Adding a panel image using Java AWT

Question

I posted earlier that I have a really bad panel, but I fixed it just by changing the layout (thanks to Charlie Martin for helping me). Now I'm trying to add an image to the panel, so I can add this panel to the frame. This is part of the class I was messing with.

http://friendpaste.com/13zibFC4oVxCbm83500KVj (dead link)

This is what happens when I launch the program and launch the game (in the launch popup).

Essentially, it is assumed that there should be an image with buttons in the main window, and I'm not quite sure how I will implement this.

Answer 1

Maybe I just installed ImageIcon in JLabel and add JLabel wherever you want in the panel.

Answer 2

Please, please, please do not use JLabel. Although this is the easiest way, it is also bad practice and causes problems when you have images that are not the actual size that you want to display.

The second answer is on the right track, but still has the same problem.

Here is the class I wrote in the past that you need:

It will also allow you to set a specific size if you want; it will scale the image to fit the panel best, and align the image.

import java.awt.Dimension; import java.awt.Graphics; import java.awt.Image; import java.awt.Insets; import java.awt.print.PageFormat; import java.awt.print.Printable; import java.awt.print.PrinterException; import java.io.File; import javax.swing.ImageIcon; import javax.swing.JComponent; import javax.swing.SwingConstants; public class ImagePanel extends JComponent implements SwingConstants, Printable { private Image image; private int verticalAlignment = CENTER; private int horizontalAlignment = CENTER; public ImagePanel() {} public ImagePanel(Image image) { setImage(image); } public Image getImage() { return image; } public void setImage(Image image) { this.image = image; repaint(); } public void setImage(String file) { setImage(new ImageIcon(file).getImage()); } public void setImage(File file) { setImage(new ImageIcon(file.getAbsolutePath()).getImage()); } public void setImage(byte[] imageData) { setImage(imageData==null ? null : new ImageIcon(imageData).getImage()); } public int getVerticalAlignment() { return verticalAlignment; } /** * @beaninfo * bound: true * enum: TOP SwingConstants.TOP * CENTER SwingConstants.CENTER * BOTTOM SwingConstants.BOTTOM * attribute: visualUpdate true * description: The alignment of the image along the Y axis. */ public void setVerticalAlignment(int verticalAlignment) { if( (verticalAlignment==TOP) || (verticalAlignment==CENTER) || (verticalAlignment==BOTTOM) ) this.verticalAlignment = verticalAlignment; else throw new IllegalArgumentException("Invalid Vertical Alignment: " + verticalAlignment); } public int getHorizontalAlignment() { return horizontalAlignment; } /** * @beaninfo * bound: true * enum: LEFT SwingConstants.LEFT * CENTER SwingConstants.CENTER * RIGHT SwingConstants.RIGHT * attribute: visualUpdate true * description: The alignment of the image along the X axis. */ public void setHorizontalAlignment(int horizontalAlignment) { if( (horizontalAlignment==LEFT) || (horizontalAlignment==CENTER) || (horizontalAlignment==RIGHT) ) this.horizontalAlignment = horizontalAlignment; else throw new IllegalArgumentException("Invalid Horizontal Alignment: " + horizontalAlignment); } @Override public Dimension getPreferredSize() { if(image == null) return super.getPreferredSize(); else return new Dimension(image.getWidth(this), image.getHeight(this)); } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); if(image==null) return; Insets insets = getInsets(); int x = insets.left; int y = insets.top; int w = getWidth() - insets.left - insets.right; int h = getHeight() - insets.top - insets.bottom; int src_w = image.getWidth(null); int src_h = image.getHeight(null); double scale_x = ((double)w)/src_w; double scale_y = ((double)h)/src_h; double scale = Math.min(scale_x, scale_y); int dst_w = (int)(scale * src_w); int dst_h = (int)(scale * src_h); int dx = x + (w-dst_w)/2; if(horizontalAlignment==LEFT) dx = x; else if(horizontalAlignment==RIGHT) dx = x + w - dst_w; int dy = y + (h-dst_h)/2; if(verticalAlignment==TOP) dy = y; else if(verticalAlignment==BOTTOM) dy = y + h - dst_h; g.drawImage(image, dx, dy, dx+dst_w, dy+dst_h, 0, 0, src_w, src_h, null); } public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException { if(pageIndex>0 || image==null) return NO_SUCH_PAGE; double w = pageFormat.getImageableWidth(); double h = pageFormat.getImageableHeight(); int src_w = image.getWidth(null); int src_h = image.getHeight(null); double scale_x = w/src_w; double scale_y = h/src_h; double scale = Math.min(scale_x, scale_y); int dst_w = (int)(scale * src_w); int dst_h = (int)(scale * src_h); int dx = (int)((w-dst_w)/2); int dy = (int)((h-dst_h)/2); graphics.drawImage(image, dx, dy, dx+dst_w, dy+dst_h, 0, 0, src_w, src_h, null); return PAGE_EXISTS; } }