#include "common/core_model/diagram.h"

// direction_manager.h
/**********editor方向管理***********/
class DirectionManager {
public:
    static bool isHorizontal(Direction dir) {
        return dir == Direction::Right || dir == Direction::Left;
    }

    static bool isVertical(Direction dir) {
        return dir == Direction::Down || dir == Direction::Up;
    }

    static Direction getOpposite(Direction dir) {
        switch (dir) {
        case Direction::Right: return Direction::Left;
        case Direction::Left: return Direction::Right;
        case Direction::Down: return Direction::Up;
        case Direction::Up: return Direction::Down;
        default: return dir;
        }
    }

    static bool isDirectionOccupied(int usedFlags, Direction dir) {
        return (usedFlags & static_cast<int>(dir)) != 0;
    }

    static int markDirectionOccupied(int usedFlags, int dir) {
        return usedFlags | dir;
    }

    static QPoint getIncrement(Direction dir, int hSpacing, int vSpacing) {
        if (dir == Direction::Right) return QPoint(hSpacing, 0);
        if (dir == Direction::Left) return QPoint(-hSpacing, 0);
        if (dir == Direction::Down) return QPoint(0, vSpacing);
        if (dir == Direction::Up) return QPoint(0, -vSpacing);
        return QPoint(0, 0);
    }

    static int getRotationAngle(Direction dir) {
        switch (dir) {
        case Direction::Right: return -90;
        case Direction::Left: return 90;
        case Direction::Down: return 0;
        case Direction::Up: return 180;
        default: return 0;
        }
    }
};