controlp5/src/controlP5/ColorPicker.java

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package controlP5;
/**
* controlP5 is a processing gui library.
*
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* 2006-2015 by Andreas Schlegel
*
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* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
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* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*
* @author Andreas Schlegel (http://www.sojamo.de)
* @modified ##date##
* @version ##version##
*
*/
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import processing.core.PGraphics;
/**
* A simple color picker using sliders to adjust RGBA values.
*
* @example controllers/ControlP5colorPicker
*/
public class ColorPicker extends ControlGroup< ColorPicker > {
protected Slider sliderRed;
protected Slider sliderGreen;
protected Slider sliderBlue;
protected Slider sliderAlpha;
protected Canvas currentColor;
private Object _myPlug;
private String _myPlugName;
private boolean broadcast;
/**
* Convenience constructor to extend ColorPicker.
*
* @example use/ControlP5extendController
* @param theControlP5
* @param theName
*/
public ColorPicker( ControlP5 theControlP5 , String theName ) {
this( theControlP5 , theControlP5.getDefaultTab( ) , theName , 0 , 0 , 255 , 10 );
theControlP5.register( theControlP5.papplet , theName , this );
}
protected ColorPicker( ControlP5 theControlP5 , ControllerGroup< ? > theParent , String theName , int theX , int theY , int theWidth , int theHeight ) {
super( theControlP5 , theParent , theName , theX , theY , theWidth , theHeight );
isBarVisible = false;
isCollapse = false;
_myArrayValue = new float[] { 255 , 255 , 255 , 255 };
currentColor = addCanvas( new ColorField( ) );
sliderRed = cp5.addSlider( theName + "-red" , 0 , 255 , 0 , 0 , theWidth , theHeight );
cp5.removeProperty( sliderRed );
sliderRed.setId( 0 );
sliderRed.setBroadcast( false );
sliderRed.addListener( this );
sliderRed.moveTo( this );
sliderRed.setMoveable( false );
sliderRed.setColorBackground( 0xff660000 );
sliderRed.setColorForeground( 0xffaa0000 );
sliderRed.setColorActive( 0xffff0000 );
sliderRed.getCaptionLabel( ).setVisible( false );
sliderRed.setDecimalPrecision( 0 );
sliderRed.setValue( 255 );
sliderGreen = cp5.addSlider( theName + "-green" , 0 , 255 , 0 , theHeight + 1 , theWidth , theHeight );
cp5.removeProperty( sliderGreen );
sliderGreen.setId( 1 );
sliderGreen.setBroadcast( false );
sliderGreen.addListener( this );
sliderGreen.moveTo( this );
sliderGreen.setMoveable( false );
sliderGreen.setColorBackground( 0xff006600 );
sliderGreen.setColorForeground( 0xff00aa00 );
sliderGreen.setColorActive( 0xff00ff00 );
sliderGreen.getCaptionLabel( ).setVisible( false );
sliderGreen.setDecimalPrecision( 0 );
sliderGreen.setValue( 255 );
sliderBlue = cp5.addSlider( theName + "-blue" , 0 , 255 , 0 , ( theHeight + 1 ) * 2 , theWidth , theHeight );
cp5.removeProperty( sliderBlue );
sliderBlue.setId( 2 );
sliderBlue.setBroadcast( false );
sliderBlue.addListener( this );
sliderBlue.moveTo( this );
sliderBlue.setMoveable( false );
sliderBlue.setColorBackground( 0xff000066 );
sliderBlue.setColorForeground( 0xff0000aa );
sliderBlue.setColorActive( 0xff0000ff );
sliderBlue.getCaptionLabel( ).setVisible( false );
sliderBlue.setDecimalPrecision( 0 );
sliderBlue.setValue( 255 );
sliderAlpha = cp5.addSlider( theName + "-alpha" , 0 , 255 , 0 , ( theHeight + 1 ) * 3 , theWidth , theHeight );
cp5.removeProperty( sliderAlpha );
sliderAlpha.setId( 3 );
sliderAlpha.setBroadcast( false );
sliderAlpha.addListener( this );
sliderAlpha.moveTo( this );
sliderAlpha.setMoveable( false );
