So I am making a game, and I want to know if it is possible so when lets say "You created a fire" it deletes that line and then displays "Your fire turns into ashes".
two more,
I want to make a jframe background, and let's say I "login" the background disappears, and a new background comes in(but the game, not a background).
I want to add a image icon( already added) (IMAGE = FIRE) it deletes that image and a new one appears( IMAGE = ASHES), how can I do this?
public class FireLabel extends JPanel {
public LabelDemo() {
super(new GridLayout(3,1)); //3 rows, 1 column
JLabel label1;
//Create the first label.
label1 = new JLabel("You created a Fire", JLabel.CENTER);
//Add the labels.
add(label1);
add(label2);
add(label3);
}
The context is a little light, however.
For swicthing from one view to another, I would suggest using a CardLayout, which would allow you to change from the login screen to the game screen.
If you're using JLabel as you primary output...simple change the text or icon using setText or setIcon as required...
To change that, use JLabel.setText. You will then have to call validate for the change to take effect.
I recommend swapping out the content pane for this. Put the login screen in a JPanel and set that as the content pane, then when needed, change the content pane to a second JPanel for the game.
Use the same technique as #1. Use a JLabel to display the image.
Related
I'm trying to make a visual novel using Java Swing, and so far it has been going smoothly. I'm using a JLabel that is attached to a JPanel to make the background image, and it starts good: image of a background behind a textbox + choice buttons, but when I try to update the image using Game.backgroundLabel.setIcon(newBackground);, it brings the background label to the very front: image of a background in front of the textbox, with only one of the three buttons showing. I'm new to the entirety of Java Swing, and mediocre at Java, but I'll try to include only the code that I believe to be relevant.
FROM THE MAIN CLASS (Game.java):
Container con;
JPanel backgroundLabel;
JLabel backgroundLabel;
// Creates background
backgroundPanel = new JPanel();
backgroundPanel.setBounds(0, 0, 800, 600);
backgroundLabel = new JLabel();
backgroundPanel.add(backgroundLabel);
con.add(backgroundPanel);
FROM A DIFFERENT CLASS (Story.java):
ImageIcon inCarBackground = new ImageIcon("C:\\Users\\kiwid\\eclipse-workspace\\FatuiBusiness\\backgrounds\\inCarBackground.png");
ImageIcon scaraSprite = new ImageIcon("C:\\Users\\kiwid\\eclipse-workspace\\FatuiBusiness\\sprites\\ScaraSprite.png");
This first update works, and the JPanel stays in the back where I added it in the Game.java class, as shown in the first image.
public void gameStart() {
position = "inCar00";
Game.nameLabel.setText("");
Game.mainTextArea.setText("My name is Lumine. I’ve recently sided with the Fatui - a huge mafia\norganization - through Scaramouche, who I befriended in Teyvat\nUniversity. I’m on a mission for the Fatui to steal a Blue Diamond\nring that once belonged to the Tsaritsa herself.");
Game.backgroundLabel.setIcon(inCarBackground);
Game.choice1.setText("");
Game.choice2.setText(">");
Game.choice3.setText("");
}
However, this update seems to change the order of the JPanel, and brings it to the front of the screen.
public void inCar01() {
position = "inCar01";
Game.mainTextArea.setText("Here with me are Tartaglia, Scaramouche, and Mona. Or, as I’m\nsupposed to call them here, Childe, Balladeer, and the Prophesizer.");
Game.backgroundLabel.setIcon(scaraSprite);
}
I've searched online for a solid 2 hours, but can't find anything good. I've read a little bit about JLayeredPane, but it seems like that revolves around user input, and when I try to use it, it says that I cannot add a JPanel to it.
Thank you all so much in advance! Please tell me if there's any other code I need to include, or if there's any code that I did not need to include (so I know for the next time I need help here).
strange thing, i want to add text field next to the label. When i'm doing that it's not reacting on .setLocation command and background color does not change. Dont know why.
