##// END OF EJS Templates
Move Common MIME types constants in a Definition file in core module.
Move Common MIME types constants in a Definition file in core module.

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VisualizationGraphWidget.cpp
385 lines | 13.4 KiB | text/x-c | CppLexer
/ gui / src / Visualization / VisualizationGraphWidget.cpp
#include "Visualization/VisualizationGraphWidget.h"
#include "Visualization/IVisualizationWidgetVisitor.h"
#include "Visualization/VisualizationDefs.h"
#include "Visualization/VisualizationGraphHelper.h"
#include "Visualization/VisualizationGraphRenderingDelegate.h"
#include "Visualization/VisualizationZoneWidget.h"
#include "ui_VisualizationGraphWidget.h"
#include <Common/MimeTypesDef.h>
#include <Data/ArrayData.h>
#include <Data/IDataSeries.h>
#include <DragDropHelper.h>
#include <Settings/SqpSettingsDefs.h>
#include <SqpApplication.h>
#include <Variable/Variable.h>
#include <Variable/VariableController.h>
#include <unordered_map>
Q_LOGGING_CATEGORY(LOG_VisualizationGraphWidget, "VisualizationGraphWidget")
namespace {
/// Key pressed to enable zoom on horizontal axis
const auto HORIZONTAL_ZOOM_MODIFIER = Qt::NoModifier;
/// Key pressed to enable zoom on vertical axis
const auto VERTICAL_ZOOM_MODIFIER = Qt::ControlModifier;
} // namespace
struct VisualizationGraphWidget::VisualizationGraphWidgetPrivate {
explicit VisualizationGraphWidgetPrivate(const QString &name)
: m_Name{name},
m_DoAcquisition{true},
m_IsCalibration{false},
m_RenderingDelegate{nullptr}
{
}
QString m_Name;
// 1 variable -> n qcpplot
std::map<std::shared_ptr<Variable>, PlottablesMap> m_VariableToPlotMultiMap;
bool m_DoAcquisition;
bool m_IsCalibration;
QCPItemTracer *m_TextTracer;
/// Delegate used to attach rendering features to the plot
std::unique_ptr<VisualizationGraphRenderingDelegate> m_RenderingDelegate;
};
VisualizationGraphWidget::VisualizationGraphWidget(const QString &name, QWidget *parent)
: VisualizationDragWidget{parent},
ui{new Ui::VisualizationGraphWidget},
impl{spimpl::make_unique_impl<VisualizationGraphWidgetPrivate>(name)}
{
ui->setupUi(this);
// 'Close' options : widget is deleted when closed
setAttribute(Qt::WA_DeleteOnClose);
// Set qcpplot properties :
// - Drag (on x-axis) and zoom are enabled
// - Mouse wheel on qcpplot is intercepted to determine the zoom orientation
ui->widget->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom | QCP::iSelectItems);
ui->widget->axisRect()->setRangeDrag(Qt::Horizontal);
// The delegate must be initialized after the ui as it uses the plot
impl->m_RenderingDelegate = std::make_unique<VisualizationGraphRenderingDelegate>(*this);
connect(ui->widget, &QCustomPlot::mousePress, this, &VisualizationGraphWidget::onMousePress);
connect(ui->widget, &QCustomPlot::mouseRelease, this,
&VisualizationGraphWidget::onMouseRelease);
connect(ui->widget, &QCustomPlot::mouseMove, this, &VisualizationGraphWidget::onMouseMove);
connect(ui->widget, &QCustomPlot::mouseWheel, this, &VisualizationGraphWidget::onMouseWheel);
connect(ui->widget->xAxis, static_cast<void (QCPAxis::*)(const QCPRange &, const QCPRange &)>(
&QCPAxis::rangeChanged),
this, &VisualizationGraphWidget::onRangeChanged, Qt::DirectConnection);
// Activates menu when right clicking on the graph
ui->widget->setContextMenuPolicy(Qt::CustomContextMenu);
connect(ui->widget, &QCustomPlot::customContextMenuRequested, this,
&VisualizationGraphWidget::onGraphMenuRequested);
connect(this, &VisualizationGraphWidget::requestDataLoading, &sqpApp->variableController(),
&VariableController::onRequestDataLoading);
connect(&sqpApp->variableController(), &VariableController::updateVarDisplaying, this,
&VisualizationGraphWidget::onUpdateVarDisplaying);
}
VisualizationGraphWidget::~VisualizationGraphWidget()
{
delete ui;
}
VisualizationZoneWidget *VisualizationGraphWidget::parentZoneWidget() const noexcept
{
auto parent = parentWidget();
while (parent != nullptr && !qobject_cast<VisualizationZoneWidget *>(parent)) {
parent = parent->parentWidget();
}
return qobject_cast<VisualizationZoneWidget *>(parent);
}
void VisualizationGraphWidget::enableAcquisition(bool enable)
{
impl->m_DoAcquisition = enable;
}
