updownarrow.java

来自「JTable jdk 1.4.2 kai fa de」· Java 代码 · 共 47 行

package table;
import java.awt.*;

import javax.swing.*;

public class UpDownArrow implements Icon {
    private  int size = 12;

    public static final int UP = 0;
    public static final int DOWN = 1;
    private int direction;

    public UpDownArrow(int i) {
        direction = i;
    }

    public int getIconHeight() {
        return size;
    }

    public int getIconWidth() {
        return size;
    }

    public void paintIcon(Component component, Graphics g, int i, int j) {
        int k = i + size / 2;
        int l = i + 1;
        int i1 = (i + size) - 2;
        int j1 = j + 1;
        int k1 = (j + size) - 2;
        Color color = (Color) UIManager.get("controlDkShadow");
        if (direction == 0) {
            g.setColor(Color.white);
            g.drawLine(l, k1, i1, k1);
            g.drawLine(i1, k1, k, j1);
            g.setColor(color);
            g.drawLine(l, k1, k, j1);
        } else {
            g.setColor(color);
            g.drawLine(l, j1, i1, j1);
            g.drawLine(l, j1, k, k1);
            g.setColor(Color.white);
            g.drawLine(i1, j1, k, k1);
        }
    }
}