/*
* Loads symbol data from DB. Loaded data is stored in
* the global Bar* g_symbol
*
* @return true if new data was loaded
*
* TODO: fix compare between old and new data and
* only return true if new data was loaded
*/
bool PlotWidget::loadSymbolData() {
Bars sym = _toolbarWidget->currentSymbol();
//Don't load new data unless symbol or barlength changed
if(!(g_symbol->symbol() != sym.symbol() || g_symbol->barLength() != _toolbarWidget->length()))
return false;
if (! _plots.size())
return false;
// load fresh symbol data
if (! _toolbarWidget->count())
return false;
IDBPlugin *qplug = dynamic_cast<IDBPlugin *>(((PluginFactory*)PluginFactory::getPluginFactory())->loadPlugin(QString("Database")));
if (! qplug)
return false;
g_symbol->clear();
g_symbol->setSymbol(sym.symbol());
g_symbol->setBarLength(_toolbarWidget->length());
g_symbol->setPlotRange(_controlWidget->getRange());
if (! qplug->getBars(g_symbol))
return false;
return true;
}
void
PlotWidget::refresh ()
{
if (! _plots.size())
return;
// load fresh symbol data
if (! _cw->count())
return;
PluginFactory fac;
Plugin *qplug = fac.load(QString("DBSymbol"));
if (! qplug)
return;
DataBase db(g_session);
saveMarkers(db);
Bars sym = _cw->currentSymbol();
g_symbol->clear();
g_symbol->setSymbol(sym.symbol());
g_symbol->setLength(_cw->length());
g_symbol->setRange(_cw->range());
PluginData pd;
pd.command = QString("getBars");
pd.bars = g_symbol;
if (! qplug->command(&pd))
return;
else
emit signalClear();
// refresh dates
emit signalSetDates();
QHashIterator<QString, Plot *> it(_plots);
while (it.hasNext())
{
it.next();
Plot *plot = it.value();
Entity *e = _settings.value(it.key());
if (! e)
continue;
QVariant *plugin = e->get(QString("plugin"));
if (! plugin)
continue;
Plugin *iplug = fac.load(plugin->toString());
if (! iplug)
continue;
PluginData tpd;
tpd.command = QString("runIndicator");
tpd.settings = e;
if (! iplug->command(&tpd))
continue;
for (int tpos = 0; tpos < tpd.curves.size(); tpos++)
plot->setCurve(tpd.curves.at(tpos));
for (int tpos = 0; tpos < tpd.markers.size(); tpos++)
plot->setMarker(tpd.markers.at(tpos));
}
loadMarkers(db);
emit signalDraw();
setScrollBarSize();
QStringList tl;
tl << "OTA" << "-" << sym.symbol() << "(" + sym.name() + ")" << _cw->lengthText() << _cw->rangeText();
emit signalTitle(tl.join(" "));
}
void PlotWidget::refresh ()
{
qDebug() << "PlotWidget::refresh ()";
DataBase db(g_session);
bool newData = loadSymbolData();
//Save all markers before clearing the plot
saveMarkers(db);
emit signalClear();
// refresh dates
emit signalSetDates();
Bars sym = _toolbarWidget->currentSymbol();
//Plot all Indicators
QHashIterator<QString, Plot *> it(_plots);
while (it.hasNext())
{
it.next();
Plot *plot = it.value();
Entity *pEntity = _settings.value(it.key());
if (! pEntity)
continue;
QVariant *plugin = pEntity->get(QString("plugin"));
if (! plugin)
continue;
IIndicatorPlugin *pPlugin = dynamic_cast<IIndicatorPlugin*>(((PluginFactory*)PluginFactory::getPluginFactory())->loadPlugin(plugin->toString()));
if (! pPlugin)
continue;
QList<Curve*> curves = pPlugin->runIndicator(pEntity);
if(newData){
pPlugin->newDataLoaded();
}
for (int tpos = 0; tpos < curves.size(); tpos++)
plot->setCurve(curves.at(tpos));
// for (int tpos = 0; tpos < tpd.markers.size(); tpos++)
// plot->setMarker(tpd.markers.at(tpos));
}
//relaod all markers after plot have been updated
loadMarkers(db);
updateScrollBars();
emit signalDraw();
setPanScrollBarSize();
QStringList tl;
tl << "QtTrader" << "-" << sym.symbol() << "(" + sym.name() + ")" << _toolbarWidget->lengthText();
emit signalTitle(tl.join(" "));
}