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VisualizationGraphWidget.cpp
428 lines | 17.7 KiB | text/x-c | CppLexer
/ gui / src / Visualization / VisualizationGraphWidget.cpp
#include "Visualization/VisualizationGraphWidget.h"
#include "Visualization/IVisualizationWidgetVisitor.h"
#include "Visualization/VisualizationGraphHelper.h"
#include "Visualization/VisualizationGraphRenderingDelegate.h"
#include "ui_VisualizationGraphWidget.h"
#include <Data/ArrayData.h>
#include <Data/IDataSeries.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;
/// Gets a tolerance value from application settings. If the setting can't be found, the default
/// value passed in parameter is returned
double toleranceValue(const QString &key, double defaultValue) noexcept
{
return QSettings{}.value(key, defaultValue).toDouble();
}
} // namespace
struct VisualizationGraphWidget::VisualizationGraphWidgetPrivate {
explicit VisualizationGraphWidgetPrivate()
: m_DoSynchronize{true}, m_IsCalibration{false}, m_RenderingDelegate{nullptr}
{
}
// Return the operation when range changed
VisualizationGraphWidgetZoomType getZoomType(const QCPRange &t1, const QCPRange &t2);
// 1 variable -> n qcpplot
std::multimap<std::shared_ptr<Variable>, QCPAbstractPlottable *> m_VariableToPlotMultiMap;
bool m_DoSynchronize;
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)
: QWidget{parent},
ui{new Ui::VisualizationGraphWidget},
impl{spimpl::make_unique_impl<VisualizationGraphWidgetPrivate>()}
{
ui->setupUi(this);
// The delegate must be initialized after the ui as it uses the plot
impl->m_RenderingDelegate = std::make_unique<VisualizationGraphRenderingDelegate>(*ui->widget);
ui->graphNameLabel->setText(name);
// 'Close' options : widget is deleted when closed
setAttribute(Qt::WA_DeleteOnClose);
connect(ui->closeButton, &QToolButton::clicked, this, &VisualizationGraphWidget::close);
ui->closeButton->setIcon(sqpApp->style()->standardIcon(QStyle::SP_TitleBarCloseButton));
// 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);
ui->widget->axisRect()->setRangeDrag(Qt::Horizontal);
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);
}
VisualizationGraphWidget::~VisualizationGraphWidget()
{
delete ui;
}
void VisualizationGraphWidget::enableSynchronize(bool enable)
{
impl->m_DoSynchronize = enable;
}
void VisualizationGraphWidget::addVariable(std::shared_ptr<Variable> variable)
{
// Uses delegate to create the qcpplot components according to the variable
auto createdPlottables = VisualizationGraphHelper::create(variable, *ui->widget);
for (auto createdPlottable : qAsConst(createdPlottables)) {
impl->m_VariableToPlotMultiMap.insert({variable, createdPlottable});
}
connect(variable.get(), SIGNAL(updated()), this, SLOT(onDataCacheVariableUpdated()));
}
void VisualizationGraphWidget::addVariableUsingGraph(std::shared_ptr<Variable> variable)
{
// when adding a variable, we need to set its time range to the current graph range
auto grapheRange = ui->widget->xAxis->range();
auto dateTime = SqpDateTime{grapheRange.lower, grapheRange.upper};
variable->setDateTime(dateTime);
auto variableDateTimeWithTolerance = dateTime;
// add tolerance for each side
auto toleranceFactor
= toleranceValue(GENERAL_TOLERANCE_AT_INIT_KEY, GENERAL_TOLERANCE_AT_INIT_DEFAULT_VALUE);
auto tolerance = toleranceFactor * (dateTime.m_TEnd - dateTime.m_TStart);
variableDateTimeWithTolerance.m_TStart -= tolerance;
variableDateTimeWithTolerance.m_TEnd += tolerance;
// Uses delegate to create the qcpplot components according to the variable
auto createdPlottables = VisualizationGraphHelper::create(variable, *ui->widget);
for (auto createdPlottable : qAsConst(createdPlottables)) {
impl->m_VariableToPlotMultiMap.insert({variable, createdPlottable});
}
connect(variable.get(), SIGNAL(updated()), this, SLOT(onDataCacheVariableUpdated()));
