Added InfoPage implementation

src/qt/infopage.cpp

@@ -0,0 +1,109 @@
+#include "infopage.h"
+#include "ui_infopage.h"
+#include "walletmodel.h"
+#include "clientmodel.h"
+#include "bitcoinrpc.h"
+#include <QDateTime>
+#include "bitcoinunits.h"
+#include "main.h"
+
+using namespace std;
+
+InfoPage::InfoPage(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::InfoPage)
+{
+    ui->setupUi(this);
+    ui->casinoInfoBox->setVisible(false);
+    ui->newsItemsBox->setVisible(false);
+}
+
+void InfoPage::setWalletModel(WalletModel *model)
+{
+    this->walletModel = model;
+    if(model)
+    {
+        // subscribe to transaction changes
+        connect(model, SIGNAL(numTransactionsChanged(int)), this, SLOT(setNumTransactions(int)));
+        setNumTransactions(model->getNumTransactions());
+    }
+}
+
+void InfoPage::setClientModel(ClientModel *model)
+{
+    this->clientModel = model;
+    if(model)
+    {
+        // Subscribe to information, replies, messages, errors
+        connect(model, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
+        connect(model, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
+        setNumConnections(model->getNumConnections());
+        setNumBlocks(model->getNumBlocks(), model->getNumBlocksOfPeers());
+    }
+}
+
+void InfoPage::setNumConnections(int count)
+{
+    ui->txtConnections->setText(QString::number(count));
+}
+
+void InfoPage::setNumBlocks(int count, int countOfPeers)
+{
+    ui->txtBlockHeight->setText(QString::number(count));
+    // block height changed so update all possible values as well
+    if(clientModel)
+    {
+        ui->txtLastBlockTime->setText(clientModel->getLastBlockDate().toString());
+        ui->txtDifficulty->setText(QString::number(GetDifficulty()));
+        ui->txtCoinSupply->setText(BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, GetTotalCoinSupply(count, false)));
+        double megaHash = GetNetworkHashRate(-1, count) / 1000000;
+        ui->txtHashRate->setText(QString::number(megaHash,'f',0).append(" MHash/sec"));
+    }
+}
+
+void InfoPage::setNumTransactions(int count)
+{
+    ui->txtTransactionCount->setText(QString::number(count));
+}
+
+double InfoPage::GetNetworkHashRate(int lookup, int height) {
+    CBlockIndex *pb = pindexBest;
+
+    if (height >= 0 && height < nBestHeight)
+        pb = FindBlockByHeight(height);
+
+    if (pb == NULL || !pb->nHeight)
+        return 0;
+
+    // If lookup is -1, then use blocks since last difficulty change.
+    if (lookup <= 0)
+        lookup = pb->nHeight % 2016 + 1;
+
+    // If lookup is larger than chain, then set it to chain length.
+    if (lookup > pb->nHeight)
+        lookup = pb->nHeight;
+
+    CBlockIndex *pb0 = pb;
+    int64 minTime = pb0->GetBlockTime();
+    int64 maxTime = minTime;
+    for (int i = 0; i < lookup; i++) {
+        pb0 = pb0->pprev;
+        int64 time = pb0->GetBlockTime();
+        minTime = std::min(time, minTime);
+        maxTime = std::max(time, maxTime);
+    }
+
+    // In case there's a situation where minTime == maxTime, we don't want a divide by zero exception.
+    if (minTime == maxTime)
+        return 0;
+
+    uint256 workDiff = pb->nChainWork - pb0->nChainWork;
+    int64 timeDiff = maxTime - minTime;
+    double workDiffDouble = workDiff.getdouble();
+    return workDiffDouble / timeDiff;
+}
+
+InfoPage::~InfoPage()
+{
+    delete ui;
+}