I have a JFrame that shoud show an image (retrieved from web) and two lateral buttons for show next and previous image. Original image size is too big, and i would scale it before show. this is my code:
public class ShowPicture extends JFrame implements ActionListener {
private String link;
private JButton next;
private JButton prev;
private Image image;
public ShowPicture(String link) {
this.setSize(300, 200);
setLocationRelativeTo(null); //center
setVisible(true);
this.link = link;
this.setLayout(new FlowLayout());
prev = new JButton("prev");
next = new JButton("next");
URL url;
try {
url = new URL(link + "/front.jpg");
image = ImageIO.read(url);
} catch (MalformedURLException ex) {
Logger.getLogger(ShowPicture.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
Logger.getLogger(ShowPicture.class.getName()).log(Level.SEVERE, null, ex);
}
JLabel image_label = new JLabel(new ImageIcon(image));
image_label.setSize(100, 100);
this.add(prev);
this.add(image_label);
this.add(next);
pack();
}
but image is not scaled
how can i do?
I would scaled the image itself not the JLabel. Use :
image = ImageIO.read(url);
image = image.getScaledInstance(100,100,Image.SCALE_DEFAULT);
JLabel image_label = new JLabel(new ImageIcon(image));
Related
I'm making a project that when you hit the button, an image appears in a JPanel.
But when I hit that button, nothing happens.
How to fix this code?
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
// button sluiten van de deur
try {
writer.println("execute(lock, \"aepu04:SI-Test\");");
writer.flush(); // flushes the buffer
String path = "http://chart.finance.yahoo.com/z?s=GOOG&t=6m&q=l";
System.out.println("Get Image from " + path);
URL url = new URL(path);
BufferedImage image = ImageIO.read(url);
System.out.println("Load image into frame...");
JLabel label = new JLabel(new ImageIcon(image));
JPanel panel = jPanel1;
panel.add(label);
panel.setVisible(true);
} catch (Exception ex) {
chatTextArea.append("Message was not sent. \n");
}
I need to put a menu in a game, so I've created a frame called menuFrame and a panel called menuPanel. I've been able to get a button and a label with text to appear on this panel, but I can't get an image to display.
Here is the bulk of my code:
try {
JPanel menuPanel = new JPanel();
BufferedImage img = ImageIO.read(this.getClass().getResource("background2.png"));
JLabel menuLabel = new JLabel(new ImageIcon(img));
menuLabel.setSize(800, 540);
menuLabel.setLocation(0, 0);
menuLabel.setVisible(true);
menuPanel.add(menuLabel);
this.add(menuPanel);
menuPanel.grabFocus();
menuPanel.requestFocusInWindow();
} catch (IOException e) {
e.printStackTrace();
}
I've been messing with it for a very long time, and the image simply wont appear. I've tried using just ImageIcon and no BufferedImage and that didn't work. I put the image in the same package as the class.
You could do something like this:
ImageIcon imgIcon = new ImageIcon("background2.png");
JLabel menuLabel = new JLabel();
label.setBounds(0, 0, x, y);
label.setIcon(imgIcon);
try {
JPanel menuPanel = new JPanel();
BufferedImage img = ImageIO.read(this.getClass().getResource("background2.png"));
JLabel menuLabel = new JLabel(new ImageIcon(img));
menuLabel.setSize(800, 540);
menuLabel.setLocation(0, 0);
menuLabel.setVisible(true);
menuPanel.add(menuLabel);
this.add(menuPanel); //This might not work, try the name of the JFrame instance
menuPanel.grabFocus();
menuPanel.requestFocusInWindow();
this.revalidate() //Use the name of the JFrame if this is not a JFrame or if this.add(menuPanel); doesnt work
} catch (IOException e) {
e.printStackTrace();
}
This is my code
private static KeyEvent e;
private static String text1 = null;
private static String text = null;
public fysikdel() {
super("Fysikformler");
setSize(700, 502);
setDefaultCloseOperation(EXIT_ON_CLOSE);
init();
setResizable(true);
setVisible(true);
}
public void init() {
JPanel main = new JPanel();
JPanel p = new JPanel();
CardLayout c1 = new CardLayout();
JScrollPane scrollpane = new JScrollPane(p);
JPanel Mekanik = new JPanel();
p.setSize(700, 502);
Mekanik.setLayout(new FlowLayout());
//637*237
ImageIcon likformigrorelsei = new ImageIcon();
JLabel likformigrorelsel = new JLabel();
ImageIcon lagesenergii = new ImageIcon();
