package com.example.client.utils;

import javax.swing.*;
import javax.swing.table.TableCellRenderer;
import java.awt.*;

public class TableViewRenderer extends JTextArea implements TableCellRenderer {
    public TableViewRenderer() {
        setLineWrap(true); //利用JTextArea的自动换行方法
        setWrapStyleWord(true);
    }

    public Component getTableCellRendererComponent(JTable table, Object value,
                                                   boolean isSelected, boolean hasFocus, int row, int column) {
        // 计算当下行的最佳高度
        int maxPreferredHeight = 0;
        for (int i = 0; i < table.getColumnCount(); i++) {
            setText("" + table.getValueAt(row, i));
            setSize(table.getColumnModel().getColumn(column).getWidth(), 0);
            maxPreferredHeight = Math.max(maxPreferredHeight, getPreferredSize().height);
        }

        //设置选择行高亮
        if (isSelected) {
            this.setForeground(table.getSelectionForeground());
            this.setBackground(table.getSelectionBackground());
        } else {
            this.setForeground(Color.BLACK);
            this.setBackground(table.getBackground());
        }

        if (table.getRowHeight(row) != maxPreferredHeight)  // 少了这行则处理器瞎忙
            table.setRowHeight(row, maxPreferredHeight);

        setText(value == null ? "" : value.toString());
        return this;
    }

}