I'm trying to make a buttom from an image on the JFrame using the ImageIcon and the addMouseListener that will replace the current image with another image by clicking it.
static JPanel jp = new JPanel();
final JLabel jl = new JLabel();
final JFrame jf = new JFrame();
ImageIcon image = new ImageIcon("image1.jpg");
jl.setIcon(image);
jp.add(jl);
jf.add(jp);
jf.validate();
JLabel button = new JLabel(image);
button.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
jl.setIcon( null );
ImageIcon image = new ImageIcon("image2.jpg");
jl.setIcon(image);
}
});
The GUI is displayed with image1.jpg, but the button does not work at all and I can't even test whether the replacement from image1 to image2 works. GUI will not do anything even if I attempt to click the image1.jpg displayed on the window.
Edit: Adjusted JLabel varaible to be final for now. Other similar questions intimate that this method should be working but I can't figure out what is wrong with the code.
Not really sure ActionListener works with JLabel either.
No you can't add an ActionListener to a JLabel. An easier approach is to make a JButton look like a JLabel, then you can add the ActionListener to the button:
JButton button = new JButton(...);
button.setBorderPainted(false);
button.setContentAreaFilled(false);
button.addActionListener(...);
but the button does not work at all
A mouse click is generated when a mousePressed and mouseReleased is received for the same mouse point. So if you move the mouse slightly the event will not get generated. Instead listen for the mousePressed() event.
Related
I want to create button without any borders or shadow, but an icon instead using java swing component. How can I accomplish this?
Real Button
JButton btnNewButton = new JButton("");
btnNewButton.setContentAreaFilled(false);
btnNewButton.setBorderPainted(false);
btnNewButton.setBorder(null);
btnNewButton.setIcon(new ImageIcon(path));
This will give you a real button without any borders around the given image to work with. Note that in this state the button doesn't have a "click animation" anymore. For such an animation you could use the .setSelectedIcon(selectedIcon);
Clickable Image
ImageIcon img = new ImageIcon(path);
JLabel button = new JLabel(img);
button.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
//Set pressed or something else
}
});
But this one just provide you a clickable Image and should only be used when a clickable Image without any other intentions is needed.
Note that this way is just a workaround.
im trying to change the icon of a jLabel named "mainDot". i have another folder in the source packages (named "Images") that contains the icons i want to put on the mainDot when I press it.
private void mainDotMousePressed(java.awt.event.MouseEvent evt) {
mainDot.setIcon(DOT_SMALL.jpg);
}
How would I be able to change the icon of mainDot?
public Test() {
JLabel t=new JLabel();
this.setLayout(new BorderLayout());
t.setIcon(new ImageIcon("Path to image goes here"));
this.add(t);
this.pack();
this.setVisible(true);
}
this one is working. and as suggested use an actionlistener to do it on button press
This question already has answers here:
How to find JLabel that was clicked and show ImageIcon from it?
(2 answers)
Closed 7 years ago.
I have a JFrame opening with 12 different pictures. I want to click on one and then in the new JFrame, show that same picture. In my code, shirts is my JFrame with the 12 pictures and I want the clicked picture to appear in the new JFrame called sizes. I made an ArrayList of type JLabel called select. Here is my code:
final JFrame shirts = new JFrame("T-shirts");
JPanel panel = new JPanel(new GridLayout(4, 4, 3, 3));
for (int i = 1; i < 13; i++) {
l = new JLabel(new ImageIcon("T-shirts/"+i+".jpg"), JLabel.CENTER);
l.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
l.setFont(l.getFont().deriveFont(20f));
panel.add(l);
select.add(l);
}//end of for loop
panel.addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent e){
sizes = new JFrame("Shopping");
sizes.setVisible(true);
sizes.setSize(500, 500);
sizes.setLocation(100,200);
shirts.dispose();
for(int i=0; i<12; i++){
if(e.getSource()==select.get(i)){
JLabel addition = newJLabel(newImageIcon(select.get(i).getText()));
//sizes.add(select.get(i));//Picture isn't added!!
}//end of if
}//end of for
}//end of method
});//end of listener
shirts.setContentPane(panel);
shirts.setSize(1000, 1000);
shirts.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
shirts.setVisible(true);
Start with How to Write a Mouse Listener.
Basically, you want to register a MouseListener with the JLabel which represents your picture and implement it's mouseClicked method.
