mirror of https://github.com/sojamo/controlp5
484 lines
13 KiB
Java
484 lines
13 KiB
Java
package controlP5;
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/**
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* controlP5 is a processing gui library.
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*
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* 2006-2015 by Andreas Schlegel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* @author Andreas Schlegel (http://www.sojamo.de)
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* @modified ##date##
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* @version ##version##
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*
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*/
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import static controlP5.ControlP5.b;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import processing.core.PApplet;
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import processing.core.PGraphics;
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import processing.event.KeyEvent;
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/**
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* A ScrollableList is a list of vertically aligned items
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* which can be scrolled if required.
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*
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* @example controllers/ControlP5scrollableList
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*/
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public class ScrollableList extends Controller< ScrollableList > implements ControlListener {
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private int _myType = DROPDOWN;
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protected int _myBackgroundColor = 0x00ffffff;
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protected int itemHeight = 13;
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protected int barHeight = 10;
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private float scrollSensitivity = 1;
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private boolean isOpen = true;
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protected List< Map< String , Object > > items;
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protected int itemRange = 5;
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protected int itemHover = -1;
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private int itemIndexOffset = 0;
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private int itemSpacing = 1;
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private int _myDirection = PApplet.DOWN;
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private boolean isBarVisible = true;
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static public final int LIST = ControlP5.LIST;
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static public final int DROPDOWN = ControlP5.DROPDOWN;
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static public final int CHECKBOX = ControlP5.CHECKBOX; /* TODO */
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static public final int TREE = ControlP5.TREE; /* TODO */
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public ScrollableList( ControlP5 theControlP5 , String theName ) {
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this( theControlP5 , theControlP5.getDefaultTab( ) , theName , 0 , 0 , 99 , 199 );
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theControlP5.register( theControlP5.papplet , theName , this );
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}
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protected ScrollableList( ControlP5 theControlP5 , ControllerGroup< ? > theGroup , String theName , int theX , int theY , int theW , int theH ) {
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super( theControlP5 , theGroup , theName , theX , theY , theW , theH );
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items = new ArrayList< Map< String , Object > >( );
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updateHeight( );
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getValueLabel( ).align( PApplet.LEFT , PApplet.CENTER );
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}
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public boolean isOpen( ) {
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return isOpen;
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}
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public ScrollableList open( ) {
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return setOpen( true );
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}
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public ScrollableList close( ) {
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return setOpen( false );
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}
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public ScrollableList setOpen( boolean b ) {
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isOpen = b;
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return this;
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}
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@Override public int getHeight( ) {
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return isOpen ? super.getHeight( ) : barHeight;
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}
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public ScrollableList setType( int theType ) {
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_myType = theType;
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return this;
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}
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public void setDirection( int theDirection ) {
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_myDirection = ( theDirection == PApplet.UP ) ? PApplet.UP : PApplet.DOWN;
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}
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@Override protected boolean inside( ) {
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/* constrain the bounds of the controller to the
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* dimensions of the cp5 area, required since
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* PGraphics as render area has been introduced. */
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float x0 = PApplet.max( 0 , x( position ) + x( _myParent.getAbsolutePosition( ) ) );
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float x1 = PApplet.min( cp5.pgw , x( position ) + x( _myParent.getAbsolutePosition( ) ) + getWidth( ) );
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float y0 = PApplet.max( 0 , y( position ) + y( _myParent.getAbsolutePosition( ) ) );
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float y1 = PApplet.min( cp5.pgh , y( position ) + y( _myParent.getAbsolutePosition( ) ) + getHeight( ) );
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if ( y1 < y0 ) {
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float ty = y0;
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y0 = y1;
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y1 = ty;
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}
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return ( _myControlWindow.mouseX > x0 && _myControlWindow.mouseX < x1 && _myControlWindow.mouseY > ( y1 < y0 ? y1 : y0 ) && _myControlWindow.mouseY < ( y0 < y1 ? y1 : y0 ) );
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}
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@Override protected void onRelease( ) {
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if ( !isDragged ) {
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if ( getPointer( ).y( ) >= 0 && getPointer( ).y( ) <= barHeight ) {
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setOpen( !isOpen( ) );
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} else if ( isOpen ) {
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double n = Math.floor( ( getPointer( ).y( ) - barHeight ) / itemHeight );
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// n += itemRange; /* UP */
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int index = ( int ) n + itemIndexOffset;
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updateIndex( index );
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}
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}
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}
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private void updateIndex( int theIndex ) {
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if ( theIndex >= items.size( ) ) {
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return;
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}
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Map m = items.get( theIndex );
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switch ( _myType ) {
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case ( LIST ):
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super.setValue( theIndex );
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for ( Object o : items ) {
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( ( Map ) o ).put( "state" , false );
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}
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m.put( "state" , !ControlP5.b( m.get( "state" ) ) );
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break;
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case ( DROPDOWN ):
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super.setValue( theIndex );
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setOpen( false );
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getCaptionLabel( ).setText( ( m.get( "text" ).toString( ) ) );
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break;
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case ( CHECKBOX ):
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m.put( "state" , !ControlP5.b( m.get( "state" ) ) );
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break;
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}
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}
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public ScrollableList setValue( float theValue ) {
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updateIndex( ( int ) ( theValue ) );
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return this;
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}
