CDisplayWindowPlots.cpp

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          https://www.mrpt.org/                         |
   |                                                                        |
   | Copyright (c) 2005-2020, Individual contributors, see AUTHORS file     |
   | See: https://www.mrpt.org/Authors - All rights reserved.               |
   | Released under BSD License. See: https://www.mrpt.org/License          |
   +------------------------------------------------------------------------+ */

#include "gui-precomp.h"  // Precompiled headers

#include <mrpt/config.h>
#include <mrpt/gui/CDisplayWindowPlots.h>
#include <mrpt/gui/WxSubsystem.h>
#include <mrpt/gui/WxUtils.h>
#include <mrpt/img/CImage.h>
#include <mrpt/math/utils.h>
#include <mrpt/system/os.h>
#include <cstring>

using namespace mrpt;
using namespace mrpt::gui;
using namespace mrpt::math;
using namespace mrpt::system;
using namespace std;
using mrpt::img::TPixelCoord;

#if MRPT_HAS_WXWIDGETS

BEGIN_EVENT_TABLE(CWindowDialogPlots, wxFrame)

END_EVENT_TABLE()

const long CWindowDialogPlots::ID_PLOT = wxNewId();
const long CWindowDialogPlots::ID_MENU_PRINT = wxNewId();
const long ID_MENUITEM1 = wxNewId();
const long ID_MENUITEM2 = wxNewId();

CWindowDialogPlots::CWindowDialogPlots(
    CDisplayWindowPlots* winPlots, WxSubsystem::CWXMainFrame* parent,
    wxWindowID id, const std::string& caption, wxSize initialSize)
    : m_winPlots(winPlots), m_mainFrame(parent), m_firstSubmenu(true)
{
    Create(
        parent, id, caption.c_str(), wxDefaultPosition, initialSize,
        wxDEFAULT_FRAME_STYLE, _T("id"));

    SetClientSize(initialSize);

    wxIcon FrameIcon;
    FrameIcon.CopyFromBitmap(mrpt::gui::WxSubsystem::getMRPTDefaultIcon());
    SetIcon(FrameIcon);

    // Create the mpWindow object:
    m_plot = new mpWindow(this, ID_PLOT);
    m_plot->AddLayer(new mpScaleX());
    m_plot->AddLayer(new mpScaleY());
    m_plot->LockAspect(false);
    m_plot->EnableDoubleBuffer(true);

    m_plot->Fit(-10, 10, -10, 10);

    // Menu:
    auto* MenuBar1 = new wxMenuBar();

    auto* Menu1 = new wxMenu();
    wxMenuItem* MenuItem1 =
        new wxMenuItem(Menu1, ID_MENUITEM1, _("Close"), _(""), wxITEM_NORMAL);
    Menu1->Append(MenuItem1);

    wxMenuItem* MenuItemPrint = new wxMenuItem(
        Menu1, ID_MENU_PRINT, _("Print..."), _(""), wxITEM_NORMAL);
    Menu1->Append(MenuItemPrint);

    MenuBar1->Append(Menu1, _("&File"));

    auto* Menu2 = new wxMenu();
    wxMenuItem* MenuItem2 = new wxMenuItem(
        Menu2, ID_MENUITEM2, _("About..."), _(""), wxITEM_NORMAL);
    Menu2->Append(MenuItem2);
    MenuBar1->Append(Menu2, _("&Help"));

    SetMenuBar(MenuBar1);

    // Events:
    Bind(wxEVT_CLOSE_WINDOW, &CWindowDialogPlots::OnClose, this, wxID_ANY);
    Bind(wxEVT_MENU, &CWindowDialogPlots::OnMenuClose, this, ID_MENUITEM1);
    Bind(wxEVT_MENU, &CWindowDialogPlots::OnMenuPrint, this, ID_MENU_PRINT);
    Bind(wxEVT_MENU, &CWindowDialogPlots::OnMenuAbout, this, ID_MENUITEM2);

    Bind(wxEVT_SIZE, &CWindowDialogPlots::OnResize, this, wxID_ANY);

    Bind(wxEVT_CHAR, &CWindowDialogPlots::OnChar, this, wxID_ANY);
    m_plot->Bind(wxEVT_CHAR, &CWindowDialogPlots::OnChar, this);
    m_plot->Bind(wxEVT_MOTION, &CWindowDialogPlots::OnMouseMove, this);

    m_plot->Bind(wxEVT_LEFT_DOWN, &CWindowDialogPlots::OnMouseDown, this);
    m_plot->Bind(wxEVT_RIGHT_DOWN, &CWindowDialogPlots::OnMouseDown, this);

