Promote to ..

[fantom]

Hallo all,

I manage to adapt the tvplot example in my app. It works ok and i can see the plot. My issue now is to see the plot included in an already implemented dialog box. I read this has to be done via promote widget but when i promote to my Plot class i get many errors. Please i need urgently some help .

Find below the code of the cpp and h file of the plot

cpp

#include <stdlib.h>
#include <qpen.h>
#include <qwt_plot_layout.h>
#include <qwt_legend.h>
#include <qwt_legend_item.h>
#include <qwt_plot_grid.h>
#include <qwt_plot_histogram.h>
#include <qwt_column_symbol.h>
#include <qwt_series_data.h>
#include "plot.h"
 
class Histogram: public QwtPlotHistogram
{
public:
    Histogram(const QString &, const QColor &);
 
    void setColor(const QColor &);
    void setValues(uint numValues, char *);
};
 
Histogram::Histogram(const QString &title, const QColor &symbolColor):
    QwtPlotHistogram(title)
{
    setStyle(QwtPlotHistogram::Columns);
 
    setColor(symbolColor);
}
 
void Histogram::setColor(const QColor &symbolColor)
{
    QColor color = symbolColor;
    color.setAlpha(180);
 
    setPen(QPen(Qt::black));
    setBrush(QBrush(color));
 
    QwtColumnSymbol *symbol = new QwtColumnSymbol(QwtColumnSymbol::Box);
    symbol->setFrameStyle(QwtColumnSymbol::Raised);
    symbol->setLineWidth(2);
    symbol->setPalette(QPalette(color));
    setSymbol(symbol);
}
 
void Histogram::setValues(uint numValues, char *values)
{
    QVector<QwtIntervalSample> samples(numValues);
    for ( uint i = 0; i < numValues; i++ )
    {
        QwtInterval interval(double(i), i + 1.0);
        interval.setBorderFlags(QwtInterval::ExcludeMaximum);
 
        samples[i] = QwtIntervalSample(values[i], interval);
    }
 
    setData(new QwtIntervalSeriesData(samples));
}
 
Plot::Plot(QWidget *parent):
    QwtPlot(parent)
{
    setTitle("Patient Adherence");
 
    setCanvasBackground(QColor(Qt::gray));
    plotLayout()->setAlignCanvasToScales(true);
 
    setAxisTitle(QwtPlot::yLeft, "Probability(%)");
    setAxisTitle(QwtPlot::xBottom, "Adherence");
 
    QwtLegend *legend = new QwtLegend;
    legend->setItemMode(QwtLegend::CheckableItem);
    insertLegend(legend, QwtPlot::RightLegend);
 
    populate();
 
//    connect(this, SIGNAL(legendChecked(QwtPlotItem *, bool)),
       // SLOT(showItem(QwtPlotItem *, bool)));
 
    replot(); // creating the legend items
 
    QwtPlotItemList items = itemList(QwtPlotItem::Rtti_PlotHistogram);
    for ( int i = 0; i < items.size(); i++ )
    {
        if ( i == 0 )
        {
            QwtLegendItem *legendItem = (QwtLegendItem *)legend->find(items[i]);
            if ( legendItem )
                legendItem->setChecked(true);
            items[i]->setVisible(true);
        }
        else
            items[i]->setVisible(false);
    }
 
    setAutoReplot(true);
}
 
void Plot::populate()
{
    QwtPlotGrid *grid = new QwtPlotGrid;
    grid->enableX(false);
    grid->enableY(true);
    grid->enableXMin(false);
    grid->enableYMin(false);
    grid->setMajPen(QPen(Qt::black, 0, Qt::DotLine));
    grid->attach(this);
 
     char patientValues[] = { 'a', 'd', 'na'};
 
 
    Histogram *histogramClient = new Histogram("Blue Pills", Qt::red);
    histogramClient->setValues(
        sizeof(clientValues) / sizeof(char), clientValues);
    histogramClient->attach(this);
 
