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Diffstat (limited to 'gr-qtgui/lib/DisplayPlot.cc')
| -rw-r--r-- | gr-qtgui/lib/DisplayPlot.cc | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/gr-qtgui/lib/DisplayPlot.cc b/gr-qtgui/lib/DisplayPlot.cc new file mode 100644 index 0000000000..ca3f7899be --- /dev/null +++ b/gr-qtgui/lib/DisplayPlot.cc @@ -0,0 +1,248 @@ +/* -*- c++ -*- */ +/* + * Copyright 2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#include <DisplayPlot.h> + +#include <qwt_scale_draw.h> +#include <qwt_legend.h> +#include <QColor> +#include <cmath> +#include <iostream> + +DisplayPlot::DisplayPlot(int nplots, QWidget* parent) + : QwtPlot(parent), _nplots(nplots), _stop(false) +{ + resize(parent->width(), parent->height()); + + // Disable polygon clipping +#if QWT_VERSION < 0x060000 + QwtPainter::setDeviceClipping(false); +#else + QwtPainter::setPolylineSplitting(false); +#endif + +#if QWT_VERSION < 0x060000 + // We don't need the cache here + canvas()->setPaintAttribute(QwtPlotCanvas::PaintCached, false); + canvas()->setPaintAttribute(QwtPlotCanvas::PaintPacked, false); +#endif + + QPalette palette; + palette.setColor(canvas()->backgroundRole(), QColor("white")); + canvas()->setPalette(palette); + + _panner = new QwtPlotPanner(canvas()); + _panner->setAxisEnabled(QwtPlot::yRight, false); + _panner->setMouseButton(Qt::MidButton); + + // emit the position of clicks on widget + _picker = new QwtDblClickPlotPicker(canvas()); + +#if QWT_VERSION < 0x060000 + connect(_picker, SIGNAL(selected(const QwtDoublePoint &)), + this, SLOT(OnPickerPointSelected(const QwtDoublePoint &))); +#else + _picker->setStateMachine(new QwtPickerDblClickPointMachine()); + connect(_picker, SIGNAL(selected(const QPointF &)), + this, SLOT(OnPickerPointSelected6(const QPointF &))); +#endif + + // Configure magnify on mouse wheel + _magnifier = new QwtPlotMagnifier(canvas()); + _magnifier->setAxisEnabled(QwtPlot::xBottom, false); + + // Avoid jumping when labels with more/less digits + // appear/disappear when scrolling vertically + + const QFontMetrics fm(axisWidget(QwtPlot::yLeft)->font()); + QwtScaleDraw *sd = axisScaleDraw(QwtPlot::yLeft); + sd->setMinimumExtent( fm.width("100.00") ); + + QwtLegend* legendDisplay = new QwtLegend(this); + legendDisplay->setItemMode(QwtLegend::CheckableItem); + insertLegend(legendDisplay); + + connect(this, SIGNAL(legendChecked(QwtPlotItem *, bool)), + this, SLOT(LegendEntryChecked(QwtPlotItem *, bool))); +} + +DisplayPlot::~DisplayPlot() +{ + // _zoomer and _panner deleted when parent deleted +} + +void +DisplayPlot::setYaxis(double min, double max) +{ + setAxisScale(QwtPlot::yLeft, min, max); + _zoomer->setZoomBase(); +} + +void +DisplayPlot::setXaxis(double min, double max) +{ + setAxisScale(QwtPlot::xBottom, min, max); + _zoomer->setZoomBase(); +} + +void +DisplayPlot::setTitle(int which, QString title) +{ + _plot_curve[which]->setTitle(title); +} + +QString +DisplayPlot::title(int which) +{ + return _plot_curve[which]->title().text(); +} + +void +DisplayPlot::setColor(int which, QString color) +{ + // Set the color of the pen + QPen