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Wt WCartesianChart does not show » Wt_Chart_attempt.cpp

Kamiel Fokkink, 10/12/2020 08:22 PM

 
#include "Wt/WConfig.h"
#include "Wt/WApplication.h"
#include "Wt/WText.h"
#include "Wt/WStandardItem.h"
#include "Wt/WStandardItemModel.h"
#include "Wt/Chart/WCartesianChart.h"
#include "Wt/Chart/WDataSeries.h"


class TestApplication : public Wt::WApplication
{
TestApplication(const Wt::WEnvironment& env) : Wt::WApplication(env){

setTitle("Minimal working example Cartesian Chart");
root()->addNew<Wt::WText>("You are in the test app");

std::shared_ptr<Wt::WStandardItemModel> model = std::make_shared<Wt::WStandardItemModel>(10,2);
for (int i=0;i<10;++i){
auto item = std::make_unique<Wt::WStandardItem>();
item->setData(i,Wt::ItemDataRole::User);
model->setItem(i,0,std::move(item));
auto item2 = std::make_unique<Wt::WStandardItem>();
item2->setData(i+2,Wt::ItemDataRole::User);
model->setItem(i,1,std::move(item2));
}

auto chart = root()->addNew<Wt::Chart::WCartesianChart>();
chart->setModel(model);
chart->setXSeriesColumn(0);

auto series = std::make_unique<Wt::Chart::WDataSeries>(1,Wt::Chart::SeriesType::Bar);
chart->addSeries(std::move(series));
}
};

int main(int argc, char **argv)
{
return Wt::WRun(argc, argv, [=](const Wt::WEnvironment& env){return std::make_unique<TestApplication>(env);}));
}
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