ScatterPlotExample::ScatterPlotExample(WContainerWidget *parent):
WContainerWidget(parent)
{
new WText(WString::tr("scatter plot 2"), this);
WStandardItemModel *model = new WStandardItemModel(40, 2, this);
model->setItemPrototype(new NumericItem());
model->setHeaderData(0, WString("X"));
model->setHeaderData(1, WString("Y = sin(X)"));
for (unsigned i = 0; i < 40; ++i) {
double x = (static_cast<double>(i) - 20) / 4;
model->setData(i, 0, x);
model->setData(i, 1, sin(x));
}
/*
* Create the scatter plot.
*/
WCartesianChart *chart = new WCartesianChart(this);
chart->setModel(model); // set the model
chart->setXSeriesColumn(0); // set the column that holds the X data
chart->setLegendEnabled(true); // enable the legend
chart->setType(ScatterPlot); // set type to ScatterPlot
// Typically, for mathematical functions, you want the axes to cross
// at the 0 mark:
chart->axis(XAxis).setLocation(ZeroValue);
chart->axis(YAxis).setLocation(ZeroValue);
// Automatically layout chart (space for axes, legend, ...)
chart->setAutoLayoutEnabled();
// Add the curves
WDataSeries s(1, CurveSeries);
s.setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
chart->addSeries(s);
chart->resize(800, 300); // WPaintedWidget must be given explicit size
chart->setMargin(10, Top | Bottom); // add margin vertically
chart->setMargin(WLength::Auto, Left | Right); // center horizontally
ChartConfig *config = new ChartConfig(chart, this);
config->setValueFill(ZeroValueFill);
}
WWidget *SysMon::Layout()
{
Div *container = new Div("SysMon", "container");
std::string htmlData;
std::string file;
if (m_cgiEnv->GetCurrentLanguage() == CgiEnv::Language::Fa) {
file = "../templates/system-monitor-fa.wtml";
} else {
file = "../templates/system-monitor.wtml";
}
/// Read the template, otherwise return
if (!CoreLib::FileSystem::Read(file, htmlData)) {
return container;
}
/// Host Info
m_pimpl->HostInfoDiv = new Div(container, "HostInfoDiv");
/// CPU Model
m_pimpl->CpuUsageModel = new WStandardItemModel(60, 7, this);
m_pimpl->CpuUsageModel->setHeaderData(0, tr("system-monitor-cpu-percents-user"));
m_pimpl->CpuUsageModel->setHeaderData(1, tr("system-monitor-cpu-percents-kernel"));
m_pimpl->CpuUsageModel->setHeaderData(2, tr("system-monitor-cpu-percents-idle"));
m_pimpl->CpuUsageModel->setHeaderData(3, tr("system-monitor-cpu-percents-iowait"));
m_pimpl->CpuUsageModel->setHeaderData(4, tr("system-monitor-cpu-percents-swap"));
m_pimpl->CpuUsageModel->setHeaderData(5, tr("system-monitor-cpu-percents-nice"));
m_pimpl->CpuUsageModel->setHeaderData(6, WString("-"));
/// Memory Model
m_pimpl->MemoryUsageModel = new WStandardItemModel(60, 5, this);
m_pimpl->MemoryUsageModel->setHeaderData(0, tr("system-monitor-memory-stats-total"));
m_pimpl->MemoryUsageModel->setHeaderData(1, tr("system-monitor-memory-stats-free"));
m_pimpl->MemoryUsageModel->setHeaderData(2, tr("system-monitor-memory-stats-used"));
m_pimpl->MemoryUsageModel->setHeaderData(3, tr("system-monitor-memory-stats-cache"));
m_pimpl->MemoryUsageModel->setHeaderData(4, WString("-"));
/// Swap Model
m_pimpl->SwapUsageModel = new WStandardItemModel(60, 4, this);
m_pimpl->SwapUsageModel->setHeaderData(0, tr("system-monitor-swap-stats-total"));
m_pimpl->SwapUsageModel->setHeaderData(1, tr("system-monitor-swap-stats-used"));
m_pimpl->SwapUsageModel->setHeaderData(2, tr("system-monitor-swap-stats-free"));
m_pimpl->SwapUsageModel->setHeaderData(3, WString("-"));
/// Virtual Memory Model
m_pimpl->VirtualMemoryUsageModel = new WStandardItemModel(60, 4, this);
m_pimpl->VirtualMemoryUsageModel->setHeaderData(0, tr("system-monitor-virtual-memory-stats-total"));
m_pimpl->VirtualMemoryUsageModel->setHeaderData(1, tr("system-monitor-virtual-memory-stats-used"));
m_pimpl->VirtualMemoryUsageModel->setHeaderData(2, tr("system-monitor-virtual-memory-stats-free"));
m_pimpl->VirtualMemoryUsageModel->setHeaderData(3, WString("-"));
/// CPU Graph
WCartesianChart *cpuUsageChart = new WCartesianChart();
