import java.awt.Graphics; import java.awt.image.BufferedImage; import java.io.IOException; import java.net.URL; import javax.imageio.ImageIO; import javax.swing.*; import java.util.*; import java.awt.FontMetrics; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; //pic erbt von Panel - spart eine Klasse public class PicPanel extends JPanel { ArrayList keys; public PicPanel(ArrayList keys){ this.keys = keys; } public void drawCenteredString(String s, int xx, int yy, Graphics g) { FontMetrics fm = g.getFontMetrics(); int x = xx- fm.stringWidth(s) / 2; g.drawString(s, x, yy); } //paintComponent überschreiben, Image zeichnen, super-Aufruf nicht vergessen @Override protected void paintComponent(Graphics g) { super.paintComponent(g); for (int x = 0; x < keys.size(); x++) { g.drawImage(keys.get(x).getImage(),x*32,2,this); drawCenteredString(keys.get(x).getName(),x*32+16,50,g); } } public String getToolTipText(MouseEvent evt) { int k = evt.getX() /32; if (keys.size()>k) { return "

Exponent:
"+keys.get(k).getE()+"

Modul:
"+keys.get(k).getN()+"

"; } // end of if return "Schlüsselspeicher"; } }