void VisualizationGraphWidget::addVariable(std::shared_ptr<Variable> variable, SqpRange range)
{
// Uses delegate to create the qcpplot components according to the variable
auto createdPlottables = VisualizationGraphHelper::create(variable, *ui->widget);
impl->m_VariableToPlotMultiMap.insert({variable, std::move(createdPlottables)});
// Set axes properties according to the units of the data series
/// @todo : for the moment, no control is performed on the axes: the units and the tickers
/// are fixed for the default x-axis and y-axis of the plot, and according to the new graph
auto xAxisUnit = Unit{};
auto valuesUnit = Unit{};
if (auto dataSeries = variable->dataSeries()) {
dataSeries->lockRead();
xAxisUnit = dataSeries->xAxisUnit();
valuesUnit = dataSeries->valuesUnit();
dataSeries->unlock();
}
impl->m_RenderingDelegate->setAxesProperties(xAxisUnit, valuesUnit);
connect(variable.get(), SIGNAL(updated()), this, SLOT(onDataCacheVariableUpdated()));
this->enableAcquisition(false);
this->setGraphRange(range);
this->enableAcquisition(true);
emit requestDataLoading(QVector<std::shared_ptr<Variable> >() << variable, range, false);
emit variableAdded(variable);
}
void VisualizationGraphWidget::removeVariable(std::shared_ptr<Variable> variable) noexcept
{
// Each component associated to the variable :
// - is removed from qcpplot (which deletes it)
// - is no longer referenced in the map
auto variableIt = impl->m_VariableToPlotMultiMap.find(variable);
if (variableIt != impl->m_VariableToPlotMultiMap.cend()) {
emit variableAboutToBeRemoved(variable);
auto &plottablesMap = variableIt->second;
for (auto plottableIt = plottablesMap.cbegin(), plottableEnd = plottablesMap.cend();
plottableIt != plottableEnd;) {
ui->widget->removePlottable(plottableIt->second);
plottableIt = plottablesMap.erase(plottableIt);
}
impl->m_VariableToPlotMultiMap.erase(variableIt);
}
// Updates graph
ui->widget->replot();
}
QList<std::shared_ptr<Variable> > VisualizationGraphWidget::variables() const
{
auto variables = QList<std::shared_ptr<Variable> >{};
for (auto it = std::cbegin(impl->m_VariableToPlotMultiMap);
it != std::cend(impl->m_VariableToPlotMultiMap); ++it) {
variables << it->first;
}
return variables;
}
void VisualizationGraphWidget::setYRange(const SqpRange &range)
{
ui->widget->yAxis->setRange(range.m_TStart, range.m_TEnd);
}
SqpRange VisualizationGraphWidget::graphRange() const noexcept
{
auto graphRange = ui->widget->xAxis->range();
return SqpRange{graphRange.lower, graphRange.upper};
}
void VisualizationGraphWidget::setGraphRange(const SqpRange &range)
{
qCDebug(LOG_VisualizationGraphWidget()) << tr("VisualizationGraphWidget::setGraphRange START");
ui->widget->xAxis->setRange(range.m_TStart, range.m_TEnd);
ui->widget->replot();
qCDebug(LOG_VisualizationGraphWidget()) << tr("VisualizationGraphWidget::setGraphRange END");
}
void VisualizationGraphWidget::accept(IVisualizationWidgetVisitor *visitor)
{
if (visitor) {
visitor->visit(this);
}
else {
qCCritical(LOG_VisualizationGraphWidget())
<< tr("Can't visit widget : the visitor is null");
}
}
bool VisualizationGraphWidget::canDrop(const Variable &variable) const
{
/// @todo : for the moment, a graph can always accomodate a variable
Q_UNUSED(variable);
return true;
}
bool VisualizationGraphWidget::contains(const Variable &variable) const
{
// Finds the variable among the keys of the map
auto variablePtr = &variable;
auto findVariable
= [variablePtr](const auto &entry) { return variablePtr == entry.first.get(); };
auto end = impl->m_VariableToPlotMultiMap.cend();
auto it = std::find_if(impl->m_VariableToPlotMultiMap.cbegin(), end, findVariable);
return it != end;
}
QString VisualizationGraphWidget::name() const
{
return impl->m_Name;
}
QMimeData *VisualizationGraphWidget::mimeData() const
{
auto mimeData = new QMimeData;
mimeData->setData(MIME_TYPE_GRAPH, QByteArray());
return mimeData;
}
bool VisualizationGraphWidget::isDragAllowed() const
{
return true;
}
void VisualizationGraphWidget::closeEvent(QCloseEvent *event)
{
Q_UNUSED(event);
// Prevents that all variables will be removed from graph when it will be closed
for (auto &variableEntry : impl->m_VariableToPlotMultiMap) {
emit variableAboutToBeRemoved(variableEntry.first);
