|
|
#include "Visualization/VisualizationGraphRenderingDelegate.h"
|
|
|
#include "Visualization/AxisRenderingUtils.h"
|
|
|
#include "Visualization/ColorScaleEditor.h"
|
|
|
#include "Visualization/PlottablesRenderingUtils.h"
|
|
|
#include "Visualization/SqpColorScale.h"
|
|
|
#include "Visualization/VisualizationGraphWidget.h"
|
|
|
#include "Visualization/qcustomplot.h"
|
|
|
|
|
|
#include <Common/DateUtils.h>
|
|
|
|
|
|
#include <Data/IDataSeries.h>
|
|
|
|
|
|
#include <SqpApplication.h>
|
|
|
|
|
|
namespace {
|
|
|
|
|
|
/// Name of the axes layer in QCustomPlot
|
|
|
const auto AXES_LAYER = QStringLiteral("axes");
|
|
|
|
|
|
/// Icon used to show x-axis properties
|
|
|
const auto HIDE_AXIS_ICON_PATH = QStringLiteral(":/icones/down.png");
|
|
|
|
|
|
/// Name of the overlay layer in QCustomPlot
|
|
|
const auto OVERLAY_LAYER = QStringLiteral("overlay");
|
|
|
|
|
|
/// Pixmap used to show x-axis properties
|
|
|
const auto SHOW_AXIS_ICON_PATH = QStringLiteral(":/icones/up.png");
|
|
|
|
|
|
/// Tooltip format for graphs
|
|
|
const auto GRAPH_TOOLTIP_FORMAT = QStringLiteral("key: %1\nvalue: %2");
|
|
|
|
|
|
/// Tooltip format for colormaps
|
|
|
const auto COLORMAP_TOOLTIP_FORMAT = QStringLiteral("x: %1\ny: %2\nvalue: %3");
|
|
|
|
|
|
/// Offset used to shift the tooltip of the mouse
|
|
|
const auto TOOLTIP_OFFSET = QPoint{20, 20};
|
|
|
|
|
|
/// Tooltip display rectangle (the tooltip is hidden when the mouse leaves this rectangle)
|
|
|
const auto TOOLTIP_RECT = QRect{10, 10, 10, 10};
|
|
|
|
|
|
/// Timeout after which the tooltip is displayed
|
|
|
const auto TOOLTIP_TIMEOUT = 500;
|
|
|
|
|
|
void initPointTracerStyle(QCPItemTracer &tracer) noexcept
|
|
|
{
|
|
|
tracer.setInterpolating(false);
|
|
|
tracer.setStyle(QCPItemTracer::tsCircle);
|
|
|
tracer.setSize(3);
|
|
|
tracer.setPen(QPen(Qt::black));
|
|
|
tracer.setBrush(Qt::black);
|
|
|
tracer.setSelectable(false);
|
|
|
}
|
|
|
|
|
|
QPixmap pixmap(const QString &iconPath) noexcept
|
|
|
{
|
|
|
return QIcon{iconPath}.pixmap(QSize{16, 16});
|
|
|
}
|
|
|
|
|
|
void initClosePixmapStyle(QCPItemPixmap &pixmap) noexcept
|
|
|
{
|
|
|
// Icon
|
|
|
pixmap.setPixmap(
|
|
|
sqpApp->style()->standardIcon(QStyle::SP_TitleBarCloseButton).pixmap(QSize{16, 16}));
|
|
|
|
|
|
// Position
|
|
|
pixmap.topLeft->setType(QCPItemPosition::ptAxisRectRatio);
|
|
|
pixmap.topLeft->setCoords(1, 0);
|
|
|
pixmap.setClipToAxisRect(false);
|
|
|
|
|
|
// Can be selected
|
|
|
pixmap.setSelectable(true);
|
|
|
}
|
|
|
|
|
|
void initXAxisPixmapStyle(QCPItemPixmap &itemPixmap) noexcept
|
|
|
{
|
|
|
// Icon
|
|
|
itemPixmap.setPixmap(pixmap(HIDE_AXIS_ICON_PATH));
|
|
|
|
|
|
// Position
|
|
|
itemPixmap.topLeft->setType(QCPItemPosition::ptAxisRectRatio);
|
|
|
itemPixmap.topLeft->setCoords(0, 1);
|
|
|
itemPixmap.setClipToAxisRect(false);
|
|
|
|
|
|
// Can be selected
|
|
|
itemPixmap.setSelectable(true);
|
|
|
}
|
|
|
|
|
|
void initTitleTextStyle(QCPItemText &text) noexcept
|
|
|
{
|
|
|
// Font and background styles
|
|
|
text.setColor(Qt::gray);
|
|
|
text.setBrush(Qt::white);
|
|
|
|
|
|
// Position
|
|
|
text.setPositionAlignment(Qt::AlignTop | Qt::AlignLeft);
|
|
|
text.position->setType(QCPItemPosition::ptAxisRectRatio);
|
|
|
text.position->setCoords(0.5, 0);
|
|
|
text.setSelectable(false);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Returns the cell index (x or y) of a colormap according to the coordinate passed in parameter.