But when i set frame Layout to null , than background command working and changing the color , but text field are not showing. Strange. i tried with adding text field through panel, not working, by simple frame.add(textField) , not working.
public class EcrWindow extends JFrame {
JFrame ecrFrame;
JLabel ecr;
static JTextField ecrTitle;
public static void main(String[] args)
{
new EcrWindow();
}
EcrWindow()
{
JPanel p = new JPanel();
ecrFrame = new JFrame ("ECR WINDOW");
ecrFrame.setExtendedState(JFrame.MAXIMIZED_BOTH);
ecrFrame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
ecrFrame.setResizable(true);
ecrFrame.getContentPane().setBackground(Color.RED);
//ecrFrame.setLayout(null);
ecr = new JLabel("Emergancy Change title");
ecr.setSize(ecr.getPreferredSize());
ecr.setLocation(100,50);
ecrFrame.add(ecr);
ecrTitle = new JTextField();
ecrTitle.setColumns(30);
//ecrTitle.setSize(ecrTitle.getPreferredSize());
ecrTitle.setLocation(150,50);
p.add(ecrTitle); // adding text field to the panel, and panel adding to the frame
ecrFrame.add(p);
// ecrFrame.add(ecrTitle);
ecrFrame.setVisible(true);
}
}
The ContentPane of the Frame is not visible as soon as you add the Panel p to the frame. The content pane will be hidden by the panel which will consume the whole available space in the frame.
When you set the Layout to null, you do not see the Panel p any more as there is no information where it is rendered in the frame (the TextBox should also disappear when you set the Layout to null). This is why the red background is visible then.
Please try to add the following line to your code before you add the Panel p to the frame:
p.setBackground(Color.RED);
Then you should see a red background which is actually the Panel p.
Regarding the layout, you shouldn't use setLocation(). It is much better to use a different layout mechanism with a proper LayoutManager.
See also this answer.
You can use setLocation() if you use absolute positioning. But that would mean that you effectively write a layout manager by hand. I would advise you to read the guide Laying Out Components Within a Container - there are various explanations and examples you can build up upon.
I've been fruitlessly searching the internet and nothing that people suggest seems to have any effect for me.
I have a JFrame which I'm trying to put a JPanel in. That JPanel ideally would have a JLabel with an imageicon as the background and a set of buttons in its own Jpanel in the foreground. The issue is every type of layout manager I've seen suggested just does not work as advertised for me. The best I've gotten to work so far is this approach:
public MenuBackgroundPanel(AsteroidsFrame frame)
{
this.gameFrame = frame;
this.setLayout(new OverlayLayout(this));
ImageIcon image = new ImageIcon(getClass().getResource("/resources/background1.gif"));
imageLabel = new JLabel(image, JLabel.CENTER);
mp = new MainMenuPanel(gameFrame);
mp.setMaximumSize(new Dimension(300,200));
this.add(mp);
this.add(imageLabel);
this.setVisible(true);
}
Unfortunately, I'm getting really strange alignments and trying to set location on the background (to actually get it to start at the JFrame's (0,0) or moving the button panel just seems to have no effect. Printing the location of each object says they're both at (0,0) but the image I'll link shows this is just not the case. My point is, I've tried things like JLayeredPane or setting the JLabel as the contentpane of the Jframe and making it transparent but nothing seems to do anything. One or the other of the two objects just covers the other completely.
As you can see the objects are not at all aligned.
Could anyone help me with this?
That JPanel ideally would have a JLabel with an imageicon as the background and a set of buttons in its own Jpanel in the foreground
Easiest way for something like this when the child panel is fully contained in the label image is to just set the layout manager of the JLabel and then add your components to the label.
JLabel background = new JLabel( new ImageIcon(...) );
background.setLayout( new GridBagLayout() );
JPanel buttons = new JPanel();
buttons.setOpaque( false );
buttons.add(...);
background.add(buttons, new GridBagConstraints() );
Now the button panel will be centered on the label.