pen(_plot_curve[which]->pen()); + pen.setColor(color); + _plot_curve[which]->setPen(pen); + + // And set the color of the markers +#if QWT_VERSION < 0x060000 + //_plot_curve[which]->setBrush(QBrush(QColor(color))); + _plot_curve[which]->setPen(pen); + + QwtSymbol sym = (QwtSymbol)_plot_curve[which]->symbol(); + setLineMarker(which, sym.style()); +#else + QwtSymbol *sym = (QwtSymbol*)_plot_curve[which]->symbol(); + sym->setColor(color); + sym->setPen(pen); + _plot_curve[which]->setSymbol(sym); +#endif +} + +void +DisplayPlot::setLineWidth(int which, int width) +{ + // Set the new line width + QPen pen(_plot_curve[which]->pen()); + pen.setWidth(width); + _plot_curve[which]->setPen(pen); + + // Scale the marker size proportionally +#if QWT_VERSION < 0x060000 + QwtSymbol sym = (QwtSymbol)_plot_curve[which]->symbol(); + sym.setSize(7+10*log10(1.0*width), 7+10*log10(1.0*width)); + _plot_curve[which]->setSymbol(sym); +#else + QwtSymbol *sym = (QwtSymbol*)_plot_curve[which]->symbol(); + sym->setSize(7+10*log10(1.0*width), 7+10*log10(1.0*width)); + _plot_curve[which]->setSymbol(sym); +#endif +} + +void +DisplayPlot::setLineStyle(int which, Qt::PenStyle style) +{ + QPen pen(_plot_curve[which]->pen()); + pen.setStyle(style); + _plot_curve[which]->setPen(pen); +} + +void +DisplayPlot::setLineMarker(int which, QwtSymbol::Style marker) +{ +#if QWT_VERSION < 0x060000 + QwtSymbol sym = (QwtSymbol)_plot_curve[which]->symbol(); + QPen pen(_plot_curve[which]->pen()); + QBrush brush(pen.color()); + sym.setStyle(marker); + sym.setPen(pen); + sym.setBrush(brush); + _plot_curve[which]->setSymbol(sym); +#else + QwtSymbol *sym = (QwtSymbol*)_plot_curve[which]->symbol(); + sym->setStyle(marker); + _plot_curve[which]->setSymbol(sym); +#endif +} + +void +DisplayPlot::setMarkerAlpha(int which, int alpha) +{ + // Get the pen color + QPen pen(_plot_curve[which]->pen()); + QColor color = pen.color(); + + // Set new alpha and update pen + color.setAlpha(alpha); + pen.setColor(color); + _plot_curve[which]->setPen(pen); + + // And set the new color for the markers +#if QWT_VERSION < 0x060000 + //_plot_curve[which]->setBrush(QBrush(QColor(color))); + _plot_curve[which]->setPen(pen); + + QwtSymbol sym = (QwtSymbol)_plot_curve[which]->symbol(); + setLineMarker(which, sym.style()); +#else + QwtSymbol *sym = (QwtSymbol*)_plot_curve[which]->symbol(); + sym->setColor(color); + sym->setPen(pen); + _plot_curve[which]->setSymbol(sym); +#endif +} + +void +DisplayPlot::setStop(bool on) +{ + _stop = on; +} + +void +DisplayPlot::resizeSlot( QSize *s ) +{ + // -10 is to spare some room for the legend and x-axis label + resize(s->width()-10, s->height()-10); +} + +void DisplayPlot::LegendEntryChecked(QwtPlotItem* plotItem, bool on) +{ + plotItem->setVisible(!on); + replot(); +} + +void +DisplayPlot::OnPickerPointSelected(const QwtDoublePoint & p) +{ + QPointF point = p; + //fprintf(stderr,"OnPickerPointSelected %f %f\n", point.x(), point.y()); + emit plotPointSelected(point); +} + +void +DisplayPlot::OnPickerPointSelected6(const QPointF & p) +{ + QPointF point = p; + //fprintf(stderr,"OnPickerPointSelected %f %f\n", point.x(), point.y()); + emit plotPointSelected(point); +} |