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com.metsci.glimpse.painter.track.TrackPainter Maven / Gradle / Ivy
/*
* Copyright (c) 2016, Metron, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Metron, Inc. nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL METRON, INC. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.metsci.glimpse.painter.track;
import java.awt.Color;
import java.awt.Font;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.locks.ReentrantLock;
import javax.media.opengl.GL;
import javax.media.opengl.GL2;
import javax.media.opengl.GLContext;
import com.jogamp.opengl.util.awt.TextRenderer;
import com.metsci.glimpse.axis.Axis1D;
import com.metsci.glimpse.axis.Axis2D;
import com.metsci.glimpse.context.GlimpseBounds;
import com.metsci.glimpse.event.mouse.GlimpseMouseEvent;
import com.metsci.glimpse.painter.base.GlimpseDataPainter2D;
import com.metsci.glimpse.support.font.FontUtils;
import com.metsci.glimpse.support.selection.SpatialSelectionAxisListener;
import com.metsci.glimpse.support.selection.SpatialSelectionListener;
import com.metsci.glimpse.support.selection.TemporalSelectionListener;
import com.metsci.glimpse.util.quadtree.QuadTreeXys;
/**
* Paints groups of line segments of points with associated timestamps.
* Often these points represent the locations of objects moving over time
* (here referred to as a track). {@code TrackPainter} allows very fast
* selection of specified time segments within the set of tracks, hiding
* all segments outside this time window.
*
* @author ulman
* @see com.metsci.glimpse.examples.animated.AnimatedGeoPlotExample
*/
public class TrackPainter extends GlimpseDataPainter2D
{
public static final int QUAD_TREE_BIN_MAX = 1000;
public static final long SPATIAL_SELECTION_UPDATE_RATE = 50;
public static final int TRACK_SIZE_ESTIMATE = 100;
public static final int TRACK_LABEL_OFFSET_X = 8;
public static final int TRACK_LABEL_OFFSET_Y = 8;
public static final Comparator comparator = Point.getTimeComparator( );
public static final Font textFont = FontUtils.getDefaultBold( 12 );
protected int dataBufferSize = 0;
protected FloatBuffer dataBuffer = null;
protected ReentrantLock trackUpdateLock = null;
// mapping from id to Track
protected Map tracks;
// true indicates that new data must be loaded onto the GPU
protected volatile boolean newData = false;
// tracks with new data which must be loaded onto the GPU
protected Set updatedTracks;
// mapping from id to LoadedTrack (GPU-side track information)
protected Map loadedTracks;
// spatial index on Points
protected QuadTreeXys spatialIndex;
// the overall start and end times set by displayTimeRange
// when new tracks are created, they inherit these time bounds
protected Point startTimeRange = getStartPoint( Long.MIN_VALUE );
protected Point selectedTimeRange = getEndPoint( Long.MAX_VALUE );
protected Point endTimeRange = getEndPoint( Long.MAX_VALUE );
protected Collection> temporalSelectionListeners;
protected TextRenderer fontRenderer;
public TrackPainter( )
{
this( false );
}
public TrackPainter( boolean enableSpatialIndex )
{
if ( enableSpatialIndex ) this.spatialIndex = new QuadTreeXys( QUAD_TREE_BIN_MAX );
this.temporalSelectionListeners = new CopyOnWriteArrayList>( );
this.tracks = new HashMap<>( );
this.updatedTracks = new HashSet<>( );
this.loadedTracks = new HashMap<>( );
this.trackUpdateLock = new ReentrantLock( );
this.fontRenderer = new TextRenderer( textFont );
}
public void addTemporalSelectionListener( TemporalSelectionListener listener )
{
this.temporalSelectionListeners.add( listener );
}
public void removeTemporalSelectionListener( TemporalSelectionListener listener )
{
this.temporalSelectionListeners.remove( listener );
}
public void addSpatialSelectionListener( Axis2D axis, SpatialSelectionListener listener )
{
axis.addAxisListener( new SpatialSelectionAxisListener( this, listener ) );
}
public Collection getTrackHeads( )
{
this.trackUpdateLock.lock( );
try
{
Collection trackHeads = new ArrayList( tracks.size( ) );
for ( Track track : tracks.values( ) )
{
if ( track != null )
{
trackHeads.add( track.getTrackHead( ) );
}
}
return trackHeads;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public Point getTrackHead( Object trackId )
{
this.trackUpdateLock.lock( );
try
{
Track track = this.tracks.get( trackId );
if ( track != null )
{
return track.getTrackHead( );
}
else
{
return null;
}
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void deleteAll( )
{
this.trackUpdateLock.lock( );
try
{
for ( Track track : tracks.values( ) )
{
track.delete( );
}
if ( this.spatialIndex != null ) this.spatialIndex = new QuadTreeXys( QUAD_TREE_BIN_MAX );
this.updatedTracks.addAll( tracks.values( ) );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void deleteTrack( Object trackId )
{
this.trackUpdateLock.lock( );
try
{
if ( !tracks.containsKey( trackId ) ) return;
Track track = tracks.get( trackId );
if ( this.spatialIndex != null )
{
for ( Point p : track.points )
{
this.spatialIndex.remove( p );
}
}
track.delete( );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void clearTrack( Object trackId )
{
this.trackUpdateLock.lock( );
try
{
if ( !tracks.containsKey( trackId ) ) return;
Track track = tracks.get( trackId );
if ( this.spatialIndex != null )
{
for ( Point p : track.points )
{
this.spatialIndex.remove( p );
}
}
track.clear( );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void addPoint( Object trackId, Object pointId, double x, double y, long time )
