package javaswing; import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.RenderingHints; import java.awt.image.BufferedImage; import java.io.IOException; import java.util.logging.Level; import java.util.logging.Logger; import javax.imageio.ImageIO; import javax.swing.Box; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.SwingUtilities; /** * * @web http://java-buddy.blogspot.com/ */ public class JavaTestSwing { static JFrameWin jFrameWindow; public static class MyComponent extends JComponent{ BufferedImage bufferedImage = null; Dimension myDimension = new Dimension(50, 50); public MyComponent() { try { bufferedImage = ImageIO.read(this.getClass().getResource("duke.png")); int imageWidth = bufferedImage.getWidth(); int imageHeight = bufferedImage.getHeight(); myDimension = new Dimension(imageWidth * 2, imageHeight * 2); } catch (IOException ex) { Logger.getLogger(JavaTestSwing.class.getName()).log(Level.SEVERE, null, ex); } } @Override public Dimension getPreferredSize() { return myDimension; } @Override public Dimension getMaximumSize() { return myDimension; } @Override public Dimension getMinimumSize() { return myDimension; } @Override protected void paintComponent(Graphics g) { //g.drawImage(bufferedImage, 0, 0, null); Graphics2D graphics2D; //2X graphics2D = (Graphics2D)g.create(); graphics2D.drawImage(bufferedImage, 0, 0, null); //1X graphics2D = (Graphics2D)g.create(); graphics2D.translate(30, 0); graphics2D.drawImage(bufferedImage, 0, 0, null); //0.5X graphics2D = (Graphics2D)g.create(); graphics2D.translate(60, 0); graphics2D.drawImage(bufferedImage, 0, 0, null); //dispose Graphics2D object graphics2D.dispose(); } } public static class JFrameWin extends JFrame{ public JFrameWin(){ this.setTitle("java-buddy.blogspot.com"); this.setSize(300, 300); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); MyComponent myComponent = new MyComponent(); Box horizontalBox = Box.createHorizontalBox(); horizontalBox.add(myComponent); this.add(horizontalBox); } } public static void main(String[] args){ Runnable doSwingLater = new Runnable(){ public void run() { jFrameWindow = new JFrameWin(); jFrameWindow.setVisible(true); } }; SwingUtilities.invokeLater(doSwingLater); } }
Tuesday, October 23, 2012
Translate image using Graphics2D.translate()
Example to draw bufferedImage on translated Graphics2D:
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