Now i already have a panel with 25 Jbutton and its shows on the frame, but i neeed other panel with other information so i created another panel and add to this a button for example. But the location of this a dont know how to set it. Some advice for this. Remember i have other panel and i want the new one on the left side from panel with buttons
JPanel panel = new JPanel();
panel.setSize(100,100);
jPanel.setBorder(new TitledBorder(new EtchedBorder(), "hi"));
JButton b = new JButton("test");
panel.add(b);
frame.getContentPane().add(panel);
To add your new panel on the left hand side of the JFrame, you can simply add it to the BorderLayout.WEST location:
frame.add(panel, BorderLayout.WEST);
hello now i already know how to set it, at the moment to add to the contentpanel add .setlocation(x,y) it works for me. Play with the pixels and make your frame as you want
Related
I recently found out that you can put a JPanel inside another JPanel, I tried it and it didn't quite do what I expected.I'm trying to have one button in the center and one button on the bottom right of the panel, I'm using a BorderLayout for all my panels.When I tried using two panels inside the center panel, the two panels were on the same line, but I've coded that one needed to be on the top and one on the bottom.Does anyone know how I could resolve this?
Sorry for not adding the code in the place, wasn't sure and I had already deleted it so I quickly made this, it is the same code I used in my project.
My code:
JFrame frame = new JFrame();
JButton btn = new JButton();
JPanel center = new JPanel();
JPanel top = new JPanel();
JPanel bot = new JPanel(new FlowLayout(FlowLayout.RIGHT));
bot.add(btn);
center.add(top, BorderLayout.PAGE_START);
center.add(bot, BorderLayout.PAGE_END);
frame.add(center, BorderLayout.CENTER);
When I use this code, "bot" is going to be displayed on the right of "top".
I think it has to do with the layout of "center" but I'm not sure.
Set the LayoutManager of center to BorderLayout, with this method:
center.setLayout(new BorderLayout());
I want to add two jPanels to a JFrame side by side. the two boxes are jpanels and the outer box is a jframe
I have these lines of code. I have one class called seatinPanel that extends JPanel and inside this class I have a constructor and one method called utilityButtons that return a JPanel object. I want the utilityButtons JPanel to be on the right side. the code I have here only displays the utillityButtons JPanel when it runs.
public guiCreator()
{
setTitle("Passenger Seats");
//setSize(500, 600);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container contentPane = getContentPane();
seatingPanel seatingPanel1 = new seatingPanel();//need to declare it here separately so we can add the utilityButtons
contentPane.add(seatingPanel1); //adding the seats
contentPane.add(seatingPanel1.utilityButtons());//adding the utility buttons
pack();//Causes this Window to be sized to fit the preferred size and layouts of its subcomponents
setVisible(true);
}
The most flexible LayoutManager I would recommend is BoxLayout.
You can do the following :
JPanel container = new JPanel();
container.setLayout(new BoxLayout(container, BoxLayout.X_AXIS));
JPanel panel1 = new JPanel();
JPanel panel2 = new JPanel();
//panel1.set[Preferred/Maximum/Minimum]Size()
container.add(panel1);
container.add(panel2);
then add container to object to your frame component.
You need to read up on and learn about the layout managers that Swing has to offer. In your situation it will help to know that a JFrame's contentPane uses BorderLayout by default and you can add your larger center JPanel BorderLayout.CENTER and the other JPanel BorderLayout.EAST. More can be found here: Laying out Components in a Container
Edit 1
Andrew Thompson has already shown you a bit on layout managers in his code in your previous post here: why are my buttons not showing up?. Again, please read the tutorial to understand them better.
When I run my program I log in and then it goes to the main menu, from the main menu it should then go to the store room when store button is pressed but nothing shows up.
Here is the code to change jpanels
jPanel2.setVisible(false);
remove(jPanel2);
controlPanel = new JPanel();
ShopStock panel = new ShopStock();
controlPanel.add(panel);
controlPanel.setVisible(true);
What I tried to do is make the current jpanel visibility set to false, then I removed it from the screen, I then added a new jpanel to the screen, added the new class to the panel and made it visible, but nothing appears when the store button is pressed.
You need to add the new panel to the container. I suppose you are extending a JFrame or JPanel because you have the remove(jPanel2);
jPanel2.setVisible(false);
remove(jPanel2);
controlPanel = new JPanel();
ShopStock panel = new ShopStock();
controlPanel.add(panel);
controlPanel.setVisible(true);
add(controlPane);
validate(); //Or revalidate(); if validate doesn't work.
