IntEnumWidget.h

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#pragma once
 
#include <optional>
#include <string>
#include <utility>
 
#include <QComboBox>
 
#include "RobotAPI/libraries/aron/core/data/variant/primitive/Int.h"
#include "RobotAPI/libraries/aron/core/type/variant/forward_declarations.h"
 
#include "../AronTreeWidgetItem.h"
#include "CustomWidget.h"
 
namespace armarx::skills::gui
{
    // Custom wrapper around the QComboBox widget to represent IntEnums
    // This class handles parsing once the user edited the field and is also responsible
    // to parse the according aron data from text
    class IntEnumWidget : public CustomWidget
    {
        Q_OBJECT
    public:
        IntEnumWidget(const aron::type::IntEnumPtr&, QTreeWidgetItem* currentItem);
        // needs to be called after the constructor, because qt needs the meta object to be fully constructed at this point
        void postCtorCall();
 
        static IntEnumWidget* DynamicCast(QWidget*);
        static IntEnumWidget* DynamicCastAndCheck(QWidget*);
 
        bool hasParseErrors();
        void setText(const QString& text);
        QString getText();
        std::pair<bool, aron::data::IntPtr> parseToAron();
 
    private:
        // display format for an enum entry, e.g. "TopGrasp (2)".
        // only affects what is shown in the GUI; parseToAron() resolves it back
        // to the plain int value that is sent for the skill execution.
        static std::string toDisplayText(const std::string& name, int value);
        // resolves user-facing text (display format, plain name, or plain number)
        // to the according enum entry
        std::optional<std::pair<std::string, int>> resolveText(const std::string& text) const;
 
        const aron::type::IntEnumPtr element_type;
        QComboBox* innerWidget;
 
        bool noParseErrors = true;
 
        void highlightUnparsableEntries();
    private slots:
        void textChanged(const QString&);
    };
} // namespace armarx::skills::gui