i have an imageViewer and i want to change the imagePanel into a TabbedPane so i can have more than one image open at the same time but have each of them in a different tab and be able to add and remove the tabs as well.
what i have:
private ImagePanel imagePanel; //<< i tried to change the ImagePanel to JTabbedPane but it doesn't work and it gives error in other parts of the codes that i have.
// Create the image pane in the center
imagePanel = new ImagePanel();
imagePanel.setBorder(new EtchedBorder());
contentPane.add(imagePanel, BorderLayout.CENTER);
the code above is for the image pane where the image is displayed.
is it possible to change the image pane to a tabbedPane without changeing other bits in the code?
i have looked at alot of tabbedpane examples but i don't know how to combine the code with my code to get it to work but i did put a few code examples into my program but the frame changes to tabbedpane and not the image pane where the image is displayed. i want to change the inner frame to tabbed not the actual frame of the program.
any suggestions on how should i go about it or if you can show me a simple example that could work.
thank you
I imagine that your ImagePanel extends JPanel. You don't "change" this into a JTabbedPane, and in fact you can't, but rather you put it into a JTabbedPane. Please check out the tutorial on tabbed panes that will show you how to do this: How to use Tabbed Panes
One caveat: if you are using NetBeans drag-and-drop GUI creation tools to generate your Swing code, I advise you not to do this but rather to go through the Swing tutorials (one is linked to above) and learn to code Swing by hand. You won't regret this, and the extra knowledge gained can be used if later you need to create gui's with the NetBeans tool.
Related
I'm new to Java and actually designing the GUI for an application.
My main is a JFrame with 5 buttons and 1 panel which will have the "content", for the first button for example, I've designed a Jframe which has a JTabbedPane.
Now I would like to know how can I incorporate the content from that frame to the "content" panel when clicking on the button ?
I tried to use .add but I get:
java.lang.IllegalArgumentException: adding a window to a container
(seems we can't add Jframe to Jpanel).
I also tried the setVisible way but it doesn't meet what I need since it will hide the panel completely and I will get a tiny window with the buttons.
![Jframe content][1]
![Main Jframe with buttons and Jpanel to show the jframe content][2]
The code is generated by netbeans, and I forgot to mention that I did research on adding a Jframe into another Jframe but here isn't my problem at all.
I tried by changing the Jframe by JInternalFrame but clicking on button doesn't do anything.
Button has
contentPanel.add(new GestionUtilisateur());
So basically when you click on the "Gestion Utilisateur" button for example, you get that JTabbedPane that has to appear in the content area (which is blank here)
You should not be putting JFrames inside JPanels. If you have multiple panels you would like to display, depending on something like a button, look in to LAYOUTS.
In particular, it sounds like a CardLayout would work well for your needs. CardLayouts allow you to swap which panel is displayed in a frame by bringing it to the "front" of a list of panels. This would let you display your JTabbedPane on one button click, then click another to change the content pane.
JFrame can not be added in a JPanel.
use JInternalFrame
Make and hold references to JPanels containing your content. A JFrame is really just that, it's a frame (though you can add a single component to it).
You can't add a JFrame to a JPanel. If you want multiple components to be visible use layouts such as BorderLayout, GridBag, etc. Check out some of the Swing layout tutorials here.
Content should be designed as JPanel (you can design it with drag&drop just like JFrame) but if you really have to put a JFrame to JPanel for some reason, you can do it by
myJPanel.add(myJFrame.getContentPane());
however i would suggest modification of your program.
I'm quite new to Swing, and I'm programming an application with NetBeans' UI designer.
Now I have an JPanel called "editorPanel", and it must be able to display multiple things. (so, sometimes it has to display an image, and sometimes it has to display a text editor)
I have made separate panels for this, so say I'd have a JPanel called ImagePanel and one called TextPanel. It has to switch easily between them, so I tried this:
editorPanel = new ImagePanel();
But that didn't work.
So, what I want to do, is set an empty panel to a defined panel.
How can I make this work?
The proper way to achieve your goal is to using a card layout and switching panels accordingly.
You ca get some idea on how card layout stuff is working in here
I have an open-source java swing application like this:
http://i47.tinypic.com/dff4f7.jpg
You can see in the screenshot, there is a JPanel divided into two area, left and right area. The left area has many text links. When I click the SLA Criteria link, it will pop-up the SLA Criteria window. The pop-up window is JFrame object.
Now, I'm trying to put the pop-up window into right area of the JPanel, so that means no pop-up window anymore, i.e. when I click the SLA Criteria link, its contents will be displayed at the right area of the JPanel. The existing content of the right area of JPanel will not be used anymore. The concept is just same like in the java api documentation page: http://docs.oracle.com/javase/6/docs/api. You click the link in the left frame, you'll get the content displayed at the right frame.
The example illustration is like this:
(note: it's made and edited using image editor, this is not a real screenshot of working application)
http://i48.tinypic.com/5vrxaa.jpg
So, I would like to know is there a way to put JFrame into JPanel?
