Menu
I am using Swing's GridBagLayout for the fist time and I have so far only added two components to a container, although I intend to add more below vertically. So far, the first component (a JLabel) is positioned correctly at PAGE_START, and I have remembered to set weight attributes for the components' corresponding GridBagConstraints. The second component (a JTextField) however is not positioning as I intended and it being centered in the container rather than moving up underneath the JLabel. I have attempted to use multiple anchor constants including FIRST_LINE_START, PAGE_START, NORTH & NORTHWEST but so far nothing is working.
And so, once again I call for the gifted coders of stackoverflow for help. Below is a snippet of the code and below that is an image of the problem graphically.
// Instantiate components and configure their corresponding GridBagConstraints attributes
// refPlusType properties
refPlusType = new JLabel("<html><h3>"+"Reference"+" - "+"Job Type"+" </h3><hr /></html>");
refPlusTypeGC = new GridBagConstraints();
refPlusTypeGC.gridx = 0; // Grid position
refPlusTypeGC.gridy = 0;
refPlusTypeGC.gridwidth = 2; // Number of colums occupied by component
refPlusTypeGC.insets = new Insets(5, 10, 5, 10); // Specifies margin
refPlusTypeGC.weightx = 0.1; // Required for anchor to work.
refPlusTypeGC.weighty = 0.1; // Required for anchor to work.
refPlusTypeGC.anchor = GridBagConstraints.PAGE_START; // Position in container
// addressLine1 properties
addressLine1 = new JTextField();
addressLine1GC = new GridBagConstraints();
addressLine1GC.gridx = 0;
addressLine1GC.gridy = 1;
addressLine1GC.gridwidth = 2;
addressLine1GC.insets = new Insets(0, 10, 0, 10);
addressLine1GC.fill = GridBagConstraints.HORIZONTAL; // Specifies component fill Horizontal space
addressLine1GC.weightx = 0.1;
addressLine1GC.weighty = 0.1;
addressLine1GC.anchor = GridBagConstraints.FIRST_LINE_START;
// Add components to this HALLogisticsDetailsPanel
this.add(refPlusType, refPlusTypeGC);
this.add(addressLine1, addressLine1GC);
Image below;
Thank you all for any help you can offer.
631
Try increasing the weighty for addressLine1 to a much larger value. I did a quick test setting it to 1000:
addressLine1GC.weighty = 1000.0;
and that pushed the addressLine1 field up under the label with the whitespace below.
88
answered Jul 26 '26 05:07
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With