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@Override protected void onDrag( ) {
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scroll( getPointer( ).dy( ) );
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}
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@Override protected void onScroll( int theValue ) {
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scroll( theValue );
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}
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private void scroll( int theValue ) {
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if ( isOpen ) {
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itemIndexOffset += theValue;
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itemIndexOffset = ( int ) ( Math.floor( Math.max( 0 , Math.min( itemIndexOffset , items.size( ) - itemRange ) ) ) );
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itemHover = -2;
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}
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}
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@Override protected void onLeave( ) {
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itemHover = -1;
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}
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private void updateHover( ) {
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if ( getPointer( ).y( ) > barHeight ) {
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double n = Math.floor( ( getPointer( ).y( ) - barHeight ) / itemHeight );
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itemHover = ( int ) ( itemIndexOffset + n );
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} else {
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itemHover = -1;
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}
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}
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@Override protected void onEnter( ) {
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updateHover( );
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}
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@Override protected void onMove( ) {
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updateHover( );
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}
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@Override protected void onEndDrag( ) {
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updateHover( );
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}
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private int updateHeight( ) {
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itemRange = ( PApplet.abs( getHeight( ) ) - ( isBarVisible( ) ? barHeight : 0 ) ) / itemHeight;
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return itemHeight * ( items.size( ) < itemRange ? items.size( ) : itemRange );
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}
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public ScrollableList setItemHeight( int theHeight ) {
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itemHeight = theHeight;
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updateHeight( );
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return this;
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}
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public ScrollableList setBarHeight( int theHeight ) {
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barHeight = theHeight;
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updateHeight( );
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return this;
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}
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public int getBarHeight( ) {
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return barHeight;
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}
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public ScrollableList setScrollSensitivity( float theSensitivity ) {
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scrollSensitivity = theSensitivity;
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return this;
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}
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public ScrollableList setBarVisible( boolean b ) {
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isBarVisible = b;
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updateHeight( );
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return this;
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}
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public boolean isBarVisible( ) {
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return isBarVisible;
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}
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private Map< String , Object > getDefaultItemMap( String theName , Object theValue ) {
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Map< String , Object > item = new HashMap< String , Object >( );
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item.put( "name" , theName );
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item.put( "text" , theName );
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item.put( "value" , theValue );
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item.put( "color" , getColor( ) );
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item.put( "view" , new CDrawable( ) {
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@Override public void draw( PGraphics theGraphics ) {
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}
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} );
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item.put( "state" , false );
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return item;
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}
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public ScrollableList addItem( String theName , Object theValue ) {
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Map< String , Object > item = getDefaultItemMap( theName , theValue );
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items.add( item );
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return this;
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}
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public ScrollableList addItems( String[] theItems ) {
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addItems( Arrays.asList( theItems ) );
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return this;
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}
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public ScrollableList addItems( List< String > theItems ) {
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for ( int i = 0 ; i < theItems.size( ) ; i++ ) {
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addItem( theItems.get( i ).toString( ) , i );
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}
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return this;
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}
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public ScrollableList addItems( Map< String , Object > theItems ) {
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for ( Map.Entry< String , Object > item : theItems.entrySet( ) ) {
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addItem( item.getKey( ) , item.getValue( ) );
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}
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return this;
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}
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public ScrollableList setItems( String[] theItems ) {
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setItems( Arrays.asList( theItems ) );
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return this;
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}
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public ScrollableList setItems( List< String > theItems ) {
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items.clear( );
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return addItems( theItems );
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}
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public ScrollableList setItems( Map< String , Object > theItems ) {
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items.clear( );
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return addItems( theItems );
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}
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public ScrollableList removeItems( List< String > theItems ) {
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for ( String s : theItems ) {
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removeItem( s );
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}
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return this;
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}
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public ScrollableList removeItem( String theName ) {
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if ( theName != null ) {
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List l = new ArrayList( );
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for ( Map m : items ) {
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if ( theName.equals( m.get( "name" ) ) ) {
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l.add( m );
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}
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}
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items.removeAll( l );
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}
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return this;
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}
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public void updateItemIndexOffset( ) {
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int m1 = items.size( ) > itemRange ? ( itemIndexOffset + itemRange ) : items.size( );
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int n = ( m1 - items.size( ) );
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if ( n >= 0 ) {
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itemIndexOffset -= n;
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}
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}
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public Map< String , Object > getItem( int theIndex ) {
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return items.get( theIndex );