{
addPoint( trackId, new Point( trackId, pointId, x, y, time ) );
}
public void addPoints( Object trackId, List points )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.add( points );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setLineColor( Object trackId, float[] color )
{
setLineColor( trackId, color[0], color[1], color[2], color[3] );
}
public void setLineColor( Object trackId, float r, float g, float b, float a )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setLineColor( r, g, b, a );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setLineWidth( Object trackId, float width )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setLineWidth( width );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setPointColor( Object trackId, float[] color )
{
setPointColor( trackId, color[0], color[1], color[2], color[3] );
}
public void setPointColor( Object trackId, float r, float g, float b, float a )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setPointColor( r, g, b, a );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setPointSize( Object trackId, float size )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setPointSize( size );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setShowPoints( Object trackId, boolean show )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setShowPoints( show );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setHeadPointColor( Object trackId, float[] color )
{
setHeadPointColor( trackId, color[0], color[1], color[2], color[3] );
}
public void setHeadPointColor( Object trackId, float r, float g, float b, float a )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setHeadPointColor( r, g, b, a );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setHeadPointSize( Object trackId, float size )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setHeadPointSize( size );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setShowHeadPoint( Object trackId, boolean show )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setShowHeadPoint( show );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setShowLines( Object trackId, boolean show )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setShowLines( show );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setDotted( Object trackId, boolean dotted )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setTrackStipple( dotted );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setDotted( Object trackId, int stippleFactor, short stipplePattern )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setTrackStipple( true );
track.setTrackStipple( stippleFactor, stipplePattern );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setLabelColor( Object trackId, float[] color )
{
setLabelColor( trackId, color[0], color[1], color[2], color[3] );
}
public void setLabelColor( Object trackId, float r, float g, float b, float a )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setLabelColor( r, g, b, a );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setLabelLineColor( Object trackId, float[] color )
{
setLabelLineColor( trackId, color[0], color[1], color[2], color[3] );
}
public void setLabelLineColor( Object trackId, float r, float g, float b, float a )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setLabelLineColor( r, g, b, a );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setShowLabelLine( Object trackId, boolean show )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setShowLabelLine( show );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setLabel( Object trackId, String label )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setShowLabel( true );
track.setLabel( label );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void setShowLabel( Object trackId, boolean show )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setShowLabel( show );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void displayTimeRange( Object trackId, double startTime, double endTime )
{
displayTimeRange( trackId, ( long ) Math.ceil( startTime ), ( long ) Math.floor( endTime ) );
}
public void displayTimeRange( double startTime, double endTime )
{
displayTimeRange( ( long ) Math.ceil( startTime ), ( long ) Math.floor( endTime ) );
}
public void displayTimeRange( Object trackId, long startTime, long endTime )
{
displayTimeRange( trackId, startTime, endTime, endTime );
}
public void displayTimeRange( Object trackId, long startTime, long endTime, long selectedTime )
{
Point startPoint = getStartPoint( startTime );
Point endPoint = getEndPoint( endTime );
Point selectedPoint = getEndPoint( selectedTime );
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.setTimeRange( startPoint, endPoint, selectedPoint );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
public void displayTimeRange( long startTime, long endTime )
{
displayTimeRange( startTime, endTime, endTime );
}
public void displayTimeRange( long startTime, long endTime, long selectedTime )
{
startTimeRange = getStartPoint( startTime );
endTimeRange = getEndPoint( endTime );
selectedTimeRange = getEndPoint( selectedTime );
this.trackUpdateLock.lock( );
try
{
for ( Track track : tracks.values( ) )
{
track.setTimeRange( startTimeRange, endTimeRange, selectedTimeRange );
}
this.updatedTracks.addAll( tracks.values( ) );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
/**
* Returns all Points within the given bounding box in axis coordinates (regardless
* of time stamp).