// CHangement detected, we need to ask controller to request data loading
emit requestDataLoading(variable, variableDateTimeWithTolerance);
}
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 componentsIt = impl->m_VariableToPlotMultiMap.equal_range(variable);
for (auto it = componentsIt.first; it != componentsIt.second;) {
ui->widget->removePlottable(it->second);
it = impl->m_VariableToPlotMultiMap.erase(it);
}
// Updates graph
ui->widget->replot();
}
void VisualizationGraphWidget::setRange(std::shared_ptr<Variable> variable,
const SqpDateTime &range)
{
// Note: in case of different axes that depends on variable, we could start with a code like
// that:
// auto componentsIt = impl->m_VariableToPlotMultiMap.equal_range(variable);
// for (auto it = componentsIt.first; it != componentsIt.second;) {
// }
ui->widget->xAxis->setRange(range.m_TStart, range.m_TEnd);
ui->widget->replot();
}
SqpDateTime VisualizationGraphWidget::graphRange() const noexcept
{
auto grapheRange = ui->widget->xAxis->range();
return SqpDateTime{grapheRange.lower, grapheRange.upper};
}
void VisualizationGraphWidget::setGraphRange(const SqpDateTime &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 ui->graphNameLabel->text();
}
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(mapToGlobal(pos));
}
}
void VisualizationGraphWidget::onRangeChanged(const QCPRange &t1, const QCPRange &t2)
{
qCInfo(LOG_VisualizationGraphWidget()) << tr("VisualizationGraphWidget::onRangeChanged")
<< QThread::currentThread()->objectName();
auto dateTimeRange = SqpDateTime{t1.lower, t1.upper};
auto zoomType = impl->getZoomType(t1, t2);
for (auto it = impl->m_VariableToPlotMultiMap.cbegin();
it != impl->m_VariableToPlotMultiMap.cend(); ++it) {
auto variable = it->first;
auto currentDateTime = dateTimeRange;
auto toleranceFactor = toleranceValue(GENERAL_TOLERANCE_AT_UPDATE_KEY,
GENERAL_TOLERANCE_AT_UPDATE_DEFAULT_VALUE);
auto tolerance = toleranceFactor * (currentDateTime.m_TEnd - currentDateTime.m_TStart);
auto variableDateTimeWithTolerance = currentDateTime;
variableDateTimeWithTolerance.m_TStart -= tolerance;
variableDateTimeWithTolerance.m_TEnd += tolerance;
qCDebug(LOG_VisualizationGraphWidget()) << "r" << currentDateTime;
qCDebug(LOG_VisualizationGraphWidget()) << "t" << variableDateTimeWithTolerance;
qCDebug(LOG_VisualizationGraphWidget()) << "v" << variable->dateTime();
// If new range with tol is upper than variable datetime parameters. we need to request new
// data
if (!variable->contains(variableDateTimeWithTolerance)) {
auto variableDateTimeWithTolerance = currentDateTime;
if (!variable->isInside(currentDateTime)) {
auto variableDateTime = variable->dateTime();
if (variable->contains(variableDateTimeWithTolerance)) {
qCDebug(LOG_VisualizationGraphWidget())
<< tr("TORM: Detection zoom in that need request:");
// add tolerance for each side
tolerance
= toleranceFactor * (currentDateTime.m_TEnd - currentDateTime.m_TStart);
variableDateTimeWithTolerance.m_TStart -= tolerance;
variableDateTimeWithTolerance.m_TEnd += tolerance;
}
else if (variableDateTime.m_TStart < currentDateTime.m_TStart) {
qCInfo(LOG_VisualizationGraphWidget()) << tr("TORM: Detection pan to right:");
auto diffEndToKeepDelta = currentDateTime.m_TEnd - variableDateTime.m_TEnd;
currentDateTime.m_TStart = variableDateTime.m_TStart + diffEndToKeepDelta;
// Tolerance have to be added to the right
// add tolerance for right (end) side
tolerance
= toleranceFactor * (currentDateTime.m_TEnd - currentDateTime.m_TStart);
variableDateTimeWithTolerance.m_TEnd += tolerance;
}
else if (variableDateTime.m_TEnd > currentDateTime.m_TEnd) {
qCDebug(LOG_VisualizationGraphWidget()) << tr("TORM: Detection pan to left: ");
auto diffStartToKeepDelta
= variableDateTime.m_TStart - currentDateTime.m_TStart;
currentDateTime.m_TEnd = variableDateTime.m_TEnd - diffStartToKeepDelta;
// Tolerance have to be added to the left
