JTabbedPane 自定义显示效果

直接贴点代码吧

package inci.emp.ctrl.whole;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.LayoutManager;
import java.awt.Window;

import javax.swing.JComponent;
import javax.swing.UIManager;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.basic.BasicTabbedPaneUI;

public class RecTabbedPaneUI extends BasicTabbedPaneUI
{
	/**
	 * by: QQ: 725137 Name:whole
	 */
	private Color defaultColor = new Color(192, 192, 192);

	private Color selectedColor = new Color(155, 159, 232);

	public static ComponentUI createUI(JComponent c)
	{

		return new RecTabbedPaneUI();
	}

	protected void paintTabBackground(Graphics g, int tabPlacement,
			int tabIndex, int x, int y, int w, int h, boolean isSelected)
	{
		g.setColor(!isSelected || selectedColor == null ? defaultColor
				: selectedColor);
		
		switch (tabPlacement)
		{
		case LEFT:
			g.fillRect(x + 1, y + 1, w - 1, h - 3);
			break;
		case RIGHT:
			g.fillRect(x, y + 1, w - 2, h - 3);
			break;
		case BOTTOM:
			g.fillRect(x + 1, y, w - 3, h - 1);
			break;
		case TOP:
		
		default:
			g.fillRect(x + 1, y + 1, w - 3, h - 1);
	
		}
		
	}

	protected LayoutManager createLayoutManager()
	{

		
		return new TabbedPaneLayout();

	}// 设置Layout

	public class TabbedPaneLayout extends BasicTabbedPaneUI.TabbedPaneLayout
	{

		protected void calculateTabRects(int tabPlacement, int tabCount)
		{
			super.calculateTabRects(tabPlacement, tabCount);
			
			setRec(10);
			// 设置间距
			tabInsets.bottom = 10;//设置选项卡高度
		}

		public void setRec(int rec)
		{
			for (int i = 0; i < rects.length; i++)
			{
				rects[i].x = rects[i].x + rec * i;
			}
		}
	}

	public void setDefaultColor(Color defaultColor)
	{
		this.defaultColor = defaultColor;
	}

	public void setSelectedColor(Color selectedColor)
	{
		this.selectedColor = selectedColor;
	}

	protected void paintContentBorder(Graphics g, int tabPlacement,
			int selectedIndex)
	{
		int width = tabPane.getWidth();
		int height = tabPane.getHeight();
		Insets insets = tabPane.getInsets();
		Insets tabAreaInsets = getTabAreaInsets(tabPlacement);

		int x = insets.left;
		int y = insets.top;
		int w = width - insets.right - insets.left;
		int h = height - insets.top - insets.bottom;

		switch (tabPlacement)
		{
		case LEFT:
			x += calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth);

			w -= (x - insets.left);
			break;
		case RIGHT:
			w -= calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth);

			w += tabAreaInsets.left;

			break;
		case BOTTOM:
			h -= calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight);

			h += tabAreaInsets.top;

			break;
		case TOP:


			
		default:
			y += calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight);

			y -= tabAreaInsets.bottom;

			h -= (y - insets.top);
		}

		// Fill region behind content area
		Color color = UIManager.getColor("TabbedPane.contentAreaColor");
		if (color != null)
		{
			g.setColor(color);
		}
		else if (selectedColor == null)
		{
			g.setColor(tabPane.getBackground());
		}
		else
		{
			g.setColor(selectedColor);
		}
		g.fillRect(x, y, w, h);
		 g.setColor(selectedColor);
		 Graphics2D g2d = (Graphics2D) g;
		 g2d.setStroke(new BasicStroke(10.0f));
		 
		 g.drawLine(x+6, y+5,w, y+5);
		 g2d.setStroke(new BasicStroke(1.0f));
		 
	}

}