}
}
void VisualizationGraphWidget::enterEvent(QEvent *event)
{
Q_UNUSED(event);
impl->m_RenderingDelegate->showGraphOverlay(true);
}
void VisualizationGraphWidget::leaveEvent(QEvent *event)
{
Q_UNUSED(event);
impl->m_RenderingDelegate->showGraphOverlay(false);
}
QCustomPlot &VisualizationGraphWidget::plot() noexcept
{
return *ui->widget;
}
void VisualizationGraphWidget::onGraphMenuRequested(const QPoint &pos) noexcept
{
QMenu graphMenu{};
// Iterates on variables (unique keys)
for (auto it = impl->m_VariableToPlotMultiMap.cbegin(),
end = impl->m_VariableToPlotMultiMap.cend();
it != end; it = impl->m_VariableToPlotMultiMap.upper_bound(it->first)) {
// 'Remove variable' action
graphMenu.addAction(tr("Remove variable %1").arg(it->first->name()),
[ this, var = it->first ]() { removeVariable(var); });
}
if (!graphMenu.isEmpty()) {
graphMenu.exec(QCursor::pos());
}
}
void VisualizationGraphWidget::onRangeChanged(const QCPRange &t1, const QCPRange &t2)
{
qCDebug(LOG_VisualizationGraphWidget()) << tr("TORM: VisualizationGraphWidget::onRangeChanged")
<< QThread::currentThread()->objectName() << "DoAcqui"
<< impl->m_DoAcquisition;
auto graphRange = SqpRange{t1.lower, t1.upper};
auto oldGraphRange = SqpRange{t2.lower, t2.upper};
if (impl->m_DoAcquisition) {
QVector<std::shared_ptr<Variable> > variableUnderGraphVector;
for (auto it = impl->m_VariableToPlotMultiMap.begin(),
end = impl->m_VariableToPlotMultiMap.end();
it != end; it = impl->m_VariableToPlotMultiMap.upper_bound(it->first)) {
variableUnderGraphVector.push_back(it->first);
}
emit requestDataLoading(std::move(variableUnderGraphVector), graphRange,
!impl->m_IsCalibration);
if (!impl->m_IsCalibration) {
qCDebug(LOG_VisualizationGraphWidget())
<< tr("TORM: VisualizationGraphWidget::Synchronize notify !!")
<< QThread::currentThread()->objectName() << graphRange << oldGraphRange;
emit synchronize(graphRange, oldGraphRange);
}
}
}
void VisualizationGraphWidget::onMouseMove(QMouseEvent *event) noexcept
{
// Handles plot rendering when mouse is moving
impl->m_RenderingDelegate->onMouseMove(event);
VisualizationDragWidget::mouseMoveEvent(event);
}
void VisualizationGraphWidget::onMouseWheel(QWheelEvent *event) noexcept
{
auto zoomOrientations = QFlags<Qt::Orientation>{};
// Lambda that enables a zoom orientation if the key modifier related to this orientation
// has
// been pressed
auto enableOrientation
= [&zoomOrientations, event](const auto &orientation, const auto &modifier) {
auto orientationEnabled = event->modifiers().testFlag(modifier);
zoomOrientations.setFlag(orientation, orientationEnabled);
};
enableOrientation(Qt::Vertical, VERTICAL_ZOOM_MODIFIER);
enableOrientation(Qt::Horizontal, HORIZONTAL_ZOOM_MODIFIER);
ui->widget->axisRect()->setRangeZoom(zoomOrientations);
}
void VisualizationGraphWidget::onMousePress(QMouseEvent *event) noexcept
{
impl->m_IsCalibration = event->modifiers().testFlag(Qt::ControlModifier);
plot().setInteraction(QCP::iRangeDrag, !event->modifiers().testFlag(Qt::AltModifier));
VisualizationDragWidget::mousePressEvent(event);
}
void VisualizationGraphWidget::onMouseRelease(QMouseEvent *event) noexcept
{
impl->m_IsCalibration = false;
}
void VisualizationGraphWidget::onDataCacheVariableUpdated()
{
auto graphRange = ui->widget->xAxis->range();
auto dateTime = SqpRange{graphRange.lower, graphRange.upper};
for (auto &variableEntry : impl->m_VariableToPlotMultiMap) {
auto variable = variableEntry.first;
qCDebug(LOG_VisualizationGraphWidget())
<< "TORM: VisualizationGraphWidget::onDataCacheVariableUpdated S" << variable->range();
qCDebug(LOG_VisualizationGraphWidget())
<< "TORM: VisualizationGraphWidget::onDataCacheVariableUpdated E" << dateTime;
if (dateTime.contains(variable->range()) || dateTime.intersect(variable->range())) {
VisualizationGraphHelper::updateData(variableEntry.second, variable->dataSeries(),
variable->range());
}
}
}
void VisualizationGraphWidget::onUpdateVarDisplaying(std::shared_ptr<Variable> variable,
const SqpRange &range)
{
auto it = impl->m_VariableToPlotMultiMap.find(variable);
if (it != impl->m_VariableToPlotMultiMap.end()) {
VisualizationGraphHelper::updateData(it->second, variable->dataSeries(), range);
}
}