controlP5

Class Button

java.lang.Object

controlP5.Controller<Button>

controlP5.Button

All Implemented Interfaces:

CDrawable, ControllerInterface<Button>, ControlP5Constants

Direct Known Subclasses:

MultiListButton

public class Button
extends Controller<Button>

A button triggers an event after it has been release. Events can be linked to functions and fields inside your program/sketch. for a full documentation of this controller see the Controller class.

+Example

/**
 * ControlP5 Button
 * this example shows how to create buttons with controlP5.
 * 
 * find a list of public methods available for the Button Controller 
 * at the bottom of this sketch's source code
 *
 * by Andreas Schlegel, 2012
 * www.sojamo.de/libraries/controlp5
 *
 */
 
import controlP5.*;

ControlP5 cp5;

int myColor = color(255);

int c1,c2;

float n,n1;


void setup() {
  size(400,600);
  noStroke();
  cp5 = new ControlP5(this);
  
  // create a new button with name 'buttonA'
  cp5.addButton("colorA")
     .setValue(0)
     .setPosition(100,100)
     .setSize(200,19)
     ;
  
  // and add another 2 buttons
  cp5.addButton("colorB")
     .setValue(100)
     .setPosition(100,120)
     .setSize(200,19)
     ;
     
  cp5.addButton("colorC")
     .setPosition(100,140)
     .setSize(200,19)
     .setValue(0)
     ;

  PImage[] imgs = {loadImage("button_a.png"),loadImage("button_b.png"),loadImage("button_c.png")};
  cp5.addButton("play")
     .setValue(128)
     .setPosition(140,300)
     .setImages(imgs)
     .updateSize()
     ;
     
  cp5.addButton("playAgain")
     .setValue(128)
     .setPosition(210,300)
     .setImages(imgs)
     .updateSize()
     ;

}

void draw() {
  background(myColor);
  myColor = lerpColor(c1,c2,n);
  n += (1-n)* 0.1; 
}

public void controlEvent(ControlEvent theEvent) {
  println(theEvent.getController().getName());
  n = 0;
}

// function colorA will receive changes from 
// controller with name colorA
public void colorA(int theValue) {
  println("a button event from colorA: "+theValue);
  c1 = c2;
  c2 = color(0,160,100);
}

// function colorB will receive changes from 
// controller with name colorB
public void colorB(int theValue) {
  println("a button event from colorB: "+theValue);
  c1 = c2;
  c2 = color(150,0,0);
}

// function colorC will receive changes from 
// controller with name colorC
public void colorC(int theValue) {
  println("a button event from colorC: "+theValue);
  c1 = c2;
  c2 = color(255,255,0);
}

public void play(int theValue) {
  println("a button event from buttonB: "+theValue);
  c1 = c2;
  c2 = color(0,0,0);
}


/*
a list of all methods available for the Button Controller
use ControlP5.printPublicMethodsFor(Button.class);
to print the following list into the console.

You can find further details about class Button in the javadoc.

Format:
ClassName : returnType methodName(parameter type)