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}
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public Map< String , Object > getItem( String theName ) {
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if ( theName != null ) {
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for ( Map< String , Object > o : items ) {
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if ( theName.equals( o.get( "name" ) ) ) {
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return o;
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}
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}
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}
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return Collections.EMPTY_MAP;
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}
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public List getItems( ) {
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return Collections.unmodifiableList( items );
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}
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public ScrollableList clear( ) {
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for ( int i = items.size( ) - 1 ; i >= 0 ; i-- ) {
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items.remove( i );
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}
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items.clear( );
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itemIndexOffset = 0;
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return this;
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}
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@Override public void controlEvent( ControlEvent theEvent ) {
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// TODO Auto-generated method stub
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}
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public ScrollableList setBackgroundColor( int theColor ) {
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_myBackgroundColor = theColor;
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return this;
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}
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public int getBackgroundColor( ) {
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return _myBackgroundColor;
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}
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@Override @ControlP5.Invisible public ScrollableList updateDisplayMode( int theMode ) {
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_myDisplayMode = theMode;
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switch ( theMode ) {
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case ( DEFAULT ):
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_myControllerView = new ScrollableListView( );
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break;
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case ( IMAGE ):
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case ( SPRITE ):
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case ( CUSTOM ):
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default:
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break;
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}
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return this;
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}
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static public class ScrollableListView implements ControllerView< ScrollableList > {
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public void display( PGraphics g , ScrollableList c ) {
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// setHeight( -200 ); /* UP */
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g.noStroke( );
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if ( c.isBarVisible( ) ) {
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boolean b = c.itemHover == -1 && c.isInside && !c.isDragged;
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g.fill( b ? c.getColor( ).getForeground( ) : c.getColor( ).getBackground( ) );
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g.rect( 0 , 0 , c.getWidth( ) , c.barHeight );
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g.pushMatrix( );
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g.translate( c.getWidth( ) - 8 , c.barHeight / 2 - 2 );
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g.fill( c.getColor( ).getCaptionLabel( ) );
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if ( c.isOpen( ) ) {
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g.triangle( -3 , 0 , 3 , 0 , 0 , 3 );
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} else {
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g.triangle( -3 , 3 , 3 , 3 , 0 , 0 );
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}
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g.popMatrix( );
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c.getCaptionLabel( ).draw( g , 4 , c.barHeight / 2 );
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}
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if ( c.isOpen( ) ) {
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int bar = ( c.isBarVisible( ) ? c.barHeight : 0 );
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int h = ( ( c.updateHeight( ) ) );
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g.pushMatrix( );
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// g.translate( 0 , - ( h + bar +
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// c.itemSpacing ) ); /* UP */
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g.fill( c.getBackgroundColor( ) );
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g.rect( 0 , bar , c.getWidth( ) , h );
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g.pushMatrix( );
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g.translate( 0 , ( bar == 0 ? 0 : ( c.barHeight + c.itemSpacing ) ) );
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/* draw visible items */
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c.updateItemIndexOffset( );
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int m0 = c.itemIndexOffset;
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int m1 = c.items.size( ) > c.itemRange ? ( c.itemIndexOffset + c.itemRange ) : c.items.size( );
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for ( int i = m0 ; i < m1 ; i++ ) {
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Map< String , Object > item = c.items.get( i );
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CColor color = ( CColor ) item.get( "color" );
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g.fill( ( b( item.get( "state" ) ) ) ? color.getActive( ) : ( i == c.itemHover ) ? ( c.isMousePressed ? color.getActive( ) : color.getForeground( ) ) : color.getBackground( ) );
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g.rect( 0 , 0 , c.getWidth( ) , c.itemHeight - 1 );
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c.getValueLabel( ).set( item.get( "text" ).toString( ) ).draw( g , 4 , c.itemHeight / 2 );
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g.translate( 0 , c.itemHeight );
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}
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g.popMatrix( );
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if ( c.isInside ) {
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int m = c.items.size( ) - c.itemRange;
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if ( m > 0 ) {
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g.fill( c.getColor( ).getCaptionLabel( ) );
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g.pushMatrix( );
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int s = 4; /* spacing */
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int s2 = s / 2;
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g.translate( c.getWidth( ) - s , c.barHeight );
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int len = ( int ) PApplet.map( ( float ) Math.log( m * 10 ) , 0 , 10 , h , 0 );
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int pos = ( int ) ( PApplet.map( c.itemIndexOffset , 0 , m , s2 , h - len - s2 ) );
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g.rect( 0 , pos , s2 , len );
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g.popMatrix( );
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}
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}
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g.popMatrix( );
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}
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}
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}
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public void keyEvent( KeyEvent theKeyEvent ) {
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if ( isInside && theKeyEvent.getAction( ) == KeyEvent.PRESS ) {
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switch ( theKeyEvent.getKeyCode( ) ) {
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case ( ControlP5.UP ):
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scroll( theKeyEvent.isAltDown( ) ? -itemIndexOffset : theKeyEvent.isShiftDown( ) ? -10 : -1 );
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updateHover( );
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break;
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case ( ControlP5.DOWN ):
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scroll( theKeyEvent.isAltDown( ) ? items.size( ) - itemRange : theKeyEvent.isShiftDown( ) ? 10 : 1 );
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updateHover( );
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break;
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case ( ControlP5.LEFT ):
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break;
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case ( ControlP5.RIGHT ):
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break;
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case ( ControlP5.ENTER ):
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onRelease( );
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break;
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}
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}
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}
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/* TODO keycontrol: arrows, return dragging moving items
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* sorting custom view custom event types */
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}
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