptionsModel()
{
return optionsModel;
}
QString ClientModel::formatFullVersion() const
{
return QString::fromStdString(FormatFullVersion());
}
QString ClientModel::formatBuildDate() const
{
return QString::fromStdString(CLIENT_DATE);
}
bool ClientModel::isReleaseVersion() const
{
return CLIENT_VERSION_IS_RELEASE;
}
QString ClientModel::clientName() const
{
return QString::fromStdString(CLIENT_NAME);
}
QString ClientModel::formatClientStartupTime() const
{
return QDateTime::fromTime_t(nClientStartupTime).toString();
}
// Handlers for core signals
static void NotifyBlocksChanged(ClientModel *clientmodel)
{
// This notification is too frequent. Don't trigger a signal.
// Don't remove it, though, as it might be useful later.
}
static void NotifyNumConnectionsChanged(ClientModel *clientmodel, int newNumConnections)
{
// Too noisy: OutputDebugStringF("NotifyNumConnectionsChanged %i\n", newNumConnections);
QMetaObject::invokeMethod(clientmodel, "updateNumConnections", Qt::QueuedConnection,
Q_ARG(int, newNumConnections));
}
static void NotifyAlertChanged(ClientModel *clientmodel, const uint256 &hash, ChangeType status)
{
OutputDebugStringF("NotifyAlertChanged %s status=%i\n", hash.GetHex().c_str(), status);
QMetaObject::invokeMethod(clientmodel, "updateAlert", Qt::QueuedConnection,
Q_ARG(QString, QString::fromStdString(hash.GetHex())),
Q_ARG(int, status));
}
void ClientModel::subscribeToCoreSignals()
{
// Connect signals to client
uiInterface.NotifyBlocksChanged.connect(boost::bind(NotifyBlocksChanged, this));
uiInterface.NotifyNumConnectionsChanged.connect(boost::bind(NotifyNumConnectionsChanged, this, _1));
uiInterface.NotifyAlertChanged.connect(boost::bind(NotifyAlertChanged, this, _1, _2));
}
void ClientModel::unsubscribeFromCoreSignals()
{
// Disconnect signals from client
uiInterface.NotifyBlocksChanged.disconnect(boost::bind(NotifyBlocksChanged, this));
uiInterface.NotifyNumConnectionsChanged.disconnect(boost::bind(NotifyNumConnectionsChanged, this, _1));
uiInterface.NotifyAlertChanged.disconnect(boost::bind(NotifyAlertChanged, this, _1, _2));
}
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