*
* @param minX left edge of the bounding box
* @param maxX right edge of the bounding box
* @param minY bottom edge of the bounding box
* @param maxY top edge of the bounding box
* @return all Points within the bounding box
*/
public Collection getGeoRange( double minX, double maxX, double minY, double maxY )
{
if ( spatialIndex != null )
{
this.trackUpdateLock.lock( );
try
{
return spatialIndex.search( ( float ) minX, ( float ) maxX, ( float ) minY, ( float ) maxY );
}
finally
{
this.trackUpdateLock.unlock( );
}
}
else
{
return Collections.emptyList( );
}
}
/**
* @see #getPixelRange(Axis2D, double, double, int, int)
*/
public Collection getTimePixelRange( Axis2D axis, double minTime, double maxTime, double centerX, double centerY, int pixelWidth, int pixelHeight )
{
return filter( getPixelRange( axis, centerX, centerY, pixelWidth, pixelHeight ) );
}
/**
* Returns all the Points within the bounding box specified with a center in axis coordinates
* and width/height specified in pixels.
*
* This is useful for querying for points near the cursor. When used in this way, the pixelWidth
* and pixelHeight arguments control how close the user must get to a point before it is selected.
* The Axis2D argument is usually obtained from a GlimpseMouseListener.
*
* @param axis the axis to use to convert pixel values into axis coordinates.
* @param centerX the x center of the query box in axis coordinates
* @param centerY the y center of the query box in axis coordinates
* @param pixelWidth the width of the query box in pixels
* @param pixelHeight the height of the query box in pixels
* @return all the Points within the specified bounding box
*/
public Collection getPixelRange( Axis2D axis, double centerX, double centerY, int pixelWidth, int pixelHeight )
{
double width = pixelWidth / axis.getAxisX( ).getPixelsPerValue( );
double height = pixelHeight / axis.getAxisY( ).getPixelsPerValue( );
return getGeoRange( centerX - width / 2, centerX + width / 2, centerY - height / 2, centerY + height / 2 );
}
/**
* Returns the closest point to the cursor position. Distance is measured in pixels, not
* in axis units. However, the cursor position is specified in axis coordinates. If the closest
* point is further away than maxPixelDistance then null is returned.
*
* @param axis the axis to use to convert pixel values into axis coordinates
* @param centerX the x center of the query box in axis coordinates
* @param centerY the y center of the query box in axis coordinates
* @param maxPixelDistance only search for nearby points within this pixel radius
* @return the closest point to the given axis coordinates, or null if none exists
*/
public Point getNearestPoint( Axis2D axis, double centerX, double centerY, int maxPixelDistance )
{
Axis1D axisX = axis.getAxisX( );
Axis1D axisY = axis.getAxisY( );
int centerPixelX = axisX.valueToScreenPixel( centerX );
int centerPixelY = axisY.getSizePixels( ) - axisY.valueToScreenPixel( centerY );
return getNearestPoint( axis, centerPixelX, centerPixelY, maxPixelDistance );
}
/**
* Returns the closest Point to the mouse position specified in the given GlimpseMouseEvent.
* If the closest point is farther away than maxPixelDistance pixels, then null is returned.
*
* @param mouseEvent event containing a mouse position
* @param maxPixelDistance the farthest point allowed
* @return the closest point to the provided mouse position
*/
public Point getNearestPoint( GlimpseMouseEvent mouseEvent, int maxPixelDistance )
{
Axis2D axis = mouseEvent.getAxis2D( );
int centerPixelX = mouseEvent.getX( );
int centerPixelY = mouseEvent.getY( );
return getNearestPoint( axis, centerPixelX, centerPixelY, maxPixelDistance );
}
/**
* Returns the closest point to the cursor position. Distance is measured in pixels, not
* in axis units. The cursor position is specified in pixel/screen coordinates.
* If the closest point is further away than maxPixelDistance then null is returned.
*
* @param axis the axis to use to convert pixel values into axis coordinates
* @param centerPixelX the x center of the query box in pixel coordinates
* @param centerPixelY the y center of the query box in pixel coordinates
* @param maxPixelDistance only search for nearby points within this pixel radius
* @return the closest point to the given axis coordinates, or null if none exists
*/
public Point getNearestPoint( Axis2D axis, int centerPixelX, int centerPixelY, int maxPixelDistance )
{
Axis1D axisX = axis.getAxisX( );
Axis1D axisY = axis.getAxisY( );
double centerX = axisX.screenPixelToValue( centerPixelX );
double centerY = axisY.screenPixelToValue( axisY.getSizePixels( ) - centerPixelY );
Collection points = getTimePixelRange( axis, startTimeRange.time, endTimeRange.time, centerX, centerY, maxPixelDistance * 2, maxPixelDistance * 2 );
Point minPoint = null;
double minDistance = 0;
for ( Point point : points )
{
double pixelX = axisX.valueToScreenPixel( point.x );
double pixelY = axisY.getSizePixels( ) - axisY.valueToScreenPixel( point.y );
double diffX = pixelX - centerPixelX;
double diffY = pixelY - centerPixelY;
double dist = Math.sqrt( diffX * diffX + diffY * diffY );
if ( minPoint == null || dist < minDistance )
{
minPoint = point;
minDistance = dist;
}
}
return minPoint;
}
public Collection getTimeGeoRange( double minTime, double maxTime, double minX, double maxX, double minY, double maxY )
{
return getTimeGeoRange( ( long ) Math.ceil( minTime ), ( long ) Math.floor( maxTime ), minX, maxX, minY, maxY );
}
/**
* @return all the points within a specified bounding box which fall between the specified times.