    // Increment number of windows:
    // int winCount =
    WxSubsystem::CWXMainFrame::notifyWindowCreation();
    // this->Iconize(false);

#if 0
    // JL: TEST CODE: This is the seed of the future new implementation based on wxFreeChart...
    double data[][2] = {
            { 10, 20, },
            { 13, 16, },
            { 7, 30, },
            { 15, 34, },
            { 25, 4, },
    };
    // first step: create plot
    XYPlot *plot = new XYPlot();
    // create dataset
    XYSimpleDataset *dataset = new XYSimpleDataset();
    // and add serie to it
    dataset->AddSerie((double *) data, WXSIZEOF(data));
    // set line renderer to dataset
    dataset->SetRenderer(new XYLineRenderer());
    // add our dataset to plot
    plot->AddDataset(dataset);
    // create left and bottom number axes
    NumberAxis *leftAxis = new NumberAxis(AXIS_LEFT);
    NumberAxis *bottomAxis = new NumberAxis(AXIS_BOTTOM);
    // optional: set axis titles
    leftAxis->SetTitle(wxT("X"));
    bottomAxis->SetTitle(wxT("Y"));
    // add axes to plot
    plot->AddAxis(leftAxis);
    plot->AddAxis(bottomAxis);
    // link axes and dataset
    plot->LinkDataVerticalAxis(0, 0);
    plot->LinkDataHorizontalAxis(0, 0);
    // and finally create chart
    Chart* chart = new Chart(plot, wxT("my title"));
    wxChartPanel *m_chartPanel = new wxChartPanel( this ); //, ID_PLOT );
    m_chartPanel->SetChart( chart );
#endif
}

// Destructor
CWindowDialogPlots::~CWindowDialogPlots() = default;
// OnClose event:
void CWindowDialogPlots::OnClose(wxCloseEvent& event)
{
    // Send the event:
    bool allow_close = true;
    try
    {
        mrptEventWindowClosed ev(m_winPlots, true /* allow close */);
        m_winPlots->publishEvent(ev);
        allow_close = ev.allow_close;
    }
    catch (...)
    {
    }
    if (!allow_close) return;  // Don't process this close event.

    // Set the m_hwnd=nullptr in our parent object.
    m_winPlots->notifyChildWindowDestruction();

    // Decrement number of windows:
    WxSubsystem::CWXMainFrame::notifyWindowDestruction();

    // Signal we are destroyed:
    m_winPlots->m_windowDestroyed.set_value();

    event.Skip();  // keep processing by parent classes.
}

void CWindowDialogPlots::OnChar(wxKeyEvent& event)
{
    if (m_winPlots)
    {
        const int code = event.GetKeyCode();
        const mrptKeyModifier mod = mrpt::gui::keyEventToMrptKeyModifier(event);

        m_winPlots->m_keyPushedCode = code;
        m_winPlots->m_keyPushedModifier = mod;
        m_winPlots->m_keyPushed = true;
        // Send the event:
        try
        {
            m_winPlots->publishEvent(
                mrptEventWindowChar(m_winPlots, code, mod));
        }
        catch (...)
        {
        }
    }
    event.Skip();
}

void CWindowDialogPlots::OnResize(wxSizeEvent& event)
{
    // Send the event:
    if (m_winPlots)
    {
        try
        {
            m_winPlots->publishEvent(mrptEventWindowResize(
                m_winPlots, event.GetSize().GetWidth(),
                event.GetSize().GetHeight()));
        }
        catch (...)
        {
        }
    }
    event.Skip();  // so it's processed by the wx system!
}

void CWindowDialogPlots::OnMouseDown(wxMouseEvent& event)
{
    // Send the event:
    if (m_winPlots)
    {
        try
        {
            m_winPlots->publishEvent(mrptEventMouseDown(
                m_winPlots, TPixelCoord(event.GetX(), event.GetY()),
                event.LeftDown(), event.RightDown()));
        }
        catch (...)
        {
        }
    }
    event.Skip();  // so it's processed by the wx system!
}

