controlP5
Class Bang

java.lang.Object
  extended by controlP5.Controller
      extended by controlP5.Bang
All Implemented Interfaces:
CDrawable, ControllerInterface, ControlP5Constants

public class Bang
extends Controller

The Bang controller triggers an event when pressed. A bang can only be assigned to a function in your program but not to a field like other controllers. Bang extends superclass Controller, for a full documentation see the Controller reference.

+Example
/**
 * ControlP5 Bang
 * A bang triggers an event that can be received by a function named after the bang.
 * By default a bang is triggered when pressed, this can be changed to 'release' 
 * using theBang.setTriggerEvent(Bang.RELEASE).
 *
 * find a list of public methods available for the Bang Controller 
 * at the bottom of this sketch.
 *
 * by Andreas Schlegel, 2012
 * www.sojamo.de/libraries/controlp5
 * 
 */

import controlP5.*;

ControlP5 cp5;

int myColorBackground = color(0, 0, 0);

color[] col = new color[] {
  color(100), color(150), color(200), color(250)
};


void setup() {
  size(400, 600);
  noStroke();
  cp5 = new ControlP5(this);
  for (int i=0;i

Field Summary
 
Fields inherited from class controlP5.Controller
autoHeight, autoSpacing, autoWidth
 
Fields inherited from interface controlP5.ControlP5Constants
acceptClassList, ACTION_BROADCAST, ACTION_ENTER, ACTION_LEAVE, ACTION_PRESSED, ACTION_RELEASED, ACTION_RELEASEDOUTSIDE, ACTIVE, ALL, ALT, ARC, ARRAY, BACKSPACE, BASELINE, BITFONT, BOOLEAN, BOTTOM, BOTTOM_OUTSIDE, CAPTIONLABEL, CENTER, COMMANDKEY, CONTROL, controlEventClass, CUSTOM, DECREASE, DEFAULT, DELETE, DONE, DOWN, ELLIPSE, ENTER, ESCAPE, EVENT, eventMethod, FADEIN, FADEOUT, FIELD, FLOAT, HALF_PI, HIDE, HIGHLIGHT, HORIZONTAL, IDLE, IMAGE, INACTIVE, INCREASE, INTEGER, INVALID, KEYCONTROL, LEFT, LEFT_OUTSIDE, LINE, LOAD, MENU, METHOD, MOVE, MULTI, MULTIPLES, OVER, PI, PRESSED, PRINT, RELEASE, RESET, RIGHT, RIGHT_OUTSIDE, SAVE, SHIFT, SINGLE, SINGLE_COLUMN, SINGLE_ROW, SPRITE, STRING, SWITCH, SWITCH_BACK, SWITCH_FORE, TAB, TOP, TOP_OUTSIDE, TRANSITION_WAIT_FADEIN, TWO_PI, UP, VALUELABEL, VERBOSE, VERTICAL, WAIT
 
Constructor Summary
Bang(ControlP5 theControlP5, java.lang.String theName)
          Convenience constructor to extend Bang.
 
Method Summary
 int getTriggerEvent()
           
 Bang setTriggerEvent(int theEventID)
          By default a bang is triggered when the mouse is pressed.
 Bang setValue(float theValue)
          Sets the value of the bang controller.
 
Methods inherited from class controlP5.Controller
add, addCallback, addListener, align, bringToFront, bringToFront, changeValue, getAbsolutePosition, getAddress, getArrayValue, getArrayValue, getBehavior, getCaptionLabel, getColor, getControllerPlugList, getControlWindow, getDecimalPrecision, getDefaultValue, getHeight, getId, getLabel, getMax, getMin, getName, getParent, getPickingColor, getPointer, getPosition, getProperty, getProperty, getStringValue, getTab, getValue, getValueLabel, getWidth, getWindow, hide, init, isActive, isBroadcast, isInside, isLabelVisible, isListening, isLock, isMouseOver, isMousePressed, isMoveable, isUpdate, isVisible, keyEvent, linebreak, listen, listenerSize, lock, moveTo, moveTo, moveTo, moveTo, moveTo, moveTo, moveTo, moveTo, moveTo, plugTo, plugTo, plugTo, plugTo, registerProperty, registerProperty, registerTooltip, remove, remove, removeBehavior, removeCallback, removeCallback, removeListener, removeProperty, removeProperty, setAbsolutePosition, setAddress, setArrayValue, setArrayValue, setBehavior, setBroadcast, setCaptionLabel, setColor, setColorActive, setColorBackground, setColorCaptionLabel, setColorForeground, setColorValueLabel, setDecimalPrecision, setDefaultValue, setGroup, setGroup, setHeight, setId, setImage, setImage, setImages, setImages, setImages, setLabelVisible, setLock, setMax, setMin, setMouseOver, setMousePressed, setMoveable, setParent, setPosition, setPosition, setSize, setSize, setStringValue, setTab, setTab, setUpdate, setValueLabel, setView, setView, setVisible, setWidth, show, unlock, unplugFrom, unplugFrom, unregisterTooltip, update, updateAbsolutePosition, updateEvents, updateInternalEvents, updateSize
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface controlP5.ControllerInterface
continuousUpdateEvents, draw, parent, setColorLabel, setColorValue, setLabel
 
Methods inherited from interface controlP5.CDrawable
draw
 

Constructor Detail

Bang

public Bang(ControlP5 theControlP5,
            java.lang.String theName)
Convenience constructor to extend Bang.