*/
public Collection getTimeGeoRange( long minTime, long maxTime, double minX, double maxX, double minY, double maxY )
{
if ( spatialIndex != null )
{
this.trackUpdateLock.lock( );
try
{
return filter( spatialIndex.search( ( float ) minX, ( float ) maxX, ( float ) minY, ( float ) maxY ), minTime, maxTime );
}
finally
{
this.trackUpdateLock.unlock( );
}
}
else
{
return Collections.emptyList( );
}
}
/**
* @return all the points within a specified bounding box which fall between the time
* span specified for their track using displayTimeRange.
*/
public Collection getTimeGeoRange( double minX, double maxX, double minY, double maxY )
{
if ( spatialIndex != null )
{
this.trackUpdateLock.lock( );
try
{
return filter( spatialIndex.search( ( float ) minX, ( float ) maxX, ( float ) minY, ( float ) maxY ) );
}
finally
{
this.trackUpdateLock.unlock( );
}
}
else
{
return Collections.emptyList( );
}
}
/**
* Reclaims direct host memory used to move track vertices between the host and device.
* By default, this memory is never reclaimed because it is slow to allocate. However,
* if the vertex data will not change in the near future, it may be beneficial to call
* this method to free up memory in the meantime.
*/
public void gcDataBuffer( )
{
this.trackUpdateLock.lock( );
try
{
this.dataBuffer = null;
this.dataBufferSize = 0;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
protected Point getStartPoint( long time )
{
return new Point( Integer.MIN_VALUE, Integer.MIN_VALUE, 0, 0, time );
}
protected Point getEndPoint( long time )
{
return new Point( Integer.MAX_VALUE, Integer.MAX_VALUE, 0, 0, time );
}
protected Collection filter( Collection points )
{
Collection result = new ArrayList( );
Iterator iter = points.iterator( );
while ( iter.hasNext( ) )
{
Point point = iter.next( );
Track track = tracks.get( point.getTrackId( ) );
if ( track == null )
{
continue;
}
if ( comparator.compare( point, track.selectionStart ) >= 0 && comparator.compare( point, track.selectionEnd ) < 0 )
{
result.add( point );
}
}
return result;
}
protected Collection filter( Collection points, long minTime, long maxTime )
{
Collection result = new ArrayList( );
Iterator iter = points.iterator( );
while ( iter.hasNext( ) )
{
Point point = iter.next( );
if ( point.getTime( ) <= minTime || point.getTime( ) > maxTime ) continue;
result.add( point );
}
return result;
}
protected void addPoint( Object trackId, Point point )
{
this.trackUpdateLock.lock( );
try
{
Track track = getOrCreateTrack( trackId );
track.add( point );
this.updatedTracks.add( track );
this.newData = true;
}
finally
{
this.trackUpdateLock.unlock( );
}
}
// must be called while holding trackUpdateLock
protected Track getOrCreateTrack( Object trackId )
{
Track track = this.tracks.get( trackId );
if ( track == null )
{
track = new Track( trackId );
track.setTimeRange( startTimeRange, endTimeRange, selectedTimeRange );
this.tracks.put( trackId, track );
}
return track;
}
protected void ensureDataBufferSize( int needed )
{
if ( dataBuffer == null || dataBufferSize < needed )
{
dataBufferSize = needed;
dataBuffer = ByteBuffer.allocateDirect( needed * 2 * 4 ).order( ByteOrder.nativeOrder( ) ).asFloatBuffer( );
}
}
protected void notifyTemporalSelectionListeners( Map newTrackHeads )
{
for ( TemporalSelectionListener listener : temporalSelectionListeners )
{
listener.selectionChanged( newTrackHeads );
}
}
protected LoadedTrack getOrCreateLoadedTrack( Object id, Track track )
{
LoadedTrack loaded = loadedTracks.get( id );
if ( loaded == null )
{
loaded = new LoadedTrack( track );
loadedTracks.put( id, loaded );
}
return loaded;
}
@Override
public void paintTo( GL2 gl, GlimpseBounds bounds, Axis2D axis )
{
int width = bounds.getWidth( );
int height = bounds.getHeight( );
if ( this.newData )
{
this.trackUpdateLock.lock( );
try
{
// loop through all tracks with new posits
for ( Track track : updatedTracks )
{
Object id = track.trackId;
if ( track.isDeletePending( ) || track.isClearPending( ) )
{
LoadedTrack loaded = getOrCreateLoadedTrack( id, track );
loaded.dispose( gl );
loadedTracks.remove( id );
// If the track was deleted then recreated in between calls to display0(),