// Menu: Close
void CWindowDialogPlots::OnMenuClose(wxCommandEvent& event) { Close(); }
// Menu: Print
void CWindowDialogPlots::OnMenuPrint(wxCommandEvent& event)
{
    m_plot->ShowPrintDialog();
}
// Menu: About
void CWindowDialogPlots::OnMenuAbout(wxCommandEvent& event)
{
    ::wxMessageBox(
        _("Plot viewer\n Class gui::CDisplayWindowPlots\n MRPT C++ & "
          "wxMathPlot library"),
        _("About..."));
}

void CWindowDialogPlots::OnMenuSelected(wxCommandEvent& ev)
{
    auto it = m_ID2ID.find(ev.GetId());
    if (it != m_ID2ID.end())
    {
        if (m_winPlots && m_winPlots->m_callback)
            m_winPlots->m_callback(
                it->second, d2f(m_curCursorPos.x), d2f(m_curCursorPos.y),
                m_winPlots->m_callback_param);
    }
}

void CWindowDialogPlots::OnMouseMove(wxMouseEvent& event)
{
    int X, Y;
    event.GetPosition(&X, &Y);
    m_curCursorPos.x = m_plot->p2x(X);
    m_curCursorPos.y = m_plot->p2y(Y);
    m_last_mouse_point.x = X;
    m_last_mouse_point.y = Y;

    // Send the event:
    if (m_winPlots && m_winPlots->hasSubscribers())
    {
        try
        {
            m_winPlots->publishEvent(mrptEventMouseMove(
                m_winPlots, mrpt::img::TPixelCoord(event.GetX(), event.GetY()),
                event.LeftDown(), event.RightDown()));
        }
        catch (...)
        {
        }
    }
    event.Skip();  // so it's processed by the wx system!
}

// Add / Modify a 2D plot using a MATLAB-like format string
void CWindowDialogPlots::plot(
    const CVectorFloat& x, const CVectorFloat& y, const std::string& lineFormat,
    const std::string& plotName)
{
    mpFXYVector* theLayer;

    wxString lyName = plotName.c_str();
    bool updateAtTheEnd = false;  // If we update an existing layer, update
    // manually to refresh the changes!

    // Already existing layer?
    mpLayer* existingLy = m_plot->GetLayerByName(lyName);

    if (existingLy)
    {
        // Assure the class:
        auto* lyPlot2D = dynamic_cast<mpFXYVector*>(existingLy);

        if (!lyPlot2D)
        {
            cerr << "[CWindowDialogPlots::plot] Plot name '" << plotName
                 << "' is not of expected class mpFXYVector!." << endl;
            return;
        }

        // Ok:
        theLayer = lyPlot2D;
        updateAtTheEnd = true;
    }
    else
    {
        // Create it:
        theLayer = new mpFXYVector(lyName);
        m_plot->AddLayer(theLayer);
    }

    // Set data:
    {
        std::vector<float> x_(x.size()), y_(x.size());
        std::memcpy(&x_[0], &x[0], sizeof(x[0]) * x_.size());
        std::memcpy(&y_[0], &y[0], sizeof(y[0]) * y_.size());
        theLayer->SetData(x_, y_);
    }

    // Line style:
    // -------------------
    bool isContinuous = true;
    int lineColor[] = {0, 0, 255};
    int lineWidth = 1;
    wxPenStyle lineStyle = wxPENSTYLE_SOLID;

    // parse string:
    if (string::npos != lineFormat.find("."))
    {
        isContinuous = false;
    }
    if (string::npos != lineFormat.find("-"))
    {
        isContinuous = true;
        lineStyle = wxPENSTYLE_SOLID;
    }
    if (string::npos != lineFormat.find(":"))
    {
        isContinuous = true;
        lineStyle = wxPENSTYLE_LONG_DASH;
    }

    if (string::npos != lineFormat.find("r"))
    {
        lineColor[0] = 0xFF;
        lineColor[1] = 0x00;
        lineColor[2] = 0x00;
    }
    if (string::npos != lineFormat.find("g"))
    {
        lineColor[0] = 0x00;
        lineColor[1] = 0xFF;
        lineColor[2] = 0x00;
    }
    if (string::npos != lineFormat.find("b"))
    {
        lineColor[0] = 0x00;
        lineColor[1] = 0x00;
        lineColor[2] = 0xFF;
    }
    if (string::npos != lineFormat.find("k"))
    {
        lineColor[0] = 0x00;
        lineColor[1] = 0x00;
        lineColor[2] = 0x00;
    }
    if (string::npos != lineFormat.find("m"))
    {
        lineColor[0] = 192;
        lineColor[1] = 0;
        lineColor[2] = 192;
    }
    if (string::npos != lineFormat.find("c"))
    {
        lineColor[0] = 0;
        lineColor[1] = 192;
        lineColor[2] = 192;
    }

