Accessing selected list elements from ControlP5 dropdown list

deano · August 2016

Hi guys,

What should I do to be able to print the relevant item? eg: I want the console to print out just the word 'ADD' or 'SUBTRACT' and so on. I want to later use this as part of a String Variable to pass into the default blendMode() function. That way I will be able to allow for user input/choice of blendMode. That way it would read as blendMode(ADD) or blendMode(SUBTRACT).

I tried getName(), etc but was not able to access it. Right now it prints:

1 {text=SUBTRACT, color=bg (0,45,90), fg (0,116,217), active (0,170,255), captionlabel (255,255,255), valuelabel (255,255,255), name=SUBTRACT, state=false, value=1, view=controlP5.ScrollableList$1@66a35419}

import controlP5.*;
import java.util.*;


ControlP5 cp5;

void setup() {
  size(400, 400);
  cp5 = new ControlP5(this);
  List l = Arrays.asList("ADD", "SUBTRACT", "DARKEST ", "LIGHTEST ", "DIFFERENCE", "EXCLUSION", 
  "MULTIPLY", "SCREEN", "OVERLAY", "HARD_LIGHT", "SOFT_LIGHT", "DODGE", "BURN");
  /* add a ScrollableList, by default it behaves like a DropdownList */
  cp5.addScrollableList("dropdown")
    .setPosition(100, 100)
      .setSize(200, 100)
        .setBarHeight(20)
          .setItemHeight(20)
            .addItems(l)
              .setType(ScrollableList.DROPDOWN) // currently supported DROPDOWN and LIST
                ;
}

void draw() {
  background(240);
}

void dropdown(int n) {
  /* request the selected item based on index n */
  println(n, cp5.get(ScrollableList.class, "dropdown").getItem(n));

  //--------------------------------------------------------------------------------------------------------  
  //MY NOTE: what should I do to be able to print the relevant item? eg: I want the console to print out
  // just the word Add or Subtract. I want to later use this as part of a String Variable to pass into 
  // the default blendMode() function. That way I will be able to allow for user input/choice of blendMode. 
  // right now it prints:

  // 1 {text=SUBTRACT, color=bg (0,45,90), fg (0,116,217), active (0,170,255), captionlabel (255,255,255), 
  //valuelabel (255,255,255), name=SUBTRACT, state=false, value=1, view=controlP5.ScrollableList$1@66a35419}
  //--------------------------------------------------------------------------------------------------------  


  /* here an item is stored as a Map  with the following key-value pairs:
   * name, the given name of the item
   * text, the given text of the item by default the same as name
   * value, the given value of the item, can be changed by using .getItem(n).put("value", "abc"); a value here is of type Object therefore can be anything
   * color, the given color of the item, how to change, see below
   * view, a customizable view, is of type CDrawable 
   */

  //   CColor c = new CColor();
  //  c.setBackground(color(255,0,0));
  //  cp5.get(ScrollableList.class, "dropdown").getItem(n).put("color", c);
}


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

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

 Format:
 ClassName : returnType methodName(parameter type)