}
 
void Plot::showItem(QwtPlotItem *item, bool on)
{
    item->setVisible(on);
}

#include <stdlib.h>
#include <qpen.h>
#include <qwt_plot_layout.h>
#include <qwt_legend.h>
#include <qwt_legend_item.h>
#include <qwt_plot_grid.h>
#include <qwt_plot_histogram.h>
#include <qwt_column_symbol.h>
#include <qwt_series_data.h>
#include "plot.h"

class Histogram: public QwtPlotHistogram
{
public:
    Histogram(const QString &, const QColor &);

    void setColor(const QColor &);
    void setValues(uint numValues, char *);
};

Histogram::Histogram(const QString &title, const QColor &symbolColor):
    QwtPlotHistogram(title)
{
    setStyle(QwtPlotHistogram::Columns);

    setColor(symbolColor);
}

void Histogram::setColor(const QColor &symbolColor)
{
    QColor color = symbolColor;
    color.setAlpha(180);

    setPen(QPen(Qt::black));
    setBrush(QBrush(color));

    QwtColumnSymbol *symbol = new QwtColumnSymbol(QwtColumnSymbol::Box);
    symbol->setFrameStyle(QwtColumnSymbol::Raised);
    symbol->setLineWidth(2);
    symbol->setPalette(QPalette(color));
    setSymbol(symbol);
}

void Histogram::setValues(uint numValues, char *values)
{
    QVector<QwtIntervalSample> samples(numValues);
    for ( uint i = 0; i < numValues; i++ )
    {
        QwtInterval interval(double(i), i + 1.0);
        interval.setBorderFlags(QwtInterval::ExcludeMaximum);
        
        samples[i] = QwtIntervalSample(values[i], interval);
    }

    setData(new QwtIntervalSeriesData(samples));
}

Plot::Plot(QWidget *parent):
    QwtPlot(parent)
{
    setTitle("Patient Adherence");

    setCanvasBackground(QColor(Qt::gray));
    plotLayout()->setAlignCanvasToScales(true);

    setAxisTitle(QwtPlot::yLeft, "Probability(%)");
    setAxisTitle(QwtPlot::xBottom, "Adherence");

    QwtLegend *legend = new QwtLegend;
    legend->setItemMode(QwtLegend::CheckableItem);
    insertLegend(legend, QwtPlot::RightLegend);

    populate();

//    connect(this, SIGNAL(legendChecked(QwtPlotItem *, bool)),
       // SLOT(showItem(QwtPlotItem *, bool)));

    replot(); // creating the legend items

    QwtPlotItemList items = itemList(QwtPlotItem::Rtti_PlotHistogram);
    for ( int i = 0; i < items.size(); i++ )
    {
        if ( i == 0 )
        {
            QwtLegendItem *legendItem = (QwtLegendItem *)legend->find(items[i]);
            if ( legendItem )
                legendItem->setChecked(true);
            items[i]->setVisible(true);
        }
        else
            items[i]->setVisible(false);
    }

    setAutoReplot(true);
}

void Plot::populate()
{
    QwtPlotGrid *grid = new QwtPlotGrid;
    grid->enableX(false);
    grid->enableY(true);
    grid->enableXMin(false);
    grid->enableYMin(false);
    grid->setMajPen(QPen(Qt::black, 0, Qt::DotLine));
    grid->attach(this);

     char patientValues[] = { 'a', 'd', 'na'};


    Histogram *histogramClient = new Histogram("Blue Pills", Qt::red);
    histogramClient->setValues(
        sizeof(clientValues) / sizeof(char), clientValues);
    histogramClient->attach(this);

}

void Plot::showItem(QwtPlotItem *item, bool on)
{
    item->setVisible(on);
}

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.h

#pragma once
 
#include <qwt_plot.h>
 
class Plot: public QObject, public QwtPlot
{
    Q_OBJECT
 
public:
    Plot(QWidget * = NULL);
 
private:
    void populate();
 
private Q_SLOTS:
    void showItem(QwtPlotItem *, bool on);
};

#pragma once

#include <qwt_plot.h>

class Plot: public QObject, public QwtPlot
{
    Q_OBJECT

public:
    Plot(QWidget * = NULL);

private:
    void populate();

private Q_SLOTS:
    void showItem(QwtPlotItem *, bool on);
};

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Thank you in advance!

[Uwe]

I read this has to be done via promote widget but when i promote to my Plot class i get many errors.

Do you really expect to get an answer without any further information about the errors ?

Uwe