    if (string::npos != lineFormat.find("1"))
    {
        lineWidth = 1;
    }
    if (string::npos != lineFormat.find("2"))
    {
        lineWidth = 2;
    }
    if (string::npos != lineFormat.find("3"))
    {
        lineWidth = 3;
    }
    if (string::npos != lineFormat.find("4"))
    {
        lineWidth = 4;
    }
    if (string::npos != lineFormat.find("5"))
    {
        lineWidth = 5;
    }
    if (string::npos != lineFormat.find("6"))
    {
        lineWidth = 6;
    }
    if (string::npos != lineFormat.find("7"))
    {
        lineWidth = 7;
    }
    if (string::npos != lineFormat.find("8"))
    {
        lineWidth = 8;
    }
    if (string::npos != lineFormat.find("9"))
    {
        lineWidth = 9;
    }

    theLayer->SetContinuity(isContinuous);

    wxPen pen(
        wxColour(lineColor[0], lineColor[1], lineColor[2]), lineWidth,
        lineStyle);
    theLayer->SetPen(pen);

    theLayer->ShowName(false);

    if (updateAtTheEnd) m_plot->Refresh(false);
}

// Add / Modify a 2D ellipse
// x[0,1]: Mean
// y[0,1,2]: Covariance matrix (0,0),(1,1),(0,1)
void CWindowDialogPlots::plotEllipse(
    const CVectorFloat& x, const CVectorFloat& y, const std::string& lineFormat,
    const std::string& plotName, bool showName)
{
    mpCovarianceEllipse* theLayer;

    if (x.size() != 3 || y.size() != 3)
    {
        cerr << "[CWindowDialogPlots::plotEllipse] vectors do not have "
                "expected size!!"
             << endl;
        return;
    }

    wxString lyName = plotName.c_str();
    bool updateAtTheEnd = false;  // If we update an existing layer, update
    // manually to refresh the changes!

    // Already existing layer?
    mpLayer* existingLy = m_plot->GetLayerByName(lyName);

    if (existingLy)
    {
        // Assure the class:
        auto* lyPlotEllipse = dynamic_cast<mpCovarianceEllipse*>(existingLy);

        if (!lyPlotEllipse)
        {
            cerr << "[CWindowDialogPlots::plotEllipse] Plot name '" << plotName
                 << "' is not of expected class mpCovarianceEllipse!." << endl;
            return;
        }

        // Ok:
        theLayer = lyPlotEllipse;
        updateAtTheEnd = true;
    }
    else
    {
        // Create it:
        theLayer = new mpCovarianceEllipse(1, 1, 0, 2, 32, lyName);
        m_plot->AddLayer(theLayer);
    }

    // Set data:
    theLayer->SetCovarianceMatrix(y[0], y[2], y[1]);
    theLayer->SetCoordinateBase(x[0], x[1]);
    theLayer->SetQuantiles(x[2]);
    theLayer->ShowName(showName);

    // Line style:
    // -------------------
    bool isContinuous = true;
    int lineColor[] = {0, 0, 255};
    int lineWidth = 1;
    wxPenStyle lineStyle = wxPENSTYLE_SOLID;

    // parse string:
    if (string::npos != lineFormat.find("."))
    {
        isContinuous = false;
    }
    if (string::npos != lineFormat.find("-"))
    {
        isContinuous = true;
        lineStyle = wxPENSTYLE_SOLID;
    }
    if (string::npos != lineFormat.find(":"))
    {
        isContinuous = true;
        lineStyle = wxPENSTYLE_LONG_DASH;
    }

