Add image to GUI - java

I'm trying to add an image to a JPanel in IntelliJ's GUI editor. I can't find anywhere that lets me do this.
Anyone have any idea?

if you want to add Image/ImageIcon to the GUI, then better way is put picture(s) to the JLabel, links to the tutorials contains examples for that, with for correct usage by LayoutManager and resiziable for/with Top-lavel Container

You haven't defined what "adding an image" means. Is this a background image and other components will be added on top. Do you want the image to fill the entire panel or should the image be painted at its actual size? The approach will be different depending on the answer. Maybe you can use an existing component or maybe you will need to create a custom component.
See Background Panel for a couple of approaches.

Related

Change size of JFrame according to user selected image

I'm about to write a program using Java and i want it to have the next behavior:
Start with a small screen, just one button (i'm going for the JMenuBar) for the user to select a image file (a country or state map)
Once selected the image file, i'll need to resize the frame to the size of the selected image, and put the image as background.
when the user clicks somewhere inside the frame (click on a state or city) the program will have to create a visual object there, a circle, square or any form in that coordinates.
will need also a listener in those objects to know when they are clicked.
Summary: User has to select an image and trace a graph on it.
I am not asking for the code to do this. I would like to have some ideas about which components use to achieve this since i have been reading and there are plenty of ways to set the background image and stuff. But, considering the requirements, can you recommend me which components to use? I am a bit short of time since i've been given only about a week to code this, otherwise i would try all the alternatives by myself.
Some answer like:
"use a label to set the background and then resize the frame by this way: (some stuff) and then you can create a class extending from JLabel to create the circles with the listeners...." that would be enough help
I hope I was clear, any idea is welcome
Many thanks!
If you're going to stick with Swing I would use a JFileChooser to select the image. Once you got the image you can easily resize the JFrame by using the frame.setSize(image.getWidth(), image.getHeight());
To listen for mouse clicks inside your JFrame you need to use a MouseListener, make sure to add it to the frame, I always forget doing that.
Not sure whether you've succeeded drawing images/shapes at all. If not, you need to use a JPanel, check this topic if you need extra help.
If you are going to use a "JFrame " then you should definitely use Swing JFrames JPanels, and JLabels (as well as any other JComponents you need.) to accomplish this. Use only one JFrame. Use JPanel as the content pane/background for your JFrame and add everything else to it. But I would also suggest learning and using JavaFX because its the newest and I think it would be the easiest to use to do something like this. But if you only have a week and you know some swing use what you know. If you need more information post some code. Or ask a more direct question.

adding multiple images in java gui

I'm trying to add multiple images to JLabel. The problem is that it is impossible to add more than one image, and I don't know how many images I will need in advance.
How can I overcome the problem? mabye not JLabel..
Thanks
1) Show us what you've done so far :)
2) Short answer is that you can't. JLabels and JButtons can only have one image associated. So you can either have multiple dynamically created JLabels or JPanels.
3) I don't understand why you want the image in a JLabel.
SOLUTION
Create a JPanel called container and give it a grid layout. Dynamically create more JPanels (pnl1, pnl2, etc) and add them to container. Each image should be added to pnl1, pnl2, etc.
Create a class image panel that extends jpanel as your container for each image.
If you don't know during compile time, I assume you know during runtime? Which means you just keep creating new panels until you run out of images.
In your Image Panel class you'll also want to assign an id for each image panel in the event that you want to be able to utilize or change the content/image later. So you'll find panels by id and not by variable name because those will all be dynamic and you won't have them.

Small Window Over Components

I already look at java library and dont know what to use to do this..
I already tryed JInternalFrame but thats not what I really want.. because it needs to be added to a JDesktopPanel right??
And in my program I have a JFrame with content pane using BorderLayout..
Then on borderlayout center I have a JTextArea, on borderlayout east I have a list.. and on borderlayout south I have a JPanel..
What I want is, when I do a certain action, it will pop up a "mini window" where I need to choose something.. u see?
and if I create JDesktopLane it will overlap what I have on the container..
the window will be made by my like a color chooser pallete , like a grid with colors.. and a label on top saying some text..
I just dont know how to make a "window" over the other components, and users can still drag over the frame, and interact with all the other components.. the jtextarea and such..
I guess you understood, thanks alot in advance!!
If u dont understand something please tell me, I really want to do this :)
Just dont know what to use..
Thanks again ;)
Have you tried JDialog?
It's because Jdialog are not component to be add in a JFrame, it's an independant thing running on it's own
if you use JDialog, the construct parameter parent indicate wich frame the JDialog is related to.
The typical class for this task is JWindow, a borderless top-level window that can be freely positioned. You could use SwingUtilities.getPointFromComponent to get the screen coordinates for a realized coordinate.
Top-level windows (JFrame, JDialog, JWindow) are not added to containers. They can get other windows as parent.
I dont want to use another JFrame.. that is kinda bad for code, its a small window with a simple function..
Structure your code so you can read it, others can read it, and you can debug it easily (the latter is a result from the first). A low class count is useless and -most of the time- contraproductive.
Why should another JFrame (or other window) be bad?
If you absolutely want to avoid opening top level windows (e.g. to avoid applet warning icons or to implement a special kind of user interface) you could use a JLayeredPane to add additional JPanels above your existing GUI elements.

Draw a JPane in JFrame

I have search on internet and found a lot of information about drawing in Java. But when I add new JFrame class in Netbeans then I cannot add a own JPane in the JFrame. Hopefully somebody can help me with this issue/question.
Drawing the JPane is possible when I make a new JFrame in a class, but I would like to use the design view in Netbeans. That is not possible when I make a new JFrame.
I look forward to receiving an answer.
It looks like you made a JFrame instance yourself, and then tried to add a JPane(l) to it using NetBeans swing builder. This wont work. Try creating a new swing class using the swing builder and let netbeans make the Jframe.
Also, make sure you set a correct layout for your JFrame.
Also, like BenCole said, I think you mean a JPanel, not a JPane.
As an alternative, create your own top level container and add your designer panel to its content pane. Here's a simple example. In this way you can limit the use of the designer to a single panel, while you explore other layouts.

Using JMF, How can I add a video to the background of a JPanel?

I am working on a GUI. It is strictly for Sign-in. I have it working perfectly, but I would like to add a video to the background of the Panel. Is there any way of doing this without having to make two separate JPanels? And if I had to use two, what would be the best way to do this?
I don't see why you would have to use two JPanels. It seems like whatever JPanel contains your login that you want a video in the background you could just modify. However, from a layout standpoint you might want the video as a separate component just to have more control and simpler code.

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