package rgb;
import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
public class kleurenkiezer extends JApplet implements ChangeListener {
Container Panel;
JSlider rood;
JSlider groen;
JSlider blauw;
Drawing Pad;
JTextField tekstvak;
public kleurenkiezer () {
rood = new JSlider (0,255,0);
groen = new JSlider (0,255,0);
blauw = new JSlider (0,255,0);
rood.setMajorTickSpacing(50);
rood.setMinorTickSpacing(10);
rood.setPaintTicks(true);
rood.setPaintLabels(true);
groen.setMajorTickSpacing(50);
groen.setMinorTickSpacing(10);
groen.setPaintTicks(true);
groen.setPaintLabels(true);
blauw.setMajorTickSpacing(50);
blauw.setMinorTickSpacing(10);
blauw.setPaintTicks(true);
blauw.setPaintLabels(true);
tekstvak = new JTextField (11);
Pad = new Drawing ();
rood.addChangeListener (this);
groen.addChangeListener (this);
blauw.addChangeListener (this);
Panel = getContentPane ();
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
Panel.setLayout(gridbag);
c.gridx = 2;
c.gridy = 2;
Panel.add (Pad, c);
c.fill = GridBagConstraints.RELATIVE;
c.gridx = 3;
c.gridy = 3;
c.weightx = 30;
c.ipadx = 120;
Panel.add (tekstvak, c);
c.fill = GridBagConstraints.RELATIVE;
c.gridwidth = 3;
c.gridx = 1;
c.gridy = 1;
Panel.add (rood, c);
c.gridx = 1;
c.gridy = 1;
Panel.add (new Label("rood"),c);
c.gridx = 1;
c.gridy = 1;
Panel.add (groen, c);
c.gridx = 1;
c.gridy = 1;
Panel.add (new Label("groen"),c);
c.ipadx = 100;
c.gridx = 1;
c.gridy = 2;
Panel.add (blauw, c);
c.gridx = 3;
c.gridy = 2;
Panel.add (new Label("blauw"), c);
Pad.setSize (150, 150);
tekstvak.setText ("R=" + rood.getValue() +" G=" + groen.getValue() +"B=" + blauw.getValue());
}
public void stateChanged (ChangeEvent e) {
tekstvak.setText ("R=" + rood.getValue () + " G=" + groen.getValue () + " B=" + blauw.getValue());
Pad.setOval (rood.getValue (), groen.getValue (), blauw.getValue());
Pad.repaint ();
}
}
class Drawing extends Canvas {
int Coderood;
int Codegroen;
int Codeblauw;
public void setOval (int r, int g, int b) {
Coderood = r;
Codegroen = g;
Codeblauw = b;
}
public void paint (Graphics g) {
g.setColor (new Color (Coderood,Codegroen,Codeblauw));
g.fillOval (20, 10, 100, 100);
}
}