|
|
|
* This method handles the fact that a colormap axis can be logarithmic or linear.
|
|
|
* @param colormap the colormap for which to calculate the index
|
|
|
* @param coord the coord to convert to cell index
|
|
|
* @param xCoord calculates the x index if true, calculates y index if false
|
|
|
* @return the cell index
|
|
|
*/
|
|
|
int colorMapCellIndex(const QCPColorMap &colormap, double coord, bool xCoord)
|
|
|
{
|
|
|
// Determines the axis of the colormap according to xCoord, and whether it is logarithmic or not
|
|
|
auto isLogarithmic = (xCoord ? colormap.keyAxis() : colormap.valueAxis())->scaleType()
|
|
|
== QCPAxis::stLogarithmic;
|
|
|
|
|
|
if (isLogarithmic) {
|
|
|
// For a logarithmic axis we can't use the conversion method of colormap, so we calculate
|
|
|
// the index manually based on the position of the coordinate on the axis
|
|
|
|
|
|
// Gets the axis range and the number of values between range bounds to calculate the step
|
|
|
// between each value of the range
|
|
|
auto range = xCoord ? colormap.data()->keyRange() : colormap.data()->valueRange();
|
|
|
auto nbValues = (xCoord ? colormap.data()->keySize() : colormap.data()->valueSize()) - 1;
|
|
|
auto valueStep
|
|
|
= (std::log10(range.upper) - std::log10(range.lower)) / static_cast<double>(nbValues);
|
|
|
|
|
|
// According to the coord position, calculates the closest index in the range
|
|
|
return std::round((std::log10(coord) - std::log10(range.lower)) / valueStep);
|
|
|
}
|
|
|
else {
|
|
|
// For a linear axis, we use the conversion method of colormap
|
|
|
int index;
|
|
|
if (xCoord) {
|
|
|
colormap.data()->coordToCell(coord, 0., &index, nullptr);
|
|
|
}
|
|
|
else {
|
|
|
colormap.data()->coordToCell(0., coord, nullptr, &index);
|
|
|
}
|
|
|
|
|
|
return index;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
} // namespace
|
|
|
|
|
|
struct VisualizationGraphRenderingDelegate::VisualizationGraphRenderingDelegatePrivate {
|
|
|
explicit VisualizationGraphRenderingDelegatePrivate(VisualizationGraphWidget &graphWidget)
|
|
|
: m_Plot{graphWidget.plot()},
|
|
|
m_PointTracer{new QCPItemTracer{&m_Plot}},
|
|
|
m_TracerTimer{},
|
|
|
m_ClosePixmap{new QCPItemPixmap{&m_Plot}},
|
|
|
m_TitleText{new QCPItemText{&m_Plot}},
|
|
|
m_XAxisPixmap{new QCPItemPixmap{&m_Plot}},
|
|
|
m_ShowXAxis{true},
|
|
|
m_XAxisLabel{},
|
|
|
m_ColorScale{SqpColorScale{m_Plot}}
|
|
|
{
|
|
|
initPointTracerStyle(*m_PointTracer);
|
|
|
|
|
|
m_TracerTimer.setInterval(TOOLTIP_TIMEOUT);
|
|
|
m_TracerTimer.setSingleShot(true);
|
|
|
|
|
|
// Inits "close button" in plot overlay
|
|
|
m_ClosePixmap->setLayer(OVERLAY_LAYER);
|
|
|
initClosePixmapStyle(*m_ClosePixmap);
|
|
|
|
|
|
// Connects pixmap selection to graph widget closing
|
|
|
QObject::connect(&m_Plot, &QCustomPlot::itemClick,
|
|
|
[&graphWidget, this](auto item, auto mouseEvent) {
|
|
|
if (item == m_ClosePixmap) {
|
|
|
graphWidget.close();
|
|
|
}
|
|
|
});
|
|
|
|
|
|
// Inits graph name in plot overlay
|
|
|
m_TitleText->setLayer(OVERLAY_LAYER);
|
|
|
m_TitleText->setText(graphWidget.name());
