So my program creates a MigLayout GUI and has a bunch of JLabels that are given images on creation. Here you can see what the final result is right now:
The images are too big and go over the size of the JPanel they're contained in. It is simply creating it to be the size that the original image was and then display that, however, it's obviously an issue. Is there a way I can fix the size so it will try to fit every component in the GUI?
For starters, I want to ensure that the blue portion does not get shifted like that, I want it to keep to the size it was set as (half the height). I also want the images to take up the maximum size they can with keeping the aspect ratio of the original image.
I've tried setting the JLabel's size and preferred size, I've tried some attempts with MigLayout giving it paramaters when I tell it to add the JLabel, neither have worked for me. I'm entertaining the idea of extending JLabel and writing something to fix it, but not entirely sure how to go about that. I know I could overwrite paint but not sure what I'd have to actually do.
My JPanel is set as follows:
JPanel jpCards = new JPanel(new MigLayout("insets 0, gapx 0, gapy 0, wrap 7", "grow"));
My cards are being added without additional parameters and created just by giving it pictures of the size they were displayed.
Just to clarify, I need the actual JLabel's size to be changed, not just what's contained inside, because they will have mouse listeners later on. If only the image changed, I'll have problems with the mouse listener detecting itself inside a JLabel's that it doesn't look as if it should
I solved this by instead changing the size of the icon before making the JLabel.
I've found that in Java, when you create a JLabel given some sort of image, it will fit the size of the JLabel to be that of the image you give it. So instead of creating the JLabel given the original image, I scale it first using the dimensions of the screen, then create a JLabel out of it.
There's still some work to be done since I want the user to be able to resize the screen and have the image resize. I'll have to spend some time figuring out how I can get it to resize, but it's not a major concern.
Related
So, for example, I created a text field.
Tried to resize it
But once I release the mouse, it gets back to its original size
So how do I do it? How do I resize elements? And yes, I tried to change the minimum size, maximum size, preferred size but it does not work either, nothing happens.
You can do setLayout(null) on the parent or setPreferredSize on the components, either of which will allow you to resize your Components. But the best answer is to set your Font size to a larger size (setFont(...)) which will cause them to become bigger (have larger values in getPreferredSize) automatically.
JTextField tf = ...;
tf.setFont(tf.getFont().deriveFont(tf.getFont().getSize() * 2));
Hi I am trying to increase the size of all icons in the GUI window instead of individually, I know the icons may get a little blurred but that is fine.
Currently all the icons are saved in a icon folder, So is it possible to increase the size of all the icons in one go instead of one by one.
This the code which increases the size of icons individually.
Resources.getIcon(iconName).setPreferredSize(new Dimension(40, 40));
The best practice for this is to scale your Image right after loading, and before you create the ImageIcon with it
is there a way to show an image larger than the small imageIcon?
I have a 64x64 png image that I am trying to show on a button (take up the whole button).
but when I use
ImageIcon icon = new ImageIcon("somePath");
JButton btnBuildStructure = new JButton(icon);
the image that is shown is only the 16x16 in the top left corner of the image I want shown
how do I do this?
I want it to look like this
The JButton should naturally size to an optimal preferred size that shows the entire icon. If this is not happening, then you are likely restricting the size of the JButton artificially. The solution: use the layout managers well, call pack() after adding all components and before setting the GUI visible, avoid null layouts, call revalidate() and repaint() on containers if you change any components, or their sizes or preferred sizes (such as if you change an icon while a program runs).
I just recently started using Swing to create GUIs for programs, and it's been pretty fun to mess around with so far. However, I'm having an issue with a JPanel with the layout set to gridLayout. Right now it looks like this:
The grid on the right is a JPanel set to a GridLayout, with each cell being a bordered JLabel. The options on the left are also inside a JPanel, and the left JPanel and right JPanel are nested in a GridBagLayout set on a JFrame.
Essentially, my problem is that I want to "scale" the grid on the right so that each cell is a certain height and width. The grid itself will have a variable number of rows and columns, which are set when the program first starts up. Eventually, I plan to have the right JPanel in a JScrollPane (if that's how that works...), so I'm not really concerned about whether or not all of the grid shows up onScreen.
I tried setting the fill value for the gridLayout to "BOTH" and it gave me the following result:
This is closer to my intention, but I wanted the actual ImageIcon in the JLabels to fill the entire JLabel. Additionally, I would want the JLabels to be the same height and width. However, I don't know exactly how to do that. I've been messing around with it for a while now, and I'm not sure if I'm just too much of a noob with Swing, or if I'm missing something in the documentation.
In the end, I'd like the grid cells to be a fixed height and width, no matter the number of cells, and no matter whether it goes offscreen or doesn't fill it.
(Also, I just thought, maybe it's not the best idea to code this and then shove it in a JScrollPane later and expect it to perform the same.... I guess I'll just see what happens.)
but I wanted the actual ImageIcon in the JLabels to fill the entire JLabel.
Check out Darryl's Stretch Icon which will allow the icon to resize to file the space available for the JLabel.
I'm using a borderLayout to arrange my components in a JFrame and a Box(BoxLayout.X_AXIS) to put buttons next to each other. But it creates two problems:
I want the buttons to have the same size, but it automatically resizes them to fit the text within them (especially annoying when I change the text inside a button at runtime)
I want the buttons to have a little bit of space between them (let's say 10 px)
Is this possible using the borderLayout, or do I need to use the setLayout to null? And if so, wouldn't this screw up the original placement of the buttons in the frame? Or would this still be dealt with by the Box which is placed with the borderLayout?
A couple of suggestions
Try setting the preferredSize to a suitable Dimension value
If that doesn't work, try also setting the maximumSize and minimumSize to this same Dimension value
If that still doesn't work, change the buttons' layout manager to a GridBagLayout. The advantage of this layout manager is that it lets you control the layout's behaviour in minute detail. The disadvantage is that you usually need to configure a large number of properties on the GridBagLayout in order to get the desired behaviour. I'd advise checking out a GridBagLayout tutorial first, as it's a reasonably complex beast.
If you want them to have the same size then just add the buttons to a GridLayout and they will automatically be sized to the largest text string. You can also specify a gap between components.