// (both isDataInserted() and isDeletePending() are true) then don't remove the track
if ( track.isDeletePending( ) && !track.isDataInserted( ) )
{
tracks.remove( id );
continue;
}
}
LoadedTrack loaded = getOrCreateLoadedTrack( id, track );
loaded.loadSettings( track );
int trackSize = track.getSize( );
if ( track.isDataInserted( ) )
{
if ( !loaded.glBufferInitialized || loaded.glBufferMaxSize < trackSize )
{
// if the track doesn't have a gl buffer or it is too small we must
// copy all the track's data into a new, larger buffer
// if this is the first time we have allocated memory for this track
// don't allocate any extra, it may never get added to
// however, once a track has been updated once, we assume it is likely
// to be updated again and give it extra memory
if ( loaded.glBufferInitialized )
{
gl.glDeleteBuffers( 1, new int[] { loaded.glBufferHandle }, 0 );
loaded.glBufferMaxSize = Math.max( ( int ) ( loaded.glBufferMaxSize * 1.5 ), trackSize );
}
else
{
loaded.glBufferMaxSize = trackSize;
}
// copy all the track data into a host buffer
ensureDataBufferSize( loaded.glBufferMaxSize );
dataBuffer.rewind( );
track.loadIntoBuffer( dataBuffer, 0, trackSize );
// create a new device buffer handle
int[] bufferHandle = new int[1];
gl.glGenBuffers( 1, bufferHandle, 0 );
loaded.glBufferHandle = bufferHandle[0];
loaded.glBufferInitialized = true;
// copy data from the host buffer into the device buffer
gl.glBindBuffer( GL2.GL_ARRAY_BUFFER, loaded.glBufferHandle );
gl.glBufferData( GL2.GL_ARRAY_BUFFER, loaded.glBufferMaxSize * 2 * BYTES_PER_FLOAT, dataBuffer.rewind( ), GL2.GL_DYNAMIC_DRAW );
}
else
{
// there is enough empty space in the device buffer to accommodate all the new data
int insertOffset = track.getInsertOffset( );
int insertCount = track.getInsertCount( );
// copy all the new track data into a host buffer
ensureDataBufferSize( insertCount );
dataBuffer.rewind( );
track.loadIntoBuffer( dataBuffer, insertOffset, trackSize );
// update the device buffer with the new data
gl.glBindBuffer( GL2.GL_ARRAY_BUFFER, loaded.glBufferHandle );
gl.glBufferSubData( GL2.GL_ARRAY_BUFFER, insertOffset * 2 * BYTES_PER_FLOAT, insertCount * 2 * BYTES_PER_FLOAT, dataBuffer.rewind( ) );
}
}
track.reset( );
}
this.updatedTracks.clear( );
this.newData = false;
}
finally
{
this.trackUpdateLock.unlock( );
}
glHandleError( gl );
}
if ( loadedTracks.isEmpty( ) ) return;
gl.glEnableClientState( GL2.GL_VERTEX_ARRAY );
boolean labelOn = false;
for ( LoadedTrack loaded : loadedTracks.values( ) )
{
if ( !loaded.glBufferInitialized ) continue;
int glOffset = loaded.glSelectedOffset;
int glSize = loaded.glSelectedSize;
gl.glBindBuffer( GL2.GL_ARRAY_BUFFER, loaded.glBufferHandle );
gl.glVertexPointer( 2, GL2.GL_FLOAT, 0, 0 );
if ( loaded.linesOn )
{
gl.glColor4fv( loaded.lineColor, 0 );
gl.glLineWidth( loaded.lineWidth );
if ( loaded.stippleOn )
{
gl.glEnable( GL2.GL_LINE_STIPPLE );
gl.glLineStipple( loaded.stippleFactor, loaded.stipplePattern );
}
gl.glDrawArrays( GL2.GL_LINE_STRIP, glOffset, glSize );
if ( loaded.stippleOn )
{
gl.glDisable( GL2.GL_LINE_STIPPLE );
}
}
if ( loaded.pointsOn )
{
gl.glColor4fv( loaded.pointColor, 0 );
gl.glPointSize( loaded.pointSize );
gl.glDrawArrays( GL2.GL_POINTS, glOffset, glSize );
}
if ( loaded.headPointOn )
{
gl.glColor4fv( loaded.headPointColor, 0 );
gl.glPointSize( loaded.headPointSize );
gl.glBegin( GL2.GL_POINTS );
try
{
gl.glVertex2d( loaded.headPosX, loaded.headPosY );
}
finally
{
gl.glEnd( );
}
}
if ( loaded.labelOn ) labelOn = true;
}
// don't bother iterating through all the tracks again if none have labels turned on
if ( labelOn && fontRenderer != null )
{
fontRenderer.beginRendering( width, height );
try
{
for ( LoadedTrack loaded : loadedTracks.values( ) )
{
if ( loaded.labelOn && loaded.label != null )
{
int posX = axis.getAxisX( ).valueToScreenPixel( loaded.headPosX );
int posY = axis.getAxisY( ).valueToScreenPixel( loaded.headPosY );
fontRenderer.setColor( loaded.labelColor );
fontRenderer.draw( loaded.label, posX + TRACK_LABEL_OFFSET_X, posY + TRACK_LABEL_OFFSET_Y );
}
}
}
finally
{
fontRenderer.endRendering( );
}
gl.glMatrixMode( GL2.GL_PROJECTION );
gl.glLoadIdentity( );
