Is there a way to "ignore" weather the text of a button fits or not so in the case it doesn't fit, it doesn't display "..."?
I'm making a game that has a grid of buttons and I'm using the chess unicode characters as the text on these buttons. With small fonts they show up but they are really small. But with larger fonts, java "thinks" they wont fit and displays them as "..." even thought they would definitively fit.
The code that generates the buttons:
jPanel.setLayout(new GridLayout(13, 13));
tab = new JButton[13][13]; //Tablero
for (int j = 0; j <= 12; j++) {
for (int i = 0; i <= 12; i++) {
JButton jButton = new JButton();
jButton.setText("♟");
jButton.setBackground(getColor(i, j));
jPanel.add(jButton);
tab[i][j] = jButton;
//jButton.setFont(new Font("TimesRoman", Font.PLAIN, 14));
jButton.setForeground(Color.pink);
}
}
If you see "..." it means that the size of the component is too small to display the text properly. This means you are overriding some property of the button:
You are using a null layout and manually specifying the size
You are using a layout but you have used setPreferredSize()
In these cases the button will not paint properly.
You can have the chess piece occupy more space of the button by changing the margin of the button:
JButton button = new JButton(...);
button.setMargin( new Insets(5, 5, 5, 5) );
but you still have to fix one of the above two problems so that you are using Swing layouts properly.
Related
JAVA Swing Problem
I want to create a list of JButtons based on a list of strings, which represents the button text.
In my first step, I collect my data for the button texts from an external text file. This data is stored in the data variable.
List<String> data = ReadFile("texts.txt")
Now I want to create the list of JButtons, named buttons. There I set their text and their Bounds. The Bounds are relative to the index, so the buttons are placed below each other. Finally, I add the button to the frame and to the buttons list.
List<JButton> buttons = new ArrayList<>();
for (int index = 0; index < data.size(); index++) {
JButton button = new JButton();
button.setText(data.get(index));
button.setBounds(0, index*50, 100, 50);
add(button);
buttons.add(button);
But when I execute this, the last Button ends big, the first ones also disappear when I don't hover over them, but that's based on the fact, that the last button ist placed above:
Picture of the executed script
The last button has the size of the frame, doesn't matter, if I resize the frame:
Picture of the resized screen
I hope someone can help me or tell me where I can find help. Thanks.
the last Button ends big, the first ones also disappear when I don't hover over them,
That is because by default the content pane of the JFrame uses a BorderLayout. When you add a component to the BorderLayout the button is added to the CENTER. However, only a single component can be added to the CENTER, so only the size/location of the last component added is managed by the BorderLayout.
Don't attempt to set the size/location of your components manually. It is the job of a layout manager to do this. In your case you can use a couple of panels with different layout so align your button in a column on the left. Something like:
JPanel buttonPanel = new JPanel( new GridLayout(0, 1) );
for (int index = 0; index < data.size(); index++) {
JButton button = new JButton();
button.setText(data.get(index));
button.setBounds(0, index*50, 100, 50);
//add(button);
buttonPanel.add( button );
buttons.add(button);
}
add(buttonPanel, BorderLayout.LINE_START);
Try the above code and you will notice that the buttons are all the same size, but the size keeps changing as the height of the frame changes.
So to prevent this resizing we need to allow the button to be displayed at their preferred height by using an additional layout manager:
//add(buttonPanel, BorderLayout.LINE_START);
JPanel wrapper = new JPanel( new BorderLayout() );
wrapper.add(buttonPanel, BorderLayout.PAGE_START);
add(wrapper, BorderLayout.LINE_START);
Read the Swing tutorial on Layout Manager for more information and examples.
Hey im new to java in grade 10 and I came through a small problem. I'm creating the game 4 pics on word and I can't seem to put a different image in each square of my grid.
Here is the grid
The decleration:
int row = 4;
int col = 4;
JButton a[] = new JButton [row * col];
And here's the array:
card4 = new Panel ();
Panel g = new Panel (new GridLayout (row, col));
for (int i = 0 ; i < a.length ; i++)
{
a[i] = new JButton ("Hi");
a[i].setPreferredSize (new Dimension (50,50));
g.add (a[i]);
}
How would I call out each individual button on the grid and assign a different image to it?
When you run new JButton("Hi"), you are invoking (one of) the constructor(s) for the class. JButton has several different constructors taking different parameters. One of those constructors is JButton(String text, Icon icon), that allows specifying an Icon to draw in the button. So, first you would have to create an Icon and then create the button using it, like:
Icon icon = new ImageIcon("name/of/file/containing/icon/image");
a[i] = new JButton("Button Text", icon);
If you only want an icon and no text, then just use:
Icon icon = new ImageIcon("name/of/file/containing/icon/image");
a[i] = new JButton(icon);
The file containing the image can be a jpg, png, gif. Look in Java Tutorial on now to use images and controls.
So i'm creating an array of buttons that is supposed to display and 8,8 grid, instead it displays very small buttons spreading across the window (31 buttons in a row for two rows then two more buttons on the third). If I replace:
gamePanel1.add(buttons[a][b]);
with:
frame.add(buttons[a][b]);
... it display correctly but when initialising the array, I have to resize the window to see the buttons as it does not fit to contents.
