#include <Wt/WApplication.h>
#include <Wt/WContainerWidget.h>
#include <Wt/WGridLayout.h>
#include <Wt/WText.h>
#include <Wt/WPanel.h>

class PanelApplication : public Wt::WApplication
{
public:
    PanelApplication(const Wt::WEnvironment& env);
};

PanelApplication::PanelApplication(const Wt::WEnvironment& env)
    : Wt::WApplication(env)
{
    setTitle("Animated Panel Demo");
    const Wt::WAnimation animation(Wt::AnimationEffect::SlideInFromTop, Wt::TimingFunction::Linear,
                                   1000);
        
    auto panelContents = std::make_unique<Wt::WContainerWidget>();
    auto layout = panelContents->setLayout(std::make_unique<Wt::WGridLayout>());
        
    layout->addWidget(std::make_unique<Wt::WText>("Text 0"), 0, 0);
    layout->addWidget(std::make_unique<Wt::WText>("Text 1"), 0, 1);
    layout->addWidget(std::make_unique<Wt::WText>("Text 2"), 0, 2);
    layout->addWidget(std::make_unique<Wt::WText>("Text 3"), 0, 3);
    layout->addWidget(std::make_unique<Wt::WText>("Text 4"), 0, 4);

    auto thePanel = std::make_unique<Wt::WPanel>();
    thePanel->setTitle("The Panel");
    thePanel->setCentralWidget(std::move(panelContents));
    thePanel->setCollapsible(true);
    thePanel->setAnimation(animation);
    thePanel->setCollapsed(true);

    this->root()->addWidget(std::move(thePanel));
}

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