gl.glOrtho( 0, width, 0, height, -1, 1 );
gl.glMatrixMode( GL2.GL_MODELVIEW );
gl.glLoadIdentity( );
for ( LoadedTrack loaded : loadedTracks.values( ) )
{
if ( loaded.labelOn && loaded.labelLineOn && loaded.label != null )
{
int posX = axis.getAxisX( ).valueToScreenPixel( loaded.headPosX );
int posY = axis.getAxisY( ).valueToScreenPixel( loaded.headPosY );
gl.glColor3fv( loaded.labelLineColor, 0 );
gl.glBegin( GL2.GL_LINES );
try
{
gl.glVertex2i( posX, posY );
gl.glVertex2i( posX + TRACK_LABEL_OFFSET_X, posY + TRACK_LABEL_OFFSET_Y );
}
finally
{
gl.glEnd( );
}
}
}
}
}
@Override
public void dispose( GLContext context )
{
GL gl = context.getGL( );
this.trackUpdateLock.lock( );
try
{
for ( LoadedTrack track : loadedTracks.values( ) )
{
track.dispose( gl );
}
}
finally
{
this.trackUpdateLock.unlock( );
}
if ( fontRenderer != null )
{
fontRenderer.dispose( );
fontRenderer = null;
}
}
////////////////////////////////////////
///// Internal Data Structures /////
///// not intended for use outside /////
///// of TrackPainter /////
////////////////////////////////////////
// A Track modified only on the gl display() thread
// (so no locking is required when calling its methods
// and accessing its data)
protected static class LoadedTrack
{
// the unique identifier of the track
public Object trackId;
// track display attributes
public float[] lineColor = new float[4];
public float lineWidth;
public boolean linesOn;
public float[] pointColor = new float[4];
public float pointSize;
public boolean pointsOn;
public int stippleFactor;
public short stipplePattern;
public boolean stippleOn;
public String label;
public boolean labelOn;
public double headPosX;
public double headPosY;
public Color labelColor;
public float[] labelLineColor = new float[4];
public boolean labelLineOn;
public float headPointSize;
public float[] headPointColor = new float[4];
public boolean headPointOn;
public boolean glBufferInitialized = false;
// a reference to the device buffer for this track
public int glBufferHandle;
// the maximum allocated size of the device buffer for this track
public int glBufferMaxSize;
// the currently used size of the device buffer for this track
public int glBufferCurrentSize;
// the offset into the device buffer to begin displaying track vertices
public int glSelectedOffset;
// the number of bytes from the device buffer to display
public int glSelectedSize;
// LoadedTrack isn't intended to be used outside of TrackPainter
protected LoadedTrack( Track track )
{
this.trackId = track.trackId;
this.loadSettings( track );
}
public void loadSettings( Track track )
{
this.glSelectedSize = track.selectedSize;
this.glSelectedOffset = track.selectedOffset;
this.copyColor( this.lineColor, track.lineColor );
this.copyColor( this.pointColor, track.pointColor );
this.lineWidth = track.lineWidth;
this.pointSize = track.pointSize;
this.pointsOn = track.pointsOn;
this.linesOn = track.linesOn;
this.stippleOn = track.stippleOn;
this.stippleFactor = track.stippleFactor;
this.stipplePattern = track.stipplePattern;
this.glBufferCurrentSize = track.getSize( );
if ( glBufferCurrentSize == 0 || track.selectedSize == 0 || track.trackHead == null )
{
this.headPointOn = false;
this.labelOn = false;
}
else
{
this.copyColor( this.labelLineColor, track.labelLineColor );
this.labelLineOn = track.labelLineOn;
this.copyColor( this.headPointColor, track.headPointColor );
this.headPointSize = track.headPointSize;
this.headPointOn = track.headPointOn;
this.label = track.label;
this.labelOn = track.labelOn;
this.headPosX = track.headPosX;
this.headPosY = track.headPosY;
this.labelColor = track.labelColor;
}
}
protected void copyColor( float[] to, float[] from )
{
to[0] = from[0];
to[1] = from[1];
to[2] = from[2];
to[3] = from[3];
}
@Override
public int hashCode( )
{
final int prime = 31;
int result = 1;
result = prime * result + ( ( trackId == null ) ? 0 : trackId.hashCode( ) );
return result;
}
@Override
public boolean equals( Object obj )
{
if ( this == obj ) return true;
if ( obj == null ) return false;
if ( getClass( ) != obj.getClass( ) ) return false;
LoadedTrack other = ( LoadedTrack ) obj;
if ( trackId == null )
{
if ( other.trackId != null ) return false;