controlP5.Button : Button activateBy(int) 
controlP5.Button : Button setOff() 
controlP5.Button : Button setOn() 
controlP5.Button : Button setSwitch(boolean) 
controlP5.Button : Button setValue(float) 
controlP5.Button : Button update() 
controlP5.Button : String getInfo() 
controlP5.Button : String toString() 
controlP5.Button : boolean getBooleanValue() 
controlP5.Button : boolean isOn() 
controlP5.Button : boolean isPressed() 
controlP5.Controller : Button addCallback(CallbackListener) 
controlP5.Controller : Button addListener(ControlListener) 
controlP5.Controller : Button bringToFront() 
controlP5.Controller : Button bringToFront(ControllerInterface) 
controlP5.Controller : Button hide() 
controlP5.Controller : Button linebreak() 
controlP5.Controller : Button listen(boolean) 
controlP5.Controller : Button lock() 
controlP5.Controller : Button plugTo(Object) 
controlP5.Controller : Button plugTo(Object, String) 
controlP5.Controller : Button plugTo(Object[]) 
controlP5.Controller : Button plugTo(Object[], String) 
controlP5.Controller : Button registerProperty(String) 
controlP5.Controller : Button registerProperty(String, String) 
controlP5.Controller : Button registerTooltip(String) 
controlP5.Controller : Button removeBehavior() 
controlP5.Controller : Button removeCallback() 
controlP5.Controller : Button removeCallback(CallbackListener) 
controlP5.Controller : Button removeListener(ControlListener) 
controlP5.Controller : Button removeProperty(String) 
controlP5.Controller : Button removeProperty(String, String) 
controlP5.Controller : Button setArrayValue(float[]) 
controlP5.Controller : Button setArrayValue(int, float) 
controlP5.Controller : Button setBehavior(ControlBehavior) 
controlP5.Controller : Button setBroadcast(boolean) 
controlP5.Controller : Button setCaptionLabel(String) 
controlP5.Controller : Button setColor(CColor) 
controlP5.Controller : Button setColorActive(int) 
controlP5.Controller : Button setColorBackground(int) 
controlP5.Controller : Button setColorCaptionLabel(int) 
controlP5.Controller : Button setColorForeground(int) 
controlP5.Controller : Button setColorValueLabel(int) 
controlP5.Controller : Button setDecimalPrecision(int) 
controlP5.Controller : Button setDefaultValue(float) 
controlP5.Controller : Button setHeight(int) 
controlP5.Controller : Button setId(int) 
controlP5.Controller : Button setImages(PImage, PImage, PImage) 
controlP5.Controller : Button setImages(PImage, PImage, PImage, PImage) 
controlP5.Controller : Button setLabelVisible(boolean) 
controlP5.Controller : Button setLock(boolean) 
controlP5.Controller : Button setMax(float) 
controlP5.Controller : Button setMin(float) 
controlP5.Controller : Button setMouseOver(boolean) 
controlP5.Controller : Button setMoveable(boolean) 
controlP5.Controller : Button setPosition(PVector) 
controlP5.Controller : Button setPosition(float, float) 
controlP5.Controller : Button setSize(PImage) 
controlP5.Controller : Button setSize(int, int) 
controlP5.Controller : Button setStringValue(String) 
controlP5.Controller : Button setUpdate(boolean) 
controlP5.Controller : Button setValueLabel(String) 
controlP5.Controller : Button setView(ControllerView) 
controlP5.Controller : Button setVisible(boolean) 
controlP5.Controller : Button setWidth(int) 
controlP5.Controller : Button show() 
controlP5.Controller : Button unlock() 
controlP5.Controller : Button unplugFrom(Object) 
controlP5.Controller : Button unplugFrom(Object[]) 
controlP5.Controller : Button unregisterTooltip() 
controlP5.Controller : Button update() 
controlP5.Controller : Button updateSize() 
controlP5.Controller : CColor getColor() 
controlP5.Controller : ControlBehavior getBehavior() 
controlP5.Controller : ControlWindow getControlWindow() 
controlP5.Controller : ControlWindow getWindow() 
controlP5.Controller : ControllerProperty getProperty(String) 
controlP5.Controller : ControllerProperty getProperty(String, String) 
controlP5.Controller : Label getCaptionLabel() 
controlP5.Controller : Label getValueLabel() 
controlP5.Controller : List getControllerPlugList() 
controlP5.Controller : PImage setImage(PImage) 
controlP5.Controller : PImage setImage(PImage, int) 
controlP5.Controller : PVector getAbsolutePosition() 
controlP5.Controller : PVector getPosition() 
controlP5.Controller : String getAddress() 
controlP5.Controller : String getInfo() 
controlP5.Controller : String getName() 
controlP5.Controller : String getStringValue() 
controlP5.Controller : String toString() 
controlP5.Controller : Tab getTab() 
controlP5.Controller : boolean isActive() 
controlP5.Controller : boolean isBroadcast() 
controlP5.Controller : boolean isInside() 
controlP5.Controller : boolean isLabelVisible() 
controlP5.Controller : boolean isListening() 
controlP5.Controller : boolean isLock() 
controlP5.Controller : boolean isMouseOver() 
controlP5.Controller : boolean isMousePressed() 
controlP5.Controller : boolean isMoveable() 
controlP5.Controller : boolean isUpdate() 
controlP5.Controller : boolean isVisible() 
controlP5.Controller : float getArrayValue(int) 
controlP5.Controller : float getDefaultValue() 
controlP5.Controller : float getMax() 
controlP5.Controller : float getMin() 
controlP5.Controller : float getValue() 
controlP5.Controller : float[] getArrayValue() 
controlP5.Controller : int getDecimalPrecision() 
controlP5.Controller : int getHeight() 
controlP5.Controller : int getId() 
controlP5.Controller : int getWidth() 
controlP5.Controller : int listenerSize() 
controlP5.Controller : void remove() 
controlP5.Controller : void setView(ControllerView, int) 
java.lang.Object : String toString() 
java.lang.Object : boolean equals(Object) 


