113 lines
2.6 KiB
Plaintext
113 lines
2.6 KiB
Plaintext
import controlP5.*;
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// Editable Numberbox for ControlP5
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ControlP5 cp5;
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void setup() {
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size(400, 400);
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cp5 = new ControlP5(this);
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Numberbox n = cp5.addNumberbox("numbers")
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.setSize(100, 20)
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.setPosition(100, 100)
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.setValue(0)
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;
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makeEditable( n );
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}
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void draw() {
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background(0);
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}
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// function that will be called when controller 'numbers' changes
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public void numbers(float f) {
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println("received "+f+" from Numberbox numbers ");
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}
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void makeEditable( Numberbox n ) {
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// allows the user to click a numberbox and type in a number which is confirmed with RETURN
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final NumberboxInput nin = new NumberboxInput( n ); // custom input handler for the numberbox
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// control the active-status of the input handler when releasing the mouse button inside
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// the numberbox. deactivate input handler when mouse leaves.
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n.onClick(new CallbackListener() {
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public void controlEvent(CallbackEvent theEvent) {
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nin.setActive( true );
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}
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}
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).onLeave(new CallbackListener() {
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public void controlEvent(CallbackEvent theEvent) {
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nin.setActive( false ); nin.submit();
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}
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});
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}
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// input handler for a Numberbox that allows the user to
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// key in numbers with the keyboard to change the value of the numberbox
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public class NumberboxInput {
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String text = "";
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Numberbox n;
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boolean active;
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NumberboxInput(Numberbox theNumberbox) {
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n = theNumberbox;
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registerMethod("keyEvent", this );
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}
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public void keyEvent(KeyEvent k) {
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// only process key event if input is active
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if (k.getAction()==KeyEvent.PRESS && active) {
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if (k.getKey()=='\n') { // confirm input with enter
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submit();
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return;
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} else if(k.getKeyCode()==BACKSPACE) {
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text = text.isEmpty() ? "":text.substring(0, text.length()-1);
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//text = ""; // clear all text with backspace
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}
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else if(k.getKey()<255) {
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// check if the input is a valid (decimal) number
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final String regex = "\\d+([.]\\d{0,2})?";
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String s = text + k.getKey();
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if ( java.util.regex.Pattern.matches(regex, s ) ) {
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text += k.getKey();
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}
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}
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n.getValueLabel().setText(this.text);
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}
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}
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public void setActive(boolean b) {
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active = b;
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if(active) {
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n.getValueLabel().setText("");
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text = "";
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}
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}
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public void submit() {
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if (!text.isEmpty()) {
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n.setValue( float( text ) );
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text = "";
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}
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else {
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n.getValueLabel().setText(""+n.getValue());
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}
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}
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}
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