I have this GUI
I have used GridBagLayout for it but I do not know why there is a huge spacing between the Plain Bread checkbox and its corresponding label.
And also, I have tried to increase the spacing along the x-axis only for the button but it has increased along all the components in the x-axis despite resetting the insets (but the spacing between the checkbox between Plain Bread and the label existed before setting the insets for the button).
Here are the codes:
public Bakery(){
super("Bakery Bread Option");
setLayout(new FlowLayout());
panel.setLayout(new GridBagLayout());
add(panel);
GridBagConstraints gbc= new GridBagConstraints();
gbc.insets= new Insets(4,4,4,4);
gbc.gridx=0;
gbc.gridy=0;
panel.add(option_Title, gbc);
gbc.gridx=0;
gbc.gridy=1;
panel.add(check_Plain, gbc);
gbc.gridx=0;
gbc.gridy=2;
panel.add(qty_Plain, gbc);
gbc.gridx=0;
gbc.gridy=3;
panel.add(qty_Brown, gbc);
gbc.insets= new Insets(0,175,0,0);
gbc.gridx=0;
gbc.gridy=4;
panel.add(calc_Btn, gbc);
gbc.insets= new Insets(4,4,4,4);
gbc.gridx=1;
gbc.gridy=1;
panel.add(plain_Bread, gbc);
gbc.gridx=1;
gbc.gridy=2;
panel.add(qtyPlainText, gbc);
gbc.gridx=1;
gbc.gridy=3;
panel.add(qtyBrownText, gbc);
gbc.gridx=2;
gbc.gridy=1;
panel.add(check_Brown, gbc);
gbc.gridx=3;
gbc.gridy=1;
panel.add(brown_Bread, gbc);
calc_Amt calc_Handler= new calc_Amt();
calc_Btn.addActionListener(calc_Handler);
}
EDIT:
This is the GUI I intend to achieve:
there is a huge spacing between the Plain Bread checkbox and its corresponding label.
Because the components are added to different columns.
The width of a column is determined by the width of the largest component in the column. So the text component determines the width of the column, not the label.
If you want the label/check box to be together, you can create a JPanel and add the two components to the panel. Then add the panel to the gridbaglayout.
Or you could have the two text fields use a columnWidth of 2, which means they will span two columns.
Related
I'm trying to make something that looks like this:
As you can see, I want the labels on opposite sides of each other on the same line in the same parent container.
I tried using the GridBagLayout, and here is my code:
JPanel cont = new JPanel();
JLabel left = new JLabel("left");
JLabel right = new JLabel("right");
GridBagConstraints gbc = new GridBagConstraints();
gbc.anchor = GridBagConstraints.WEST;
cont.add(left, gbc);
gbc = new GridBagConstraints();
gbc.anchor = GridBagConstraints.EAST;
cont.add(right, gbc);
You can use GridBagLayout, but I find using the constraints painful and sometimes unpredictable. This is easier with GridLayout and specifying the justification of the JLabel.
Here's an example that puts two JLabels in a row as in your drawing:
JPanel labelrow = new JPanel(new GridLayout(1,2));
JLabel left = new JLabel("left side", JLabel.LEFT);
JLabel right = new JLabel("right side", JLabel.RIGHT);
You can do the same with other controls, like buttons, if you put them inside JPanels with FlowLayouts that are left and right-justified.
Here's an example showing it with buttons off to each side:
JPanel buttons = new JPanel(new GridLayout(1,2));
JPanel left = new JPanel(new FlowLayout(FlowLayout.LEFT));
JPanel right = new JPanel(new FlowLayout(FlowLayout.RIGHT));
left.add(new JButton("Left"));
right.add(new JButton("Right"));
buttons.add(left);
buttons.add(right);
I'm wondering how exactly to use swing. I'd like to align 3 panels so that panel 1 is on top of panel 2, which is then on top of panel 3. Each of these panels will then have their own labels/buttons within it.
Each of these then needs to contain their own labels/buttons inside the panels.
Use a GridBagLayout or GridLayout. Start by having a look at Laying Out Components Within a Container
GridBagLayout
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.weightx = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.gridwidth = GridBagConstraints.REMAINDER;
add(new ExamplePane(1), gbc);
add(new ExamplePane(2), gbc);
add(new ExamplePane(3), gbc);
GridLayout
setLayout(new GridLayout(0, 1));
add(new ExamplePane(1));
add(new ExamplePane(2));
add(new ExamplePane(3));
Important
There are significant differences between the two and you will need to read the linked tutorial and supporting documentation on both these layouts to understand how they work and which might be best suited to you're immediate needs
I'm pretty new to Java Swing. Can someone help me figure out what I am doing wrong? Please correct me anywhere necessary. A good portion of this code was trial and error.
I have a frame, which contains a JPanel. The JPanel is using the "GridBag" layout. The code included revolves around the child JPanel on the right side as seen in the picture. For some reason, I can't seem get my vertical scrollbar working properly.
Here's the code of interest:
/// GridBagConstraints
GridBagConstraints gbc = new GridBagConstraints();
// parent jpanel for scrollpane
scrollPanel = new JPanel();
scrollPanel.setLayout(new BorderLayout());
gbc.gridx = 1;
gbc.gridy = 0;
gbc.weightx = 1.0;
gbc.weighty = 1.0;
gbc.fill = GridBagConstraints.BOTH;
add(scrollPanel, gbc);
// content jpanel for scrollpane
scrollPaneContent = new JPanel();
scrollPaneContent.setLayout(new GridLayout(0, 1, 0, 1));
// scrollPane
scrollPane = new JScrollPane();
scrollPane.setBorder(BorderFactory.createEmptyBorder(0,30,0,0));
scrollPane.setViewportView(scrollPaneContent);
scrollPanel.add(scrollPane, BorderLayout.PAGE_START);
And here is what the program looks like at the moment.