Hope it helps, it would be a good idear to check the CardLayout as RealSkeptic told you.The CardLayout is designe to interchange different panels and will have a better behaviour.
I'm working right now on a project, and I can't find a solution for my problem.
So here is my problem: I have a JFrame, then I add a container JPanel, and I add 2 other JPanel to this container panel , first panel (InputPanel) is for user input, second panel (Board) for displaying the specified algorithm based on the user input.
But the displayed algorithm is too large, so I thought I will add a JScrollPane to the DisplayPanel, but it didn't worked like I thought it would have. Here is a picture, the red rectangle is the area what changed after I added the JScollPane:
Notice that at my Board class I override the paintComponent(Graphics g) to draw the algorithm.
My code in the main frame:
container = new JPanel();
container.setLayout(new BorderLayout());
board = new Board();
container.add(board, BorderLayout.CENTER);
inputPanel = new InputPanel(board);
container.add(inputPanel, BorderLayout.SOUTH);
pane = new JScrollPane(board);
pane.setViewportView(board);
pane.setPreferredSize(new Dimension(700, 0));
container.add(pane, BorderLayout.WEST);
add(container);
My initial plan was to add a horizontal scrollpane to the Board panel. Can somebody post an example code, or point out for my problem pls?
You added the board twice to container. Add the JScrollPane to the center of container, and continue to pass board to the constructor of your JScrollPane. Don't add the board individually to the container if you want to add it via a JScrollPane.
I have a simple swing application which consists of a JLabel and three buttons. The three buttons are in their own JPanel which is in a JFrame along with the JLabel. The JPanel uses flowlayout manager to arrange the buttons horizontally and the JFrame uses the BorderLayout manager to arrange the JLabel and JPanel vertically.
My problem is when I launch the application, during the course of use the text on one of the buttons changes which increases its width. However, the window doesn't resize to accomdate this and one of the buttons disappears. I thought about calling pack() again, but the JFrame is a local variable in my constructor, also, I shouldn't have to tell my program to resize, right? I haven't been able to find anything on google or here to help me but there must be a simple solution, what am I missing? Code is below.
playButton = new JButton("Play");
pauseButton = new JButton("Pause");
stopButton = new JButton("Stop");
curTrackLabel = new JLabel("No Track Selected");
JFrame myFrame = new JFrame("MediaPlayer");
myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
myFrame.setTitle("MediaPlayer");
myFrame.setLocation(400,300);
JPanel topPanel = new JPanel();
topPanel.setLayout(new BorderLayout());
myFrame.add(topPanel);
JPanel buttonPanel = new JPanel(new FlowLayout());
buttonPanel.add(playButton);
buttonPanel.add(pauseButton);
buttonPanel.add(stopButton);
topPanel.add(buttonPanel, BorderLayout.CENTER);
topPanel.add(curTrackLabel, BorderLayout.NORTH);
playButton.addActionListener(new playButtonHandler());
pauseButton.addActionListener(new pauseButtonHandler());
stopButton.addActionListener(new stopButtonHandler());
myFrame.pack();
myFrame.setVisible(true);
Maybe try
((JFrame)myButton.getTopLevelAncestor()).pack();
Where myButton is the button whose text is modified during execution.
As with learning any GUI software, experimentation is best. Try messing with BorderLayouts with nested JPanels.
Ultimately, you use JPanel with a BorderLayout (Flow Layout is OK but really when resizing the window, it epically fails). See http://download.oracle.com/javase/tutorial/uiswing/layout/border.html to learn more about BorderLayouts.
Now for your layout scheme it should be something along the lines of:
Top Level Container: JFrame
JFrame contains a JPanel (Call this
JPanel 1) with a BorderLayout.
The three buttons should be in a
SEPARATE jPanel (JPanel 2). JPanel
1 should add the three buttons as
BorderLayout.CENTER. In this way,
the window will resize if the button
changes its width and/or hright.
The JLabel should be added as
BorderLayout.LINE_START.
The tutorial at: http://download.oracle.com/javase/tutorial/uiswing/layout/border.html should help you with this. But in general, use the following:
Use JPanel and nest JPanels as necessary
BorderLayout.CENTER will accomodate size changes---this is the key! (Experiment with this)
JFrame should only be used as a top level container (for more complex GUIs, this is true).
If you require more flexibility, check out JGoodies: http://www.jgoodies.com/ . This is more along the lines of creating forms.