WidgetRegister.cpp

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#include "WidgetRegister.h"
 
#include <map>
#include <memory>
#include <typeindex>
 
// DO NOT REMOVE. NEEDS TO BE INCLUDED BEFORE ExpressionException.h for `LocalException() << ` construct below.
#include <ArmarXCore/core/logging/LoggingUtil.h>
 
#include <ArmarXCore/core/exceptions/local/ExpressionException.h>
#include <ArmarXCore/util/CPPUtility/GetTypeString.h>
 
#include "Widgets.h"
 
namespace armarx::RemoteGui
{
 
    typedef std::map<std::type_index, WidgetHandler*> WidgetRegister;
 
    template <typename HandlerT>
    void
    registerHandler(WidgetRegister& register_)
    {
        using WidgetHandler = TypedWidgetHandler<HandlerT>;
        static WidgetHandler handler;
        register_.emplace(typeid(typename WidgetHandler::RemoteWidgetT), &handler);
    }
 
    WidgetRegister
    createWidgetRegister()
    {
        WidgetRegister result;
 
        registerHandler<CheckBoxHandler>(result);
        registerHandler<ToggleButtonHandler>(result);
        registerHandler<ButtonHandler>(result);
 
        registerHandler<IntSpinBoxHandler>(result);
        registerHandler<IntSliderHandler>(result);
        registerHandler<FloatSpinBoxHandler>(result);
        registerHandler<FloatSliderHandler>(result);
 
        registerHandler<LabelHandler>(result);
        registerHandler<LineEditHandler>(result);
        registerHandler<ComboBoxHandler>(result);
 
        registerHandler<GroupBoxHandler>(result);
        registerHandler<VBoxLayoutHandler>(result);
        registerHandler<HBoxLayoutHandler>(result);
        registerHandler<SimpleGridLayoutSpanningChildHandler>(result);
        registerHandler<SimpleGridLayoutHandler>(result);
        registerHandler<GridLayoutHandler>(result);
 
        registerHandler<HSpacerHandler>(result);
        registerHandler<VSpacerHandler>(result);
        registerHandler<HLineHandler>(result);
        registerHandler<VLineHandler>(result);
        registerHandler<EmptyWidgetHandler>(result);
 
        registerHandler<Vector3fSpinBoxesHandler>(result);
        registerHandler<PosRPYSpinBoxesHandler>(result);
        return result;
    }
 
    const WidgetHandler&
    getWidgetHandler(WidgetPtr const& desc)
    {
        ARMARX_TRACE;
        static const WidgetRegister widgetRegister = createWidgetRegister();
 
        auto descPtr = desc.get();
        ARMARX_CHECK_EXPRESSION(descPtr != nullptr);
 
        std::type_info const& typeInfo = typeid(*descPtr);
 
        auto iter = widgetRegister.find(typeInfo);
        if (iter == widgetRegister.end())
        {
            throw armarx::LocalException()
                << "Unexpected widget type: " << GetTypeString(typeInfo)
                << "\n only these types are supported:" << ARMARX_STREAM_PRINTER
            {
                for (const auto& [tid, _] : widgetRegister)
                {
                    out << "\n    " << GetTypeString(tid);
                }
            };
        }
 
        auto& widgetHandler = iter->second;
        ARMARX_CHECK_EXPRESSION(widgetHandler);
 
        return *widgetHandler;
    }
 
} // namespace armarx::RemoteGui