/* -*- c++ -*- */
/*
 * Copyright 2012,2014 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 <gnuradio/qtgui/constellationdisplayform.h>

#include <QMessageBox>
#include <cmath>
#include <iostream>

ConstellationDisplayForm::ConstellationDisplayForm(int nplots, QWidget* parent)
    : DisplayForm(nplots, parent)
{
    d_int_validator = new QIntValidator(this);
    d_int_validator->setBottom(0);

    d_layout = new QGridLayout(this);
    d_display_plot = new ConstellationDisplayPlot(nplots, this);
    d_layout->addWidget(d_display_plot, 0, 0);
    setLayout(d_layout);

    d_nptsmenu = new NPointsMenu(this);
    d_menu->addAction(d_nptsmenu);
    connect(d_nptsmenu, SIGNAL(whichTrigger(int)), this, SLOT(setNPoints(const int)));

    // Set up the trigger menu
    d_triggermenu = new QMenu("Trigger", this);
    d_tr_mode_menu = new TriggerModeMenu(this);
    d_tr_slope_menu = new TriggerSlopeMenu(this);
    d_tr_level_act = new PopupMenu("Level", this);
    d_tr_channel_menu = new TriggerChannelMenu(nplots, this);
    d_tr_tag_key_act = new PopupMenu("Tag Key", this);
    d_triggermenu->addMenu(d_tr_mode_menu);
    d_triggermenu->addMenu(d_tr_slope_menu);
    d_triggermenu->addAction(d_tr_level_act);
    d_triggermenu->addMenu(d_tr_channel_menu);
    d_triggermenu->addAction(d_tr_tag_key_act);
    d_menu->addMenu(d_triggermenu);

    setTriggerMode(gr::qtgui::TRIG_MODE_FREE);
    connect(d_tr_mode_menu,
            SIGNAL(whichTrigger(gr::qtgui::trigger_mode)),
            this,
            SLOT(setTriggerMode(gr::qtgui::trigger_mode)));
    // updates trigger state by calling set level or set tag key.
    connect(d_tr_mode_menu,
            SIGNAL(whichTrigger(gr::qtgui::trigger_mode)),
            this,
            SLOT(updateTrigger(gr::qtgui::trigger_mode)));

    setTriggerSlope(gr::qtgui::TRIG_SLOPE_POS);
    connect(d_tr_slope_menu,
            SIGNAL(whichTrigger(gr::qtgui::trigger_slope)),
            this,
            SLOT(setTriggerSlope(gr::qtgui::trigger_slope)));

    setTriggerLevel(0);
    connect(d_tr_level_act,
            SIGNAL(whichTrigger(QString)),
            this,
            SLOT(setTriggerLevel(QString)));

    setTriggerChannel(0);
    connect(
        d_tr_channel_menu, SIGNAL(whichTrigger(int)), this, SLOT(setTriggerChannel(int)));

    setTriggerTagKey(std::string(""));
    connect(d_tr_tag_key_act,
            SIGNAL(whichTrigger(QString)),
            this,
            SLOT(setTriggerTagKey(QString)));

    Reset();

    connect(d_display_plot,
            SIGNAL(plotPointSelected(const QPointF)),
            this,
            SLOT(onPlotPointSelected(const QPointF)));
}

ConstellationDisplayForm::~ConstellationDisplayForm()
{
    // Qt deletes children when parent is deleted

    // Don't worry about deleting Display Plots - they are deleted when parents are
    // deleted
    delete d_int_validator;
}

ConstellationDisplayPlot* ConstellationDisplayForm::getPlot()
{
    return ((ConstellationDisplayPlot*)d_display_plot);
}

void ConstellationDisplayForm::newData(const QEvent* updateEvent)
{
    ConstUpdateEvent* tevent = (ConstUpdateEvent*)updateEvent;
    const std::vector<double*> realDataPoints = tevent->getRealPoints();
    const std::vector<double*> imagDataPoints = tevent->getImagPoints();
    const uint64_t numDataPoints = tevent->getNumDataPoints();

    getPlot()->plotNewData(realDataPoints, imagDataPoints, numDataPoints, d_update_time);
}

void ConstellationDisplayForm::customEvent(QEvent* e)
{
    if (e->type() == ConstUpdateEvent::Type()) {
        newData(e);
    }
}

int ConstellationDisplayForm::getNPoints() const { return d_npoints; }

void ConstellationDisplayForm::setNPoints(const int npoints) { d_npoints = npoints; }

void ConstellationDisplayForm::setYaxis(double min, double max)
{
    getPlot()->set_yaxis(min, max);
}

void ConstellationDisplayForm::setXaxis(double min, double max)
{
    getPlot()->set_xaxis(min, max);
}

void ConstellationDisplayForm::autoScale(bool en)
{
    d_autoscale_state = en;
    d_autoscale_act->setChecked(en);
    getPlot()->setAutoScale(d_autoscale_state);
    getPlot()->replot();
}

void ConstellationDisplayForm::setSampleRate(const QString& samprate) {}

/********************************************************************
 * TRIGGER METHODS
 *******************************************************************/

void ConstellationDisplayForm::setTriggerMode(gr::qtgui::trigger_mode mode)
{
    d_trig_mode = mode;
    d_tr_mode_menu->getAction(mode)->setChecked(true);
}

void ConstellationDisplayForm::updateTrigger(gr::qtgui::trigger_mode mode)
{
    // If auto or normal mode, popup trigger level box to set
    if ((d_trig_mode == gr::qtgui::TRIG_MODE_AUTO) ||
        (d_trig_mode == gr::qtgui::TRIG_MODE_NORM))
        d_tr_level_act->activate(QAction::Trigger);

    // if tag mode, popup tag key box to set
    if (d_trig_mode == gr::qtgui::TRIG_MODE_TAG)
        d_tr_tag_key_act->activate(QAction::Trigger);
}

gr::qtgui::trigger_mode ConstellationDisplayForm::getTriggerMode() const
{
    return d_trig_mode;
}

void ConstellationDisplayForm::setTriggerSlope(gr::qtgui::trigger_slope slope)
{
    d_trig_slope = slope;
    d_tr_slope_menu->getAction(slope)->setChecked(true);
}

gr::qtgui::trigger_slope ConstellationDisplayForm::getTriggerSlope() const
{
    return d_trig_slope;
}

void ConstellationDisplayForm::setTriggerLevel(QString s) { d_trig_level = s.toFloat(); }

void ConstellationDisplayForm::setTriggerLevel(float level)
{
    d_trig_level = level;
    d_tr_level_act->setText(QString().setNum(d_trig_level));
}

float ConstellationDisplayForm::getTriggerLevel() const { return d_trig_level; }

void ConstellationDisplayForm::setTriggerChannel(int channel)
{
    d_trig_channel = channel;
    d_tr_channel_menu->getAction(d_trig_channel)->setChecked(true);
}

int ConstellationDisplayForm::getTriggerChannel() const { return d_trig_channel; }

void ConstellationDisplayForm::setTriggerTagKey(QString s)
{
    d_trig_tag_key = s.toStdString();
}

void ConstellationDisplayForm::setTriggerTagKey(const std::string& key)
{
    d_trig_tag_key = key;
    d_tr_tag_key_act->setText(QString().fromStdString(d_trig_tag_key));
}

std::string ConstellationDisplayForm::getTriggerTagKey() const { return d_trig_tag_key; }