I'm thinking of using JInternalFrame, is it possible? Or is there another way?
UPDATE:
Source code:
http://pastebin.com/tiqRbWP8 (VTreePanel.java, this is the panel with left & right area divisions)
http://pastebin.com/330z3yuT (CPanel.java, this is the superclass of VTreePanel and also subclass from JPanel)
http://pastebin.com/MkNsbtjh (AWindow.java, this is the pop-up window)
http://pastebin.com/2rsppQeE (CFrame.java, this is the superclass of AWindow and also subclass from JFrame)
Instead of trying to embed the frame, you want to embed the frame's content.
There is (at least) one issue I can see with this.
The menu bar is controlled by the frame's RootPane.
Create you're self a new JPanel. Set it's layout to BorderLayout.
Get the menu bar from the frame (using JFrame#getJMenuBar) and added to the north position of you new panel.
Get the frames ContentPane and add it to the center position of the panel.
There is undoubtedly countless other, application specific issues you will run into trying to do this...
No, you don't want to "put a JFrame into a JPanel" and your illustration above doesn't demonstrate this either. Instead it's showing a subordinate window on top of (not inside of) another window. If you absolutely need to display a new subordinate window, I'd recommend that you create and display a JDialog. The tutorials will explain how to do this, or if you get stuck post your code attempt and we'll help you work with this.
Edit 1
You state:
I need to convert from the pop-up window style into the jpanel content style. It's just like the java api documentation page style: docs.oracle.com/javase/6/docs/api When you click the text in left frame, it doesn't show any pop-up, right? The content is displayed at right frame directly. So that's basicly my goal. The source code is quite big. I will try to paste the source code if possible.
What you are looking for is to simply implement a MouseListener in a JList or JTable, and when responding to the click get the content based on the selection made. This has nothing to do with placing a JFrame in a JPanel and all to do with writing the correct program logic. Again, display it in a modal JDialog -- but that's all secondary to your writing the correct non-GUI logic. You're really barking up the wrong tree here. Forget about JFrames, forget about JPanels for the moment and instead concentrate on how you're going to extract the SLA Criteria data when it is clicked on.
Edit 2
I think I see what you're trying to do -- instead of JFrames and JDialogs, use JPanels and swap them using a CardLayout which would allow you to swap views.
I had skimming the source codes, I saw that the AWindow.java has internal panel (APanel.java) to hold the window's content, and it also has a public method to return the content panel object (getAPanel()). With this, I can use it for fetching the window's contents into other container.
Finally, I decided to use JTabbedPane in the right area of VTreePanel for displaying the pop-up window's contents.
You cannot put a Jframe into a JPanel. Instead you should try to create a separate panel that has functionalities like your JFrame and embed that into your JPanel.
Since you can put a JPanel into another JPanel but not a JFrame into another JPanel
I am developing a small desktop application in Java using Netbeans. On my jframe i have various pannels and one scroll panes. The purpose of this JScrollPane is to show some visual elements to its users. I achieve this by following the below steps in sequence:
Drag and drop JScrollPane at desired location of my JFrame
Adjust the size of JScrollPane according to my needs.
Write a new java class and extend that class with JPanel
Override the public void paintComponent(Graphics g) method
Then i add that panel to above JScrollPane,
using following code:
JPanel jpnl = new myClass();
jScrollPane2.setViewportView(jpnl);
jScrollPane2.repaint();
Now every thing is working fine as per my requirements, the only thing which is lacking is that when my drwaing is big then no sroll bars are shown at JScrollPane. This is my first application and i don't know much about Java, so any guidence regarding what is missing would be highly appreciated
Remember to add the required component to the JScrollPane object, and the scroll pane object to the panel. Also, it could be that you need to change the scroll bar policy: use scroll pane's setHorizontalScrollBarPolicy() and setVerticalScrollBarPolicy().
Consult the JScrollPane documentation for these methods.
So I am working on a GUI application using the swing framework. In short, I have 3 JPanels that act as different views of my application. Now the problem is that no matter the order I add the JPanels to my JFrame, only the final JPanel I add resizes when I switch to that view.
Some relevant bits of code:
When creating the window, I first create each individual JPanel, and add it to the JFrame:
JPanel newPanel = new SomeClassExtendingJPanel();
this.jframe.add(newPanel);
Next, whenever I switch between views of the application, I hide the panel that is currently active:
jframe.validate();
jframe.repaint();
oldPanel.setVisible(false);
And then activate the to be shown panel:
jframe.validate();
jframe.repaint();
newPanel.setVisible(true);
Does anyone know what could be wrong?
To resize the JFrame with each swap, you could call pack() on it, but this is kludgy having a GUI resize all the time. A better solution is to use the mechanism that Swing has for swapping views -- a CardLayout. This will size the container to the largest dimension necessary to adequately display all of the "card" components.
Check out the CardLayout tutorial and the CardLayout API for more on this.
JFrame's ContentPane has implemented BorderLayout by Default, and there is possible to put only one JComponents to the one Area,
you have to change used LayoutManager or put another JPanels to the other Areas