graphics_undo_actions.h

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#ifndef YAZE_APP_EDITOR_GRAPHICS_UNDO_ACTIONS_H_
#define YAZE_APP_EDITOR_GRAPHICS_UNDO_ACTIONS_H_
 
#include <cstddef>
#include <string>
#include <utility>
 
#include "absl/status/status.h"
#include "app/editor/core/undo_action.h"
#include "app/editor/graphics/graphics_sheet_sync.h"
 
namespace yaze {
namespace editor {
 
class GraphicsEditorState;
 
class GraphicsPixelEditAction : public UndoAction {
 public:
  GraphicsPixelEditAction(GraphicsEditorState* state, SheetPixelDiff diff,
                          std::string description)
      : state_(state),
        diff_(std::move(diff)),
        description_(std::move(description)) {}
 
  absl::Status Undo() override {
    return ApplySheetPixelDiff(*state_, diff_, /*redo=*/false);
  }
  absl::Status Redo() override {
    return ApplySheetPixelDiff(*state_, diff_, /*redo=*/true);
  }
 
  std::string Description() const override { return description_; }
  size_t MemoryUsage() const override { return diff_.MemoryUsage(); }
 
  bool CanMergeWith(const UndoAction& /*prev*/) const override {
    // One action per stroke already.
    return false;
  }
 
  const SheetPixelDiff& diff() const { return diff_; }
 
 private:
  GraphicsEditorState* state_;
  SheetPixelDiff diff_;
  std::string description_;
};
 
}  // namespace editor
}  // namespace yaze
 
#endif  // YAZE_APP_EDITOR_GRAPHICS_UNDO_ACTIONS_H_