As you can see the objects are not at all aligned
If you want to use the OverlayLayout then you need to play with the alignmentX/Y properties of each component. You would probably want to set them both to .5. Check out: Java Layout with Component always in Top Right for an example of how changing these values can affect the layout.
In my code I have a JFrame that opens up a main menu, in that menu you can click options, which will take you to the options menu. On that options menu I want to create a back button that will position itself somewhere in the top left corner of the screen. When I run the program and go to the options menu the JButton does not appear. Something must be wrong with my code. Any help? Below is where I first declare the JButton.
static JButton optionsBackButton = new JButton("<html><font size = 5
color = green>Back</font></html>");
Here is the other part of the code that has to do with the JButton.
//Options Menu
JPanel optionsPanel = new JPanel();
JLabel optionsOptionsTitle = new JLabel("<html><font size = 7 color = blue>Options</font></html>");
JPanel optionsOptionsTitlePanel = new JPanel();
JPanel optionsBackButtonPanel = new JPanel();
optionsPanel.setLayout(null);
optionsBackButton.setBounds(100,100,50,50);
optionsBackButtonPanel.add(optionsBackButton);
optionsOptionsTitlePanel.add(optionsOptionsTitle);
optionsPanel.add(optionsOptionsTitlePanel);
optionsPanel.add(optionsBackButtonPanel);
optionsBackButton.addActionListener(this);
//Add panels to the card
panel.add("Home Screen", homePanel);
panel.add("Options Menu", optionsPanel);
//card.add("Game screen", gamePanel);
cardLayout.show(panel, "HomeScreen");
contentPane.add(panel);
Your problem is stemming from your use of null layouts. Note:
JPanel optionsBackButtonPanel = new JPanel(); // holds the back button
// but never given a size
optionsPanel.setLayout(null); // uh oh,.... bad news
optionsBackButton.setBounds(100,100,50,50); // yes you set the bounds of the button
optionsBackButtonPanel.add(optionsBackButton);
optionsOptionsTitlePanel.add(optionsOptionsTitle);
optionsPanel.add(optionsOptionsTitlePanel);
optionsPanel.add(optionsBackButtonPanel); // again, optionsBackButtonPanel
// has been never given a size or location/bounds
optionsBackButton.addActionListener(this);
So you set the bounds of the button and add it to a JPanel that uses the default FlowLayout, and so the bounds are meaningless. Then you add that JPanel, whose bounds you never set, to a JPanel that uses null layout. So the optionsBackButtonPanel will never show.
Solution: Don't use null layouts, but instead learn and use the layout managers.
While null layouts and setBounds() might seem to Swing newbies like the easiest and best way to create complex GUI's, the more Swing GUI'S you create the more serious difficulties you will run into when using them. They won't resize your components when the GUI resizes, they are a royal witch to enhance or maintain, they fail completely when placed in scrollpanes, they look gawd-awful when viewed on all platforms or screen resolutions that are different from the original one.
Start here: Laying Out Components in a Container Tutorial
I want to make JButton from image. But when i do it like this:
private void AddMainActionsButtons(Container powZawartosci){
JPanel mainActionButtons = new JPanel();
JButton applyButton = createImageButton("obrazki/apply.png");
mainActionButtons.add(applyButton);
powZawartosci.add(mainActionButtons);
mainActionButtons.setBounds(150,530,400,90);
}
private JButton createImageButton(String imagePath){
ImageIcon icon = uploadImage(imagePath,"");
JButton button = new JButton(icon);
return button;
}
JButton looks bad, because image is inside button component, and in fact I got image on image. How can I create as big JButton as my image, and how to cover it by image in 100%. In other words: how to make my image be a Button?
You need to take the space out of the buttons by removing the border. See this answer for details.
Seen above is the single image split into 9 parts. The N/S/E/W are buttons (East is activated - shown with a red border) and the rest are labels - each containing the relevant part of the original image.
See also this answer for a version that uses simpler images with JToggleButton instances.
Have you tried setting the background to a transparent color?
This will remove the funky grey border around your image that often looks bad.