 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 : ControllerView getView() 
 controlP5.Controller : Label getCaptionLabel() 
 controlP5.Controller : Label getValueLabel() 
 controlP5.Controller : List getControllerPlugList() 
 controlP5.Controller : Pointer getPointer() 
 controlP5.Controller : ScrollableList addCallback(CallbackListener) 
 controlP5.Controller : ScrollableList addListener(ControlListener) 
 controlP5.Controller : ScrollableList addListenerFor(int, CallbackListener) 
 controlP5.Controller : ScrollableList align(int, int, int, int) 
 controlP5.Controller : ScrollableList bringToFront() 
 controlP5.Controller : ScrollableList bringToFront(ControllerInterface) 
 controlP5.Controller : ScrollableList hide() 
 controlP5.Controller : ScrollableList linebreak() 
 controlP5.Controller : ScrollableList listen(boolean) 
 controlP5.Controller : ScrollableList lock() 
 controlP5.Controller : ScrollableList onChange(CallbackListener) 
 controlP5.Controller : ScrollableList onClick(CallbackListener) 
 controlP5.Controller : ScrollableList onDoublePress(CallbackListener) 
 controlP5.Controller : ScrollableList onDrag(CallbackListener) 
 controlP5.Controller : ScrollableList onDraw(ControllerView) 
 controlP5.Controller : ScrollableList onEndDrag(CallbackListener) 
 controlP5.Controller : ScrollableList onEnter(CallbackListener) 
 controlP5.Controller : ScrollableList onLeave(CallbackListener) 
 controlP5.Controller : ScrollableList onMove(CallbackListener) 
 controlP5.Controller : ScrollableList onPress(CallbackListener) 
 controlP5.Controller : ScrollableList onRelease(CallbackListener) 
 controlP5.Controller : ScrollableList onReleaseOutside(CallbackListener) 
 controlP5.Controller : ScrollableList onStartDrag(CallbackListener) 
 controlP5.Controller : ScrollableList onWheel(CallbackListener) 
 controlP5.Controller : ScrollableList plugTo(Object) 
 controlP5.Controller : ScrollableList plugTo(Object, String) 
 controlP5.Controller : ScrollableList plugTo(Object[]) 
 controlP5.Controller : ScrollableList plugTo(Object[], String) 
 controlP5.Controller : ScrollableList registerProperty(String) 
 controlP5.Controller : ScrollableList registerProperty(String, String) 
 controlP5.Controller : ScrollableList registerTooltip(String) 
 controlP5.Controller : ScrollableList removeBehavior() 
 controlP5.Controller : ScrollableList removeCallback() 
 controlP5.Controller : ScrollableList removeCallback(CallbackListener) 
 controlP5.Controller : ScrollableList removeListener(ControlListener) 
 controlP5.Controller : ScrollableList removeListenerFor(int, CallbackListener) 
 controlP5.Controller : ScrollableList removeListenersFor(int) 
 controlP5.Controller : ScrollableList removeProperty(String) 
 controlP5.Controller : ScrollableList removeProperty(String, String) 
 controlP5.Controller : ScrollableList setArrayValue(float[]) 
 controlP5.Controller : ScrollableList setArrayValue(int, float) 
 controlP5.Controller : ScrollableList setBehavior(ControlBehavior) 
 controlP5.Controller : ScrollableList setBroadcast(boolean) 
 controlP5.Controller : ScrollableList setCaptionLabel(String) 
 controlP5.Controller : ScrollableList setColor(CColor) 
 controlP5.Controller : ScrollableList setColorActive(int) 
 controlP5.Controller : ScrollableList setColorBackground(int) 
 controlP5.Controller : ScrollableList setColorCaptionLabel(int) 
 controlP5.Controller : ScrollableList setColorForeground(int) 
 controlP5.Controller : ScrollableList setColorLabel(int) 
 controlP5.Controller : ScrollableList setColorValue(int) 
 controlP5.Controller : ScrollableList setColorValueLabel(int) 
 controlP5.Controller : ScrollableList setDecimalPrecision(int) 
 controlP5.Controller : ScrollableList setDefaultValue(float) 
 controlP5.Controller : ScrollableList setHeight(int) 
 controlP5.Controller : ScrollableList setId(int) 
 controlP5.Controller : ScrollableList setImage(PImage) 
 controlP5.Controller : ScrollableList setImage(PImage, int) 
 controlP5.Controller : ScrollableList setImages(PImage, PImage, PImage) 
 controlP5.Controller : ScrollableList setImages(PImage, PImage, PImage, PImage) 
