JAVA Swing聊天气泡

àì夳堔傛蜴生んèń 2023-10-05 19:32 1阅读 0赞

import javax.swing.*;
    import java.awt.*;
    import java.awt.geom.Area;
    import java.awt.geom.RoundRectangle2D;
    
    public class BubbleTest {
    
    	public static void main(String[] args) {
    		try {
    			for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
    				if ("Nimbus".equals(info.getName())) {
    					javax.swing.UIManager.setLookAndFeel(info.getClassName());
    					break;
    				}
    			}
    		} catch (ClassNotFoundException | InstantiationException | IllegalAccessException
    				| javax.swing.UnsupportedLookAndFeelException e) {
    			e.printStackTrace();
    		}
    		LeftArrowBubble leftArrowBubble = new LeftArrowBubble();
    		JOptionPane.showMessageDialog(null, leftArrowBubble);
    		RightArrowBubble rightArrowBubble = new RightArrowBubble();
    		JOptionPane.showMessageDialog(null, rightArrowBubble);
    	}
    
    	private static class LeftArrowBubble extends JPanel {
    
    		private int strokeThickness = 5;
    		private int padding = strokeThickness / 2;
    		private int radius = 10;
    		private int arrowSize = 6;
    
    		@Override
    		protected void paintComponent(final Graphics g) {
    			final Graphics2D graphics2D = (Graphics2D) g;
    
    			RenderingHints qualityHints = new RenderingHints(RenderingHints.KEY_ANTIALIASING,
    					RenderingHints.VALUE_ANTIALIAS_ON);
    			qualityHints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    			graphics2D.setRenderingHints(qualityHints);
    			graphics2D.setColor(new Color(80, 150, 180));
    			graphics2D.setStroke(new BasicStroke(strokeThickness));
    			int x = padding + strokeThickness + arrowSize;
    			int width = getWidth() - arrowSize - (strokeThickness * 2);
    			int height = getHeight() - strokeThickness;
    			graphics2D.fillRect(x, padding, width, height);
    			RoundRectangle2D.Double rect = new RoundRectangle2D.Double(x, padding, width, height, radius, radius);
    			Polygon arrow = new Polygon();
    			arrow.addPoint(14, 6);
    			arrow.addPoint(arrowSize + 2, 10);
    			arrow.addPoint(14, 12);
    			Area area = new Area(rect);
    			area.add(new Area(arrow));
    			graphics2D.draw(area);
    
    			// Define rendering hint, font name, font style and font size
    			graphics2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    			graphics2D.setFont(new Font("宋体", Font.BOLD + Font.ITALIC, 40));
    			graphics2D.setPaint(Color.ORANGE);
    
    			// Draw Hello World String
    			graphics2D.drawString("测试！", 15, 38);
    			graphics2D.dispose();
    		}
    
    	}
    
    	private static class RightArrowBubble extends JPanel {
    
    		private int strokeThickness = 5;
    		private int padding = strokeThickness / 2;
    		private int arrowSize = 6;
    		private int radius = 10;
    
    		@Override
    		protected void paintComponent(final Graphics g) {
    			final Graphics2D graphics2D = (Graphics2D) g;
    			RenderingHints qualityHints = new RenderingHints(RenderingHints.KEY_ANTIALIASING,
    					RenderingHints.VALUE_ANTIALIAS_ON);
    			qualityHints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    			graphics2D.setRenderingHints(qualityHints);
    			graphics2D.setColor(new Color(20, 130, 230));
    			graphics2D.setStroke(new BasicStroke(strokeThickness));
    			int width = getWidth() - arrowSize - (strokeThickness * 2);
    			int height = getHeight() - strokeThickness;
    			graphics2D.fillRect(padding, padding, width, height);
    			RoundRectangle2D.Double rect = new RoundRectangle2D.Double(padding, padding, width, height, radius, radius);
    			Polygon arrow = new Polygon();
    			arrow.addPoint(width, 6);
    			arrow.addPoint(width + arrowSize, 10);
    			arrow.addPoint(width, 12);
    			Area area = new Area(rect);
    			area.add(new Area(arrow));
    			graphics2D.draw(area);
    			// Define rendering hint, font name, font style and font size
    			graphics2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    			graphics2D.setFont(new Font("宋体", Font.BOLD + Font.ITALIC, 40));
    			graphics2D.setPaint(Color.ORANGE);
    
    			// Draw Hello World String
    			graphics2D.drawString("测试！", 15, 38);
    			graphics2D.dispose();
    		}
    
    	}
    
    }

![67dca35da140af6bea07b44e88599217.png][]![196f4717bd313550db176e2e3f736883.png][]

[67dca35da140af6bea07b44e88599217.png]: https://img-blog.csdnimg.cn/img_convert/67dca35da140af6bea07b44e88599217.png
[196f4717bd313550db176e2e3f736883.png]: https://img-blog.csdnimg.cn/img_convert/196f4717bd313550db176e2e3f736883.png