JLabel lagesenergil = new JLabel();
ImageIcon a = new ImageIcon();
JLabel aa = new JLabel();
ImageIcon b = new ImageIcon();
JLabel bb = new JLabel();
try {
likformigrorelsei = new ImageIcon(new URL("http://i.imgur.com/TZFkXYa.jpg"));
} catch (MalformedURLException e1) {
e1.printStackTrace();
}
likformigrorelsel.setIcon(likformigrorelsei);
try {
lagesenergii = new ImageIcon(new URL("http://i.imgur.com/TZFkXYa.jpg"));
} catch (MalformedURLException e1) {
e1.printStackTrace();
}
lagesenergil.setIcon(lagesenergii);
try {
a = new ImageIcon(new URL("http://i.imgur.com/TZFkXYa.jpg"));
} catch (MalformedURLException e1) {
e1.printStackTrace();
}
aa.setIcon(a);
try {
b = new ImageIcon(new URL("http://i.imgur.com/TZFkXYa.jpg"));
} catch (MalformedURLException e1) {
e1.printStackTrace();
}
bb.setIcon(b);
Mekanik.add(likformigrorelsel);
Mekanik.add(lagesenergil);
Mekanik.add(aa);
Mekanik.add(bb);
JPanel Tryck = new JPanel();
main.setLayout(new GridLayout(1,1));
p.setLayout(c1);
this.add(main);
main.add(scrollpane);
p.add(Mekanik, "1");
p.add(Tryck, "2");
c1.show(p, "1");
When I add more pictures I want them to fill up from left to right untill one row is filled, then fill the next row. At the moment it just continue to fill the first row.
If I add
scrollpane.setHorizontalScrollBarPolicy(HORIZONTAL_SCROLLBAR_NEVER);
it just removes the horizontal scroll bar but the pictures are still ending up on one row.
I dont know what is wrong. Thanks for any help!
So you put all your images in the Mekanik panel, which uses a FlowLayout. As the java tutorial states,
The FlowLayout class puts components in a row, sized at their preferred size
which is obviously not what you want. So you'll have to change the layout used by your panel.
To my mind, the GridLayout would be a better fit for your problem.
I'm working on this project in Java and need an image to display, along with a bio, and button that plays a song/sound. I finished the button and bio but I can figure out how to get the image to display in the NORTH part of the layout along with the button in the center part, any help would be great.
This is my error: The method add(String, Component) in the type Container is not applicable for the arguments (Image, String)
public void init() {
// image
myPicture = getImage(getCodeBase(), "sample.jpg");
// THIS IS WHERE MY PROBLEM IS vvvvvvv
add(myPicture, BorderLayout.NORTH);
add(bio);
paneSouth.add(play);
getContentPane().add(paneSouth, BorderLayout.SOUTH);
mySound = getAudioClip(getDocumentBase(), "sample.wav");
play.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mySound.play();
}});
}
public void paint(Graphics g){
g.drawImage(myPicture, 10, 10, this);
}
private JPanel paneSouth = new JPanel();
private TextArea bio = new TextArea("bio thing");
private JButton play = new JButton("Play");
private AudioClip mySound;
private Image myPicture;
}
EDIT:
public void init() {
// image
ImageIcon icon = new ImageIcon(myPicture);
JLabel myLabelImage = new Image(icon);
add(myLabelImage, BorderLayout.NORTH);
// bio
add(bio);
add(bio, BorderLayout.CENTER);
// sound
paneSouth.add(play);
getContentPane().add(paneSouth, BorderLayout.SOUTH);
mySound = getAudioClip(getDocumentBase(), "sample.wav");
play.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mySound.play();
}});
}
private JPanel paneSouth = new JPanel();
private TextArea bio = new TextArea("bio.");
private JButton play = new JButton("Play");
private AudioClip mySound;
private Image myPicture;
}
I guess you are using JApplet because you are using Swing components. Try something like this:
public class ImageApplet extends JApplet {
private JPanel paneSouth = new JPanel();
private JTextArea bio = new JTextArea("bio thing");
private JButton play = new JButton("Play");
private Image myPicture;
private ImageIcon icon;
private JLabel label;
public void init() {
try {
URL pic = new URL(getDocumentBase(), "sample.jpg");
myPicture = ImageIO.read(pic);
icon = new ImageIcon(myPicture);
label = new JLabel(icon);
} catch (Exception e) {
e.printStackTrace();
}
// add image
add(label, BorderLayout.NORTH);
// bio
add(bio, BorderLayout.CENTER);
// sound
paneSouth.add(play);
add(paneSouth, BorderLayout.SOUTH);
// here add your sound declaration and button event...
