subsurface/stats/statsgrid.cpp
Berthold Stoeger ab324ed769 statistics: paint custom grid
With removal of QtCharts' axes, the grid was lost. Readd it.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2021-01-06 12:31:22 -08:00

36 lines
1 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#include "statsgrid.h"
#include "statsaxis.h"
#include "statscolors.h"
#include "zvalues.h"
#include <QChart>
#include <QGraphicsLineItem>
static const double gridWidth = 1.0;
static const Qt::PenStyle gridStyle = Qt::SolidLine;
StatsGrid::StatsGrid(QtCharts::QChart *chart, const StatsAxis &xAxis, const StatsAxis &yAxis)
: chart(chart), xAxis(xAxis), yAxis(yAxis)
{
}
void StatsGrid::updatePositions()
{
std::vector<double> xtics = xAxis.ticksPositions();
std::vector<double> ytics = yAxis.ticksPositions();
lines.clear();
if (xtics.empty() || ytics.empty())
return;
for (double x: xtics) {
lines.emplace_back(new QGraphicsLineItem(x, ytics.front(), x, ytics.back(), chart));
lines.back()->setPen(QPen(gridColor, gridWidth, gridStyle));
lines.back()->setZValue(ZValues::grid);
}
for (double y: ytics) {
lines.emplace_back(new QGraphicsLineItem(xtics.front(), y, xtics.back(), y, chart));
lines.back()->setPen(QPen(gridColor, gridWidth, gridStyle));
lines.back()->setZValue(ZValues::grid);
}
}