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Fine-grained UI updates

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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.
This commit is contained in:
Wladimir J. van der Laan
2012-05-05 16:07:14 +02:00
parent 563f3efda3
commit fe4a655042
24 changed files with 440 additions and 281 deletions
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146
src/qt/transactiontablemodel.cpp
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@@ -9,6 +9,7 @@
#include "bitcoinunits.h"
#include "wallet.h"
#include "ui_interface.h"
#include <QLocale>
#include <QList>
@@ -66,15 +67,14 @@ public:
*/
void refreshWallet()
{
#ifdef WALLET_UPDATE_DEBUG
qDebug() << "refreshWallet";
#endif
OutputDebugStringF("refreshWallet\n");
cachedWallet.clear();
{
LOCK(wallet->cs_wallet);
for(std::map<uint256, CWalletTx>::iterator it = wallet->mapWallet.begin(); it != wallet->mapWallet.end(); ++it)
{
cachedWallet.append(TransactionRecord::decomposeTransaction(wallet, it->second));
if(TransactionRecord::showTransaction(it->second))
cachedWallet.append(TransactionRecord::decomposeTransaction(wallet, it->second));
}
}
}
@@ -82,49 +82,55 @@ public:
/* Update our model of the wallet incrementally, to synchronize our model of the wallet
with that of the core.
Call with list of hashes of transactions that were added, removed or changed.
Call with transaction that was added, removed or changed.
*/
void updateWallet(const QList<uint256> &updated)
void updateWallet(const uint256 &hash, int status)
{
// Walk through updated transactions, update model as needed.
#ifdef WALLET_UPDATE_DEBUG
qDebug() << "updateWallet";
#endif
// Sort update list, and iterate through it in reverse, so that model updates
// can be emitted from end to beginning (so that earlier updates will not influence
// the indices of latter ones).
QList<uint256> updated_sorted = updated;
qSort(updated_sorted);
OutputDebugStringF("updateWallet %s %i\n", hash.ToString().c_str(), status);
{
LOCK(wallet->cs_wallet);
for(int update_idx = updated_sorted.size()-1; update_idx >= 0; --update_idx)
// Find transaction in wallet
std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(hash);
bool inWallet = mi != wallet->mapWallet.end();
// Find bounds of this transaction in model
QList<TransactionRecord>::iterator lower = qLowerBound(
cachedWallet.begin(), cachedWallet.end(), hash, TxLessThan());
QList<TransactionRecord>::iterator upper = qUpperBound(
cachedWallet.begin(), cachedWallet.end(), hash, TxLessThan());
int lowerIndex = (lower - cachedWallet.begin());
int upperIndex = (upper - cachedWallet.begin());
bool inModel = (lower != upper);
// Determine whether to show transaction or not
bool showTransaction = (inWallet && TransactionRecord::showTransaction(mi->second));
if(status == CT_UPDATED)
{
const uint256 &hash = updated_sorted.at(update_idx);
// Find transaction in wallet
std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(hash);
bool inWallet = mi != wallet->mapWallet.end();
// Find bounds of this transaction in model
QList<TransactionRecord>::iterator lower = qLowerBound(
cachedWallet.begin(), cachedWallet.end(), hash, TxLessThan());
QList<TransactionRecord>::iterator upper = qUpperBound(
cachedWallet.begin(), cachedWallet.end(), hash, TxLessThan());
int lowerIndex = (lower - cachedWallet.begin());
int upperIndex = (upper - cachedWallet.begin());
if(showTransaction && !inModel)
status = CT_NEW; /* Not in model, but want to show, treat as new */
if(!showTransaction && inModel)
status = CT_DELETED; /* In model, but want to hide, treat as deleted */
}
// Determine if transaction is in model already
bool inModel = false;
if(lower != upper)
OutputDebugStringF(" inWallet=%i inModel=%i Index=%i-%i showTransaction=%i derivedStatus=%i\n",
inWallet, inModel, lowerIndex, upperIndex, showTransaction, status);
switch(status)
{
case CT_NEW:
if(inModel)
{
inModel = true;
OutputDebugStringF("Warning: updateWallet: Got CT_NEW, but transaction is already in model\n");
break;
}
#ifdef WALLET_UPDATE_DEBUG
qDebug() << " " << QString::fromStdString(hash.ToString()) << inWallet << " " << inModel
<< lowerIndex << "-" << upperIndex;
#endif
if(inWallet && !inModel)
if(!inWallet)
{
OutputDebugStringF("Warning: updateWallet: Got CT_NEW, but transaction is not in wallet\n");
break;
}
if(showTransaction)
{
// Added -- insert at the right position
QList<TransactionRecord> toInsert =
@@ -141,17 +147,22 @@ public:
parent->endInsertRows();
}
}
else if(!inWallet && inModel)
break;
case CT_DELETED:
if(!inModel)
{
// Removed -- remove entire transaction from table
parent->beginRemoveRows(QModelIndex(), lowerIndex, upperIndex-1);
cachedWallet.erase(lower, upper);
parent->endRemoveRows();
}
else if(inWallet && inModel)
{
// Updated -- nothing to do, status update will take care of this
OutputDebugStringF("Warning: updateWallet: Got CT_DELETED, but transaction is not in model\n");
break;
}
// Removed -- remove entire transaction from table
parent->beginRemoveRows(QModelIndex(), lowerIndex, upperIndex-1);
cachedWallet.erase(lower, upper);
parent->endRemoveRows();
break;
case CT_UPDATED:
// Miscellaneous updates -- nothing to do, status update will take care of this, and is only computed for
// visible transactions.
break;
}
}
}
@@ -209,14 +220,15 @@ TransactionTableModel::TransactionTableModel(CWallet* wallet, WalletModel *paren
QAbstractTableModel(parent),
wallet(wallet),
walletModel(parent),
priv(new TransactionTablePriv(wallet, this))
priv(new TransactionTablePriv(wallet, this)),
cachedNumBlocks(0)
{
columns << QString() << tr("Date") << tr("Type") << tr("Address") << tr("Amount");
priv->refreshWallet();
QTimer *timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(update()));
connect(timer, SIGNAL(timeout()), this, SLOT(updateConfirmations()));
timer->start(MODEL_UPDATE_DELAY);
}
@@ -225,29 +237,23 @@ TransactionTableModel::~TransactionTableModel()
delete priv;
}
void TransactionTableModel::update()
void TransactionTableModel::updateTransaction(const QString &hash, int status)
{
QList<uint256> updated;
uint256 updated;
updated.SetHex(hash.toStdString());
// Check if there are changes to wallet map
priv->updateWallet(updated, status);
}
void TransactionTableModel::updateConfirmations()
{
if(nBestHeight != cachedNumBlocks)
{
TRY_LOCK(wallet->cs_wallet, lockWallet);
if (lockWallet && !wallet->vWalletUpdated.empty())
{
BOOST_FOREACH(uint256 hash, wallet->vWalletUpdated)
{
updated.append(hash);
}
wallet->vWalletUpdated.clear();
}
}
if(!updated.empty())
{
priv->updateWallet(updated);
// Status (number of confirmations) and (possibly) description
// columns changed for all rows.
cachedNumBlocks = nBestHeight;
// Blocks came in since last poll.
// Invalidate status (number of confirmations) and (possibly) description
// for all rows. Qt is smart enough to only actually request the data for the
// visible rows.
emit dataChanged(index(0, Status), index(priv->size()-1, Status));
emit dataChanged(index(0, ToAddress), index(priv->size()-1, ToAddress));
}