    if (string::npos != lineFormat.find("r"))
    {
        lineColor[0] = 0xFF;
        lineColor[1] = 0x00;
        lineColor[2] = 0x00;
    }
    if (string::npos != lineFormat.find("g"))
    {
        lineColor[0] = 0x00;
        lineColor[1] = 0xFF;
        lineColor[2] = 0x00;
    }
    if (string::npos != lineFormat.find("b"))
    {
        lineColor[0] = 0x00;
        lineColor[1] = 0x00;
        lineColor[2] = 0xFF;
    }
    if (string::npos != lineFormat.find("k"))
    {
        lineColor[0] = 0x00;
        lineColor[1] = 0x00;
        lineColor[2] = 0x00;
    }
    if (string::npos != lineFormat.find("m"))
    {
        lineColor[0] = 192;
        lineColor[1] = 0;
        lineColor[2] = 192;
    }
    if (string::npos != lineFormat.find("c"))
    {
        lineColor[0] = 0;
        lineColor[1] = 192;
        lineColor[2] = 192;
    }

    if (string::npos != lineFormat.find("1"))
    {
        lineWidth = 1;
    }
    if (string::npos != lineFormat.find("2"))
    {
        lineWidth = 2;
    }
    if (string::npos != lineFormat.find("3"))
    {
        lineWidth = 3;
    }
    if (string::npos != lineFormat.find("4"))
    {
        lineWidth = 4;
    }
    if (string::npos != lineFormat.find("5"))
    {
        lineWidth = 5;
    }
    if (string::npos != lineFormat.find("6"))
    {
        lineWidth = 6;
    }
    if (string::npos != lineFormat.find("7"))
    {
        lineWidth = 7;
    }
    if (string::npos != lineFormat.find("8"))
    {
        lineWidth = 8;
    }
    if (string::npos != lineFormat.find("9"))
    {
        lineWidth = 9;
    }

    theLayer->SetContinuity(isContinuous);

    wxPen pen(
        wxColour(lineColor[0], lineColor[1], lineColor[2]), lineWidth,
        lineStyle);
    theLayer->SetPen(pen);

    if (updateAtTheEnd) m_plot->Refresh(false);
}

void CWindowDialogPlots::image(
    void* theWxImage, float x0, float y0, float w, float h,
    const std::string& plotName)
{
    mpBitmapLayer* theLayer;

    wxString lyName = plotName.c_str();
    bool updateAtTheEnd = false;  // If we update an existing layer, update
    // manually to refresh the changes!

    // Already existing layer?
    mpLayer* existingLy = m_plot->GetLayerByName(lyName);

    if (existingLy)
    {
        // Assure the class:
        auto* ly = dynamic_cast<mpBitmapLayer*>(existingLy);

        if (!ly)
        {
            cerr << "[CWindowDialogPlots::image] Plot name '" << plotName
                 << "' is not of expected class mpBitmapLayer!." << endl;
            return;
        }

        // Ok:
        theLayer = ly;
        updateAtTheEnd = true;
    }
    else
    {
        // Create it:
        theLayer = new mpBitmapLayer();
        m_plot->AddLayer(theLayer);
    }

    // Set data:
    auto* ii = static_cast<wxImage*>(theWxImage);
    theLayer->SetBitmap(*ii, x0, y0, w, h);

    delete ii;
    theWxImage = nullptr;

    if (updateAtTheEnd) m_plot->Refresh();
}

#endif

CDisplayWindowPlots::Ptr CDisplayWindowPlots::Create(
    const std::string& windowCaption, unsigned int initialWindowWidth,
    unsigned int initialWindowHeight)
{
    return std::make_shared<CDisplayWindowPlots>(
        windowCaption, initialWindowWidth, initialWindowHeight);
}
/*---------------------------------------------------------------
                    Constructor
 ---------------------------------------------------------------*/
CDisplayWindowPlots::CDisplayWindowPlots(
    const std::string& windowCaption, unsigned int initialWidth,
    unsigned int initialHeight)
    : CBaseGUIWindow(static_cast<void*>(this), 400, 499, windowCaption)

{
    CBaseGUIWindow::createWxWindow(initialWidth, initialHeight);
}

/*---------------------------------------------------------------
                    Destructor
 ---------------------------------------------------------------*/
CDisplayWindowPlots::~CDisplayWindowPlots()
{
    CBaseGUIWindow::destroyWxWindow();
}

/** Set cursor style to default (cursorIsCross=false) or to a cross
 * (cursorIsCross=true) */
void CDisplayWindowPlots::setCursorCross([[maybe_unused]] bool cursorIsCross)
{
#if MRPT_HAS_WXWIDGETS && MRPT_HAS_OPENGL_GLUT
    const auto* win = (const CWindowDialogPlots*)m_hwnd.get();
    if (!win) return;
    win->m_plot->SetCursor(
        *(cursorIsCross ? wxCROSS_CURSOR : wxSTANDARD_CURSOR));
#endif
}

