##// END OF EJS Templates
onRangeChanged is now based on the good range (the new one)...
onRangeChanged is now based on the good range (the new one) setTimeRange is now connected to rescaleAxes and replot methods

File last commit:

r315:076efd0d6728
r315:076efd0d6728
Show More
VisualizationGraphWidget.cpp
269 lines | 10.4 KiB | text/x-c | CppLexer
/ gui / src / Visualization / VisualizationGraphWidget.cpp
#include "Visualization/VisualizationGraphWidget.h"
#include "Visualization/IVisualizationWidgetVisitor.h"
#include "Visualization/VisualizationGraphHelper.h"
#include "ui_VisualizationGraphWidget.h"
#include <Data/ArrayData.h>
#include <Data/IDataSeries.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 {
// 1 variable -> n qcpplot
std::multimap<std::shared_ptr<Variable>, QCPAbstractPlottable *> m_VariableToPlotMultiMap;
};
VisualizationGraphWidget::VisualizationGraphWidget(const QString &name, QWidget *parent)
: QWidget{parent},
ui{new Ui::VisualizationGraphWidget},
impl{spimpl::make_unique_impl<VisualizationGraphWidgetPrivate>()}
{
ui->setupUi(this);
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::mouseWheel, this, &VisualizationGraphWidget::onMouseWheel);
connect(ui->widget->xAxis,
static_cast<void (QCPAxis::*)(const QCPRange &)>(&QCPAxis::rangeChanged), this,
&VisualizationGraphWidget::onRangeChanged);
// 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::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);
qCInfo(LOG_VisualizationGraphWidget()) << "ADD Variable with range : " << dateTime;
auto variableDateTimeWithTolerance = dateTime;
// add 10% tolerance for each side
auto tolerance = 0.1 * (dateTime.m_TEnd - dateTime.m_TStart);
variableDateTimeWithTolerance.m_TStart -= tolerance;
variableDateTimeWithTolerance.m_TEnd += tolerance;
qCInfo(LOG_VisualizationGraphWidget()) << "ADD Variable with range TOL: "
<< variableDateTimeWithTolerance;
// 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::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;
}
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)
{
qCInfo(LOG_VisualizationGraphWidget()) << tr("VisualizationGraphWidget::onRangeChanged");
for (auto it = impl->m_VariableToPlotMultiMap.cbegin();
it != impl->m_VariableToPlotMultiMap.cend(); ++it) {
auto variable = it->first;
auto dateTime = SqpDateTime{t1.lower, t1.upper};
if (!variable->contains(dateTime)) {
qCInfo(LOG_VisualizationGraphWidget()) << dateTime << variable->dateTime();
auto variableDateTimeWithTolerance = dateTime;
if (variable->intersect(dateTime)) {
auto variableDateTime = variable->dateTime();
if (variableDateTime.m_TStart < dateTime.m_TStart) {
auto diffEndToKeepDelta = dateTime.m_TEnd - variableDateTime.m_TEnd;
dateTime.m_TStart = variableDateTime.m_TStart + diffEndToKeepDelta;
// Tolerance have to be added to the right
// add 10% tolerance for right (end) side
auto tolerance = 0.1 * (dateTime.m_TEnd - dateTime.m_TStart);
variableDateTimeWithTolerance.m_TEnd += tolerance;
}
if (variableDateTime.m_TEnd > dateTime.m_TEnd) {
auto diffStartToKeepDelta = variableDateTime.m_TStart - dateTime.m_TStart;
dateTime.m_TEnd = variableDateTime.m_TEnd - diffStartToKeepDelta;
// Tolerance have to be added to the left
// add 10% tolerance for left (start) side
auto tolerance = 0.1 * (dateTime.m_TEnd - dateTime.m_TStart);
variableDateTimeWithTolerance.m_TStart -= tolerance;
}
}
else {
// add 10% tolerance for each side
auto tolerance = 0.1 * (dateTime.m_TEnd - dateTime.m_TStart);
variableDateTimeWithTolerance.m_TStart -= tolerance;
variableDateTimeWithTolerance.m_TEnd += tolerance;
}
variable->setDateTime(dateTime);
// CHangement detected, we need to ask controller to request data loading
emit requestDataLoading(variable, variableDateTimeWithTolerance);
}
}
}
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::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
for (auto it = impl->m_VariableToPlotMultiMap.cbegin();
it != impl->m_VariableToPlotMultiMap.cend(); ++it) {
auto variable = it->first;
VisualizationGraphHelper::updateData(QVector<QCPAbstractPlottable *>{} << it->second,
variable->dataSeries(), variable->dateTime());
}
}
void VisualizationGraphWidget::updateDisplay(std::shared_ptr<Variable> variable)
{
auto abstractPlotableItPair = impl->m_VariableToPlotMultiMap.equal_range(variable);
auto abstractPlotableVect = QVector<QCPAbstractPlottable *>{};
for (auto it = abstractPlotableItPair.first; it != abstractPlotableItPair.second; ++it) {
abstractPlotableVect.push_back(it->second);
}
VisualizationGraphHelper::updateData(abstractPlotableVect, variable->dataSeries(),
variable->dateTime());
}