|
|
|
initTitleTextStyle(*m_TitleText);
|
|
|
|
|
|
// Inits "show x-axis button" in plot overlay
|
|
|
m_XAxisPixmap->setLayer(OVERLAY_LAYER);
|
|
|
initXAxisPixmapStyle(*m_XAxisPixmap);
|
|
|
|
|
|
// Connects pixmap selection to graph x-axis showing/hiding
|
|
|
QObject::connect(&m_Plot, &QCustomPlot::itemClick, [this](auto item, auto mouseEvent) {
|
|
|
if (m_XAxisPixmap == item) {
|
|
|
// Changes the selection state and refreshes the x-axis
|
|
|
m_ShowXAxis = !m_ShowXAxis;
|
|
|
this->updateXAxisState();
|
|
|
m_Plot.layer(AXES_LAYER)->replot();
|
|
|
|
|
|
// Deselects the x-axis pixmap and updates icon
|
|
|
m_XAxisPixmap->setPixmap(
|
|
|
pixmap(m_ShowXAxis ? HIDE_AXIS_ICON_PATH : SHOW_AXIS_ICON_PATH));
|
|
|
m_Plot.layer(OVERLAY_LAYER)->replot();
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
|
|
|
/// Updates state of x-axis according to the current selection of x-axis pixmap
|
|
|
/// @remarks the method doesn't call plot refresh
|
|
|
void updateXAxisState() noexcept
|
|
|
{
|
|
|
m_Plot.xAxis->setTickLabels(m_ShowXAxis);
|
|
|
m_Plot.xAxis->setLabel(m_ShowXAxis ? m_XAxisLabel : QString{});
|
|
|
}
|
|
|
|
|
|
QCustomPlot &m_Plot;
|
|
|
QCPItemTracer *m_PointTracer;
|
|
|
QTimer m_TracerTimer;
|
|
|
QCPItemPixmap *m_ClosePixmap; /// Graph's close button
|
|
|
QCPItemText *m_TitleText; /// Graph's title
|
|
|
QCPItemPixmap *m_XAxisPixmap;
|
|
|
bool m_ShowXAxis; /// X-axis properties are shown or hidden
|
|
|
QString m_XAxisLabel;
|
|
|
SqpColorScale m_ColorScale; /// Color scale used for some types of graphs (as spectrograms)
|
|
|
};
|
|
|
|
|
|
VisualizationGraphRenderingDelegate::VisualizationGraphRenderingDelegate(
|
|
|
VisualizationGraphWidget &graphWidget)
|
|
|
: impl{spimpl::make_unique_impl<VisualizationGraphRenderingDelegatePrivate>(graphWidget)}
|
|
|
{
|
|
|
}
|
|
|
|
|
|
void VisualizationGraphRenderingDelegate::onMouseDoubleClick(QMouseEvent *event) noexcept
|
|
|
{
|
|
|
// Opens color scale editor if color scale is double clicked
|
|
|
auto colorScale = static_cast<QCPColorScale *>(impl->m_Plot.layoutElementAt(event->pos()));
|
|
|
if (impl->m_ColorScale.m_Scale == colorScale) {
|
|
|
if (ColorScaleEditor{impl->m_ColorScale}.exec() == QDialog::Accepted) {
|
|
|
impl->m_Plot.replot();
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void VisualizationGraphRenderingDelegate::onMouseMove(QMouseEvent *event) noexcept
|
|
|
{
|
|
|
// Cancels pending refresh
|
|
|
impl->m_TracerTimer.disconnect();
|
|
|
|
|
|
// Reinits tracers
|
|
|
impl->m_PointTracer->setGraph(nullptr);
|
|
|
impl->m_PointTracer->setVisible(false);
|
|
|
impl->m_Plot.replot();
|
|
|
|
|
|
QString tooltip{};
|
|
|
|
|
|
// Gets the graph under the mouse position
|
|
|
auto eventPos = event->pos();
|
|
|
if (auto graph = qobject_cast<QCPGraph *>(impl->m_Plot.plottableAt(eventPos))) {
|
|
|
auto mouseKey = graph->keyAxis()->pixelToCoord(eventPos.x());
|
|
|
auto graphData = graph->data();
|
|
|
|
|
|
// Gets the closest data point to the mouse
|
|
|
auto graphDataIt = graphData->findBegin(mouseKey);
|
|
|