/*---------------------------------------------------------------
                    getLastMousePosition
 ---------------------------------------------------------------*/
bool CDisplayWindowPlots::getLastMousePosition(
    [[maybe_unused]] int& x, [[maybe_unused]] int& y) const
{
#if MRPT_HAS_WXWIDGETS && MRPT_HAS_OPENGL_GLUT
    const auto* win = (const CWindowDialogPlots*)m_hwnd.get();
    if (!win) return false;
    x = win->m_last_mouse_point.x;
    y = win->m_last_mouse_point.y;
    return true;
#else
    return false;
#endif
}

/*---------------------------------------------------------------
                    resize
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::resize(
    [[maybe_unused]] unsigned int width, [[maybe_unused]] unsigned int height)
{
#if MRPT_HAS_WXWIDGETS
    if (!isOpen())
    {
        cerr << "[CDisplayWindowPlots::resize] Window closed!: " << m_caption
             << endl;
        return;
    }

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 403;
    REQ->x = width;
    REQ->y = height;
    WxSubsystem::pushPendingWxRequest(REQ);
#endif
}

/*---------------------------------------------------------------
                    setPos
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::setPos([[maybe_unused]] int x, [[maybe_unused]] int y)
{
#if MRPT_HAS_WXWIDGETS
    if (!isOpen())
    {
        cerr << "[CDisplayWindowPlots::setPos] Window closed!: " << m_caption
             << endl;
        return;
    }

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 402;
    REQ->x = x;
    REQ->y = y;
    WxSubsystem::pushPendingWxRequest(REQ);
#endif
}

/*---------------------------------------------------------------
                    setWindowTitle
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::setWindowTitle([
    [maybe_unused]] const std::string& str)
{
#if MRPT_HAS_WXWIDGETS
    if (!isOpen())
    {
        cerr << "[CDisplayWindowPlots::setWindowTitle] Window closed!: "
             << m_caption << endl;
        return;
    }

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 404;
    REQ->str = str;
    WxSubsystem::pushPendingWxRequest(REQ);
#endif
}

/*---------------------------------------------------------------
                    enableMousePanZoom
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::enableMousePanZoom([[maybe_unused]] bool enabled)
{
#if MRPT_HAS_WXWIDGETS
    if (!isOpen()) return;

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 410;
    REQ->boolVal = enabled;
    WxSubsystem::pushPendingWxRequest(REQ);
#endif
}

/*---------------------------------------------------------------
                    axis_equal
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::axis_equal([[maybe_unused]] bool enabled)
{
#if MRPT_HAS_WXWIDGETS
    if (!isOpen()) return;

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 411;
    REQ->boolVal = enabled;
    WxSubsystem::pushPendingWxRequest(REQ);
#endif
}

/*---------------------------------------------------------------
                    axis
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::axis(
    [[maybe_unused]] float x_min, [[maybe_unused]] float x_max,
    [[maybe_unused]] float y_min, [[maybe_unused]] float y_max,
    [[maybe_unused]] bool aspectRatioFix)
{
#if MRPT_HAS_WXWIDGETS
    if (!isOpen()) return;

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 412;
    REQ->vector_x.resize(2);
    REQ->vector_x[0] = x_min;
    REQ->vector_x[1] = x_max;
    REQ->vector_y.resize(2);
    REQ->vector_y[0] = y_min;
    REQ->vector_y[1] = y_max;
    REQ->boolVal = aspectRatioFix;
    WxSubsystem::pushPendingWxRequest(REQ);
#endif
}

/*---------------------------------------------------------------
                    axis_fit
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::axis_fit([[maybe_unused]] bool aspectRatioFix)
{
#if MRPT_HAS_WXWIDGETS
    if (!isOpen()) return;

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 413;
    REQ->boolVal = aspectRatioFix;
    WxSubsystem::pushPendingWxRequest(REQ);
#endif
}

/*---------------------------------------------------------------
                    plotEllipse
 ---------------------------------------------------------------*/
template <typename T>
void CDisplayWindowPlots::plotEllipse(
    [[maybe_unused]] const T mean_x, [[maybe_unused]] const T mean_y,
    [[maybe_unused]] const CMatrixDynamic<T>& cov22,
    [[maybe_unused]] const float quantiles,
    [[maybe_unused]] const std::string& lineFormat,
    [[maybe_unused]] const std::string& plotName,
    [[maybe_unused]] bool showName)
{
#if MRPT_HAS_WXWIDGETS
    MRPT_START
    if (!isOpen()) return;