cpuUsageChart->setBackground(gray);
cpuUsageChart->setModel(m_pimpl->CpuUsageModel);
cpuUsageChart->setXSeriesColumn(m_pimpl->CpuUsageModel->columnCount() - 1);
cpuUsageChart->setLegendEnabled(true);
cpuUsageChart->setLegendLocation(LegendOutside, Right, AlignMiddle);
cpuUsageChart->setType(ScatterPlot);
cpuUsageChart->axis(XAxis).setScale(LinearScale);
cpuUsageChart->axis(YAxis).setScale(LinearScale);
cpuUsageChart->setPlotAreaPadding(120, Right);
cpuUsageChart->setPlotAreaPadding(30, Top | Bottom);
for (int i = 0; i < m_pimpl->CpuUsageModel->columnCount() - 1; ++i) {
WDataSeries s(i, CurveSeries);
s.setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
cpuUsageChart->addSeries(s);
}
cpuUsageChart->resize(600, 330);
cpuUsageChart->setMargin(10, Top | Bottom);
cpuUsageChart->setMargin(WLength::Auto, Left | Right);
/// Memory Graph
WCartesianChart *memoryUsageChart = new WCartesianChart();
memoryUsageChart->setBackground(gray);
memoryUsageChart->setModel(m_pimpl->MemoryUsageModel);
memoryUsageChart->setXSeriesColumn(m_pimpl->MemoryUsageModel->columnCount() - 1);
memoryUsageChart->setLegendEnabled(true);
memoryUsageChart->setLegendLocation(LegendOutside, Right, AlignMiddle);
memoryUsageChart->setType(ScatterPlot);
memoryUsageChart->axis(XAxis).setScale(LinearScale);
memoryUsageChart->axis(YAxis).setScale(LinearScale);
memoryUsageChart->setPlotAreaPadding(220, Right);
memoryUsageChart->setPlotAreaPadding(30, Top | Bottom);
for (int i = 0; i < m_pimpl->MemoryUsageModel->columnCount() - 1; ++i) {
WDataSeries s(i, CurveSeries);
s.setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
memoryUsageChart->addSeries(s);
}
memoryUsageChart->resize(600, 330);
memoryUsageChart->setMargin(10, Top | Bottom);
memoryUsageChart->setMargin(WLength::Auto, Left | Right);
/// Swap Graph
WCartesianChart *swapUsageChart = new WCartesianChart();
swapUsageChart->setBackground(gray);
swapUsageChart->setModel(m_pimpl->SwapUsageModel);
swapUsageChart->setXSeriesColumn(m_pimpl->SwapUsageModel->columnCount() - 1);
swapUsageChart->setLegendEnabled(true);
swapUsageChart->setLegendLocation(LegendOutside, Right, AlignMiddle);
swapUsageChart->setType(ScatterPlot);
swapUsageChart->axis(XAxis).setScale(LinearScale);
swapUsageChart->axis(YAxis).setScale(LinearScale);
swapUsageChart->setPlotAreaPadding(220, Right);
swapUsageChart->setPlotAreaPadding(30, Top | Bottom);
for (int i = 0; i < m_pimpl->SwapUsageModel->columnCount() - 1; ++i) {
WDataSeries s(i, CurveSeries);
s.setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
swapUsageChart->addSeries(s);
}
swapUsageChart->resize(600, 330);
swapUsageChart->setMargin(10, Top | Bottom);
swapUsageChart->setMargin(WLength::Auto, Left | Right);
/// Virtual Memory Graph
WCartesianChart *virtualMemoryUsageChart = new WCartesianChart();
virtualMemoryUsageChart->setBackground(gray);
virtualMemoryUsageChart->setModel(m_pimpl->VirtualMemoryUsageModel);
virtualMemoryUsageChart->setXSeriesColumn(m_pimpl->VirtualMemoryUsageModel->columnCount() - 1);
virtualMemoryUsageChart->setLegendEnabled(true);
virtualMemoryUsageChart->setLegendLocation(LegendOutside, Right, AlignMiddle);
virtualMemoryUsageChart->setType(ScatterPlot);
virtualMemoryUsageChart->axis(XAxis).setScale(LinearScale);
virtualMemoryUsageChart->axis(YAxis).setScale(LinearScale);
virtualMemoryUsageChart->setPlotAreaPadding(220, Right);
virtualMemoryUsageChart->setPlotAreaPadding(30, Top | Bottom);
for (int i = 0; i < m_pimpl->VirtualMemoryUsageModel->columnCount() - 1; ++i) {
WDataSeries s(i, CurveSeries);
s.setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
virtualMemoryUsageChart->addSeries(s);
}
virtualMemoryUsageChart->resize(600, 330);
virtualMemoryUsageChart->setMargin(10, Top | Bottom);
virtualMemoryUsageChart->setMargin(WLength::Auto, Left | Right);
/// Disk Info
m_pimpl->DiskInfoDiv = new Div(container, "DiskInfoDiv");
/// Net Info
m_pimpl->NetworkInfoDiv = new Div(container, "NetworkInfoDiv");
/// Fill the template