Parameters:
theControlP5 -
theName -
+Example
/**
 * ControlP5 extending Controllers
 *
 * the following example shows how to extend the Controller class to 
 * create customizable Controllers. You can either extend the Controller class itself,
 * or any class that extends Controller itself like the Slider, Button, DropdownList, etc. 
 * 
 * How to:
 *
 * 1) do a super call to the convenience constructor requiring 
 * 2 parameter (ControlP5 instance, name)  
 *
 * 2) the Controller class has a set of empty methods that allow you to capture
 * inputs from the mouse including 
 * onEnter(), onLeave(), onPress(), onRelease(), onClick(), onScroll(int), onDrag()
 * These you can override and include functionality as needed.
 *
 * 3) use method getPointer() to return the local (relative) 
 * xy-coordinates of the controller
 *  
 * 4) after instantiation custom controllers are treated the same 
 * as default controlP5 controllers.
 *  
 * by Andreas Schlegel, 2012
 * www.sojamo.de/libraries/controlp5
 *
 */

import controlP5.*;

ControlP5 cp5;
PApplet p;

void setup() {
  size(400, 400);
  cp5 = new ControlP5(this);
  
  // create 2 groups to show nesting of custom controllers and
  //   
  Group g1 = cp5.addGroup("a").setPosition(0,100).setWidth(180);
  Group g2 = cp5.addGroup("b").setPosition(0,10).setWidth(180);
  g2.moveTo(g1);
  
  // create 2 custom Controllers from class MyButton
  // MyButton extends Controller and inherits all methods accordingly.
  new MyButton(cp5, "b1").setPosition(0, 0).setSize(180, 200).moveTo(g2);
  new MyButton(cp5, "b2").setPosition(205, 15).setSize(180, 200);
  
}


void draw() {
  background(0);
}

// b1 will be called from Controller b1
public void b1(float theValue) {
  println("yay button "+theValue);
}

public void controlEvent(ControlEvent theEvent) {
  println("controlEvent : "+theEvent);
}


// Create a custom Controller, please not that 
// MyButton extends Controller, 
// is an indicator for the super class about the type of 
// custom controller to be created.

class MyButton extends Controller {

  int current = 0xffff0000;

  float a = 128;
  
  float na;
  
  int y;
  
  // use the convenience constructor of super class Controller
  // MyButton will automatically registered and move to the 
  // default controlP5 tab.
  
  MyButton(ControlP5 cp5, String theName) {
    super(cp5, theName);
    
    // replace the default view with a custom view.
    setView(new ControllerView() {
      public void display(PApplet p, Object b) {
        // draw button background
        na += (a-na) * 0.1; 
        p.fill(current,na);
        p.rect(0, 0, getWidth(), getHeight());
        
        // draw horizontal line which can be moved on the x-axis 
        // using the scroll wheel. 
        p.fill(0,255,0);
        p.rect(0,y,width,10);
        
        // draw the custom label 
        p.fill(128);
        translate(0,getHeight()+14);
        p.text(getName(),0,0);
        p.text(getName(),0,0);
        
      }
    }
    );
  }

  // override various input methods for mouse input control
  void onEnter() {
    cursor(HAND);
    println("enter");
    a = 255;
  }
  
  void onScroll(int n) {
    println("scrolling");
    y -= n;
    y = constrain(y,0,getHeight()-10);
  }
  
  void onPress() {
    println("press");
    current = 0xffffff00;
  }
  
  void onClick() {
    Pointer p1 = getPointer();
    println("clicked at "+p1.x()+", "+p1.y());
    current = 0xffffff00;
    setValue(y);
  }

  void onRelease() {
    println("release");
    current = 0xffffffff;
  }
  
  void onMove() {
    println("moving "+this+" "+_myControlWindow.getMouseOverList());
  }

  void onDrag() {
    current = 0xff0000ff;
    Pointer p1 = getPointer();
    float dif = dist(p1.px(),p1.py(),p1.x(),p1.y());
    println("dragging at "+p1.x()+", "+p1.y()+" "+dif);
  }
  
  void onReleaseOutside() {
    onLeave();
  }

  void onLeave() {
    println("leave");
    cursor(ARROW);
    a = 128;
  }
}

Method Detail

getTriggerEvent

public int getTriggerEvent()

setTriggerEvent

public Bang setTriggerEvent(int theEventID)
By default a bang is triggered when the mouse is pressed. use setTriggerEvent(Bang.PRESSED) or setTriggerEvent(Bang.RELEASE) to define the action for triggering a bang. currently only Bang.PRESSED and Bang.RELEASE are supported.

Parameters:
theEventID -
Returns:
Bang

setValue

public Bang setValue(float theValue)
Sets the value of the bang controller. since bang can be true or false, false=0 and true=1

Specified by:
setValue in interface ControllerInterface
Overrides:
setValue in class Controller
Parameters:
theValue - float
Returns:
Bang


processing library controlP5 by Andreas Schlegel. (c) 2006-2012