I wish to create a certain method that can help speed me up in GUI design. I take longest in using setBounds
. Now, I would just go for FlowLayout or GridLayout but I don't like being to reliant on those.
Basically, I am thinking of a method like placeAbove
, which places a JComponent above another JComponent. Its arguments would be the reference point JComponent and an integer for their distance from each other. I am currently having success with the following:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class BoundBender extends JFrame {
public BoundBender() {
Container c = getContentPane();
c.setLayout(null);
JLabel l1 = new JLabel("Reference Point");
JLabel l2 = new JLabel("Above Label");
JLabel l3 = new JLabel("Below Label");
JLabel l4 = new JLabel("Before Label");
JLabel l5 = new JLabel("After Label");
c.add(l1);
l1.setBounds(170, 170, 100, 20);
c.add(l2);
placeAbove(l1, 0, l2);
c.add(l3);
placeBelow(l1, 10, l3);
c.add(l4);
placeBefore(l1, 20, l4);
c.add(l5);
placeAfter(l1, 30, l5);
setVisible(true);
setSize(500, 500);
}
public static void main (String args[]) {
BoundBender bb = new BoundBender();
bb.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void placeAbove(JComponent j, int a, JComponent k) {
int x= j.getX();
int y= j.getY();
int w= j.getWidth();
int h= j.getHeight();
y=(y-h)-a;
k.setBounds(x, y, w, h);
}
public static void placeBelow(JComponent j, int a, JComponent k) {
int x= j.getX();
int y= j.getY();
int w= j.getWidth();
int h= j.getHeight();
y=y+h+a;
k.setBounds(x, y, w, h);
}
public static void placeBefore(JComponent j, int a, JComponent k) {
int x= j.getX();
int y= j.getY();
int w= j.getWidth();
int h= j.getHeight();
x=(x-w)-a;
k.setBounds(x, y, w, h);
}
public static void placeAfter(JComponent j, int a, JComponent k) {
int x= j.getX();
int y= j.getY();
int w= j.getWidth();
int h= j.getHeight();
x=x+w+a;
k.setBounds(x, y, w, h);
}
}
However, I want to make it as simple as l2.placeAbove(l1, 0)
, because that third argument feels inefficient. So any suggestions? And please use understandable terminologies.
Then use the return value thereof. Instead of being void
return an instance of Rectangle
. It would look something like:
public static Rectangle placeAbove(JComponent j, int a) {
int x= j.getX();
int y= j.getY();
int w= j.getWidth();
int h= j.getHeight();
y=(y-h)-a;
//return our new bounds projected in a Rectangle Object
return new Rectangle(x, y, w, h);
}
And then the use case would be setting the bordering Rectangle:
k.setBounds(placeAbove(j, a));
That way you use the setBounds(Rectangle r)
inherited from java.awt.Component
in JComponent.
Hope this helps!