*/

Field Summary

Fields

Modifier and Type	Field and Description
static int	autoHeight
static int	autoWidth

Fields inherited from class controlP5.Controller

autoSpacing

Fields inherited from interface controlP5.ControlP5Constants

acceptClassList, ACTION_BROADCAST, ACTION_CLICK, ACTION_DRAG, ACTION_ENTER, ACTION_EXIT, ACTION_LEAVE, ACTION_MOVE, ACTION_PRESS, ACTION_PRESSED, ACTION_RELEASE, ACTION_RELEASED, ACTION_RELEASEDOUTSIDE, ACTION_WHEEL, ACTIVE, ALL, ALT, AQUA, ARC, ARRAY, BACKSPACE, BASELINE, BITFONT, BLACK, BLUE, BOOLEAN, BOTTOM, BOTTOM_OUTSIDE, CAPTIONLABEL, CENTER, CHECKBOX, COMMANDKEY, CONTROL, controlEventClass, CUSTOM, DECREASE, DEFAULT, DELETE, DONE, DOWN, DROPDOWN, ELLIPSE, ENTER, ESCAPE, EVENT, eventMethod, FADEIN, FADEOUT, FIELD, FLOAT, FUCHSIA, GRAY, GREEN, grixel, HALF_PI, HIDE, HIGHLIGHT, HORIZONTAL, IDLE, IMAGE, INACTIVE, INCREASE, INTEGER, INVALID, J2D, KEYCONTROL, LEFT, LEFT_OUTSIDE, LIME, LINE, LIST, LOAD, MAROON, MENU, METHOD, MOVE, MULTI, MULTIPLES, NAVY, OLIVE, ORANGE, OVER, P2D, P3D, PI, PRESSED, PRINT, PURPLE, RED, RELEASE, RESET, RIGHT, RIGHT_OUTSIDE, SAVE, SHIFT, SILVER, SINGLE, SINGLE_COLUMN, SINGLE_ROW, SPRITE, standard56, standard58, STRING, SWITCH, SWITCH_BACK, SWITCH_FORE, synt24, TAB, TEAL, THEME_A, THEME_CP52014, THEME_CP5BLUE, THEME_RED, THEME_RETRO, THEME_WHITE, TOP, TOP_OUTSIDE, TRANSITION_WAIT_FADEIN, TREE, TWO_PI, UP, VALUELABEL, VERBOSE, VERTICAL, WAIT, WHITE, YELLOW

Constructor Summary

Constructors

Constructor and Description
Button()
Button(ControlP5 theControlP5, java.lang.String theName) Convenience constructor to extend Button.