// add tolerance for left (start) side
tolerance
= toleranceFactor * (currentDateTime.m_TEnd - currentDateTime.m_TStart);
variableDateTimeWithTolerance.m_TStart -= tolerance;
}
else {
qCCritical(LOG_VisualizationGraphWidget())
<< tr("Detection anormal zoom detection: ");
}
}
else {
qCDebug(LOG_VisualizationGraphWidget()) << tr("TORM: Detection zoom out: ");
// add tolerance for each side
tolerance = toleranceFactor * (currentDateTime.m_TEnd - currentDateTime.m_TStart);
variableDateTimeWithTolerance.m_TStart -= tolerance;
variableDateTimeWithTolerance.m_TEnd += tolerance;
zoomType = VisualizationGraphWidgetZoomType::ZoomOut;
}
if (!variable->contains(dateTimeRange)) {
qCDebug(LOG_VisualizationGraphWidget())
<< "TORM: Modif on variable datetime detected" << currentDateTime;
variable->setDateTime(currentDateTime);
}
qCDebug(LOG_VisualizationGraphWidget()) << tr("TORM: Request data detection: ");
// CHangement detected, we need to ask controller to request data loading
emit requestDataLoading(variable, variableDateTimeWithTolerance);
}
else {
qCInfo(LOG_VisualizationGraphWidget())
<< tr("TORM: Detection zoom in that doesn't need request: ");
zoomType = VisualizationGraphWidgetZoomType::ZoomIn;
}
}
if (impl->m_DoSynchronize && !impl->m_IsCalibration) {
auto oldDateTime = SqpDateTime{t2.lower, t2.upper};
qCDebug(LOG_VisualizationGraphWidget())
<< tr("TORM: VisualizationGraphWidget::Synchronize notify !!")
<< QThread::currentThread()->objectName();
emit synchronize(dateTimeRange, oldDateTime, zoomType);
}
}
void VisualizationGraphWidget::onMouseMove(QMouseEvent *event) noexcept
{
// Handles plot rendering when mouse is moving
impl->m_RenderingDelegate->onMouseMove(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);
}
void VisualizationGraphWidget::onMouseRelease(QMouseEvent *event) noexcept
{
impl->m_IsCalibration = false;
}
void VisualizationGraphWidget::onDataCacheVariableUpdated()
{
// NOTE:
// We don't want to call the method for each component of a variable unitarily, but for
// all
// its components at once (eg its three components in the case of a vector).
// The unordered_multimap does not do this easily, so the question is whether to:
// - use an ordered_multimap and the algos of std to group the values by key
// - use a map (unique keys) and store as values directly the list of components
auto grapheRange = ui->widget->xAxis->range();
auto dateTime = SqpDateTime{grapheRange.lower, grapheRange.upper};
for (auto it = impl->m_VariableToPlotMultiMap.cbegin();
it != impl->m_VariableToPlotMultiMap.cend(); ++it) {
auto variable = it->first;
qCDebug(LOG_VisualizationGraphWidget())
<< "TORM: VisualizationGraphWidget::onDataCacheVariableUpdated S"
<< variable->dateTime();
qCDebug(LOG_VisualizationGraphWidget())
<< "TORM: VisualizationGraphWidget::onDataCacheVariableUpdated E" << dateTime;
if (dateTime.contains(variable->dateTime()) || dateTime.intersect(variable->dateTime())) {
VisualizationGraphHelper::updateData(QVector<QCPAbstractPlottable *>{} << it->second,
variable->dataSeries(), variable->dateTime());
}
}
}
VisualizationGraphWidgetZoomType
VisualizationGraphWidget::VisualizationGraphWidgetPrivate::getZoomType(const QCPRange &t1,
const QCPRange &t2)
{
// t1.lower <= t2.lower && t2.upper <= t1.upper
auto zoomType = VisualizationGraphWidgetZoomType::Unknown;
if (t1.lower <= t2.lower && t2.upper <= t1.upper) {
zoomType = VisualizationGraphWidgetZoomType::ZoomOut;
}
else if (t1.lower > t2.lower && t1.upper > t2.upper) {
zoomType = VisualizationGraphWidgetZoomType::PanRight;
}
else if (t1.lower < t2.lower && t1.upper < t2.upper) {
zoomType = VisualizationGraphWidgetZoomType::PanLeft;
}
else if (t1.lower > t2.lower && t2.upper > t1.upper) {
zoomType = VisualizationGraphWidgetZoomType::ZoomIn;
}
else {
qCCritical(LOG_VisualizationGraphWidget()) << "getZoomType: Unknown type detected";
}
return zoomType;
}