}
else if ( !trackId.equals( other.trackId ) ) return false;
return true;
}
public void dispose( GL gl )
{
if ( glBufferInitialized )
{
glBufferInitialized = false;
gl.glDeleteBuffers( 1, new int[] { glBufferHandle }, 0 );
}
}
}
// A Track modified in the gl display() thread as well as
// by the user, all methods should be called while holding
// trackUpdateLock
protected class Track
{
// the unique identifier of the track
protected Object trackId;
// the points making up the track
protected List points;
// the lowest index of the last change made to the track
// when the track data is copied to a device buffer, all
// data from here to the end of the track must be copied
protected int insertIndex;
// if true, insert index is valid
protected boolean dataInserted = false;
// if true, this track is waiting to be deleted
protected boolean deletePending = false;
// if true, this track is waiting to be cleared
protected boolean clearPending = false;
// the offset into the points list of the first point to display
protected int selectedOffset;
// the number of points in the points list to display
protected int selectedSize;
protected Point selectionStart;
protected Point selectionEnd;
protected Point selectionCurrent;
protected Point trackHead;
// track display attributes
protected float[] lineColor = new float[] { 1.0f, 1.0f, 0.0f, 1.0f };
protected float lineWidth = 2;
protected boolean linesOn = true;
protected float[] pointColor = new float[] { 1.0f, 0.0f, 0.0f, 1.0f };
protected float pointSize = 4;
protected boolean pointsOn = true;
protected int stippleFactor = 1;
protected short stipplePattern = ( short ) 0x00FF;
protected boolean stippleOn = false;
protected String label = null;
protected boolean labelOn = false;
protected double headPosX;
protected double headPosY;
protected Color labelColor = new Color( 1.0f, 1.0f, 0.0f, 1.0f );
protected boolean labelLineOn = true;
protected float[] labelLineColor = new float[] { 1.0f, 1.0f, 0.0f, 1.0f };
protected float headPointSize = 7;
protected float[] headPointColor = new float[] { 1.0f, 0.0f, 0.0f, 1.0f };
protected boolean headPointOn = false;
// Track isn't intended to be used outside of TrackPainter
protected Track( Object trackId )
{
this.trackId = trackId;
this.points = new ArrayList( TRACK_SIZE_ESTIMATE );
}
public void setTimeRange( Point startPoint, Point endPoint, Point selectedPoint )
{
selectionStart = startPoint;
selectionEnd = endPoint;
selectionCurrent = selectedPoint;
checkTimeRange( );
}
public void checkTimeRange( )
{
if ( selectionStart == null || selectionEnd == null || selectionCurrent == null ) return;
int startIndex = firstIndexBeforeTime( selectionStart ) + 1;
int endIndex = firstIndexAfterTime( selectionEnd ) - 1;
int selectedIndex = firstIndexAfterTime( selectionCurrent ) - 1;
Point previousTrackHead = trackHead;
if ( endIndex < startIndex )
{
selectedOffset = 0;
selectedSize = 0;
trackHead = null;
if ( previousTrackHead != null ) notifyTemporalSelectionListeners( Collections.singletonMap( trackId, trackHead ) );
}
else
{
selectedOffset = startIndex;
selectedSize = endIndex - startIndex + 1;
if ( selectedIndex > endIndex ) selectedIndex = endIndex;
if ( selectedIndex < startIndex ) selectedIndex = startIndex;
trackHead = points.get( selectedIndex );
headPosX = trackHead.getX( );
headPosY = trackHead.getY( );
if ( !trackHead.equals( previousTrackHead ) ) notifyTemporalSelectionListeners( Collections.singletonMap( trackId, trackHead ) );
}
}
public void setHeadPointColor( float r, float g, float b, float a )
{
headPointColor[0] = r;
headPointColor[1] = g;
headPointColor[2] = b;
headPointColor[3] = a;
}
public void setHeadPointSize( float size )
{
headPointSize = size;
}
public void setShowHeadPoint( boolean show )
{
headPointOn = show;
}
public void setPointColor( float r, float g, float b, float a )
{
pointColor[0] = r;
pointColor[1] = g;
pointColor[2] = b;
pointColor[3] = a;
}
public void setPointSize( float size )
{
pointSize = size;
}
public void setShowPoints( boolean show )
{
pointsOn = show;
}
public void setLineColor( float r, float g, float b, float a )
{
lineColor[0] = r;
lineColor[1] = g;