}
#Override
public void paint(Graphics g) {
super.paint(g);
}
}
And try change your TextArea for a JTextArea since you are only using swing components.
I've been searching for an answer, but everything else comes very close, but isn't the problem I'm having.
So my main class creates a new JFrame, adds a panel as the content panel, and I add a scrollpanel to that content panel.
Now I create some of my extending JPanel classes, add them to the scroll pane and see nothing but an empty frame.
And I have checked to make sure there is indeed a list of FTPFile's
Here is the main code:
public browser(ftpHandler _FTP) {
FTP = _FTP;
Panels = new ArrayList<JPanel>();
frame = new JFrame("File Browser");
frame.setContentPane(mainPanel);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setPreferredSize(new Dimension(750, 500));
frame.setSize(frame.getPreferredSize());
frame.setMinimumSize(frame.getSize());
mainPanel.setLayout(new FlowLayout(FlowLayout.LEFT));
listFiles();
frame.pack();
frame.setVisible(true);
}
public void listFiles(){
Panels.clear();
FTPFile[] list = null;
try {
list = FTP.listFiles();
} catch (Exception e) {
e.printStackTrace();
}
for(FTPFile file : list){
fileObject FO = new fileObject(file);
Panels.add(FO);
scrollPane.add(FO);
}
scrollPane.updateUI();
}
And my extended JPanel, fileObject
public class fileObject extends JPanel {
private FTPFile file;
private JLabel Label;
private ImageIcon Icon;
private int FileType;
private final int IconSize = 25;
private final Dimension panelSize = new Dimension(150, 40);
public fileObject(FTPFile FILE){
file = FILE;
FileType = file.getType();
this.setSize(panelSize);
this.setPreferredSize(panelSize);
this.setMinimumSize(panelSize);
this.setLayout(new WrapLayout());
switch (FileType){
case FTPFile.TYPE_DIRECTORY:
Icon = resizeImage(new ImageIcon(getClass().getResource("/com/taylor/48px/folder.png")),IconSize);
break;
case FTPFile.TYPE_FILE:
try {
String FileExtension = file.getName().substring(file.getName().lastIndexOf(".")+1);
Icon = resizeImage(new ImageIcon(getClass().getResource("/com/taylor/48px/"+FileExtension+".png")),IconSize);
} catch(Exception e) {
Icon = resizeImage(new ImageIcon(getClass().getResource("/com/taylor/48px/_blank.png")),IconSize);
}
break;
case FTPFile.TYPE_LINK:
Icon = resizeImage(new ImageIcon(getClass().getResource("/com/taylor/48px/_page.png")),IconSize);
break;
}
Label = new JLabel(file.getName(), Icon, JLabel.LEFT);
this.add(Label);
}
private ImageIcon resizeImage(ImageIcon II, int Size){
Image img = II.getImage();
BufferedImage resizedImage = new BufferedImage(Size, Size, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = resizedImage.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2.drawImage(img, 0, 0, Size, Size, null);
g2.dispose();
return new ImageIcon(resizedImage);
}
}
I got this working, it turns out I was had my panels set up wrong, they were setup like this:
JFrame
--mainPanel
----scrollPane
And I was adding my extended panel to the scrollPane
And this seemed to not work, so I added another panel inside the scrollPane and started adding my extended panels to this new panel and it started working!