/**
 * Text on a Curve!
 *
 * <p>Elie Zananiri<br>
 * <a href="http://www.silentlycrashing.net">silentlyCrashing::net</a><br>
 * Feb 2010</p>
 * <p>Drag the mouse horizontally to set the letter spacing.<br>
 * Drag the mouse vertically to set the arc radius.<br>
 * Type to edit the text.</p>
 */

PFont font;
TextOnCurve textOnCurve;

void setup() {
  size(400, 400);
  smooth();
  noStroke();
  
  font = createFont("Targa MS.ttf", 24);
  textFont(font);
  textAlign(CENTER);
  
  textOnCurve = new TextOnCurve("Drag the mouse or type to edit!", width/2, height/2, 150, 0, 10);
}

void draw() {
  background(255);
  fill(0);
  
  textOnCurve.draw();
}

void mouseDragged() {
  textOnCurve.setRadius((int)map(mouseY, 0, height, 0, 180));
  textOnCurve.setOffset((int)map(mouseX, 0, width,  0,  20));
}

void keyPressed() {
  if (key == BACKSPACE || key == DELETE) {
    if (textOnCurve.txt.length() > 0) {
      textOnCurve.txt = textOnCurve.txt.substring(0, textOnCurve.txt.length()-1);
    }  
  } else if (key >= 32 && key <= 126) {
    textOnCurve.txt += key;
  } 
}