Here is the code to create the buttons:
contentPane.setLayout(new BorderLayout());
JPanel gamePanel1 = new JPanel();
buttons = new JButton[boardsize][boardsize];
mineBoard = new int[9][9];
for (int a = 0; a < boardsize; a++)
for (int b = 0; b < boardsize; b++) {
buttons[a][b] = new JButton("");
buttons[a][b].setBounds(30+gridsize*a,30+gridsize*b,gridsize,gridsize);
gamePanel1.add(buttons[a][b]);
buttons[a][b].addMouseListener(new MouseListener(a,b));
setx(a);
sety(b);
settried(false);
setmine(false);
}
contentPane.add(gamePanel1, BorderLayout.CENTER);
Can anyone tell me how I might fix this or show me how with this code I may use a different layout - i tried grid layout for the buttons but could not get it working at all.
First create a Panel as:
JPanel panel=new JPanel();
Then set the layout as
panel.setLayout(new GridLayout(8,8));
Then using a for loop create and add the buttons and the buttons will be displayed in eight by eight grid. Thanks.
I am trying to achieve a layout similar to that of a carousel. It needs to have images added horizontally with a checkbox field in the second row. I have a panel within a jscrollpane and individual images are added to the panel as labels. Please see screen shot.
screenshot
When I scroll the pane , the first row containing the images stays well within the panel..but if you notice the second row of checkboxes , it scrolls out of the panel. Here is the code ...
JLabel lab1=new JLabel();
for (int ii=0; ii<imageFiles.length; ii++) {
GridBagConstraints constraint = new GridBagConstraints();
lab1 = new BufferedImage(w,h,BufferedImage.TYPE_INT_RGB);
constraint.gridx = ii;
constraint.gridy =0;
jPanel9.add(lab1,constraint);
}
for (int ii=0; ii<imageFiles.length; ii++) {
GridBagConstraints constraint1 = new GridBagConstraints();
constraint1.anchor = GridBagConstraints.SOUTH;
chkbox = new Checkbox("asdasdada");
constraint1.gridx = ii;
constraint1.gridy =1;
jPanel9.add(chkbox, constraint1);
}
Not sure what is wrong..Any help is much appreciated..Thanks..
The problem is that you are mixing AWT components (heavyweight) with Swing components (lightweight). I have 2 recommendations:
Don't mix heavyweight and lightweight components
Try to use lightweight components as much as possible
So in your code, replace Checkbox by JCheckbox and it should work just fine.
I've five lists (enclosed in a jscrollpane) added to a jpanel in a group layout. The problem with the lists is that when a scrollbar appears automatically, the border on the bottom/top disappears (lists 2,3,4). How do I make sure that all lists look the same w.r.t border just like the first/last lists?
I've tried setting viewportborder using setViewPortBroder, but it doesn't change things much. 2,3,4 appear with light border while the rest of the lists have double borders.
EDIT
Adding code sample:
Each list you see is created using this code:
MyJList jList = new MyJList(value);
jList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
jList.setModel(listModel);
jList.setMinimumSize(new Dimension(135, 300));
jList.setMaximumSize(new Dimension(135, 300));
jList.clearSelection();
jList.setSelectionBackground(Color.darkGray);
jList.setSelectionForeground(Color.white);
jList.setBorder(new LineBorder(Color.darkGray, 1));
jList.setFixedCellHeight(30);
jList.setFixedCellWidth(100);
Font font = jList.getFont();
jList.addListSelectionListener(new ListListener());
return jList;
MyList is an extension of JList. It does nothing special, other than storing some domain related metadata. And, then lists are added to the middle panel like this:
private void layoutLists(JLabel[] labels, JList[] lists) {
panel.removeAll();
panel.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.fill = GridBagConstraints.NONE;
JScrollPane[] jScrollPanes = new JScrollPane[lists.length];
for (int index = 0; index < lists.length; index++) {
jScrollPanes[index] = new JScrollPane(lists[index]);
jScrollPanes[index].setBorder(BorderFactory.createEmptyBorder());
jScrollPanes[index].setMinimumSize(new Dimension(135, 300));
jScrollPanes[index].setMaximumSize(new Dimension(135, 300));
jScrollPanes[index].setPreferredSize(new Dimension(135, 300));
}
for (int index = 0; index < labels.length; index++) {
gbc.gridx = index;
gbc.gridy = 0;
gbc.insets = new Insets(8, 8, 8, 8);
panel.add(labels[index], gbc);
gbc.gridy = 1;
if (index == labels.length - 1) {
gbc.insets = new Insets(8, 8, 8, 13);
}
panel.add(jScrollPanes[index], gbc);
}}
The explanation of the top/bottom part of the inner (JList) border not being visible is that ... they are not visible if the vertical scrollBar appears (the list is scrolled off)
If you insist, either:
switch the borders - empty on the list itself and lineBorder on the scrollPane or
set the viewportBorderProperty of the scrollPane to the lineBorder
Beware: it's not recommended to fiddle with the default LAF settings - where-to or not the components have a border should be left to the ui to guarantee consistent visuals across your application. Nor does it look exactly good to have the left border line beside (either outside or inside) the scrollPane's vertical scrollbar.
Edit
Just noticed that you already tried the second option (and are not satisfied with the result :-) But then: where do you want the vertical border line if the scrollBar is visible? Anyway, back to the beware: the outcome is highly LAF dependent ...