sliderAlpha.setColorBackground( 0xff666666 );
sliderAlpha.setColorForeground( 0xffaaaaaa );
sliderAlpha.setColorActive( 0xffffffff );
sliderAlpha.getCaptionLabel( ).setVisible( false );
sliderAlpha.setDecimalPrecision( 0 );
sliderAlpha.getValueLabel( ).setColor( 0xff000000 );
sliderAlpha.setValue( 255 );
_myPlug = cp5.papplet;
_myPlugName = getName( );
if ( !ControllerPlug.checkPlug( _myPlug , _myPlugName , new Class[] { int.class } ) ) {
_myPlug = null;
}
broadcast = true;
}
public ColorPicker plugTo( Object theObject ) {
_myPlug = theObject;
if ( !ControllerPlug.checkPlug( _myPlug , _myPlugName , new Class[] { int.class } ) ) {
_myPlug = null;
}
return this;
}
public ColorPicker plugTo( Object theObject , String thePlugName ) {
_myPlug = theObject;
_myPlugName = thePlugName;
if ( !ControllerPlug.checkPlug( _myPlug , _myPlugName , new Class[] { int.class } ) ) {
_myPlug = null;
}
return this;
}
@Override
@ControlP5.Invisible
public void controlEvent( ControlEvent theEvent ) {
if ( broadcast ) {
_myArrayValue[ theEvent.getId( ) ] = theEvent.getValue( );
broadcast( );
}
}
private ColorPicker broadcast( ) {
ControlEvent ev = new ControlEvent( this );
setValue( getColorValue( ) );
cp5.getControlBroadcaster( ).broadcast( ev , ControlP5Constants.EVENT );
if ( _myPlug != null ) {
try {
Method method = _myPlug.getClass( ).getMethod( _myPlugName , int.class );
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method.invoke( _myPlug , ( int ) getColorValue( ) );
} catch ( SecurityException ex ) {
ex.printStackTrace( );
} catch ( NoSuchMethodException ex ) {
ex.printStackTrace( );
} catch ( IllegalArgumentException ex ) {
ex.printStackTrace( );
} catch ( IllegalAccessException ex ) {
ex.printStackTrace( );
} catch ( InvocationTargetException ex ) {
ex.printStackTrace( );
}
}
return this;
}
/**
* Requires an array of size 4 for RGBA
*
* @return ColorPicker
*/
@Override
public ColorPicker setArrayValue( float[] theArray ) {
broadcast = false;
sliderRed.setValue( theArray[ 0 ] );
sliderGreen.setValue( theArray[ 1 ] );
sliderBlue.setValue( theArray[ 2 ] );
sliderAlpha.setValue( theArray[ 3 ] );
broadcast = true;
_myArrayValue = theArray;
return broadcast( );
}
/**
* {@inheritDoc}
*/
@Override
public ColorPicker setColorValue( int theColor ) {
setArrayValue( new float[] { theColor >> 16 & 0xff , theColor >> 8 & 0xff , theColor >> 0 & 0xff , theColor >> 24 & 0xff } );
return this;
}
public int getColorValue( ) {
return 0xffffffff & ( int ) ( _myArrayValue[ 3 ] ) << 24 | ( int ) ( _myArrayValue[ 0 ] ) << 16 | ( int ) ( _myArrayValue[ 1 ] ) << 8 | ( int ) ( _myArrayValue[ 2 ] ) << 0;
}
private class ColorField extends Canvas {
public void draw( PGraphics theGraphics ) {
theGraphics.fill( _myArrayValue[ 0 ] , _myArrayValue[ 1 ] , _myArrayValue[ 2 ] , _myArrayValue[ 3 ] );
theGraphics.rect( 0 , 44 , getWidth( ) , 15 );
}
}
// public ColorPicker setColor(int... theArray) {
// switch (theArray.length) {
// case (1):
// setArrayValue(new float[] { theArray[0], theArray[0], theArray[0], getColorValue() >> 24 &
// 0xff });
// break;
// case (2):
// setArrayValue(new float[] { theArray[0], theArray[0], theArray[0], theArray[1] });
// break;
// case (3):
// setArrayValue(new float[] { theArray[0], theArray[1], theArray[2], getColorValue() >> 24 &
// 0xff });
// break;
// case (4):
// setArrayValue(new float[] { theArray[0], theArray[1], theArray[2], theArray[3] });
// break;
// }
// return this;
// }
/**
* @exclude {@inheritDoc}
*/
@Override
public String getInfo( ) {
return "type:\tColorPicker\n" + super.toString( );
}
}
// some inspiration
// http://www.nbdtech.com/blog/archive/2008/04/27/Calculating-the-Perceived-Brightness-of-a-Color.aspx
// http://alienryderflex.com/hsp.html