void GenericHistogramView::init()
{
this->setMouseTracking(true); //Switch on mouse tracking (no need to press button)
_qwtPlot->setTitle("Histogram");
_qwtPlot->setCanvasBackground(QColor(Qt::gray));
_qwtPlot->plotLayout()->setAlignCanvasToScales(true);
_qwtPlot->setAxisTitle(QwtPlot::yLeft, "Number of specimen");
_qwtPlot->setAxisTitle(QwtPlot::xBottom, "Pixel value");
QwtLegend* legend = new QwtLegend();
legend->setItemMode(QwtLegend::CheckableItem);
_qwtPlot->insertLegend(legend, QwtPlot::RightLegend);
populate();
_qwtPlot->canvas()->setMouseTracking(true);
if(_horizontal)
_principalPicker = new HistogramPicker(QwtPlotPicker::HLineRubberBand, QwtPicker::AlwaysOn, _qwtPlot->canvas());
else
_principalPicker = new HistogramPicker(QwtPlotPicker::VLineRubberBand, QwtPicker::AlwaysOn, _qwtPlot->canvas());
_principalPicker->setStateMachine(new QwtPickerDragPointMachine());
_principalPicker->setTrackerPen(QColor(Qt::white));
_principalPicker->setRubberBandPen(QColor(Qt::yellow));
_leftPicker = new HistogramPicker(_qwtPlot->canvas());
_leftPicker->setStateMachine(new QwtPickerDragPointMachine());
_rightPicker = new HistogramPicker(_qwtPlot->canvas());
_rightPicker->setStateMachine(new QwtPickerDragPointMachine());
_rightPicker->setRubberBand(QwtPlotPicker::VLineRubberBand);
_rightPicker->setRubberBandPen(QColor(Qt::yellow));
_rightPicker->setMousePattern(QwtPicker::MouseSelect1, Qt::RightButton);
connect(_qwtPlot, SIGNAL(legendChecked(QwtPlotItem*, bool)), this, SLOT(showItem(QwtPlotItem*, bool)));
connect(_rightPicker, SIGNAL(selected(const QPointF&)), this, SLOT(rightClick(const QPointF&)));
connect(_leftPicker, SIGNAL(selected(const QPointF&)), this, SLOT(leftClick(const QPointF&)));
connect(_principalPicker, SIGNAL(moved(const QPointF&)), this, SLOT(move(const QPointF&)));
_qwtPlot->replot(); // creating the legend items
QwtPlotItemList items = _qwtPlot->itemList(QwtPlotItem::Rtti_PlotHistogram);
for(int i = 0; i < items.size(); i++)
{
QwtLegendItem* legendItem = qobject_cast<QwtLegendItem*>(legend->find(items[i]));
if(legendItem)
legendItem->setChecked(true);
items[i]->setVisible(true);
}
_qwtPlot->setAutoReplot(true);
}
void MainWindow::showCurve(QwtPlotItem *item, bool on)
{
item->setVisible(on);
QwtLegendItem *legendItem = qobject_cast<QwtLegendItem*>(ui->plot->legend()->find(item));
if (legendItem) {
legendItem->setChecked(on);
}
}
void MainWindow::sampleFormatChanged()
{
for (int i = 0; i < curves.size(); i++) {
curves[i].curve->detach();
delete curves[i].curve;
curves[i].data->clear();
delete curves[i].data;
}
curves.clear();
timeAxis.clear();
QList<sampleValue> sampleList = kwp.getSample();
int numSamples = settingsDialog->rate * settingsDialog->historySecs + 1;
timeAxis.clear();
for (int i = 0; i < numSamples; i++) {
timeAxis.prepend(-i / static_cast<double>(settingsDialog->rate));
}
int numColors = sizeof(colorList) / sizeof(QString);
for (int i = 0; i < sampleList.length(); i++) {
QwtPlotCurve* curve = new QwtPlotCurve;
QVector<double>* data = new QVector<double>();
data->reserve(numSamples+1);
data->fill(0, numSamples);
QColor curveColor;
curveColor.setNamedColor(colorList[i % numColors]);
int blockNum = sampleList.at(i).refs.at(0).blockNum;
int pos = sampleList.at(i).refs.at(0).pos;
blockLabels_t label = kwp.getBlockLabel(blockNum);
QString desc = label.desc[pos] + " " + label.subDesc[pos];
curve->setRenderHint(QwtPlotItem::RenderAntialiased);
curve->setPen(curveColor);
curve->setTitle(desc);
curve->setRawSamples(timeAxis.constData(), data->constData(), numSamples);
curve->attach(ui->plot);
// set legend checked
QwtLegendItem *legendItem = qobject_cast<QwtLegendItem*>(ui->plot->legend()->find(curve));
if (legendItem) {
legendItem->setChecked(true);
}
curveAndData tmp;
tmp.curve = curve;
tmp.data = data;
curves.append(tmp);
}
}
//---------------------------------------------------------------------------
void JrkPlotDialog::showCurve(QwtPlotItem *item, bool on)
{
//qDebug("showCurve");
item->setVisible(on);
QwtLegendItem *legendItem =
qobject_cast<QwtLegendItem *>(ui->jrkPlot->legend()->find(item));
if(legendItem)
legendItem->setChecked(on);
//ui->jrkPlot->replot();
}
LevelOneMuChart::LevelOneMuChart(QWidget *parent)
: QwtPlot(parent)
{
setAutoReplot(false);
/* Panning with the left mouse button */
(void)new QwtPlotPanner(canvas());
/* Zoom in/out with the wheel */
(void)new QwtPlotMagnifier(canvas());
/* Picker */
plotPicker = new QwtPlotPicker(QwtPlot::xBottom,
QwtPlot::yLeft,
QwtPlotPicker::CrossRubberBand,
QwtPicker::AlwaysOn,
canvas());
plotPicker->setStateMachine(new QwtPickerDragPointMachine());
plotPicker->setRubberBandPen(QColor(Qt::blue));
plotPicker->setRubberBand(QwtPicker::CrossRubberBand);
plotPicker->setTrackerPen(QColor(Qt::black));
setAutoFillBackground(true);
setPalette(QPalette(QColor(199, 237, 255))); // Light Blue
updateWidgetGradient();
setTitle(tr("Chart of available deviations"));
/* Legend */
legend = new QwtLegend();
legend->setItemMode(QwtLegend::CheckableItem);
insertLegend(legend, QwtPlot::RightLegend);
/* Canvas Settings */
canvas()->setLineWidth(1);
canvas()->setFrameStyle(QFrame::Box | QFrame::Plain);
QPalette canvasPalette(Qt::white);
canvasPalette.setColor(QPalette::Foreground, QColor(133, 190, 232));
canvas()->setPalette(canvasPalette);
plotAssay();
/* Legend */
connect(this, SIGNAL(legendChecked(QwtPlotItem *, bool)),
SLOT(showItem(QwtPlotItem *, bool)));
QwtPlotItemList items = itemList(QwtPlotItem::Rtti_PlotCurve);
for (int i = 0; i < items.size(); i++)
{
if (i < 3)
{
QwtLegendItem *legendItem =
qobject_cast<QwtLegendItem *>(legend->find(items[i]));
if (legendItem)
{
legendItem->setChecked(true);
}
items[i]->setVisible(true);
}
else
{
items[i]->setVisible(false);
}
}
setAutoReplot(true);
}