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This commit is contained in:
feiyangqingyun
2022-05-18 17:39:04 +08:00
parent 96938b94f9
commit a155ad45d3
32 changed files with 145 additions and 322 deletions
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5
third/qcustomplotdemo/frmexample/frmfinancial.cpp
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@@ -60,10 +60,12 @@ void frmFinancial::initForm()
volumeAxisRect->setMaximumSize(QSize(QWIDGETSIZE_MAX, 100));
volumeAxisRect->axis(QCPAxis::atBottom)->setLayer("axes");
volumeAxisRect->axis(QCPAxis::atBottom)->grid()->setLayer("grid");
// bring bottom and main axis rect closer together:
ui->customPlot->plotLayout()->setRowSpacing(0);
volumeAxisRect->setAutoMargins(QCP::msLeft | QCP::msRight | QCP::msBottom);
volumeAxisRect->setMargins(QMargins(0, 0, 0, 0));
// create two bar plottables, for positive (green) and negative (red) volume bars:
ui->customPlot->setAutoAddPlottableToLegend(false);
QCPBars *volumePos = new QCPBars(volumeAxisRect->axis(QCPAxis::atBottom), volumeAxisRect->axis(QCPAxis::atLeft));
@@ -72,6 +74,7 @@ void frmFinancial::initForm()
int v = std::rand() % 20000 + std::rand() % 20000 + std::rand() % 20000 - 10000 * 3;
(v < 0 ? volumeNeg : volumePos)->addData(startTime + 3600 * 5.0 * i, qAbs(v)); // add data to either volumeNeg or volumePos, depending on sign of v
}
volumePos->setWidth(3600 * 4);
volumePos->setPen(Qt::NoPen);
volumePos->setBrush(QColor(100, 180, 110));
@@ -82,6 +85,7 @@ void frmFinancial::initForm()
// interconnect x axis ranges of main and bottom axis rects:
connect(ui->customPlot->xAxis, SIGNAL(rangeChanged(QCPRange)), volumeAxisRect->axis(QCPAxis::atBottom), SLOT(setRange(QCPRange)));
connect(volumeAxisRect->axis(QCPAxis::atBottom), SIGNAL(rangeChanged(QCPRange)), ui->customPlot->xAxis, SLOT(setRange(QCPRange)));
// configure axes of both main and bottom axis rect:
QSharedPointer<QCPAxisTickerDateTime> dateTimeTicker(new QCPAxisTickerDateTime);
dateTimeTicker->setDateTimeSpec(Qt::UTC);
@@ -100,6 +104,5 @@ void frmFinancial::initForm()
QCPMarginGroup *group = new QCPMarginGroup(ui->customPlot);
ui->customPlot->axisRect()->setMarginGroup(QCP::msLeft | QCP::msRight, group);
volumeAxisRect->setMarginGroup(QCP::msLeft | QCP::msRight, group);
ui->customPlot->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom);
}