Method Summary

Methods

Modifier and Type	Method and Description
Button	activateBy(int theValue) A button can be activated by a mouse PRESSED or mouse RELEASE.
boolean	getBooleanValue() Returns true or false and indicates the switch state of the button.
java.lang.String	getInfo()
boolean	isOn()
boolean	isPressed()
void	mousePressed()
void	mouseReleased()
void	mouseReleasedOutside()
Button	setOff() If the button acts as a switch, setOff will turn off the switch.
Button	setOn() If the button acts as a switch, setOn will turn on the switch.
Button	setSwitch(boolean theFlag) Turns a button into a switch, or use a Toggle instead.
Button	setValue(float theValue)
java.lang.String	toString()
Button	update() updates the value of the controller without having to set the value explicitly.
Button	updateDisplayMode(int theMode)
Button	updateViewMode(int theMode)

Methods inherited from class controlP5.Controller

add, addCallback, addListener, align, bringToFront, bringToFront, changeValue, continuousUpdateEvents, draw, 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, getView, getWidth, getWindow, hide, init, isActive, isBroadcast, isInside, isLabelVisible, isListening, isLock, isMouseOver, isMousePressed, isMoveable, isUpdate, isUserInteraction, 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, setUserInteraction, setValueLabel, setValueSelf, setView, setView, setVisible, setWidth, show, unlock, unplugFrom, unplugFrom, unregisterTooltip, updateAbsolutePosition, updateEvents, updateInternalEvents, updateSize

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface controlP5.ControllerInterface

parent, setColorLabel, setColorValue, setLabel

Field Detail

autoHeight

public static int autoHeight

autoWidth

public static int autoWidth

Constructor Detail

Button

public Button()

Button

public Button(ControlP5 theControlP5,
      java.lang.String theName)

Convenience constructor to extend Button.

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

activateBy

public Button activateBy(int theValue)

A button can be activated by a mouse PRESSED or mouse RELEASE. Default value is RELEASE.

Parameters:

theValue - use ControlP5.PRESSED or ControlP5.RELEASE as parameter

Returns:

Button

getBooleanValue

public boolean getBooleanValue()

Returns true or false and indicates the switch state of the button. setSwitch should have been set before.

Returns:

boolean

See Also:

setSwitch(boolean)

getInfo

public java.lang.String getInfo()

Overrides:

getInfo in class Controller<Button>

Returns:

String

isOn

public boolean isOn()

Returns:

boolean

isPressed

public boolean isPressed()

Returns:

boolean

mousePressed

public void mousePressed()

mouseReleased

public void mouseReleased()

mouseReleasedOutside

public void mouseReleasedOutside()

setOff

public Button setOff()

If the button acts as a switch, setOff will turn off the switch. Use setSwitch to turn a Button into a Switch.

Returns:

Button

setOn

public Button setOn()

If the button acts as a switch, setOn will turn on the switch. Use setSwitch to turn a Button into a Switch.

Returns:

Button

setSwitch

public Button setSwitch(boolean theFlag)

Turns a button into a switch, or use a Toggle instead.

Parameters:

theFlag - turns the button into a switch when true

Returns:

Button

See Also:

Toggle

setValue

public Button setValue(float theValue)

Specified by:

setValue in interface ControllerInterface<Button>

Overrides:

setValue in class Controller<Button>

Parameters:

theValue - float

toString

public java.lang.String toString()

Overrides:

toString in class Controller<Button>

update

public Button update()

updates the value of the controller without having to set the value explicitly. update does not visually update the controller. the updating status can be set with setUpdate(true/false) and checked with isUpdate().

Specified by:

update in interface ControllerInterface<Button>

Overrides:

update in class Controller<Button>

Returns:

Controller

See Also:

Controller.setUpdate(boolean), Controller.isUpdate()

updateDisplayMode

public Button updateDisplayMode(int theMode)

updateViewMode

public Button updateViewMode(int theMode)