Groovy Question
Groovy: Altering text of button when pressed
I am looking for a way to change the text of a button in Groovy when it is clicked. I can't find any documentation on it. I'm using Swingbuilder to lay the buttons out (it is for a Battleship game). I'm fairly new at using this lang.
What I'm using is:
import groovy.swing.SwingBuilder
import javax.swing.*
import java.awt.BorderLayout
class FrontEnd {
FrontEnd() {
def builder = new SwingBuilder()
builder.edt {
frame(title: 'Battleship', size: [500, 350], show: true, locationRelativeTo: null, resizable: false,
defaultCloseOperation: WindowConstants.EXIT_ON_CLOSE) {
borderLayout(vgap: 5)
panel(constraints: BorderLayout.CENTER) {
tableLayout {
tr {...
}
tr {
td {
label '1'
}
td {
button(id: 'a1', text: ' ', actionPerformed:)
}
td {
button(id: 'b1', text: ' ', actionPerformed:)
}
I don't know if it is even possible with this setup, so if there is another way I'd be glad to know about it.
Thank you.
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Answer Source
The following example assigns a button to the variable myButton which is then used for reference. Clicking on the button will set the text to hello 0, hello 1, etc:
import groovy.swing.SwingBuilder
import groovy.beans.Bindable
import static javax.swing.JFrame.EXIT_ON_CLOSE
import java.awt.*
class Example {
static def count = 0
static void main(String[] args) {
def swingBuilder = new SwingBuilder()
swingBuilder.edt {
frame(title: 'Example', size: [140, 80],
show: true, locationRelativeTo: null,
defaultCloseOperation: EXIT_ON_CLOSE) {
borderLayout(vgap: 5)
panel(constraints: BorderLayout.SOUTH) {
myButton = button text: 'Save', actionPerformed: {
myButton.setText("hello ${count++}")
}
}
}
}
}
}
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