if (graphDataIt != graphData->constEnd()) {
|
|
|
// Sets tooltip
|
|
|
auto key = formatValue(graphDataIt->key, *graph->keyAxis());
|
|
|
auto value = formatValue(graphDataIt->value, *graph->valueAxis());
|
|
|
tooltip = GRAPH_TOOLTIP_FORMAT.arg(key, value);
|
|
|
|
|
|
// Displays point tracer
|
|
|
impl->m_PointTracer->setGraph(graph);
|
|
|
impl->m_PointTracer->setGraphKey(graphDataIt->key);
|
|
|
impl->m_PointTracer->setLayer(
|
|
|
impl->m_Plot.layer("main")); // Tracer is set on top of the plot's main layer
|
|
|
impl->m_PointTracer->setVisible(true);
|
|
|
impl->m_Plot.replot();
|
|
|
}
|
|
|
}
|
|
|
else if (auto colorMap = qobject_cast<QCPColorMap *>(impl->m_Plot.plottableAt(eventPos))) {
|
|
|
// Gets x and y coords
|
|
|
auto x = colorMap->keyAxis()->pixelToCoord(eventPos.x());
|
|
|
auto y = colorMap->valueAxis()->pixelToCoord(eventPos.y());
|
|
|
|
|
|
// Calculates x and y cell indexes, and retrieves the underlying value
|
|
|
auto xCellIndex = colorMapCellIndex(*colorMap, x, true);
|
|
|
auto yCellIndex = colorMapCellIndex(*colorMap, y, false);
|
|
|
auto value = colorMap->data()->cell(xCellIndex, yCellIndex);
|
|
|
|
|
|
// Sets tooltips
|
|
|
tooltip = COLORMAP_TOOLTIP_FORMAT.arg(formatValue(x, *colorMap->keyAxis()),
|
|
|
formatValue(y, *colorMap->valueAxis()),
|
|
|
formatValue(value, *colorMap->colorScale()->axis()));
|
|
|
}
|
|
|
|
|
|
if (!tooltip.isEmpty()) {
|
|
|
// Starts timer to show tooltip after timeout
|
|
|
auto showTooltip = [tooltip, eventPos, this]() {
|
|
|
QToolTip::showText(impl->m_Plot.mapToGlobal(eventPos) + TOOLTIP_OFFSET, tooltip,
|
|
|
&impl->m_Plot, TOOLTIP_RECT);
|
|
|
};
|
|
|
|
|
|
QObject::connect(&impl->m_TracerTimer, &QTimer::timeout, showTooltip);
|
|
|
impl->m_TracerTimer.start();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void VisualizationGraphRenderingDelegate::onPlotUpdated() noexcept
|
|
|
{
|
|
|
// Updates color scale bounds
|
|
|
impl->m_ColorScale.updateDataRange();
|
|
|
impl->m_Plot.replot();
|
|
|
}
|
|
|
|
|
|
void VisualizationGraphRenderingDelegate::setAxesProperties(
|
|
|
std::shared_ptr<IDataSeries> dataSeries) noexcept
|
|
|
{
|
|
|
// Stores x-axis label to be able to retrieve it when x-axis pixmap is unselected
|
|
|
impl->m_XAxisLabel = dataSeries->xAxisUnit().m_Name;
|
|
|
|
|
|
auto axisHelper = IAxisHelperFactory::create(dataSeries);
|
|
|
axisHelper->setProperties(impl->m_Plot, impl->m_ColorScale);
|
|
|
|
|
|
// Updates x-axis state
|
|
|
impl->updateXAxisState();
|
|
|
|
|
|
impl->m_Plot.layer(AXES_LAYER)->replot();
|
|
|
}
|
|
|
|
|
|
void VisualizationGraphRenderingDelegate::setPlottablesProperties(
|
|
|
std::shared_ptr<IDataSeries> dataSeries, PlottablesMap &plottables) noexcept
|
|
|
{
|
|
|
auto plottablesHelper = IPlottablesHelperFactory::create(dataSeries);
|
|
|
plottablesHelper->setProperties(plottables);
|
|
|
}
|
|
|
|
|
|
void VisualizationGraphRenderingDelegate::showGraphOverlay(bool show) noexcept
|
|
|
{
|
|
|
auto overlay = impl->m_Plot.layer(OVERLAY_LAYER);
|
|
|
overlay->setVisible(show);
|
|
|
overlay->replot();
|
|
|
}
|
|
|
|