 controlP5.Controller : ScrollableList setLabel(String) 
 controlP5.Controller : ScrollableList setLabelVisible(boolean) 
 controlP5.Controller : ScrollableList setLock(boolean) 
 controlP5.Controller : ScrollableList setMax(float) 
 controlP5.Controller : ScrollableList setMin(float) 
 controlP5.Controller : ScrollableList setMouseOver(boolean) 
 controlP5.Controller : ScrollableList setMoveable(boolean) 
 controlP5.Controller : ScrollableList setPosition(float, float) 
 controlP5.Controller : ScrollableList setPosition(float[]) 
 controlP5.Controller : ScrollableList setSize(PImage) 
 controlP5.Controller : ScrollableList setSize(int, int) 
 controlP5.Controller : ScrollableList setStringValue(String) 
 controlP5.Controller : ScrollableList setUpdate(boolean) 
 controlP5.Controller : ScrollableList setValue(float) 
 controlP5.Controller : ScrollableList setValueLabel(String) 
 controlP5.Controller : ScrollableList setValueSelf(float) 
 controlP5.Controller : ScrollableList setView(ControllerView) 
 controlP5.Controller : ScrollableList setVisible(boolean) 
 controlP5.Controller : ScrollableList setWidth(int) 
 controlP5.Controller : ScrollableList show() 
 controlP5.Controller : ScrollableList unlock() 
 controlP5.Controller : ScrollableList unplugFrom(Object) 
 controlP5.Controller : ScrollableList unplugFrom(Object[]) 
 controlP5.Controller : ScrollableList unregisterTooltip() 
 controlP5.Controller : ScrollableList update() 
 controlP5.Controller : ScrollableList updateSize() 
 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[] getAbsolutePosition() 
 controlP5.Controller : float[] getArrayValue() 
 controlP5.Controller : float[] getPosition() 
 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) 
 controlP5.ScrollableList : List getItems() 
 controlP5.ScrollableList : Map getItem(String) 
 controlP5.ScrollableList : Map getItem(int) 
 controlP5.ScrollableList : ScrollableList addItem(String, Object) 
 controlP5.ScrollableList : ScrollableList addItems(List) 
 controlP5.ScrollableList : ScrollableList addItems(Map) 
 controlP5.ScrollableList : ScrollableList addItems(String[]) 
 controlP5.ScrollableList : ScrollableList clear() 
 controlP5.ScrollableList : ScrollableList close() 
 controlP5.ScrollableList : ScrollableList open() 
 controlP5.ScrollableList : ScrollableList removeItem(String) 
 controlP5.ScrollableList : ScrollableList removeItems(List) 
 controlP5.ScrollableList : ScrollableList setBackgroundColor(int) 
 controlP5.ScrollableList : ScrollableList setBarHeight(int) 
 controlP5.ScrollableList : ScrollableList setBarVisible(boolean) 
 controlP5.ScrollableList : ScrollableList setItemHeight(int) 
 controlP5.ScrollableList : ScrollableList setItems(List) 
 controlP5.ScrollableList : ScrollableList setItems(Map) 
 controlP5.ScrollableList : ScrollableList setItems(String[]) 
 controlP5.ScrollableList : ScrollableList setOpen(boolean) 
 controlP5.ScrollableList : ScrollableList setScrollSensitivity(float) 
 controlP5.ScrollableList : ScrollableList setType(int) 
 controlP5.ScrollableList : boolean isBarVisible() 
 controlP5.ScrollableList : boolean isOpen() 
 controlP5.ScrollableList : int getBackgroundColor() 
 controlP5.ScrollableList : int getBarHeight() 
 controlP5.ScrollableList : int getHeight() 
 controlP5.ScrollableList : void controlEvent(ControlEvent) 
 controlP5.ScrollableList : void keyEvent(KeyEvent) 
 controlP5.ScrollableList : void setDirection(int) 
 controlP5.ScrollableList : void updateItemIndexOffset() 
 java.lang.Object : String toString() 
 java.lang.Object : boolean equals(Object) 

 created: 2015/03/24 12:21:22

 */

deano · August 2016

Did some additional research and was able to solve this issue partially. Putting down the answer as well. This gets us the String Value from Map object.

void dropdown(int n) {    
  Map layerModeMap = cp5.get(ScrollableList.class, "dropdown").getItem(n);
  String layerMode = (layerModeMap.values().toArray()[0]).toString();
  println (layerMode);
}

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Accessing selected list elements from ControlP5 dropdown list

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