hallo!



sorry, es wieder mal das problem das ein bild nicht angezeigt wird: ich möchte die klasse BitmapComponent wiederverendbar machen und benutze sie in JBuilder 9



der code compiliert ohne fehlermeldung, aber das

bild wird nicht angezeigt.





/* BitmapComponent.java */

package PWGEN;



import java.awt.*;



public class BitmapComponent extends Canvas

{

private Image img;

MediaTracker mt;

public BitmapComponent(String fname)

{

img = getToolkit().getImage(fname);

mt = new MediaTracker(this);

mt.addImage(img, 0);

try {

//Warten, bis das Image vollständig geladen ist,

//damit getWidth() und getHeight() funktionieren

mt.waitForAll();

} catch (InterruptedException e) {

//nothing

}

}



public void paint(Graphics g){

g.drawImage(img,150,100,this);

}



public Dimension getPreferredSize()

{

return new Dimension(

img.getWidth(this),

img.getHeight(this)

);

}



public Dimension getMinimumSize()

{

return new Dimension(

img.getWidth(this),

img.getHeight(this)

);

}

}



die obige klasse wird dann in unterere verwendent:



package PWGEN;



import java.awt.*;

import java.awt.event.*;

import javax.swing.*;



/**

* Title:

* Description:

* Copyright: Copyright (c) 2003

* Company:

* @author not attributable

* @version 1.0

*/



public class AboutUI extends JDialog implements ActionListener {



JPanel panel1 = new JPanel();

JPanel panel2 = new JPanel();

JPanel insetsPanel1 = new JPanel();

JPanel insetsPanel2 = new JPanel();

JPanel insetsPanel3 = new JPanel();

JButton button1 = new JButton();

JLabel imageLabel = new JLabel();

JLabel label1 = new JLabel();

JLabel label2 = new JLabel();

JLabel label3 = new JLabel();

JLabel label4 = new JLabel();

ImageIcon image1 = new ImageIcon();

BorderLayout borderLayout1 = new BorderLayout();

BorderLayout borderLayout2 = new BorderLayout();

FlowLayout flowLayout1 = new FlowLayout();

GridLayout gridLayout1 = new GridLayout();

String product = "";

JPanel panel3 = new JPanel();

BitmapComponent bc;

public AboutUI(Frame parent) {

super(parent);

enableEvents(AWTEvent.WINDOW_EVENT_MASK);

try {

jbInit();

}

catch(Exception e) {

e.printStackTrace();

}

}

//Component initialization

private void jbInit() throws Exception {

image1 = new ImageIcon(PWGEN.PWGenUI.class.getResource("about.png"));

imageLabel.setIcon(image1);

this.setTitle("About");

panel1.setLayout(borderLayout1);

panel2.setLayout(borderLayout2);

insetsPanel1.setLayout(flowLayout1);

insetsPanel2.setLayout(flowLayout1);

insetsPanel2.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));

gridLayout1.setRows(4);

gridLayout1.setColumns(1);

label1.setText(product);

label2.setText(version);

insetsPanel3.setLayout(gridLayout1);

insetsPanel3.setBorder(BorderFactory.createEmptyBorder(10, 60, 10, 10));

button1.setText("Ok");

button1.addActionListener(this);

panel2.add(insetsPanel2, BorderLayout.WEST);

insetsPanel2.add(imageLabel, null);

this.getContentPane().add(panel1, null);



insetsPanel3.add(label1, null);

insetsPanel3.add(label2, null);

insetsPanel3.add(label3, null);

insetsPanel3.add(label4, null);

panel1.add(panel3, BorderLayout.CENTER);

panel1.add(insetsPanel1, BorderLayout.SOUTH);

panel1.add(panel2, BorderLayout.NORTH);

panel2.add(insetsPanel3, BorderLayout.CENTER);

insetsPanel1.add(button1, null);

panel1.setVisible(true);

panel1.setSize(400,300);



/****************************/

// ab hier wirds wichtig:



bc = new BitmapComponent("ich.jpg");

panel3.add(bc,null);

bc.setSize(200,200);

bc.setVisible(true);

panel3.setSize(bc.getWidth(),bc.getHeight());

panel3.setVisible(true);

setSize(400,500);

setResizable(true);

panel3.updateUI(); //hilft auch nichts





}



//Overridden so we can exit when window is closed

protected void processWindowEvent(WindowEvent e) {

if (e.getID() == WindowEvent.WINDOW_CLOSING) {

cancel();

}

super.processWindowEvent(e);

}

//Close the dialog

void cancel() {

dispose();

}

//Close the dialog on a button event

public void actionPerformed(ActionEvent e) {

if (e.getSource() == button1) {

cancel();

}

}

}



die datei ich.jpg, um die es sich hier handelt liegt sowohl im unterverzeichniss src// als auch im unterverzeichniss classes//



Danke für eure Hilfe

Stefan
Schönen Gruß und vielen Dank!
stream
---

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geschrieben von stream , 24.07.2003, 01:24 Uhr , 23 mal gelesen