WTemplate *tmpl = new WTemplate(container);
tmpl->setTemplateText(WString(htmlData), TextFormat::XHTMLUnsafeText);
tmpl->bindWidget("host-info", m_pimpl->HostInfoDiv);
tmpl->bindWidget("cpu-info", cpuUsageChart);
tmpl->bindWidget("memory-info", memoryUsageChart);
tmpl->bindWidget("swap-info", swapUsageChart);
tmpl->bindWidget("virtual-memory-info", virtualMemoryUsageChart);
tmpl->bindWidget("disk-info", m_pimpl->DiskInfoDiv);
tmpl->bindWidget("network-info", m_pimpl->NetworkInfoDiv);
tmpl->bindWidget("host-info-title",
new WText(WString("<h4>{1}</h4>").arg(tr("system-monitor-host-info"))));
tmpl->bindWidget("cpu-info-title",
new WText(WString("<h4>{1}</h4>").arg(tr("system-monitor-cpu-percents"))));
tmpl->bindWidget("memory-info-title",
new WText(WString("<h4>{1}</h4>").arg(tr("system-monitor-memory-stats"))));
tmpl->bindWidget("swap-info-title",
new WText(WString("<h4>{1}</h4>").arg(tr("system-monitor-swap-stats"))));
tmpl->bindWidget("virtual-memory-info-title",
new WText(WString("<h4>{1}</h4>").arg(tr("system-monitor-virtual-memory-stats"))));
tmpl->bindWidget("disk-info-title",
new WText(WString("<h4>{1}</h4>").arg(tr("system-monitor-disk-io-stats"))));
tmpl->bindWidget("network-info-title",
new WText(WString("<h4>{1}</h4>").arg(tr("system-monitor-network-io-stats"))));
return container;
}
TimeSeriesExample::TimeSeriesExample(Wt::WContainerWidget *parent):
WContainerWidget(parent)
{
new WText(WString::tr("scatter plot"), this);
WAbstractItemModel *model = readCsvFile(
WApplication::appRoot() + "timeseries.csv", this);
if (!model)
return;
/*
* Parses the first column as dates, to be able to use a date scale
*/
for (int i = 0; i < model->rowCount(); ++i) {
WString s = asString(model->data(i, 0));
WDate d = WDate::fromString(s, "dd/MM/yy");
model->setData(i, 0, d);
}
// Show a view that allows editing of the model.
WContainerWidget *w = new WContainerWidget(this);
WTableView *table = new WTableView(w);
table->setMargin(10, Top | Bottom);
table->setMargin(WLength::Auto, Left | Right);
table->setModel(model);
table->setSortingEnabled(false); // Does not make much sense for time series
table->setColumnResizeEnabled(true);
table->setSelectionMode(NoSelection);
table->setAlternatingRowColors(true);
table->setColumnAlignment(0, AlignCenter);
table->setHeaderAlignment(0, AlignCenter);
table->setRowHeight(22);
// Editing does not really work without Ajax, it would require an
// additional button somewhere to confirm the edited value.
if (WApplication::instance()->environment().ajax()) {
table->resize(800, 20 + 5*22);
table->setEditTriggers(WAbstractItemView::SingleClicked);
} else {
table->resize(800, 20 + 5*22 + 25);
table->setEditTriggers(WAbstractItemView::NoEditTrigger);
}
WItemDelegate *delegate = new WItemDelegate(this);
delegate->setTextFormat("%.1f");
table->setItemDelegate(delegate);
table->setItemDelegateForColumn(0, new WItemDelegate(this));
table->setColumnWidth(0, 80);
for (int i = 1; i < model->columnCount(); ++i)
table->setColumnWidth(i, 90);
/*
* Create the scatter plot.
*/
WCartesianChart *chart = new WCartesianChart(this);
//chart->setPreferredMethod(WPaintedWidget::PngImage);
//chart->setBackground(gray);
chart->setModel(model); // set the model
chart->setXSeriesColumn(0); // set the column that holds the X data
chart->setLegendEnabled(true); // enable the legend
chart->setType(ScatterPlot); // set type to ScatterPlot
chart->axis(XAxis).setScale(DateScale); // set scale of X axis to DateScale
// Automatically layout chart (space for axes, legend, ...)
chart->setAutoLayoutEnabled();
/*
* Add first two columns as line series
*/
for (int i = 1; i < 3; ++i) {
WDataSeries s(i, LineSeries);
s.setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
chart->addSeries(s);
}
chart->resize(800, 400); // WPaintedWidget must be given explicit size
chart->setMargin(10, Top | Bottom); // add margin vertically
chart->setMargin(WLength::Auto, Left | Right); // center horizontally
new ChartConfig(chart, this);
}