How can I set line wrap on a JButton??

Question

Hi...
I am working on an application that required to have a long label on a button and I was wondering if anyone know how to set line wrap on a JButton. Any suggestion will be greatly appreciate.

Answer 1

If it is not inconvenient for you to use mouse events instead of action events this procedure may be adequate.
Invoke "createImage" on the JButton to obtain an "Image" object then use "getGraphics" on the image object to get "Graphics" object. Next call "getFontMetrics" on the "Graphics" object to obtain "FontMetrics". Now you can get the size of a String drawn from the "drawString" method of the "Graphics" object. This can be obtained in an int returned from "getHeight" method in "FontMetrics".
You can obtain the center of the "Image" by using "getSize" method from JButton and dividing it by 2.
You can get the width of characters by using "FontMetrics" "charsWidth" method. Now you can use the int returned from charsWidth and getHeight to align text in the JButton "Image" by using the "Dimension"
object returned by the "getSize" method. Now invoke
the "drawString" method for as many lines of text as you would like to display. After finished drawing strings you
construct an ImageIcon with its one parameter being the "Image" object you have created and drawn on.
Now you invoke the "setIcon" method of JButton to insert the ImageIcon as the image displayed on the JButton.
At this point you have a JButton with all the text you want displayed on it, but with no event handling. So
you are going to add a MouseListener to the JButton.
In the MouseListener override the "mouseClicked" method
inside the method obtain the MouseEvent's location through "getX" and "getY". Next invoke the JButton's
"getLocation" method to obtain a "Point" object. Now invoke the "Point" objects "getX" and "getY" methods to return the int locations of the origin of the JButton.
Now invoke the "getSize" method of the JButton to get
a "Dimension" object containing the size of the JButton.
Now you can use boolean operations to determine if the
x, y coordinate that was obtained by the MouseEvent falls within the boundries of the JButton component.
Something like this:
public void mouseClicked(MouseEvent mouseEvent) {
Point point=jbutton.getLocation();
Dimension dimension=jbutton.getSize();
int pX=point.getX();
int pY=point.getY();
int dW=dimension.width;
int dH=dimension.height;
int mX=mouseEvent.getX();
int mY=mouseEvent.getY();
if(mX>pX & mX<(pX+dW)) {
if(mY>pY & mY<(pY+dH)) {
//This means that the point does indeed fall within
//the boundries of the JButton, so place the code
//that would normally appear in actionPerformed
//within this code block
Good Luck.