ImGuiWatchExpr.hh

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#ifndef IMGUI_WATCH_EXPR_HH
#define IMGUI_WATCH_EXPR_HH
 
#include "ImGuiPart.hh"
 
#include "TclObject.hh"
 
#include <expected>
#include <vector>
 
namespace openmsx {
 
class SymbolManager;
 
class ImGuiWatchExpr final : public ImGuiPart
{
public:
        explicit ImGuiWatchExpr(ImGuiManager& manager);
 
        [[nodiscard]] zstring_view iniName() const override { return "watch expr"; }
        void save(ImGuiTextBuffer& buf) override;
        void loadStart() override;
        void loadLine(std::string_view name, zstring_view value) override;
        void paint(MSXMotherBoard* motherBoard) override;
        void refreshSymbols();
 
private:
        void drawRow(int row);
        void checkSort();
 
public:
        bool show = false;
 
private:
        SymbolManager& symbolManager;
 
        struct WatchExpr {
                // added constructors: workaround clang-14 bug(?)
                WatchExpr() = default;
                WatchExpr(std::string d, std::string e, TclObject f)
                        : description(std::move(d)), exprStr(std::move(e)), format(std::move(f)) {}
                std::string description;
                std::string exprStr;
                std::optional<TclObject> expression; // cache, generate from 'expression'
                TclObject format;
        };
        std::vector<WatchExpr> watches;
 
        [[nodiscard]] std::expected<TclObject, std::string> evalExpr(WatchExpr& watch, Interpreter& interp) const;
 
        int selectedRow = -1;
 
        static constexpr auto persistentElements = std::tuple{
                PersistentElement{"show", &ImGuiWatchExpr::show},
                // manually handle 'watches'
        };
};
 
} // namespace openmsx
 
#endif