lineColor[2] = b;
lineColor[3] = a;
}
public void setLineWidth( float width )
{
lineWidth = width;
}
public void setShowLines( boolean show )
{
linesOn = show;
}
public void setTrackStipple( boolean activate )
{
this.stippleOn = activate;
}
public void setTrackStipple( int stippleFactor, short stipplePattern )
{
this.stippleFactor = stippleFactor;
this.stipplePattern = stipplePattern;
}
public void setLabelColor( float r, float g, float b, float a )
{
labelColor = new Color( r, g, b, a );
}
public void setLabelLineColor( float r, float g, float b, float a )
{
labelLineColor[0] = r;
labelLineColor[1] = g;
labelLineColor[2] = b;
labelLineColor[3] = a;
}
public void setShowLabelLine( boolean show )
{
labelLineOn = show;
}
public void setLabel( String label )
{
this.label = label;
}
public void setShowLabel( boolean show )
{
this.labelOn = show;
}
public void add( List _points )
{
if ( _points == null || _points.size( ) == 0 ) return;
List sortedPoints = new ArrayList( _points );
Collections.sort( sortedPoints, comparator );
Point firstPoint = sortedPoints.get( 0 );
// add the point to the temporal and spatial indexes
int index = firstIndexAfterTime( firstPoint );
if ( index == points.size( ) )
{
points.addAll( index, sortedPoints );
}
else
{
for ( Point point : sortedPoints )
{
index = firstIndexAfterTime( firstPoint );
points.add( index, point );
}
}
if ( spatialIndex != null )
{
for ( Point point : _points )
spatialIndex.add( point );
}
// determine if the new point resides inside the selected time range
checkTimeRange( );
// set flag indicating this track contains new data
insertIndex = 0;
dataInserted = true;
}
public void add( Point point )
{
// add the point to the temporal and spatial indexes
int index = firstIndexAfterTime( point );
points.add( index, point );
if ( spatialIndex != null ) spatialIndex.add( point );
// determine if the new point resides inside the selected time range
checkTimeRange( );
// set flag indicating this track contains new data
if ( !dataInserted || index < insertIndex )
{
insertIndex = index;
dataInserted = true;
}
}
public void delete( )
{
deletePending = true;
clear( );
}
public void clear( )
{
clearPending = true;
dataInserted = false;
trackHead = null;
points.clear( );
checkTimeRange( );
}
public int firstIndexAfterTime( Point point )
{
int index = Collections.binarySearch( points, point, comparator );
if ( index < 0 ) index = - ( index + 1 );
while ( index < points.size( ) && points.get( index ).time == point.time )
{
index++;
}
return index;
}
public int firstIndexBeforeTime( Point point )
{
int index = Collections.binarySearch( points, point, comparator );
if ( index < 0 ) index = - ( index + 1 ) - 1;
while ( 0 <= index && points.get( index ).time == point.time )
{
index--;
}
return index;
}
public boolean isDataInserted( )
{
return dataInserted;
}
public boolean isDeletePending( )
{
return deletePending;
}
public boolean isClearPending( )
{
return clearPending;
}
public int getInsertCount( )
{
return getSize( ) - getInsertOffset( );
}
public int getInsertOffset( )
{
return insertIndex;
}
public void reset( )
{
dataInserted = false;
clearPending = false;
deletePending = false;
}
public int getSize( )
{
return points.size( );
}
public Point getTrackHead( )
{
return trackHead;
}
public void loadIntoBuffer( FloatBuffer buffer, int offset, int size )
{
for ( int i = offset; i < size; i++ )
{
points.get( i ).loadIntoBuffer( buffer );
}
}
public Object getTrackId( )
{
return trackId;
}
@Override
public int hashCode( )
{
final int prime = 31;
int result = 1;
result = prime * result + getOuterType( ).hashCode( );
result = prime * result + ( ( trackId == null ) ? 0 : trackId.hashCode( ) );
return result;
}
@Override
public boolean equals( Object obj )
{
if ( this == obj ) return true;
if ( obj == null ) return false;
if ( getClass( ) != obj.getClass( ) ) return false;
Track other = ( Track ) obj;
if ( !getOuterType( ).equals( other.getOuterType( ) ) ) return false;
if ( trackId == null )
{
if ( other.trackId != null ) return false;
}
else if ( !trackId.equals( other.trackId ) ) return false;
return true;
}
private TrackPainter getOuterType( )
{
return TrackPainter.this;
}
}
}