You can see the numbers just go off the screen:
Any help is greatly appreciated! Thank you.
scrollPanel.add(scrollPane, BorderLayout.PAGE_START);
You are attempting to add the scrollPane to the scrollPanel. That is not the way it works.
A JScrollPane is a container, so you need to add the panel containing the components to the scroll pane
JPanel panel = new JPanel(...);
panel.add(....);
panel.add(....);
JScrollPane scrollPane = new JScrollPane( panel );
frame.add( scrollPane );
The above code will add the panel to the "viewport" of the scroll pane.
Can somebody explain me how can I put few jButtons inside jLabel which have background image like on this image? The main jFrame is undecorated and is set to full screen.
I saw a lot of different examples like
this or like this, but these examples are showing only single button in jPanel.
Personally, I'd avoid using a JLabel for this purpose, it does not calculate it's required size based on it's content, but rather off it's icon and text properties.
This might be a good or bad thing, but it can catch your unawares if you're not aware of it.
Instead, I'd use a customised JPanel, which would allow you to define things like the resize and fill rules, for example and for example
Now, once you have that covered, you need to create a panel of your buttons. I prefer to create a dedicated class, as it makes it easier to isolate functionality and management, but that's me...
public class ButtonPane extends JPanel {
public ButtonPane() {
setLayout(new GridBagLayout());
setBorder(new EmptyBorder(8, 8, 8, 8));
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.insets = new Insets(2, 2, 2, 2);
add(new JButton("Button 1"), gbc);
add(new JButton("Button 2"), gbc);
add(new JButton("Button 3"), gbc);
}
}
Next, you need to add this panel to your background
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(backgroundPane);
frame.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.weightx = 1;
gbc.weighty = 1;
gbc.anchor = GridBagConstraints.SOUTHEAST;
gbc.insets = new Insets(30, 30, 30, 30);
ButtonPane buttonPane = new ButtonPane();
frame.add(buttonPane, gbc);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
Which can generate something like...
Have a look at Laying Out Components Within a Container and How to Use GridBagLayout for some more details
These examples are truly good enough, I think you should just learn more about swing.
For now, You could simply do:
JFrame frame = new JFrame("Hi there");
JButton b1 = new JButton("1");
JButton b2 = new JButton("2");
frame.add(b1);
frame.add(b2);
b1.setBounds(60, 60, 40, 40);
b2.setBounds(10, 10, 40, 40);
frame.setVisible(true); //in case, add frame.setLayout(null);
You can of course add buttons to JPanel instead of JFrame
I want to shorten my text field so it doesn't stretch to to the end of my jframe so this is how it looks now:
How do control the width of the textfield so it does't streatch like that I tried setPreferedSize() and setSize() yet they didn't work??
#Override
public void run() {
JFrame frame = new JFrame("Test Calculator");
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.setSize(500, 500);
JPanel panel = new JPanel(new GridBagLayout());
frame.getContentPane().add(panel, BorderLayout.NORTH);
GridBagConstraints c = new GridBagConstraints();
JLabel testLabel = new JLabel("Enter Score For Test 1: ");
c.gridx = 0;
c.gridy = 0;
c.anchor = GridBagConstraints.WEST;
c.fill = GridBagConstraints.BOTH;
c.insets = new Insets(40, 15, 15, 0);
panel.add(testLabel , c);
JTextField txtField1 = new JTextField("TextField");
c.gridx = 1;
c.gridy = 0;
c.fill = GridBagConstraints.HORIZONTAL;
c.weightx = .5;
panel.add(txtField1 , c);
}
You're telling the layout that the text field must fill horizontally, so that's what it does. Replace
c.fill = GridBagConstraints.HORIZONTAL;
by
c.fill = GridBagConstraints.NONE;
First and foremost, get rid of this:
frame.setSize(500, 500);
Instead let your components and layout managers size themselves by calling pack() on your JFrame after filling it and before setting it visible.
Next, consider either adding an empty border around your main container, or else adding an empty JLabel to your GridBagLayout using container.
You can also give your JTextField appropriate insets to give a cushion around it.
c.insets = new Insets(40, 15, 15, 40);
panel.add(txtField1, c);
You can change how many columns a particular component takes up by changing GridBagConstraints gridwidth field.
//this would make the next component take up 2 columns
c.gridwidth = 2;
You could have a jpanel and set its dimensions and layout, then add the elements to that panel and add the panel to your jframe.
There are different layout types that can be used depending on what you need to be done. I usually like to use Box's. They have methods that allow you to create horizontal/vertical struts, create rigid areas(this is what I usually use)
Box box1 = Box.createHorizontalBox();
Box box2 = Box.createVerticalBox();
box1.add(Box.createRigidArea(new Dimension(30,0)));
box1.add(testLabel);
box1.add(Box.createRigidArea(new Dimension(30,0)));
box1.add(txtField1);
box1.add(Box.createRigidArea(new Dimension(30,0)));
box2.add(Box.createRigidArea(new Dimension(0,30)));
box2.add(box1);
box2.add(Box.createRigidArea(new Dimension(0,30)));
JFrame.add(box2);
Check this link out for descriptions and how to use all the different kinds of layouts: http://docs.oracle.com/javase/tutorial/uiswing/layout/visual.html