package com.android.app_base.widget;

import android.graphics.Rect;
import android.view.View;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

/**
* @author Ljj
* @date 2023.03.18. 20:46
* @desc
*/public class LinearItemDecoration extends RecyclerView.ItemDecoration {
    private int leftSpace;
    private int rightSpace;
    private int topSpace;
    private int bottomSpace;

    private int firstTop = -1;

    public LinearItemDecoration(){

    }

    public LinearItemDecoration(int space) {
        leftSpace = rightSpace = topSpace = bottomSpace = space;
    }

    public LinearItemDecoration(int horizontalSpace,int verticalSpace) {
        rightSpace = leftSpace = horizontalSpace;
        topSpace = bottomSpace = verticalSpace;
    }

    public LinearItemDecoration(int leftSpace, int rightSpace, int topSpace, int bottomSpace) {
        this.leftSpace = leftSpace;
        this.rightSpace = rightSpace;
        this.topSpace = topSpace;
        this.bottomSpace = bottomSpace;
    }

    @Override
    public void getItemOffsets(@NonNull Rect outRect, @NonNull View view, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) {
        super.getItemOffsets(outRect, view, parent, state);
        outRect.left = leftSpace;
        outRect.right = rightSpace;
        outRect.bottom = bottomSpace;
        outRect.top = topSpace;
        if ( firstTop != -1 && firstTop >= 0){
            if (parent.getChildLayoutPosition(view) == 0)
                outRect.top = firstTop;
        }
    }

    public void setTopSpace(int topSpace) {
        this.topSpace = topSpace;
    }

    public void setLeftSpace(int leftSpace) {
        this.leftSpace = leftSpace;
    }

    public void setRightSpace(int rightSpace) {
        this.rightSpace = rightSpace;
    }

    public void setBottomSpace(int bottomSpace) {
        this.bottomSpace = bottomSpace;
    }

    public void setHorizontalSpace(int horizontalSpace){
        rightSpace = leftSpace = horizontalSpace;
    }
    public void setVerticalSpace(int verticalSpace){
        rightSpace = leftSpace = verticalSpace;
    }

    public void setFirstTop(int firstTop) {
        this.firstTop = firstTop;
    }

    public int getLeftSpace() {
        return leftSpace;
    }

    public int getRightSpace() {
        return rightSpace;
    }

    public int getTopSpace() {
        return topSpace;
    }

    public int getBottomSpace() {
        return bottomSpace;
    }

    public int getFirstTop() {
        return firstTop;
    }
}