You then want to get the Icon property of the JLabel that was clicked and pass that to your new frame, which you can simply use to set the Icon property of another JLabel
Something like...
addition.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
JLabel label = (JLabel) e.getComponent();
Icon icon = label.getIcon();
// Create new frame and pass it the icon value
}
});
as an example
You might also like to take a look at The Use of Multiple JFrames, Good/Bad Practice? and consider using either a CardLayout or JDialog instead of another JFrame ... which could become messy
You can use a JButton and make it look like a JLabel:
JButton button = new JButton( new ImageIcon("..." ));
button.setBorderPainted( false );
button.setContentFilled( false );
button.setFocusPainted( false );
button.addActionListener( new ActionListener()
{
#Override
public void actionPerformed(ActionEvent e)
{
JButton button = (JButton)e.getSource();
Icon icon = button.getIcon();
// do something with the Icon.
}
});
Then you can add an ActionListener to the button.
An ActionListener is more reliable than using a MouseListener and handling the mouseClicked event. The mouseClicked event is only generated when a mousePressed and mouseReleased event is generated at the same mouse point. So if the mouse moves by even pixel between the two event you will not get a mouseClicked event which users think is a random problem.
Try making each picture a JButton, or at least placing an invisible button behind each picture. Then, when they are pressed in the ActionListener extended class, have the new JFrame be created, with the picture large.
With NetBeans (Java), I am having problems in JLabel. I have assigned an image as the icon of that JLabel.
Problem - 1st:
I want to display some text (e.g - logout) below that icon (image). How to do this?
Problem - 2nd:
I want to display some text when mouse is rolled over that JLabel. What should I do?
So , please guys tell me how to these things by writing code.
I recommend reading the basic Oracle tutorials which describe in detail how to accomplish this. You can use a MouseMotionListener to determine when the mouse is rolled over the JLabel, and you can position the JLabel text underneath the Icon of the JLabel by setting its vertical text position as described in the JLabel Tutorial. This should have all been found with a simple internet search of your questions, something that your question suggests was not done (and should have been) before asking
1.
Create a JPanel that contains two JLabels. This way you can control the layout of the internal components.
I used BoxLayout with the parameter BoxLayout.Y_AXIS to get the label below the icon.
2.
Add a MouseListener using the method component.addMouseListener(new MouseAdapter() { ... });, you'll need to create a MouseAdapter and implement any methods you need (click here).
Here is a working example for you buddy... Adapt this however you need to.
Note: You'll need to change the file-path of the ImageIcon()
public static void main(String[] args) {
JFrame frame = new JFrame();
JPanel container = new JPanel();
JPanel iconLabelPanel = new JPanel();
String TEXT_FIELD_TEXT = "Hover over the logout label.";
JLabel icon = new JLabel(new ImageIcon("C:\\Users\\Gary\\Google Drive\\Pictures\\puush\\ss (2015-02-19 at 06.00.00).png"));
JLabel label = new JLabel("Logout!");
JTextField textField = new JTextField(TEXT_FIELD_TEXT);
//Add a mouse motion listener for the JLabel
label.addMouseListener(new MouseAdapter() {
#Override
public void mouseEntered(MouseEvent e) {
//Set text of another component
textField.setText("You're over Logout!");
}
#Override
public void mouseExited(MouseEvent e) {
//Set text of another component
textField.setText(TEXT_FIELD_TEXT);
}
});
//Add components and set parameters for iconLabelPanel
iconLabelPanel.setLayout(new BoxLayout(iconLabelPanel, BoxLayout.PAGE_AXIS));
iconLabelPanel.add(icon);
iconLabelPanel.add(label);
//Add components and set parameters for container
container.setLayout(new BoxLayout(container, BoxLayout.PAGE_AXIS));
container.add(iconLabelPanel);
container.add(textField);
//Set parameters for frame
frame.add(container);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.setSize(400, 400);
frame.setVisible(true);
}
how can i add components dynamically in a jpanel?
I am having add button when i click the button the components should be added to the JPanel.
my question is that adding a textfield and button to jpanel when i click on the add button the user can click on the add button any number of times according to that i have to add them to the jpanel. i have added to scrollerpane to my jpanel,and jpanel layout manager is set to null.
Just as you always do, except that you have to call:
panel.revalidate();
when you are done, since the container is already realized.
Use an ActionListener, you can use an anonymous class like this:
JPanel myJPanel = new JPanel();
...
b = new Button("Add Component");
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JLabel someLabel = new JLabel("Some new Label");
myJPanel.add(someLabel);
myJPanel.revalidate();
}
});