tile16_undo_actions.h

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#ifndef YAZE_APP_EDITOR_OVERWORLD_TILE16_UNDO_ACTIONS_H_
#define YAZE_APP_EDITOR_OVERWORLD_TILE16_UNDO_ACTIONS_H_
 
#include <cstdint>
#include <functional>
#include <string>
#include <utility>
#include <vector>
 
#include "absl/status/status.h"
#include "absl/strings/str_format.h"
#include "app/editor/core/undo_action.h"
#include "app/gfx/types/snes_palette.h"
#include "app/gfx/types/snes_tile.h"
 
namespace yaze {
namespace editor {
 
struct Tile16Snapshot {
  int tile_id = 0;
  std::vector<uint8_t> bitmap_data;
  gfx::SnesPalette bitmap_palette;
  gfx::Tile16 tile_data;
  uint8_t palette = 0;
  bool x_flip = false;
  bool y_flip = false;
  bool priority = false;
};
 
class Tile16EditAction : public UndoAction {
 public:
  using RestoreFn = std::function<void(const Tile16Snapshot&)>;
 
  Tile16EditAction(Tile16Snapshot before, Tile16Snapshot after,
                   RestoreFn restore)
      : before_(std::move(before)),
        after_(std::move(after)),
        restore_(std::move(restore)) {}
 
  absl::Status Undo() override {
    restore_(before_);
    return absl::OkStatus();
  }
 
  absl::Status Redo() override {
    restore_(after_);
    return absl::OkStatus();
  }
 
  std::string Description() const override {
    return absl::StrFormat("Edit tile16 #%d", before_.tile_id);
  }
 
  size_t MemoryUsage() const override {
    return before_.bitmap_data.size() + after_.bitmap_data.size();
  }
 
  bool CanMergeWith(const UndoAction& /*prev*/) const override {
    return false;
  }
 
 private:
  Tile16Snapshot before_;
  Tile16Snapshot after_;
  RestoreFn restore_;
};
 
}  // namespace editor
}  // namespace yaze
 
#endif  // YAZE_APP_EDITOR_OVERWORLD_TILE16_UNDO_ACTIONS_H_