fe4a655042
Gets rid of `MainFrameRepaint` in favor of specific update functions that tell the UI exactly what changed. This improves the efficiency of various handlers. Also fixes problems with mined transactions not showing up until restart. The following notifications were added: - `NotifyBlocksChanged`: Block chain changed - `NotifyKeyStoreStatusChanged`: Wallet status (encrypted, locked) changed. - `NotifyAddressBookChanged`: Address book entry changed. - `NotifyTransactionChanged`: Wallet transaction added, removed or updated. - `NotifyNumConnectionsChanged`: Number of connections changed. - `NotifyAlertChanged`: New, updated or cancelled alert. As this finally makes it possible for the UI to know when a new alert arrived, it can be shown as OS notification. These notifications could also be useful for RPC clients. However, currently, they are ignored in bitcoind (in noui.cpp). Also brings back polling with timer for numBlocks in ClientModel. This value updates so frequently during initial download that the number of signals clogs the UI thread and causes heavy CPU usage. And after initial block download, the value changes so rarely that a delay of half a second until the UI updates is unnoticable.
130 lines
3.1 KiB
C++
130 lines
3.1 KiB
C++
#include "clientmodel.h"
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#include "guiconstants.h"
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#include "optionsmodel.h"
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#include "addresstablemodel.h"
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#include "transactiontablemodel.h"
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#include "main.h"
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#include "ui_interface.h"
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#include <QDateTime>
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#include <QTimer>
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static const int64 nClientStartupTime = GetTime();
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ClientModel::ClientModel(OptionsModel *optionsModel, QObject *parent) :
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QObject(parent), optionsModel(optionsModel),
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cachedNumBlocks(0), cachedNumBlocksOfPeers(0), pollTimer(0)
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{
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numBlocksAtStartup = -1;
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pollTimer = new QTimer();
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pollTimer->setInterval(MODEL_UPDATE_DELAY);
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pollTimer->start();
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connect(pollTimer, SIGNAL(timeout()), this, SLOT(updateTimer()));
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}
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int ClientModel::getNumConnections() const
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{
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return vNodes.size();
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}
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int ClientModel::getNumBlocks() const
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{
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return nBestHeight;
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}
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int ClientModel::getNumBlocksAtStartup()
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{
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if (numBlocksAtStartup == -1) numBlocksAtStartup = getNumBlocks();
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return numBlocksAtStartup;
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}
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QDateTime ClientModel::getLastBlockDate() const
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{
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return QDateTime::fromTime_t(pindexBest->GetBlockTime());
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}
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void ClientModel::updateTimer()
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{
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// Some quantities (such as number of blocks) change so fast that we don't want to be notified for each change.
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// Periodically check and update with a timer.
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int newNumBlocks = getNumBlocks();
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int newNumBlocksOfPeers = getNumBlocksOfPeers();
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if(cachedNumBlocks != newNumBlocks || cachedNumBlocksOfPeers != newNumBlocksOfPeers)
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emit numBlocksChanged(newNumBlocks, newNumBlocksOfPeers);
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cachedNumBlocks = newNumBlocks;
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cachedNumBlocksOfPeers = newNumBlocksOfPeers;
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}
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void ClientModel::updateNumConnections(int numConnections)
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{
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emit numConnectionsChanged(numConnections);
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}
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void ClientModel::updateAlert(const QString &hash, int status)
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{
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// Show error message notification for new alert
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if(status == CT_NEW)
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{
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uint256 hash_256;
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hash_256.SetHex(hash.toStdString());
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CAlert alert = CAlert::getAlertByHash(hash_256);
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if(!alert.IsNull())
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{
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emit error(tr("Network Alert"), QString::fromStdString(alert.strStatusBar), false);
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}
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}
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// Emit a numBlocksChanged when the status message changes,
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// so that the view recomputes and updates the status bar.
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emit numBlocksChanged(getNumBlocks(), getNumBlocksOfPeers());
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}
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bool ClientModel::isTestNet() const
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{
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return fTestNet;
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}
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bool ClientModel::inInitialBlockDownload() const
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{
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return IsInitialBlockDownload();
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}
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int ClientModel::getNumBlocksOfPeers() const
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{
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return GetNumBlocksOfPeers();
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}
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QString ClientModel::getStatusBarWarnings() const
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{
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return QString::fromStdString(GetWarnings("statusbar"));
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}
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OptionsModel *ClientModel::getOptionsModel()
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{
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return optionsModel;
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}
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QString ClientModel::formatFullVersion() const
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{
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return QString::fromStdString(FormatFullVersion());
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}
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QString ClientModel::formatBuildDate() const
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{
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return QString::fromStdString(CLIENT_DATE);
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}
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QString ClientModel::clientName() const
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{
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return QString::fromStdString(CLIENT_NAME);
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}
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QDateTime ClientModel::formatClientStartupTime() const
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{
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return QDateTime::fromTime_t(nClientStartupTime);
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}
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