    ASSERT_(cov22.cols() == 2 && cov22.rows() == 2);
    ASSERT_(cov22(0, 0) >= 0);
    ASSERT_(cov22(1, 1) >= 0);
    ASSERT_(cov22(0, 1) == cov22(1, 0));

    if (m_holdon_just_disabled)
    {
        m_holdon_just_disabled = false;
        this->clf();
    }
    std::string holdon_post;
    if (m_holdon)
        holdon_post =
            format("_fig_%u", static_cast<unsigned int>(m_holdon_cnt++));

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 421;
    // 421: Add/update a 2D ellipse: format string=str, plot name =plotName,
    // vector_x[0,1]:X/Y center,  vector_y[0,1,2]: Covariance matrix entries
    // 00,11,01.
    REQ->str = lineFormat;
    REQ->plotName = plotName + holdon_post;

    REQ->vector_x.resize(3);
    REQ->vector_x[0] = d2f(mean_x);
    REQ->vector_x[1] = d2f(mean_y);
    REQ->vector_x[2] = quantiles;

    REQ->vector_y.resize(3);
    REQ->vector_y[0] = d2f(cov22(0, 0));
    REQ->vector_y[1] = d2f(cov22(1, 1));
    REQ->vector_y[2] = d2f(cov22(0, 1));

    REQ->boolVal = showName;

    WxSubsystem::pushPendingWxRequest(REQ);
    MRPT_END
#endif
}

// Explicit instantations:
template void CDisplayWindowPlots::plotEllipse(
    const float mean_x, const float mean_y, const CMatrixDynamic<float>& cov22,
    const float quantiles, const std::string& lineFormat,
    const std::string& plotName, bool showName);
template void CDisplayWindowPlots::plotEllipse(
    const double mean_x, const double mean_y,
    const CMatrixDynamic<double>& cov22, const float quantiles,
    const std::string& lineFormat, const std::string& plotName, bool showName);

/*---------------------------------------------------------------
                    plotEllipse
 ---------------------------------------------------------------*/
template <typename T>
void CDisplayWindowPlots::plotEllipse(
    [[maybe_unused]] const T mean_x, [[maybe_unused]] const T mean_y,
    [[maybe_unused]] const CMatrixFixed<T, 2, 2>& cov22,
    [[maybe_unused]] const float quantiles,
    [[maybe_unused]] const std::string& lineFormat,
    [[maybe_unused]] const std::string& plotName,
    [[maybe_unused]] bool showName)
{
#if MRPT_HAS_WXWIDGETS
    MRPT_START
    if (!isOpen()) return;

    ASSERT_(cov22(0, 0) >= 0);
    ASSERT_(cov22(1, 1) >= 0);
    ASSERT_(cov22(0, 1) == cov22(1, 0));

    if (m_holdon_just_disabled)
    {
        m_holdon_just_disabled = false;
        this->clf();
    }
    std::string holdon_post;
    if (m_holdon)
        holdon_post =
            format("_fig_%u", static_cast<unsigned int>(m_holdon_cnt++));

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 421;
    // 421: Add/update a 2D ellipse: format string=str, plot name =plotName,
    // vector_x[0,1]:X/Y center,  vector_y[0,1,2]: Covariance matrix entries
    // 00,11,01.
    REQ->str = lineFormat;
    REQ->plotName = plotName + holdon_post;

    REQ->vector_x.resize(3);
    REQ->vector_x[0] = d2f(mean_x);
    REQ->vector_x[1] = d2f(mean_y);
    REQ->vector_x[2] = quantiles;

    REQ->vector_y.resize(3);
    REQ->vector_y[0] = d2f(cov22(0, 0));
    REQ->vector_y[1] = d2f(cov22(1, 1));
    REQ->vector_y[2] = d2f(cov22(0, 1));

    REQ->boolVal = showName;

    WxSubsystem::pushPendingWxRequest(REQ);
    MRPT_END
#endif
}

// Explicit instantations:
template void CDisplayWindowPlots::plotEllipse(
    const float mean_x, const float mean_y,
    const CMatrixFixed<float, 2, 2>& cov22, const float quantiles,
    const std::string& lineFormat, const std::string& plotName, bool showName);
template void CDisplayWindowPlots::plotEllipse(
    const double mean_x, const double mean_y,
    const CMatrixFixed<double, 2, 2>& cov22, const float quantiles,
    const std::string& lineFormat, const std::string& plotName, bool showName);

