EditCommand.h

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#pragma once
#include "common/Export.h"
 
 
#include "editor/EditorTarget.h"
 
#include <memory>
#include <string>
#include <vector>
 
namespace eve::editor {
 
class IEditCommand {
public:
    virtual ~IEditCommand() = default;
    virtual const std::string &name() const = 0;
    virtual bool apply() = 0;
    virtual void revert() = 0;
    [[nodiscard]] virtual std::unique_ptr<IEditCommand> clone() const { return nullptr; }
    virtual bool mergeWith(const IEditCommand &later) {
        (void)later;
        return false;
    }
    virtual EditRegion dirtyRegion() const = 0;
};
 
struct IntFieldChange { int x = 0, y = 0, before = 0, after = 0; };
 
class EVENGINE_API_ORCHESTRATION IntFieldEditCommand final : public IEditCommand {
public:
    IntFieldEditCommand(std::string name, IEditableTarget *target);
    const std::string &name() const override { return name_; }
    bool record(int x, int y, int after);
    int changeCount() const { return static_cast<int>(changes_.size()); }
    bool apply() override;
    void revert() override;
    [[nodiscard]] std::unique_ptr<IEditCommand> clone() const override;
    bool mergeWith(const IEditCommand &later) override;
    EditRegion dirtyRegion() const override { return dirty_; }
private:
    std::string name_;
    IEditableTarget *target_ = nullptr;
    std::vector<IntFieldChange> changes_;
    EditRegion dirty_;
};
 
struct ScalarFieldChange { int x = 0, y = 0; float before = 0.f, after = 0.f; };
 
class EVENGINE_API_ORCHESTRATION ScalarFieldEditCommand final : public IEditCommand {
public:
    ScalarFieldEditCommand(std::string name, IEditableTarget *target);
    const std::string &name() const override { return name_; }
    bool record(int x, int y, float after);
    int changeCount() const { return static_cast<int>(changes_.size()); }
    bool apply() override;
    void revert() override;
    [[nodiscard]] std::unique_ptr<IEditCommand> clone() const override;
    bool mergeWith(const IEditCommand &later) override;
    EditRegion dirtyRegion() const override { return dirty_; }
private:
    std::string name_;
    IEditableTarget *target_ = nullptr;
    std::vector<ScalarFieldChange> changes_;
    EditRegion dirty_;
};
 
}  // namespace eve::editor