/*---------------------------------------------------------------
                    image
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::image(
    [[maybe_unused]] const mrpt::img::CImage& img,
    [[maybe_unused]] float x_left, [[maybe_unused]] float y_bottom,
    [[maybe_unused]] float x_width, [[maybe_unused]] float y_height,
    [[maybe_unused]] const std::string& plotName)
{
#if MRPT_HAS_WXWIDGETS
    MRPT_START
    if (!isOpen()) return;

    if (m_holdon_just_disabled)
    {
        m_holdon_just_disabled = false;
        this->clf();
    }
    std::string holdon_post;
    if (m_holdon)
        holdon_post =
            format("_fig_%u", static_cast<unsigned int>(m_holdon_cnt++));

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 422;

    // 422: Add/update a bitmap: plot name =plotName, vector_x[0,1]:X/Y corner,
    // vector_x[2,3]: X/Y widths, voidPtr2: pointer to a newly created wxImage
    // with the bitmap.
    REQ->plotName = plotName + holdon_post;

    REQ->vector_x.resize(4);
    REQ->vector_x[0] = x_left;
    REQ->vector_x[1] = y_bottom;
    REQ->vector_x[2] = x_width;
    REQ->vector_x[3] = y_height;

    REQ->voidPtr2 = mrpt::gui::MRPTImage2wxImage(img);

    WxSubsystem::pushPendingWxRequest(REQ);
    MRPT_END
#endif
}

/*---------------------------------------------------------------
                    internal_plot
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::internal_plot(
    [[maybe_unused]] CVectorFloat& x, [[maybe_unused]] CVectorFloat& y,
    [[maybe_unused]] const std::string& lineFormat,
    [[maybe_unused]] const std::string& plotName)
{
#if MRPT_HAS_WXWIDGETS
    MRPT_START
    if (!isOpen()) return;

    ASSERT_EQUAL_(x.size(), y.size());

    if (m_holdon_just_disabled)
    {
        m_holdon_just_disabled = false;
        this->clf();
    }

    if (x.empty()) return;

    std::string holdon_post;
    if (m_holdon)
        holdon_post =
            format("_fig_%u", static_cast<unsigned int>(m_holdon_cnt++));

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 420;
    REQ->str = lineFormat;
    REQ->plotName = plotName + holdon_post;
    REQ->vector_x.swap(x);
    REQ->vector_y.swap(y);

    WxSubsystem::pushPendingWxRequest(REQ);
    MRPT_END
#endif
}

/*---------------------------------------------------------------
                    clear
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::clear()
{
    MRPT_START
#if MRPT_HAS_WXWIDGETS
    if (!isOpen()) return;

    // Send a request to destroy this object:
    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 414;

    // 414: Clear all plot objects.

    WxSubsystem::pushPendingWxRequest(REQ);
#endif
    MRPT_END
}

/*---------------------------------------------------------------
                    hold_on
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::hold_on() { m_holdon = true; }
/*---------------------------------------------------------------
                    hold_off
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::hold_off()
{
    if (m_holdon)
    {
        m_holdon = false;
        m_holdon_just_disabled = true;
    }
}

/*---------------------------------------------------------------
                    addPopupMenuEntry
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::addPopupMenuEntry(
    [[maybe_unused]] const std::string& label, [[maybe_unused]] int menuID)
{
#if MRPT_HAS_WXWIDGETS
    MRPT_START
    if (!isOpen()) return;

    auto* REQ = new WxSubsystem::TRequestToWxMainThread[1];
    REQ->sourcePlots = this;
    REQ->OPCODE = 440;
    REQ->plotName = label;
    REQ->x = menuID;
    // 440: Inser submenu in the popup menu.

    WxSubsystem::pushPendingWxRequest(REQ);
    MRPT_END
#endif
}

/*---------------------------------------------------------------
                    setMenuCallback
 ---------------------------------------------------------------*/
void CDisplayWindowPlots::setMenuCallback(
    TCallbackMenu userFunction, void* userParam)
{
    ASSERT_(userFunction != nullptr);
    m_callback = userFunction;
    m_callback_param = userParam;
}